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1

Furnaces and Boilers | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Furnaces and Boilers Furnaces and Boilers Furnaces and Boilers June 24, 2012 - 4:56pm Addthis Upgrading to a high efficiency furnace or boiler is an effective way to save money on home heating. Upgrading to a high efficiency furnace or boiler is an effective way to save money on home heating. What does this mean for me? To maintain your heating system's efficiency and ensure healthy indoor air quality, it's critical to maintain the unit and its venting mechanism. Proper maintenance extends the life of your furnace or boiler and saves you money. Most U.S. homes are heated with either furnaces or boilers. Furnaces heat air and distribute the heated air through the house using ducts. Boilers heat water, and provide either hot water or steam for heating. Steam is distributed via pipes to steam radiators, and hot water can be distributed

2

Furnace and Boiler Basics | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Furnace and Boiler Basics Furnace and Boiler Basics Furnace and Boiler Basics August 16, 2013 - 2:50pm Addthis Furnaces heat air and distribute the heated air through a building using ducts; boilers heat water, providing either hot water or steam for heating. Furnaces Furnaces are the most common heating systems used in homes in the United States. They can be all electric, gas-fired (including propane or natural gas), or oil-fired. Boilers Boilers consist of a vessel or tank where heat produced from the combustion of such fuels as natural gas, fuel oil, or coal is used to generate hot water or steam. Many buildings have their own boilers, while other buildings have steam or hot water piped in from a central plant. Commercial boilers are manufactured for high- or low-pressure applications.

3

Biomass Boiler and Furnace Emissions and Safety Regulations in...  

Open Energy Info (EERE)

Biomass Boiler and Furnace Emissions and Safety Regulations in the Northeast States Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Biomass Boiler and Furnace Emissions...

4

Building Technologies Office: Residential Furnaces and Boilers Framework  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Residential Furnaces Residential Furnaces and Boilers Framework Meeting to someone by E-mail Share Building Technologies Office: Residential Furnaces and Boilers Framework Meeting on Facebook Tweet about Building Technologies Office: Residential Furnaces and Boilers Framework Meeting on Twitter Bookmark Building Technologies Office: Residential Furnaces and Boilers Framework Meeting on Google Bookmark Building Technologies Office: Residential Furnaces and Boilers Framework Meeting on Delicious Rank Building Technologies Office: Residential Furnaces and Boilers Framework Meeting on Digg Find More places to share Building Technologies Office: Residential Furnaces and Boilers Framework Meeting on AddThis.com... About Standards & Test Procedures Implementation, Certification & Enforcement

5

Gas-Fired Boilers and Furnaces | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Gas-Fired Boilers and Furnaces Gas-Fired Boilers and Furnaces Gas-Fired Boilers and Furnaces May 16, 2013 - 4:36pm Addthis A residential natural gas meter. A residential natural gas meter. What does this mean for me? Your gas boiler or furnace may be oversized, particularly if you've upgraded the energy efficiency of your home. Your gas boiler or furnace can be retrofitted to improve its energy efficiency. Gas boilers and furnaces can be fueled by either natural gas or propane with simple modifications accounting for the different characteristics of the fuels. Propane is usually more expensive as a fuel, but is available throughout the United States. Natural gas supplies depend on having a natural gas distribution system in your area, and areas at the end of the pipeline (such as the Northeast) tend to pay higher prices for natural gas.

6

Gas-Fired Boilers and Furnaces | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Gas-Fired Boilers and Furnaces Gas-Fired Boilers and Furnaces Gas-Fired Boilers and Furnaces May 16, 2013 - 4:36pm Addthis A residential natural gas meter. A residential natural gas meter. What does this mean for me? Your gas boiler or furnace may be oversized, particularly if you've upgraded the energy efficiency of your home. Your gas boiler or furnace can be retrofitted to improve its energy efficiency. Gas boilers and furnaces can be fueled by either natural gas or propane with simple modifications accounting for the different characteristics of the fuels. Propane is usually more expensive as a fuel, but is available throughout the United States. Natural gas supplies depend on having a natural gas distribution system in your area, and areas at the end of the pipeline (such as the Northeast) tend to pay higher prices for natural gas.

7

Oil-Fired Boilers and Furnaces | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Oil-Fired Boilers and Furnaces Oil-Fired Boilers and Furnaces Oil-Fired Boilers and Furnaces May 16, 2013 - 3:15pm Addthis Diagram of an oil boiler. New tanks are generally double-wall or have a spill container built underneath to reduce the chances of an oil spill. Typically, the tank drip pan shown here is required only for single-wall tanks and would extend the full width of the tank. | Photo courtesy State of Massachusetts. Diagram of an oil boiler. New tanks are generally double-wall or have a spill container built underneath to reduce the chances of an oil spill. Typically, the tank drip pan shown here is required only for single-wall tanks and would extend the full width of the tank. | Photo courtesy State of Massachusetts. What does this mean for me? If you have an oil furnace or boiler, you can now burn oil blended

8

Oil-Fired Boilers and Furnaces | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Oil-Fired Boilers and Furnaces Oil-Fired Boilers and Furnaces Oil-Fired Boilers and Furnaces May 16, 2013 - 3:15pm Addthis Diagram of an oil boiler. New tanks are generally double-wall or have a spill container built underneath to reduce the chances of an oil spill. Typically, the tank drip pan shown here is required only for single-wall tanks and would extend the full width of the tank. | Photo courtesy State of Massachusetts. Diagram of an oil boiler. New tanks are generally double-wall or have a spill container built underneath to reduce the chances of an oil spill. Typically, the tank drip pan shown here is required only for single-wall tanks and would extend the full width of the tank. | Photo courtesy State of Massachusetts. What does this mean for me? If you have an oil furnace or boiler, you can now burn oil blended

9

Furnace and Boiler Basics | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

either hot water or steam for heating. Furnaces Furnaces are the most common heating systems used in homes in the United States. They can be all electric, gas-fired (including...

10

Biomass Boiler and Furnace Emissions and Safety Regulations in the  

Open Energy Info (EERE)

Biomass Boiler and Furnace Emissions and Safety Regulations in the Biomass Boiler and Furnace Emissions and Safety Regulations in the Northeast States Jump to: navigation, search Tool Summary Name: Biomass Boiler and Furnace Emissions and Safety Regulations in the Northeast States Agency/Company /Organization: CONEG Policy Research Center Inc. Partner: Massachusetts Department of Energy Resources, Rick Handley and Associates, Northeast States for Coordinated Air Use Management (NESCAUM) Sector: Energy Focus Area: Biomass, - Biomass Combustion, - Biomass Gasification, - Biomass Pyrolysis, - Biofuels, Economic Development Phase: Determine Baseline, Evaluate Options, Develop Goals Resource Type: Guide/manual User Interface: Other Website: www.mass.gov/Eoeea/docs/doer/renewables/biomass/DOER%20Biomass%20Emiss Country: United States

11

Modeling energy consumption of residential furnaces and boilers in U.S. homes  

SciTech Connect (OSTI)

In 2001, DOE initiated a rulemaking process to consider whether to amend the existing energy efficiency standards for furnaces and boilers. A key factor in DOE's consideration of new standards is their cost-effectiveness to consumers. Determining cost-effectiveness requires an appropriate comparison of the additional first cost of energy efficiency design options with the savings in operating costs. This report describes calculation of equipment energy consumption (fuel and electricity) based on estimated conditions in a sample of homes that are representative of expected furnace and boiler installations. To represent actual houses with furnaces and boilers in the United States, we used a set of houses from the Residential Energy Consumption Survey of 1997 conducted by the Energy Information Administration. Our calculation methodology estimates the energy consumption of alternative (more-efficient) furnaces, if they were to be used in each house in place of the existing equipment. We developed the method of calculation described in this report for non-weatherized gas furnaces. We generalized the energy consumption calculation for this product class to the other furnace product classes. Fuel consumption calculations for boilers are similar to those for the other furnace product classes. The electricity calculations for boilers are simpler than for furnaces, because boilers do not provide thermal distribution for space cooling as furnaces often do.

Lutz, James; Dunham-Whitehead, Camilla; Lekov, Alex; McMahon, James

2004-02-01T23:59:59.000Z

12

Heat Transfer Coefficient Distribution in the Furnace of a 300MWe CFB Boiler  

Science Journals Connector (OSTI)

Properly understanding and calculating the distributions of heat flux and heat transfer coefficient (?) in the furnace is important in designing a circulating fluidized bed (CFB) boiler, especially with supercrit...

P. Zhang; J. F. Lu; H. R. Yang; J. S. Zhang…

2010-01-01T23:59:59.000Z

13

Towards a reliable and efficient furnace simulation tool for coal fired utility boilers  

Science Journals Connector (OSTI)

A validation exercise is presented with the objective of demonstrating that using a mature furnace simulation tool on high end supercomputers enables the reliable prediction of coal-fired utility boiler perfor...

Benedetto Risio; Uwe Schnell…

1999-01-01T23:59:59.000Z

14

Residential Bulk-Fed Wood-Pellet Central Boilers and Furnace Rebate Program  

Broader source: Energy.gov (indexed) [DOE]

Residential Bulk-Fed Wood-Pellet Central Boilers and Furnace Rebate Residential Bulk-Fed Wood-Pellet Central Boilers and Furnace Rebate Program Residential Bulk-Fed Wood-Pellet Central Boilers and Furnace Rebate Program < Back Eligibility Multi-Family Residential Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heating Maximum Rebate $6,000 Program Info Funding Source New Hampshire Renewable Energy Fund (FY 2013) Start Date 04/14/2010 Expiration Date When progr State New Hampshire Program Type State Rebate Program Rebate Amount 30% Provider New Hampshire Public Utilities Commission The New Hampshire Public Utilities Commission (PUC) is offering rebates of 30% of the installed cost of qualifying new residential bulk-fed, wood-pellet central heating boilers or furnaces. The maximum rebate is $6,000. To qualify, systems must (1) become operational on or after May 1,

15

Development of the Household Sample for Furnace and Boiler Life-Cycle Cost  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Development of the Household Sample for Furnace and Boiler Life-Cycle Cost Development of the Household Sample for Furnace and Boiler Life-Cycle Cost Analysis Title Development of the Household Sample for Furnace and Boiler Life-Cycle Cost Analysis Publication Type Report LBNL Report Number LBNL-55088 Year of Publication 2005 Authors Whitehead, Camilla Dunham, Victor H. Franco, Alexander B. Lekov, and James D. Lutz Document Number LBNL-55088 Pagination 22 Date Published May 31 Publisher Lawrence Berkeley National Laboratory City Berkeley Abstract Residential household space heating energy use comprises close to half of all residential energy consumption. Currently, average space heating use by household is 43.9 Mbtu for a year. An average, however, does not reflect regional variation in heating practices, energy costs, or fuel type. Indeed, a national average does not capture regional or consumer group cost impacts from changing efficiency levels of heating equipment. The US Department of Energy sets energy standards for residential appliances in, what is called, a rulemaking process. The residential furnace and boiler efficiency rulemaking process investigates the costs and benefits of possible updates to the current minimum efficiency regulations. Lawrence Berkeley National Laboratory (LBNL) selected the sample used in the residential furnace and boiler efficiency rulemaking from publically available data representing United States residences. The sample represents 107 million households in the country. The data sample provides the household energy consumption and energy price inputs to the life-cycle cost analysis segment of the furnace and boiler rulemaking. This paper describes the choice of criteria to select the sample of houses used in the rulemaking process. The process of data extraction is detailed in the appendices and is easily duplicated.The life-cycle cost is calculated in two ways with a household marginal energy price and a national average energy price. The LCC results show that using an national average energy price produces higher LCC savings but does not reflect regional differences in energy price.

16

Condensing economizers for small coal-fired boilers and furnaces  

SciTech Connect (OSTI)

Condensing economizers increase the thermal efficiency of boilers by recovering sensible and latent heat from exhaust gas. These economizers are currently being used commercially for this purpose in a wide range of applications. Performance is dependent upon application-specific factors affecting the utility of recovered heat. With the addition of a condensing economizer boiler efficiency improvements up to 10% are possible. Condensing economizers can also capture flue gas particulates. In this work, the potential use of condensing economizers for both efficiency improvement and control of particulate emissions from small, coal water slurry-fired boilers was evaluated. Analysis was done to predict heat transfer and particulate capture by mechanisms including: inertial impaction, interception, diffusion, thermophoretic forces, and condensation growth. Shell-and-tube geometries were considered with flue gas on the outside of Teflon-covered tubes. Experimental studies were done with both air- and water-cooled economizers refit to a small boiler. Two experimental arrangements were used including oil-firing with injection of flyash upstream of the economizer and direct coal water slurry firing. Firing rates ranged from 27 to 82 kW (92,000 to 280,000 Btu/hr). Inertial impaction was found to be the most important particulate capture mechanism and removal efficiencies to 95% were achieved. With the addition of water sprays directly on the first row of tubes, removal efficiencies increased to 98%. Use of these sprays adversely affects heat recovery. Primary benefits of the sprays are seen to be the addition of small impaction sites and future design improvements are suggested in which such small impactors are permanently added to the highest velocity regions of the economizer. Predicted effects of these added impactors on particulate removal and pressure drop are presented.

Butcher, T.A.; Litzke, W.

1994-01-01T23:59:59.000Z

17

Modeling Energy Consumption of Residential Furnaces and Boilers in U.S. Homes  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

24 24 Modeling Energy Consumption of Residential Furnaces and Boilers in U.S. Homes James Lutz, Camilla Dunham-Whitehead, Alex Lekov, and James McMahon Energy Analysis Department Environmental Energy Technologies Division Ernest Orlando Lawrence Berkeley National Laboratory University of California Berkeley, CA 94720 February 2004 This work was supported by the Office of Building Technologies and Community Systems of the U.S. Department of Energy, under Contract No. DE-AC03-76SF00098. ABSTRACT In 2001, DOE initiated a rulemaking process to consider whether to amend the existing energy efficiency standards for furnaces and boilers. A key factor in DOE's consideration of new standards is their cost-effectiveness to consumers. Determining cost-effectiveness requires an

18

2015-02-13 Issuance: Test Procedure for Furnaces and Boilers; Notice of Proposed Rulemaking  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Register notice of proposed rulemaking regarding test procedures for furnaces and boilers, as issued by the Deputy Assistant Secretary for Energy Efficiency on February 13, 2015. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

19

Experimental Investigation of Hydrogen Chloride Bonding with Calcium Hydroxide in the Furnace of a Stoker-Fired Boiler  

Science Journals Connector (OSTI)

The paper presents the results of experimental technical investigations to limit the mobility of chlorine released in the form of hydrogen chloride from the fuel in a stoker-fired boiler furnace. In the combustion process, hydrated lime was used as the ...

S?awomir Poskrobko; Jan ?ach; Danuta Król

2010-03-04T23:59:59.000Z

20

Furnace and Heat Recovery Area Design and Analysis for Conceptual Design of Oxygen-Based PC Boiler  

SciTech Connect (OSTI)

The objective of the furnace and heat recovery area design and analysis task of the Conceptual Design of Oxygen-Based PC Boiler study is to optimize the location and design of the furnace, burners, over-fire gas ports, and internal radiant surfaces. The furnace and heat recovery area were designed and analyzed using the FW-FIRE and HEATEX computer programs. The furnace is designed with opposed wall-firing burners and over-fire air ports. Water is circulated in the furnace by natural circulation to the waterwalls and divisional wall panels. Compared to the air-fired furnace, the oxygen-fired furnace requires only 65% of the surface area and 45% of the volume. Two oxygen-fired designs were simulated: (1) without over-fire air and (2) with 20% over-fire air. The maximum wall heat flux in the oxygen-fired furnace is more than double that of the air-fired furnace due to the higher flame temperature and higher H{sub 2}O and CO{sub 2} concentrations. The coal burnout for the oxygen-fired case is 100% due to a 500 F higher furnace temperature and higher concentration of O{sub 2}. Because of the higher furnace wall temperature of the oxygen-fired case compared to the air-fired case, furnace water wall material was upgraded from carbon steel to T91. The total heat transfer surface required in the oxygen-fired heat recovery area (HRA) is 25% less than the air-fired HRA due to more heat being absorbed in the oxygen-fired furnace and the greater molecular weight of the oxygen-fired flue gas. The HRA tube materials and wall thickness are practically the same for the air-fired and oxygen-fired design since the flue gas and water/steam temperature profiles encountered by the heat transfer banks are very similar.

Andrew Seltzer

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

List of Furnaces Incentives | Open Energy Information  

Open Energy Info (EERE)

Furnaces Incentives Furnaces Incentives Jump to: navigation, search The following contains the list of 688 Furnaces Incentives. CSV (rows 1-500) CSV (rows 501-688) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active AEP (Central and North) - CitySmart Program (Texas) Utility Rebate Program Texas Commercial Industrial Institutional Local Government Schools Boilers Central Air conditioners Chillers Comprehensive Measures/Whole Building Custom/Others pending approval Energy Mgmt. Systems/Building Controls Furnaces Heat pumps Lighting Lighting Controls/Sensors Motor VFDs Motors Roofs Windows Yes AEP (Central, North and SWEPCO) - Commercial Solutions Program (Texas) Utility Rebate Program Texas Commercial Industrial Institutional Local Government Nonprofit

22

List of Boilers Incentives | Open Energy Information  

Open Energy Info (EERE)

Boilers Incentives Boilers Incentives Jump to: navigation, search The following contains the list of 550 Boilers Incentives. CSV (rows 1-500) CSV (rows 501-550) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active AEP (Central and North) - CitySmart Program (Texas) Utility Rebate Program Texas Commercial Industrial Institutional Local Government Schools Boilers Central Air conditioners Chillers Comprehensive Measures/Whole Building Custom/Others pending approval Energy Mgmt. Systems/Building Controls Furnaces Heat pumps Lighting Lighting Controls/Sensors Motor VFDs Motors Roofs Windows Yes AEP (Central, North and SWEPCO) - Commercial Solutions Program (Texas) Utility Rebate Program Texas Commercial Industrial Institutional Local Government Nonprofit Schools

23

Experimental Study on Co-Firing of Syngas as a Reburn/Alternative Fuel in a Commercial Water-Tube Boiler and a Pilot-Scale Vertical Furnace  

Science Journals Connector (OSTI)

The second was a vertical furnace with 4 heavy oil burners, for various heat replacements by syngas cofiring at various heating values. ... The cleaned syngas is then introduced to the host boiler through a gas burner or nozzles. ... The combustible species in the mixed gas are completely burnt-out by overfire air in the burn-out zone. ...

Won Yang; Dong Jin Yang; Sin Young Choi; Jong Soo Kim

2011-05-17T23:59:59.000Z

24

CONDENSING ECONOMIZERS FOR SMALL COAL-FIRED BOILERS AND FURNACES PROJECT REPORT - JANUARY 1994  

SciTech Connect (OSTI)

Condensing economizers increase the thermal efficiency of boilers by recovering sensible and latent heat from exhaust gas. These economizers are currently being used commercially for this purpose in a wide range of applications. Performance is dependent upon application-specific factors affecting the utility of recovered heat. With the addition of a condensing economizer boiler efficiency improvements up to 10% are possible. Condensing economizers can also capture flue gas particulates. In this work, the potential use of condensing economizers for both efficiency improvement and control of particulate emissions from small, coal water slurry-fired boilers was evaluated. Analysis was done to predict heat transfer and particulate capture by mechanisms including: inertial impaction, interception, diffusion, thermophoretic forces, and condensation growth. Shell-and-tube geometries were considered with flue gas on the outside of Teflon-covered tubes. Experimental studies were done with both air- and water-cooled economizers refit to a small boiler. Two experimental arrangements were used including oil-firing with injection of flyash upstream of the economizer and direct coal water slurry firing. Firing rates ranged from 27 to 82 kW (92,000 to 280,000 Btu/hr). Inertial impaction was found to be the most important particulate capture mechanism and removal efficiencies to 95% were achieved. With the addition of water sprays directly on the first row of tubes, removal efficiencies increased to 98%. Use of these sprays adversely affects heat recovery. Primary benefits of the sprays are seen to be the addition of small impaction sites and future design improvements are suggested in which such small impacts are permanently added to the highest velocity regions of the economizer. Predicted effects of these added impactors on particulate removal and pressure drop are presented.

BUTCHER,T.A.

1994-01-04T23:59:59.000Z

25

Chapter 5, Residential Furnaces and Boilers Evaluation Protocol: The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures  

Broader source: Energy.gov (indexed) [DOE]

5: Residential 5: Residential Furnaces and Boilers Evaluation Protocol David Jacobson, Jacobson Energy Research Subcontract Report NREL/SR-7A30-53827 April 2013 The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures 5 - 1 Chapter 5 - Table of Contents 1 Measure Description .............................................................................................................. 2 2 Application Conditions of Protocol ....................................................................................... 3 3 Savings Calculations .............................................................................................................. 5 4 Measurement and Verification Plan ....................................................................................... 8

26

List of Windows Incentives | Open Energy Information  

Open Energy Info (EERE)

Windows Incentives Windows Incentives Jump to: navigation, search The following contains the list of 604 Windows Incentives. CSV (rows 1-500) CSV (rows 501-604) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active AEP (Central and North) - CitySmart Program (Texas) Utility Rebate Program Texas Commercial Industrial Institutional Local Government Schools Boilers Central Air conditioners Chillers Comprehensive Measures/Whole Building Custom/Others pending approval Energy Mgmt. Systems/Building Controls Furnaces Heat pumps Lighting Lighting Controls/Sensors Motor VFDs Motors Roofs Windows Yes AEP (Central, North and SWEPCO) - Commercial Solutions Program (Texas) Utility Rebate Program Texas Commercial Industrial Institutional Local Government Nonprofit Schools

27

Fate of Fuel Nitrogen in the Furnace of an Industrial Bubbling Fluidized Bed Boiler during Combustion of Biomass Fuel Mixtures  

Science Journals Connector (OSTI)

Co-firing biomass with challenging fuels, such as sludge, demolition wood, and solid recovered fuel (SRF), has become an attractive possibility to improve the economy of power production and to reduce the amount of landfill. ... Therefore, the fuel was extremely wet, with a dry solids content below 50 wt %. ... Thus, CS could reduce NOx effectively in devices where other techniques fails, e.g., in kraft recovery boilers, fluidized bed combustors, low-grade fuel combustors, small and domestic boilers, and fast engines. ...

Emil Vainio; Anders Brink; Mikko Hupa; Hannu Vesala; Tuula Kajolinna

2011-11-28T23:59:59.000Z

28

Evaluation of the 3D-furnace simulation code AIOLOS by comparing CFD predictions of gas compositions with in-furnace measurements in a 210MW coal-fired utility boiler  

Science Journals Connector (OSTI)

The furnace of a pulverised coal-fired utility boiler with a thermal output of 210MW, with dimensions of 8m x 8m x 29m and 12 burners located on three levels, is considered. Coal combustion is described by a five-step-reaction scheme. The model covers two heterogeneous reactions for pyrolysis and char combustion and three gas phase reactions for the oxidation of volatile matter. A standard k, ?-model is used for the description of turbulence. The interaction of turbulence and chemistry is modelled using the Eddy Dissipation Concept (EDC). The transport equations for mass, momentum, enthalpy and species are formulated in general curvilinear co-ordinates enabling an accurate treatment of boundaries and a very good control over the distribution of the grid lines. The discretisation is based on a non-staggered finite-volume approach and the coupling of velocities and pressure is achieved by the SIMPLEC method. Numerical diffusion is minimised by the use of the higher-order discretisation scheme MLU. The accuracy of the predictions is demonstrated by comparing the computational results with in-furnace measurements of carbon monoxide, carbon dioxide and oxygen concentrations and of temperatures.

Hermann Knaus; Uwe Schnell; Klaus R.G. Hein

2001-01-01T23:59:59.000Z

29

E-Print Network 3.0 - automatic wood furnaces Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

bagasse. 3. The total cost of the boiler island including stoker, furnace, boiler, economizer... , feeders and bins for handling bark and wood, while experience in dealing with...

30

BOILERS, BOILER FUEL AND BOILER EFFICIENCY  

E-Print Network [OSTI]

This paper describes the modern boilers in the South African sugar industry. A new equation for the calculation of the net calorific value (NCV) of bagasse is suggested and a distinction is made between boiler design efficiency and boiler operation efficiency. Methods to calculate fuel calorific values and boiler efficiencies from first principles are presented.

A Wienese

31

Influence of combustion parameters on NOx production in an industrial boiler  

E-Print Network [OSTI]

Influence of combustion parameters on NOx production in an industrial boiler M.A. Habib a,*, M pollution using a model furnace of an industrial boiler utilizing fuel gas. The importance of this problem is mainly due to its relation to the pollutants produced by large boiler furnaces used widely in thermal

Aldajani, Mansour A.

32

Exergy Analysis and Energy-Saving Evaluation of the Fuming Furnace Device in SKS Lead Smelting System  

Science Journals Connector (OSTI)

To highlight the energy-saving feature of the integral device of fuming furnace and waste heat boiler(referred to as ¡°the fuming furnace device¡± for short) in the Shuikoushan lead smelting system (hereinafter referred to as SKS system) and to ... Keywords: SKS lead smelting, fuming furnace, waste heat boiler, exergy analysis, energy-saving

Jiang Aihua; Mei Chi; Shi Zhangming; Wang Hongcai; Yu Huang; Zhu Xiaojun

2011-02-01T23:59:59.000Z

33

Distribution of bed material in a Horizontal Circulating Fluidised Bed boiler.  

E-Print Network [OSTI]

??A conventional circulating fluidised bed (CFB) boiler has a limitation due to the height of the furnace, when implemented in smaller industrial facilities. The design… (more)

Ekvall, Thomas

2011-01-01T23:59:59.000Z

34

Parametric study of a firetube boiler performance  

SciTech Connect (OSTI)

Critical areas in the design of commercial and industrial firetube boilers are burner and furnace configuration, as is the resultant heat transfer from the furnace wall to the water under the various conditions. Furthermore, performance of industrial and commercial boilers is mainly dependent upon their material and geometrical dimensions. In order to investigate boiler performance globally, a relatively simple model which can be processed in a personal computer (PC) is proposed. In this paper, the effects of thermo-physical parameters on the energy and exergy performance of a firetube boiler are studied by using a simple model for the combustion product gas behavior through the boiler passes. For each steady-state condition, the boiler performance is investigated by parametrically changing the degree of inception of nucleate boiling, the tube wall emissivity, the saturation steam pressure, and the fraction of flue gas recirculation (FGR, utilized for NO{sub x} emissions reduction). Results for a set of parameters such as those considered in this work may be used in future firetube boiler design to improve performance and reduce manufacturing costs.

Park, H. [Marquette Univ., Milwaukee, WI (United States). Dept. of Mechanical and Industrial Engineering; Valentino, M.W. [Cleaver-Brooks, Milwaukee, WI (United States)

1995-12-31T23:59:59.000Z

35

DOE Increases Energy Efficiency Standards for Residential Furnaces &  

Broader source: Energy.gov (indexed) [DOE]

DOE Increases Energy Efficiency Standards for Residential Furnaces DOE Increases Energy Efficiency Standards for Residential Furnaces & Boilers DOE Increases Energy Efficiency Standards for Residential Furnaces & Boilers November 19, 2007 - 4:31pm Addthis WASHINGTON, DC - The U.S. Department of Energy (DOE) today announced it has increased the energy efficiency standards for residential furnaces and boilers, underscoring the Department's commitment to meet its aggressive, five-year appliance standard rulemaking schedule, as established in its January 31, 2006, Report to Congress. The Department estimates that these amended standards, which become effective in 2015, will save the equivalent of the total amount of energy consumed by 2.5 million American households in one year, or approximately 0.25 quadrillion (10x15) British thermal

36

DOE Increases Energy Efficiency Standards for Residential Furnaces &  

Broader source: Energy.gov (indexed) [DOE]

DOE Increases Energy Efficiency Standards for Residential Furnaces DOE Increases Energy Efficiency Standards for Residential Furnaces & Boilers DOE Increases Energy Efficiency Standards for Residential Furnaces & Boilers November 19, 2007 - 4:31pm Addthis WASHINGTON, DC - The U.S. Department of Energy (DOE) today announced it has increased the energy efficiency standards for residential furnaces and boilers, underscoring the Department's commitment to meet its aggressive, five-year appliance standard rulemaking schedule, as established in its January 31, 2006, Report to Congress. The Department estimates that these amended standards, which become effective in 2015, will save the equivalent of the total amount of energy consumed by 2.5 million American households in one year, or approximately 0.25 quadrillion (10x15) British thermal

37

Stress-Assisted Corrosion in Boiler Tubes  

SciTech Connect (OSTI)

A number of industrial boilers, including in the pulp and paper industry, needed to replace their lower furnace tubes or decommission many recovery boilers due to stress-assisted corrosion (SAC) on the waterside of boiler tubes. More than half of the power and recovery boilers that have been inspected reveal SAC damage, which portends significant energy and economic impacts. The goal of this project was to clarify the mechanism of stress-assisted corrosion (SAC) of boiler tubes for the purpose of determining key parameters in its mitigation and control. To accomplish this in-situ strain measurements on boiler tubes were made. Boiler water environment was simulated in the laboratory and effects of water chemistry on SAC initiation and growth were evaluated in terms of industrial operations. Results from this project have shown that the dissolved oxygen is single most important factor in SAC initiation on carbon steel samples. Control of dissolved oxygen can be used to mitigate SAC in industrial boilers. Results have also shown that sharp corrosion fatigue and bulbous SAC cracks have similar mechanism but the morphology is different due to availability of oxygen during boiler shutdown conditions. Results are described in the final technical report.

Preet M Singh; Steven J Pawel

2006-05-27T23:59:59.000Z

38

Tube furnace  

DOE Patents [OSTI]

A vermiculite insulated tube furnace is heated by a helically-wound resistance wire positioned within a helical groove on the surface of a ceramic cylinder, that in turn is surroundingly disposed about a doubly slotted stainless steel cylindrical liner. For uniform heating, the pitch of the helix is of shorter length over the two end portions of the ceramic cylinder. The furnace is of large volume, provides uniform temperature, offers an extremely precise programmed heating capability, features very rapid cool-down, and has a modest electrical power requirement.

Foster, Kenneth G. (Livermore, CA); Frohwein, Eugene J. (San Ramon, CA); Taylor, Robert W. (Livermore, CA); Bowen, David W. (Livermore, CA)

1991-01-01T23:59:59.000Z

39

Furnace assembly  

DOE Patents [OSTI]

A method of and apparatus for heating test specimens to desired elevated temperatures for irradiation by a high energy neutron source. A furnace assembly is provided for heating two separate groups of specimens to substantially different, elevated, isothermal temperatures in a high vacuum environment while positioning the two specimen groups symmetrically at equivalent neutron irradiating positions.

Panayotou, Nicholas F. (Kennewick, WA); Green, Donald R. (Richland, WA); Price, Larry S. (Pittsburg, CA)

1985-01-01T23:59:59.000Z

40

Stress Assisted Corrosion in Boiler Tubes - Failure Analysis  

SciTech Connect (OSTI)

Stress assisted corrosion (SAC) of carbon steel boiler tubes is one of the major causes of waterside failure in industrial boilers. SAC is a major concern for kraft recovery boilers in the pulp and paper industry as any water leak into the furnace can cause a smelt-water explosion in the boiler. Failed carbon steel boiler tubes from different kraft recovery boilers were examined to understand the role of carbon steel microstructure on crack initiation and SAC crack morphology. A number of carbon steel tubes showed a deep decarburized layer on the inner surface (water-touched) and also an unusually large grain size at the inner tube surface. SAC cracks were found to initiate in these areas with large-graineddecarburized microstructure. Tubes without such microstructure were also found to have SAC cracks. It was found that the decarburization and large grained microstructure may facilitate initiation and growth but is not necessary for SAC of carbon steel boiler tubes.

Singh, Preet M [Georgia Institute of Technology; Pawel, Steven J [ORNL; Yang, Dong [Georgia Institute of Technology; Mahmood, Jamshad [Georgia Institute of Technology

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Model-free adaptive control of supercritical circulating fluidized-bed boilers  

DOE Patents [OSTI]

A novel 3-Input-3-Output (3.times.3) Fuel-Air Ratio Model-Free Adaptive (MFA) controller is introduced, which can effectively control key process variables including Bed Temperature, Excess O2, and Furnace Negative Pressure of combustion processes of advanced boilers. A novel 7-input-7-output (7.times.7) MFA control system is also described for controlling a combined 3-Input-3-Output (3.times.3) process of Boiler-Turbine-Generator (BTG) units and a 5.times.5 CFB combustion process of advanced boilers. Those boilers include Circulating Fluidized-Bed (CFB) Boilers and Once-Through Supercritical Circulating Fluidized-Bed (OTSC CFB) Boilers.

Cheng, George Shu-Xing; Mulkey, Steven L

2014-12-16T23:59:59.000Z

42

Modelling and simulating fire tube boiler performance  

E-Print Network [OSTI]

A model for a flue gas boiler covering the flue gas and the water-/steam side has been formulated. The model has been formulated as a number of sub models that are merged into an overall model for the complete boiler. Sub models have been defined for the furnace, the convection zone (split in 2: a zone submerged in water and a zone covered by steam), a model for the material in the boiler (the steel) and 2 models for resp. the water/steam zone (the boiling) and the steam. The dynamic model has been developed as a number of Differential-Algebraic-Equation system (DAE). Subsequently MatLab/Simulink has been applied for carrying out the simulations. To be able to verify the simulated results an experiments has been carried out on a full scale boiler plant.

Kim Sørensen; Claus M. S. Karstensen; Thomas Condra; Niels Houbak

43

Reduce Air Infiltration in Furnaces (English/Chinese) (Fact Sheet)  

SciTech Connect (OSTI)

Chinese translation of the Reduce Air Infiltration in Furnaces fact sheet. Provides suggestions on how to improve furnace energy efficiency. Fuel-fired furnaces discharge combustion products through a stack or a chimney. Hot furnace gases are less dense and more buoyant than ambient air, so they rise, creating a differential pressure between the top and the bottom of the furnace. This differential, known as thermal head, is the source of a natural draft or negative pressure in furnaces and boilers. A well-designed furnace (or boiler) is built to avoid air leakage into the furnace or leakage of flue gases from the furnace to the ambient. However, with time, most furnaces develop cracks or openings around doors, joints, and hearth seals. These openings (leaks) usually appear small compared with the overall dimensions of the furnace, so they are often ignored. The negative pressure created by the natural draft (or use of an induced-draft fan) in a furnace draws cold air through the openings (leaks) and into the furnace. The cold air becomes heated to the furnace exhaust gas temperature and then exits through the flue system, wasting valuable fuel. It might also cause excessive oxidation of metals or other materials in the furnaces. The heat loss due to cold air leakage resulting from the natural draft can be estimated if you know four major parameters: (1) The furnace or flue gas temperature; (2) The vertical distance H between the opening (leak) and the point where the exhaust gases leave the furnace and its flue system (if the leak is along a vertical surface, H will be an average value); (3) The area of the leak, in square inches; and (4) The amount of operating time the furnace spends at negative pressure. Secondary parameters that affect the amount of air leakage include these: (1) The furnace firing rate; (2) The flue gas velocity through the stack or the stack cross-section area; (3) The burner operating conditions (e.g., excess air, combustion air temperature, and so on). For furnaces or boilers using an induced-draft (ID) fan, the furnace negative pressure depends on the fan performance and frictional losses between the fan inlet and the point of air leakage. In most cases, it would be necessary to measure or estimate negative pressure at the opening. The amount of air leakage, the heat lost in flue gases, and their effects on increased furnace or boiler fuel consumption can be calculated by using the equations and graphs given in Industrial Furnaces (see W. Trinks et al., below). Note that the actual heat input required to compensate for the heat loss in flue gases due to air leakage would be greater than the heat contained in the air leakage because of the effect of available heat in the furnace. For a high-temperature furnace that is not maintained properly, the fuel consumption increase due to air leakage can be as high as 10% of the fuel input.

Not Available

2011-10-01T23:59:59.000Z

44

Economics of residential gas furnaces and water heaters in US new construction market  

E-Print Network [OSTI]

2001 Residential Energy Consumption Survey (RECS 2001; USenergy consumption of residential furnaces and boilers in U.S.US Department of Energy (2001). Residential energy consump- tion survey: household energy consumption

Lekov, Alex B.; Franco, Victor H.; Wong-Parodi, Gabrielle; McMahon, James E.; Chan, Peter

2010-01-01T23:59:59.000Z

45

Reburning Characteristics of Residual Carbon in Fly Ash from CFB Boilers  

Science Journals Connector (OSTI)

The content of residual carbon in fly ash of CFB boilers is a litter high especially when ... of fly ash through collection, recirculation in CFB furnace or external combustor is a possibly ... ash and correspond...

S. H. Zhang; H. H. Luo; H. P. Chen…

2010-01-01T23:59:59.000Z

46

Furnaces | Open Energy Information  

Open Energy Info (EERE)

TODO: Add description List of Furnaces Incentives Retrieved from "http:en.openei.orgwindex.php?titleFurnaces&oldid267167" Category: Articles with outstanding TODO tasks...

47

Development of Computation Capabilities to Predict the Corrosion Wastage of Boiler Tubes in Advanced Combustion Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Computation Capabilities Computation Capabilities to Predict the Corrosion Wastage of Boiler Tubes in Advanced Combustion Systems Background Staged combustion is a method of reducing nitrogen oxide (NO x ) emissions in boilers by controlling the combustion mixture of air and fuel. Its process conditions are particularly corrosive to lower furnace walls. Superheaters and/or reheaters are often employed in the upper furnace to reuse hot combustion gasses to further raise the

48

Boilers | Open Energy Information  

Open Energy Info (EERE)

search TODO: Add description List of Boilers Incentives Retrieved from "http:en.openei.orgwindex.php?titleBoilers&oldid267147" Category: Articles with outstanding TODO tasks...

49

Reducing NOx in Fired Heaters and Boilers  

E-Print Network [OSTI]

-6, 2000 Reducing NOx in Fired Heaters Air Pollution Control and Boilers Keeping the environment clean Presented by Ashutosh Garg Furnace Improvements Low cost solutions for fired heaters Trace compounds ? Nitric oxides ? Carbon monoxide ? Sulfur... it is essential to estimate accurately baseline NOx emissions. ? This will establish each units current compliance status. ? Emissions ? Current excess air level ? Carbon monoxide ? Combustibles ? NOx corrected to 3% 02 314 ESL-IE-00-04-46 Proceedings...

Garg, A.

50

Spectroscopy of infrared emission characteristics of thermal power plant boiler coal ash deposits  

Science Journals Connector (OSTI)

Thermal radiation characteristics of ash deposits on a coal combustion boiler of an electric power plant are investigated. Normal emittance spectra in 2.5-25 µm wavelength region and total normal emittance are measured on four kinds of ash at 600-1100K ... Keywords: ash deposit, emittance, pulverized coal combustion boiler furnace, spectroscopic measurement, thermal radiation

Aleksandar Saljnikov; Darko Goricanec; Danijela Dobersek; Dorde Kozic

2007-05-01T23:59:59.000Z

51

202 IEEE TRANS.4CTIONS Oh'AUTOMATIC CONTROL, VOL. AC-18,NO. 3, J U K E 1973 Design and Analysis of Boiler-Turbine-Generator  

E-Print Network [OSTI]

of Boiler-Turbine-Generator Controls Using Optimal Linear Regulator Theory JOHN P. McDOKALD AND HARRY G of a nonlinear mathematical model of a drum-type, twin furnace, reheat boiler-turbine-generator (RBTG) system- tiveoperatingandcontrolstrategies for boiler-t.urbine- generator systems to meet different, system operating ob- jectives. Among

Kwatny, Harry G.

52

Old boilers to profitable use with local biofuels  

SciTech Connect (OSTI)

To convert an old plant is often an economically advantageous alternative for a new boiler. The most important sources of biomass in industrial countries are residues from forestry, industry and agriculture. Sludges and wastes from industry, communities and households also contain useful energy. Still in many places there are existing power plants which can be converted to burn biofuels with low investment costs. An efficient and proven way is to convert an existing boiler to fluidized bed combustion (FBC) or use atmospheric circulating fluidized bed biofuel gasification connected to an existing boiler. Modern Fluidized Bed Combustion and Gasification gives us a possibility to burn biomass, sludges and many kinds of wastes in an efficient way with low emissions. Fluidized bed technologies are divided into bubbling fluidized bed (BFB) and circulating fluidized bed (CFB) solutions. When making a boiler conversion to fluidized bed combustion, lower furnace of an existing boiler is converted and fuel receiving, handling and transportation system is installed. In many cases most of the existing boiler heating surfaces and a majority of the existing auxiliary equipment can be utilized. The circulating fluidized bed gasifier consists of the inside refractory-lined steel vessel, where fuel is gasified in a hot fluidized gas solid particle suspension. In the gasifier, the biofuels will be converted to combustible gas at atmospheric pressure at the temperature 800--900 C. The hot gas from the gasifier will be cooled down to 650--750 C in the air preheater. The hot gas is led directly to separate burners, which are located in the existing boiler furnace. The gas is burned in the boiler and replaces a part of the coal used in the boiler. Typical fuels for the FBC-boilers are wet fuels such as bark, wood waste, peat and sludges. These fuels normally contain 40--70% water.

Hankala, J.

1998-07-01T23:59:59.000Z

53

Fluid Bed Waste Heat Boiler Operating Experience in Dirty Gas Streams  

E-Print Network [OSTI]

from 13 to 15 million BTU per hour for fired boiler efficiencies of 80% to 70% respectively. The savings represents 85 to 90% of the energy entering the waste heat boiler. Equiva lent furnace efficiency increases from 25% to over 60% on high fire... Fired Boiler Efficiency 0.70 0.75 0.80 Energy Savings Furnace Efficiency Corresponding Peak Fuel Equivalent at High (1) . Savi ngs Fire on Melt 4453 kw (15.1x10 6 BTU/hr) 69% 4156 kw (14.1x10 6 BTU/hr) 66% 3896 kw (13.3x10 6 BTU/hr) 63% (1...

Kreeger, A. H.

54

Paired Straight Hearth Furnace  

Broader source: Energy.gov [DOE]

A coal based dri and molten metal process for long range replacement of blast furnaces and coke ovens

55

Heat treatment furnace  

DOE Patents [OSTI]

A furnace heats through both infrared radiation and convective air utilizing an infrared/purge gas design that enables improved temperature control to enable more uniform treatment of workpieces. The furnace utilizes lamps, the electrical end connections of which are located in an enclosure outside the furnace chamber, with the lamps extending into the furnace chamber through openings in the wall of the chamber. The enclosure is purged with gas, which gas flows from the enclosure into the furnace chamber via the openings in the wall of the chamber so that the gas flows above and around the lamps and is heated to form a convective mechanism in heating parts.

Seals, Roland D; Parrott, Jeffrey G; DeMint, Paul D; Finney, Kevin R; Blue, Charles T

2014-10-21T23:59:59.000Z

56

Postcombustion and its influences in 135 MWe CFB boilers  

SciTech Connect (OSTI)

In the cyclone of a circulating fluidized bed (CFB) boiler, a noticeable increment of flue gas temperature, caused by combustion of combustible gas and unburnt carbon content, is often found. Such phenomenon is defined as post combustion, and it could introduce overheating of reheated and superheated steam and extra heat loss of exhaust flue gas. In this paper, mathematical modeling and field measurements on post combustion in 135MWe commercial CFB boilers were conducted. A novel one-dimensional combustion model taking post combustion into account was developed. With this model, the overall combustion performance, including size distribution of various ashes, temperature profile, and carbon content profiles along the furnace height, heat release fraction in the cyclone and furnace were predicted. Field measurements were conducted by sampling gas and solid at different positions in the boiler under different loads. The measured data and corresponding model-calculated results were compared. Both prediction and field measurements showed post combustion introduced a temperature increment of flue gas in the cyclone of the 135MWe CFB boiler in the range of 20-50{sup o}C when a low-volatile bituminous coal was fired. Although it had little influence on ash size distribution, post combustion had a remarkable influence on the carbon content profile and temperature profile in the furnace. Moreover, it introduced about 4-7% heat release in the cyclone over the total heat release in the boiler. This fraction slightly increased with total air flow rate and boiler load. Model calculations were also conducted on other two 135MWe CFB boilers burning lignite and anthracite coal, respectively. The results confirmed that post combustion was sensitive to coal type and became more severe as the volatile content of the coal decreased. 15 refs., 11 figs., 4 tabs.

Shaohua Li; Hairui Yang; Hai Zhang; Qing Liu; Junfu Lu; Guangxi Yue [Tsinghua University, Beijing (China). Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Thermal Engineering

2009-09-15T23:59:59.000Z

57

Recovery Boiler Corrosion Chemistry  

E-Print Network [OSTI]

11/13/2014 1 Recovery Boiler Corrosion Chemistry Sandy Sharp and Honghi Tran Symposium on Corrosion of a recovery boiler each cause their own forms of corrosion and cracking Understanding the origin of the corrosive conditions enables us to operate a boiler so as to minimize corrosion and cracking select

Das, Suman

58

Laboratory Induction Furnaces  

Science Journals Connector (OSTI)

... supplied at 10,000 volts by a suitable transformer. It is controlled either by a contactor or by push buttons on the furnace table.

1930-07-19T23:59:59.000Z

59

Window Properties  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Window Properties: measurements, simulations and ratings Window Properties: measurements, simulations and ratings Determining the thermal and optical performance of window systems is essential to researchers striving to develop improved products and to window manufacturers who need to demonstrate the energy performance of their products to architects, engineers, builders, and the general public. LBNL is involved in basic research in this field, in developing software and test procedures to analyze and quantify window heat transfer and optics, and in developing standards and rating procedures. Infrared Laboratory experiments provide surface temperature maps of window products. A companion Traversing System measures air velocity and air temperatures near the surface of test specimens. The MoWiTT facility provides accurate measurements of the heat flow through complete window systems subjected to real weather conditions. MoWiTT results have been used to validate the performance of emerging technologies and research prototypes as well as to validate thermal performance models.

60

Slag monitoring system for combustion chambers of steam boilers  

SciTech Connect (OSTI)

The computer-based boiler performance system presented in this article has been developed to provide a direct and quantitative assessment of furnace and convective surface cleanliness. Temperature, pressure, and flow measurements and gas analysis data are used to perform heat transfer analysis in the boiler furnace and evaporator. Power boiler efficiency is calculated using an indirect method. The on-line calculation of the exit flue gas temperature in a combustion chamber allows for an on-line heat flow rate determination, which is transferred to the boiler evaporator. Based on the energy balance for the boiler evaporator, the superheated steam mass flow rate is calculated taking into the account water flow rate in attemperators. Comparing the calculated and the measured superheated steam mass flow rate, the effectiveness of the combustion chamber water walls is determined in an on-line mode. Soot-blower sequencing can be optimized based on actual cleaning requirements rather than on fixed time cycles contributing to lowering of the medium usage in soot blowers and increasing of the water-wall lifetime.

Taler, J.; Taler, D. [Cracow University of Technology, Krakow (Poland)

2009-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Recovery Act: ArcelorMittal USA Blast Furnace Gas Flare Capture  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) awarded a financial assistance grant under the American Recovery and Reinvestment Act of 2009 (Recovery Act) to ArcelorMittal USA, Inc. (ArcelorMittal) for a project to construct and operate a blast furnace gas recovery boiler and supporting infrastructure at ArcelorMittal’s Indiana Harbor Steel Mill in East Chicago, Indiana. Blast furnace gas (BFG) is a by-product of blast furnaces that is generated when iron ore is reduced with coke to create metallic iron. BFG has a very low heating value, about 1/10th the heating value of natural gas. BFG is commonly used as a boiler fuel; however, before installation of the gas recovery boiler, ArcelorMittal flared 22 percent of the blast furnace gas produced at the No. 7 Blast Furnace at Indiana Harbor. The project uses the previously flared BFG to power a new high efficiency boiler which produces 350,000 pounds of steam per hour. The steam produced is used to drive existing turbines to generate electricity and for other requirements at the facility. The goals of the project included job creation and preservation, reduced energy consumption, reduced energy costs, environmental improvement, and sustainability.

Seaman, John

2013-01-14T23:59:59.000Z

62

A cold model experimental study on the flow characteristics of bed material in a fluidized bed bottom ash cooler in a CFB boiler  

Science Journals Connector (OSTI)

A cold model experimental study on the flowing characteristics of bed material between a fluidized bed ash cooler and a furnace of CFB boiler were discussed in this paper. The research results showed that flowing...

Xiaofeng Lu; Yourong Li

2000-12-01T23:59:59.000Z

63

Recovery Boiler Modeling  

E-Print Network [OSTI]

, east, e, west, w, bot tom, b, and top, t, neighbors. The neighboring cou pling coefficients (an, a., .. , etc) express the magnitudes of the convection and diffusion which occur across the control volume boundaries. The variable b p represents... represents a model of one half of the recovery boiler. The boiler has three air levels. The North, South and East boundaries of the computational domain represent the water walls of the boiler. The West boundary represents a symmetry plane. It should...

Abdullah, Z.; Salcudean, M.; Nowak, P.

64

Oxy-Combustion Boiler Material Development  

SciTech Connect (OSTI)

Under U.S. Department of Energy Cooperative Agreement No. DE-NT0005262 Foster Wheeler North America Corp conducted a laboratory test program to determine the effect of oxy-combustion on boiler tube corrosion. In this program, CFD modeling was used to predict the gas compositions that will exist throughout and along the walls of air-fired and oxy-fired boilers operating with low to high sulfur coals. Test coupons of boiler tube materials were coated with deposits representative of those coals and exposed to the CFD predicted flue gases for up to 1000 hours. The tests were conducted in electric tube furnaces using oxy-combustion and air-fired flue gases synthesized from pressurized cylinders. Following exposure, the test coupons were evaluated to determine the total metal wastage experienced under air and oxy-combustions conditions and materials recommendations were made. Similar to air-fired operation, oxy-combustion corrosion rates were found to vary with the boiler material, test temperature, deposit composition, and gas composition. Despite this, comparison of air-fired and oxy-fired corrosion rates showed that oxy-firing rates were, for the most part, similar to, if not lower than those of air-firing; this finding applied to the seven furnace waterwall materials (wrought and weld overlay) and the ten superheater/reheater materials (wrought and weld overlay) that were tested. The results of the laboratory oxy-combustion tests, which are based on a maximum bulk flue gas SO{sub 2} level of 3200 ppmv (wet) / 4050 ppmv (dry), suggest that, from a corrosion standpoint, the materials used in conventional subcritical and supercritical, air-fired boilers should also be suitable for oxy-combustion retrofits. Although the laboratory test results are encouraging, they are only the first step of a material evaluation process and it is recommended that follow-on corrosion tests be conducted in coal-fired boilers operating under oxy-combustion to provide longer term (one to two year) data. The test program details and data are presented herein.

Michael Gagliano; Andrew Seltzer; Hans Agarwal; Archie Robertson; Lun Wang

2012-01-31T23:59:59.000Z

65

Oxy-Combustion Boiler Material Development  

SciTech Connect (OSTI)

Under U.S. Department of Energy Cooperative Agreement No. DE-NT0005262 Foster Wheeler North America Corp conducted a laboratory test program to determine the effect of oxy-combustion on boiler tube corrosion. In this program, CFD modeling was used to predict the gas compositions that will exist throughout and along the walls of air-fired and oxy-fired boilers operating with low to high sulfur coals. Test coupons of boiler tube materials were coated with deposits representative of those coals and exposed to the CFD predicted flue gases for up to 1000 hours. The tests were conducted in electric tube furnaces using oxy-combustion and air-fired flue gases synthesized from pressurized cylinders. Following exposure, the test coupons were evaluated to determine the total metal wastage experienced under air and oxy-combustions conditions and materials recommendations were made. Similar to air-fired operation, oxy-combustion corrosion rates were found to vary with the boiler material, test temperature, deposit composition, and gas composition. Despite this, comparison of air-fired and oxy-fired corrosion rates showed that oxy-firing rates were, for the most part, similar to, if not lower than those of air-firing; this finding applied to the seven furnace waterwall materials (wrought and weld overlay) and the ten superheater/reheater materials (wrought and weld overlay) that were tested. The results of the laboratory oxy-combustion tests, which are based on a maximum bulk flue gas SO2 level of 3200 ppmv (wet) / 4050 ppmv (dry), suggest that, from a corrosion standpoint, the materials used in conventional subcritical and supercritical, air-fired boilers should also be suitable for oxy-combustion retrofits. Although the laboratory test results are encouraging, they are only the first step of a material evaluation process and it is recommended that follow-on corrosion tests be conducted in coal-fired boilers operating under oxy-combustion to provide longer term (one to two year) data. The test program details and data are presented herein.

Gagliano, Michael; Seltzer, Andrew; Agarwal, Hans; Robertson, Archie; Wang, Lun

2012-01-31T23:59:59.000Z

66

Boilers and Fired Systems  

SciTech Connect (OSTI)

This chapter examines how energy is consumed, how energy is wasted, and opportunities for reducing energy consumption and costs in the operation of boilers.

Parker, Steven A.; Scollon, R. B.

2009-07-14T23:59:59.000Z

67

Advanced steel reheat furnace  

SciTech Connect (OSTI)

Energy and Environmental Research Corp. (EER) under a contract from the Department of Energy is pursuing the development and demonstration of an Advanced Steel Reheating Furnace. This paper reports the results of Phase 1, Research, which has evaluated an advanced furnace concept incorporating two proven and commercialized technologies previously applied to other high temperature combustion applications: EER`s gas reburn technology (GR) for post combustion NOx control; and Air Product`s oxy-fuel enrichment air (OEA) for improved flame heat transfer in the heating zones of the furnace. The combined technologies feature greater production throughput with associated furnace efficiency improvements; lowered NOx emissions; and better control over the furnace atmosphere, whether oxidizing or reducing, leading to better control over surface finish.

Moyeda, D.; Sheldon, M.; Koppang, R. [Energy and Environmental Research Corp., Irvine, CA (United States); Lanyi, M.; Li, X.; Eleazer, B. [Air Products and Chemicals, Inc., Allentown, PA (United States)

1997-10-01T23:59:59.000Z

68

NETL: IEP – Oxy-Combustion CO2 Emissions Control - Oxygen-Based PC Boiler  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

– Oxy-Combustion CO2 Emissions Control – Oxy-Combustion CO2 Emissions Control Oxygen-Based PC Boiler Project No.: FC26-04NT42207 & FC26-03NT41736 Spatial Comparison of an Air-Fired Furnace versus an Oxygen-Fired Furnace. Spatial Comparison of an Air-Fired Furnace versus an Oxygen-Fired Furnace. Foster Wheeler North America Corporation will conduct to two projects to improve carbon dioxide (CO2) capture technology by developing a conceptual pulverized coal-fired boiler system design using oxygen as the combustion medium. Using oxygen instead of air produces a flue gas with a high CO2 concentration, which will facilitate CO2 capture for subsequent sequestration. The first project will develop modeling simulations that will lead to a conceptual design that addresses costs, performance, and emissions, and

69

Combustion control in boilers. (Latest citations from the EI Compendex*plus database). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations concerning utility and industrial boiler combustion control systems and methods. Topics include methods to meet emission standards, energy savings, and safety. The use of microcomputers, mathematical models, algorithms, artificial intelligence, and fuzzy logic is considered. Citations on boilers and furnaces fueled by coal, oil, gas, refuse, and multiple fuels are included. (Contains a minimum of 128 citations and includes a subject term index and title list.)

Not Available

1994-11-01T23:59:59.000Z

70

Chapter 5, Residential Furnaces and Boilers Evaluation Protocol...  

Office of Environmental Management (EM)

primarily in single-family homes and multifamily buildings with individual heating systems for each dwelling unit. This protocol does not cover integrated heating and water...

71

Boiler tube failures in municipal waste-to-energy plants  

SciTech Connect (OSTI)

Waste-to-energy plants experienced increased boiler tube failures when the design changed from waste-heat boilers to radiant furnace waterwalls using superheat. Fireside attack by chlorine and sulfur compounds in refuse combustion products caused many forced outages in early European plants operating at high steam temperatures and pressures. Despite conservative steam conditions in the first US plants, failures occurred. As steam temperatures increased, corrosion problems multiplied. The problems have been alleviated by covering the waterwalls with either refractory or weld overlays of nickel-based alloys and using high nickel-chromium alloys for superheater tubes. Changes in furnace design to provide uniform combustion and avoid reducing conditions in the waterwall zone and to lower the gas temperature in the superheater also have helped minimize corrosion.

Krause, H.H.; Wright, I.G. [Battelle, Columbus, OH (United States)

1996-01-01T23:59:59.000Z

72

Trends in furnace control  

SciTech Connect (OSTI)

This paper relates Italimpianti's experiences over the past few years in the area of control of reheat furnaces for the steel industry. The focus is on the level 1 area; specifically on the use of PLC-based systems to perform both combustion control and mechanical/hydraulic control. Some topics to be discussed are: overview of reheat furnace control system requirements; PLC only control vs separate PLC and DCS systems; PLC hardware requirements; man machine interface (MMI) requirements; purge, light-on and safety logic; implementation of more sophisticated level 1 control algorithms; furnace temperature optimization: look up tables vs full thermal modeling; and recent trends including integrated PLC/DCS system.

McDonald, T.J.; Keefe, M.D. (Italimpianti of America, Inc., Coraopolis, PA (United States). Instrumentation and Controls Dept.)

1993-07-01T23:59:59.000Z

73

Utilization of computational fluid dynamics technique in low NOx burner/furnace retrofits  

SciTech Connect (OSTI)

A computational fluid dynamics (CFD) technique has been utilized to provide design guidance for retrofitting low NOx combustion systems and incorporating associated furnace modifications into existing utility boilers. The CFD program utilized is FW-FIRES (Fossil fuel, Water-walled Furnace Integrated Reaction and Emission Simulation) which simulates furnace combustion, heat transfer and pollutant formation based on fundamental principals of mass, momentum and energy conservations. The program models the gas flow field as a three-dimensional turbulent reacting continuum and the particle flow as a series of discrete particle trajectories through the gas continuum. Chemical reaction, heat transfer, and pollutant formation mechanisms are incorporated in the program. FW-FIRES furnace simulation of low NOx combustion system retrofits has been performed for various furnace configurations including front wall-fired, front and real wall-fired, and tangentially-fired furnaces, to determine the effects of burner/furnace modifications on the NOx emission, furnace exit gas temperature, furnace heat absorption, unburned carbon, and furnace wall corrosion. For front wall-fired, and front and real wall-fired furnaces, the NOx emission requirement is met by the use of Foster Wheeler lox NOx burners and overfire air (OFA) staging. Studies of burner and OFA quantify and spacing are conducted to limit NOx emission and unburned carbon to acceptable levels. A major concern in once-through supercritical units with OFA is furnace wall corrosion which is caused by high furnace wall metal temperature and corrosive hydrogen sulfide (H{sub 2}S) created in a reducing atmosphere from part of coal sulfur. The FW-FIRES code is used to minimize this corrosion potential by selecting the proper location and quantity of boundary air. A simulation of tangentially-fired unit, which has been retrofitted with low NOx burners, is used to study the effect of the burner tilt on the furnace exit gas temperature. This paper details the basis and results of several CFD analyses conducted for potential retrofit programs.

Cho, S.M.; Seltzer, A.H.; Ma, J.; Steitz, T.H.; Grusha, J.; Cole, R.W.

1999-07-01T23:59:59.000Z

74

Conversion of Furnace oil fired boiler to biomass(Gliricidia) fired (External/Internal) furnace boiler; NA.  

E-Print Network [OSTI]

?? In the present era, with the prevailing competition, the cost of production plays a vital role. As the price of petroleum oils, especially diesel… (more)

Channa Gaya Siriwardhana, Kahandawa Arachchilage

2010-01-01T23:59:59.000Z

75

On numerical simulation of flow, heat transfer and combustion processes in tangentially-fired furnace  

SciTech Connect (OSTI)

In this work, an Eulerian/Lagrangian approach has been employed to investigate numerically flow characteristics, heat transfer and combustion processes inside corner-fired power plant boiler furnace. To avoid pseudo-diffusion that is significant in modeling tangentially-fired furnaces, some attempts have been made at improving the finite-difference scheme. Comparisons have been made between standard {kappa}-{epsilon} model and RNG {kappa}-{epsilon} model. Some new developments on turbulent diffusion of particles are taken into account in an attempt to improve computational accuracy. Finally, temperature deviation is studied numerically so as to gain deeper insight into tangentially fired furnace.

Sun, P.; Fan, J.; Cen, K.

1999-07-01T23:59:59.000Z

76

Furnace Black Characterization  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Furnace Black Furnace Black Characterization Sid Richardson Carbon Co Fort Worth, TX Dr. Michel Gerspacher 005F 2 Definitions Particle Aggregate = 20nm to 100nm "Diameter" = 200nm to 1,000nm "Length" = Set of Percolated Aggregates Particle (?) Aggregate Agglomerate Constituents Size = Tech/Scientific Challenge 005F 3 Furnace Process High Temperature Refractory Feedstock Oil Air Natural Gas Reaction Zone Quench 005F 4 Specific Surface Area 005F 5 Structure 3-D Morphology Key Characteristic Summary of Crystallographic Studies 005F 7 Methodologies 005F 8 Summary * For all furnace carbon black 12Å < L C < 17Å * Crystallite L a ≈ 25Å * Amorphous Carbon * No micropores * Very few surface groups (hetero atoms) { 005F 9 Effect of Heat Treatment on Amorphous Carbon

77

Paired Straight Hearth Furnace  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

PSH will use two linear tunnel hearth furnaces that share a common translating pallet train and which are aligned in parallel and run in opposite directions. Pellets are loaded...

78

A Furnace Temperature Regulator  

Science Journals Connector (OSTI)

Synopsis.—By making the heating coil of an electric furnace one arm of a wheatstone bridge, and combining this with a galvanometer regulator, thus keeping constant the resistance of the coil, we can, regardless of variations in the current supply, and with no attention, maintain constant the temperature of furnaces not too directly influenced by the temperature of the room, or where the surrounding air is kept constant. The power available in this regulator is relatively very great indeed; nothing has to be inserted within the furnace cavity, and the lag is practically nothing; the regulator is often almost at its best under conditions most unfavorable to other regulators. It has held a small furnace constant to 0.1° for hours at temperatures from 500° to 1400°.

Walter P. White and Leason H. Adams.

1919-07-01T23:59:59.000Z

79

Black liquor combustion validated recovery boiler modeling, five-year report  

SciTech Connect (OSTI)

The objective of this project was to develop a new computer model of a recovery boiler furnace using a computational fluid dynamics (CFD) code specifically tailored to the requirements for solving recovery boiler flows, and using improved submodels for black liquor combustion based on continued laboratory fundamental studies. The project originated in October 1990 and was scheduled to run for four years. At that time, there was considerable emphasis on developing accurate predictions of the physical carryover of macroscopic particles of partially burnt black liquor and smelt droplets out of the furnace, since this was seen as the main cause of boiler plugging. This placed a major emphasis on gas flow patterns within the furnace and on the mass loss rates and swelling and shrinking rates of burning black liquor drops. As work proceeded on developing the recovery boiler furnace model, it became apparent that some recovery boilers encounter serious plugging problems even when physical carryover was minimal. After the original four-year period was completed, the project was extended to address this issue. The objective of the extended project was to improve the utility of the models by including the black liquor chemistry relevant to air emissions predictions and aerosol formation, and by developing the knowledge base and computational tools to relate furnace model outputs to fouling and plugging of the convective sections of the boilers. The work done to date includes CFD model development and validation, acquisition of information on black liquor combustion fundamentals and development of improved burning models, char bed model development, and model application and simplification.

Grace, T.M.; Frederick, W.J.; Salcudean, M.; Wessel, R.A.

1996-08-01T23:59:59.000Z

80

Integrating multi-objective optimization with computational fluid dynamics to optimize boiler combustion process of a coal fired power plant  

Science Journals Connector (OSTI)

Abstract The dominant role of electricity generation and environment consideration have placed strong requirements on coal fired power plants, requiring them to improve boiler combustion efficiency and decrease carbon emission. Although neural network based optimization strategies are often applied to improve the coal fired power plant boiler efficiency, they are limited by some combustion related problems such as slagging. Slagging can seriously influence heat transfer rate and decrease the boiler efficiency. In addition, it is difficult to measure slag build-up. The lack of measurement for slagging can restrict conventional neural network based coal fired boiler optimization, because no data can be used to train the neural network. This paper proposes a novel method of integrating non-dominated sorting genetic algorithm (NSGA II) based multi-objective optimization with computational fluid dynamics (CFD) to decrease or even avoid slagging inside a coal fired boiler furnace and improve boiler combustion efficiency. Compared with conventional neural network based boiler optimization methods, the method developed in the work can control and optimize the fields of flue gas properties such as temperature field inside a boiler by adjusting the temperature and velocity of primary and secondary air in coal fired power plant boiler control systems. The temperature in the vicinity of water wall tubes of a boiler can be maintained within the ash melting temperature limit. The incoming ash particles cannot melt and bond to surface of heat transfer equipment of a boiler. So the trend of slagging inside furnace is controlled. Furthermore, the optimized boiler combustion can keep higher heat transfer efficiency than that of the non-optimized boiler combustion. The software is developed to realize the proposed method and obtain the encouraging results through combining ANSYS 14.5, ANSYS Fluent 14.5 and CORBA C++.

Xingrang Liu; R.C. Bansal

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Laser sealed vacuum insulating window  

DOE Patents [OSTI]

A laser sealed evacuated window panel is comprised of two glass panes held spaced apart in relation to each other by a plurality of spherical glass beads and glass welded around the edges to provide an evacuated space between the glass panes that is completely glass sealed from the exterior. The glass welded edge seal is obtained by welding the edges of the glass panes together with a laser beam while the glass panes and bead spacers are positioned in a vacuum furnace and heated to the annealing point of the glass to avoid stress fracture in the area of the glass weld. The laser welding in the furnace can be directed around the perimeter of the galss panel by a combination of rotating the glass panel and linearly translating or aiming the laser with a relay mirror.

Benson, D.K.; Tracy, C.E.

1985-08-19T23:59:59.000Z

82

Laser sealed vacuum insulation window  

DOE Patents [OSTI]

A laser sealed evacuated window panel is comprised of two glass panes held spaced apart in relation to each other by a plurality of spherical glass beads and glass welded around the edges to provide an evacuated space between the glass panes that is completely glass sealed from the exterior. The glass welded edge seal is obtained by welding the edges of the glass panes together with a laser beam while the glass panes and bead spacers are positioned in a vacuum furnace and heated to the annealing point of the glass to avoid stress fracture in the area of the glass weld. The laser welding in the furnace can be directed around the perimeter of the glass panel by a combination of rotating the glass panel and linearly translating or aiming the laser with a relay mirror.

Benson, David K. (Golden, CO); Tracy, C. Edwin (Golden, CO)

1987-01-01T23:59:59.000Z

83

Controlled combustion-zone firing of hogged fuel in new and retrofit boiler applications  

SciTech Connect (OSTI)

A new concept of furnace design embodying a well-defined primary combustion zone for wood waste has proven successful after two years of operation. The design was incorporated in a major rebuild of another boiler, and operation confirms its viability. (Refs. 7).

MacCallum, C.

1983-09-01T23:59:59.000Z

84

Black liquor combustion validated recovery boiler modeling: Final year report. Volume 1 (Main text and Appendix I, sections 1--4)  

SciTech Connect (OSTI)

This project was initiated in October 1990, with the objective of developing and validating a new computer model of a recovery boiler furnace using a computational fluid dynamics (CFD) code specifically tailored to the requirements for solving recovery boiler flows, and using improved submodels for black liquor combustion based on continued laboratory fundamental studies. The key tasks to be accomplished were as follows: (1) Complete the development of enhanced furnace models that have the capability to accurately predict carryover, emissions behavior, dust concentrations, gas temperatures, and wall heat fluxes. (2) Validate the enhanced furnace models, so that users can have confidence in the predicted results. (3) Obtain fundamental information on aerosol formation, deposition, and hardening so as to develop the knowledge base needed to relate furnace model outputs to plugging and fouling in the convective sections of the boiler. (4) Facilitate the transfer of codes, black liquid submodels, and fundamental knowledge to the US kraft pulp industry. Volume 1 contains the main body of the report and the first 4 sections of Appendix 1: Modeling of black liquor recovery boilers -- summary report; Flow and heat transfer modeling in the upper furnace of a kraft recovery boiler; Numerical simulation of black liquor combustion; and Investigation of turbulence models and prediction of swirling flows for kraft recovery furnaces.

Grace, T.M.; Frederick, W.J.; Salcudean, M.; Wessel, R.A.

1998-08-01T23:59:59.000Z

85

Furnace | OpenEI  

Open Energy Info (EERE)

Furnace Furnace Dataset Summary Description The following data-set is for a benchmark residential home for all TMY3 locations across all utilities in the US. The data is indexed by utility service provider which is described by its "unique" EIA ID ( Source National Renewable Energy Laboratory Date Released April 05th, 2012 (2 years ago) Date Updated April 06th, 2012 (2 years ago) Keywords AC apartment CFL coffeemaker Computer cooling cost demand Dishwasher Dryer Furnace gas HVAC Incandescent Laptop load Microwave model NREL Residential television tmy3 URDB Data text/csv icon Residential Cost Data for Common Household Items (csv, 14.5 MiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Annually Time Period License License Open Data Commons Public Domain Dedication and Licence (PDDL)

86

Improved graphite furnace atomizer  

DOE Patents [OSTI]

A graphite furnace atomizer for use in graphite furnace atomic absorption spectroscopy is described wherein the heating elements are affixed near the optical path and away from the point of sample deposition, so that when the sample is volatilized the spectroscopic temperature at the optical path is at least that of the volatilization temperature, whereby analyteconcomitant complex formation is advantageously reduced. The atomizer may be elongated along its axis to increase the distance between the optical path and the sample deposition point. Also, the atomizer may be elongated along the axis of the optical path, whereby its analytical sensitivity is greatly increased.

Siemer, D.D.

1983-05-18T23:59:59.000Z

87

Spring Home Maintenance: Windows, Windows, Windows! | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Spring Home Maintenance: Windows, Windows, Windows! Spring Home Maintenance: Windows, Windows, Windows! Spring Home Maintenance: Windows, Windows, Windows! April 26, 2013 - 11:42am Addthis Caulking is an easy way to reduce air leakage around your windows. | Photo courtesy of ©iStockphoto.com/BanksPhotos Caulking is an easy way to reduce air leakage around your windows. | Photo courtesy of ©iStockphoto.com/BanksPhotos Erin Connealy Communications Specialist, Office of Energy Efficiency and Renewable Energy How can I participate? Use these tips for window maintence and treatments to save energy this spring. The beginning of spring marks the point in the year when I'm cleaning, purging the house of things I no longer need, and updating my home on needed repairs. This year, I'm focusing on how to lower my energy bills

88

Spring Home Maintenance: Windows, Windows, Windows! | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Home Maintenance: Windows, Windows, Windows! Home Maintenance: Windows, Windows, Windows! Spring Home Maintenance: Windows, Windows, Windows! April 26, 2013 - 11:42am Addthis Caulking is an easy way to reduce air leakage around your windows. | Photo courtesy of ©iStockphoto.com/BanksPhotos Caulking is an easy way to reduce air leakage around your windows. | Photo courtesy of ©iStockphoto.com/BanksPhotos Erin Connealy Communications Specialist, Office of Energy Efficiency and Renewable Energy How can I participate? Use these tips for window maintence and treatments to save energy this spring. The beginning of spring marks the point in the year when I'm cleaning, purging the house of things I no longer need, and updating my home on needed repairs. This year, I'm focusing on how to lower my energy bills

89

Residential Condensing Gas Furnaces | Department of Energy  

Office of Environmental Management (EM)

Gas Furnaces Residential Condensing Gas Furnaces Standardized Templates for Reporting Test Results residentialcondensinggasfurnacev1.0.xlsx More Documents & Publications...

90

NOx Control Options and Integration for US Coal Fired Boilers  

SciTech Connect (OSTI)

This is the Final Report for DOE Cooperative Agreement No: DE-FC26-00NT40753. The goal of the project was to develop cost-effective analysis tools and techniques for demonstrating and evaluating low-NOx control strategies and their possible impact on boiler performance for boilers firing US coals. The Electric Power Research Institute (EPRI) provided co-funding for this program. This project included research on: (1) In furnace NOx control; (2) Impacts of combustion modifications on boiler operation; (3) Selective Catalytic Reduction (SCR) catalyst testing and (4) Ammonia adsorption/removal on fly ash. Important accomplishments were achieved in all aspects of the project. Rich Reagent Injection (RRI), an in-furnace NOx reduction strategy based on injecting urea or anhydrous ammonia into fuel rich regions in the lower furnace, was evaluated for cyclone-barrel and PC fired utility boilers. Field tests successfully demonstrated the ability of the RRI process to significantly reduce NOx emissions from a staged cyclone-fired furnace operating with overfire air. The field tests also verified the accuracy of the Computational Fluid Dynamic (CFD) modeling used to develop the RRI design and highlighted the importance of using CFD modeling to properly locate and configure the reagent injectors within the furnace. Low NOx firing conditions can adversely impact boiler operation due to increased waterwall wastage (corrosion) and increased soot production. A corrosion monitoring system that uses electrochemical noise (ECN) corrosion probes to monitor, on a real-time basis, high temperature corrosion events within the boiler was evaluated. Field tests were successfully conducted at two plants. The Ohio Coal Development Office provided financial assistance to perform the field tests. To investigate soot behavior, an advanced model to predict soot production and destruction was implemented into an existing reacting CFD modeling tool. Comparisons between experimental data collected in a pilot scale furnace and soot behavior predicted by the CFD model showed good agreement. Field and laboratory tests were performed for SCR catalysts used for coal and biomass co-firing applications. Fundamental laboratory studies were performed to better understand mechanisms involved with catalyst deactivation. Field tests with a slip stream reactor were used to create catalyst exposed to boiler flue gas for firing coal and for co-firing coal and biomass. The field data suggests the mechanisms leading to catalyst deactivation are, in order of importance, channel plugging, surface fouling, pore plugging and poisoning. Investigations were performed to better understand the mechanisms involved with catalyst regeneration through mechanical or chemical methods. A computer model was developed to predict NOx reduction across the catalyst in a SCR. Experiments were performed to investigate the fundamentals of ammonia/fly ash interactions with relevance to the operation of advanced NOx control technologies such as selective catalytic reduction. Measurements were performed for ammonia adsorption isotherms on commercial fly ash samples subjected to a variety of treatments and on the chemistry of dry and semi-dry ammonia removal processes. This work resulted in the first fundamental ammonia isotherms on carbon-containing fly ash samples. This work confirms industrial reports that aqueous solution chemistry takes place upon the introduction of even very small amounts of water, while the ash remains in a semi-dry state.

Mike Bockelie; Marc Cremer; Kevin Davis; Martin Denison; Adel Sarofim; Connie Senior; Hong-Shig Shim; Dave Swenson; Bob Hurt; Eric Suuberg; Eric Eddings; Kevin Whitty; Larry Baxter; Calvin Bartholomew; William Hecker

2006-06-30T23:59:59.000Z

91

Advancement of Electrochromic Windows  

E-Print Network [OSTI]

Guide for Early-Market Electrochromic Windows. LBNL-59950.Guide for Early-Market Electrochromic Windows Attachment 17:electrochromic prototype windows that were deemed sufficiently mature for market

2006-01-01T23:59:59.000Z

92

Zero Energy Windows  

E-Print Network [OSTI]

Energy Performance of Electrochromic Windows Controlled for2006). Advancement of Electrochromic Windows, CaliforniaSavings Potential of Electrochromic Windows in the U.S.

Arasteh, Dariush; Selkowitz, Steve; Apte, Josh; LaFrance, Marc

2006-01-01T23:59:59.000Z

93

Copper Doped GaAs Infrared Filter for the 8-13 m Atmospheric Window  

E-Print Network [OSTI]

regions of interest, such as atmospheric transmission windows. Filters exclude solar or thermal photonsCdTe is typically melt grown in a high temperature furnace. All three elements in this alloy are toxic. Stability

Peale, Robert E.

94

Disposal of boiler ash  

SciTech Connect (OSTI)

As more boilers are converted from oil to solid fuels such as coal, the quantity of ash requiring disposal will increase dramatically. The factors associated with the development of land disposal systems for ash landfills are presented, including ash characterization, site selection procedures, design parameters, and costs.

Atwell, J.S.

1981-08-01T23:59:59.000Z

95

Results of heat tests of the TGE-435 main boiler in the PGU-190/220 combined-cycle plant of the Tyumen' TETs-2 cogeneration plant  

SciTech Connect (OSTI)

Special features of operation of a boiler operating as a combined-cycle plant and having its own furnace and burner unit are descried. The flow of flue gases on the boiler is increased due to feeding of exhaust gases of the GTU into the furnace, which intensifies the convective heat exchange. In addition, it is not necessary to preheat air in the convective heating surfaces (the boiler has no air preheater). The convective heating surfaces of the boiler are used for heating the feed water, thus replacing the regeneration extractions of the steam turbine (HPP are absent in the circuit) and partially replacing the preheating of condensate (the LPP in the circuit of the unit are combined with preheaters of delivery water). Regeneration of the steam turbine is primarily used for the district cogeneration heating purposes. The furnace and burner unit of the exhaust-heat boiler (which is a new engineering solution for the given project) ensures utilization of not only the heat of the exhaust gases of the GTU but also of their excess volume, because the latter contains up to 15% oxygen that oxidizes the combustion process in the boiler. Thus, the gas temperature at the inlet to the boiler amounts to 580{sup o}C at an excess air factor a = 3.50; at the outlet these parameters are utilized to T{sub out} = 139{sup o}C and a{sub out} = 1.17. The proportions of the GTU/boiler loads that can actually be organized at the generating unit (and have been checked by testing) are presented and the proportions of loads recommended for the most efficient operation of the boiler are determined. The performance characteristics of the boiler are presented for various proportions of GTU/boiler loads. The operating conditions of the superheater and of the convective trailing heating surfaces are presented as well as the ecological parameters of the generating unit.

A.V. Kurochkin; A.L. Kovalenko; V.G. Kozlov; A.I. Krivobok [Engineering Center of the Ural Power Industry (Russian Federation)

2007-01-15T23:59:59.000Z

96

LBNL Windows & Daylighting Software -- WINDOW Documentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

CGDB Import Into WINDOW CGDB Import Into WINDOW Updated: 11/14/12 Detailed Instructions for Importing CGDB data into WINDOW These instructions apply to either WINDOW 6 or 7. WINDOW 6 vs WINDOW 7 Because the database structure of WINDOW 6 is different that WINDOW 7, there are different CGDB files to go with each version of WINDOW. There are also different versions of the XML files for each version, because in WINDOW 7 some problems with the files were fixed. Setup of CGDB The CGDB consists of a WINDOW database of records in the Shading Layer, Shade Material Library, and Glass Library, as well as a set of text files for systems that reference BSDF XML files. Database: The installation will put two databases into the "LBNL Shared" directory: (the location will depend on your operating system):

97

Experimental characterization of an industrial pulverized coal-fired furnace under deep staging conditions  

SciTech Connect (OSTI)

Measurements have been performed in a 300 MWe, front-wall-fired, pulverized-coal, utility boiler. This boiler was retrofitted with boosted over fire air injectors that allowed the operation of the furnace under deeper staging conditions. New data are reported for local mean gas species concentration of O{sub 2}, CO, CO{sub 2}, NOx, gas temperatures and char burnout measured at several ports in the boiler including those in the main combustion and staged air regions. Comparisons of the present data with our previous measurements in this boiler, prior to the retrofitting with the new over fire system, show lower O{sub 2} and higher CO concentrations for the new situation as a consequence of the lower stoichiometry in the main combustion zone associated with the present boiler operating condition. Consistently, the measured mean NOx concentrations in the main combustion zone are now lower than those obtained previously, yielding emissions below 500 mg/Nm{sup 3}at 6% O{sub 2}. Finally, the measured values of particle burnout at the furnace exit are acceptable being those measured in the main combustion zone comparable with those obtained with the conventional over fire system.

Costa, M.; Azevedo, J.L.T. [Universidade Tecnica de Lisboa, Lisbon (Portugal)

2007-07-01T23:59:59.000Z

98

Formation of acidic sulfates in kraft recovery boilers  

SciTech Connect (OSTI)

Acidic sulfates (NaHSO[sub 4] and Na[sub 2]S[sub 2]O[sub 7]) have been suggested as the cause of corrosive sticky deposits in recovery boilers. Recovery-boiler precipitator dusts and pure Na[sub 2]SO[sub 4] were examined for their tendency to form acidic sulfates in simulated flue gases. Formation was strongly influenced by temperature and by gas-phase concentrations of SO[sub x] and H[sub 2]O. Liquid NaHSO[sub 4] formed readily at 250 C at SO[sub x] concentration above 150 ppm. Formation reactions were hindered by Na[sub 2]CO[sub 3]. Under appropriate conditions, acidic sulfates can exist at tube surfaces near the furnace roof, at the upper screen tubes, and in the generating bank and economizer.

Poon, W.; Barham, D.; Tran, H. (Univ. of Toronto, Ontario (Canada))

1993-07-01T23:59:59.000Z

99

Non-carbon induction furnace  

DOE Patents [OSTI]

The present invention is directed to an induction furnace for melting and casting highly pure metals and alloys such as uranium and uranium alloys in such a manner as to minimize contamination of the melt by carbon derived from the materials and the environment within the furnace. The subject furnace is constructed of non-carbon materials and is housed within a conventional vacuum chamber. The furnace comprises a ceramic oxide crucible for holding the charge of metal or alloys. The heating of the crucible is achieved by a plasma-sprayed tungsten susceptor surrounding the crucible which, in turn, is heated by an rf induction coil separated from the susceptor by a cylinder of inorganic insulation. The furnace of the present invention is capable of being rapidly cycled from ambient temperatures to about 1650/sup 0/C for effectively melting uranium and uranium alloys without the attendant carbon contamination problems previously encountered when using carbon-bearing furnace materials.

Holcombe, C.E.; Masters, D.R.; Pfeiler, W.A.

1984-01-06T23:59:59.000Z

100

Reduce Air Infiltration in Furnaces  

Broader source: Energy.gov [DOE]

This tip sheet describes how to save process heating energy and costs by reducing air infiltration in industrial furnaces; tips include repairing leaks and increasing insulation.

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Sandia National Laboratories: Solar Furnace  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Test Facility * NSTTF * Parabolic Dish * Renewable Energy * SAND 2011-4654W * solar * Solar Energy * Solar Furnace * solar power * Solar Research Comments are closed. Renewable...

102

Blast furnace taphole drill  

SciTech Connect (OSTI)

A blast furnace taphole drill has a flaring head with cutting edges at its cutting end formed by intersecting angled faces. A central bore carries cleaning air to the cutting end. To prevent blockage of the cleaning air bore by debris and possible jamming of the drill, the head has deep radial grooves formed at the bottoms of the valley shapes between the cutting edges. The grooves extend radially from the air bore and conduct the air so that it can get behind or under jammed debris. Reduced taphole drilling times can be achieved.

Gozeling, J.A.; de Boer, S.; Spiering, A.A.

1984-06-26T23:59:59.000Z

103

Return Condensate to the Boiler  

Broader source: Energy.gov [DOE]

This tip sheet on returning condensate to boilers provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

104

Improve Your Boiler's Combustion Efficiency  

SciTech Connect (OSTI)

This revised ITP tip sheet on boiler combustion efficiency provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

Not Available

2006-01-01T23:59:59.000Z

105

Boiler Stack Economizer Tube Failure  

Science Journals Connector (OSTI)

A metallurgical evaluation was performed to investigate the failure of a type 304 stainless steel tube from a boiler stack economizer. The tube had three distinct degradation mechanisms...

Ryan J. Haase; Larry D. Hanke

2013-10-01T23:59:59.000Z

106

Minimize Boiler Short Cycling Losses  

Broader source: Energy.gov [DOE]

This tip sheet on minimizing boiler short cycling losses provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

107

LBNL Windows & Daylighting Software -- WINDOW Documentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

(6.3.74 -- February 14, 2012) Release Notes Updated: 02/15/13 If you find bugs, or if you think these have not been fixed, please do not hesitate to send an email to WINDOWHelp@lbl.gov to report your findings. Getting feedback from users is how we improve the program. WINDOW 6.3.74 Program Changes Window LIbrary: Window Types In previous versions of WINDOW 6.3, there were two different Window Type lists, with conflicting ID numbers, which resulted in the possibility of a Window Library made with one set of Window Types would become corrupted (the wrong Window Types assigned) if the database records were imported into a another database with the different Window Type list. To solve this problem, we have added a database "migration" with this version of WINDOW -- when it opens any older database, it will update the Window Types list to have the choices (and IDs) shown below and then it will also update all the Window Library records to map to the new Window Types based on what the records were set to originally.

108

Boiler Maximum Achievable Control Technology (MACT) Technical...  

Broader source: Energy.gov (indexed) [DOE]

Boiler Maximum Achievable Control Technology (MACT) Technical Assistance - Fact Sheet, May 2014 Boiler Maximum Achievable Control Technology (MACT) Technical Assistance - Fact...

109

Covered Product Category: Commercial Boilers | Department of...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

be brought online quickly, therefore avoiding the need to keep a boiler on hot standby. Remote monitoring capability: Remote monitoring capability is useful to manage boiler...

110

Development of the household sample for furnace and boilerlife-cycle cost analysis  

SciTech Connect (OSTI)

Residential household space heating energy use comprises close to half of all residential energy consumption. Currently, average space heating use by household is 43.9 Mbtu for a year. An average, however, does not reflect regional variation in heating practices, energy costs, or fuel type. Indeed, a national average does not capture regional or consumer group cost impacts from changing efficiency levels of heating equipment. The US Department of Energy sets energy standards for residential appliances in, what is called, a rulemaking process. The residential furnace and boiler efficiency rulemaking process investigates the costs and benefits of possible updates to the current minimum efficiency regulations. Lawrence Berkeley National Laboratory (LBNL) selected the sample used in the residential furnace and boiler efficiency rulemaking from publically available data representing United States residences. The sample represents 107 million households in the country. The data sample provides the household energy consumption and energy price inputs to the life-cycle cost analysis segment of the furnace and boiler rulemaking. This paper describes the choice of criteria to select the sample of houses used in the rulemaking process. The process of data extraction is detailed in the appendices and is easily duplicated. The life-cycle cost is calculated in two ways with a household marginal energy price and a national average energy price. The LCC results show that using an national average energy price produces higher LCC savings but does not reflect regional differences in energy price.

Whitehead, Camilla Dunham; Franco, Victor; Lekov, Alex; Lutz, Jim

2005-05-31T23:59:59.000Z

111

LBNL Windows & Daylighting Software -- WINDOW  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

WINDOW WINDOW NFRC Certification Version Release Version Beta Version WINDOW 6.3 (For NFRC Certification and modeling Complex Glazing Systems) WINDOW 7.1 For modeling vacuum glazing, deflected glass, vertical venetian blinds and perforated screens WINDOW 7.2 For modeling Cellular Shades, in addition to vacuum glazing, deflected glass, vertical venetian blinds and perforated screens Download WINDOW 6.3 (for NFRC Certification and complex glazing systems) Download WINDOW 7.1 Download WINDOW 7.2 Knowledge Base (Check here first if you are experiencing a problem with the software) Knowledge Base (Check here first if you are experiencing a problem with the software) Knowledge Base (Check here first if you are experiencing a problem with the software) New Features

112

LBNL Windows & Daylighting Software -- WINDOW Documentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

WINDOW 6 and THERM 6 Technical Documentation WINDOW 6 and THERM 6 Technical Documentation Algorithm Documentation WINDOW6 and THERM6 implement the ISO 15099 algorithms: bullet ISO 15099 The algorithms in WINDOW6 and THERM6 follow the procedures presented in ISO 15099: "Thermal performance of windows, doors and shading devices - Detailed calculations." See: http://webstore.ansi.org/ansidocstore/product.asp?sku=ISO+15099%3A2003 In addition to implementing ISO 15099 algorithms in WINDOW6 and THERM6, we have added additional capabilities to WINDOW6. The following reports and papers describe these additional capabilities and/or elaborate on ISO15099. bullet Thermal Algorithm Documentation for THERM6: Conrad 5 & Viewer 5 Technical and Programming Documentation June 20, 2006 bullet Thermal Algorithm Documentation for WINDOW6:

113

Small boiler uses waste coal  

SciTech Connect (OSTI)

Burning coal waste in small boilers at low emissions poses considerable problem. While larger boiler suppliers have successfully installed designs in the 40 to 80 MW range for some years, the author has been developing small automated fluid bed boiler plants for 25 years that can be applied in the range of 10,000 to 140,000 lbs/hr of steam. Development has centered on the use of an internally circulating fluid bed (CFB) boiler, which will burn waste fuels of most types. The boiler is based on the traditional D-shaped watertable boiler, with a new type of combustion chamber that enables a three-to-one turndown to be achieved. The boilers have all the advantages of low emissions of the large fluid boilers while offering a much lower height incorporated into the package boiler concept. Recent tests with a waste coal that had a high nitrogen content of 1.45% demonstrated a NOx emission below the federal limit of 0.6 lbs/mm Btu. Thus a NOx reduction on the order of 85% can be demonstrate by combustion modification alone. Further reductions can be made by using a selective non-catalytic reduction (SNCR) system and sulfur absorption of up to 90% retention is possible. The article describes the operation of a 30,000 lbs/hr boiler at the Fayette Thermal LLC plant. Spinheat has installed three ICFB boilers at a nursing home and a prison, which has been tested on poor-grade anthracite and bituminous coal. 2 figs.

Virr, M.J. [Spinheat Ltd. (United States)

2009-07-15T23:59:59.000Z

114

Advancement of Electrochromic Windows  

E-Print Network [OSTI]

of a thin-film ceramic electrochromic window: Field studyof a Thin-Film Ceramic Electrochromic Window: Field StudyEC window product characteristics The EC is a thin-film WO3-

2006-01-01T23:59:59.000Z

115

Boiler tube failures in municipal waste-to-energy plants: Case histories  

SciTech Connect (OSTI)

Waste-to-energy plants experienced boiler tube failures when the design changed from waste-heat boilers to radiant furnace waterwalls with superheat, adopted from coal-firing technology. The fireside attack by chlorine and sulfur compounds in the refuse combustion products caused many forced outages in early European plants with high steam temperatures and pressures. In spite of conservative steam conditions in the first US plants, some failures occurred. As steam temperatures increased in later US plants, corrosion problems multiplied. Over the years these problems have been alleviated by covering the waterwalls with either refractories or weld overlays of nickel-base alloys and using high nickel-chromium alloys for superheater tubes. Various changes in furnace design to provide uniform combustion and avoid reducing conditions in the waterwall zone and to lower the gas temperature in the superheater also have helped to minimize corrosion.

Krause, H.H.; Wright, I.G. [Battelle, Columbus, OH (United States)

1995-12-01T23:59:59.000Z

116

Development of Computational Capabilities to Predict the Corrosion Wastage of Boiler Tubes in Advanced Combustion Systems  

SciTech Connect (OSTI)

A comprehensive corrosion research project consisting of pilot-scale combustion testing and long-term laboratory corrosion study has been successfully performed. A pilot-scale combustion facility available at Brigham Young University was selected and modified to enable burning of pulverized coals under the operating conditions typical for advanced coal-fired utility boilers. Eight United States (U.S.) coals were selected for this investigation, with the test conditions for all coals set to have the same heat input to the combustor. In addition, the air/fuel stoichiometric ratio was controlled so that staged combustion was established, with the stoichiometric ratio maintained at 0.85 in the burner zone and 1.15 in the burnout zone. The burner zone represented the lower furnace of utility boilers, while the burnout zone mimicked the upper furnace areas adjacent to the superheaters and reheaters. From this staged combustion, approximately 3% excess oxygen was attained in the combustion gas at the furnace outlet. During each of the pilot-scale combustion tests, extensive online measurements of the flue gas compositions were performed. In addition, deposit samples were collected at the same location for chemical analyses. Such extensive gas and deposit analyses enabled detailed characterization of the actual combustion environments existing at the lower furnace walls under reducing conditions and those adjacent to the superheaters and reheaters under oxidizing conditions in advanced U.S. coal-fired utility boilers. The gas and deposit compositions were then carefully simulated in a series of 1000-hour laboratory corrosion tests, in which the corrosion performances of different commercial candidate alloys and weld overlays were evaluated at various temperatures for advanced boiler systems. Results of this laboratory study led to significant improvement in understanding of the corrosion mechanisms operating on the furnace walls as well as superheaters and reheaters in coal-fired boilers resulting from the coexistence of sulfur and chlorine in the fuel. A new corrosion mechanism, i.e., “Active Sulfidation Corrosion Mechanism,” has been proposed to account for the accelerated corrosion wastage observed on the furnace walls of utility boilers burning coals containing sulfur and chlorine. In addition, a second corrosion mechanism, i.e., “Active Sulfide-to-Oxide Corrosion Mechanism,” has been identified to account for the rapid corrosion attack on superheaters and reheaters. Both of the newly discovered corrosion mechanisms involve the formation of iron chloride (FeCl2) vapor from iron sulfide (FeS) and HCl, followed by the decomposition of FeCl2 via self-sustaining cycling reactions. For higher alloys containing sufficient chromium, the attack on superheaters and reheaters is dominated by Hot Corrosion in the presence of a fused salt. Furthermore, two stages of the hot corrosion mechanism have been identified and characterized in detail. The initiation of hot corrosion attack induced by molten sulfate leads to Stage 1 “acidic” fluxing and re-precipitation of the protective scale formed initially on the deposit-covered alloy surfaces. Once the protective scale is penetrated, Stage 2 Hot Corrosion is initiated, which is dominated by “basic” fluxing and re-precipitation of the scale in the fused salt. Based on the extensive corrosion information generated from this project, corrosion modeling was performed using non-linear regression analysis. As a result of the modeling efforts, two predictive equations have been formulated, one for furnace walls and the other for superheaters and reheaters. These first-of-the-kind equations can be used to estimate the corrosion rates of boiler tubes based on coal chemistry, alloy compositions, and boiler operating conditions for advanced boiler systems.

Kung, Steven; Rapp, Robert

2014-08-31T23:59:59.000Z

117

High pressure oxygen furnace  

DOE Patents [OSTI]

A high temperature high pressure oxygen furnace having a hybrid partially externally heated construction is disclosed. A metallic bar fabricated from an alloy having a composition of at least 45% nickel, 15% chrome, and 10% tungsten is utilized, the preferred alloy including 55% nickel, 22% chrome, 14% tungsten, 2% molybdenum, 3% iron (maximum) and 5% cobalt (maximum). The disclosed alloy is fabricated into 11/4 inch bar stock and has a length of about 17 inches. This bar stock is gun drilled for over 16 inches of its length with 0.400 inch aperture to define a closed high temperature, high pressure oxygen chamber. The opposite and closed end of the bar is provided with a small support aperture into which both a support and a thermocouple can be inserted. The closed end of the gun drilled bar is inserted into an oven, preferably heated by standard nickel chrome electrical elements and having a heavily insulated exterior. 5 figs.

Morris, D.E.

1992-07-14T23:59:59.000Z

118

High pressure oxygen furnace  

DOE Patents [OSTI]

A high temperature high pressure oxygen furnace having a hybrid partially externally heated construction is disclosed. A metallic bar fabricated from an alloy having a composition of at least 45% nickel, 15% chrome, and 10% tungsten is utilized (the preferred alloy including 55% nickel, 22% chrome, 14% tungsten, 2% molybdenum, 3% iron (maximum) and 5% cobalt (maximum). The disclosed alloy is fabricated into 11/4 inch bar stock and has a length of about 17 inches. This bar stock is gun drilled for over 16 inches of its length with 0.400 inch aperture to define a closed high temperature, high pressure oxygen chamber. The opposite and closed end of the bar is provided with a small support aperture into which both a support and a thermocouple can be inserted. The closed end of the gun drilled bar is inserted into an oven, preferably heated by standard nickel chrome electrical elements and having a heavily insulated exterior.

Morris, Donald E. (Kensington, CA)

1992-01-01T23:59:59.000Z

119

FURNACE INJECTION OF ALKALINE SORBENTS FOR SULFURIC ACID CONTROL  

SciTech Connect (OSTI)

This document summarizes progress on Cooperative Agreement DE-FC26-99FT40718, Furnace Injection of Alkaline Sorbents for Sulfuric Acid Control, during the time period April 1, 2001 through September 30, 2001. The objective of this project is to demonstrate the use of alkaline reagents injected into the furnace of coal-fired boilers as a means of controlling sulfuric acid emissions. The coincident removal of hydrochloric acid and hydrofluoric acid is also being determined, as is the removal of arsenic, a known poison for NO{sub x} selective catalytic reduction (SCR) catalysts. EPRI, the Tennessee Valley Authority (TVA), FirstEnergy Corporation, and the Dravo Lime Company are project co-funders. URS Corporation is the prime contractor. During the current period, American Electric Power (AEP) joined the project as an additional co-funder and as a provider of a host site for testing. This is the fourth reporting period for the subject Cooperative Agreement. During this period, two long-term sorbent injection tests were conducted, one on Unit 3 at FirstEnergy's Bruce Mansfield Plant (BMP) and one on Unit 1 at AEP's Gavin Station. These tests determined the effectiveness of injecting alkaline slurries into the upper furnace of the boiler as a means of controlling sulfuric acid emissions from these units. The alkaline slurries tested included commercially available magnesium hydroxide slurry (Gavin Station), and a byproduct magnesium hydroxide slurry (both Gavin Station and BMP). The tests showed that injecting either the commercial or the byproduct magnesium hydroxide slurry could achieve up to 70 to 75% sulfuric acid removal. At BMP, the overall removal was limited by the need to maintain acceptable electrostatic precipitator (ESP) particulate control performance. At Gavin Station, the overall sulfuric acid removal was limited because the furnace injected sorbent was less effective at removing SO{sub 3} formed across the SCR system installed on the unit for NO{sub x} control than at removing SO{sub 3} formed in the furnace. Balance of plant impacts, primarily on the ESP particulate control device, were also determined during both tests. These results are presented and discussed in this report.

Gary M. Blythe

2001-11-06T23:59:59.000Z

120

Specifying Waste Heat Boilers  

E-Print Network [OSTI]

, refineries,kilns, incineration systems and cogeneration and combined cycle plants,to mention a few applications.Depending on several factors such as quantity of gas or steam floW,cleanl1ness of gas,gas and steam pressure and space availabilitY,they may... of incinerator.whether fixed bed.rotary kiln or fluid bed.Sla9ging constituents present in the gas can result in bridging of tubes by molten salts if tube spacing is not wide,particularly at the boiler inlet.Ash hoppers ,soot blowers and cleaning lanes...

Ganapathy, V.

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Advancement of Electrochromic Windows  

E-Print Network [OSTI]

Guide for Early-Market Electrochromic Windows. LBNL-59950.Granqvist, C.G. 2000. "Electrochromic Tungsten Oxide Films:the performance of the electrochromic windows. Proceedings

2006-01-01T23:59:59.000Z

122

Energy Efficiency Opportunities in EPA's Boiler Rules  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Opportunities in EPA's Boiler Rules Opportunities in EPA's Boiler Rules On December 20, 2012, the US Environmental Protection Agency (EPA) finalized new regulations to control emissions of hazardous air pollutants (HAP) from commercial, industrial, and institutional boilers and process heaters. These new rules, known as the Boiler MACT (major sources) and Boiler Area Source Rule (smaller sources), will reduce the amount of HAPS such as mercury, heavy metals, and other toxics that enter the environment. Since emissions from boilers are linked to fuel consumption, energy efficiency is an important strategy for complying with the new Boiler rules. Who is affected? Most existing industrial, commercial and institutional (ICI) boilers will not be affected by the Boiler MACT. These unaffected boilers are mostly small natural gas-fired boilers. Only about 14% of all existing

123

LBNL Windows & Daylighting Software -- WINDOW Documentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Specular Glazing Systems Specular Glazing Systems NFRC THERM 6.3 / WINDOW 6.3 Simulation Manual July 2013: bullet Entire Manual in PDF Format approximate 8 MB Comparison of WINDOW 5 / THERM 5 and WINDOW 6 / THERM 6 Results for Specular Glazing Systems (PDF Format) NFRC WINDOW 6 / THERM 6 Training for Specular Systems (Power Point Presentation, Oct/Nov 2010) Tutorials Complex Glazing Systems bullet WINDOW 6.2 / THERM 6.2 Research Version User Manual (Documents features in WINDOW6 and THERM 6 for modeling complex glazing systems) bullet WINDOW 6.2 / THERM 6.2 Simulation Manual Chapter for Complex Glazing (Draft) This was used for NFRC Simulator training in June 2009, and includes detailed descriptions for modeling venetian blinds between glass and frits. bullet Complex Glazing Summary -- PDF File

124

WaterFurnace Renewable Energy Inc formerly WaterFurnace Industries Inc WFI  

Open Energy Info (EERE)

WaterFurnace Renewable Energy Inc formerly WaterFurnace Industries Inc WFI WaterFurnace Renewable Energy Inc formerly WaterFurnace Industries Inc WFI Jump to: navigation, search Name WaterFurnace Renewable Energy Inc (formerly: WaterFurnace Industries, Inc (WFI)) Place Indiana Zip 46809 Sector Geothermal energy Product WaterFurnace develops and manufactures geothermal heating and cooling systems. References WaterFurnace Renewable Energy Inc (formerly: WaterFurnace Industries, Inc (WFI))[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. WaterFurnace Renewable Energy Inc (formerly: WaterFurnace Industries, Inc (WFI)) is a company located in Indiana . References ↑ "WaterFurnace Renewable Energy Inc (formerly: WaterFurnace Industries, Inc (WFI))"

125

Experience on coal reburn in a utility boiler  

Science Journals Connector (OSTI)

Reburning is an in-furnace combustion modification technology for the reduction of NOx. By staging the introduction of the fuel, an environment is created where NOx generated by the combustion of the main fuel supply is subsequently consumed by the hydrocarbon radicals arising from the reburn fuel under reducing conditions. ENEL has retrofitted unit No. 4 of Vado Ligure power station with coalover-coal reburn technology, with the target of 65% reduction of NOx emissions (425 mg/Nm³ of NOx @ 6% O2, with American Ashland coal). This retrofit represents the first application of the technology to a utility boiler in Europe, and it has been undertaken by a consortium of European companies, research centres and universities, as listed in the following ENEL (Italy), Mitsui Babcock Energy (United Kingdom), Ansaldo (Italy), Electricity Supply Board (Ireland), PowerGen (United Kingdom), Instituto Superior Tecnico Lisbon (Portugal), Electricidade de Portugal, Howden & Sons (United Kingdom), Electricité de France and University of Stuttgart (Germany), with the support of the European Community through the Thermie Programme. Results from the experimental campaign show that it has been possible to achieve NOx emissions in the order of 350 mg/Nm³ (@6% O2), burning a variety of coals, with carbon in ash ranging from 5 to 8%. Calculations performed on the experimental data show that the impact on boiler operation is also minimised, with a negligible change on the boiler heat transfer pattern.

Luca Ghiribelli

2002-01-01T23:59:59.000Z

126

Experimental investigation and model validation of the heat flux profile in a 300 MW CFB boiler  

Science Journals Connector (OSTI)

Abstract In this paper, systematic experimental investigation on the heat flux distribution inside the furnace of a 300 MW CFB boiler was presented. Detailed experimental setup and measurement techniques were presented and a finite element method approach was applied to determine the heat flux. The heat flux profile on the rear wall along the horizontal direction shows a significant imbalance at different boiler loads. As a result of the non-uniform layout of the heating surfaces, which is the essential reason, as well as the imbalance and deviation of the temperature field, solid suspension density and solid flow rate, the central section of the furnace possesses higher heat flux distribution compared to the side sections. The heat flux is also found to increase with the increasing boiler load and decrease as the height increases. Heat flux near the roof, where the solid suspension density is rather small, is found to decrease remarkably revealing less heat absorption in this area. In addition, an empirical model of heat transfer coefficient is revised using the average data at different boiler loads. A mechanism heat transfer model based on the membrane water-wall configuration is proposed and validated with the heat flux profile obtained from the measurement. The model provides good accuracy for correlating 85% of the data within ± 10%.

Ruiqing Zhang; Hairui Yang; Nan Hu; Junfu Lu; Yuxin Wu

2013-01-01T23:59:59.000Z

127

Steam Cracker Furnace Energy Improvements  

E-Print Network [OSTI]

Channel, ~ 25 mi. east of Houston ? Includes 4 manufacturing sites, 2 technology/engineering offices ?Significant community involvement Baytown Refinery Page 4 Steam Cracking to Olefins ? Process 60+ years old; ExxonMobil one of pioneers... Steam Cracker Furnace Energy Improvements Tim Gandler Energy Coordinator Baytown Olefins Plant, Baytown Tx 2010 Industrial Energy Technology Conference May, 2010 Page 2 ? Baytown Complex ? Steam Cracking to Olefins ? Furnace overview...

Gandler, T.

128

Fossil fuel furnace reactor  

DOE Patents [OSTI]

A fossil fuel furnace reactor is provided for simulating a continuous processing plant with a batch reactor. An internal reaction vessel contains a batch of shale oil, with the vessel having a relatively thin wall thickness for a heat transfer rate effective to simulate a process temperature history in the selected continuous processing plant. A heater jacket is disposed about the reactor vessel and defines a number of independent controllable temperature zones axially spaced along the reaction vessel. Each temperature zone can be energized to simulate a time-temperature history of process material through the continuous plant. A pressure vessel contains both the heater jacket and the reaction vessel at an operating pressure functionally selected to simulate the continuous processing plant. The process yield from the oil shale may be used as feedback information to software simulating operation of the continuous plant to provide operating parameters, i.e., temperature profiles, ambient atmosphere, operating pressure, material feed rates, etc., for simulation in the batch reactor.

Parkinson, William J. (Los Alamos, NM)

1987-01-01T23:59:59.000Z

129

Variable frequency microwave furnace system  

DOE Patents [OSTI]

A variable frequency microwave furnace system (10) designed to allow modulation of the frequency of the microwaves introduced into a furnace cavity (34) for testing or other selected applications. The variable frequency microwave furnace system (10) includes a microwave signal generator (12) or microwave voltage-controlled oscillator (14) for generating a low-power microwave signal for input to the microwave furnace. A first amplifier (18) may be provided to amplify the magnitude of the signal output from the microwave signal generator (12) or the microwave voltage-controlled oscillator (14). A second amplifier (20) is provided for processing the signal output by the first amplifier (18). The second amplifier (20) outputs the microwave signal input to the furnace cavity (34). In the preferred embodiment, the second amplifier (20) is a traveling-wave tube (TWT). A power supply (22) is provided for operation of the second amplifier (20). A directional coupler (24) is provided for detecting the direction of a signal and further directing the signal depending on the detected direction. A first power meter (30) is provided for measuring the power delivered to the microwave furnace (32). A second power meter (26) detects the magnitude of reflected power. Reflected power is dissipated in the reflected power load (28).

Bible, Don W. (Clinton, TN); Lauf, Robert J. (Oak Ridge, TN)

1994-01-01T23:59:59.000Z

130

Variable frequency microwave furnace system  

DOE Patents [OSTI]

A variable frequency microwave furnace system designed to allow modulation of the frequency of the microwaves introduced into a furnace cavity for testing or other selected applications. The variable frequency microwave furnace system includes a microwave signal generator or microwave voltage-controlled oscillator for generating a low-power microwave signal for input to the microwave furnace. A first amplifier may be provided to amplify the magnitude of the signal output from the microwave signal generator or the microwave voltage-controlled oscillator. A second amplifier is provided for processing the signal output by the first amplifier. The second amplifier outputs the microwave signal input to the furnace cavity. In the preferred embodiment, the second amplifier is a traveling-wave tube (TWT). A power supply is provided for operation of the second amplifier. A directional coupler is provided for detecting the direction of a signal and further directing the signal depending on the detected direction. A first power meter is provided for measuring the power delivered to the microwave furnace. A second power meter detects the magnitude of reflected power. Reflected power is dissipated in the reflected power load. 5 figs.

Bible, D.W.; Lauf, R.J.

1994-06-14T23:59:59.000Z

131

High Performance Window Attachments  

Broader source: Energy.gov (indexed) [DOE]

High Performance Window High Performance Window Attachments D. Charlie Curcija Lawrence Berkeley National Laboratory dccurcija@lbl.gov 510-495-2602 April 4, 2013 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Impact of Project: * Motivate manufacturers to make improvements in Window systems U-Factors, SHGC and daylighting utilization * Increase awareness of benefits from energy efficient window attachments Problem Statement: * A wide range of residential window attachments are available, but they have widely unknown

132

Oxy-combustion Boiler Material Development  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Oxy-combustion Boiler Material Oxy-combustion Boiler Material Development Background In an oxy-combustion system, combustion air (79 percent nitrogen, 21 percent oxygen) is replaced by oxygen and recycled flue gas (carbon dioxide [CO 2 ] and water), eliminating nitrogen in the flue gas stream. When applied to an existing boiler, the flue gas recirculation rate is adjusted to enable the boiler to maintain its original air-fired heat absorption performance, eliminating the need to derate the boiler

133

Design considerations for CFB boilers  

Science Journals Connector (OSTI)

Since the 1970s, circulating fluidized bed (CFB) technology has been applied to combustion and ... firing of solid fuels. The success of CFB boilers is mainly due to their fuel... x and...

Yam Y. Lee

1997-01-01T23:59:59.000Z

134

Minimize Boiler Short Cycling Losses  

SciTech Connect (OSTI)

This revised ITP tip sheet on minimizing boiler short cycling losses provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

Not Available

2006-01-01T23:59:59.000Z

135

The Efficient Window Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

5 5 The Efficient Window Collaborative http://www.efficientwindows.org Energy-efficient windows make up only about 35% of the U.S. residential window market, even though they are cost-effective in approximately 80% or more of all applications. To ensure that efficient windows reach their optimum potential in homes throughout the U.S., the Department of Energy and key players in the U.S. window industry have formed the Efficient Window Collaborative (EWC). The EWC's goal is doubling the market share of efficient windows by 2005. With 31 charter members from the window and glass industries, the EWC is managed jointly by the Washington, D.C.-based Alliance to Save Energy and the Center for Building Science's Windows and Daylighting Group. The EWC serves as a focal point for voluntary

136

BPM Motors in Residential Gas Furnaces: What are the Savings?  

E-Print Network [OSTI]

standby power consumption in BPM furnaces is significantlytotal electricity consumption by BPM furnaces. This is notOverall, it appears the BPM motors used in furnaces offer

Lutz, James; Franco, Victor; Lekov, Alex; Wong-Parodi, Gabrielle

2006-01-01T23:59:59.000Z

137

BPM Motors in Residential Gas Furnaces: What are the Savings?  

E-Print Network [OSTI]

of the total electricity consumption by BPM furnaces. Thisbecause furnace electricity consumption is significant.of furnace electricity consumption. Therefore, accurate

Lutz, James; Franco, Victor; Lekov, Alex; Wong-Parodi, Gabrielle

2006-01-01T23:59:59.000Z

138

Furnace Blower Electricity: National and Regional Savings Potential  

E-Print Network [OSTI]

Inc. Pigg, Scott. 2003. Electricity Use by New Furnaces: Astage furnaces offer national electricity savings, but withABORATORY Furnace Blower Electricity: National and Regional

Franco, Victor; Florida Solar Energy Center

2008-01-01T23:59:59.000Z

139

Philadelhia Gas Works (PGW) Doe Furnace Rule | Department of...  

Energy Savers [EERE]

Philadelhia Gas Works (PGW) Doe Furnace Rule Philadelhia Gas Works (PGW) Doe Furnace Rule DOE Furnace Rule More Documents & Publications Focus Series: Philadelphia Energyworks: In...

140

Dynamic simulation of a circulating fluidized bed boiler of low circulating ratio with wide particle size distributions  

SciTech Connect (OSTI)

A steady state model of a coal fired CFB boiler considering the hydrodynamics, heat transfer and combustion is presented. This model predicts the flue gas temperature, the chemical gas species (O{sub 2}, H{sub 2}O, CO, CO{sub 2} and SO{sub 2}) and char concentration distributions in both the axial and radial location along the furnace including the bottom and upper portion. The model was validated against experimental data generated in a 35 t/h commercial CFB boiler with low circulating ratio.

Lu Huilin; Yang Lidan; Bie Rushan; Zhao Guangbo

1999-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

window.xp  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

New New in Building Energy Efficiency Selecting Windows for Energy Efficiency New window technologies have increased energy benefits and comfort, and have provided more practical options for consumers. This selection guide will help homeowners, architects, and builders take advantage of the expanding window market. The guide contains three sections: an explanation of energy-related window characteristics, a discussion of window energy performance ratings, and a convenient checklist for window selection. S electing the right window for a specific home invariably requires tradeoffs between dif- ferent energy performance features, and with other non-energy issues. An understanding of some basic energy concepts is therefore essential to choosing appropriate windows and skylights. As illustrated on the fol-

142

Advanced Windows Test Facility  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Exterior of Advanced Windows Test Facility Exterior of Advanced Windows Test Facility Advanced Windows Test Facility This multi-room laboratory's purpose is to test the performance and properties of advanced windows and window systems such as electrochromic windows, and automatically controlled shutters and blinds. The lab simulates real-world office spaces. Embedded instrumentation throughout the lab records solar gains and losses for specified time periods, weather conditions, energy use, and human comfort indicators. Electrochromic glazings promise to be a major advance in energy-efficient window technology, helping to achieve the goal of transforming windows and skylights from an energy liability in buildings to an energy source. The glazing can be reversibly switched from a clear to a transparent, colored

143

Cement advanced furnace and process  

SciTech Connect (OSTI)

This patent describes a suspension shaft furnace for producing discrete cement clinkers from discrete pellets of cement-forming batch materials which are gravity-migrated therethrough. It comprises a vertical furnace housing enclosing a top pellet-feeding and preheating zone comprising an elongate vertical shaft section opening into an intermediate fluidized bed section comprising fuel inlet conduits, an air-permeable clinker-impermeable support; a lower clinker-cooling section beneath the fluidized bed section; clinker-discharge means communicating between the fluidized bed section and the cooling section and air inlet means.

Litka, A.F.; Cohen, S.M.

1992-06-02T23:59:59.000Z

144

Effect of Combustion Air Preheat on a Forged Furnace Productivity  

E-Print Network [OSTI]

to determine are the effects of combustion air preheat on four additional furnace operating characteristics. These characteristics are: (1) fuel utilization of a furnace operating cycle; (2) time to heat the furnace load; (3) scale production; and (4) furnace...

Ward, M. E.; Bohn, J.; Davis, S. R.; Knowles, D.

1984-01-01T23:59:59.000Z

145

Breakthrough Furnace Can Cut Solar Industry Costs  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Furnace can Cut Solar Industry Costs A game-changing Optical Cavity Furnace (OCF)-developed by the National Renew- able Energy Laboratory (NREL) with funding from the U.S....

146

OPERATING EXPERIENCE ON SINGLE AND THREE PASS BOILERS IN THE CANE SUGAR INDUSTRY WITH PARTICULAR REFERENCE TO EROSION AND DRUM WATER LEVEL STABILITY  

E-Print Network [OSTI]

Two boiler designs have recently emerged to suit the present requirements of the cane sugar industry, viz the single pass panel wall unit and the three pass, bottom supported boiler with an open pitch furnace tube construction. The former is less susceptible to erosion compared with the original concept of the three pass boiler. It is believed that the three pass unit in its present form as installed at Tongaat will be effective in reducing erosion in the tube bank. The effect of fuel properties on the performance of boiler plant is considered and it is shown that efficient operation, in addition to improving the utilisation of bagasse, can result in a significant reduction in tube erosion. A relationship is presented for determining dust loadings as a function of the grate heat release rate and the fuel ash content at the furnace and main bank exits. Circulation studies undertaken on both boiler types are presented indicating very similar circulation rates. Shrink and swell characteristics and hence the drum level stability can be related to the volume of water contained in the system and the water plan area in the drum at the steam- water interface. Finally the mechanical design features of the two boiler designs are compared to provide an insight into the design philosophies relating to the two units.

N. Magasiner; D. P. Naude; P. J. Mcintyre

147

Furnace Blower Electricity: National and Regional Savings Potential  

E-Print Network [OSTI]

Currently, total electricity consumption of furnaces isthe total furnace electricity consumption and are primarilyto calculate the electricity consumption during cooling

Franco, Victor; Florida Solar Energy Center

2008-01-01T23:59:59.000Z

148

Latest Development of CFB Boilers in China  

Science Journals Connector (OSTI)

The circulating fluidized bed (CFB) coal-fired boiler has being rapidly developed ... the development history and development status of the CFB boiler in China are introduced. The development history of the CFB b...

G. X. Yue; H. R. Yang; J. F. Lu; H. Zhang

2010-01-01T23:59:59.000Z

149

Numerical Simulation in a Supercirtical CFB Boiler  

Science Journals Connector (OSTI)

The dimension of the hot circulation loop of the supercritical CFB boiler is large, and there are many ... simulation of gas-solid flow in a supercritical CFB boiler was conducted by using FLUENT software. ... th...

Yanjun Zhang; Xiang Gaol; Zhongyang Luo…

2010-01-01T23:59:59.000Z

150

New Concept of CFB Boiler with FGD  

Science Journals Connector (OSTI)

This paper introduces the technology characteristic of CFB Boiler with CFB-FGD on the basis of the summary of desulfurization principle in CFB boiler. The technology can overcome disadvantage of...

Pan Xueqin

2009-01-01T23:59:59.000Z

151

Mobile Window Thermal Test  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Mobile Window Thermal Test (MoWiTT) Facility Mobile Window Thermal Test (MoWiTT) Facility winter.jpg (469135 bytes) The window has come a long way since the days when it was a single pane of glass in a wood frame. Low-emissivity windows were designed to help buildings retain some of the energy that would have leaked out of less efficient windows. Designing efficient window-and-frame systems is one strategy for reducing the energy use of buildings. But the net energy flowing through a window is a combination of temperature- driven thermal flows and transmission of incident solar energy, both of which vary with time. U-factor and solar heat gain coefficient (SHGC), the window properties that control these flows, depend partly on ambient conditions. Window energy flows can affect how much energy a building uses, depending on when the window flows are available to help meet other energy demands within the building, and when they are adverse, adding to building energy use. This leads to a second strategy for reducing building energy use: using the beneficial solar gain available through a window, either for winter heating or for daylighting, while minimizing adverse flows.

152

EXHAUST GAS BOILER FIRE PERVENTION  

E-Print Network [OSTI]

Today's demands for better overall usability of fuel oil in large two-stroke low speed marine diesel engines greatly influenced their development, and the purity of their exhaust gases. With this paper we would like to indicate on to factors which directly influence on soot forming, deposition and cause of occurance of fire in exhaust gas boiler (EGB). Due the fact that a fire in the EGB can result in complete destruction of the boiler, and a longer interruption of the vessel commercial operations, crew must be familiar with the main reasons of soot deposition on the boiler tubes and elements and origination of fire, and to have taken proper and timely protection measures 1.

Branko Lali? Dipl. Ing; Mr. Ivan Komar; Dipl. Ing

153

High Performance Windows Volume Purchase: The Windows Volume Purchase RFP  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The Windows The Windows Volume Purchase RFP to someone by E-mail Share High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on Facebook Tweet about High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on Twitter Bookmark High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on Google Bookmark High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on Delicious Rank High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on Digg Find More places to share High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on AddThis.com... Home About FAQs Low-E Storm Windows Request for Proposal Contacts For Builders For Residential Buyers For Light Commercial Buyers For Manufacturers

154

Sootblowing optimization for improved boiler performance  

DOE Patents [OSTI]

A sootblowing control system that uses predictive models to bridge the gap between sootblower operation and boiler performance goals. The system uses predictive modeling and heuristics (rules) associated with different zones in a boiler to determine an optimal sequence of sootblower operations and achieve boiler performance targets. The system performs the sootblower optimization while observing any operational constraints placed on the sootblowers.

James, John Robert; McDermott, John; Piche, Stephen; Pickard, Fred; Parikh, Neel J

2013-07-30T23:59:59.000Z

155

Boiler Combustion Control and Monitoring System  

Broader source: Energy.gov [DOE]

Efficiency of existing boilers can be improved in three ways; replacement with new boilers, replacement of the burner, or installation of a combustion control system. While installation of a new boiler or replacement of the burner can lead to the greatest efficiency gains, the higher costs associated with these measures typically leads to longer payback periods than combustion control systems.

156

Advancement of Electrochromic Windows  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Advancement of Electrochromic Windows Advancement of Electrochromic Windows Title Advancement of Electrochromic Windows Publication Type Report LBNL Report Number LBNL-59821 Year of Publication 2006 Authors Lee, Eleanor S., Stephen E. Selkowitz, Robert D. Clear, Dennis L. DiBartolomeo, Joseph H. Klems, Luis L. Fernandes, Gregory J. Ward, Vorapat Inkarojrit, and Mehry Yazdanian Date Published 04/2006 Other Numbers CEC-500-2006-052 Keywords commercial buildings, daylight, daylighting controls, Electrochromic windows, energy efficiency, human factors, peak demand, switchable windows, visual comfort Abstract This guide provides consumer-oriented information about switchable electrochromic (EC) windows. Electrochromic windows change tint with a small applied voltage, providing building owners and occupants with the option to have clear or tinted windows at any time, irrespective of whether it's sunny or cloudy. EC windows can be manually or automatically controlled based on daylight, solar heat gain, glare, view, energy-efficiency, peak electricity demand response, or other criteria. Window controls can be integrated with other building systems, such as lighting and heating/cooling mechanical systems, to optimize interior environmental conditions, occupant comfort, and energy-efficiency.

157

Windows and Daylighting  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Office building exterior Office building exterior Windows and Daylighting Windows research is aimed at improving energy efficiency in buildings and homes across the nation. Research includes: New glazing materials Windows simulation software Advanced high-performance fenestration systems Daylighting technologies Measurement of window properties Windows performance in residential and commercial buildings. Contacts Stephen Selkowitz SESelkowitz@lbl.gov (510) 486-5064 Eleanor Lee ESLee@lbl.gov (510) 486-4997 Charlie Curcija DCCurcija@lbl.gov (510) 495-2602 Links Windows and Daylighting Daylighting the New York Times Headquarters Building Batteries and Fuel Cells Buildings Energy Efficiency Applications Commercial Buildings Cool Roofs and Heat Islands Demand Response Energy Efficiency Program and Market Trends

158

Highly Insulating Windows - Publ  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Highly Insulating Windows - Publications Future Advanced Windows for Zero-Energy Homes, J. Apte, D. Arasteh, J. Huang, 2003 ASHRAE Annual Meeting, 2002 Nine representative window products are examined in eight representative U.S. climates. Annual energy and peak demand impacts are investigated. We conclude that a new generation of window products is necessary for zero-energy homes if windows are not to be an energy drain on these homes. Performance Criteria for Residential Zero Energy Windows, D. Arasteh, H. Goudey, J. Huang, C. Kohler, R. Mitchell, 2006, submitted to ASHRAE Through the use of whole house energy modeling, typical efficient products are evaluated in five US climates and compared against the requirements for ZEHs. Products which meet these needs are defined as a function of climate.

159

Highly Insulating Window Technology  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Window Technology Window Technology Temperature differentials across a window, particularly with cold exterior environments in residential buildings, can lead to significant energy losses. Currently available low-emissivity coatings, gas-fills, and insulating frames provide significant energy savings over typical single or double glazed products. The EWC website provides information on how double glazed low-e gas-filled windows work as well as information on commercially available superwindows (three layer, multiple low-e coatings, high performance gas-fills). The next generation of highly insulating window systems will benefit from incremental improvements being made to current components (i.e. more insulating spacers and frame materials/designs, low-e coatings with improved performance properties). LBNL uses its experimental facilities and software tools to collaborate with window and glass industry representatives to better understand the impacts of new components on overall product performance.

160

Covered Product Category: Commercial Boilers  

Broader source: Energy.gov [DOE]

The Federal Energy Management Program (FEMP) provides acquisition guidance and Federal efficiency requirements for commercial boilers, which is a FEMP-designated product category. Federal laws and requirements mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law.

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Factors affecting stress assisted corrosion cracking of carbon steel under industrial boiler conditions.  

E-Print Network [OSTI]

??Failure of carbon steel boiler tubes from waterside has been reported in the utility boilers and industrial boilers for a long time. In industrial boilers,… (more)

Yang, Dong

2008-01-01T23:59:59.000Z

162

Window industry technology roadmap  

SciTech Connect (OSTI)

Technology roadmap describing technology vision, barriers, and RD and D goals and strategies compiled by window industry stakeholders and government agencies.

Brandegee

2000-04-27T23:59:59.000Z

163

LBNL Windows & Daylighting Software -- WINDOW Documentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Optics 6.0 Optics 6.0 (6.0 -- February 13, 2012) Release Notes Updated: 07/16/12 Program Changes Microsoft Windows 7 / Vista Operating System"Aware" Optics now installs and operates much better under the Microsoft Windows 7 and Vista operating systems. It is no longer necessary to run the "VistaFix" batch file after installing the program. Fixed Bugs If you find bugs, or if you think these have not been fixed, please do not hesitate to send an email to OpticsHelp@lbl.gov to report your findings. Getting feedback from users is how we improve the program. Paths Appear in Tools/Options In the Microsoft Windows 7 / Vista Operating System environments, the program would not display the directory paths in the Tools / Options "File Locations" dialog box. This is now fixed.

164

LBNL Windows & Daylighting Software -- WINDOW Documentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Cellular / Honeycomb Shades Cellular / Honeycomb Shades Updated 09/30/2013 It is now possible to model cellular / honeycomb shading systems in the Shading System Library and then add them to a glazing system in the Glazing System Library. NOTE: Before attempting to calculate a glazing system with a cellular shade, you must make the following change to the THERM7.ini file, which is located in C:\Users\Public\LBNL\Settings. Close WINDOW7 before making this change. DocPath=C:\Users\Public\LBNL\WINDOW7\debug Shading Layer Library A cellular / honeycomb shade can now be defined in the Shading Layer Library. Defining this type of shading system requires an XML file which contains information about the cell geometry and the material thermal and optical properties. WINDOW can model two different types of cellular shades:

165

In-Field Performance of Condensing Boilers  

Broader source: Energy.gov (indexed) [DOE]

IN-FIELD PERFORMANCE OF CONDENSING IN-FIELD PERFORMANCE OF CONDENSING BOILERS Lois B. Arena Steven Winter Associates, Inc. March 2012 Why Research Hydronic Heating? © 2012 Steven Winter Associates, Inc. All rights reserved Reasons to Research Boilers  Approx. 14 million homes (11%) in the US are heated with a steam or hot water system  Almost 70 percent of existing homes were built prior to 1980  Boilers built prior to 1980 generally have AFUE's of 0.65 or lower  Energy savings of 20+% are possible by simply replacing older boilers with standard boilers & up to 30% with condensing boilers.  Optimizing condensing boilers in new and existing homes could mean the difference of 8-10% savings with little to no

166

Alternate Materials for Recovery Boiler Superheater Tubes  

SciTech Connect (OSTI)

The ever escalating demands for increased efficiency of all types of boilers would most sensibly be realized by an increase in the steam parameters of temperature and pressure. However, materials and corrosion limitations in the steam generating components, particularly the superheater tubes, present major obstacles to boiler designers in achieving systems that can operate under the more severe conditions. This paper will address the issues associated with superheater tube selection for many types of boilers; particularly chemical recovery boilers, but also addressing the similarities in issues for biomass and coal fired boilers. It will also review our recent study of materials for recovery boiler superheaters. Additional, more extensive studies, both laboratory and field, are needed to gain a better understanding of the variables that affect superheater tube corrosion and to better determine the best means to control this corrosion to ultimately permit operation of recovery boilers at higher temperatures and pressures.

Keiser, James R [ORNL; Kish, Joseph [McMaster University; Singbeil, Douglas [FPInnovations

2009-01-01T23:59:59.000Z

167

Miscellaneous comments on boiler control tuning  

SciTech Connect (OSTI)

This article is about boiler control tuning, a task both difficult and important. Why is tuning of the boiler control so difficult Because it is essentially one large, interactive, non-linear control loop, which does not lend itself to automatic tuning. Why is good tuning of the boiler control so important Because it impacts boiler and turbine efficiency, unit ramp rate and generation error, unit turn-down (low load operation), and unit availability (ability to survive process upsets and equipment failures). Can you improve boiler operation through tuning alone Yes, if the practitioner of this art is competent, boiler control tuning can cover-up a multitude of sins. However, it is best to combined tuning with a new control system, appropriate control strategies, good measurements and small deadband actuators. This paper describes the basics of boiler control tuning.

Keller, G.Y. (Burns and Roe Enterprises, Oradell, NJ (United States))

1994-01-01T23:59:59.000Z

168

Highly Insulating Windows - Cost  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Cost Cost The following is an estimate of the cost effective incremental cost of highly-insulating windows (U-factor=0.20 Btu/hr-ft2-F) compared to regular ENERGY STAR windows (U-factor 0.35 Btu/hr-ft2-F). Energy savings from lower U-factors were simulated with RESFEN over an assumed useful window life of 25 years. To determine the maximum incremental cost at which highly-insulating windows would still be cost-effective, we used a formula used by many utility companies to calculate the cost of saved energy from energy efficiency programs, based on the programs' cost and savings. We turned this formula around so that the cost of saved energy equals the present energy prices in the studied locations, whereas the program cost (the incremental cost of the windows) is the dependent variable. By entering 5%

169

Plasma window characterization  

SciTech Connect (OSTI)

Parameters of an arc Ar plasma discharge used as a plasma window with a discharge current of {approx}50 A and a voltage of {approx}58 V are presented. It is shown that this arc discharge allows one to decrease the pressure at the low pressure end of the plasma window almost 380 times using relatively low pumping at the low pressure end of the plasma window. Calculations of the plasma parameters and their spatial distribution using a simple wall-stabilized arc model showed a satisfactory agreement with the experimentally obtained data. It is shown that a significant decrease in gas flow through the plasma window occurs due to the increase in plasma viscosity. An improvement of the plasma window ignition and some of its design aspects are described as well.

Krasik, Ya. E.; Gleizer, S.; Gurovich, V.; Kronhaus, I.; Hershcovitch, A.; Nozar, P.; Taliani, C. [Physics Department, Technion, 32000 Haifa (Israel); Brookhaven National Laboratory, New York 11973-5000 (United States); Istituto per lo Studio dei Materiali Nanostrutturati, 40 129 Bologna (Italy)

2007-03-01T23:59:59.000Z

170

Window Types | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Window Types Window Types Window Types June 18, 2012 - 8:06am Addthis A wood-frame window with insulated window glazing. | Photo courtesy of ©iStockphoto/chandlerphoto A wood-frame window with insulated window glazing. | Photo courtesy of ©iStockphoto/chandlerphoto What does this mean for me? If you have old windows, they are likely losing large amounts of energy through the frames and glazing. By upgrading old windows, you can reduce heating and cooling costs in your home. Windows come in a number of different frame and glazing types. By combining an energy-efficient frame choice with a glazing type tailored to your climate and application, you can customize each of your home's windows. Types of Window Frames Improving the thermal resistance of the frame can contribute to a window's

171

Window Types | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Window Types Window Types Window Types June 18, 2012 - 8:06am Addthis A wood-frame window with insulated window glazing. | Photo courtesy of ©iStockphoto/chandlerphoto A wood-frame window with insulated window glazing. | Photo courtesy of ©iStockphoto/chandlerphoto What does this mean for me? If you have old windows, they are likely losing large amounts of energy through the frames and glazing. By upgrading old windows, you can reduce heating and cooling costs in your home. Windows come in a number of different frame and glazing types. By combining an energy-efficient frame choice with a glazing type tailored to your climate and application, you can customize each of your home's windows. Types of Window Frames Improving the thermal resistance of the frame can contribute to a window's

172

Evaluation of gas-reburning and low NO sub x burners on a wall fired boiler  

SciTech Connect (OSTI)

This clean coal technology project will demonstrate a combination of two developed technologies to reduce both NO{sub x} and (to some extent) SO{sub x} emissions: Gas reburning and low NO{sub x} burners. The demonstrations will be conducted on a pre-NSPS utility boiler representative of US boilers that contribute significantly to the inventory of acid rain precursor emissions: a wall fired unit. Low NO{sub x} burners operate on the principle of delayed mixing between the coal fuel and burner air, so that less NO{sub x} is burned. Gas reburning is a combustion modification technique that consists of firing 80--85 percent of the fuel corresponding to the total heat release in the lower furnace. Reduction of NO{sub x} to molecular nitrogen (N{sub 2}) is accomplished via the downstream injection of the remaining fuel requirement in the form of natural gas (which also reduces the total SO{sub x} emissions). In a third stage, burnout air is injected at lower temperatures in the upper furnace to complete the combustion process without generating significant additional NO{sub x}. The specific goal of this project is to demonstrate NO{sub x} and SO{sub x} emission reductions of 75 percent or more as a result of combining LNB and GR to a utility boiler having the design characteristics mentioned above. A Host Site Agreement has been signed by EER and a utility company in the State of Colorado: Public Service Company of Colorado (Cherokee Unit No. 3, 172 MW{sub e}) front wall fired boiler near Denver.

Not Available

1991-04-26T23:59:59.000Z

173

METHANE de-NOX for Utility PC Boilers  

SciTech Connect (OSTI)

The overall project objective is the development and validation of an innovative combustion system, based on a novel coal preheating concept prior to combustion, that can reduce NO{sub x} emissions to 0.15 lb/million Btu or less on utility pulverized coal (PC) boilers. This NO{sub x} reduction should be achieved without loss of boiler efficiency or operating stability, and at more than 25% lower levelized cost than state-of-the-art SCR technology. A further objective is to ready technology for full-scale commercial deployment to meet the market demand for NO{sub x} reduction technologies. Over half of the electric power generated in the U.S. is produced by coal combustion, and more than 80% of these units utilize PC combustion technology. Conventional measures for NOx reduction in PC combustion processes rely on combustion and post-combustion modifications. A variety of combustion-based NO{sub x} reduction technologies are in use today, including low-NO{sub x} burners (LNBs), flue gas recirculation (FGR), air staging, and natural gas or other fuel reburning. Selective non-catalytic reduction (SNCR) and selective catalytic reduction (SCR) are post-combustion techniques. NO{sub x} reduction effectiveness from these technologies ranges from 30 to 60% and up to 90-93% for SCR. Typically, older wall-fired PC burner units produce NO{sub x} emissions in the range of 0.8-1.6 lb/million Btu. Low-NO{sub x} burner systems, using combinations of fuel staging within the burner and air staging by introduction of overfire air in the boiler, can reduce NO{sub x} emissions by 50-60%. This approach alone is not sufficient to meet the desired 0.15 lb/million Btu NO{sub x} standard with a range of coals and boiler loads. Furthermore, the heavy reliance on overfire air can lead to increased slagging and corrosion in furnaces, particularly with higher-sulfur coals, when LNBs are operated at sub-stoichiometric conditions to reduce fuel-derived NOx in the flame. Therefore, it is desirable to minimize the need for overfire air by maximizing NO{sub x} reduction in the burner. The proposed combustion concept aims to greatly reduce NO{sub x} emissions by incorporating a novel modification to conventional or low-NO{sub x} PC burners using gas-fired coal preheating to destroy NO{sub x} precursors and prevent NO{sub x} formation. A concentrated PC stream enters the burner, where flue gas from natural gas combustion is used to heat the PC up to about 1500 F prior to coal combustion. Secondary fuel consumption for preheating is estimated to be 3 to 5% of the boiler heat input. This thermal pretreatment releases coal volatiles, including fuel-bound nitrogen compounds into oxygen-deficient atmosphere, which converts the coal-derived nitrogen compounds to molecular N{sub 2} rather than NO. Design, installation, shakedown, and testing on Powder River Basin (PRB) coal at a 3-million Btu/h pilot system at RPI's (Riley Power, Inc.) pilot-scale combustion facility (PSCF) in Worcester, MA demonstrated that the PC PREHEAT process has a significant effect on final O{sub x} formation in the coal burner. Modifications to both the pilot system gas-fired combustor and the PC burner led to NO{sub x} reduction with PRB coal to levels below 0.15 lb/million Btu with CO in the range of 35-112 ppmv without any furnace air staging.

Bruce Bryan; Serguei Nester; Joseph Rabovitser; Stan Wohadlo

2005-09-30T23:59:59.000Z

174

Crystal growth furnace with trap doors  

DOE Patents [OSTI]

An improved furnace is provided for growing crystalline bodies from a melt. The improved furnace is characterized by a door assembly which is remotely controlled and is arranged so as to selectively shut off or permit communication between an access port in the furnace enclosure and a hot zone within that enclosure. The invention is especially adapted to facilitate use of crystal growing cartridges of the type disclosed in U.S. Pat. No. 4,118,197.

Sachs, Emanual M. (Watertown, MA); Mackintosh, Brian H. (Lexington, MA)

1982-06-15T23:59:59.000Z

175

Furnace Litigation Settled | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

energy conservation standards for residential furnaces, central air conditioners, and heat pumps, including regional standards for different product types in indicated States....

176

Covered Product Category: Residential Gas Furnaces | Department...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

select products that feature sealed combustion. Condensing furnaces should not use indoor air, which frequently contains contaminants from common household products, for...

177

Boiler - tuning basics, part 1  

SciTech Connect (OSTI)

Tuning power plant controls takes nerves of steel and an intimate knowledge of plant systems gained only by experience. Tuning controls also requires equal parts art and science, which probably is why there are so few tuning experts in the power industry. In part 1 of a two-part series, the author explores a mix of the theoretical and practical aspects of tuning boiler control. 5 figs.

Leopold, T. [ABB Inc. (United States)

2009-03-15T23:59:59.000Z

178

Fluidized bed boiler feed system  

DOE Patents [OSTI]

A fluidized bed boiler feed system for the combustion of pulverized coal. Coal is first screened to separate large from small particles. Large particles of coal are fed directly to the top of the fluidized bed while fine particles are first mixed with recycled char, preheated, and then fed into the interior of the fluidized bed to promote char burnout and to avoid elutriation and carryover.

Jones, Brian C. (Windsor, CT)

1981-01-01T23:59:59.000Z

179

Regenerative Boiler Feedwater Heater Economics  

E-Print Network [OSTI]

REGENERATIVE BOILER FEEDWATER HEATER ECONOMICS William L. Viar, PE waterland, Viar & Associates, Inc. Wilmington, Delaware ABSTRACT The basic Rankine Vapor Cycle has been r,~peatedly modified to improve efficiency. Always, the objective....g., first and second laws of thermodynamics) have improved and contributed to the evolution. The demands for larger systems with higher performance have been persistent. Progress i ve changes in the app1icat ion of the fundamental Rankine cycle have...

Viar, W. L.

180

Field Evaluation of Windows  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Evaluation of Windows Evaluation of Windows Last Updated: 10/20/2009 Various tools can be used to evaluate windows in the field. Unless a new window still has the NFRC label attached to it, it is nearly impossible to determine by sight what the thermal and optical performance of a window is. These tools can provide information, such as low-e coating, gap width and gas fill, that can be used to approximate the performance of a window. Solar gain and Low-e detector This device can be used to determine if a low-e coating is present in the window, what type of coating it is, and where it is located. The type of low-e coating will indicate the amount of solar gain that is admitted through the coating. Readings can be "low", "medium" or "high". The device will also indicate on which glass surface the low-e coating is in relation to the position of the device. Limitations: Only works on glass of 1/8" (3 mm) or thinner. Cost: around $350 from EDTM.com

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Tips: Windows | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Windows Windows Tips: Windows June 18, 2012 - 9:43am Addthis Tips: Windows Windows can be one of your home's most attractive features. Windows provide views, daylighting, ventilation, and heat from the sun in the winter. Unfortunately, they can also account for 10% to 25% of your heating bill by letting heat out. During the summer, your air conditioner must work harder to cool hot air from sunny windows. Install ENERGY STAR®-qualified windows and use curtains and shade to give your air conditioner and energy bill a break. If your home has single-pane windows, consider replacing them with double-pane windows with high-performance glass-low-e or spectrally selective coatings. In colder climates, select gas-filled windows with low-e coatings to reduce heat loss. In warmer climates, select windows with

182

Operating experience with industrial packaged FBC boilers  

SciTech Connect (OSTI)

Jonston Boiler company has developed a packaged fluidized bed combustion firetube boiler which burns coal within a bed of inert material (limestone) efficiently and cleanly. The firetube boiler cross section is schematized and explained. After one year demonstration, a sale was made to Central Soya of Marion, Ohio. The control system, drum level control draft, baghouse control system and emissions tests are highlighted. A few incidents of defluidization are noted.

Hutchinson, B.

1982-06-01T23:59:59.000Z

183

Windows, Doors, & Skylights | Department of Energy  

Energy Savers [EERE]

Logan Architects. Windows affect home aesthetics as well as energy use. Window Types A wood-frame window with insulated window glazing. | Photo courtesy of iStockphoto...

184

Quantifying Energy Savings by Improving Boiler Operation  

E-Print Network [OSTI]

firing cycle, resulting in heat losses. Second, heat is lost from the natural convective draft through a boiler when not firing. Third, boilers run less efficiently in high fire than in low fire, since the ratio of heat transfer area to heat input... firing cycle, resulting in heat losses. Second, heat is lost from the natural convective draft through a boiler when not firing. Third, boilers run less efficiently in high fire than in low fire, since the ratio of heat transfer area to heat input...

Carpenter, K.; Kissock, J. K.

2005-01-01T23:59:59.000Z

185

Upgrade Boilers with Energy-Efficient Burners  

SciTech Connect (OSTI)

This revised ITP steam tip sheet on upgrading boilers provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

Not Available

2006-01-01T23:59:59.000Z

186

Minimize Boiler Blowdown | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Blowdown (January 2012) More Documents & Publications Install an Automatic Blowdown-Control System Recover Heat from Boiler Blowdown Consider Installing a Condensing Economizer...

187

Boiler System Efficiency Improves with Effective Water Treatment  

E-Print Network [OSTI]

Water treatment is an important aspect of boiler operation which can affect efficiency or result in damage if neglected. Without effective water treatment, scale can form on boiler tubes, reducing heat transfer, and causing a loss of boiler...

Bloom, D.

188

Novel CFB Boiler Technology with Reconstruction of its Fluidization State  

Science Journals Connector (OSTI)

Compared with a conventional pulverized coal fired boiler, the combustion efficiency of a CFB boiler is lower while the self-consumed ... key research topic for researchers and manufacturers of CFB boilers. Based...

H. R. Yang; H. Zhang; J. F. Lu; Q. Lfu…

2010-01-01T23:59:59.000Z

189

Subject Responses to Electrochromic Windows  

E-Print Network [OSTI]

Visual quality assessment of electrochromic and conventionalissues for large-area electrochromic windows in commercialOffice worker preferences of electrochromic windows: a pilot

Clear, Robert; Inkarojrit, Vorapat; Lee, Eleanor

2006-01-01T23:59:59.000Z

190

CH7 Windows Introduction  

E-Print Network [OSTI]

4 Server · Account lockout security ­ Protection contre les attaques sur les mots de passe Windows NT 4 Server · Account lockout security ­ Protection contre les attaques sur les mots de passe

Collette. Sébastien

191

Zero Energy Windows  

E-Print Network [OSTI]

estimates of the U-factor and SHGC for today’s installedtoday's window stock U-factor and SHGC properties used thosepoint. U-factor and SHGC estimates vary by prototypical

Arasteh, Dariush; Selkowitz, Steve; Apte, Josh; LaFrance, Marc

2006-01-01T23:59:59.000Z

192

Seeing Windows Through  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

8 8 Seeing Windows Through A profusion of gases, glazings, and gap sizes are among the factors that confound efforts to measure the energy performance of a window or skylight. The increasing variety of efficiency-enhancing options for windows and their frames poses a formidable challenge to builders, utilities, code officials, and consumers. Fortunately, a new system for accurately rating and labeling these products promises to help demystify them and to foster nationwide improvements in energy efficiency. NFRC is Born Window trade groups have historically organized around specific materials or components (such as glass or frames), and energy has rarely been their focal point. This changed in 1989 with the formation of the National Fenestration Rating Council. One impetus behind the industry's

193

Window Daylighting Demo  

Broader source: Energy.gov (indexed) [DOE]

Window Daylighting Demo: Window Daylighting Demo: Accelerated Deployment of Daylighting and Shading Systems Stephen Selkowitz Lawrence Berkeley National Laboratory seselkowitz@lbl.gov 510-486-5064 April 4, 2013 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: * Façade has large energy impacts. Cooling and lighting average ~ 40% of energy use in commercial buildings and often >50% in peak electric demand. * Many glazing/shading/daylighting options exist, but selecting the "best" solution is

194

Window Daylighting Demo  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Window Daylighting Demo: Window Daylighting Demo: Accelerated Deployment of Daylighting and Shading Systems Stephen Selkowitz Lawrence Berkeley National Laboratory seselkowitz@lbl.gov 510-486-5064 April 4, 2013 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: * Façade has large energy impacts. Cooling and lighting average ~ 40% of energy use in commercial buildings and often >50% in peak electric demand. * Many glazing/shading/daylighting options exist, but selecting the "best" solution is

195

High Performance Window Retrofit  

SciTech Connect (OSTI)

The US Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) and Traco partnered to develop high-performance windows for commercial building that are cost-effective. The main performance requirement for these windows was that they needed to have an R-value of at least 5 ft2 F h/Btu. This project seeks to quantify the potential energy savings from installing these windows in commercial buildings that are at least 20 years old. To this end, we are conducting evaluations at a two-story test facility that is representative of a commercial building from the 1980s, and are gathering measurements on the performance of its windows before and after double-pane, clear-glazed units are upgraded with R5 windows. Additionally, we will use these data to calibrate EnergyPlus models that we will allow us to extrapolate results to other climates. Findings from this project will provide empirical data on the benefits from high-performance windows, which will help promote their adoption in new and existing commercial buildings. This report describes the experimental setup, and includes some of the field and simulation results.

Shrestha, Som S [ORNL] [ORNL; Hun, Diana E [ORNL] [ORNL; Desjarlais, Andre Omer [ORNL] [ORNL

2013-12-01T23:59:59.000Z

196

Existing and prospective blast-furnace conditions  

SciTech Connect (OSTI)

Blast-furnace conditions are investigated by means of a multizone model. The expected performance of prospective technologies is assessed, as well as the trends in blast-furnace processes. The model permits the identification of means of overcoming practical difficulties.

I.G. Tovarovskii; V.I. Bol'shakov; V.P. Lyalyuk; A.E. Merkulov; D. V. Pinchuk [Ukrainian Academy of Sciences, Dnepropetrovsk (Ukraine). Institute of Ferrous Metallurgy

2009-07-15T23:59:59.000Z

197

Thermal Imaging Control of Furnaces and Combustors  

SciTech Connect (OSTI)

The object if this project is to demonstrate and bring to commercial readiness a near-infrared thermal imaging control system for high temperature furnaces and combustors. The thermal imaging control system, including hardware, signal processing, and control software, is designed to be rugged, self-calibrating, easy to install, and relatively transparent to the furnace operator.

David M. Rue; Serguei Zelepouga; Ishwar K. Puri

2003-02-28T23:59:59.000Z

198

Storm Windows | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Storm Windows Storm Windows Storm Windows June 18, 2012 - 8:20am Addthis An energy upgrade on this daycare center included interior storm windows because most of the windows are on the north elevation. | Photo courtesy of Larry Kinney, Synergistic Building Technologies. An energy upgrade on this daycare center included interior storm windows because most of the windows are on the north elevation. | Photo courtesy of Larry Kinney, Synergistic Building Technologies. Interior storm windows improved the energy efficiency of a daycare center with windows on the north elevation. | Photo courtesy of Larry Kinney, Synergistic Building Technologies. Interior storm windows improved the energy efficiency of a daycare center with windows on the north elevation. | Photo courtesy of Larry Kinney,

199

Storm Windows | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Storm Windows Storm Windows Storm Windows June 18, 2012 - 8:20am Addthis An energy upgrade on this daycare center included interior storm windows because most of the windows are on the north elevation. | Photo courtesy of Larry Kinney, Synergistic Building Technologies. An energy upgrade on this daycare center included interior storm windows because most of the windows are on the north elevation. | Photo courtesy of Larry Kinney, Synergistic Building Technologies. Interior storm windows improved the energy efficiency of a daycare center with windows on the north elevation. | Photo courtesy of Larry Kinney, Synergistic Building Technologies. Interior storm windows improved the energy efficiency of a daycare center with windows on the north elevation. | Photo courtesy of Larry Kinney,

200

Optical cavity furnace for semiconductor wafer processing  

DOE Patents [OSTI]

An optical cavity furnace 10 having multiple optical energy sources 12 associated with an optical cavity 18 of the furnace. The multiple optical energy sources 12 may be lamps or other devices suitable for producing an appropriate level of optical energy. The optical cavity furnace 10 may also include one or more reflectors 14 and one or more walls 16 associated with the optical energy sources 12 such that the reflectors 14 and walls 16 define the optical cavity 18. The walls 16 may have any desired configuration or shape to enhance operation of the furnace as an optical cavity 18. The optical energy sources 12 may be positioned at any location with respect to the reflectors 14 and walls defining the optical cavity. The optical cavity furnace 10 may further include a semiconductor wafer transport system 22 for transporting one or more semiconductor wafers 20 through the optical cavity.

Sopori, Bhushan L.

2014-08-05T23:59:59.000Z

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Nitrogen Control in Electric Arc Furnace Steelmaking by Direct...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Nitrogen Control in Electric Arc Furnace Steelmaking by Direct Reduced Iron Fines Injection Nitrogen Control in Electric Arc Furnace Steelmaking by Direct Reduced Iron Fines...

202

High temperature corrosion of boiler waterwalls induced by chlorides and bromides. Part 1: Occurrence of the corrosive ash forming elements in a fluidised bed boiler co-firing solid recovered fuel  

Science Journals Connector (OSTI)

In waste fired boilers high temperature corrosion has often been attributed to zinc and lead chlorides. In addition, bromine induced high temperature corrosion has been earlier observed in a bubbling fluidised bed (BFB) boiler co-firing solid recovered fuel (SRF) with bark and wastewater sludge. In Part 1 of this work a measurement campaign was undertaken to determine the occurrence of Cl, Br, Zn and Pb in the fuel, in the combustion gases as well as in the deposits on the boiler waterwalls. It was observed that Cl, Br, Zn and Pb originate to a large extent from the SRF, they are vaporised in the furnace, and may form waterwall deposits. This, complemented by fluctuations between oxidising and reducing atmosphere resulted in rapid corrosion of the waterwall tubes. Concentrations of Cl, Br, Zn and Pb in the fuel, in the furnace vapours and in the deposits are reported in this work. As there is lack of published data on the bromine induced high temperature corrosion, laboratory scale corrosion tests were carried out to determine the relative corrosiveness of chlorine and bromine and these results will be reported in Part 2 of this work. Furthermore, the forms of Cl, Br, Zn and Pb in the combustion gases as well as in the waterwall deposits were estimated by means of thermodynamic equilibrium modelling and these results will also be discussed in Part 2.

P. Vainikka; D. Bankiewicz; A. Frantsi; J. Silvennoinen; J. Hannula; P. Yrjas; M. Hupa

2011-01-01T23:59:59.000Z

203

Condensing heat exchanger systems for residential/commercial furnaces and boilers. Phase IV  

SciTech Connect (OSTI)

The development of condensing heat exchanger systems is studied. In the work reported here, the focus is on the corrosion resistance of materials to condensate produced by gas-fired heating equipment, and the characterization of the spatial variation of condensation corrosivity in condensing heat exchangers.

Razgaitis, R.; Payer, J.H.; Talbert, S.G.; Hindin, B.; White, E.L.; Locklin, D.W.; Cudnik, R.A.; Stickford, G.H.

1985-10-01T23:59:59.000Z

204

Life-cycle cost analysis of energy efficiency design options for residential furnaces and boilers  

E-Print Network [OSTI]

energy conservation standard in terms of the Annual Fuel Utilization Efficiency (AFUE) descriptor at a minimum

Lutz, James; Lekov, Alex; Whitehead, Camilla Dunham; Chan, Peter; Meyers, Steve; McMahon, James

2004-01-01T23:59:59.000Z

205

Modeling energy consumption of residential furnaces and boilers in U.S. homes  

E-Print Network [OSTI]

energy conservation standard in terms of the Annual Fuel Utilization Efficiency (AFUE) descriptor at a minimum

Lutz, James; Dunham-Whitehead, Camilla; Lekov, Alex; McMahon, James

2004-01-01T23:59:59.000Z

206

Modeling energy consumption of residential furnaces and boilers in U.S. homes  

E-Print Network [OSTI]

ENERGY CONSUMPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ENERGY CONSUMPTION . . . . . . . . . . . . . . . . . . . . . . . . . .28 ENERGY CONSUMPTION

Lutz, James; Dunham-Whitehead, Camilla; Lekov, Alex; McMahon, James

2004-01-01T23:59:59.000Z

207

Evaluation of gas-reburning and low NO sub x burners on a wall fired boiler  

SciTech Connect (OSTI)

Low NO{sub x} burners operate on the principle of delayed mixing between the coal fuel and burner air, so that less NO{sub x} is formed. Gas reburning is a combustion modification technique that consists of firing 80--85 percent of the fuel corresponding to the total heat release in the lower furnace. Reduction of NO{sub x} to molecular nitrogen (N{sub 2}) is accomplished via the downstream injection of the remaining fuel requirement in the form of natural gas (which also reduces the total SO{sub x} emissions). In a third stage, burnout air is injected at the lower temperatures in the upper furnace to complete the combustion process without generating significant additional NO{sub x}. The specific goal of this project is to demonstrate NO{sub x} emission reductions of 75 percent or more as a result of combing Low NO{sub x} Burners and Gas Reburning on a utility boiler having the design characteristics mentioned above. A Host Site Agreement has been signed by EER and a utility company in the State of Colorado: Public Service Company of Colorado (Cherokee Unit No. 3, 172 MW{sub e}) front wall fired boiler near Denver.

Not Available

1992-01-15T23:59:59.000Z

208

A Methodology for Optimizing Boiler Operating Strategy  

E-Print Network [OSTI]

Among the many ways by which an energy manager can conserve energy is the establishment of a strategy for operation of fired boilers. In particular, he can effect total fuel consumption by his decision on how much on-line boiler surplus is required...

Jones, K. C.

1983-01-01T23:59:59.000Z

209

Intelligent emissions controller for substance injection in the post-primary combustion zone of fossil-fired boilers  

DOE Patents [OSTI]

The control of emissions from fossil-fired boilers wherein an injection of substances above the primary combustion zone employs multi-layer feedforward artificial neural networks for modeling static nonlinear relationships between the distribution of injected substances into the upper region of the furnace and the emissions exiting the furnace. Multivariable nonlinear constrained optimization algorithms use the mathematical expressions from the artificial neural networks to provide the optimal substance distribution that minimizes emission levels for a given total substance injection rate. Based upon the optimal operating conditions from the optimization algorithms, the incremental substance cost per unit of emissions reduction, and the open-market price per unit of emissions reduction, the intelligent emissions controller allows for the determination of whether it is more cost-effective to achieve additional increments in emission reduction through the injection of additional substance or through the purchase of emission credits on the open market. This is of particular interest to fossil-fired electrical power plant operators. The intelligent emission controller is particularly adapted for determining the economical control of such pollutants as oxides of nitrogen (NO.sub.x) and carbon monoxide (CO) emitted by fossil-fired boilers by the selective introduction of multiple inputs of substances (such as natural gas, ammonia, oil, water-oil emulsion, coal-water slurry and/or urea, and combinations of these substances) above the primary combustion zone of fossil-fired boilers.

Reifman, Jaques (Western Springs, IL); Feldman, Earl E. (Willowbrook, IL); Wei, Thomas Y. C. (Downers Grove, IL); Glickert, Roger W. (Pittsburgh, PA)

2003-01-01T23:59:59.000Z

210

Highly Insulating Windows - Fram  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Frames Frames Research performed at the Norwegian University of Science and Technology and LBNL has identified various highly insulating frame solutions. A report was released in 2007 describing some of these frames. This document reports the findings of a market and research review related to state-of-the-art highly insulating window frames. The market review focuses on window frames that satisfy the Passivhaus requirements (window U-value less or equal to 0.8 W/m2K ), while other examples are also given in order to show the variety of materials and solutions that may be used for constructing window frames with a low thermal transmittance (U-value). The market search shows that several combinations of materials are used in order to obtain window frames with a low U-value. The most common insulating material seems to be Polyurethane (PUR), which is used together with most of the common structural materials such as wood, aluminum, and PVC.

211

Advanced furnace air staging and burner modifications for ultra-low NOx firing systems  

SciTech Connect (OSTI)

Overfire air is an effective means to reduce NOx emissions from coal fired furnaces. The current range of overfire air usage on wall-fired boilers in the US is in the range of 10 to 20%. In most cases this is enough to achieve current Title IV NOx reduction requirements. Future applications are likely to go beyond 20% Overfire Air to reduce NOx further for lower investment and operating costs of SCR retrofits. Summer ozone reduction requires NOx emissions of 0.15 lb/MBtu. Currently, industry is exploring the conditions under which this goal is attainable. The paper discussed the approach to achieve ultra-low NOx emissions by using advanced furnace air staging. It describes the unique approach of redesigning the burner to maintain low NOx burner performance when the overfire air system is added or increased in capacity. The impact on furnace corrosion and unburned carbon losses are presented. A case study is used to show the effects of overfire air both on emissions and unburned carbon.

McCarthy, K.; Laux, S.; Grusha, J.

1999-07-01T23:59:59.000Z

212

METHANE de-NOX FOR UTILITY PC BOILERS  

SciTech Connect (OSTI)

The project seeks to develop and validate a new pulverized coal combustion system to reduce utility PC boiler NOx emissions to 0.15 lb per million Btu or less without post-combustion flue gas cleaning. Work during previous reporting periods completed the design, installation, shakedown and initial PRB coal testing of a 3-million Btu/h pilot system at BBP's Pilot-Scale Combustion Facility (PSCF) in Worcester, MA. Based on these results, modifications to the gas-fired preheat combustor and PC burner were defined, along with a modified testing plan and schedule. A revised subcontract was executed with BBP to reflect changes in the pilot testing program. Modeling activities were continued to develop and verify revised design approaches for both the Preheat gas combustor and PC burner. Reactivation of the pilot test system was then begun with BBP personnel. During the previous reporting period, reactivation of the pilot test system was completed with the modified Preheat gas combustor. Following shakedown of the modified gas combustor alone, a series of successful tests of the new combustor with PRB coal using the original PC burner were completed. NOx at the furnace exit was reduced significantly with the modified gas combustor, to as low as 150 ppm with only 36 ppm CO (both corrected to 3% O2). Concurrent with testing, GTI and BBP collaborated on development of two modified designs for the PC burner optimized to fire preheated char and pyrolysis products from the Preheat gas combustor. During the current reporting period, one of the two modified PC burner designs was fabricated and installed in the pilot test facility. Testing of the modified pilot system (modified gas combustor and modified PC burner) during the quarter included 38 tests with PRB coal. NOx reduction was significantly improved to levels as low as 60-100 ppmv with CO in the range of 35-112 ppmv without any furnace air staging.

Joseph Rabovitser; Bruce Bryan; Serguei Nester; Stan Wohadlo

2002-01-31T23:59:59.000Z

213

LBNL Windows & Daylighting Software -- WINDOW Documentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Vacuum Glazing Modeling Vacuum Glazing Modeling It is now possible to model vacuum glazing in WINDOW 7. The first step is to define a new vacuum "gap" in the "Gap Library" (formerly the Gas Library). Then that vacuum gap is used in a glazing system to calculate the thermal characteristics of the glazing system with a vacuum gap. Gap Library The Gas Library has been renamed the Gap Library. To define a vacuum gap, check the "Vacuum" checkbox (this is only available for single gases, not gas mixtures). When this box is checked, new input variables will appear, including the vacuum pressure, the specific heat ratio and molecular weight of the vacuum gas. It is also necessary to define a pillar system for the vacuum gap. Pillar Definition Double click the double arrow to the right of the Pillar Definition pulldown to define a new pillar system. Define the shape and dimensions of the pillar system.

214

LBNL Windows & Daylighting Software -- WINDOW Documentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 2 (7.2.29 -- December 29 2013) Release Notes Updated: 12/29/13 If you find bugs, or have comments about this version, please do not hesitate to send an email to WINDOWHelp@lbl.gov to report your findings. Getting feedback from users is how we improve the program. WINDOW 7.2.29 (December 29, 2013) Program Changes Glazing System Shading System Details For shading system in a Glazing System Library construction, the emittances, conductance and TIR are not displayed, as they are only available after a calculation has been completed. Perforated Screens An input value for "Effective Openness Factor" has been added to the Shading Layer Library for perforated screens. At a future date, we will update the program to calculate this value automatically.

215

LBNL Windows & Daylighting Software -- WINDOW Documentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Deflection Modeling Deflection Modeling It is now possible to model the effects of glass deflection in WINDOW 7. Glazing System Library The Glazing System Library is where the deflection modeling input values are entered. When the "Model Deflection" box is checked, a Deflection input box appears. When the Glazing System is calculated, two rows of results, one for the undeflected state and one for the deflected state, appear for Center of Glass Results, Temperature Data and Angular data. In addition, a Deflection tab appears, which shows the deflection of each glass layer and the resulting gap width for each gap. Glazing System Deflect Input There are two options for defining the deflection in a glazing system, by choosing from the "Input" pulldown list:

216

BEHAVIOUR OF BOILER STEEL SA-192 IN OXIDATION AND HOT CORROSION AT DIFFERENT TEMPERATURES  

E-Print Network [OSTI]

The major degradation mechanism occur due to oxidation and hot corrosion which is responsible for failure of boiler and gas turbine components. These failures occur because of the usage of wide range of fuels such as coal, oil at increased temperatures. In current investigation oxidation and hot corrosion performances of bare Boiler Steel SA-192 has been evaluated in air and with aggressive environment. For aggressive environment composition of sodium sulphate and vanadium pentaoxide have been mixed in proper ratio (Na2SO4+60%V2O5) to provide an experimental condition under cyclic conditions at an elevated temperatures of 850 0 C & 950 0 C. The kinetics of the corrosion is approximated by weight change measurements made after each cycle for total duration of 50 cycles. Each cycle consists of keeping the samples for 1 hour duration in Kanthol wire tube furnace at 850 0 C and 950 0 C followed by 20 minute cooling in ambient air. Weight change data has been taken after each cycle by digital electronic balance machine with an accuracy of 1 milligram. Graphs have been plotted between weight gains per surface area to number of cycles. Boiler Steel SA-192 has shown poor performance in oxidising and in hot corrosion environment as the temperature increased. It suffered from intensive spallation in the form of removal of scales.

Vinay Kumar Sahu; Jayant Singh; Mnnit Allahabad

217

Residential Windows and Window Coverings: A Detailed View of the Installed Base and User Behavior  

Broader source: Energy.gov [DOE]

Includes information about the installed base of residential windows and window coverings, and the operation of window coverings by households.

218

Retrofitted coal-fired firetube boiler and method employed therewith  

DOE Patents [OSTI]

A coal-fired firetube boiler and a method for converting a gas-fired firetube boiler to a coal-fired firetube boiler, the converted boiler including a plurality of combustion zones within the firetube and controlled stoichiometry within the combustion zones.

Wagoner, Charles L. (Tullahoma, TN); Foote, John P. (Tullahoma, TN)

1995-01-01T23:59:59.000Z

219

Retrofitted coal-fired firetube boiler and method employed therewith  

DOE Patents [OSTI]

A coal-fired firetube boiler and a method for converting a gas-fired firetube boiler to a coal-fired firetube boiler are disclosed. The converted boiler includes a plurality of combustion zones within the firetube and controlled stoichiometry within the combustion zones. 19 figs.

Wagoner, C.L.; Foote, J.P.

1995-07-04T23:59:59.000Z

220

Startup, Commissioning and Operation of Fenyi 100MW CFB Boiler  

Science Journals Connector (OSTI)

The first 100MW CFB boiler, designed by the Thermal Power Research ... burn out are used in the 100 MW CFB boiler. The results of the 100MW CFB boiler shows that the CFB boiler can run in 30% MCR and ... got afte...

Zhiwei Wang; Wugao Yu; Shi Bo

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Furnace Blower Performance Improvements- Building America Top Innovation  

Broader source: Energy.gov [DOE]

This Top Innovation profile describes Building America research into improving efficiency of furnace fan blowers.

222

Advancement of Electrochromic Windows  

E-Print Network [OSTI]

heat gain coefficient (SHGC) range of 0.42–0.09. Findingslow-e windows (Tv=0.42, SHGC=0.22) to serve as a referencewall for glare (Tv =0.05, SHGC=0.09) reduced average daily

2006-01-01T23:59:59.000Z

223

Thermally sprayed coatings for boiler protection  

SciTech Connect (OSTI)

FBC boilers are large, expensive installations which suffer enormously from wear caused by corrosion, aggravated by high temperatures. The exact type of wear experienced varies from one part of a boiler to another and is influenced by the overall design of the boiler and the type of fuel burnt in it. Boiler manufacturers and users face a difficult choice in selecting materials to fight these problems. Inexpensive and easily worked metals, unfortunately, offer little resistance to the types of wear experienced in boilers, while alloys which are resistant to erosion and corrosion are very costly as well as being difficult to form and join. This paper presents a number of ways in which these material losses and related costs in boiler systems can be reduced by application of thermally sprayed coatings which lead to significant increases in service life. The selection of the coating material and of the correct deposition process can, today, be based on the results of laboratory tests (elevated temperature corrosion and erosion), small scale in-situ test coatings and on full scale FBC boiler protection coating utilization. Practical examples are given of thermal spray coatings which have been successfully applied to different kinds of FBC boilers including those burning coal, waste (chemical, industrial, household) and wood chips. The paper describes the procedures for applying coatings to boiler components, the properties of the resulting coatings and how best to select coating materials for use in some specific wear and corrosion environmentals. In addition, future trends in the utilization of thermally sprayed coatings are discussed.

Gustafsson, S.; Steine, H.T. [Eutectic and Castolin, Lausanne (Switzerland); Ridgway, W.F. [Eutectic and Castolin, New York, NY (United States)

1995-12-31T23:59:59.000Z

224

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Welcome to the Efficient Windows Collaborative Welcome to the Efficient Windows Collaborative YOUR GATEWAY TO INFORMATION ON HOW TO CHOOSE ENERGY-EFFICIENT RESIDENTIAL WINDOWS 101 Efficient Windows Collaborative (EWC) members have made a commitment to manufacture and promote energy-efficient windows. This site provides unbiased information on the benefits of energy-efficient windows, descriptions of how they work, and recommendations for their selection and use. Selecting Windows for New Construction Window Selection Tool Selection Process Design Guidance Installation Selecting Replacement Windows Window Selection Tool Assessing Replacement Options Selection Process Design Guidance Installation Understanding Windows Benefits of Energy Efficient Windows Design Considerations How to Measure Performance Window Technologies

225

Sustainable Electric Arc Furnace Steel Production: GREENEAF  

Science Journals Connector (OSTI)

Generally speaking, in the electric furnace, coal (and consequently char) can be used as injected powder or charged into the basket. The syngas can be used for EAF burners.

Loris Bianco; Giulia Baracchini…

2013-01-01T23:59:59.000Z

226

Furnace Blower Performance Improvements - Building America Top...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

in preparation for cold weather, they may be unaware of how furnace blowers can impact HVAC efficiency. In fact, studies show that the most common blowers have efficiencies of...

227

Energy Assessment Protocol for Glass Furnaces  

E-Print Network [OSTI]

The Department of Energy funded development of a methodology that could be used by glass producers to increase furnace efficiency, and that could serve as a model for other energy-intensive industries. Accordingly, a team comprising PPG Industries...

Plodinec, M. J.; Kauffman, B. M.; Norton, O. P.; Richards, C.; Connors, J.; Wishnick, D.

2005-01-01T23:59:59.000Z

228

DOE Furnace Rule Ex Parte Communication  

Broader source: Energy.gov [DOE]

Philadelphia Gas Works (POW), the largest municipally-owned  gas utility in the United States, is concerned about the impact that a new furnace efficiency rule could have on POW, its customers, the...

229

Evaluation of Gas Reburning and Low-NOx Burners on a Wall-Fired Boiler; a DOE Assessment  

SciTech Connect (OSTI)

The results from the GR-LNB technology demonstrated by EER at Cherokee Station approached, but did not meet, the CCT project's performance objectives. Acceptable unit operability was achieved with both the GR and the LNB components. The gas reburning component of the process appears to be broadly applicable for retrofit NO{sub x} control to most utility boilers and, in particular, to wet-bottom cyclone boilers, which are high NO{sub x} emitters and are difficult to control (LNB technology is not applicable to cyclone boilers). GR-LNB can reduce NO{sub x} to mandated emissions levels under Title IV of the CAAA without significant, adverse boiler impacts. The GR-LNB process may be applicable to boilers significantly larger than the demonstration unit, provided there is adequate dispersion and mixing of injected natural gas. Major results of the demonstration project are summarized as follows: NO{sub x}-emissions reductions averaging 64% were achieved with 12.5% gas heat input in long-term tests on a 158-MWe (net) wall-fired unit. The target reduction level of 70% was achieved only on a short-term basis with higher gas consumption. The thermal performance of coal-fired boilers is not significantly affected by GR-LNB. Convective section steam temperatures can be controlled within acceptable limits. Thermal efficiency is decreased by a small amount (about 0.8%), because of increased dry gas loss and higher moisture in the flue gas as a result of the GR process. Furnace slagging and convective section fouling can be adequately controlled. Because of the higher hydrogen/carbon (H/C) ratio of natural gas compared with coal, use of the GR process results in a modest reduction in CO{sub 2} emissions. SO{sub 2} and particulate emissions are reduced in direct proportion to the fraction of heat supplied by natural gas.

National Energy Technology Laboratory

2001-02-28T23:59:59.000Z

230

Modelling of NO{sub x} reduction strategies applied to 350 MW(e) utility boilers  

SciTech Connect (OSTI)

A computational fluid dynamics model has been combined with a NO{sub x} chemistry post-processor to predict the formation and destruction of nitric oxide in three-dimensional furnaces burning pulverized fuel. The model considers the complex interaction of turbulent flow, heat transfer, combustion, and NO{sub x} reaction chemistry. Lagrangian particle dynamics are used to track burning pulverized coal particles through the computational cells. Fuel nitrogen is released in proportion to the burnout of the particle. A range of combustion NO{sub x} reduction strategies has been applied to two 350 MW(e) utility boilers burning different coals. A medium volatile bituminous coal is fired using low NO{sub x} burners in one furnace and a sub-bituminous coal is burnt using conventional swirl burners in a different furnace. The strategies include: burner out of service, overfire air, reduction in excess air, change in particle size, and fuel reburn. In general NO{sub x} predictions are better for the sub-bituminous coal than for the medium volatile bituminous coal. Typical NO{sub x} prediction errors are {+-} 10 percent.

Visona, S.P.; Singh, B. [AUSTA Electric, Brisbane (Australia); Stanmore, B.R. [Dept. of Chemical Engineering, Brisbane (Australia)

1997-07-01T23:59:59.000Z

231

Achieving New Source Performance Standards (NSPS) Emission Standards Through Integration of Low-NOx Burners with an Optimization Plan for Boiler Combustion  

SciTech Connect (OSTI)

The objective of this project was to demonstrate the use of an Integrated Combustion Optimization System to achieve NO{sub X} emission levels in the range of 0.15 to 0.22 lb/MMBtu while simultaneously enabling increased power output. The project plan consisted of the integration of low-NO{sub X} burners and advanced overfire air technology with various process measurement and control devices on the Holcomb Station Unit 1 boiler. The plan included the use of sophisticated neural networks or other artificial intelligence technologies and complex software to optimize several operating parameters, including NO{sub X} emissions, boiler efficiency, and CO emissions. The program was set up in three phases. In Phase I, the boiler was equipped with sensors that can be used to monitor furnace conditions and coal flow to permit improvements in boiler operation. In Phase II, the boiler was equipped with burner modifications designed to reduce NO{sub X} emissions and automated coal flow dampers to permit on-line fuel balancing. In Phase III, the boiler was to be equipped with an overfire air system to permit deep reductions in NO{sub X} emissions. Integration of the overfire air system with the improvements made in Phases I and II would permit optimization of boiler performance, output, and emissions. This report summarizes the overall results from Phases I and II of the project. A significant amount of data was collected from the combustion sensors, coal flow monitoring equipment, and other existing boiler instrumentation to monitor performance of the burner modifications and the coal flow balancing equipment.

Wayne Penrod

2006-12-31T23:59:59.000Z

232

Resource recovery waste heat boiler upgrade  

SciTech Connect (OSTI)

The waste heat boilers installed in a 360 TPD waste to energy plant were identified as the bottle neck for an effort to increase plant capacity. These boilers were successfully modified to accommodate the increase of plant capacity to 408 TPD, improve steam cycle performance and reduce boiler tube failures. The project demonstrated how engineering and operation can work together to identify problems and develop solutions that satisfy engineering, operation, and financial objectives. Plant checking and testing, design review and specification development, installation and operation results are presented.

Kuten, P.; McClanahan, D.E. [Fluor Daniel, Inc., Houston, TX (United States); Gehring, P.R.; Toto, M.L. [SRRI, Springfield, MA (United States); Davis, J.J. [Deltak, Minon, MN (United States)

1996-09-01T23:59:59.000Z

233

LBNL Windows & Daylighting Software -- WINDOW Documentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Release Notes Release Notes Updated: 11/07/11 History of COMFEN 3.1 Releases New Features Glazed Wall Assembly In addition to modeling individual windows, COMFEN now has the capability of modeling "Glazed Wall Assemblies" which allow you to specify the number of horizontal and vertical framing members, as well as their spacing, and the program automatically generates the facade. Click here for more details. Material Library COMFEN now has a Material Library, which can be used in the Wall Construction and Spandrel Libraries. See the User Manual for more details. Wall Library COMFEN now has a Wall Library which can be used to build up layers from the Material Library to define a wall. See the User Manual for more details. Spandrel Library COMFEN now has a Spandrel Library which can be used to build up layers from the Material Library to define a spandrel, including glass and glazing systems as the outer-most layers. See the User Manual for more details.

234

Energy Savings from Window Attachments  

Broader source: Energy.gov [DOE]

This study presents energy-modeling results for a large number of window combinations with window attachments in typical residential buildings and in varied climates throughout the United States.

235

The Window Strategy with Options  

E-Print Network [OSTI]

The window strategy is one of several marketing strategies using futures and options to establish a floor price and allow for upside price potential. It also reduces option premium costs. This publication discusses how the window strategy works...

McCorkle, Dean; Amosson, Stephen H.; Fausett, Marvin

1999-06-23T23:59:59.000Z

236

DOE Webcast: GTI Super Boiler Technology  

Broader source: Energy.gov (indexed) [DOE]

Webcast Webcast GTI Super Boiler Technology by Dennis Chojnacki, Senior Engineer by Curt Bermel, Business Development Mgr. R&D > November 20, 2008 November 20, 2008 2 November 20, 2008 2 WHO WE ARE Gas Technology Institute >Leading U.S. research, development, and training organization serving the natural gas industry and energy markets ─ An independent, 501c (3) not-for-profit Serving the Energy Industry Since 1941 > Over 1,000 patents > Nearly 500 products commercialized November 20, 2008 3 November 20, 2008 3 Super Boiler Background > U.S. industrial and commercial steam boilers ─ Consume over 6 quads of natural gas per year ─ Wide range of steam uses from process steam to space heating > Installed base of steam boilers ─ Largely over 30 years old

237

Stress corrosion cracking of power boiler drums  

Science Journals Connector (OSTI)

This paper deals with the study, analysis and technical diagnosis fundamentals concerning damage induced by stress corrosion cracking. The main repair and safe operation methods for power boiler drums are described; this work being based on plant experience.

Alecsandru Pavel; Alexandru Pelle; Alexandru Epure; Cornel Radulescu; Petric? Baciu; Alexandru Bogdan; Mihai Stefanescu

1991-01-01T23:59:59.000Z

238

SIMPLE, FULLY FEATURED BOILER LOOP MODELLING  

E-Print Network [OSTI]

The performance of hot water space heating systems for mild to warm temperate climates is dominated by the efficiency of boiler operation at low load (i.e. below 25 % of nameplate capacity). This efficiency is influenced by a number of effects that are poorly represented in common modelling approaches, including static thermal losses from the boiler and distribution system, changes in burner efficiency at different firing rates, thermal inertia in the boiler loop and the effects of cyclic operation. In this paper, a simple model that includes these loss mechanisms is developed. An example from an actual project is used to demonstrate that addressing the full range of low-load efficiency effects can increase predicted boiler gas consumption substantially relative to standard simulation approaches.

Erica Kenna; Paul Bannister

239

Boiler House and Power Station Chemistry  

Science Journals Connector (OSTI)

... and power stations". It provides a useful background of information on the properties and combustion of ... of coals, and on such subjects as the treatment of boiler feed water, types of oil ...

A. PARKER

1949-01-01T23:59:59.000Z

240

Clean Boiler Waterside Heat Transfer Surfaces  

SciTech Connect (OSTI)

This revised ITP tip sheet on cleaning boiler water-side heat transfer surfaces provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

Not Available

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Clean Boiler Waterside Heat Transfer Surfaces  

Broader source: Energy.gov [DOE]

This tip sheet on cleaning boiler water-side heat transfer surfaces provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

242

Method of regulating the amount of underfire air for combustion of wood fuels in spreader-stroke boilers  

DOE Patents [OSTI]

A method of metering underfire air for increasing efficiency and reducing particulate emissions from wood-fire, spreader-stoker boilers is disclosed. A portion of the combustion air, approximately one pound of air per pound of wood, is fed through the grate into the fuel bed, while the remainder of the combustion air is distributed above the fuel in the furnace, and the fuel bed is maintained at a depth sufficient to consume all oxygen admitted under fire and to insure a continuous layer of fresh fuel thereover to entrap charred particles inside the fuel bed.

Tuttle, Kenneth L. (Federal Way, WA)

1980-01-01T23:59:59.000Z

243

Nanolens Window Coatings for Daylighting  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Nanolens Window Coatings for Nanolens Window Coatings for Daylighting Kyle J. Alvine Pacific Northwest National Laboratory Kyle.alvine@pnnl.gov / (509) - 372 - 4475 April 4 th , 2013 Demonstration of the effect To develop a novel, low-cost window coating to double daylight penetration to offset lighting energy use 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: PNNL is developing a novel, low-cost window coating to redirect daylight deeper into buildings to significantly offset lighting energy.

244

Nanolens Window Coatings for Daylighting  

Broader source: Energy.gov (indexed) [DOE]

Nanolens Window Coatings for Nanolens Window Coatings for Daylighting Kyle J. Alvine Pacific Northwest National Laboratory Kyle.alvine@pnnl.gov / (509) - 372 - 4475 April 4 th , 2013 Demonstration of the effect To develop a novel, low-cost window coating to double daylight penetration to offset lighting energy use 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: PNNL is developing a novel, low-cost window coating to redirect daylight deeper into buildings to significantly offset lighting energy.

245

Windows Bitmap .bmp or .dib  

E-Print Network [OSTI]

platforms' GDI subsystem, where the specific format used is the Windows and OS/2 bitmap file format, usually

Gribaudo, Marco

246

THERMAL PERFORMANCE OF INSULATING WINDOW SYSTEMS  

E-Print Network [OSTI]

these windows incorporating hear mirror films are staticS. , "Thin Film Coatings for Energy Efficient Windows", LBLglazed windows with single and double plastic film inserts

Selkowitz, Stephen E.

2011-01-01T23:59:59.000Z

247

AN ENERGY EFFICIENT WINDOW SYSTEM FINAL REPORT.  

E-Print Network [OSTI]

for a variety of glass window films and so provides thetesting metallized mylar window films. They involve exposingconsumers to install window film products. The rigid sheet

Authors, Various

2011-01-01T23:59:59.000Z

248

Performance Criteria for Residential Zero Energy Windows  

E-Print Network [OSTI]

neutral energy impact of windows (energy consumption of buildingneutral energy impact of windows (energy consumption of buildingneutral energy impact of windows (energy consumption of building

Arasteh, Dariush; Goudey, Howdy; Huang, Joe; Kohler, Christian; Mitchell, Robin

2006-01-01T23:59:59.000Z

249

A Review of Electrochromic Window Performance Factors  

E-Print Network [OSTI]

ratio of 0.30. The electrochromic windows were controlled toProceedings. A Review of Electrochromic Window Performanceand economic benefits of electrochromic smart windows,"

Selkowitz Ed, S.E.

2010-01-01T23:59:59.000Z

250

Windows, Doors, & Skylights | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Windows, Doors, & Skylights Windows, Doors, & Skylights Windows, Doors, & Skylights Windows affect home aesthetics as well as energy use. Learn more about energy-efficient windows. Windows affect home aesthetics as well as energy use. Learn more about energy-efficient windows. Energy-efficient windows, doors, and skylights-also known as fenestration-can help lower a home's heating, cooling, and lighting costs. Learn about the energy performance ratings to consider when selecting windows, doors, and skylights, and how to maximize their energy efficiency in your home. Featured Window Types A wood-frame window with insulated window glazing. | Photo courtesy of ©iStockphoto/chandlerphoto

251

21 - Life cycle assessment (LCA) of windows and window materials  

Science Journals Connector (OSTI)

Abstract: Windows are a significant component in sustainable buildings in both the impacts caused by their material life cycles and by their influence on the performance of a building over its service life. Life cycle assessment (LCA) studies have compared the impacts of different framing materials with mixed results. LCA has also been used to estimate the environmental payback of higher manufacturing impacts from producing better performing windows. Future sustainable window selection should make use of standardized LCA data for windows and utilize advanced technologies to optimize window performance.

J. Salazar

2014-01-01T23:59:59.000Z

252

Windows Forensic Analysis DVD Toolkit  

Science Journals Connector (OSTI)

The only book available on the market that addresses and discusses in-depth forensic analysis of Windows systems. Windows Forensic Analysis DVD Toolkit takes the reader to a whole new, undiscovered level of forensic analysis for Windows systems, providing ... Keywords: Computer Science, Security

Harlan Carvey

2007-04-01T23:59:59.000Z

253

Variable firing rate power burner for high efficiency gas furnaces. Final report  

SciTech Connect (OSTI)

One method for increasing the efficiency of residential furnaces and boilers is to retrofit a burner capable of firing rate (FR) modulation. While maximum FR is still attainable, the average FR is significantly lower, resulting in more effective heat exchanger performance. Equally important is the capability for continuous firing at a very low rate (simmering) which eliminates off-cycle loss, a heavy contributor to inefficiency. Additional performance can be gained by reducing the excess air required by a burner. Based on its previous experience, Foster-Miller Associates, Inc. has designed and tested a low excess air (about 15%) variable firing rate (VFR) burner. The theory of operation and the construction of the test burner are described. Test results are given along with a conclusion/recommendation. A Phase II plan is outlined which suggests methods and steps for fabrication and field testing of a number of prototype units.

Fuller, H.H.; Demler, R.L.; Poulin, E.

1980-02-01T23:59:59.000Z

254

Federal Energy Management Program: FEMP Technology Brief: Boiler Combustion  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

FEMP Technology FEMP Technology Brief: Boiler Combustion Control and Monitoring System to someone by E-mail Share Federal Energy Management Program: FEMP Technology Brief: Boiler Combustion Control and Monitoring System on Facebook Tweet about Federal Energy Management Program: FEMP Technology Brief: Boiler Combustion Control and Monitoring System on Twitter Bookmark Federal Energy Management Program: FEMP Technology Brief: Boiler Combustion Control and Monitoring System on Google Bookmark Federal Energy Management Program: FEMP Technology Brief: Boiler Combustion Control and Monitoring System on Delicious Rank Federal Energy Management Program: FEMP Technology Brief: Boiler Combustion Control and Monitoring System on Digg Find More places to share Federal Energy Management Program: FEMP

255

Atmospheric Pressure Deposition for Electrochromic Windows |...  

Broader source: Energy.gov (indexed) [DOE]

Atmospheric Pressure Deposition for Electrochromic Windows Atmospheric Pressure Deposition for Electrochromic Windows Emerging Technologies Project for the 2013 Building...

256

Air Leakage of Furnaces and Air Handlers  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Air Leakage of Furnaces and Air Handlers Air Leakage of Furnaces and Air Handlers Title Air Leakage of Furnaces and Air Handlers Publication Type Journal Article LBNL Report Number LBNL-5553E Year of Publication 2010 Authors Walker, Iain S., Mile Lubliner, Darryl J. Dickerhoff, and William W. Delp Journal 2010 ACEEE Summer Study on Energy Efficiency in Buildings The Climate for efficiency is now Date Published 08/2010 Abstract In recent years, great strides have been made in reducing air leakage in residential and to a lesser extent small commercial forced air duct systems. Several authorities have introduced low leakage limits for thermal distribution systems; for example, the State of California Energy Code for Buildings gives credit for systems that leak less than 6% of the total air flow at 25 Pa.

257

Cogeneration from glass furnace waste heat recovery  

SciTech Connect (OSTI)

In glass manufacturing 70% of the total energy utilized is consumed in the melting process. Three basic furnaces are in use: regenerative, recuperative, and direct fired design. The present paper focuses on secondary heat recovery from regenerative furnaces. A diagram of a typical regenerative furnace is given. Three recovery bottoming cycles were evaluated as part of a comparative systems analysis: steam Rankine Cycle (SRC), Organic Rankine Cycle (ORC), and pressurized Brayton cycle. Each cycle is defined and schematicized. The net power capabilities of the three different systems are summarized. Cost comparisons and payback period comparisons are made. Organic Rankine cycle provides the best opportunity for cogeneration for all the flue gas mass flow rates considered. With high temperatures, the Brayton cycle has the shortest payback period potential, but site-specific economics need to be considered.

Hnat, J.G.; Cutting, J.C.; Patten, J.S.

1982-06-01T23:59:59.000Z

258

Segmented ceramic liner for induction furnaces  

DOE Patents [OSTI]

A non-fibrous ceramic liner for induction furnaces is provided by vertically stackable ring-shaped liner segments made of ceramic material in a light-weight cellular form. The liner segments can each be fabricated as a single unit or from a plurality of arcuate segments joined together by an interlocking mechanism. Also, the liner segments can be formed of a single ceramic material or can be constructed of multiple concentric layers with the layers being of different ceramic materials and/or cellular forms. Thermomechanically damaged liner segments are selectively replaceable in the furnace. 5 figs.

Gorin, A.H.; Holcombe, C.E.

1994-07-26T23:59:59.000Z

259

Measure Guideline: High Efficiency Natural Gas Furnaces  

SciTech Connect (OSTI)

This Measure Guideline covers installation of high-efficiency gas furnaces. Topics covered include when to install a high-efficiency gas furnace as a retrofit measure, how to identify and address risks, and the steps to be used in the selection and installation process. The guideline is written for Building America practitioners and HVAC contractors and installers. It includes a compilation of information provided by manufacturers, researchers, and the Department of Energy as well as recent research results from the Partnership for Advanced Residential Retrofit (PARR) Building America team.

Brand, L.; Rose, W.

2012-10-01T23:59:59.000Z

260

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Tools Tools Looking for windows for a new home? Use the Window Selection Tool to compare annual energy performance for windows in new construction. Window Selection Tool Looking for replacement windows? Use the Window Selection Tool to compare annual energy performance for replacement windows. Window Selection Tool Window Selection Tool Use the Window Selection Tool for new or replacement windows to compare the annual energy performance of different window types and design conditions for a typical house. Find manufacturers who offer windows and skylights within the generic results shown. Learn more about manufacturers' specific product options. Use the Window Selection Tool to: Compare how various window or skylight types affect estimated energy cost for a typical house in your location.

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Development and Validation of a 3-Dimensional CFB Furnace Model  

Science Journals Connector (OSTI)

At Foster Wheeler, a three-dimensional CFB furnace model is essential part of knowledge development of CFB furnace process regarding solid mixing, combustion, ... Analyses of field-test results in industrial-scal...

Arl Vepsäläinen; Karl Myöhänen…

2010-01-01T23:59:59.000Z

262

Residential Two-Stage Gas Furnaces - Do They Save Energy?  

E-Print Network [OSTI]

of two-stage furnaces with BPM motors provides electricityof two-stage furnaces with BPM motors provides electricityPSC) and brushless permanent magnet (BPM) 1 . PSC motors are

Lekov, Alex; Franco, Victor; Lutz, James

2006-01-01T23:59:59.000Z

263

Design and fabrication of a tin-sulfide annealing furnace  

E-Print Network [OSTI]

A furnace was designed and its heat transfer properties were analyzed for use in annealing thin-film tins-ulfide solar cells. Tin sulfide has been explored as an earth abundant solar cell material, and the furnace was ...

Lewis, Raymond (Raymond A.)

2011-01-01T23:59:59.000Z

264

DOE Publishes Final Rule for Residential Furnace Fan Test Procedure...  

Office of Environmental Management (EM)

DOE Publishes Final Rule for Residential Furnace Fan Test Procedure DOE Publishes Final Rule for Residential Furnace Fan Test Procedure January 3, 2014 - 12:00am Addthis The...

265

Furnace Blower Electricity: National and Regional Savings Potential  

E-Print Network [OSTI]

Solar Energy Center ABSTRACT Currently, total electricity consumption of furnacesFurnace Blower Electricity: National and Regional Savings Potential Victor Franco, James Lutz, Alex Lekov, and Lixing Gu (Florida Solar

Franco, Victor; Florida Solar Energy Center

2008-01-01T23:59:59.000Z

266

Simulation of Combustion and Thermal Flow in an Industrial Boiler  

E-Print Network [OSTI]

Industrial boilers that produce steam or electric power represent a crucial facility for overall plant operations. To make the boiler more efficient, less emission (cleaner) and less prone to tube rupture problems, it is important to understand...

Saripalli, R.; Wang, T.; Day, B.

2005-01-01T23:59:59.000Z

267

EECBG Success Story: Biomass Boiler to Heat Oregon School | Department...  

Energy Savers [EERE]

EECBG Success Story: Biomass Boiler to Heat Oregon School EECBG Success Story: Biomass Boiler to Heat Oregon School April 26, 2011 - 3:56pm Addthis Oregon Governor Kulongoski...

268

WINDOW 5 Glass Library Update  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

WINDOW 6 or 7 Glass Library Update WINDOW 6 or 7 Glass Library Update Last update:12/09/13 07:26 PM Automatic IGDB Update Feature in WINDOW 6 and 7 The latest versions of WINDOW 6 and 7 have an automatic IGDB database update function in the Glass Library. When you first open the program, it checks to see if there is an IGDB version later than what you already have installed, and will notify you if there is an update. Then you can download and install the IGDB database, and click on the Update IGDB button in the Glass Library in order to start the automatic update. For older versions of WINDOW 6 and 7 without the automatic IGDB update function bullet How to Check the Current WINDOW5 IGDB Version bullet Updating the Glass Library bullet Problem Updating the Glass Library bullet Discontinued Records or Reused NFRC IDs

269

Residential Two-Stage Gas Furnaces - Do They Save Energy?  

E-Print Network [OSTI]

total fuel and electricity consumption under laboratoryto decrease the electricity consumption of furnaces, mainlytotal fuel and electricity consumption under laboratory

Lekov, Alex; Franco, Victor; Lutz, James

2006-01-01T23:59:59.000Z

270

DOE Publishes Final Rule for Residential Furnace Fan Test Procedure  

Broader source: Energy.gov [DOE]

The Department of Energy (DOE) has published a final rule regarding test procedures for residential furnace fans.

271

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Selection Process for Replacement Windows Selection Process for Replacement Windows What are the benefits of energy-efficient windows? Energy & Cost Savings Improved Comfort Less Condensation Increased Light & View Reduced Fading Lower HVAC Costs How is window performance measured? U-factor Solar Heat Gain Coefficient Visible Transmittance Air Leakage Condensation Resistance Are there financing and incentive programs? Overview of Utility and State Programs Building Codes Energy Rating Programs 1. Assess Your Existing Windows Assess whether your windows should be repaired, retrofitted, or replaced. While most new windows have labels indicating their energy properties, such information is not often available for existing windows. Download Window Energy Efficiency Checklist for assistance. Window Replacement

272

Direct contact, binary fluid geothermal boiler  

DOE Patents [OSTI]

Energy is extracted from geothermal brines by direct contact with a working fluid such as isobutane which is immiscible with the brine in a geothermal boiler. The geothermal boiler provides a distributor arrangement which efficiently contacts geothermal brine with the isobutane in order to prevent the entrainment of geothermal brine in the isobutane vapor which is directed to a turbine. Accordingly the problem of brine carry-over through the turbine causes corrosion and scaling thereof is eliminated. Additionally the heat exchanger includes straightening vanes for preventing startup and other temporary fluctuations in the transitional zone of the boiler from causing brine carryover into the turbine. Also a screen is provided in the heat exchanger to coalesce the working fluid and to assist in defining the location of the transitional zone where the geothermal brine and the isobutane are initially mixed.

Rapier, Pascal M. (Richmond, CA)

1982-01-01T23:59:59.000Z

273

Waste Heat Recovery – Submerged Arc Furnaces (SAF)  

E-Print Network [OSTI]

designed consumes power and fuel that yields an energy efficiency of approximately 40% (Total Btu’s required to reduce to elemental form/ Btu Input). The vast majority of heat is lost to the atmosphere or cooling water system. The furnaces can be modified...

O'Brien, T.

2008-01-01T23:59:59.000Z

274

Covered Product Category: Residential Gas Furnaces  

Broader source: Energy.gov [DOE]

FEMP provides acquisition guidance across a variety of product categories, including residential gas furnaces, which are an ENERGY STAR®-qualified product category. Federal laws and requirements mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law.

275

Density-Enthalpy Phase Diagram 0D Boiler Simulation  

E-Print Network [OSTI]

Density-Enthalpy Phase Diagram 0D Boiler Simulation Finite Element Method Further Research Finite Transitions #12;Density-Enthalpy Phase Diagram 0D Boiler Simulation Finite Element Method Further Research;Density-Enthalpy Phase Diagram 0D Boiler Simulation Finite Element Method Further Research Goal

Vuik, Kees

276

Using HYTECH to Synthesize Control Parameters for a Steam Boiler ?;??  

E-Print Network [OSTI]

Using HYTECH to Synthesize Control Parameters for a Steam Boiler ?;?? Thomas A. Henzinger 1 Howard model a steam­boiler control system using hybrid au­ tomata. We provide two abstracted linear models of the nonlinear be­ havior of the boiler. For each model, we define and verify a controller that maintains

Henzinger, Thomas A.

277

An Object-Oriented Algebraic Steam-Boiler Control Specification  

E-Print Network [OSTI]

An Object-Oriented Algebraic Steam-Boiler Control Specification Peter Csaba ()lveczky, Poland Abstract. In this paper an object-oriented algebraic solution of the steam-boiler specification Introduction The steam-boiler control specification problem has been proposed as a challenge for different

Ã?lveczky, Peter Csaba

278

Streams of Steam The Steam Boiler Specification Case Study  

E-Print Network [OSTI]

Streams of Steam ­ The Steam Boiler Specification Case Study Manfred Broy, Franz Regensburger-tuned con- cepts of FOCUS by its application of the requirements specification of a steam boiler, see [Abr96-studies. In this context, applying FOCUS to the steam boiler case study ([Abr96]) led us to a couple of questions re- #12

279

Using HYTECH to Synthesize Control Parameters for a Steam Boiler? ??  

E-Print Network [OSTI]

Using HYTECH to Synthesize Control Parameters for a Steam Boiler? ?? Thomas A. Henzinger1 Howard model a steam-boiler control system using hybrid au- tomata. We provide two abstracted linear models of the nonlinear be- havior of the boiler. For each model, we de ne and verify a controller that maintains the safe

Henzinger, Thomas A.

280

Waterside Stress Assisted Corrosion (SAC) of Boiler Tubes  

E-Print Network [OSTI]

Waterside Stress Assisted Corrosion (SAC) of Boiler Tubes School of Materials Science Boiler Areas Susceptible to SAC · Generally SAC initiates near weld joints on cold side of tubes · SAC cracks are difficult to detect inaccessibility · Failures Detected at Various Locations in Boilers

Das, Suman

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Nanotube Boiler 1 Abstract--Controlled copper evaporation at attogram  

E-Print Network [OSTI]

Nanotube Boiler 1 Abstract-- Controlled copper evaporation at attogram level from individual carbon nanotube (CNT) vessels, which we call nanotube boilers, is investigated experimentally, and ionization in these CNT boilers, which can serve as sources for mass transport and deposition in nanofluidic

Paris-Sud XI, Université de

282

FAQs Manhattanville Campus Central Energy Plant Boiler Stacks  

E-Print Network [OSTI]

FAQs Manhattanville Campus Central Energy Plant Boiler Stacks Installation Frequently Asked Questions What is happening? Columbia University is installing two (2) boiler stacks on top of the Jerome L, a below-grade facility which will consist four (4) 45,000 lbs/hr steam boilers and related equipment

Kim, Philip

283

Steam boiler control speci cation problem: A TLA solution  

E-Print Network [OSTI]

Steam boiler control speci cation problem: A TLA solution Frank Le ke and Stephan Merz Institut fur of the state of the steam boiler, detect failures, and model message transmission. We give a more detailed between the physi- cal state of the steam boiler and the model maintained by the controller and discuss

284

Steam boiler control specification problem: A TLA solution  

E-Print Network [OSTI]

Steam boiler control specification problem: A TLA solution Frank Le�ke and Stephan Merz Institut f of the state of the steam boiler, detect failures, and model message transmission. We give a more detailed between the physi­ cal state of the steam boiler and the model maintained by the controller and discuss

Merz, Stephan

285

1 | P a g e Boiler Gold Rush  

E-Print Network [OSTI]

1 | P a g e Boiler Gold Rush VISION STATEMENT The vision of BGR is twofold: first, help all new by participating in the premiere orientation program in the nation, Boiler Gold Rush. Second, enhance upper leaders for the betterment of the university. PROGRAM GOALS Boiler Gold Rush will provide the following

Ginzel, Matthew

286

An Object-Oriented Algebraic Steam-Boiler Control Specification  

E-Print Network [OSTI]

An Object-Oriented Algebraic Steam-Boiler Control Specification.In this paper an object-oriented algebraic solution of the steam-boiler specification problem is presented computations cannot happen. 1 Introduction The steam-boiler control specification problem has been

Ã?lveczky, Peter Csaba

287

Guide for the Extension of Boiler Internal Inspections  

E-Print Network [OSTI]

Under T.C.A. §68-122-110(a), each boiler used or proposed to be used within this state, except boilers exempt in §68-122-105, shall be thoroughly inspected as to their construction, installation, condition and operation as follows: (1) Power boilers shall be inspected annually both internally and externally while not under pressure, and

Tennessee Board; Boiler Rules

288

Pre-Inspection Checklist for High Pressure Boilers  

E-Print Network [OSTI]

Notice: This checklist reflects the most common violations our field inspectors encounter when performing an inspection on a high-pressure steam boiler installation. It’s suggested that boiler industry personnel have access to a current set of applicable codebooks/jurisdictional laws. Such as: Section I of the ASME Boiler Code:

unknown authors

289

A new blowdown compensation scheme for boiler leak detection  

E-Print Network [OSTI]

considers the blowdown effect in industrial boiler operation. This adds to the efficiency of recent advances tubes. In utility boilers, early de- tection of leaks is primarily a financial issue. High velocityA new blowdown compensation scheme for boiler leak detection A. M. Pertew ,1 X. Sun ,1 R. Kent

Marquez, Horacio J.

290

Project Recap Humanitarian Engineering Biodiesel Boiler System for Steam Generator  

E-Print Network [OSTI]

Project Recap Humanitarian Engineering ­ Biodiesel Boiler System for Steam Generator Currently 70 biodiesel boiler system to drive a steam engine generator. This system is to provide electricity the customer needs, a boiler fueled by biodiesel and outputting to a steam engine was decided upon. The system

Demirel, Melik C.

291

Assessment of Energy Impact of Window Technologies for Commercial Buildings  

E-Print Network [OSTI]

chiller, and one gas-fired hot water boiler. The chillerhas a COP of 4.9 and the boiler has an efficiency of 80%.capacity (Ton) the design boiler capacity (MMBH, million

Hong, Tianzhen

2014-01-01T23:59:59.000Z

292

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Replacement Windows for Existing Homes Homes Replacement Windows for Existing Homes Homes Window Selection Tool Use the Window Selection Tool for existing homes (replacement windows) to compare performance of 20 different window types in your location. The Window Selection Tool will take you through a series of design conditions pertaining to your design and location. It is a step-by-step decision-making tool to help determine the most energy efficient window for your house. Window Selection Tool Assessing Options This section provides guidance the options available to improve the performance of your existing windows or to replace them. You can assess whether to repair, retrofit or replace your existing windows. Window Selection Process This section provides step-by-step guidance on the window selection process for replacement windows including issues of code, energy, durability, and installation.

293

BOILER BLOW-DOWN FLASH RECOVERY  

E-Print Network [OSTI]

Malelane’s boiler blow-down flash, which was previously rejected to atmosphere, is now recovered into the turbo-alternator exhaust steam range and used for process heating duty. Various flash vapour recovery options have been evaluated for operability, maintainability and cost effectiveness. The design considerations for the blow-down vessel and the valve and piping configuration, which resulted from a Hazop Study, are explained. The recovery of 1.6 tons per hour of boiler blowdown flash equates to R260 000 per annum in coal savings.

I Singh; F Weyers

294

Circulating Fluidized Bed Combustion Boiler Project  

E-Print Network [OSTI]

or turndown so we delayed consideration of installation of a FBC boil r. CIRCULATING FBC In early 1980 we became aware of the work by the Ahlstrom Company of Helsinki, Finland in the development of the circulating FBC boiler design. The PYROFLOW... layer is a lightweight insulating refractory. In 1979, Ahlstrom started up a 45,000 pound per hour PYROFLOW unIt at Pihlava, Finland. In 1981, 200,000 pound per hour boiler was started up 1 Kauttua, Finland as le b se load steam supply for paper...

Farbstein, S. B.; Moreland, T.

1984-01-01T23:59:59.000Z

295

Evaluation of Gas Reburning and Low N0x Burners on a Wall Fired Boiler  

SciTech Connect (OSTI)

Under the U.S. Department of Energy's Clean Coal Technology Program (Round 3), a project was completed to demonstrate control of boiler NOX emissions and to a lesser degree, due to coal replacement, SO2 emissions. The project involved combining Gas Reburning with Low NOX Burners (GR-LNB) on a coal-fired electric utility boiler to determine if high levels of NO, reduction (70VO) could be achieved. Sponsors of the project included the U.S. Depatiment of Energy, the Gas Research Institute, Public Service Company of Colorado, Colorado Interstate Gas, Electric Power Research Institute, and the Energy and Environmental Research Corporation. The GR-LNB demonstration was petformed on Public Service Company of Colorado's (PSCO) Cherokee Unit #3, located in Denver, Colorado. This unit is a 172 MW~ wall-fired boiler that uses Colorado bituminous, low-sulfur coal. It had a baseline NO, emission level of 0.73 lb/1 OG Btu using conventional burners. Low NOX burners are designed to yield lower NOX emissions than conventional burners. However, the NOX control achieved with this technique is limited to 30-50Y0. Also, with LNBs, CO emissions can increase to above acceptable standards. Gas Reburning (GR) is designed to reduce NO, in the flue gas by staged fuel combustion. This technology involves the introduction of' natural gas into the hot furnace flue gas stream. When combined, GR and LNBs minimize NOX emissions and maintain acceptable levels of CO emissions. A comprehensive test program was completed, operating over a wide range of boiler conditions. Over 4,000 hours of operation were achieved, providing substantial data. Measurements were taken to quantify reductions in NOX emissions, the impact on boiler equipment and operability and factors influencing costs. The GR-LNB technology achieved good NO, emission reductions and the goals of the project were achieved. Although the performance of the low NOX burners (supplied by others) was less than expected, a NOX reduction of 65% was achieved at an average gas heat input of 18%. The performance goal of 70/40 reduction was met on many test runs, but at a higher reburn gas heat input. S02 emissions, based on coal replacement, were reduced by 18%.

None

1998-07-01T23:59:59.000Z

296

A summary of SNCR applications to two coal-fired wet bottom boilers  

SciTech Connect (OSTI)

In response to NO{sub x} reductions mandated under Title I of the 1990 Clean Air Act Amendments (CAAA), Public Service Electric & Gas and Atlantic Electric of New Jersey evaluated Selective Non-Catalytic Reduction (SNCR) for NO{sub x} control under separate programs at Mercer Station and B.L. England Station, respectively. Mercer Station is comprised of twin 321 MW Foster Wheeler coal-fired wet bottom boilers, with natural gas capability up to 100% load. B.L. England Station has three units, two of which are cyclone boilers of 136 MW and 163 MW. These furnace designs are of particular interest in that nominally 23,000 MW of cyclone boiler capacity and 6,900 MW of wall- or turbo-fired wet bottom boiler capacity will be faced with NO{sub x} reductions to be mandated under Title IV - Phase II for Group II boilers. Both stations evaluated Nalco Fuel Tech`s SNCR system using a portable test skid, with urea as the reducing chemical. The Mercer Unit 2 demonstration was performed with a low sulfur coal (nominally 0.8%), while the B.L. England Unit 1 demonstration utilized a medium sulfur coal (nominally 2.4%), and also re-injects fly ash back into the cyclones for ultimate collection and removal as slag. To address concerns over potential Ljungstrom air heater fouling, due to reactions between ammonia and SO{sub 3} in the air heater, and fly ash salability at Mercer Station, both sites targeted no greater than 5-10 ppmv ammonia emissions at the economizer exit. At Mercer Unit 2, air heater fouling was only experienced during system start-up when the ammonia emissions at the economizer exit were estimated at levels approaching 60 ppmv. B.L. England Unit 1, however, experienced frequent fouling of the air heater. NO{sub x} reductions achieved at both sites ranged between 30%-40% from nominal baseline NO{sub x} levels of 1.1-1.6 lb/MMBtu. Each site is currently undergoing installation of commercial SNCR systems.

Himes, R.; Hubbard, D.; West, Z. [Carnot, Tustin, CA (United States)] [and others

1996-01-01T23:59:59.000Z

297

METHANE de-NOX FOR UTILITY PC BOILERS  

SciTech Connect (OSTI)

The project seeks to develop and validate a new pulverized coal combustion system to reduce utility PC boiler NO{sub x} emissions to 0.15 lb per million Btu or less without post-combustion flue gas cleaning. Work during previous reporting periods completed the design, installation, shakedown and initial PRB coal testing of a 3-million Btu/h pilot system at BBP's Pilot-Scale Combustion Facility (PSCF) in Worcester, MA. Based on these results, modifications to the gas-fired preheat combustor and PC burner were defined, along with a modified testing plan and schedule. A revised subcontract was executed with BBP to reflect changes in the pilot testing program. Modeling activities were continued to develop and verify revised design approaches for both the Preheat gas combustor and PC burner. Reactivation of the pilot test system was then begun with BBP personnel. During the current reporting period, reactivation of the pilot test system was completed with the modified Preheat gas combustor. Following shakedown of the modified gas combustor alone, a series of successful tests of the new combustor with PRB coal using the original PC burner were completed. NO{sub x} at the furnace exit was reduced significantly with the modified gas combustor, to as low as 150 ppm with only 36 ppm CO (both corrected to 3% O{sub 2}). Concurrent with testing, GTI and BBP collaborated on development of two modified designs for the PC burner optimized to fire preheated char and pyrolysis products from the Preheat gas combustor.

Joseph Rabovitser; Bruce Bryan; Serguei Nester; Stan Wohadlo

2002-10-29T23:59:59.000Z

298

Bromine as an ash forming element in a fluidised bed boiler combusting solid recovered fuel  

Science Journals Connector (OSTI)

Plastic materials are the main sources of chlorine in solid recovered fuels (SRF). Chlorine is attributed to be the main initiator of slagging, fouling and corrosion in biomass and waste combustion as it lowers the melting point of ash forming matter and reacts chemically with the heat transfer surface steels. SRF may also contain sources of bromine in the form of brominated flame retardants (BFRs) applied in many plastics and textiles. Results presented in this paper from an experimental campaign at an 80 MWth bubbling fluidised bed (BFB) boiler show that bromine is behaving in a similar manner as chlorine: bromine was found at the corrosion front in boiler membrane wall tubes, and as water soluble salts in aerosol samples collected from the furnace and electrostatic precipitator (ESP) ash. It is evident from these results and the data in the literature that most of the salts of bromine are, by both their fate and physical and chemical properties, similar to those of chlorine. It can be concluded that it if there is a source of bromine in the fuel corrosive high vapour pressure bromides can be formed analogously to chlorides.

Pasi Vainikka; Sonja Enestam; Jaani Silvennoinen; Raili Taipale; Patrik Yrjas; Ari Frantsi; Janne Hannula; Mikko Hupa

2011-01-01T23:59:59.000Z

299

A window on urban sustainability  

SciTech Connect (OSTI)

Sustainable urban development requires the integration of environmental interests in urban planning. Although various methods of environmental assessment have been developed, plan outcomes are often disappointing due to the complex nature of decision-making in urban planning, which takes place in multiple arenas within multiple policy networks involving diverse stakeholders. We argue that the concept of ‘decision windows’ can structure this seemingly chaotic chain of interrelated decisions. First, explicitly considering the dynamics of the decision-making process, we further conceptualized decision windows as moments in an intricate web of substantively connected deliberative processes where issues are reframed within a decision-making arena, and interests may be linked within and across arenas. Adopting this perspective in two case studies, we then explored how decision windows arise, which factors determine their effectiveness and how their occurrence can be influenced so as to arrive at more sustainable solutions. We conclude that the integration of environmental interests in urban planning is highly dependent on the ability of the professionals involved to recognize and manipulate decision windows. Finally, we explore how decision windows may be opened. -- Highlights: • Decision-making about sustainable urban development occurs in networks. • The concept of ‘decision windows’ was further elaborated. • Decision windows help understand how environmental interests enter decision-making. • Decision windows can, to some extent, be influenced.

Stigt, Rien van, E-mail: rien.vanstigt@hu.nl [Research Center for Technology and Innovation, Utrecht University of Applied Sciences, P.O. Box 182, 3500 AD Utrecht (Netherlands); Driessen, Peter P.J., E-mail: p.driessen@uu.nl [Copernicus Institute of Sustainable Development, Faculty of Geosciences, Utrecht University, P.O. Box 80.115, 3508 TC Utrecht (Netherlands); Spit, Tejo J.M., E-mail: T.J.M.Spit@uu.nl [Department of Human Geography and Spatial Planning, Faculty of Geosciences, Utrecht University, P.O. Box 80.115, 3508 TC Utrecht (Netherlands)

2013-09-15T23:59:59.000Z

300

Evaluation of coal-derived liquids as boiler fuels. Volume 2: boiler test results. Final report  

SciTech Connect (OSTI)

A combustion demonstration using six coal-derived liquid (CDL) fuels was conducted on a utility boiler located at the Plant Sweatt Electric Generating Station of Mississippi Power Company in Meridian, Mississippi. The test program was conducted in two phases. The first phase included the combustion tests of the two conventional fuels (natural gas and No. 6 fuel oil) and three coal-derived liquid fuels (Solvent Refined Coal-II full range distillate, H-Coal heavy distillate and H-Coal blended distillate). The second phase involved the evaluation of three additional CDL fuels (H-Coal light distillate, Exxon Donor Solvent full range distillate and Solvent Refined Coal-II middle distillate). The test boiler was a front wall-fired Babcock and Wilcox unit with a rated steam flow of 425,000 lb/h and a generating capacity of 40 MW. Boiler performance and emissions were evaluated with baseline and CDL fuels at 15, 25, 40 MW loads and at various excess air levels. Low NO/sub x/ (staged) combustion techniques were also implemented. Boiler performance monitoring included measurements for fuel steam and flue gas flow, pressure, temperature, and heat absorption, resulting in a calculated combustion efficiency, boiler efficiency, and heat rate. Emissions measurements included oxygen, carbon dioxide, carbon monoxide, oxides of nitrogen, sulfur dioxide, sulfur trioxide, acid dewpoint, particulate mass, size distribution and morphology, chlorides, and opacity. The test program demonstrated the general suitability of CDL fuels for use in existing oil-fired utility boilers. No significant boiler tube surface modifications will be required. The CDL fuels could be handled similarly to No. 2 oil with appropriate safety procedures and materials compatibility considerations. Volume 2 of a five-volume report contains the detailed boiler test results. 96 figs., 26 tabs.

Not Available

1985-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
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301

Final Report, Materials for Industrial Heat Recovery Systems, Tasks 3 and 4 Materials for Heat Recovery in Recovery Boilers  

SciTech Connect (OSTI)

The DOE-funded project on materials for industrial heat recovery systems included four research tasks: materials for aluminum melting furnace recuperator tubes, materials and operational changes to prevent cracking and corrosion of the co-extruded tubes that form primary air ports in black liquor recovery boilers, the cause of and means to prevent corrosion of carbon steel tubes in the mid-furnace area of recovery boilers, and materials and operational changes to prevent corrosion and cracking of recovery boiler superheater tubes. Results from studies on the latter two topics are given in this report while separate reports on results for the first two tasks have already been published. Accelerated, localized corrosion has been observed in the mid-furnace area of kraft recovery boilers. This corrosion of the carbon steel waterwall tubes is typically observed in the vicinity of the upper level of air ports where the stainless clad co-extruded wall tubes used in the lower portion of the boiler are welded to the carbon steel tubes that extend from this transition point or “cut line” to the top of the boiler. Corrosion patterns generally vary from one boiler to another depending on boiler design and operating parameters, but the corrosion is almost always found within a few meters of the cut line and often much closer than that. This localized corrosion results in tube wall thinning that can reach the level where the integrity of the tube is at risk. Collection and analysis of gas samples from various areas near the waterwall surface showed reducing and sulfidizing gases were present in the areas where corrosion was accelerated. However, collection of samples from the same areas at intervals over a two year period showed the gaseous environment in the mid-furnace section can cycle between oxidizing and reducing conditions. These fluctuations are thought to be due to gas flow instabilities and they result in an unstable or a less protective scale on the carbon steel tubes. Also, these fluctuating air flow patterns can result in deposition of black liquor on the wall tubes, and during periods when deposition is high, there is a noticeable increase in the concentrations of sulfur-bearing gases like hydrogen sulfide and methyl mercaptan. Laboratory studies have shown that chromized and aluminized surface treatments on carbon steel improve the resistance to sulfidation attack. Studies of superheater corrosion and cracking have included laboratory analyses of cracked tubes, laboratory corrosion studies designed to simulate the superheater environment and field tests to study the movement of superheater tubes and to expose a corrosion probe to assess the corrosion behavior of alternate superheater alloys, particularly alloys that would be used for superheaters operating at higher temperatures and higher pressures than most current boilers. In the laboratory corrosion studies, samples of six alternate materials were immersed in an aggressive, low melting point salt mixture and exposed for times up to 336 h, at temperatures of 510, 530 or 560°C in an inert or reactive cover gas. Using weight change and results of metallographic examination, the samples were graded on their resistance to the various environments. For the superheater corrosion probe studies, samples of the same six materials were exposed on an air-cooled corrosion probe exposed in the superheater section of a recovery boiler for 1000 h. Post exposure examination showed cracking and/or subsurface attack in the samples exposed at the higher temperatures with the attack being more severe for samples 13 exposed above the first melting temperature of the deposits that collected on the superheater tubes. From these superheater studies, a ranking was developed for the six materials tested. The task addressing cracking and corrosion of primary air port tubes that was part of this project produced results that have been extensively implemented in recovery boilers in North America, the Nordic countries and many other parts of the world. By utilizing these results, boilers ar

Keiser, James R.; Kish, Joseph R.; Singh, Preet M.; Sarma, Gorti B.; Yuan, Jerry; Gorog, J. Peter; Frederick, Laurie A.; Jette, Francois R.; Meisner, Roberta A.; Singbeil, Douglas L.

2007-12-31T23:59:59.000Z

302

System approach to reducing NO{sub x} emissions on a three cell high burner, heavy oil-fired boiler  

SciTech Connect (OSTI)

This paper documents the installation of plug-in low NO{sub x} burners on a utility boiler with cell burners. The original rapid mix burners and typical close burner centerline spacing produced a very hot furnace environment resulting in extremely high NO{sub x} emissions, in this case as high as 1.0 lbs/MMBtu. The unit was a {number_sign}6 oil-fired, 560 MW{sub e} supercritical pressure, three-cell burner boiler at Commonwealth Electric`s Canal Station, Unit {number_sign}1. This paper presents the results including emissions and boiler performance of the retrofit of DB Riley low NO{sub x} STS (Swirl Tertiary Stage) burners. Low NO{sub x} burners were used in conjunction with close-coupled overfire air using existing burner openings. The project reduced NO{sub x} emissions greater than 705 while firing {number_sign}6 oil, and this was accomplished with less than 10% flue gas recirculation.

Green, R.W.; Dorai, X.A. [DB Riley, Inc., Worcester, MA (United States); Hurley, B.A. [Commonwealth Electric Co., Wareham, MA (United States)

1996-11-01T23:59:59.000Z

303

Modeling reaction quench times in the waste heat boiler of a Claus plant  

SciTech Connect (OSTI)

At the high temperatures found in the modified Claus reaction furnace, the thermal decomposition and oxidation of H[sub 2]S yields large quantities of desirable products, gaseous hydrogen (H[sub 2]) and sulfur (S[sub 2]). However, as the temperature of the gas stream is lowered in the waste heat boiler (WHB) located downstream of the furnace, the reverse reaction occurs leading to reassociation of H[sub 2] and S[sub 2] molecules. To examine the reaction quenching capabilities of the WHB, a rigorous computer model was developed incorporating recently published intrinsic kinetic data. A sensitivity study performed with the model demonstrated that WHBs have a wide range of operation with gas mass flux in the tubes from 4 to 24 kg/(m[sup 2] [center dot] s). Most important, the model showed that is was possible to operate WHBs such that quench times could be decreased to 40 ms, which is a reduction by 60% compared to a base case scenario. Furthermore, hydrogen production could be increased by over 20% simply by reconfiguring the WHB tubes.

Nasato, L.V.; Karan, K.; Mehrotra, A.K.; Behie, L.A. (Univ. of Calgary, Alberta (Canada). Dept. of Chemical and Petroleum Engineering)

1994-01-01T23:59:59.000Z

304

Conceptual Design of Oxygen-Based PC Boiler  

SciTech Connect (OSTI)

Coal is presently the world's primary fuel for generating electrical power and, being more abundant and less expensive than oil or natural gas, is expected to continue its dominance into the future. Coal, however, is more carbon intensive than natural gas and oil and consequently coal-fired power plants are large point source emitters of carbon dioxide (CO{sub 2}). Since CO{sub 2} is a greenhouse gas, which may have an adverse impact on the world's climate/weather patterns, studies have been conducted to determine the feasibility and economic impact of capturing power plant CO{sub 2} emissions for pipeline transport to a sequestration/storage site. The stack gas that exhausts from a modern coal-fired power plant typically contains about 15% CO{sub 2} on a dry volume basis. Although there are numerous processes available for removing CO{sub 2} from gas streams, gas scrubbing with amine solvent is best suited for this application because of the large gas volumes and low CO{sub 2} concentrations involved. Unfortunately the energy required to regenerate the solvent for continued use as a capturing agent is large and imposes a severe energy penalty on the plant. In addition this ''back end'' or post combustion cleanup requires the addition of large vessels, which, in retrofit applications, are difficult to accommodate. As an alternative to post combustion scrubbing, Foster Wheeler (FW) has proposed that the combustion process be accomplished with oxygen rather than air. With all air nitrogen eliminated, a CO{sub 2}-water vapor rich flue gas will be generated. After condensation of the water vapor, a portion of the flue gas will be recirculated back to the boiler to control the combustion temperature and the balance of the CO{sub 2} will be processed for pipeline transport. This proposed oxygen-carbon dioxide (O{sub 2}/CO{sub 2}) combustion process eliminates the need for CO{sub 2} removal/separation and reduces the cost of supplying a CO{sub 2} rich stream for sequestration. FW has developed a conceptual design of an O{sub 2} fired boiler to determine overall plant performance and economics. Five subtasks were conducted: (1) a literature review, (2) a system design and analysis, (3) a low NOx burner design and analysis, (4) a furnace and heat recovery area design analysis, and (5) an economic analysis. The objective of the literature search is to locate any data/information relevant to the Oxygen-Based PC Boiler conceptual design. The objective of the system design and analysis task is to optimize the PC boiler plant by maximizing system efficiency within practical considerations. Simulations of the oxygen-fired plant with CO{sub 2} sequestration were conducted using Aspen Plus and were compared to a reference air-fired 460 MW plant. Flue gas recycle is used in the O{sub 2}-fired PC to control the flame temperature. Parametric runs were made to determine the effect of flame temperature on system efficiency and required waterwall material and thickness. The degree of improvement on system efficiency of various modifications including hot gas recycle, purge gas recycle, flue gas feedwater recuperation, and recycle purge gas expansion were investigated. The selected O{sub 2}-fired design case has a system efficiency of 30.6% compared to the air-fired system efficiency of 36.7%. The design O{sub 2}-fired case requires T91 waterwall material and has a waterwall surface area of only 65% of the air-fired reference case. The objective of the low NOx burner design and analysis task is to optimize the burner design to ensure stable ignition, to provide safe operation, and to minimize pollutant formation. The burners were designed and analyzed using the Fluent CFD computer program. Four burner designs were developed: (1) with no OFG and 65% flue gas recycle, (2) with 20% OFG and 65% flue gas recycle, (3) with no OFG and 56% flue gas recycle and (4) with 20% OFG and 56% flue gas recycle. A 3-D Fluent simulation was made of a single wall-fired burner and horizontal portion of the furnace from the wall to the center. Without primary gas sw

Andrew Seltzer; Zhen Fan

2005-09-01T23:59:59.000Z

305

Digital radiographic systems detect boiler tube cracks  

SciTech Connect (OSTI)

Boiler water wall leaks have been a major cause of steam plant forced outages. But conventional nondestructive evaluation techniques have a poor track record of detecting corrosion fatigue cracking on the inside surface of the cold side of waterwall tubing. EPRI is performing field trials of a prototype direct-digital radiographic system that promises to be a game changer. 8 figs.

Walker, S. [EPRI, Charlotte, NC (United States)

2008-06-15T23:59:59.000Z

306

Mitsubishi FGD plants for lignite fired boilers  

SciTech Connect (OSTI)

In order to respond to the increasing electric energy demand for sustaining economic growth, construction of coal-fired thermal power plants worldwide is indispensable. As a countermeasure for environmental pollution which otherwise may reach a serious proportion from the operation of these plants, construction of flue gas desulfurization (FGD) plants is being promoted. Among these power stations where lignite fuel is burnt, the FGD plants concerned have to be designed to cope with high gas volume and SO{sub x} concentration as well as violent fluctuations in their values caused by such features of lignite as high sulfur content, low calorific volume, and unstable properties. Mitsubishi Heavy Industries (MHI) has received construction awards for a total of seven (7) FGD plants for lignite-fired boilers in succession starting from that for CEZ as, Czech Republic followed by those for EGAT, Thailand in 1993. All these plants are presently operating satisfactorily since successful completion of their performance tests in 1996. Further, a construction award of three (3) more FGD plants for lignite-fired boilers was received from ENDESA (Spain) in 1995 which are now being outfitted and scheduled to start commercial operation in 1998. In this paper, the authors discuss the outline design of FGD plants for lignite-fired boilers based on experience of FGD plants constructed since 1970 for heavy oil--as well as black coal-fired boilers, together with items confirmed from the operation and design guideline hereafter.

Kotake, Shinichiro; Okazoe, Kiyoshi; Iwashita, Koichiro; Yajima, Satoru

1998-07-01T23:59:59.000Z

307

Energy Savings Calculator for Commercial Boilers: Closed Loop, Space  

Broader source: Energy.gov (indexed) [DOE]

Savings Calculator for Commercial Boilers: Closed Loop, Savings Calculator for Commercial Boilers: Closed Loop, Space Heating Applications Only Energy Savings Calculator for Commercial Boilers: Closed Loop, Space Heating Applications Only October 8, 2013 - 2:23pm Addthis This cost calculator is a screening tool that estimates a product's lifetime energy cost savings at various efficiency levels. Learn more about the base model and other assumptions. Project Type Is this a new installation or a replacement? New Replacement What is the deliverable fluid type? Water Steam What fuel is used? Gas Oil How many boilers will you purchase? unit(s) Performance Factors Existing What is the capacity of the existing boiler? MBtu/hr* What is the thermal efficiency of the existing boiler? % Et New What is the capacity of the new boiler?

308

The next generation of oxy-fuel boiler systems  

SciTech Connect (OSTI)

Research in the area of oxy-fuel combustion which is being pioneered by Jupiter Oxygen Corporation combined with boiler research conducted by the USDOE/Albany Research Center has been applied to designing the next generation of oxy-fuel combustion systems. The new systems will enhance control of boiler systems during turn-down and improve response time while improving boiler efficiency. These next generation boiler systems produce a combustion product that has been shown to be well suited for integrated pollutant removal. These systems have the promise of reducing boiler foot-print and boiler construction costs. The modularity of the system opens the possibility of using this design for replacement of boilers for retrofit on existing systems.

Ochs, Thomas L.; Gross, Alex (Jupiter Oxygen Corp.); Patrick, Brian (Jupiter Oxygen Corp.); Oryshchyn, Danylo B.; Summers, Cathy A.; Turner, Paul C.

2005-01-01T23:59:59.000Z

309

Development of high temperature air combustion technology in pulverized fossil fuel fired boilers  

SciTech Connect (OSTI)

High temperature air combustion (HTAC) is a promising technology for energy saving, flame stability enhancement and NOx emission reduction. In a conventional HTAC system, the combustion air is highly preheated by using the recuperative or regenerative heat exchangers. However, such a preheating process is difficult to implement for pulverized fossil fuel fired boilers. In this paper, an alternative approach is proposed. In the proposed HTAC system, a special burner, named PRP burner is introduced to fulfill the preheating process. The PRP burner has a preheating chamber with one end connected with the primary air and the other end opened to the furnace. Inside the chamber, gas recirculation is effectively established such that hot flue gases in the furnace can be introduced. Combustible mixture instead of combustion air is highly preheated by the PRP burner. A series of experiments have been conducted in an industrial scale test facility, burning low volatile petroleum coke and an anthracite coal. Stable combustion was established for burning pure petroleum coke and anthracite coal, respectively. Inside the preheating chamber, the combustible mixture was rapidly heated up to a high temperature level close to that of the hot secondary air used in the conventional HTAC system. The rapid heating of the combustible mixture in the chamber facilitates pyrolysis, volatile matter release processes for the fuel particles, suppressing ignition delay and enhancing combustion stability. Moreover, compared with the results measured in the same facility but with a conventional low NOx burner, NOx concentration at the furnace exit was at the same level when petroleum coke was burnt and 50% less when anthracite was burnt. Practicability of the HTAC technology using the proposed approach was confirmed for efficiently and cleanly burning fossil fuels. 16 refs., 10 figs., 1 tab.

Hai Zhang; Guangxi Yue; Junfu Lu; Zhen Jia; Jiangxiong Mao; Toshiro Fujimori; Toshiyuki Suko; Takashi Kiga [Tsinghua University, Beijing (China). Department of Thermal Engineering

2007-07-01T23:59:59.000Z

310

Optimized Utility Systems and Furnace Integration  

E-Print Network [OSTI]

OPTIMIZED UTILITY SYSTEMS AND FURNACE INTEGRATION A. S. McMullan and H. D. Spriggs, Linnhoff March, Inc., Leesburg, Va. ABSTRACT Conventional process design philosophy usually results in utility systems being designed after process design... defines the Process/Utility interface. Clearly, changing the process design can result in different utility demands and possibly in different utility system designs. This paper presents a procedure, using Pinch Technology, for the simultaneous design...

McMullan, A. S.; Spriggs, H. D.

311

LBNL Window & Daylighting Software -- WINDOW 6 Research Version  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 2 Last Updated: 12/29/2013 If you find bugs, or have comments about this version, please do not hesitate to send an email to WINDOWHelp@lbl.gov to report your findings. Getting feedback from users is how we improve the program. WINDOW 7.2 (7.2.29) (12/29/2013) Release Notes -- Please read these before running this version ! This version contains these new modeling features Honeycomb shades Dynamic Glazing (Thermochromic and Electrochromic) This version is compatible with THERM 7.1 Please send us emails as you find issues in the program -- that is the only way that we can make it more robust. We hope to iterate versions fairly quickly in the next month or so to get the bugs ironed out. Radiance for WINDOW 7 Get a copy of Radiance for WINDOW 7.2 Must be used with WINDOW 7.0.59 or later

312

LBNL Windows & Daylighting Software -- WINDOW5: Knowledge Base  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

6.3 Knowledge Base 6.3 Knowledge Base Tip - use the Find function in your browser to search this page Last update:11/04/13 01:16 PM Download WINDOW 6.3 Send feedback via email to WindowHelp@lbl.gov. Also as bugs and comments are submitted by testers, the will be posted on this Knowledge Base, so check here for the latest information about the program. CONTENTS INSTALLATION KNOWN BUGS ** Operating Systems -- Microsoft Windows 7 and Vista ** Environmental Conditions -- Kimura convection model not working Locked Files with Install/De-install Environmental Conditions -- Fixed Combined Coefficient Bug Installation Problems Error Message during Calc due to decimal point of "," Minimum computer requirements Importing THERM file into WINDOW generates "Unnamed file has a bad format" error message

313

LBNL Window & Daylighting Software -- WINDOW 6 Research Version  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

7.0 7.0 Last Updated: 05/20/2013 EN 673 / ISO 10077 Using WINDOW 7 and THERM 7 for EN 673 / ISO 10077 Calculations If you are interested in using WINDOW and THERM for EN 673 / ISO 10077 calculations, we have added that option to WINDOW 7. The calculation is not fully automated in the program yet, so there are many steps and a spreadsheet for the final calculation. We are interested in feedback (email WINDOWHelp@lbl.gov) about the process and the results from anyone who tests this feature. CAUTION: Do not model shading systems with the EN 673 thermal model. The program will produce results but they will most likely not be correct. Download this zip file (EN673.zip) which contains the following: Description of how to use WINDOW 6 and THERM 6 for the EN 673 / ISO 10077 calculations (PDF file)

314

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Storm Windows Storm Windows Window Attachments For detailed information on storm windows and other window attachments, visit www.windowattachments.org exit disclaimer , a site supported by Lawrence Berkeley National Laboratory, Building Green, and the U.S. Department of Energy. DOE's Energy Savers You can improve the energy efficiency of existing windows by adding interior or exterior storm panels. Storm Window Panels exit disclaimer Storm windows can reduce the air leakage and improve the insulating value of existing windows. They can be installed on the interior or exterior side of windows, and can be mounted permanently or for seasonal use. Interior storm windows can be more easily installed and removed for ventilation or cleaning. Storm windows can reduce air leakage. However, it is important that humid

315

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Solar Control Window Film Solar Control Window Film Window Attachments For detailed information on storm windows and other window attachments, visit www.windowattachments.org exit disclaimer , a site supported by Lawrence Berkeley National Laboratory, Building Green, and the U.S. Department of Energy. DOE's Energy Savers You can improve the energy efficiency of existing windows by applying a film. High-Reflectivity Window Films exit disclaimer International Window Film Association For more information on window film, check the Window Film Information Center exit disclaimer . Solar control window film reduces solar heat gain by reflection and absorption. As they also block solar heat gain in winter months, these films are ideal for cooling-dominated climates. Window films can be tinted

316

Electron gun with cylindrical window  

SciTech Connect (OSTI)

This paper describes a three-electrode electron gun with a foil window in the form of a cylinder 300 mm in diameter and 200 mm high. With an accelerating voltage of 140 kV in the pulse mode (10 usec at 2 Hz) with grid modulation, the current extracted from the foil is 5.5 A. The ratio of the window area to the mass of the gun (23.7 cm/sup 2//kg) is greater by a factor of 3-5 than that of similar guns with flat windows.

Grigorev, Y.V.; Stepanov, A.V.

1986-01-01T23:59:59.000Z

317

High-Efficiency Window Air Conditioners - Building America Top...  

Broader source: Energy.gov (indexed) [DOE]

Window Air Conditioners - Building America Top Innovation This photo shows a window air conditioning unit in place in a window frame. Window air conditioners are inexpensive,...

318

Definition of safe feedslate and operating windows in an olefins plant  

SciTech Connect (OSTI)

Safety related procedures and practices have evolved over the years with the OSHA 1910 regulations established as the most recent benchmark. Documentation of the safe upper limits for flow or composition is now required along with the definition of steps to correct or avoid deviation from these operating limits. In an effort to comply with these requirements at a US Gulf Coast ethylene plant, feedslate window limits and safe operating window limits have been defined which specify the upper operating limits of the plant. The feedslate window is a set of limits expressed in terms of the maximum allowed ethylene production for each feedslate. Adherence to the feedslate window limits will keep plant operations within the capacity of the flare network and composition sensitive SRV`s. Only likely feedslate/cracking severity combinations within the capability of the pyrolysis furnace and feed systems are considered. The safe operating window identifies limits for individual plant systems where operations could potentially exceed the capability of the safety relief valves (SRV`s). There will generally be only a few operating window limits in a given ethylene plant. Within most plant systems, equipment limitations prevent operations above the SRV`s capability, and no operating window limit is required. The philosophy and procedures developed for establishing feedslate window limits and safe operating window limits are described in this paper. These limits are defined to ensure operations remain within the capability of the plant safety relief systems. It should be noted that there are other safety related operating limits (e.g. erosion based velocity limits, hydrogen flow limits in hydrogenation reactors, etc.) in an ethylene plant, but are outside the scope of this paper.

Chan, P.S.; Sellinger, D. [M.W. Kellogg Co., Houston, TX (United States)

1994-12-31T23:59:59.000Z

319

Characterization of Energy Savings and Thermal Comfort Improvements Derived from Using Interior Storm Windows  

SciTech Connect (OSTI)

This field study of a single historic home in Seattle, WA documents the performance of Indow Windows’s interior storm window inserts. Energy use and the temperature profile of the house were monitored before and after the installation of the window inserts and changes in the two recorded metrics were examined. Using the defined analysis approach, it was determined that the interior storm windows produced a 22% reduction of the HVAC energy bill and had an undetermined effect on the thermal comfort in the house. Although there was no measurable changes in the thermal comfort of the house, the occupant noted the house to be “warmer in the winter and cooler in the summer” and that the “temperatures are more even (throughout the house).” The interior storm windows were found to be not cost effective, largely due to the retrofits completed on its heating system. However, if the economic analysis was conducted based on the old heating system, a 72% efficient oil fired furnace, the Indow Windows proved to be economical and had a simple payback period of 9.0 years.

Knox, Jake R.; Widder, Sarah H.

2013-09-30T23:59:59.000Z

320

Windows and Building Envelope | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

and market challenges in the windows and building envelope sector. Image: National Renewable Energy Laboratory Read more Insulation and Window Projects Named as Top Energy...

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Recovery Boiler Superheater Ash Corrosion Field Study  

SciTech Connect (OSTI)

With the trend towards increasing the energy efficiency of black liquor recovery boilers operated in North America, there is a need to utilize superheater tubes with increased corrosion resistance that will permit operation at higher temperatures and pressures. In an effort to identify alloys with improved corrosion resistance under more harsh operating conditions, a field exposure was conducted that involved the insertion of an air-cooled probe, containing six candidate alloys, into the superheater section of an operating recovery boiler. A metallographic examination, complete with corrosion scale characterization using EMPA, was conducted after a 1,000 hour exposure period. Based on the results, a ranking of alloys based on corrosion performance was obtained.

Keiser, James R [ORNL] [ORNL; Kish, Joseph [McMaster University] [McMaster University; Singbeil, Douglas [FPInnovations] [FPInnovations

2010-01-01T23:59:59.000Z

322

Innovative boiler master design improves system response  

SciTech Connect (OSTI)

A quick and nimble boiler distributed control system can end up moving at the speed of molasses in winter after a low-NOx retrofit. In one utility fleet, several units, despite being equipped with a modern DCS, were experiencing firing system time lags and degraded dynamic loading capability. Swinging steam pressures and opacity excursions were forcing operators to constantly remove the unit from the load dispatch. Following a discussion of the new boiler control strategy, this article presents three studies detailing its installation at four coal-fired units owned and operated by the Kentucky Utilities (KU) subsidiary of E.ON US. The 495-MW Unit 3 of E.W. Brown Generating Station; the 75-MW Unit 3 of Tyrone Generating Station and the 75-MW Unit 3 and 100-MW Unit 4 of Green River Generating Station. Coal-fired plants produce about 95% of Kentucky's total generation. 4 figs.

Keller, G.; Baker, B.; Jones, R.J. [Burns and Roe, Oradell, NJ (United States)

2007-02-15T23:59:59.000Z

323

Recovery of Water from Boiler Flue Gas  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

RecoveRy of WateR fRom BoileR flue Gas RecoveRy of WateR fRom BoileR flue Gas Background Coal-fired power plants require large volumes of water for efficient operation, primarily for cooling purposes. Public concern over water use is increasing, particularly in water stressed areas of the country. Analyses conducted by the U.S. Department of Energy's National Energy Technology Laboratory predict significant increases in power plant freshwater consumption over the coming years, encouraging the development of technologies to reduce this water loss. Power plant freshwater consumption refers to the quantity of water withdrawn from a water body that is not returned to the source but is lost to evaporation, while water withdrawal refers to the total quantity of water removed from a water source.

324

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Window Technologies: Operator Types Window Technologies: Operator Types Window Sash Operation When you select a window, there are numerous operating types to consider. Traditional operable window types include the projected or hinged types such as casement, awning, and hopper, and the sliding types such as double- and single-hung and horizontal sliding. In addition, the window market includes fixed windows, storm windows, sliding and swinging patio doors, skylights and roof windows, and window systems that can be added to a house to create bay or bow windows, miniature greenhouses, or full sun rooms. Looking for information on skylights? More information on skylights, light tubes, and their installation can be found here. Casement Casement windows are hinged at the sides. Hinged windows such as casements generally have lower air leakage rates than sliding windows from the same manufacturer because the sash closes by pressing against the frame. Casement windows project outward, providing significantly better ventilation than sliders of equal size. Because the sash protrudes from the plane of the wall, it can be controlled to catch passing breezes, but screens must be placed on the interior side. Virtually the entire casement window area can be opened, while sliders are limited to less than half of the window area. Casement

325

World Class Boilers and Steam Distribution System  

E-Print Network [OSTI]

WORLD CLASS BOILERS AND STEAM DISTRIBUTION SYSTEM Vernon P. Portell, Ph.D. Manager Armstrong Service, Inc. ABSTRACT categorizing, measuring, and comparing subjects which are of interest to us is the way we identify the "World class" is a... of information can also be obtained through an independent firm that provides third-party assessment of steam systems. One of these third parties, Armstrong Energy Certification, Inc., has used data gleaned from decades of industrial experience...

Portell, V. P.

326

BOILER MATERIALS FOR ULTRASUPERCRITICAL COAL POWER PLANTS  

SciTech Connect (OSTI)

The principal objective of this project is to develop materials technology for use in ultrasupercritical (USC) plant boilers capable of operating with 760 C (1400 F), 35 MPa (5000 psi) steam. This project has established a government/industry consortium to undertake a five-year effort to evaluate and develop of advanced materials that allow the use of advanced steam cycles in coal-based power plants. These advanced cycles, with steam temperatures up to 760 C, will increase the efficiency of coal-fired boilers from an average of 35% efficiency (current domestic fleet) to 47% (HHV). This efficiency increase will enable coal-fired power plants to generate electricity at competitive rates (irrespective of fuel costs) while reducing CO{sub 2} and other fuel-related emissions by as much as 29%. Success in achieving these objectives will support a number of broader goals. First, from a national prospective, the program will identify advanced materials that will make it possible to maintain a cost-competitive, environmentally acceptable coal-based electric generation option. High sulfur coals will specifically benefit in this respect by having these advanced materials evaluated in high-sulfur coal firing conditions and from the significant reductions in waste generation inherent in the increased operational efficiency. Second, from a national prospective, the results of this program will enable domestic boiler manufacturers to successfully compete in world markets for building high-efficiency coal-fired power plants.

R. Viswanathan; K. Coleman; R.W. Swindeman; J. Sarver; J. Blough; W. Mohn; M. Borden; S. Goodstine; I. Perrin

2003-10-20T23:59:59.000Z

327

BOILER MATERIALS FOR ULTRASUPERCRITICAL COAL POWER PLANTS  

SciTech Connect (OSTI)

The principal objective of this project is to develop materials technology for use in ultrasupercritical (USC) plant boilers capable of operating with 760 C (1400 F), 35 MPa (5000 psi) steam. This project has established a government/industry consortium to undertake a five-year effort to evaluate and develop of advanced materials that allow the use of advanced steam cycles in coal-based power plants. These advanced cycles, with steam temperatures up to 760 C, will increase the efficiency of coal-fired boilers from an average of 35% efficiency (current domestic fleet) to 47% (HHV). This efficiency increase will enable coal-fired power plants to generate electricity at competitive rates (irrespective of fuel costs) while reducing CO{sub 2} and other fuel-related emissions by as much as 29%. Success in achieving these objectives will support a number of broader goals. First, from a national prospective, the program will identify advanced materials that will make it possible to maintain a cost-competitive, environmentally acceptable coal-based electric generation option. High sulfur coals will specifically benefit in this respect by having these advanced materials evaluated in high-sulfur coal firing conditions and from the significant reductions in waste generation inherent in the increased operational efficiency. Second, from a national prospective, the results of this program will enable domestic boiler manufacturers to successfully compete in world markets for building high-efficiency coal-fired power plants.

R. Viswanathan; K. Coleman; R.W. Swindeman; J. Sarver; J. Blough; W. Mohn; M. Borden; S. Goodstine; I. Perrin

2003-08-04T23:59:59.000Z

328

Covered Product Category: Commercial Boiler | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Commercial Boiler Commercial Boiler Covered Product Category: Commercial Boiler October 7, 2013 - 10:27am Addthis What's Covered All Federal purchases of hot water or steam boilers (using either oil or gas) with a rated capacity (Btu/h) of 300,000-10,000,000 must meet or exceed FEMP-designated thermal efficiencies. FEMP provides acquisition guidance and Federal efficiency requirements across a variety of product categories, including commercial boilers, which is a FEMP-designated product category. Federal laws and executive orders mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law. Meeting Energy Efficiency Requirements for Commercial Boilers Table 1 displays the FEMP-designated minimum efficiency requirements for

329

New Boilers, Big Savings for Minnesota County | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

New Boilers, Big Savings for Minnesota County New Boilers, Big Savings for Minnesota County New Boilers, Big Savings for Minnesota County August 25, 2010 - 12:00pm Addthis Paul Lester Communications Specialist, Office of Energy Efficiency and Renewable Energy Officials at Sherburne County's Government Center in Minnesota had a problem: the complex's original boilers, installed in 1972, were in desperate need of replacing. The two boilers were inefficient, labor intensive and well past their life expectancy. Any upgrades to the system were put on hold as the county tightened its purse strings amid a tough economy. "We kept asking: 'Can we make these things last one more year?'" says Dave Lucas, Sherburne County's solid waste administrator. However, hopes for a new set of boilers were revived in April after the

330

Operating experience of Pyroflow boilers in a 250 MWe unit  

SciTech Connect (OSTI)

The Cedar Bay Cogeneration project is a 250 MWe unit owned and operated by US Generating Company. This plant has one turbine rated at 250 MWe net which is supplied by three Pyroflow CFB boilers that operate in parallel while supplying a paper mill with steam on an uninterruptible basis. Compared to similar size CFB boilers the Cedar Bay boilers have certain unique features. First, these are reheat boilers which must continue to supply process steam even when the steam turbine is down. Second, the SO{sub 2} control operates at a very low Ca/S molar ratio by optimizing the process conditions and flyash reinjection. Third, the NO{sub x} reduction process utilizes aqueous ammonia injection. This paper presents the operating data at full load in terms of boiler efficiency, and the ability to limit gaseous emissions with minimum limestone and ammonia usage. Unique features relating to the multiple boiler installation are also discussed.

Chelian, P.K.; Hyvarinen, K. [Pyropower Corp., San Diego, CA (United States)

1995-12-31T23:59:59.000Z

331

New Boilers, Big Savings for Minnesota County | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Boilers, Big Savings for Minnesota County Boilers, Big Savings for Minnesota County New Boilers, Big Savings for Minnesota County August 25, 2010 - 12:00pm Addthis Paul Lester Communications Specialist, Office of Energy Efficiency and Renewable Energy Officials at Sherburne County's Government Center in Minnesota had a problem: the complex's original boilers, installed in 1972, were in desperate need of replacing. The two boilers were inefficient, labor intensive and well past their life expectancy. Any upgrades to the system were put on hold as the county tightened its purse strings amid a tough economy. "We kept asking: 'Can we make these things last one more year?'" says Dave Lucas, Sherburne County's solid waste administrator. However, hopes for a new set of boilers were revived in April after the

332

Residential Two-Stage Gas Furnaces - Do They Save Energy?  

E-Print Network [OSTI]

ASHRAE test procedure for several furnace efficiency levels (80%, 81%, 90%,ASHRAE Test Procedure 80% AFUE (Two-stage, BPM) 81% AFUE (Two-stage, BPM) 90%

Lekov, Alex; Franco, Victor; Lutz, James

2006-01-01T23:59:59.000Z

333

Nitrogen oxide emissions from a kraft recovery furnace  

SciTech Connect (OSTI)

Nitrogen Oxide (NOx) emissions from a rebuilt kraft recovery furnace slightly exceeded the specified limit of 1.1 lb/ton (0.55 kg/metric ton) of black-liquor solids. Mill trials were undertaken to determine whether NOx emissions could be minimized by modifying furnace operation. NOx emissions increased when secondary air was shifted to tertiary ports. NOx emissions fell when the amounts of primary and total air were decreased, but this increased emissions of other pollutants. After demonstrating that best operation of the furnace could not meet the permit with an emissions limit that matched the furnace's performance at best operation.

Prouty, A.L.; Stuart, R.C. (James River Corp., Camas, WA (United States)); Caron, A.L. (NCASI West Coast Regional Office, Corvallis, OR (United States))

1993-01-01T23:59:59.000Z

334

Install Waste Heat Recovery Systems for Fuel-Fired Furnaces  

Broader source: Energy.gov [DOE]

This tip sheet recommends installing waste heat recovery systems for fuel-fired furnaces to increase the energy efficiency of process heating systems.

335

Implementation of an Organic Rankine cycle on a Stepping furnace.  

E-Print Network [OSTI]

?? In this master thesis an implementation of an Organic Rankine Cycle (ORC) on a stepping furnace in a steel mill is modeled and proposed.… (more)

Pižorn, Žiga

2014-01-01T23:59:59.000Z

336

Breakthrough Furnace Can Cut Solar Industry Costs (Fact Sheet)  

SciTech Connect (OSTI)

A game-changing Optical Cavity Furnace (OCF), developed by NREL, uses optics to heat and purify solar cells at unmatched precision, while also boosting the cells' efficiency.

Not Available

2013-08-01T23:59:59.000Z

337

Build, Own, Operate and Maintain (BOOM) Boiler Systems  

E-Print Network [OSTI]

Build, Own, Operate and Maintain (BOOM) Boiler Systems Tom Henry, Annstrong Service, Inc. Overview: The article addresses the growing trend in outsourcing boiler equipment, installation, operation, maintenance and ownership by large.... In most cases, thennal, electric and air energy systems are not considered "core" assets resulting in the need to find "other" solutions to providing the needed energy. ? Reduced staffing has resulted in fewer experienced and knowledgeable boiler...

Henry, T.

338

BPM: A tool to predict boiler performance on a PC  

SciTech Connect (OSTI)

The Department of energy has developed and made available to the public a PC-based software package (BPM 3.0) to help engineers predict the performance of utility boilers in non-standard modes of operation for power generation systems. This package is especially useful for analyzing changes in boiler performance resulting from fuel switching, changes in operating modes (e.g., constant versus variable pressure), and physical changes to the boiler. The report discusses the use of the program.

Lagomarsino, J. [Burns and Roe, Inc., Oradell, NJ (United States); Ramezan, M. [Burns and Roe Services Corp., Pittsburgh, PA (United States); Winslow, J. [USDOE Pittsburgh Energy Technology Center, PA (United States)

1994-06-01T23:59:59.000Z

339

Molten metal holder furnace and casting system incorporating the molten metal holder furnace  

DOE Patents [OSTI]

A bottom heated holder furnace (12) for containing a supply of molten metal includes a storage vessel (30) having sidewalls (32) and a bottom wall (34) defining a molten metal receiving chamber (36). A furnace insulating layer (42) lines the molten metal receiving chamber (36). A thermally conductive heat exchanger block (54) is located at the bottom of the molten metal receiving chamber (36) for heating the supply of molten metal. The heat exchanger block (54) includes a bottom face (65), side faces (66), and a top face (67). The heat exchanger block (54) includes a plurality of electrical heaters (70) extending therein and projecting outward from at least one of the faces of the heat exchanger block (54), and further extending through the furnace insulating layer (42) and one of the sidewalls (32) of the storage vessel (30) for connection to a source of electrical power. A sealing layer (50) covers the bottom face (65) and side faces (66) of the heat exchanger block (54) such that the heat exchanger block (54) is substantially separated from contact with the furnace insulating layer (42).

Kinosz, Michael J. (Apollo, PA); Meyer, Thomas N. (Murrysville, PA)

2003-02-11T23:59:59.000Z

340

CMU-ITC-86-045 , Windowing  

E-Print Network [OSTI]

on window-manager style graphics systems using the Tek termi- nals, inspired by some film Alan Kay showedCMU-ITC-86-045 , Windowing Systems , Implementations #12;#12;Window System Implementations Denver ABSTRACT Notes for a course given at the 1986 Winter Usenix meeting in Denver, CO. It covers window systems

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Fluidized bed boiler having a segmented grate  

DOE Patents [OSTI]

A fluidized bed furnace (10) is provided having a perforate grate (9) within a housing which supports a bed of particulate material including some combustibles. The grate is divided into a plurality of segments (E2-E6, SH1-SH5, RH1-RH5), with the airflow to each segment being independently controlled. Some of the segments have evaporating surface imbedded in the particulate material above them, while other segments are below superheater surface or reheater surface. Some of the segments (E1, E7) have no surface above them, and there are ignitor combustors (32, 34) directed to fire into the segments, for fast startup of the furnace without causing damage to any heating surface.

Waryasz, Richard E. (Longmeadow, MA)

1984-01-01T23:59:59.000Z

342

Residual Strain Distribution in Bent Composite Boiler Tubes  

SciTech Connect (OSTI)

Kraft recovery boilers are typically constructed of carbon steel boiler tubes clad with a corrosion resistant layer, and these composite tubes are bent and welded together to form air port panels which enable the combustion air to enter the boiler. In this paper, the through-thickness residual strain in the carbon steel layer of non-heat-treated and heat-treated composite bent tubes were measured by neutron diffraction techniques and modeled by finite element modeling. The results can be used to optimize material selection and manufacturing processes to prevent stress corrosion and corrosion fatigue cracking in the boiler tubes.

Hubbard, Camden R [ORNL; Gorti, Sarma B [ORNL; Tang, Fei [ORNL

2006-01-01T23:59:59.000Z

343

Field Test of Boiler Primary Loop Temperature Controller  

SciTech Connect (OSTI)

Beyond these initial system efficiency upgrades are an emerging class of Advanced Load Monitoring (ALM) aftermarket controllers that dynamically respond to the boiler load, with claims of 10% to 30% of fuel savings over a heating season. For hydronic boilers specifically, these devices perform load monitoring, with continuous measurement of supply and in some cases return water temperatures. Energy savings from these ALM controllers are derived from dynamic management of the boiler differential, where a microprocessor with memory of past boiler cycles prevents the boiler from firing for a period of time, to limit cycling losses and inefficient operation during perceived low load conditions. These differ from OTR controllers, which vary boiler setpoint temperatures with ambient conditions while maintaining a fixed differential. PARR installed and monitored the performance of one type of ALM controller, the M2G from Greffen Systems, at multifamily sites in the city of Chicago and its suburb Cary, IL, both with existing OTR control. Results show that energy savings depend on the degree to which boilers are over-sized for their load, represented by cycling rates. Also savings vary over the heating season with cycling rates, with greater savings observed in shoulder months. Over the monitoring period, over-sized boilers at one site showed reductions in cycling and energy consumption in line with prior laboratory studies, while less over-sized boilers at another site showed muted savings.

Glanville, P.; Rowley, P.; Schroeder, D.; Brand, L.

2014-09-01T23:59:59.000Z

344

Evaluation of Heat Losses in Fire Tube Boiler  

E-Print Network [OSTI]

Abstract – The efficiency of oil fired fire tube boiler was calculated by evaluating the heat losses. Investigation on the performance of the boiler was conducted by examining the heat losses, identifying the reasons for losses, measuring the individual loss and developing a strategy for loss reduction. This study was carried out in Texmaco package horizontal fire tube boiler at Travancore Titanium Products Ltd (TTPL), Trivandrum, Kerala. The boiler efficiency was measured by indirect method. Heat losses in dry flue gas and due to unburned fuel were found to be the major problems. Since they were interrelated, installation of Zirconium oxygen sensor was recommended as a common remedy.

S. Krishnanunni; Josephkunju Paul C; Mathu Potti; Ernest Markose Mathew

345

Modeling of a Drum Boiler Using MATLAB/Simulink.  

E-Print Network [OSTI]

?? A dynamic simulator was developed for a natural circulation drum type boiler through a joint Youngstown State University/The Babcock and Wilcox Company cooperative agreement.… (more)

Anderson, Scott B.

2008-01-01T23:59:59.000Z

346

Application of Boiler Op for combustion optimization at PEPCO  

SciTech Connect (OSTI)

Title IV requires the reduction of NOx at all stations within the PEPCO system. To assist PEPCO plant personnel in achieving low heat rates while meeting NOx targets, Lehigh University`s Energy Research Center and PEPCO developed a new combustion optimization software package called Boiler Op. The Boiler Op code contains an expert system, neural networks and an optimization algorithm. The expert system guides the plant engineer through a series of parametric boiler tests, required for the development of a comprehensive boiler database. The data are then analyzed by the neural networks and optimization algorithm to provide results on the boiler control settings which result in the best possible heat rate at a target NOx level or produce minimum NOx. Boiler Op has been used at both Potomac River and Morgantown Stations to help PEPCO engineers optimize combustion. With the use of Boiler Op, Morgantown Station operates under low NOx restrictions and continues to achieve record heat rate values, similar to pre-retrofit conditions. Potomac River Station achieves the regulatory NOx limit through the use of Boiler Op recommended control settings and without NOx burners. Importantly, any software like Boiler Op cannot be used alone. Its application must be in concert with human intelligence to ensure unit safety, reliability and accurate data collection.

Maines, P.; Williams, S. [Potomac Electric Power Co., Upper Marlsboro, MD (United States); Levy, E. [Lehigh Univ., Bethlehem, PA (United States). Energy Research Center

1997-09-01T23:59:59.000Z

347

FEMP Technology Brief: Boiler Combustion Control and Monitoring System  

Broader source: Energy.gov [DOE]

There are more than 45,000 industrial and commercial boilers larger than 10 MMBtu/hr in the United States with a total fuel input capacity of 2.7 million MMBtu/hr. Efficiency of existing boilers can be improved in three ways; replacement with new boilers, replacement of the burner, or installation of a combustion control system. While installation of a new boiler or replacement of the burner can lead to the greatest efficiency gains, the higher costs associated with these measures typically leads to longer payback periods than combustion control systems.

348

EECBG Success Story: New Boilers, Big Savings for Minnesota County  

Broader source: Energy.gov [DOE]

Officials at Sherburne County's Government Center in Minnesota had a problem: the complex's original boilers, installed in 1972, were in desperate need of replacing. Learn more.

349

Suspension-fired biomass boilers. Three case studies  

SciTech Connect (OSTI)

A discussion of the conversion of oil-or gas-fired boilers to fire pulverized bark and wood wastes in suspension.

Robinson, L.

1986-01-01T23:59:59.000Z

350

FEMP Technology Brief: Boiler Combustion Control and Monitoring System |  

Broader source: Energy.gov (indexed) [DOE]

Boiler Combustion Control and Monitoring Boiler Combustion Control and Monitoring System FEMP Technology Brief: Boiler Combustion Control and Monitoring System October 7, 2013 - 9:12am Addthis This composite photo shows technicians observing operation at the monitoring station and making subsequent fine adjustments on combustion system controls Technical staff are making boiler adjustments with the control and monitoring system. Photo courtesy of the Department of Defense's Environmental Security Technology Certification Program. Technology Description A novel combustion control system, along with gas sensors, sets the opening of fuel and air inlets based on flue-gas concentrations. Continuous feedback from measurements of oxygen, carbon monoxide, and nitrogen oxide concentrations enable the control system

351

A centurial history of technological change and learning curves or pulverized coal-fired utility boilers  

E-Print Network [OSTI]

allow ultra-supercritical boilers to achieve still higherthat supercritical-coal boilers, at least in the 1970s, didGW/year) by type of boiler. Source: [25]. Net Efficiency (

Yeh, Sonia; Rubin, Edward S.

2007-01-01T23:59:59.000Z

352

Robust Output Feedback Stabilization of Nonlinear Interconnected Systems with Application to an Industrial Utility Boiler  

E-Print Network [OSTI]

to an Industrial Utility Boiler Adarsha Swarnakar, Horacio Jose Marquez and Tongwen Chen Abstract-- This paper boiler (Utility boiler), where the nonlinear model describes the complicated dynamics of the drum

Marquez, Horacio J.

353

The heat transfer coefficients of the heating surface of 300 MWe CFB boiler  

Science Journals Connector (OSTI)

A study of the heat transfer about the heating surface of three commercial 300 MWe CFB boilers was conducted in this work. The ... heat balance of the hot circuit of the CFB boiler. With the boiler capacity incre...

Haibo Wu; Man Zhang; Qinggang Lu; Yunkai Sun

2012-08-01T23:59:59.000Z

354

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Repair Existing Windows Repair Existing Windows Lead Paint and Window Replacement: Challenges and Opportunities In older homes, windows are a likely source of lead contamination in homes. Dust from lead paint can create serious health problems, especially in young children. While window replacement can increase lead dust during renovation, it can also permanently eliminate lead hazards by removing lead-painted windows. Download fact sheet» A variety of options exist for improving the energy-efficiency of your existing windows. Before investing in these options, check your windows for potential issues that may call for replacement instead: Moisture and mold between window frame and wall: If water and water vapors are allowed to penetrate around the window frame, the moisture can

355

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Understanding Windows Understanding Windows Benefits of Energy Efficient Windows The purpose for windows is to provide natural light, natural ventilation, and views to the outside. The benefits of high performance windows allows for Energy & Cost Savings, Improved Comfort, Less Condensation, Increased Light & View, Reduced Fading, and Lower HVAC Costs. Benefits of Energy Efficient Windows Design Considerations Windows are a complex and interesting element in residential design. New window products and technologies have changed the performance of windows in a radical way. Issues such as climate, orientation, shading, and window area all effect the energy performance, but human factor issues such as access to fresh air, daylight, and natural views impact the comfort of a home.

356

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Measuring Performance: Air Leakage (AL) Measuring Performance: Air Leakage (AL) Is my window leaking air? The Air Leakage (AL) rating pertains to leakage through the window assembly itself. Air infiltration can also occur around the frame of the window due to poor installation or poor maintenance of existing window systems. Make sure windows are properly installed and maintained (caulking and weatherstripping). Cold glass can create uncomfortable drafts as air next to the window is cooled and drops to the floor. This is not a result of air leaking through or around the window assembly but from a convective loop created when next to a window is cooled and drops to the floor. This air movement can be avoided by installing high-performance windows. Heat loss and gain occur by infiltration through cracks in the window

357

Characterization of the U.S. Industrial/Commercial Boiler Population...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Characterization of the U.S. IndustrialCommercial Boiler Population - Final Report, May 2005 Characterization of the U.S. IndustrialCommercial Boiler Population - Final Report,...

358

Experimental Study on Coal Feeding Property of 600MW CFB Boiler  

Science Journals Connector (OSTI)

In the CFB boiler technology, improving the steam parameters can ... , based on the structure of commercial 600MW CFB boiler unit and similarity principle, the experiment...

H. P. Chen; L. N. Tian; Q. Du; H. P. Yang…

2010-01-01T23:59:59.000Z

359

Guide to Combined Heat and Power Systems for Boiler Owners and...  

Broader source: Energy.gov (indexed) [DOE]

Combined Heat and Power Systems for Boiler Owners and Operators Guide to Combined Heat and Power Systems for Boiler Owners and Operators This guide presents useful information for...

360

Evaluation of Gas Reburning and Low N0x Burners on a Wall Fired Boiler  

SciTech Connect (OSTI)

Under the U.S. Department of Energy's Clean Coal Technology Program (Round 3), a project was completed to demonstrate control of boiler emissions that comprise acid rain precursors, especially NOX. The project involved operating gas reburning technology combined with low NO, burner technology (GR-LNB) on a coal-fired utility boiler. Low NOX burners are designed to create less NOX than conventional burners. However, the NO, control achieved is in the range of 30-60-40, and typically 50%. At the higher NO, reduction levels, CO emissions tend to be higher than acceptable standards. Gas Reburning (GR) is designed to reduce the level of NO. in the flue gas by staged fuel combustion. When combined, GR and LNBs work in harmony to both minimize NOX emissions and maintain an acceptable level of CO emissions. The demonstration was performed at Public Service Company of Colorado's (PSCO) Cherokee Unit 3, located in Denver, Colorado. This unit is a 172 MW. wall-fired boiler that uses Colorado bituminous, low-sulfur coal and had a pre GR-LNB baseline NOX emission of 0.73 lb/1 Oe Btu. The target for the project was a reduction of 70 percent in NOX emissions. Project sponsors included the U.S. Department of Energy, the Gas Research Institute, Public Service Company of Colorado, Colorado Interstate Gas, Electric Power Research Institute, and the Energy and Environmental Research Corporation (EER). EER conducted a comprehensive test demonstration program over a wide range of boiler conditions. Over 4,000 hours of operation were achieved. Intensive measurements were taken to quantify the reductions in NOX emissions, the impact on boiler equipment and operability, and all factors influencing costs. The results showed that GR-LNB technology achieved excellent emission reductions. Although the performance of the low NOX burners (supplied by others) was somewhat less than expected, a NOX reduction of 65% was achieved at an average gas heat input of 180A. The performance goal of 70% reduction was met on many test runs, but at higher gas heat inputs. The impact on boiler equipment was determined to be very minimal. Toward the end of the testing, the flue gas recirculation (used to enhance gas penetration into the furnace) system was removed and new high pressure gas injectors were installed. Further, the low NOX burners were modified and gave better NO. reduction performance. These modifications resulted in a similar NO, reduction performance (64%) at a reduced level of gas heat input (-13Yo). In addition, the OFA injectors were re-designed to provide for better control of CO emissions. Although not a part of this project, the use of natural gas as the primary fuel with gas reburning was also tested. The gas/gas reburning tests demonstrated a reduction in NOX emissions of 43% (0.30 lb/1 OG Btu reduced to 0.17 lb/1 OG Btu) using 7% gas heat input. Economics are a key issue affecting technology development. Application of GR-LNB requires modifications to existing power plant equipment and as a result, the capital and operating costs depend largely on site-specific factors such as: gas availability at the site, gas to coal delivered price differential, sulfur dioxide removal requirements, windbox pressure, existing burner throat diameters, and reburn zone residence time available. Based on the results of this CCT project, EER expects that most GR-LNB installations will achieve at least 60% NOX control when firing 10-15% gas. The capital cost estimate for installing a GR-LNB system on a 300 MW, unit is approximately $25/kW. plus the cost of a gas pipeline (if required). Operating costs are almost entirely related to the differential cost of the natural gas compared to coal.

None

1998-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Energy Savings from Window Attachments  

Broader source: Energy.gov (indexed) [DOE]

from from Window Attachments October 2013 Prepared for: Building Technologies Office Office of Energy Efficiency and Renewable Energy U.S. Department of Energy Prepared by: Lawrence Berkeley National Laboratory October 2013 Prepared for: Building Technologies Office Office of Energy Efficiency and Renewable Energy U.S. Department of Energy Prepared By: Lawrence Berkeley National Laboratory One Cyclotron Road, MS 90R3111 Berkeley, CA 94720 Authors: D. Charlie Curcija Mehry Yazdanian Christian Kohler Robert Hart Robin Mitchell Simon Vidanovic 1 ENERGY SAVINGS FROM WINDOW ATTACHMENTS TABLE OF CONTENTS: TABLE OF CONTENTS:................................................................................................... 1 1. EXECUTIVE SUMMARY ......................................................................................... 3

362

Energy Savings from Window Attachments  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

from from Window Attachments October 2013 Prepared for: Building Technologies Office Office of Energy Efficiency and Renewable Energy U.S. Department of Energy Prepared by: Lawrence Berkeley National Laboratory October 2013 Prepared for: Building Technologies Office Office of Energy Efficiency and Renewable Energy U.S. Department of Energy Prepared By: Lawrence Berkeley National Laboratory One Cyclotron Road, MS 90R3111 Berkeley, CA 94720 Authors: D. Charlie Curcija Mehry Yazdanian Christian Kohler Robert Hart Robin Mitchell Simon Vidanovic 1 ENERGY SAVINGS FROM WINDOW ATTACHMENTS TABLE OF CONTENTS: TABLE OF CONTENTS:................................................................................................... 1 1. EXECUTIVE SUMMARY ......................................................................................... 3

363

Processing automotive shredder fluff for a blast furnace injection  

E-Print Network [OSTI]

1 Processing automotive shredder fluff for a blast furnace injection S. GUIGNOT* , M. GAMET, N. *Corresponding author: s.guignot@brgm.fr, (+33)238643485 Abstract Automotive shredder fluff is a byproduct. Keywords: automotive shredder residues, fluff, iron recovery, process, blast furnace hal-01017129

Boyer, Edmond

364

Boiler Efficiency vs. Steam Quality- The Challenge of Creating Quality Steam Using Existing Boiler Efficiencies  

E-Print Network [OSTI]

A boiler works under pressure and it is not possible to see what is happening inside of it. The terms "wet steam" and "carry over" are every day idioms in the steam industry, yet very few people have ever seen these phenomena and the actual water...

Hahn, G.

365

Modification of boiler operating conditions for mercury emissions reductions in coal-fired utility boilers  

E-Print Network [OSTI]

matter and char, and cold-end air pollution control devices. There is also evidence that boiler is equipped with hot and cold precipitators and a tubular air preheater. A strategy for mercury control designated hazardous air pollutants by the US Environmental Protection Agency (EPA), mercury (Hg) has

Li, Ying

366

Simple Maintenance Saves Costly Furnace Repair/Replacement | Department of  

Broader source: Energy.gov (indexed) [DOE]

Simple Maintenance Saves Costly Furnace Repair/Replacement Simple Maintenance Saves Costly Furnace Repair/Replacement Simple Maintenance Saves Costly Furnace Repair/Replacement January 6, 2010 - 8:26am Addthis Chris Stewart Senior Communicator at DOE's National Renewable Energy Laboratory For the past few weeks, my forced-air gas furnace has been on the fritz. I blame this on the fact that I haven't been as diligent as I should have been with regular furnace maintenance, which includes: Checking the condition of the vent connection pipe and chimney Checking the physical integrity of the heat exchanger Adjusting the controls to provide optimum water and air temperature settings for both efficiency and comfort Having a technician perform a combustion-efficiency test Checking the combustion chamber for cracks. Testing for carbon monoxide

367

ENERGY STAR Qualified Gas Furnaces | Data.gov  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Gas Furnaces Gas Furnaces Consumer Data Apps Challenges Resources About Blogs Let's Talk Feedback Consumer You are here Data.gov » Communities » Consumer » Data ENERGY STAR Qualified Gas Furnaces Dataset Summary Description Gas Furnaces that have earned the ENERGY STAR are more efficient than standard models. ENERGY STAR is the trusted symbol for energy efficiency helping consumers save money and protect the environment through energy-efficient products and practices. More information on ENERGY STAR is available at www.energystar.gov. Tags {Furnaces,"Energy Star",products,"energy efficiency",efficient,"greenhouse gas emissions",climate,utility,utilities,household,savings,labels,partners,certification} Dataset Ratings Overall 0 No votes yet Data Utility

368

Furnace Standards Enforcement Policy Statement | Department of Energy  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Furnace Standards Enforcement Policy Statement Furnace Standards Enforcement Policy Statement Furnace Standards Enforcement Policy Statement On January 11, 2013, the Department of Justice, on behalf of DOE, and the American Public Gas Association (APGA) filed a joint motion asking the court to enter an agreement to settle APGA's challenge to DOE's June 27, 2011 Direct Final Rule. The settlement agreement would, among other things, vacate the energy conservation standards applicable to non-weatherized gas furnaces established in the DFR. In an exercise of its enforcement discretion, DOE will, during the pendency of the litigation, act in a manner consistent with the terms of the settlement agreement with regard to the enforcement of the standards. Furnace Standards Enforcement Policy Statement - April 5, 2013

369

Method of operating a centrifugal plasma arc furnace  

DOE Patents [OSTI]

A centrifugal plasma arc furnace is used to vitrify contaminated soils and other waste materials. An assessment of the characteristics of the waste is performed prior to introducing the waste into the furnace. Based on the assessment, a predetermined amount of iron is added to each batch of waste. The waste is melted in an oxidizing atmosphere into a slag. The added iron is oxidized into Fe{sub 3}O{sub 4}. Time of exposure to oxygen is controlled so that the iron does not oxidize into Fe{sub 2}O{sub 3}. Slag in the furnace remains relatively non-viscous and consequently it pours out of the furnace readily. Cooled and solidified slag produced by the furnace is very resistant to groundwater leaching. The slag can be safely buried in the earth without fear of contaminating groundwater. 3 figs.

Kujawa, S.T.; Battleson, D.M.; Rademacher, E.L. Jr.; Cashell, P.V.; Filius, K.D.; Flannery, P.A.; Whitworth, C.G.

1998-03-24T23:59:59.000Z

370

Method of operating a centrifugal plasma arc furnace  

DOE Patents [OSTI]

A centrifugal plasma arc furnace is used to vitrify contaminated soils and other waste materials. An assessment of the characteristics of the waste is performed prior to introducing the waste into the furnace. Based on the assessment, a predetermined amount of iron is added to each batch of waste. The waste is melted in an oxidizing atmosphere into a slag. The added iron is oxidized into Fe.sub.3 O.sub.4. Time of exposure to oxygen is controlled so that the iron does not oxidize into Fe.sub.2 O.sub.3. Slag in the furnace remains relatively non-viscous and consequently it pours out of the furnace readily. Cooled and solidified slag produced by the furnace is very resistant to groundwater leaching. The slag can be safely buried in the earth without fear of contaminating groundwater.

Kujawa, Stephan T. (Butte, MT); Battleson, Daniel M. (Butte, MT); Rademacher, Jr., Edward L. (Butte, MT); Cashell, Patrick V. (Butte, MT); Filius, Krag D. (Butte, MT); Flannery, Philip A. (Ramsey, MT); Whitworth, Clarence G. (Butte, MT)

1998-01-01T23:59:59.000Z

371

Utilization of ash from fluidized bed boilers  

SciTech Connect (OSTI)

Combustion ash from a fluidized bed combustion (FBC) boiler contains not only carbon, but also silica alumina, quicklime as a sorbent, and a calcium sulfate by-product. These substances react chemically during fluidized bed combustion, and with the addition of water, they start an ettringite reaction and solidify. We determined the conditions necessary for producing hard solids through the study of the composition, curing methods, and characteristics of the solidified ash. We then used two types of road base material, crushed stone and solidified ash from an FBC boiler, to construct a test road at a site with a great deal of heavy traffic. Construction began in 1985, and since then, periodic tests have been performed to evaluate the performance of the road base materials. The testing of the manufacturing techniques centered on the amount and manner that water was added to the mixture and the curing methods of the mixture. Additional testing focused on the handling of the ash powder, the mixtures, and the solidified ash. Since 1991, under the sponsorship of MITI, the Center for Coal Utilization, in conjunction with Naruto Salt Mfg., Ltd., Nippon Hodo Co., Ltd., and Kawasaki Heavy Industries, Ltd., has used the referenced results to undertake a joint research and development project aimed at the eventual practical application of the technology. In 1993, a pilot facility to solidify ash with the fluidized bed boiler of 75 t/h capacity was completed. At present, all the discharged ash from the pilot facility is being solidified, and experiments on solidification and road base application techniques are underway. Actual road base tests are also in progress, and we are continuing research to meet the national certification requirements for road base materials.

Takada, Tomoaki [Kawasaki Heavy Industries Co., Ltd., Akashi (Japan)

1994-12-31T23:59:59.000Z

372

E-Print Network 3.0 - arc furnace dust Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Collection: Renewable Energy 2 The Effec' of Furnace Design and Operation on Air Pollution Summary: chemical constituents in furnace gases arc very malodorous, or toxic, when...

373

Development of coke properties during the descent in the blast furnace.  

E-Print Network [OSTI]

??The efficiency in use of reducing agents in blast furnace (BF) ironmaking has been significantly improved over the years. At most blast furnaces, auxiliary fuels… (more)

Maria Lundgren

2013-01-01T23:59:59.000Z

374

Materials development for ultra-supercritical boilers  

SciTech Connect (OSTI)

Progress is reported on a US Department of Energy project to develop high temperature, corrosion resistant alloys for use in ultra-supercritical steam cycles. The aim is to achieve boiler operation at 1,400{sup o}F/5,000 psi steam conditions with 47% net cycle efficiency. Most ferritic steel tested such as T92 and Save 12 showed severe corrosion. Nickel-based alloys, especially IN 740 and CCA 617, showed greatest resistance to oxidation with no evidence of exfoliation. Laboratory and in-plant tests have begun. 2 figs.

NONE

2005-09-30T23:59:59.000Z

375

Sulfur capture in combination bark boilers  

SciTech Connect (OSTI)

A review of sulfur dioxide emission data for eight combination bark boilers in conjunction with the sulfur contents of the fuels reveals significant sulfur capture ranging from 10% to over 80% within the solid ash phase. Wood ash characteristics similar to activated carbon as well as the significant wood ash alkali oxide and carbonate fractions are believed responsible for the sulfur capture. Sulfur emissions from combination bark-fossil fuel firing are correlated to the sulfur input per ton of bark or wood residue fired.

Someshwar, A.V.; Jain, A.K. (National Council of the Paper Industry for Air and Stream Improvement, Gainesville, FL (United States))

1993-07-01T23:59:59.000Z

376

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Benefits of Efficient Windows Benefits of Efficient Windows Looking for information on windows for a new house? Window Selection Tool Selection Process Design Guidance Installation Looking for information on replacement windows? Window Selection Tool Assessing Options Selection Process Design Guidance Installation Energy & Cost Savings Energy efficient windows can substantially reduce the costs associated with heating and cooling. This section on Energy & Cost Savings illustrates these savings in both heating and cooling climates. Energy Savings Lower HVAC Costs High-performance windows not only provide reduced annual heating and cooling bills, they also reduce the peak heating and cooling loads. This section on Lower HVAC Cost illustrates how the use of high performance windows can help in reducing HVAC equipment sizing.

377

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Assessing Window Replacement Options Assessing Window Replacement Options What are the benefits of energy-efficient windows? Energy & Cost Savings Improved Comfort Less Condensation Increased Light & View Reduced Fading Lower HVAC Costs How is window performance measured? U-factor Solar Heat Gain Coefficient Visible Transmittance Air Leakage Condensation Resistance Are there financing and incentive programs? Overview of Utility and State Programs Performance Standards Energy Rating Programs Building America Program Documents Measure Guideline: Energy-Efficient Window Performance and Selection exit disclaimer Measure Guideline: Wood Window Repair, Rehabilitation, and Replacement exit disclaimer Whether you would like to improve the energy performance of your existing windows or replace them with new energy-efficient windows, several options are available. An energy audit can help you identify good strategies for more efficient windows and a more efficient house. Whichever energy efficiency measures you consider, the federal government as well as state, local, and utility programs may offer financing help or weatherization assistance.

378

3.4 Timeline Zoomable Window  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

.1 Zoomable and Scrollable Up: 3. Graphical User Interface .1 Zoomable and Scrollable Up: 3. Graphical User Interface Previous: 3.3 Legend Window Contents 3.4 Timeline Zoomable Window Figure 3.10: Initial display of the Timeline window of a 514 MB 16-process slog2 file with default preview resolution. Image timeline_popup Most of the advanced features in the SLOG-2 viewer are provided through a zoomable window. Jumpshot-4 has two zoomable windows: Timeline and Histogram. Figure 3.10 is the initial display of the Timeline window of a half-gigabyte 16-timeline slog2 file. The zoomable window consists of several concealable and removable components. In the center of the window is the zoomable and scrollable canvas. For the Timeline window, the center canvas is called the timeline canvas. Directly on top of the zoomable

379

Energy-Efficient Windows | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Energy-Efficient Windows Energy-Efficient Windows Energy-Efficient Windows June 18, 2012 - 8:39am Addthis Energy-efficient windows provide space heating and lighting to this sunny kitchen. | Photo courtesy of Emily Minton-Redfield for Jim Logan Architects. Energy-efficient windows provide space heating and lighting to this sunny kitchen. | Photo courtesy of Emily Minton-Redfield for Jim Logan Architects. What does this mean for me? The windows in your house let in light and air if they're operable, but they can also be weak spots in your home's thermal envelope. When replacing windows, purchase the most energy-efficient windows you can afford, because they will pay for themselves over their lifetimes. Windows provide our homes with light, warmth, and ventilation, but they can also negatively impact a home's energy efficiency. You can reduce energy

380

Energy-Efficient Windows | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Energy-Efficient Windows Energy-Efficient Windows Energy-Efficient Windows June 18, 2012 - 8:39am Addthis Energy-efficient windows provide space heating and lighting to this sunny kitchen. | Photo courtesy of Emily Minton-Redfield for Jim Logan Architects. Energy-efficient windows provide space heating and lighting to this sunny kitchen. | Photo courtesy of Emily Minton-Redfield for Jim Logan Architects. What does this mean for me? The windows in your house let in light and air if they're operable, but they can also be weak spots in your home's thermal envelope. When replacing windows, purchase the most energy-efficient windows you can afford, because they will pay for themselves over their lifetimes. Windows provide our homes with light, warmth, and ventilation, but they can also negatively impact a home's energy efficiency. You can reduce energy

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Evaluation of gas-reburning and low NO{sub x} burners on a wall fired boiler. Technical progress report No. 5, October 1--December 31, 1991  

SciTech Connect (OSTI)

Low NO{sub x} burners operate on the principle of delayed mixing between the coal fuel and burner air, so that less NO{sub x} is formed. Gas reburning is a combustion modification technique that consists of firing 80--85 percent of the fuel corresponding to the total heat release in the lower furnace. Reduction of NO{sub x} to molecular nitrogen (N{sub 2}) is accomplished via the downstream injection of the remaining fuel requirement in the form of natural gas (which also reduces the total SO{sub x} emissions). In a third stage, burnout air is injected at the lower temperatures in the upper furnace to complete the combustion process without generating significant additional NO{sub x}. The specific goal of this project is to demonstrate NO{sub x} emission reductions of 75 percent or more as a result of combing Low NO{sub x} Burners and Gas Reburning on a utility boiler having the design characteristics mentioned above. A Host Site Agreement has been signed by EER and a utility company in the State of Colorado: Public Service Company of Colorado (Cherokee Unit No. 3, 172 MW{sub e}) front wall fired boiler near Denver.

Not Available

1992-01-15T23:59:59.000Z

382

Boiler Gold Rush Prof. Johnny Brown (MATH 700)  

E-Print Network [OSTI]

Boiler Gold Rush Prof. Johnny Brown (MATH 700) jeb@math.purdue.edu #12;#12;#12;David McCullough, Jr help Always be prepared #12;Boiler Gold Rush Prof. Johnny Brown (MATH 700) jeb@math.purdue.edu #12;

Brown, Johnny E.

383

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Windows for New Construction Windows for New Construction Window Selection Tool Use the Window Selection Tool for new construction to compare performance of 20 different window types in your location. The Window Selection Tool will take you through a series of design conditions pertaining to your design and location. It is a step-by-step decision-making tool to help determine the most energy efficient window for your house. Window Selection Tool Window Selection Process This section provides step-by-step guidance on the window selection process for new construction windows including issues of code, energy, durability, and installation. Design Guidance This section provides Design Guides that examine the energy use impacts of new windows for homes in hot, mixed and cold climates. They show the the impact of orientation, window area, and shading. The energy use has been calculated for various window design variations including 5 orientations (equal, north, east, south, and west), 3 glazing areas, 20 glazing types, and 5 shading conditions.

384

Learning Windows Ibraheem A. Alhashim  

E-Print Network [OSTI]

. They suggest using a trainable classifier to learn a distance function that improves their fitting procedure. However, they do not implement such classifier and relay on a heuristic derived from their experimentation to ground truth of 744 windows from 40 test images. We will use a subset of the database they used for our

Zhang, Richard "Hao"

385

Best Management Practice: Boiler/Steam Systems | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Best Management Practice: Boiler/Steam Systems Best Management Practice: Boiler/Steam Systems Best Management Practice: Boiler/Steam Systems October 7, 2013 - 3:17pm Addthis Boilers and steam generators are commonly used in large heating systems, institutional kitchens, or in facilities where large amounts of process steam are used. This equipment consumes varying amounts of water depending on system size, the amount of steam used, and the amount of condensate returned. Operation and Maintenance Options To maintain water efficiency in operations and maintenance, Federal agencies should: Develop and implement a routine inspection and maintenance program to check steam traps and steam lines for leaks. Repair leaks and replace faulty steam traps as soon as possible. Develop and implement a boiler tuning program to be completed a minimum of

386

Base load fuel comsumption with radiant boiler simulation  

SciTech Connect (OSTI)

The operating point of an oil fired radiant boiler, 580 Megawatt capacity, is critical in maximizing the availability, performance, reliability, and maintainability of a power producing system. Operating the unit above the design operating point causes outages to occur sooner than scheduled. When the boiler is operated below the design operating point, fuel is wasted because the quantity of fuel required to operate a radiant boiler is the same, whether the design setpoint is maintained or not. This paper demonstrates by means of simulation software that the boiler design setpoints is critical to fuel consumption and optimum output megawatts. A boiler with this capacity is used to provide a portion of the base load of an electric utility in order to sustain revenues and maintain reliable generation.

Shwehdi, M.H. (Pennsylvania State Univ., Wilkes-Barre, Lehman, PA (United States)); Hughes, C.M. (Naval Aviation Depot, NAS Jacksonville, Jacksonville, FL (United States)); Quasem, M.A. (Howard Univ. School of Business, Washington, DC (United States))

1992-12-01T23:59:59.000Z

387

High Performance Windows Volume Purchase: Information Resources  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Information Information Resources to someone by E-mail Share High Performance Windows Volume Purchase: Information Resources on Facebook Tweet about High Performance Windows Volume Purchase: Information Resources on Twitter Bookmark High Performance Windows Volume Purchase: Information Resources on Google Bookmark High Performance Windows Volume Purchase: Information Resources on Delicious Rank High Performance Windows Volume Purchase: Information Resources on Digg Find More places to share High Performance Windows Volume Purchase: Information Resources on AddThis.com... Home About For Builders For Residential Buyers For Light Commercial Buyers For Manufacturers For Utilities Information Resources Information Resources Numerous publications will be available to help educate buyers, product

388

LBNL Window & Daylighting Software -- RESFEN  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

SYSTEM REQUIREMENTS GET A COPY DOCUMENTATION KNOWLEDGE BASE Overview Today's energy-efficient windows can dramatically lower the heating and cooling costs associated with windows while increasing occupant comfort and minimizing window surface condensation problems. However, consumers are often confused about how to pick the most efficient window for a residence. Product information typically offers window properties: U-factors or R-values, Solar Heat Gain Coefficients or Shading Coefficients, and air leakage rates. However, the relative importance of these properties depends on site- and building-specific conditions. Furthermore, these properties are based on static evaluation conditions that are very different from the real situation a window will be used in.

389

Evaluation of Iron Aluminide Weld Overlays for Erosion-Corrosion Resistant Boiler Tube Coatings in Low NOx Boilers  

SciTech Connect (OSTI)

Iron aluminide weld overlays containing ternary additions and thermal spray coatings are being investigated for corrosion protection of boiler tubes in Low NO{sub x} burners. The primary objective of the research is to identify overlay and thermal spray compositions that provide corrosion protection of waterwall boiler tubes.

Regina, J.R.; Lim, M.; Barbosa, N., DuPont, J.N.; Marder, A.R.

2000-04-28T23:59:59.000Z

390

On the modelling of coal combustion in a 550 MWel coal-fired utility boiler  

Science Journals Connector (OSTI)

The furnace of a pulverised coal-fired utility boiler with an electrical output of 550 MW, the dimensions of 19m x 15m x 48m and 32 swirl burners located on four elevations is considered. Coal combustion is described by a four-step reaction scheme. The model covers two heterogeneous reactions for pyrolysis and char combustion and three gas-phase reactions for the oxidation of volatile matter. A standard k; ?-model is used for the description of turbulence. The interaction between turbulence and chemistry is modelled using the Eddy Dissipation Concept (EDC). Radiation is computed by means of the Discrete Ordinates method. The discretisation is based on a non-staggered finite-volume approach. The coupling of velocities and pressure is achieved by the SIMPLEC-method, and the UPWIND or MLU discretisation schemes are used for the computation of the convective fluxes. All gas phase transport equations are formulated in the Eulerian way in general curvilinear co-ordinates allowing an accurate treatment of boundaries and a very good distribution of the grid lines. The coal particle phase is either treated with a Eulerian description assuming no slip between the gas and particle phase, or with a Lagrangian description. The Lagrangian approach to the particle phase is fully coupled with the gas phase using the Particle-Source-in-Cell method and taking the turbulence effects of the gas phase on particle dispersion into account. The differences in the predictions using the Eulerian and Eulerian/Lagrangian approaches are elaborated by comparing the computational results with in-furnace measurements of carbon monoxide, carbon dioxide and oxygen concentrations.

Hermann Knaus; Uwe Schnell; Klaus R. G. Hein

2001-01-01T23:59:59.000Z

391

BOILER MATERIALS FOR ULTRASUPERCRITICAL COAL POWER PLANTS  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) and the Ohio Coal Development Office (OCDO) have recently initiated a project aimed at identifying, evaluating, and qualifying the materials needed for the construction of the critical components of coal-fired boilers capable of operating at much higher efficiencies than current generation of supercritical plants. This increased efficiency is expected to be achieved principally through the use of ultrasupercritical steam conditions (USC). The project goal initially was to assess/develop materials technology that will enable achieving turbine throttle steam conditions of 760 C (1400 F)/35 MPa (5000 psi), although this goal for the main steam temperature had to be revised down to 732 C (1350 F), based on a preliminary assessment of material capabilities. The project is intended to build further upon the alloy development and evaluation programs that have been carried out in Europe and Japan. Those programs have identified ferritic steels capable of meeting the strength requirements of USC plants up to approximately 620 C (1150 F) and nickel-based alloys suitable up to 700 C (1300 F). In this project, the maximum temperature capabilities of these and other available high-temperature alloys are being assessed to provide a basis for materials selection and application under a range of conditions prevailing in the boiler. This report provides a quarterly status report for the period of July 1 to September 30, 2004.

R. Viswanathan; K. Coleman; J. Shingledecker; J. Sarver; G. Stanko; M. Borden; W. Mohn; S. Goodstine; I. Perrin

2005-01-31T23:59:59.000Z

392

BOILER MATERIALS FOR ULTRASUPERCRITICAL COAL POWER PLANTS  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) and the Ohio Coal Development Office (OCDO) have recently initiated a project aimed at identifying, evaluating, and qualifying the materials needed for the construction of the critical components of coal-fired boilers capable of operating at much higher efficiencies than current generation of supercritical plants. This increased efficiency is expected to be achieved principally through the use of ultrasupercritical steam conditions (USC). The project goal initially was to assess/develop materials technology that will enable achieving turbine throttle steam conditions of 760 C (1400 F)/35 MPa (5000 psi), although this goal for the main steam temperature had to be revised down to 732 C (1350 F), based on a preliminary assessment of material capabilities. The project is intended to build further upon the alloy development and evaluation programs that have been carried out in Europe and Japan. Those programs have identified ferritic steels capable of meeting the strength requirements of USC plants up to approximately 620 C (1150 F) and nickel-based alloys suitable up to 700 C (1300 F). In this project, the maximum temperature capabilities of these and other available high-temperature alloys are being assessed to provide a basis for materials selection and application under a range of conditions prevailing in the boiler. This report provides a quarterly status report for the period of July 1 to September 30, 2004.

R. Viswanathan; K. Coleman; J. Shingledecker; J. Sarver; G. Stanko; M. Borden; W. Mohn; S. Goodstine; I. Perrin

2005-04-27T23:59:59.000Z

393

Boiler Materials for Ultrasupercritical Coal Power Plants  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) and the Ohio Coal Development Office (OCDO) have recently initiated a project aimed at identifying, evaluating, and qualifying the materials needed for the construction of the critical components of coal-fired boilers capable of operating at much higher efficiencies than current generation of supercritical plants. This increased efficiency is expected to be achieved principally through the use of ultrasupercritical steam conditions (USC). The project goal initially was to assess/develop materials technology that will enable achieving turbine throttle steam conditions of 760 C (1400 F)/35 MPa (5000 psi), although this goal for the main steam temperature had to be revised down to 732 C (1350 F), based on a preliminary assessment of material capabilities. The project is intended to build further upon the alloy development and evaluation programs that have been carried out in Europe and Japan. Those programs have identified ferritic steels capable of meeting the strength requirements of USC plants up to approximately 620 C (1150 F) and nickel-based alloys suitable up to 700 C (1300 F). In this project, the maximum temperature capabilities of these and other available high-temperature alloys are being assessed to provide a basis for materials selection and application under a range of conditions prevailing in the boiler. This report provides a quarterly status report for the period of July 1 to September 30, 2004.

R. Viswanathan; J. Sarver; M. Borden; K. Coleman; J. Blough; S. Goodstine; R.W. Swindeman; W. Mohn; I. Perrin

2003-04-21T23:59:59.000Z

394

BOILER MATERIALS FOR ULTRASUPERCRITICAL COAL POWER PLANTS  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) and the Ohio Coal Development Office (OCDO) have recently initiated a project aimed at identifying, evaluating, and qualifying the materials needed for the construction of the critical components of coal-fired boilers capable of operating at much higher efficiencies than current generation of supercritical plants. This increased efficiency is expected to be achieved principally through the use of ultrasupercritical steam conditions (USC). A limiting factor in this can be the materials of construction. The project goal is to assess/develop materials technology that will enable achieving turbine throttle steam conditions of 760 C (1400 F)/35 MPa (5000 psi). This goal seems achievable based on a preliminary assessment of material capabilities. The project is further intended to build further upon the alloy development and evaluation programs that have been carried out in Europe and Japan. Those programs have identified ferritic steels capable of meeting the strength requirements of USC plants up to approximately 620 C (1150 F) and nickel-based alloys suitable up to 700 C (1300 F). In this project, the maximum temperature capabilities of these and other available high-temperature alloys are being assessed to provide a basis for materials selection and application under a range of conditions prevailing in the boiler. This report provides a quarterly status report for the period of July 1 to September 30, 2005.

R. Viswanathan; K. Coleman; J. Shingledecker; J. Sarver; G. Stanko; M. Borden; W. Mohn; S. Goodstine; I. Perrin

2005-10-27T23:59:59.000Z

395

BOILER MATERIALS FOR ULTRASUPERCRITICAL COAL POWER PLANTS  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) and the Ohio Coal Development Office (OCDO) have recently initiated a project aimed at identifying, evaluating, and qualifying the materials needed for the construction of the critical components of coal-fired boilers capable of operating at much higher efficiencies than current generation of supercritical plants. This increased efficiency is expected to be achieved principally through the use of ultrasupercritical steam conditions (USC). The project goal initially was to assess/develop materials technology that will enable achieving turbine throttle steam conditions of 760 C (1400 F)/35 MPa (5000 psi), although this goal for the main steam temperature had to be revised down to 732 C (1350 F), based on a preliminary assessment of material capabilities. The project is intended to build further upon the alloy development and evaluation programs that have been carried out in Europe and Japan. Those programs have identified ferritic steels capable of meeting the strength requirements of USC plants up to approximately 620 C (1150 F) and nickel-based alloys suitable up to 700 C (1300 F). In this project, the maximum temperature capabilities of these and other available high-temperature alloys are being assessed to provide a basis for materials selection and application under a range of conditions prevailing in the boiler. This report provides a quarterly status report for the period of October 1 to December 30, 2003.

R. Viswanathan; K. Coleman; J. Shingledecker; J. Sarver; G. Stanko; W. Mohn; M. Borden; S. Goodstine; I. Perrin

2004-04-23T23:59:59.000Z

396

BOILER MATERIALS FOR ULTRASUPERCRITICAL COAL POWER PLANTS  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) and the Ohio Coal Development Office (OCDO) have recently initiated a project aimed at identifying, evaluating, and qualifying the materials needed for the construction of the critical components of coal-fired boilers capable of operating at much higher efficiencies than current generation of supercritical plants. This increased efficiency is expected to be achieved principally through the use of ultrasupercritical steam conditions (USC). The project goal initially was to assess/develop materials technology that will enable achieving turbine throttle steam conditions of 760 C (1400 F)/35 MPa (5000 psi), although this goal for the main steam temperature had to be revised down to 732 C (1350 F), based on a preliminary assessment of material capabilities. The project is intended to build further upon the alloy development and evaluation programs that have been carried out in Europe and Japan. Those programs have identified ferritic steels capable of meeting the strength requirements of USC plants up to approximately 620 C (1150 F) and nickel-based alloys suitable up to 700 C (1300 F). In this project, the maximum temperature capabilities of these and other available high-temperature alloys are being assessed to provide a basis for materials selection and application under a range of conditions prevailing in the boiler. This report provides a quarterly status report for the period of April to June 30, 2004.

R. Viswanathan; K. Coleman; J. Shingledecker; J. Sarver; G. Stanko; W. Mohn; M. Borden; S. Goodstine; I. Perrin

2004-07-30T23:59:59.000Z

397

Boiler Materials For Ultrasupercritical Coal Power Plants  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) and the Ohio Coal Development Office (OCDO) have recently initiated a project aimed at identifying, evaluating, and qualifying the materials needed for the construction of the critical components of coal-fired boilers capable of operating at much higher efficiencies than current generation of supercritical plants. This increased efficiency is expected to be achieved principally through the use of ultrasupercritical steam conditions (USC). A limiting factor in this can be the materials of construction. The project goal is to assess/develop materials technology that will enable achieving turbine throttle steam conditions of 760 C (1400 F)/35 MPa (5000 psi). This goal seems achievable based on a preliminary assessment of material capabilities. The project is further intended to build further upon the alloy development and evaluation programs that have been carried out in Europe and Japan. Those programs have identified ferritic steels capable of meeting the strength requirements of USC plants up to approximately 620 C (1150 F) and nickel-based alloys suitable up to 700 C (1300 F). In this project, the maximum temperature capabilities of these and other available high-temperature alloys are being assessed to provide a basis for materials selection and application under a range of conditions prevailing in the boiler. This report provides a quarterly status report for the period of July 1 to September 30, 2006.

R. Viswanathan; K. Coleman; J. Shingledecker; J. Sarver; G. Stanko; M. Borden; W. Mohn; S. Goodstine; I. Perrin

2006-09-30T23:59:59.000Z

398

BOILER MATERIALS FOR ULTRASUPERCRITICAL COAL POWER PLANTS  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) and the Ohio Coal Development Office (OCDO) have recently initiated a project aimed at identifying, evaluating, and qualifying the materials needed for the construction of the critical components of coal-fired boilers capable of operating at much higher efficiencies than current generation of supercritical plants. This increased efficiency is expected to be achieved principally through the use of ultrasupercritical steam conditions (USC). The project goal initially was to assess/develop materials technology that will enable achieving turbine throttle steam conditions of 760 C (1400 F)/35 MPa (5000 psi), although this goal for the main steam temperature had to be revised down to 732 C (1350 F), based on a preliminary assessment of material capabilities. The project is intended to build further upon the alloy development and evaluation programs that have been carried out in Europe and Japan. Those programs have identified ferritic steels capable of meeting the strength requirements of USC plants up to approximately 620 C (1150 F) and nickel-based alloys suitable up to 700 C (1300 F). In this project, the maximum temperature capabilities of these and other available high-temperature alloys are being assessed to provide a basis for materials selection and application under a range of conditions prevailing in the boiler. This report provides a quarterly status report for the period of October 1 to December 30, 2003.

K. Coleman; R. Viswanathan; J. Shingledecker; J. Sarver; G. Stanko; W. Mohn; M. Borden; S. Goodstine; I. Perrin

2004-01-23T23:59:59.000Z

399

BOILER MATERIALS FOR ULTRASUPERCRITICAL COAL POWER PLANTS  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) and the Ohio Coal Development Office (OCDO) have recently initiated a project aimed at identifying, evaluating, and qualifying the materials needed for the construction of the critical components of coal-fired boilers capable of operating at much higher efficiencies than current generation of supercritical plants. This increased efficiency is expected to be achieved principally through the use of ultrasupercritical steam conditions (USC). A limiting factor in this can be the materials of construction. The project goal is to assess/develop materials technology that will enable achieving turbine throttle steam conditions of 760 C (1400 F)/35 MPa (5000 psi). This goal seems achievable based on a preliminary assessment of material capabilities. The project is further intended to build further upon the alloy development and evaluation programs that have been carried out in Europe and Japan. Those programs have identified ferritic steels capable of meeting the strength requirements of USC plants up to approximately 620 C (1150 F) and nickel-based alloys suitable up to 700 C (1300 F). In this project, the maximum temperature capabilities of these and other available high-temperature alloys are being assessed to provide a basis for materials selection and application under a range of conditions prevailing in the boiler. This report provides a quarterly status report for the period of April 1 to June 30, 2005.

R. Viswanathan; K. Coleman; J. Shingledecker; J. Sarver; G. Stanko; M. Borden; W. Mohn; S. Goodstine; I. Perrin

2005-08-01T23:59:59.000Z

400

Boiler Materials for Ultrasupercritical Coal Power Plants  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) and the Ohio Coal Development Office (OCDO) have recently initiated a project aimed at identifying, evaluating, and qualifying the materials needed for the construction of the critical components of coal-fired boilers capable of operating at much higher efficiencies than current generation of supercritical plants. This increased efficiency is expected to be achieved principally through the use of ultrasupercritical steam conditions (USC). A limiting factor in this can be the materials of construction. The project goal is to assess/develop materials technology that will enable achieving turbine throttle steam conditions of 760 C (1400 F)/35 MPa (5000 psi). This goal seems achievable based on a preliminary assessment of material capabilities. The project is further intended to build further upon the alloy development and evaluation programs that have been carried out in Europe and Japan. Those programs have identified ferritic steels capable of meeting the strength requirements of USC plants up to approximately 620 C (1150 F) and nickel-based alloys suitable up to 700 C (1300 F). In this project, the maximum temperature capabilities of these and other available high-temperature alloys are being assessed to provide a basis for materials selection and application under a range of conditions prevailing in the boiler. This report provides a quarterly status report for the period of October 1 to December 30, 2005.

R. Viswanathan; K. Coleman; J. Shingledecker; J. Sarver; G. Stanko; M. Borden; W. Mohn; S. Goodstine; I. Perrin

2006-01-31T23:59:59.000Z

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Boiler Materials for Ultrasupercritical Coal Power Plants  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) and the Ohio Coal Development Office (OCDO) have recently initiated a project aimed at identifying, evaluating, and qualifying the materials needed for the construction of the critical components of coal-fired boilers capable of operating at much higher efficiencies than current generation of supercritical plants. This increased efficiency is expected to be achieved principally through the use of ultrasupercritical steam conditions (USC). A limiting factor in this can be the materials of construction. The project goal is to assess/develop materials technology that will enable achieving turbine throttle steam conditions of 760 C (1400 F)/35 MPa (5000 psi). This goal seems achievable based on a preliminary assessment of material capabilities. The project is further intended to build further upon the alloy development and evaluation programs that have been carried out in Europe and Japan. Those programs have identified ferritic steels capable of meeting the strength requirements of USC plants up to approximately 620 C (1150 F) and nickel-based alloys suitable up to 700 C (1300 F). In this project, the maximum temperature capabilities of these and other available high-temperature alloys are being assessed to provide a basis for materials selection and application under a range of conditions prevailing in the boiler. This report provides a quarterly status report for the period of April 1 to June 30, 2006.

R. Viswanathan; K. Coleman; J. Shingledecker; J. Sarver; G. Stanko; M. Borden; W. Mohn; S. Goodstine; I. Perrin

2006-07-17T23:59:59.000Z

402

BOILER MATERIALS FOR ULTRASUPERCRITICAL COAL POWER PLANTS  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) and the Ohio Coal Development Office (OCDO) have recently initiated a project aimed at identifying, evaluating, and qualifying the materials needed for the construction of the critical components of coal-fired boilers capable of operating at much higher efficiencies than current generation of supercritical plants. This increased efficiency is expected to be achieved principally through the use of ultrasupercritical steam conditions (USC). The project goal initially was to assess/develop materials technology that will enable achieving turbine throttle steam conditions of 760 C (1400 F)/35 MPa (5000 psi), although this goal for the main steam temperature had to be revised down to 732 C (1350 F), based on a preliminary assessment of material capabilities. The project is intended to build further upon the alloy development and evaluation programs that have been carried out in Europe and Japan. Those programs have identified ferritic steels capable of meeting the strength requirements of USC plants up to approximately 620 C (1150 F) and nickel-based alloys suitable up to 700 C (1300 F). In this project, the maximum temperature capabilities of these and other available high-temperature alloys are being assessed to provide a basis for materials selection and application under a range of conditions prevailing in the boiler. This report provides a quarterly status report for the period of April to June 30, 2004.

R. Viswanathan; K. Coleman; J. Shingledecker; J. Sarver; G. Stanko; M. Borden; W. Mohn; S. Goodstine; I. Perrin

2004-10-30T23:59:59.000Z

403

Boiler Materials for Ultrasupercritical Coal Power Plants  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) and the Ohio Coal Development Office (OCDO) have recently initiated a project aimed at identifying, evaluating, and qualifying the materials needed for the construction of the critical components of coal-fired boilers capable of operating at much higher efficiencies than current generation of supercritical plants. This increased efficiency is expected to be achieved principally through the use of ultrasupercritical steam conditions (USC). A limiting factor in this can be the materials of construction. The project goal is to assess/develop materials technology that will enable achieving turbine throttle steam conditions of 760 C (1400 F)/35 MPa (5000 psi). This goal seems achievable based on a preliminary assessment of material capabilities. The project is further intended to build further upon the alloy development and evaluation programs that have been carried out in Europe and Japan. Those programs have identified ferritic steels capable of meeting the strength requirements of USC plants up to approximately 620 C (1150 F) and nickel-based alloys suitable up to 700 C (1300 F). In this project, the maximum temperature capabilities of these and other available high-temperature alloys are being assessed to provide a basis for materials selection and application under a range of conditions prevailing in the boiler. This report provides a quarterly status report for the period of January 1 to March 31, 2006.

R. Viswanathan; K. Coleman; J. Shingledecker; J. Sarver; G. Stanko; M. Borden; W. Mohn; S. Goodstine; I. Perrin

2006-04-20T23:59:59.000Z

404

LBNL Window & Daylighting Software -- WINDOW 6 Research Version  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

(6.3.9) (6.3.9) October 2010 Last Updated: 11/07/2010 Complex Glazing Features for WINDOW6 The Research Version of WINDOW 6 has the following modeling capabilities: Shading Layer Library: A Shading Layer Library has been added to define shading systems, such as venetian blinds and diffusing layers, which can then be added as layers in the Glazing System Library. Shade Material Library: A Shading Material Library has been added to define materials to be used in the Shading Layer Library. Properties defined in this library include shade material reflectance and absorptance (in the solar, visible and IR wavelengths ranges), as well as the conductivity of the material. Glazing System Library In the “Layers” section of the Glazing System definition, it is now possible to specify either a glass layer or a shading layer. The shading system is chosen from the Shading Layer Library.

405

Trace elements found in the fuel and in-furnace fine particles collected from 80MW BFB combusting solid recovered fuel  

Science Journals Connector (OSTI)

The main fine particle (dp SRF) combustion the main elements were found to be: Ba, Br, Cr, Cu, Fe, Pb, Sb, Sn and Zn. Fine particle composition is presented for 6 different furnace heights of a bubbling fluidized bed (BFB) boiler. As the fine particles are formed of vaporized ash species the experimental results are discussed with the support of thermodynamic equilibrium modeling for estimating the forms of the gaseous elements in the furnace. The occurrence of bromine was found to be similar to chlorine as the main forms of bromine in the furnace were estimated to be KBr(g) and NaBr(g) complemented with CuBr3(g). It is proposed that the trace elements mentioned originate mainly from plastics and rubber where they are used as production additives, stabilisers, dyes, colorants and flame retardants. Cr, Cu and Zn may originate to a large extent from alloys and other metallic impurities. SEM-EDS analyses carried out for the SRF supports the postulated origin of the elements.

P. Vainikka; D. Lindberg; A. Moilanen; H. Ollila; M. Tiainen; J. Silvennoinen; M. Hupa

2013-01-01T23:59:59.000Z

406

Measurement of gas species, temperatures, coal burnout, and wall heat fluxes in a 200 MWe lignite-fired boiler with different overfire air damper openings  

SciTech Connect (OSTI)

Measurements were performed on a 200 MWe, wall-fired, lignite utility boiler. For different overfire air (OFA) damper openings, the gas temperature, gas species concentration, coal burnout, release rates of components (C, H, and N), furnace temperature, and heat flux and boiler efficiency were measured. Cold air experiments for a single burner were conducted in the laboratory. The double-swirl flow pulverized-coal burner has two ring recirculation zones starting in the secondary air region in the burner. As the secondary air flow increases, the axial velocity of air flow increases, the maxima of radial velocity, tangential velocity and turbulence intensity all increase, and the swirl intensity of air flow and the size of recirculation zones increase slightly. In the central region of the burner, as the OFA damper opening widens, the gas temperature and CO concentration increase, while the O{sub 2} concentration, NOx concentration, coal burnout, and release rates of components (C, H, and N) decrease, and coal particles ignite earlier. In the secondary air region of the burner, the O{sub 2} concentration, NOx concentration, coal burnout, and release rates of components (C, H, and N) decrease, and the gas temperature and CO concentration vary slightly. In the sidewall region, the gas temperature, O{sub 2} concentration, and NOx concentration decrease, while the CO concentration increases and the gas temperature varies slightly. The furnace temperature and heat flux in the main burning region decrease appreciably, but increase slightly in the burnout region. The NOx emission decreases from 1203.6 mg/m{sup 3} (6% O{sub 2}) for a damper opening of 0% to 511.7 mg/m{sup 3} (6% O{sub 2}) for a damper opening of 80% and the boiler efficiency decreases from 92.59 to 91.9%. 15 refs., 17 figs., 3 tabs.

Jianping Jing; Zhengqi Li; Guangkui Liu; Zhichao Chen; Chunlong Liu [Harbin Institute of Technology, Harbin (China). School of Energy Science and Engineering

2009-07-15T23:59:59.000Z

407

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Sash Replacement Sash Replacement DIY Network: How to Install a Window Sash Replacement Kit The DIY Network experts show you how to remove the window sash from an old double-hung window and install a new energy-saving sash replacement kit: How to Install a Window Sash Replacement Kit exit disclaimer . Sash replacement may be an alternative to a full window replacement or an insert window into an existing frame. The physical condition of the existing window must be good-there should be no moisture or air leakage. An energy auditor or replacement contractor may help you determine if a sash replacement is a viable option based on your homes window and wall conditions. Many manufacturers offer replacement sash kits, which include jamb liners to ensure good operability and fit. This option allows for relatively easy

408

IT Administrator's Guide to Using Windows Vista  

E-Print Network [OSTI]

IT Administrator's Guide to Using Windows Vista® for Sustainable IT Success Published: February Administrator's Guide to Using Windows Vista for Sustainable IT Success Contents Executive Summary ................................................................................................ 3 Sustainable IT Goals

Narasayya, Vivek

409

Combustion characteristics and NOx emissions of two kinds of swirl burners in a 300-MWe wall-fired pulverized-coal utility boiler  

SciTech Connect (OSTI)

Measurements were performed in a 300-MWe wall-fired pulverized-coal utility boiler. Enhanced ignition-dual register (EI-DR) burners and centrally fuel rich (CFR) swirl coal combustion burners were installed in the bottom row of the furnace during experiments. Local mean concentrations of O{sub 2}, CO, CO{sub 2} and NOx gas species, gas temperatures, and char burnout were determined in the region of the two types of burners. For centrally fuel rich swirl coal combustion burners, local mean CO concentrations, gas temperatures and the temperature gradient are higher and mean concentrations of O{sub 2} and NOx along the jet flow direction in the burner region are lower than for the enhanced ignition-dual register burners. Moreover, the mean O{sub 2} concentration is higher and the gas temperature and mean CO concentration are lower in the side wall region. For centrally fuel rich swirl coal combustion burners in the bottom row, the combustion efficiency of the boiler increases from 96.73% to 97.09%, and NOx emission decreases from 411.5 to 355 ppm at 6% O{sub 2} compared to enhanced ignition-dual register burners and the boiler operates stably at 110 MWe without auxiliary fuel oil.

Li, Z.Q.; Jing, J.P.; Chen, Z.C.; Ren, F.; Xu, B.; Wei, H.D.; Ge, Z.H. [Harbin Institute for Technology, Harbin (China). School for Energy Science & Engineering

2008-07-01T23:59:59.000Z

410

Decentralized robust PI controller design for an industrial boiler Batool Labibi a,*, Horacio Jose Marquez b  

E-Print Network [OSTI]

Decentralized robust PI controller design for an industrial boiler Batool Labibi a,*, Horacio Jose in revised form 23 April 2008 Accepted 23 April 2008 Keywords: Industrial utility boiler Internal model boiler, a control oriented nonlinear model for the boiler is identified. The nonlinearity of the system

Marquez, Horacio J.

411

Boiler Maximum Achievable Control Technology (MACT) Technical Assistance- Fact Sheet, May 2014  

Broader source: Energy.gov [DOE]

Fact sheet about the Boiler Maximum Achievable Control Technology (MACT) Technical Assistance Program

412

Simulating Complex Window Systems using BSDF Data  

E-Print Network [OSTI]

Daylighting, Design tools and methods INTRODUCTION Simulations enable designers and engineers to evaluate and select the best available window solutions

Konstantoglou, Maria

2011-01-01T23:59:59.000Z

413

A Design Guide for Early-Market Electrochromic Windows  

E-Print Network [OSTI]

Guide for Early-Market Electrochromic Windows. CaliforniaGuide for Early-Market Electrochromic Windows. CaliforniaGUIDE FOR EARLY-MARKET ELECTROCHROMIC WINDOWS Prepared For:

2006-01-01T23:59:59.000Z

414

A Design Guide for Early-Market Electrochromic Windows  

E-Print Network [OSTI]

Office worker preferences of electrochromic windows: a pilotDetails for an Electrochromic Window Wall Attached arethe performance of the electrochromic windows. Proceedings

2006-01-01T23:59:59.000Z

415

GREENHOUSE GAS EMISSIONS CONTROL BY OXYGEN FIRING IN CIRCULATING FLUIDIZED BED BOILERS  

SciTech Connect (OSTI)

Given that fossil fuel fired power plants are among the largest and most concentrated producers of CO{sub 2} emissions, recovery and sequestration of CO{sub 2} from the flue gas of such plants has been identified as one of the primary means for reducing anthropogenic CO{sub 2} emissions. In this study, ALSTOM Power Inc. (ALSTOM) has investigated several coal fired power plant configurations designed to capture CO{sub 2} from effluent gas streams for use or sequestration. Burning fossil fuels in mixtures of oxygen and recirculated flue gas (made principally of CO{sub 2}) essentially eliminates the presence of atmospheric nitrogen in the flue gas. The resulting flue gas is comprised primarily of CO{sub 2}. Oxygen firing in utility scale Pulverized Coal (PC) fired boilers has been shown to be a more economical method for CO{sub 2} capture than amine scrubbing (Bozzuto, et al., 2001). Additionally, oxygen firing in Circulating Fluid Bed Boilers (CFB's) can be more economical than in PC or Stoker firing, because recirculated gas flow can be reduced significantly. Oxygen-fired PC and Stoker units require large quantities of recirculated flue gas to maintain acceptable furnace temperatures. Oxygen-fired CFB units, on the other hand, can accomplish this by additional cooling of recirculated solids. The reduced recirculated gas flow with CFB units results in significant Boiler Island cost savings. Additionally, ALSTOM has identified several advanced/novel plant configurations, which improve the efficiency and cost of the CO{sub 2} product cleanup and compression process. These advanced/novel concepts require long development efforts. An economic analysis indicates that the proposed oxygen-firing technology in circulating fluidized boilers could be developed and deployed economically in the near future in enhanced oil recovery (EOR) applications or enhanced gas recovery (EGR), such as coal bed methane recovery. ALSTOM received a Cooperative Agreement from the US Department of Energy National Energy Technology Laboratory (DOE) in 2001 to carry out a project entitled ''Greenhouse Gas Emissions Control by Oxygen Firing in Circulating Fluidized Bed Boilers.'' This two-phased project is in effect from September 28, 2001, to October 27, 2004. (U.S. DOE NETL Cooperative Agreement No. DE-FC26-01NT41146). Phase I consisted of an evaluation of the technical feasibility and economics of alternate CO{sub 2} capture technologies applied to Greenfield US coal-fired electric generation power plants, and supporting bench-scale testing. And Phase II consists of pilot-scale testing, supporting a refined performance and economic evaluation of the oxygen-fired AFC concept. Phase I, detailed in this report, entails a comprehensive study evaluating the technical feasibility and economics of alternate CO{sub 2} capture technologies applied to Greenfield US coal-fired electric generation power plants. Thirteen separate but related cases (listed below), representing various levels of technology development, were evaluated as described herein. The first seven cases represent coal combustion cases in CFB type equipment. The next four cases represent Integrated Gasification Combined Cycle (IGCC) systems. The last two cases represent advanced Chemical Looping systems, which were completely paid for by ALSTOM and included herein for completeness.

Nsakala ya Nsakala; Gregory N. Liljedahl

2003-05-15T23:59:59.000Z

416

BOILER MATERIALS FOR ULTRASUPERCRITICAL COAL POWER PLANTS  

SciTech Connect (OSTI)

The principal objective of this project is to develop materials technology for use in ultrasupercritical (USC) plant boilers capable of operating with 760 C (1400 F), 35 MPa (5000 psi) steam. In the 21st century, the world faces the critical challenge of providing abundant, cheap electricity to meet the needs of a growing global population while at the same time preserving environmental values. Most studies of this issue conclude that a robust portfolio of generation technologies and fuels should be developed to assure that the United States will have adequate electricity supplies in a variety of possible future scenarios. The use of coal for electricity generation poses a unique set of challenges. On the one hand, coal is plentiful and available at low cost in much of the world, notably in the U.S., China, and India. Countries with large coal reserves will want to develop them to foster economic growth and energy security. On the other hand, traditional methods of coal combustion emit pollutants and CO{sub 2} at high levels relative to other generation options. Maintaining coal as a generation option in the 21st century will require methods for addressing these environmental issues. This project has established a government/industry consortium to undertake a five-year effort to evaluate and develop of advanced materials that allow the use of advanced steam cycles in coal-based power plants. These advanced cycles, with steam temperatures up to 760 C, will increase the efficiency of coal-fired boilers from an average of 35% efficiency (current domestic fleet) to 47% (HHV). This efficiency increase will enable coal-fired power plants to generate electricity at competitive rates (irrespective of fuel costs) while reducing CO{sub 2} and other fuel-related emissions by as much as 29%. Success in achieving these objectives will support a number of broader goals. First, from a national prospective, the program will identify advanced materials that will make it possible to maintain a cost-competitive, environmentally acceptable coal-based electric generation option. High sulfur coals will specifically benefit in this respect by having these advanced materials evaluated in high-sulfur coal firing conditions and from the significant reductions in waste generation inherent in the increased operational efficiency. Second, from a national prospective, the results of this program will enable domestic boiler manufacturers to successfully compete in world markets for building high-efficiency coal-fired power plants.

R. Viswanathan; K. Coleman

2003-01-20T23:59:59.000Z

417

BOILER MATERIALS FOR ULTRASUPERCRITICAL COAL POWER PLANTS  

SciTech Connect (OSTI)

The principal objective of this project is to develop materials technology for use in ultrasupercritical (USC) plant boilers capable of operating with 760 C (1400 F), 35 MPa (5000 psi) steam. In the 21st century, the world faces the critical challenge of providing abundant, cheap electricity to meet the needs of a growing global population while at the same time preserving environmental values. Most studies of this issue conclude that a robust portfolio of generation technologies and fuels should be developed to assure that the United States will have adequate electricity supplies in a variety of possible future scenarios. The use of coal for electricity generation poses a unique set of challenges. On the one hand, coal is plentiful and available at low cost in much of the world, notably in the U.S., China, and India. Countries with large coal reserves will want to develop them to foster economic growth and energy security. On the other hand, traditional methods of coal combustion emit pollutants and CO{sub 2} at high levels relative to other generation options. Maintaining coal as a generation option in the 21st century will require methods for addressing these environmental issues. This project has established a government/industry consortium to undertake a five-year effort to evaluate and develop of advanced materials that allow the use of advanced steam cycles in coal-based power plants. These advanced cycles, with steam temperatures up to 760 C, will increase the efficiency of coal-fired boilers from an average of 35% efficiency (current domestic fleet) to 47% (HHV). This efficiency increase will enable coal-fired power plants to generate electricity at competitive rates (irrespective of fuel costs) while reducing CO{sub 2} and other fuel-related emissions by as much as 29%. Success in achieving these objectives will support a number of broader goals. First, from a national prospective, the program will identify advanced materials that will make it possible to maintain a cost-competitive, environmentally acceptable coal-based electric generation option. High sulfur coals will specifically benefit in this respect by having these advanced materials evaluated in high-sulfur coal firing conditions and from the significant reductions in waste generation inherent in the increased operational efficiency. Second, from a national prospective, the results of this program will enable domestic boiler manufacturers to successfully compete in world markets for building high-efficiency coal-fired power plants.

R. Viswanathan; K. Coleman

2002-10-15T23:59:59.000Z

418

BOILER MATERIALS FOR ULTRASUPERCRITICAL COAL POWER PLANTS  

SciTech Connect (OSTI)

The principal objective of this project is to develop materials technology for use in ultrasupercritical (USC) plant boilers capable of operating with 760 C (1400 F), and up to 5500 psi with emphasis upon 35 MPa (5000 psi) steam. In the 21st century, the world faces the critical challenge of providing abundant, cheap electricity to meet the needs of a growing global population while at the same time preserving environmental values. Most studies of this issue conclude that a robust portfolio of generation technologies and fuels should be developed to assure that the United States will have adequate electricity supplies in a variety of possible future scenarios. The use of coal for electricity generation poses a unique set of challenges. On the one hand, coal is plentiful and available at low cost in much of the world, notably in the U.S., China, and India. Countries with large coal reserves will want to develop them to foster economic growth and energy security. On the other hand, traditional methods of coal combustion emit pollutants and CO{sub 2} at high levels relative to other generation options. Maintaining coal as a generation option in the 21st century will require methods for addressing these environmental issues. This project has established a government/industry consortium to undertake a five-year effort to evaluate and develop advanced materials that allow the use of advanced steam cycles in coal-based power plants. These advanced cycles, with steam temperatures up to 760 C, will increase the efficiency of coal-fired boilers from an average of 35% efficiency (current domestic fleet) to 47% (HHV). This efficiency increase will enable coal-fired power plants to generate electricity at competitive rates (irrespective of fuel costs) while reducing CO{sub 2} and other fuel-related emissions by as much as 29%. Success in achieving these objectives will support a number of broader goals. First, from a national prospective, the program will identify advanced materials that will make it possible to maintain a cost-competitive, environmentally-acceptable coal-based electric generation option. High sulfur coals will specifically benefit in this respect by having these advanced materials evaluated in high-sulfur coal firing conditions and from the significant reductions in waste generation inherent in the increased operational efficiency. Second, from a national perspective, the results of this program will enable domestic boiler manufacturers to successfully compete in world markets for building high-efficiency coal-fired power plants.

R. Viswanathan

2002-04-15T23:59:59.000Z

419

BOILER MATERIALS FOR ULTRASUPERCRITICAL COAL POWER PLANTS  

SciTech Connect (OSTI)

The principal objective of this project is to develop materials technology for use in ultrasupercritical (USC) plant boilers capable of operating with 760 C (1400 F), 35 MPa (5000 psi) steam. In the 21st century, the world faces the critical challenge of providing abundant, cheap electricity to meet the needs of a growing global population while at the same time preserving environmental values. Most studies of this issue conclude that a robust portfolio of generation technologies and fuels should be developed to assure that the United States will have adequate electricity supplies in a variety of possible future scenarios. The use of coal for electricity generation poses a unique set of challenges. On the one hand, coal is plentiful and available at low cost in much of the world, notably in the U.S., China, and India. Countries with large coal reserves will want to develop them to foster economic growth and energy security. On the other hand, traditional methods of coal combustion emit pollutants and CO{sub 2} at high levels relative to other generation options. Maintaining coal as a generation option in the 21st century will require methods for addressing these environmental issues. This project has established a government/industry consortium to undertake a five-year effort to evaluate and develop of advanced materials that allow the use of advanced steam cycles in coal-based power plants. These advanced cycles, with steam temperatures up to 760 C, will increase the efficiency of coal-fired boilers from an average of 35% efficiency (current domestic fleet) to 47% (HHV). This efficiency increase will enable coal-fired power plants to generate electricity at competitive rates (irrespective of fuel costs) while reducing CO{sub 2} and other fuel-related emissions by as much as 29%. Success in achieving these objectives will support a number of broader goals. First, from a national prospective, the program will identify advanced materials that will make it possible to maintain a cost-competitive, environmentally acceptable coal-based electric generation option. High sulfur coals will specifically benefit in this respect by having these advanced materials evaluated in high-sulfur coal firing conditions and from the significant reductions in waste generation inherent in the increased operational efficiency. Second, from a national prospective, the results of this program will enable domestic boiler manufacturers to successfully compete in world markets for building high-efficiency coal-fired power plants.

R. Viswanathan; K. Coleman

2002-07-15T23:59:59.000Z

420

Stanek Windows | Open Energy Information  

Open Energy Info (EERE)

Stanek Windows Stanek Windows Jump to: navigation, search Name Stanek Windows Address 4565 Willow Parkway Place Cuyahoga Heights, Ohio Zip 44125 Sector Buildings, Efficiency Product Consulting; Installation; Maintenance and repair;Manufacturing; Retail product sales and distribution;Trainining and education Phone number 216-341-7700 Website http://www.stanekwindows.com Coordinates 41.435755°, -81.650183° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.435755,"lon":-81.650183,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Strategic evaluation of investments in coal-dust fuel for blast furnaces  

SciTech Connect (OSTI)

The paper discusses the evaluation of venture investment projects in pulverized coal injection into blast furnaces.

S.V. Bogdanov; S.M. Kornilaev [State University of Management, Moscow (Russian Federation)

2009-07-01T23:59:59.000Z

422

An Application of the Electric Resistance Furnace to the Determination of Oxygen in Iron and Steel.  

Science Journals Connector (OSTI)

An Application of the Electric Resistance Furnace to the Determination of Oxygen in Iron and Steel. ...

R. H. McMillen

1913-01-01T23:59:59.000Z

423

Introduction to the Boiler MACT Energy Assessment Process  

E-Print Network [OSTI]

Introduction to the Boiler MACT Energy Assessment Process I.E.T.C. May 21, 2014 Tom Theising, C.E.M., C.D.S.M. ESL-IE-14-05-12 Proceedings of the Thrity-Sixth Industrial Energy Technology Conference New Orleans, LA. May 20-23, 2014 Assessment... Requirements ?Per Subparts DDDDD and JJJJJJ - National Emission Standards for Hazardous Air Pollutants (NESHAP) for Industrial, Commercial, and Institutional Boilers at Area Sources (also known as the Boiler GACT – Generally Available Control Technology...

Theising, T. R.

2014-01-01T23:59:59.000Z

424

Evaluation and selection of circulating fluidized bed boilers  

SciTech Connect (OSTI)

The use of circulating fluidized bed (CFB) boilers to generate steam on an industrial scale is increasing. The reasons for this growth include high combustion efficiency, fuel flexibility, and inherent emissions control capability, particularly with regards to control of nitrogen oxides (NO{sub x}) and sulfur oxides (SO{sub x}). However, CFB boiler technology is unique, with operating performance, and construction features that differ significantly from those used in conventional pulverized coal (PC) and stoker-fired boiler technology. An overview of these features is presented by the author.

Marcinek, F.T. (Charles B. Tibbits and Associates, Seattle, WA (US))

1989-05-01T23:59:59.000Z

425

Advanced Materials for Ultra Supercritical Boiler Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Road Road P.O. Box 880 Morgantown, WV 26507-0880 304-285-4721 robert.romanosky@netl.doe.gov Patricia a. Rawls Project Manager National Energy Technology Laboratory 626 Cochrans Mill Road P.O. Box 10940 Pittsburgh, PA 15236-0940 412-386-5882 patricia.rawls@netl.doe.gov Robert M. Purgert Prime Contractor and Administrator Energy Industries of Ohio 6100 Oak Tree Boulevard, Suite 200 Independence, OH 44131-6914 216-643-2952 purgert@msn.com AdvAnced MAteriAls for UltrA sUpercriticAl Boiler systeMs Description A consortium led by the U.S. Department of Energy (DOE) Office of Fossil Energy (FE) has conducted the first phase of a multiyear program to develop materials technology for use in advanced ultra supercritical (USC) coal-fired power plants. The advanced materials developed in this project are essential for construction of

426

Covered Product Category: Residential Gas Furnaces | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Gas Furnaces Gas Furnaces Covered Product Category: Residential Gas Furnaces October 7, 2013 - 10:39am Addthis ENERGY STAR Qualified Products FEMP provides acquisition guidance across a variety of product categories, including residential gas furnaces, which are an ENERGY STAR®-qualified product category. Federal laws and executive orders mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law. Most manufacturers display the ENERGY STAR label on complying models. For a model not displaying this label, check the manufacturer's literature to determine if it meets the efficiency requirements outlined by ENERGY STAR. Performance Requirements for Federal Purchases For the most up-to-date efficiency levels required by ENERGY STAR, look for

427

Legendary West Virginia Senior Citizen Stays Warm With New Furnace |  

Broader source: Energy.gov (indexed) [DOE]

Legendary West Virginia Senior Citizen Stays Warm With New Furnace Legendary West Virginia Senior Citizen Stays Warm With New Furnace Legendary West Virginia Senior Citizen Stays Warm With New Furnace April 1, 2010 - 7:16pm Addthis Joshua DeLung For the last 56 years, Beulah Sisk has lived in the same house in Princeton, W.Va. Beulah, who worked for 25 years at Lloyd's Pastry Shop, is well known in Princeton. People still see her on the streets today and recognize her as an icon in the community. After a wind storm damaged Beulah's home last year, it came as no surprise when a senior center employee, concerned for Beulah's safety, told her about the weatherization assistance program. "A tree fell on my house and damaged a lot of things, including my furnace," Beulah says. "I tried to have it repaired, but it still

428

American Gas Association (AGA) for DOE Furnace Product Class  

Broader source: Energy.gov [DOE]

Thank you for the opportunity to brief your staff in recent weeks on an impact analysis of a national condensing furnace standard, which was conducted jointly by the American Gas Association (AGA),...

429

Mathematical Modeling of Pottery Production in Different Industrial Furnaces  

Science Journals Connector (OSTI)

The traditional process for pottery production was analyzed in this work by developing a fundamental mathematical model that simulates the operation of rustic pottery furnaces as employed by natives of village...

Marco Aurelio Ramírez Argáez…

2008-10-01T23:59:59.000Z

430

Voltage flicker prediction for two simultaneously operated ac arc furnaces  

SciTech Connect (OSTI)

An EMTP-based arc furnace model was developed for evaluation of flicker concerns associated with supplying a large integrated steel mill as they go from one to two furnace operation and as system changes are implemented that will affect the short circuit capacity at the 230 kV power supply substation. The model includes a dynamic arc representation which is designed to be characteristic of the initial portions of the melt cycle when the arc characteristics are the most variable (worst flicker conditions). The flicker calculations are verified using previous measurements with one furnace operation. Flicker simulations were then performed to evaluate a variety of different possible system strengths with both one and two furnaces in operation. The primary flicker measure used for this study is the unweighted rms value of the fluctuation envelope, expressed as a percentage of the rms line-to-ground voltage magnitude.

Tang, L. [ABB Power T and D Co., Inc., Raleigh, NC (United States)] [ABB Power T and D Co., Inc., Raleigh, NC (United States); Kolluri, S. [Entergy Services, New Orleans, LA (United States)] [Entergy Services, New Orleans, LA (United States); McGranaghan, M.F. [Electrotek Concepts, Inc., Knoxville, TN (United States)] [Electrotek Concepts, Inc., Knoxville, TN (United States)

1997-04-01T23:59:59.000Z

431

Hydronic Heating Coil Versus Propane Furnace, Rehoboth Beach...  

Energy Savers [EERE]

source heat pump (ASHP) with supplemental propane furnace heating. The Building America test house uses the same ASHP unit, but supplemental heat is provided by a combined DHW and...

432

Valorization of Automotive Shredder Residues in metallurgical furnaces Project REFORBA  

E-Print Network [OSTI]

) and the electric arc furnace (EAF) routes, P1 could be used as substitute for coal or coke, and P2 could replace with raw materials cheaper than coke. As additional potential benefits the amount of CO2 generated

Paris-Sud XI, Université de

433

Paired Straight Hearth Furnace-Transformational Ironmaking Process  

Broader source: Energy.gov (indexed) [DOE]

based on the Paired Straight Hearth Furnace (PSH) for iron ore reduction y PSH is a coal and natural gas coke-free process most suitable for American fine concentrates y PSH...

434

Image-Based Filtering and Control of Tubular Furnaces  

Science Journals Connector (OSTI)

In this paper, an image based advanced control strategies for controling combustion processes and temperature regimes of two flows tubular furnaces in petroluem refinery has been developed as a new approach and design principles have been targeted. In ...

A. G. Abilov; O. Tuzunalp; Z. Telatar

2003-06-01T23:59:59.000Z

435

New Energy Efficiency Standards for Furnace Fans to Reduce Carbon...  

Office of Environmental Management (EM)

by at least 3 billion metric tons in total by 2030, equal to more than a year's carbon pollution from the entire U.S. electricity system. Furnace fans are used to circulate air...

436

Energy expenditures and carbon-dioxide emissions at blast furnaces  

Science Journals Connector (OSTI)

Thermodynamic analysis of the reduction of iron and the material balances of carbon shows that the CO2 levels in the blast-furnace gas may be maintained by lowering the carbon consumption in the direct reduction ...

G. V. Korshikov; V. N. Titov; V. G. Mikhailov

2013-07-01T23:59:59.000Z

437

Use of refractory coatings on linings of electric resistance furnaces  

Science Journals Connector (OSTI)

Results of experimental and theoretical studies of the reduction of power consumption in furnaces with a lining covered by IVAKS-2 and IVA-2 intensifying refractory coatings are presented. The heating curves o...

A. V. Aksenov; V. A. Belyakov

1997-09-01T23:59:59.000Z

438

Rigid thin windows for vacuum applications  

DOE Patents [OSTI]

A thin window that stands off atmospheric pressure is fabricated using photolithographic and wet chemical etching techniques and comprises at least two layers: an etch stop layer and a protective barrier layer. The window structure also comprises a series of support ribs running the width of the window. The windows are typically made of boron-doped silicon and silicon nitride and are useful in instruments such as electron beam guns and x-ray detectors. In an electron beam gun, the window does not impede the electrons and has demonstrated outstanding gun performance and survivability during the gun tube manufacturing process.

Meyer, Glenn Allyn (Danville, CA); Ciarlo, Dino R. (Livermore, CA); Myers, Booth Richard (Livermore, CA); Chen, Hao-Lin (Lafayette, CA); Wakalopulos, George (Pacific Palisades, CA)

1999-01-01T23:59:59.000Z

439

Low NOx Burner Design and Analysis for Conceptual Design of Oxygen-Based PC Boiler  

SciTech Connect (OSTI)

The objective of the low NOx burner design and analysis task of the Conceptual Design of Oxygen-Based PC Boiler study is to optimize the burner design to ensure stable ignition, to provide safe operation, and to minimize pollutant formation. The burners were designed and analyzed using the Fluent computer program. Four burner designs were developed: (1) with no over-fire gas (OFG) and 65% flue gas recycle, (2) with 20% OFG and 65% flue gas recycle, (3) with no OFG and 56% flue gas recycle and (4) with 20% OFG and 56% flue gas recycle. A 3-D Fluent simulation was made of a single wall-fired burner and horizontal portion of the furnace from the wall to the center. Without primary gas swirl, coal burnout was relatively small, due to the low oxygen content of the primary gas stream. Consequently, the burners were modified to include primary gas swirl to bring the coal particles in contact with the secondary gas. An optimal primary gas swirl was chosen to achieve sufficient burnout.

Andrew Seltzer

2005-05-01T23:59:59.000Z

440

Waterwall corrosion in pulverized coal burning boilers: root causes and wastage predictions  

SciTech Connect (OSTI)

Waterwall corrosion has become a serious problem in the USA since the introduction of combustion systems, designed to lower NOx emissions. Previous papers have shown that the main cause of the increased corrosion is the deposition of corrodants, iron sulfides and alkali chlorides, which occurs under reducing conditions. In this paper, the contribution of various variables such as the amount of corrodant in the deposit, the flue gas composition and the metal temperature, is further quantified in laboratory tests, using a test furnace allowing thermal gradients across the deposit and the metal tube samples. Approximate deposit compositions were calculated from the coal composition, its associated ash constituents and corrosive impurities. A commercially available thermochemical equilibrium package was used, after modifications to reflect empirical alkali availability data. Predictions from these calculations agreed reasonably well with the alkali chloride and FeS content found in actual boiler deposits. Thus approximate corrosion rates can be predicted from the chemical composition of the coal using corrosion rates from laboratory tests, adjusted to account for the short duration (100 hours) of the laboratory tests. Reasonable agreement was again obtained between actual and predicted results.

Bakker, W.; Stanko, G.; Blough, J.; Seitz, W.; Niksa, S. [Electric Power Research Institute, Palo Alto, CA (United States)

2007-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

High Performance Windows Volume Purchase: Contacts  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Contacts to Contacts to someone by E-mail Share High Performance Windows Volume Purchase: Contacts on Facebook Tweet about High Performance Windows Volume Purchase: Contacts on Twitter Bookmark High Performance Windows Volume Purchase: Contacts on Google Bookmark High Performance Windows Volume Purchase: Contacts on Delicious Rank High Performance Windows Volume Purchase: Contacts on Digg Find More places to share High Performance Windows Volume Purchase: Contacts on AddThis.com... Home About For Builders For Residential Buyers For Light Commercial Buyers For Manufacturers For Utilities Information Resources Contacts Web site and High Performance Windows Volume Purchase Program contacts are provided below. Website Contact Send us your comments, report problems, and/or ask questions about

442

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Ensure Proper Installation of New Windows Ensure Proper Installation of New Windows Information Regarding Lead-based Hazards Comprehensive information about lead paint exit disclaimer by U.S. EPA Literature ASTM E 2112, "Standard Practice for Installation of Exterior Windows, Doors and Skylights." www.astm.org exit disclaimer Water Management Guide, Joseph W. Lstiburek, Energy & Environmental Building Association. www.eeba.org exit disclaimer Proper installation is necessary for optimal window performance, to ensure an airtight fit and avoid water leakage. Always follow manufacturers installation guidelines and use trained professionals for window installation. The Importance of Quality Window Installation Quite simply, windows are only as good as their installation. Proper installation will:

443

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Selection Process for New Windows Selection Process for New Windows What are the benefits of energy-efficient windows? Energy & Cost Savings Improved Comfort Less Condensation Increased Light & View Reduced Fading Lower HVAC Costs How is window performance measured? U-factor Solar Heat Gain Coefficient Visible Transmittance Air Leakage Condensation Resistance Are there financing and incentive programs? Overview of Utility and State Programs Building Codes Energy Rating Programs 1. Meet the Energy Code and Look for the ENERGY STAR® Windows must meet the locally applicable energy code requirements. Windows that are ENERGY STAR qualified typically meet or exceed energy code requirements. A home's climate and location determine the relative importance of heating and cooling energy use, the applicable building energy code requirements, and the qualification criteria for ENERGY STAR windows. ENERGY STAR

444

Making Smart Windows Smarter | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Smart Windows Smarter Smart Windows Smarter Making Smart Windows Smarter April 5, 2011 - 2:00pm Addthis "Smart Windows" seen at light and dark settings. | Photo Courtesy of SAGE Electrochromics, Inc., by Susan Fleck Photography "Smart Windows" seen at light and dark settings. | Photo Courtesy of SAGE Electrochromics, Inc., by Susan Fleck Photography Roland Risser Roland Risser Program Director, Building Technologies Office What does this project do? Pleotint, LLC has developed a specialized glass film that uses the energy generated by the sun to limit excess heat and light from coming into homes and buildings. When you look out the window, you might notice whether the sun is shining, a nice view of the outdoors or an interesting cloud passing by. What most people probably don't notice is that traditional windows waste about 30

445

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Performance Standards Performance Standards Even the expert eye cannot easily tell an efficient window from a conventional window. That is why energy ratings, endorsement programs and consumer incentives play an important role in creating awareness for window energy efficiency among consumers, builders, architects and performance standard programs. Learn about NFRC certification and labeling Learn about ENERGY STAR® for windows, doors and skylights High Performance Windows and Low-E Storm Windows Volume Purchase Program Utility and State Incentives for energy efficiency improvements Building Codes Most locations have building energy codes that mandate minimum performance levels for windows, doors, and skylights. The builder, contractor or homeowner must adhere to the code requirements, which typically cover

446

Laboratory Evaluation of Residential Furnace BlowerPerformance  

SciTech Connect (OSTI)

A testing program was undertaken at Lawrence Berkeley National Laboratory and an electric utility (Pacific Gas and Electric Co.) to compare the performance of furnace blowers. This laboratory testing program was undertaken to support potential changes to California Building Standards regarding in-field furnace blower energy use. This technical support includes identifying suitable performance metrics and target performance levels for use in standards. Five different combinations of blowers and residential furnaces were tested for air moving performance. Three different types of blower and motor combinations were tested in two different furnace cabinets. The blowers were standard forward--curved impellors and a prototype impeller with reverse-inclined blades. The motors were two 6-pole permanent split capacitor (PSC) single-phase induction motors, a brushless permanent magnet (BPM) motor and a prototype BPM designed for use with a prototype reverse-inclined impellor. The laboratory testing operated each blower and furnace combination over a range of air flows and pressure differences to determine air flow performance, power consumption and efficiency. Additional tests varied the clearance between the blower housing and the furnace cabinet, and the routing of air flow into the blower cabinet.

Walker, Iain S.; Lutz, Jim D.

2005-09-01T23:59:59.000Z

447

Biomass Boiler to Heat Oregon School | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Biomass Boiler to Heat Oregon School Biomass Boiler to Heat Oregon School Biomass Boiler to Heat Oregon School April 26, 2011 - 5:29pm Addthis Oregon Governor Kulongoski maneuvers a backhoe to break ground at the Vernonia school site. | Department of Energy Image | Photo by Joel Danforth, Contractor | Public Domain | Oregon Governor Kulongoski maneuvers a backhoe to break ground at the Vernonia school site. | Department of Energy Image | Photo by Joel Danforth, Contractor | Public Domain | Joel Danforth Project Officer, Golden Field Office What will the project do? The boiler system will have a capacity of up to 3 Million Metric British Thermal Units (MMBTU) per hour and will be fueled by locally derived wood-pellet feedstocks. A new school in Vernonia, Oregon is beginning to take form as the town

448

Commonwealth Small Pellet Boiler Grant Program | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Commonwealth Small Pellet Boiler Grant Program Commonwealth Small Pellet Boiler Grant Program Commonwealth Small Pellet Boiler Grant Program < Back Eligibility Commercial Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heating Bioenergy Maximum Rebate $15,000 Program Info Funding Source Massachusetts Renewable Energy Trust Fund Start Date 03/2013 State Massachusetts Program Type State Rebate Program Rebate Amount Base Grant: $7,000 Automated Conveyance of Fuel Adder: $3,000 Thermal Storage Adder: $2,000 Solar Thermal Hybrid System Adder: $1,000 Moderate Income Adder or Moderate Home Value Adder: $2,000 Maximum Grant: $15,000 Provider Massachusetts Clean Energy Center The Massachusetts Clean Energy Center (MassCEC) and the Department of Energy Resources (DOER) are offering the Commonwealth Small Pellet Boiler

449

Biomass Boiler to Heat Oregon School | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Biomass Boiler to Heat Oregon School Biomass Boiler to Heat Oregon School Biomass Boiler to Heat Oregon School April 26, 2011 - 5:29pm Addthis Oregon Governor Kulongoski maneuvers a backhoe to break ground at the Vernonia school site. | Department of Energy Image | Photo by Joel Danforth, Contractor | Public Domain | Oregon Governor Kulongoski maneuvers a backhoe to break ground at the Vernonia school site. | Department of Energy Image | Photo by Joel Danforth, Contractor | Public Domain | Joel Danforth Project Officer, Golden Field Office What will the project do? The boiler system will have a capacity of up to 3 Million Metric British Thermal Units (MMBTU) per hour and will be fueled by locally derived wood-pellet feedstocks. A new school in Vernonia, Oregon is beginning to take form as the town

450

Cost-Effective Industrial Boiler Plant Efficiency Advancements  

E-Print Network [OSTI]

Natural gas and electricity are expensive to the extent that annual fuel and power costs can approach the initial cost of an industrial boiler plant. Within this context, this paper examines several cost-effective efficiency advancements that were...

Fiorino, D. P.

451

Improving Boiler Efficiency Modeling Based On Ambient Air Temperature  

E-Print Network [OSTI]

Optimum economic operation in a large power plant can cut operating costs substantially. Individual plant equipment should be operated under conditions that are most favorable for maximizing its efficiency. It is widely accepted that boiler load...

Zhou, J.; Deng, S.; Turner, W. D.; Claridge, D. E.; Haberl, J. S.

2002-01-01T23:59:59.000Z

452

Heat Recovery Consideration for Process Heaters and Boilers  

E-Print Network [OSTI]

The largest single area for industrial energy conservation is in the improvement of combustion efficiencies for heaters and boilers. A number of methods can be employed to recover heat. The most common are by use of recuperative air preheaters...

Kumar, A.

1984-01-01T23:59:59.000Z

453

A Boiler Plant Energy Efficiency and Load Balancing Survey  

E-Print Network [OSTI]

Daily energy use data was used to perform an energy efficiency survey of a medium-sized university boiler plant. The physical plant operates centralized mechanical plants to provide both chilled water and steam for building conditioning. Steam...

Nutter, D. W.; Murphy, D. R.

454

Design and Operation of CFB Boilers with Low Bed Inventory  

Science Journals Connector (OSTI)

In this paper, the challenges and problems of the circulating fluidized bed (CFB) combustion technology are summarized and analyzed. In order to resolve the problems in CFB boiler application, design principals a...

Jun Su; Xiaoxing Zhao; Jianchun Zhang…

2010-01-01T23:59:59.000Z

455

Ash Behavior in a CFB Boiler during Combustion of Salix  

Science Journals Connector (OSTI)

A study on the combustion characteristics of Salix Viminalis, a fast growing willow, was conducted at a 12 MW circulating fluidized bed boiler. The purpose of the study was to increase the understanding of the...

B.-J. Skrifvars; G. Sfiris; R. Backman…

1997-01-01T23:59:59.000Z

456

Research and Development of Large Capacity CFB Boilers in TPRI  

Science Journals Connector (OSTI)

This paper presents an overview of advancements of circulating fluidized bed (CFB) technology in Thermal Power Research Institute ( ... progress of scaling up. For devoloping large CFB boiler, the CFB combustion ...

Sun Xianbin; Jiang Minhua

2010-01-01T23:59:59.000Z

457

Abrasion-Resistant Technology and its Prospect for CFB Boilers  

Science Journals Connector (OSTI)

In recent years, CFB boilers (CFBB) have been widely used in the commercial power plants due to its environmental benefits, high combustion efficiency, wide coal flexibility, and some other advantages. At the ...

H. Zheng; Y. J. Li; L. J. Wang; S. H. Liu…

2010-01-01T23:59:59.000Z

458

Boiler Upgrades and Decentralizing Steam Systems Save Water and...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

replacing its central plant with a combination of distributed boilers and ground source heat pumps. The results saved more than 1 million MBtu in energy and 19,574 Kgal of water...

459

Selective diagnostics of combustion processes in multi-burner boilers  

Science Journals Connector (OSTI)

The process of gas hydrocarbon combustion was tested in real (industrial) conditions on boilers with many burners. For key operation modes, the main regularities of emission from single flames were studied. Th...

S. M. Borzov; V. V. Garkusha; V. I. Kozik; V. P. Mikheev…

460

Fourier transform infrared (FTIR) instrumentation for monitoring recovery boilers  

SciTech Connect (OSTI)

This paper discusses FTIR which acts as an on-line diagnostic tool for Weyerhaeuser's recovery boiler. So far, the concentrations of various gases and fume particles have been successfully analyzed.

Morrison, P.W. Jr.; Cosgrove, J.E.; Carangelo, R.; Solomon, P.R. (Advanced Fuel Research, Inc., East Hartford, CT (US)); Leroveil, P.; Thorn, P.A. (Weyerhaeuser Paper Co., Tocoma, WA (US))

1991-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "windows furnaces boilers" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Dissimilar-metal weld failures in boiler tubing  

SciTech Connect (OSTI)

Both ferritic heat-resisting steels and austenitic stainless steels are used for fossil-fired boilers for central power stations. The use of these two different types of materials within the system leads to the need for a dissimilar-metal weld transition joint. Increased cyclic operation of boilers has led to a rash of failures in welds between dissimilar metals; studies have identified the causes, and improved nondestructive testing techniques permit early identification of problem areas.

Klueh, R.L.

1984-02-01T23:59:59.000Z

462

Guide to Low-Emission Boiler and Combustion Equipment Selection  

Broader source: Energy.gov [DOE]

The guide presents topics pertaining to industrial, commercial, and institutional (ICI) boilers. Background information about various types of commercially available boilers is provided along with discussion about the fuels that they burn and the emissions that they produce. Also included are discussions about emissions standards and compliance issues, technical details related to emissions control techniques, and other important selection considerations. It is part of a suite of publications offered by the Department of Energy to improve steam system performance.

463

ABSTRACT Establishing an Energy Efficiency Recommendation for Commercial Boilers  

E-Print Network [OSTI]

To assist the federal government in meeting its energy reduction goals, President Clinton’s Executive Order 12902 established the Procurement Challenge, which directed all federal agencies to purchase equipment within the top 25 ~ percentile of efficiency. Under the direction of DOE’s Federal Energy Management Program (FEMP), the Procurement Challenge’s goal is to create efficiency recommendations for all energy-using products (e.g. commercial boilers, chillers, motors) that could substantially impact the government’s energy reduction goals. When establishing efficiency recommendations, FEMP looks at standardized performance ratings for products sold in the U.S. marketplace. Currently, the commercial boiler industry uses combustion efficiency and, sometimes, thermal efficiency as metrics when specifying boiler performance. For many years, the industry has used both metrics interchangeably, causing confusion in the market place about boiler performance. This paper discusses the method used to establish FEMP’s efficiency recommendation for commercial boilers in lieu of the various, and somewhat confusing, efficiency ratings currently available. The paper also discusses potential energy cost savings for federal agencies that improve the efficiency of boilers specified and purchased.

Michelle J. Ware

464

Guided wave acoustic monitoring of corrosion in recovery boiler tubing  

SciTech Connect (OSTI)

Corrosion of tubing used in black-liquor recovery boilers is a major concern in all pulp and paper mills. Extensive corrosion in recovery boiler tubes can result in a significant safety and environmental hazard. Considerable plant resources are expended to inspect recovery boiler tubing. Currently, visual and ultrasonic inspections are primarily used during the annual maintenance shutdown to monitor corrosion rates and cracking of tubing. This Department of Energy, Office of Industrial Technologies project is developing guided acoustic waves for use on recovery boiler tubing. The feature of this acoustic technique is its cost-effectiveness in inspecting long lengths of tubes from a single inspection point. A piezoelectric or electromagnetic transducer induces guided waves into the tubes. The transducer detects fireside defects from the coldside or fireside of the tube. Cracking and thinning on recovery boiler tubes have been detected with this technique in both laboratory and field applications. This technique appears very promising for recovery boiler tube application, potentially expediting annual inspection of tube integrity.

Quarry, M J; Chinn, D J

2004-02-19T23:59:59.000Z

465

Fireside carburization of stainless steel furnace tubes  

SciTech Connect (OSTI)

Most heavy Venezuelan crudes are recognized for having a high total acid number (TAN) that is usually associated with a high tendency to produce naphthenic acid corrosion. To resist this type of corrosion in vacuum heaters, 9Cr-1Mo steel and stainless steels containing molybdenum are usually recommended. In 1993 the original 5Cr-1/2Mo roof tubes of the furnace in a vacuum unit were replaced by stainless steel 316Ti to minimize tube replacement and increase heater reliability. Unexpectedly, some of the new tubes failed after only three years of service, and just one year after undergoing the last turnaround inspection. The damage occurred in the form of deep holes and perforations, starting from the outside tube surface on the fireside. Coke build-up occurred due to severe operating conditions, overheating the tubes on the fireside, above 675 C (1250 F). Metallographic and Scanning Electron Microscopic (SEM) examination revealed internal and external carburization of the material due to the presence of coke and combustion ashes, respectively. The increase in the skin metal temperature facilitated the diffusion of carbon from these carbon-rich deposits into the low carbon content material (0.023 O/O).Depletion of chromium at the grain boundaries due to the massive formation of chromium carbides, resulted in a severe intergranular corrosion attack by molten salts rich in vanadium and sulfur due to asphalt burning. Normal operating practice demands the use of steam for the heater tubes to control coke build-up. This practice had been first reduced and then eliminated, during the past two years prior to the failure, because of economic incentives. This paper describes the root cause analysis conducted to account for these premature tube failures.

Mirabal, E.; Molina, C. [PDVSA-Refineria Isla, Curayao (Netherlands); Mayorga, A.; Hau, J.L. [PDVSA-Intevep, Caracas (Venezuela)

1999-11-01T23:59:59.000Z

466

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Design Guidance for Replacement Windows Design Guidance for Replacement Windows Opportunities for Design Improvements Energy-efficient windows offer benefits under diverse design conditions. Window performance can be improved by taking orientation, window area and shading into account. Fine-tuning your window selection to the houses conditions and optimizing these conditions where possible helps further cut heating and cooling demand. Besides long-term energy savings, these upfront opportunities may be available: Smaller HVAC equipment: Lower heating and cooling demand means optimum equipment is smaller and costs less. ENERGY STAR Homes recognition: High-performance design can allow homes to be recognized by the ENERGY STAR program. Many States and localities offer design help and/or incentives for ENERGY STAR homes.

467

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Considerations for Window Performance Considerations for Window Performance Advanced window technologies can have a major effect on comfort and on the annual energy performance of a house. However, there is a broader and possibly more significant impact of the recent revolution in window performance. Because the new glazing technologies provide highly effective insulating value and solar protection, there are important implications for how a house is designed. There is a long-established set of window design guidelines and assumptions intended to reduce heating and cooling energy use. These are based, in part, on the historical assumption that windows were the weak link in the building envelope. These assumptions frequently created limitations on design freedom or generated conflicts with other performance requirements,

468

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The High Performance Windows Volume Purchase (WVP) Program The High Performance Windows Volume Purchase (WVP) Program The U.S. Department of Energy's Building Technologies Program (BTP) is coordinating a volume purchase program intended to overcome cost and awareness barriers to the wider adoption of highly-insulating windows and low-E storm windows. These products include windows meeting a number of specifications including a U-factor of 0.22 or less as well as storm windows with low-emissivity glass. Buyer groups with a potential interest in purchasing these products in volume will learn about their availability and cost through the program's product listings. Over 50 manufacturers proposed products for the first round of these listings, for which submittals were due by February 19, 2010. DOE does not purchase any products through this project, nor does DOE

469

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Guidance on Window Durability Guidance on Window Durability There is no simple rating or absolute guarantee of the durability of a window. You may want to study the design and workmanship of the window and rely on recommendations from others who have used similar products. The advice of experienced architects and builders can be helpful. As with other products, warranties can be an indicator of the reliability of the window and its manufacturer. Durability may vary with location; for example, some materials are degraded by salt near the ocean. These aspects of window durability deserve special attention: frame and sashes; insulating glass seals; weatherstripping; and local requirements for structural integrity. Frame and Sashes Although design and workmanship may be the most important factors

470

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Financing & Incentives Financing & Incentives Financing or incentive programs may be available to you if: You intend to replace old windows with high-performance, energy efficient windows. You plan to build a new home with windows that keep energy costs low and provide for a comfortable interior. If you are looking for utility programs within your state that can help you finance such an investment in efficient windows, download an overview of utility and state programs. Incentives and Rebates for Energy-Efficient Windows Offered through Utility and State Programs Utility and State Incentives We have provided an overview of utility and state programs that can help you as a resident, building owner, or builder to finance improvements in window energy efficiency. Download an overview of utility and state

471

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Measuring Performance: ENERGY STAR® Windows Measuring Performance: ENERGY STAR® Windows Windows for residential buildings are eligible for ENERGY STAR Most Efficient recognition in 2013. View the criteria for windows for the ENERGY STAR Most Efficient Program. Energy Star Most Efficient Program The Department of Energy (DOE) and the Environmental Protection Agency (EPA) have developed an ENERGY STAR exit disclaimer designation for products meeting certain energy performance criteria. Windows that have the ENERGY STAR designation will be labeled showing the zones in which it is qualified. Since energy efficient performance of windows, doors, and skylights varies by climate, product recommendations are given for four U.S. climate zones. For making comparisons among ENERGY STAR products, use the NFRC label or

472

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Fresh Air Fresh Air Windows provide the primary means to control air flow in most homes. People open windows to provide fresh air, ventilate odors and smoke, dissipate heat and moisture, and create air movement on hot days. While exhaust fans and central air systems can mechanically ventilate a room, opening a room to the outdoors is perceived as more direct and natural. Guidelines for Providing Fresh Air Place operable windows in all rooms to give occupants opportunity for fresh air. Provide cross-ventilation by placing window openings on opposite walls in line with the prevailing winds. Use casement windows to direct and control ventilation. Use operable skylights or roof windows to enhance ventilation. Use landscape elements to direct breezes. In order to ensure that all residences have access to the healthful aspects

473

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Design Guidance for New Windows Design Guidance for New Windows Opportunities for Design Improvements Energy-efficient windows offer benefits under diverse design conditions. Window performance can be improved by taking orientation, window area and shading into account. Fine-tuning your window selection to the houses conditions and optimizing these conditions where possible helps further cut heating and cooling demand. Besides long-term energy savings, these upfront opportunities may be available: Smaller HVAC equipment: Lower heating and cooling demand means optimum equipment is smaller and costs less. ENERGY STAR Homes recognition: High-performance design can allow homes to be recognized by the ENERGY STAR program. Many States and localities offer design help and/or incentives for ENERGY STAR homes.

474

Building Energy Software Tools Directory: Window  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Window Window WINDOW screenshot. Calculates thermal performance of fenestration products; heat transfer analysis method consistent with the rating procedure developed by the National Fenestration Rating Council (NFRC). Screen Shots Keywords fenestration, thermal performance, solar optical characteristics, windows, glazing Validation/Testing N/A Expertise Required Some knowledge about windows. Users 2000+ in the U.S. and abroad. Audience Manufacturers, engineers, architects, researchers, sales personnel. Input Interactive program: user-provided data files for frames (from the THERM program) and glazing layers (from the Optics program) optional. Output Reports for the total window can be saved to disk or printed; files can be generated to be used as input to the DOE-2 and EnergyPlus programs;

475

Low emission U-fired boiler combustion system  

DOE Patents [OSTI]

At least one main combustion chamber contains at least one pulverized coal burner. Each pulverized coal burner is operatively arranged for minimizing NO.sub.X production and for maintaining a predetermined operating temperature to liquefy ash within the combustion chamber. The combustion chamber includes a slag drain for removing slag from the combustion chamber. A slag screen is positioned in a generally U-shaped furnace flow pattern. The slag screen is positioned between the combustion chamber and a radiant furnace. The radiant furnace includes a reburning zone for in-furnace No.sub.X reduction. The reburning zone extends between a reburning fuel injection source and at least one overfire air injection port for injecting air.

Ake, Terence (North Brookfield, MA); Beittel, Roderick (Worcester, MA); Lisauskas, Robert A. (Shrewsbury, MA); Reicker, Eric (Barre, MA)

2000-01-01T23:59:59.000Z

476

Characterization of Oxy-combustion Impacts in Existing Coal-fired Boilers  

SciTech Connect (OSTI)

This report summarizes Year 1 results of a research program designed to use multi-scale experimental studies and fundamental theoretical models to characterize and predict the impacts of retrofit of existing coal-fired utility boilers for oxy-combustion. Through the course of Year 1 activities, great progress was made toward understanding the issues associated with oxy-combustion retrofit of coal-fired boilers. All four Year 1 milestones and objectives have been, or will be, completed on schedule and within budget. Progress in the four milestone areas may be summarized as follows: • University of Utah has performed size segregated ash composition measurements in the Oxy-Fuel Combustor (OFC). These experiments indicate that oxy-combustion retrofit may impact ash aerosol mineral matter composition. Both flame temperature and flue gas composition have been observed to influence the concentration of calcium, magnesium and iron in the fine particulate. This could in turn impact boiler fouling and slagging. • Sandia National Labs has shown that char oxidation rate is dependent on particle size (for sizes between 60 and 100 microns) by performing fundamental simulations of reacting char particles. These predictions will be verified by making time-resolved optical measurements of char particle temperature, velocity and size in bench-scale experiments before the end of Year 1. • REI and Siemens have completed the design of an oxy-research burner that will be mounted on University of Utah’s pilot-scale furnace, the L1500. This burner will accommodate a wide range of O2, FGR and mixing strategies under conditions relevant for utility boiler operation. Through CFD modeling of the different burner designs, it was determined that the key factor influencing flame stabilization location is particle heat-up rate. The new oxy-research burner and associated equipment is scheduled for delivery before the end of Year 1. • REI has completed a literature survey of slagging and fouling mechanisms in coal-fired power plants to understand key issues influencing these deposition regimes and infer their behavior under oxy-fired conditions. Based on the results of this survey, an algorithm for integrating slagging predictions into CFD models was outlined. This method accounts for ash formation, particle impaction and sticking, deposit growth and physical properties and impact of the deposit on system flow and heat transfer. A model for fouling in the back pass has also been identified which includes vaporization of sodium, deposition of sodium sulfate on fly ash particles and tube surfaces, and deposit growth rate on tubes. In Year 1, REI has also performed a review of the literature describing corrosion in order to understand the behavior of oxidation, sulfidation, chloridation, and carburization mechanisms in air-fired and oxy-combustion systems. REI and Vattenfall have met and exchanged information concerning oxy-coal combustion mechanisms for CFD simulations currently used by Vattenfall. In preparation for Year 2 of this program, two coals (North Antelope PRB, Western bituminous) have been ordered, pulverized and delivered to the University of Utah and Sandia National Labs. Materials for the corrosion experiments have been identified, suppliers located, and a schedule for equipment fabrication and shakedown has been established. Finally, a flue gas recycle system has been designed and is being constructed for the OFC.

Bradley Adams; Andrew Fry; Constance Senior; Hong Shim; Huafeng Wang; Jost Wendt; Christopher Shaddix

2009-06-30T23:59:59.000Z

477

Furnace Blower Electricity: National and Regional Savings Potential  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Furnace Blower Electricity: National and Regional Savings Potential Furnace Blower Electricity: National and Regional Savings Potential Title Furnace Blower Electricity: National and Regional Savings Potential Publication Type Report LBNL Report Number LBNL-417E Year of Publication 2008 Authors Franco, Victor H., James D. Lutz, Alexander B. Lekov, and Lixing Gu Document Number LBNL-417E Pagination 14 Date Published August 1 Publisher Lawrence Berkeley National Laboratory City Berkeley Abstract Currently, total electricity consumption of furnaces is unregulated, tested at laboratory conditions using the DOE test procedure, and is reported in the GAMA directory as varying from 76 kWh/year to 1,953 kWh/year. Furnace blowers account for about 80% of the total furnace electricity consumption and are primarily used to distribute warm air throughout the home during furnace operation as well as distribute cold air during air conditioning operation. Yet the furnace test procedure does not provide a means to calculate the electricity consumption during cooling operation or standby, which account for a large fraction of the total electricity consumption. Furthermore, blower electricity consumption is strongly affected by static pressure. Field data shows that static pressure in the house distribution ducts varies widely and that the static pressureused in the test procedure as well as the calculated fan power is not representative of actual field installations. Therefore, accurate determination of the blower electricity consumption is important to address electricity consumption of furnaces and air conditioners. This paper compares the potential regional and national energy savings of two-stage brushless permanent magnet (BPM) blower motors (the blower design option with the most potential savings that is currently available in the market) to single-stage permanent split capacitor (PSC) blower motors (the most common blower design option). Computer models were used to generate the heating and cooling loads for typical homes in 16 different climates which represent houses throughout the United States. The results show that the potential savings of using BPM motors vary by region and house characteristics, and are very strongly tied to improving house distribution ducts. Savings decrease dramatically with increased duct pressure. Cold climate locations will see savings even in the high static pressure duct situations, whilewarm climate locations will see less savings overall and negative savings in the high static pressure duct situations. Moderate climate locations will see little or no savings.

478

Recovery of Water from Boiler Flue Gas  

SciTech Connect (OSTI)

This project dealt with use of condensing heat exchangers to recover water vapor from flue gas at coal-fired power plants. Pilot-scale heat transfer tests were performed to determine the relationship between flue gas moisture concentration, heat exchanger design and operating conditions, and water vapor condensation rate. The tests also determined the extent to which the condensation processes for water and acid vapors in flue gas can be made to occur separately in different heat transfer sections. The results showed flue gas water vapor condensed in the low temperature region of the heat exchanger system, with water capture efficiencies depending strongly on flue gas moisture content, cooling water inlet temperature, heat exchanger design and flue gas and cooling water flow rates. Sulfuric acid vapor condensed in both the high temperature and low temperature regions of the heat transfer apparatus, while hydrochloric and nitric acid vapors condensed with the water vapor in the low temperature region. Measurements made of flue gas mercury concentrations upstream and downstream of the heat exchangers showed a significant reduction in flue gas mercury concentration within the heat exchangers. A theoretical heat and mass transfer model was developed for predicting rates of heat transfer and water vapor condensation and comparisons were made with pilot scale measurements. Analyses were also carried out to estimate how much flue gas moisture it would be practical to recover from boiler flue gas and the magnitude of the heat rate improvements which could be made by recovering sensible and latent heat from flue gas.

Edward Levy; Harun Bilirgen; Kwangkook Jeong; Michael Kessen; Christopher Samuelson; Christopher Whitcombe

2008-09-30T23:59:59.000Z

479

A new compact fixed-point blackbody furnace  

SciTech Connect (OSTI)

More and more NMIs are realizing their primary scale themselves with fixed-point blackbodies as their reference standard. However, commercially available fixed-point blackbody furnaces of sufficient quality are not always easy to obtain. CHINO Corp. and NMIJ, AIST jointly developed a new compact fixed-point blackbody furnace. The new furnace has such features as 1) improved temperature uniformity when compared to previous products, enabling better plateau quality, 2) adoption of the hybrid fixed-point cell structure with internal insulation to improve robustness and thereby to extend lifetime, 3) easily ejectable and replaceable heater unit and fixed-point cell design, leading to reduced maintenance cost, 4) interchangeability among multiple fixed points from In to Cu points. The replaceable cell feature facilitates long term maintenance of the scale through management of a group of fixed-point cells of the same type. The compact furnace is easily transportable and therefore can also function as a traveling standard for disseminating the radiation temperature scale, and for maintaining the scale at the secondary level and industrial calibration laboratories. It is expected that the furnace will play a key role of the traveling standard in the anticipated APMP supplementary comparison of the radiation thermometry scale.

Hiraka, K.; Oikawa, H.; Shimizu, T.; Kadoya, S.; Kobayashi, T. [CHINO CORPORATION, Itabashi, Tokyo (Japan)] [CHINO CORPORATION, Itabashi, Tokyo (Japan); Yamada, Y.; Ishii, J. [National Metrology Institute of Japan, AIST, Tsukuba, Ibaraki (Japan)] [National Metrology Institute of Japan, AIST, Tsukuba, Ibaraki (Japan)

2013-09-11T23:59:59.000Z

480

Welcome to the Efficient Windows Collaborative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Measuring Performance Measuring Performance What are the benefits of energy-efficient windows? Energy & Cost Savings Improved Comfort Less Condensation Increased Light & View Reduced Fading Lower HVAC Costs Looking for information on windows for a new house? Window Selection Tool Selection Process Design Guidance Installation Looking for information on replacement windows? Window Selection Tool Assessing Options Selection Process Design Guidance Installation U-factor The rate of heat loss is indicated in terms of the U-factor (U-value) of a window assembly. This section on U-factor describes what a U-factor is and it's importance in the heat loss through a window assembly. U-factor Solar Heat Gain Coefficient (SHGC) The SHGC is the fraction of incident solar radiation admitted through a window, both directly transmitted and absorbed and subsequently released inward. This section on Solar Heat Gain Coefficient describes what a SHGC is and it's importance in the amount of heat gain through a window assembly.