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Note: This page contains sample records for the topic "furnace gas hvac" 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.


1

Measure Guideline: High Efficiency Natural Gas Furnaces  

SciTech Connect

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

2

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...

3

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...

4

Electric, Gas, and Electric/Gas Energy Options for Cold-Air HVAC Systems  

E-Print Network (OSTI)

An important aspect of the design of cost-effective HVAC systems today is (a) sensitivity to the cost impact of the interplay of utility demand charges, time-of-day rates, gas rates, and gas/electric utility incentive programs vis-à-vis HVAC system...

Meckler, G.

1989-01-01T23:59:59.000Z

5

Improving the Field Performance of Natural Gas Furnaces, Chicago, Illinois (Fact Sheet)  

SciTech Connect

The objective of this project is to examine the impact that common installation practices and age-induced equipment degradation may have on the installed performance of natural gas furnaces, as measured by steady-state efficiency and AFUE. PARR identified twelve furnaces of various ages and efficiencies that were operating in residential homes in the Des Moines Iowa metropolitan area and worked with a local HVAC contractor to retrieve them and test them for steady-state efficiency and AFUE in the lab. Prior to removal, system airflow, static pressure, equipment temperature rise, and flue loss measurements were recorded for each furnace. After removal from the field the furnaces were transported to the Gas Technology Institute (GTI) laboratory, where PARR conducted steady-state efficiency and AFUE testing. The test results show that steady-state efficiency in the field was 6.4% lower than that measured for the same furnaces under standard conditions in the lab, which included tuning the furnace input and air flow rate. Comparing AFUE measured under ASHRAE standard conditions with the label value shows no reduction in efficiency for the furnaces in this study over their 15 to 24 years of operation when tuned to standard conditions. Further analysis of the data showed no significant correlation between efficiency change and the age or the rated efficiency of the furnace.

Rothgeb, S.; Brand, L.

2013-11-01T23:59:59.000Z

6

Covered Product Category: Residential Gas Furnaces  

Energy.gov (U.S. Department of Energy (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.

7

Gas-Fired Boilers and Furnaces | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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.

8

Gas-Fired Boilers and Furnaces | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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.

9

ENERGY STAR Qualified Gas Furnaces | Data.gov  

NLE Websites -- All DOE Office Websites (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

10

HVAC | OpenEI  

Open Energy Info (EERE)

HVAC HVAC 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)

11

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...

12

Electricity and Natural Gas Efficiency Improvements for Residential Gas Furnaces in the U.S.  

E-Print Network (OSTI)

offsets the sizable electricity savings. References TitleElectricity and Natural Gas Efficiency Improvements forfueled by natural gas. Electricity consumption by a furnace

Lekov, Alex; Franco, Victor; Meyers, Steve; McMahon, James E.; McNeil, Michael; Lutz, Jim

2006-01-01T23:59:59.000Z

13

Covered Product Category: Residential Gas Furnaces | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

14

American Gas Association (AGA) for DOE Furnace Product Class  

Energy.gov (U.S. Department of Energy (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),...

15

Pedernales Electric Cooperative - HVAC Rebate Program | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Pedernales Electric Cooperative - HVAC Rebate Program Pedernales Electric Cooperative - HVAC Rebate Program Pedernales Electric Cooperative - HVAC Rebate Program < Back Eligibility Commercial Residential Commercial Residential Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Heat Pumps Program Info State Texas Program Type Utility Rebate Program Utility Rebate Program Rebate Amount Central AC with Gas Furnace: $300 - $400/unit Heat Pump: $400 - $500/unit Dual-Fuel Heat Pump: $400 - $500/unit Geothermal Heat Pump: $1,000/unit Water-Source Heat Pump: $1,000/unit Provider Pedernales Electric Cooperative Pedernales Electric Cooperative offers equipment rebates to members who install energy efficient HVAC equipment. Eligible equipment includes:

16

Electricity and Natural Gas Efficiency Improvements for Residential Gas Furnaces in the U.S.  

E-Print Network (OSTI)

by natural gas. Electricity consumption by a furnace blowerto the annual electricity consumption of a major appliance.not account for the electricity consumption of the appliance

Lekov, Alex; Franco, Victor; Meyers, Steve; McMahon, James E.; McNeil, Michael; Lutz, Jim

2006-01-01T23:59:59.000Z

17

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

18

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

19

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)

20

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

Note: This page contains sample records for the topic "furnace gas hvac" 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

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

22

Coke battery with 51-m{sup 3} furnace chambers and lateral supply of mixed gas  

SciTech Connect

The basic approaches employed in the construction of coke battery 11A at OAO Magnitogorskii Metallurgicheskii Kombinat are outlined. This battery includes 51.0-m{sup 3} furnaces and a dust-free coke-supply system designed by Giprokoks with lateral gas supply; it is heated exclusively by low-calorific mixed gas consisting of blast-furnace gas with added coke-oven gas. The 82 furnaces in the coke battery are divided into two blocks of 41. The gross coke output of the battery (6% moisture content) is 1140000 t/yr.

V.I. Rudyka; N.Y. Chebotarev; O.N. Surenskii; V.V. Derevich [Giprokoks, the State Institute for the Design of Coke-Industry Enterprises, Kharkov (Ukraine)

2009-07-15T23:59:59.000Z

23

Minimization of Blast furnace Fuel Rate by Optimizing Burden and Gas Distribution  

SciTech Connect

The goal of the research is to improve the competitive edge of steel mills by using the advanced CFD technology to optimize the gas and burden distributions inside a blast furnace for achieving the best gas utilization. A state-of-the-art 3-D CFD model has been developed for simulating the gas distribution inside a blast furnace at given burden conditions, burden distribution and blast parameters. The comprehensive 3-D CFD model has been validated by plant measurement data from an actual blast furnace. Validation of the sub-models is also achieved. The user friendly software package named Blast Furnace Shaft Simulator (BFSS) has been developed to simulate the blast furnace shaft process. The research has significant benefits to the steel industry with high productivity, low energy consumption, and improved environment.

Dr. Chenn Zhou

2012-08-15T23:59:59.000Z

24

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

25

Economics of Residential Gas Furnaces and Water Heaters in United States  

NLE Websites -- All DOE Office Websites (Extended Search)

Economics of Residential Gas Furnaces and Water Heaters in United States Economics of Residential Gas Furnaces and Water Heaters in United States New Construction Market Speaker(s): Alex Lekov Gabrielle Wong-Parodi James McMahon Victor Franco Date: May 8, 2009 - 12:00pm Location: 90-3122 In the new single-family home construction market, the choice of what gas furnace and gas water heater combination to install is primarily driven by first cost considerations. In this study, the authors use a life-cycle cost analysis approach that accounts for uncertainty and variability of inputs to assess the economic benefits of installing different gas furnace and water heater combinations. Among other factors, it assesses the economic feasibility of eliminating the traditional metal vents and replacing them with vents made of plastic materials used in condensing and power vent

26

BPM Motors in Residential Gas Furnaces: What are theSavings?  

SciTech Connect

Residential gas furnaces contain blowers to distribute warm air. Currently, furnace blowers use either a Permanent Split Capacitor (PSC) or a Brushless Permanent Magnet (BPM) motor. Blowers account for the majority of furnace electricity consumption. Therefore, accurate determination of the blower electricity consumption is important for understanding electricity consumption of furnaces. The electricity consumption of blower motors depends on the static pressure across the blower. This paper examines both types of blower motors in non-condensing non-weatherized gas furnaces at a range of static pressures. Fan performance data is based on manufacturer product literature and laboratory tests. We use field-measured static pressure in ducts to get typical system curves to calculate how furnaces would operate in the field. We contrast this with the electricity consumption of a furnace blower operating under the DOE test procedure and manufacturer rated conditions. Furnace electricity use is also affected by operating modes that happen at the beginning and end of each furnace firing cycle. These operating modes are the pre-purge and post-purge by the draft inducer, the on-delay and off-delay of the blower, and the hot surface ignitor operation. To accurately calculate this effect, we use the number of firing cycles in a typical California house in the Central Valley of California. Cooling hours are not considered in the DOE test procedure. We also account for furnace blower use by the air conditioner and stand-by power. Overall BPM motors outperform PSC motors, but the total electricity savings are significantly less than projected using the DOE test procedure conditions. The performance gains depend on the static pressure of the household ducts, which are typically much higher than in the test procedures.

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

2006-05-12T23:59:59.000Z

27

Building America Expert Meeting: Achieving the Best Installed Performance from High-Efficiency Residential Gas Furnaces  

Energy.gov (U.S. Department of Energy (DOE))

This report describes a Building America expert meeting hosted on July 28, 2011, by the Partnership for Advanced Residential Retrofit team. The purpose of this meeting was to identify installation practices that provide the best installed efficiency for residential gas furnaces, explain how AFUE and field efficiency can differ, and investigate the impact of installation practices on the efficiency and long-term durability of the furnace.

28

Recovery Act: ArcelorMittal USA Blast Furnace Gas Flare Capture  

SciTech Connect

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

29

DOE/EA-1745 FINAL ENVIRONMENTAL ASSESSMENT FOR THE BLAST FURNACE GAS FLARE  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

5 5 FINAL ENVIRONMENTAL ASSESSMENT FOR THE BLAST FURNACE GAS FLARE CAPTURE PROJECT AT THE ARCELORMITTAL USA, INC. INDIANA HARBOR STEEL MILL, EAST CHICAGO, INDIANA U.S. Department of Energy National Energy Technology Laboratory August 2010 DOE/EA-1745 FINAL ENVIRONMENTAL ASSESSMENT FOR THE BLAST FURNACE GAS FLARE CAPTURE PROJECT AT THE ARCELORMITTAL USA, INC. INDIANA HARBOR STEEL MILL, EAST CHICAGO, INDIANA U.S. Department of Energy National Energy Technology Laboratory August 2010 DOE/EA-1745 iii COVER SHEET Responsible Agency: U.S. Department of Energy (DOE) Title: Final Environmental Assessment for the Blast Furnace Gas Flare Capture Project at the ArcelorMittal USA, Inc. Indiana Harbor Steel Mill, East Chicago, Indiana

30

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

SciTech Connect

New single-family home construction represents a significant and important market for the introduction of energy-efficient gas-fired space heating and water-heating equipment. In the new construction market, the choice of furnace and water-heater type is primarily driven by first cost considerations and the availability of power vent and condensing water heaters. Few analysis have been performed to assess the economic impacts of the different combinations of space and water-heating equipment. Thus, equipment is often installed without taking into consideration the potential economic and energy savings of installing space and water-heating equipment combinations. In this study, we use a life-cycle cost analysis that accounts for uncertainty and variability of the analysis inputs to assess the economic benefits of gas furnace and water-heater design combinations. This study accounts not only for the equipment cost but also for the cost of installing, maintaining, repairing, and operating the equipment over its lifetime. Overall, this study, which is focused on US single-family new construction households that install gas furnaces and storage water heaters, finds that installing a condensing or power-vent water heater together with condensing furnace is the most cost-effective option for the majority of these houses. Furthermore, the findings suggest that the new construction residential market could be a target market for the large-scale introduction of a combination of condensing or power-vent water heaters with condensing furnaces.

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

2009-05-06T23:59:59.000Z

31

Refinery Furnaces Retrofit with Gas Turbines Achieve Both Energy Savings and Emission Reductions  

E-Print Network (OSTI)

A., Rome, Italy ABSTRACT Integrating gas turbines with refinery furnaces can be a cost effective means of reducing NO emissions while also generating electricity ~t an attractive heat rate. Design considerations and system costs are presented..., described in Figure 1, 2. The combustion oxygen is carried by a more I I i I' has been used as a design basis. The heater is based on the actual design of a unit built by KTI SpA. The furnace does not include air preheater or steam generation...

Giacobbe, F.; Iaquaniello, G.; Minet, R. G.; Pietrogrande, P.

32

Strategy Guideline: HVAC Equipment Sizing  

SciTech Connect

The heating, ventilation, and air conditioning (HVAC) system is arguably the most complex system installed in a house and is a substantial component of the total house energy use. A right-sized HVAC system will provide the desired occupant comfort and will run efficiently. This Strategy Guideline discusses the information needed to initially select the equipment for a properly designed HVAC system. Right-sizing of an HVAC system involves the selection of equipment and the design of the air distribution system to meet the accurate predicted heating and cooling loads of the house. Right-sizing the HVAC system begins with an accurate understanding of the heating and cooling loads on a space; however, a full HVAC design involves more than just the load estimate calculation - the load calculation is the first step of the iterative HVAC design procedure. This guide describes the equipment selection of a split system air conditioner and furnace for an example house in Chicago, IL as well as a heat pump system for an example house in Orlando, Florida. The required heating and cooling load information for the two example houses was developed in the Department of Energy Building America Strategy Guideline: Accurate Heating and Cooling Load Calculations.

Burdick, A.

2012-02-01T23:59:59.000Z

33

Baltimore Gas and Electric Company (Gas) - Residential Energy Efficiency  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

(Gas) - Residential Energy (Gas) - Residential Energy Efficiency Rebate Program Baltimore Gas and Electric Company (Gas) - Residential Energy Efficiency Rebate Program < Back Eligibility Residential Savings Category Home Weatherization Commercial Weatherization Sealing Your Home Ventilation Manufacturing Heating & Cooling Commercial Heating & Cooling Heating Program Info State Maryland Program Type Utility Rebate Program Rebate Amount Gas Furnace: $300 or $400 Duct Sealing: $200 Tune-ups: $100 Installation Rebates: Contact BGE The Baltimore Gas and Electric Company (BGE) offers the Smart Energy Savers Program for residential natural gas customers to improve the energy efficiency of eligible homes. Rebates are available for furnaces, HVAC system tune-ups, and insulation measures. All equipment and installation

34

Blast-furnace smelting with the injection of natural gas and coke-oven gas  

Science Journals Connector (OSTI)

A multizone mathematical model developed at Nekrasov Institute of Ferrous Metallurgy reveals the internal relations between the processes in a blast furnace. Using this model, the smelting processes and parameter...

I. G. Tovarovskii; A. E. Merkulov

2011-06-01T23:59:59.000Z

35

Thermal-destruction products of coal in the blast-furnace gas-purification system  

SciTech Connect

The lean, poorly clinkering coal and anthracite used to replace coke in blast furnaces has a considerable content of volatile components (low-molecular thermaldestruction products), which enter the water and sludge of the blast-furnace gas-purification system as petroleum products. Therefore, it is important to study the influence of coal on the petroleum-product content in the water and sludge within this system. The liberation of primary thermal-destruction products is investigated for anthracite with around 4 wt % volatiles, using a STA 449C Jupiter thermoanalyzer equipped with a QMC 230 mass spectrometer. The thermoanalyzer determines small changes in mass and thermal effects with high accuracy (weighing accuracy 10{sup -8} g; error in measuring thermal effects 1 mV). This permits experiments with single layers of coal particles, eliminating secondary reactions of its thermal-destruction products.

A.M. Amdur; M.V. Shibanova; E.V. Ental'tsev [Russian Academy of Sciences, Yekaterinburg (Russian Federation). Russia Institute of Metallurgy

2008-10-15T23:59:59.000Z

36

HVAC Cabinet Air Leakage Test Method- Building America Top Innovation  

Energy.gov (U.S. Department of Energy (DOE))

This 2014 Top Innovation describes Building America research that resulted in the development of an ASHRAE standard and standardized testing method for testing the air leakage of HVAC air handlers and furnace cabinets.

37

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...

38

Expert Meeting Report: Achieving the Best Installed Performance from High-Efficiency Residential Gas Furnaces  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Achieving the Best Installed Performance from High- Efficiency Residential Gas Furnaces Larry Brand Partnership for Advanced Residential Retrofit (PARR) March 2012 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, subcontractors, or affiliated partners makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade

39

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

40

Renovating Residential HVAC Systems HVAC Systems  

E-Print Network (OSTI)

- 1 - LBNL 57406 Renovating Residential HVAC Systems HVAC Systems J.A. McWilliams and I.S. Walker and Air Conditioning), and Stacy Hunt and Ananda Harzell (IBACOS). #12;- 3 - Renovating Residential HVAC Guideline for Residential HVAC Retrofits (http

Note: This page contains sample records for the topic "furnace gas hvac" 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

Burden distribution control for maintaining the central gas flow at No. 1 blast furnace in Pohang Works  

SciTech Connect

The causes for temperature lowering at the upper shaft center in Pohang No. 1 blast furnace were investigated. The test operation with charging notch change in the actual blast furnace and with a 1/12 scale model to Pohang No. 1 blast furnace were carried out in order to improve central gas flow in the shaft. Finally, rebuilding of the lower bunker interior was performed using the results of model experiments. It was confirmed that the main reason for the gas temperature lowering at the upper shaft center was the smaller particle size at center than the wall according to the discharging characteristics of center feed bunker with stone box. The central gas flow could be secured through modifying the stone box in the bunker.

Jung, S.K.; Lee, Y.J.; Suh, Y.K.; Ahn, T.J.; Kim, S.M. [Pohang Iron and Steel Co. Ltd. (Korea, Republic of). Technical Research Labs.

1995-12-01T23:59:59.000Z

42

Residential HVAC Data, Assumptions and Methodology for End-Use Forecasting with EPRI-REEPS 2.1  

E-Print Network (OSTI)

Imports/Exports Gas Availability Change efficiency choice equation Add technologiestoHVAC model Adjust cost-efficiency parameter Develop HVAC Conversion

Johnson, F.X.

2010-01-01T23:59:59.000Z

43

HVAC Equipment Rebate Program | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

HVAC Equipment Rebate Program HVAC Equipment Rebate Program HVAC Equipment Rebate Program < Back Eligibility Agricultural Commercial Industrial Installer/Contractor Institutional Multi-Family Residential Nonprofit Schools Savings Category Heating & Cooling Commercial Heating & Cooling Heating Cooling Heat Pumps Maximum Rebate Rebates of greater than $5,000 require pre-approval Program Info Funding Source Efficiency Vermont Public Benefit Fund Expiration Date 06/30/2013 State Vermont Program Type State Rebate Program Rebate Amount Varies depending on technology and efficiency Provider Efficiency Vermont NOTE: Rebate reservations are required for all boiler and furnace projects. Efficiency Vermont offers rebates for commercial installations of high-efficiency HVAC equipment and controls. For businesses and purchases

44

Residential HVAC Data, Assumptions and Methodology for End-Use Forecasting with EPRI-REEPS 2.1  

E-Print Network (OSTI)

Heating (Screen HV-6cl) Fuel Price Elasticity Electric Furnace Gas Furnace LPG Furnace OilHeating Price Expense Electric Furnace n/a n/a Gas Furnace Oil

Johnson, F.X.

2010-01-01T23:59:59.000Z

45

Fight Fall Allergies and Save Energy by Checking Your HVAC System |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Fight Fall Allergies and Save Energy by Checking Your HVAC System Fight Fall Allergies and Save Energy by Checking Your HVAC System Fight Fall Allergies and Save Energy by Checking Your HVAC System October 15, 2012 - 3:19pm Addthis Change your furnace filter to help keep allergies at bay and keep your furnace and air conditioner running efficiently. | Photo courtesy of ©iStockphoto.com/JaniceRichard. Change your furnace filter to help keep allergies at bay and keep your furnace and air conditioner running efficiently. | Photo courtesy of ©iStockphoto.com/JaniceRichard. Elizabeth Spencer Communicator, National Renewable Energy Laboratory What does this mean for me? Change your furnace filters every month or two to keep your HVAC equipment operating efficiently. I have unbelievably horrible fall allergies. I've never figured out what

46

Improving the Field Performance of Natural Gas Furnaces, Chicago, Illinois (Fact Sheet), Building America Case Study: Technology Solutions for New and Existing Homes, Building Technologies Office (BTO)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

the Field Performance the Field Performance of Natural Gas Furnaces Chicago, Illinois PROJECT INFORMATION Project Name: Improving Gas Furnace Performance-A Field and Lab Study at End of Life Location: Chicago, IL Partnership for Advanced Residential Retrofit www.gastechnology.org Building Component: Natural Gas Furnaces Application: New and/or retrofit; Single and/or multifamily Year Tested: 2012/2013 Applicable Climate Zone(s): All or specify which ones PERFORMANCE DATA Cost of Energy Efficiency Measure (including labor): $250 for adjustments Projected Energy Savings: 6.4% heating savings Projected Energy Cost Savings: $100/year climate-dependent Gas furnaces can successfully operate in the field for 20 years or longer with

47

Building America Technlogy Solutions for New and Existing Homes: Improving the Field Performance of Natural Gas Furnaces, Chicago, Illinois (Fact Sheet)  

Energy.gov (U.S. Department of Energy (DOE))

In this project, the PARR research team examined the impact that common installation practices and age-induced equipment degradation may have on the installed performance of natural gas furnaces, as measured by steady-state efficiency and AFUE.

48

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

49

HVAC Market Study:  

NLE Websites -- All DOE Office Websites (Extended Search)

HVAC Market Study: Understanding how energy efficient products get to market Fall 2014 through Winter 2015 Research Manager: Carrie Cobb, clcobb@bpa.gov, 503-230-4985 HVAC systems...

50

HVAC Maintenance and Technologies  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

HVAC - HVAC - Maintenance and Technologies Federal Utility Partnership Working Group Meeting Providence, Rhode Island April 15, 2010 BY Ramin Faramarzi, P.E. Technology Test Centers (TTC) Design and Engineering Services Southern California Edison (SCE) www.sce.com/rttc 2 Outline * Introduction to SCE's TTC * Overview of energy challenges in California (CA) * Role of HVAC in CA's energy and demand equations * Factors affecting HVAC performance * Focus on SCE's research on maintenance faults * Next generation of HVAC equipment * HVAC technologies on SCE's TTC radar * Black boxes - do they all work? 3 SCE's Technology Test Centers * SCE applied research facilities located in Irwindale, CA comprised of 3 test beds: * Refrigeration * HVAC * Lighting * Coming Soon! - A new ZNE lab 4 Refrigeration Testing

51

HVAC Installed Performance  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

HVAC Installed Performance HVAC Installed Performance ESI, Tim Hanes Context * The building envelope has historically been the focus in residential homes. * The largest consumer of energy in residential homes is typically the HVAC system. * Testing the performance of the HVAC system has not been pursued to its full potential. Technical Approach * Currently very little performance testing is being done to the HVAC system. * The only way to know if a HVAC system is operating correctly is to measure the Btu/h. * This should be done at the equipment and at the the system. Recommended Guidance * Training of HVAC technicians, installers, and salespeople is a must. * If only the technician is trained than implementing the change will not happen. * Public awareness of proper installation and its

52

Collection and conversion of silicon furnace waste gas into higher value products: Phase 3, 6 MW pilot plant dc closed furnace technology. Final report  

SciTech Connect

The construction and operation of a 6 MW, closed dc furnace for smelting silicon was the primary focus of Phase 3. A 6 MW, dc closed furnace pilot plant was built in East Selkirk, Manitoba, Canada. The furnace is equipped with world`s most modern automatic control system used to control and monitor the process variables and operational data. This control system is suitable for commercial applications and could be used with either closed or open dc furnaces for smelting silicon or ferrosilicon. The construction was started in September 1990, and the facility was operational within 18 months. Following successful commissioning of the pilot plant in June 1992, twelve smelting test campaigns were conducted through November 1994.

Dosaj, V.D.

1995-01-01T23:59:59.000Z

53

Direct thermal to electrical energy conversion using very low bandgap TPV cells in a gas-fired furnace system  

Science Journals Connector (OSTI)

Abstract In this paper, electricity generation using very low bandgap InGaAsSb thermophotovoltaic (TPV) cells whose bandgap is 0.53 eV was investigated in a gas-fired furnace system where thermal radiation was emitted from a metal alloy emitter. The electric output of the InGaAsSb TPV cells was characterized under various operating conditions. The cell short circuit density was measured to be 3.01 A/cm2 at an emitter temperature of 1197 °C. At this emitter temperature, an electric power density of 0.65 W/cm2 was produced by the TPV cells. Experimental results show that direct thermal to electrical energy conversion was achieved in a gas-fired heating furnace system. Such a system could be employed to form a micro-combined heat and power (micro-CHP) process where exhaust heat is utilized for home heating needs. The TPV integrated energy system provides an effective means for primary energy savings.

K. Qiu; A.C.S. Hayden

2014-01-01T23:59:59.000Z

54

HVAC Maintenance and Technologies  

Energy.gov (U.S. Department of Energy (DOE))

Presentation covers the HVAC maintenance and technologies, and is given at the Spring 2010 Federal Utility Partnership Working Group (FUPWG) meeting in Providence, Rhode Island.

55

Advanced steel reheat furnace  

SciTech Connect

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

56

CALIFORNIA ENERGY Large HVAC Building  

E-Print Network (OSTI)

CALIFORNIA ENERGY COMMISSION Large HVAC Building Survey Information Database of Buildings over 100 Design of Large Commercial HVAC Systems research project, one of six research elements in the Integrated Design of Large Commercial HVAC Systems Integrated Design of Small Commercial HVAC Systems Integrated

57

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

SciTech Connect

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

58

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...

59

Furnace Black Characterization  

NLE Websites -- All DOE Office Websites (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

60

HVAC Installed Performance  

Energy.gov (U.S. Department of Energy (DOE))

This presentation was given at the Summer 2012 DOE Building America meeting on July 25, 2012, and addressed the question HVAC proper installation energy savings: over-promising or under-delivering?"

Note: This page contains sample records for the topic "furnace gas hvac" 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

Development of a high-performance coal-fired power generating system with pyrolysis gas and char-fired high temperature furnace (HITAF)  

SciTech Connect

A concept for an advanced coal-fired combined-cycle power generating system is currently being developed. The first phase of this three-phase program consists of conducting the necessary research and development to define the system, evaluating the economic and technical feasibility of the concept, and preparing an R D plan to develop the concept further. The power generating system being developed in this project will be an improvement over current coal-fired systems. Goals have been specified that relate to the efficiency, emissions, costs, and general operation of the system. The system proposed to meet these goals is a combined-cycle system where air for a gas turbine is indirectly heated to approximately 1800[degrees]F in furnaces fired with coal-derived fuels and then directly heated in a natural-gas-fired combustor to about 2400[degrees]F. The system is based on a pyrolyzing process that converts the coal into a low-Btu fuel gas and char. The fuel gas is relatively clean, and it is fired to heat tube surfaces that are susceptible to corrosion and problems from ash deposition. In particular, the high-temperature air heater tubes, which will need to be a ceramic material, will be located in a separate furnace or region of a furnace that is exposed to combustion products from the low-Btu fuel gas only.

Not Available

1993-02-01T23:59:59.000Z

62

Independent Validation and Verification of Process Design and Optimization Technology Diagnostic and Control of Natural Gas Fired Furnaces via Flame Image Analysis Technology  

SciTech Connect

The United States Department of Energy, Industrial Technologies Program has invested in emerging Process Design and Optimizations Technologies (PDOT) to encourage the development of new initiatives that might result in energy savings in industrial processes. Gas fired furnaces present a harsh environment, often making accurate determination of correct air/fuel ratios a challenge. Operation with the correct air/fuel ratio and especially with balanced burners in multi-burner combustion equipment can result in improved system efficiency, yielding lower operating costs and reduced emissions. Flame Image Analysis offers a way to improve individual burner performance by identifying and correcting fuel-rich burners. The anticipated benefit of this technology is improved furnace thermal efficiency, and lower NOx emissions. Independent validation and verification (V&V) testing of the FIA technology was performed at Missouri Forge, Inc., in Doniphan, Missouri by Environ International Corporation (V&V contractor) and Enterprise Energy and Research (EE&R), the developer of the technology. The test site was selected by the technology developer and accepted by Environ after a meeting held at Missouri Forge. As stated in the solicitation for the V&V contractor, 'The objective of this activity is to provide independent verification and validation of the performance of this new technology when demonstrated in industrial applications. A primary goal for the V&V process will be to independently evaluate if this technology, when demonstrated in an industrial application, can be utilized to save a significant amount of the operating energy cost. The Seller will also independently evaluate the other benefits of the demonstrated technology that were previously identified by the developer, including those related to product quality, productivity, environmental impact, etc'. A test plan was provided by the technology developer and is included as an appendix to the summary report submitted by Environ (Appendix A). That plan required the V&V contractor to: (1) Establish the as-found furnace operating conditions; (2) Tune the furnace using currently available technology to establish baseline conditions; (3) Tune the furnace using the FIA technology; and (4) Document the improved performance that resulted from application of the FIA technology. It is important to note that the testing was not designed to be a competition or comparison between two different methodologies that could be used for furnace tuning. Rather, the intent was to quantify improvements in furnace performance that could not be achieved with existing technology. Therefore, the measure of success is improvement beyond the furnace efficiency obtainable using existing furnace optimization methods rather than improvement from the as found condition.

Cox, Daryl [ORNL

2009-05-01T23:59:59.000Z

63

Development of a high-performance coal-fired power generating system with pyrolysis gas and char-fired high temperature furnace (HITAF)  

SciTech Connect

A concept for an advanced coal-fired combined-cycle power generating system is currently being developed. The first phase of this three-phase program consists of conducting the necessary research and development to define the system, evaluate the economic and technical feasibility of the concept, and prepare an R D plan to develop the concept further. Foster Wheeler Development Corporation is leading a team ofcompanies involved in this effort. The system proposed to meet these goals is a combined-cycle system where air for a gas turbine is indirectly heated to approximately 1800[degrees]F in furnaces fired with cool-derived fuels and then directly heated in a natural-gas-fired combustor up to about 2400[degrees]F. The system is based on a pyrolyzing process that converts the coal into a low-Btu fuel gas and char. The fuelgas is a relatively clean fuel, and it is fired to heat tube surfaces that are susceptible to corrosion and problems from ash deposition. In particular, the high-temperature air heater tubes, which will need tobe a ceramic material, will be located in a separate furnace or region of a furnace that is exposed to combustion products from the low-Btu fuel gas only. A simplified process flow diagram is shown.

Not Available

1992-11-01T23:59:59.000Z

64

Effect of Siloxanes Contained in Natural Gas on the Operation of a Residential Furnace  

Science Journals Connector (OSTI)

(1) Many facilities exist worldwide that use biomethane (biogas or LFG) for the production of power or electricity, and concerns about global warming are likely to encourage their further capture and utilization. ... Because of the challenges siloxanes present to the beneficial use of biomethane, they have attracted the attention of researchers in the renewable energy area. ... (14) Regeneration involves burning the off-gas, which releases silica particulates into the atmosphere and consumes biomethane to operate the incinerators. ...

Nitin Nair; Arjun Vas; Tongyu Zhu; Wenjing Sun; Jorge Gutierrez; Jack Chen; Fokion Egolfopoulos; Theodore T. Tsotsis

2013-04-11T23:59:59.000Z

65

Electric Power Generation Using Low Bandgap TPV Cells in a Gas?fired Heating Furnace  

Science Journals Connector (OSTI)

Low bandgap TPV cells are preferred for electric power generation in TPV cogeneration systems. Recently significant progress has been made in fabrication of low bandgap semiconductor TPV devices such as InGaAsSb and InGaAs cells. However it appears that only limited data are available in the literature with respect to the performance of these TPV cells in combustion?driven TPV systems. In the research presented in this paper power generation using recently?developed InGaAsSb TPV cells has been investigated in a gas?fired space heating appliance. The combustion performance of the gas burner associated with a broadband radiator was evaluated experimentally. The radiant power density and radiant efficiency of the gas?heated radiator were determined at different degrees of exhaust heat recuperation. Heat recuperation is shown to have a certain effect on the combustion operation and radiant power output. The electric output characteristics of the InGaAsSb TPV devices were investigated under various combustion conditions. It was found that the cell short circuit density was greater than 1 A/cm2 at a radiator temperature of 930°C when an optical filter was used. An electric power density of 0.54 W/cm2 was produced at a radiator temperature of 1190°C. Furthermore modeling calculations were carried out to reveal the influence of TPV cell bandgap and radiator temperature on power output and conversion efficiency. Finally the design aspects of combustion?driven TPV systems were analyzed showing that development of a special combustion device with high conversion level of fuel chemical energy to useful radiant energy is required to improve further the system efficiency.

K. Qiu; A. C. S. Hayden

2003-01-01T23:59:59.000Z

66

Chapter 19: HVAC Controls (DDC/EMS/BAS) Evaluation Protocol  

SciTech Connect

The HVAC Controls Evaluation Protocol is designed to address evaluation issues for direct digital controls/energy management systems/building automation systems (DDC/EMS/BAS) that are installed to control heating, ventilation, and air-conditioning (HVAC) equipment in commercial and institutional buildings. (This chapter refers to the DDC/EMS/BAS measure as HVAC controls.) This protocol may also be applicable to industrial facilities such as clean rooms and labs, which have either significant HVAC equipment or spaces requiring special environmental conditions. This protocol addresses only HVAC-related equipment and the energy savings estimation methods associated with installing such control systems as an energy efficiency measure. The affected equipment includes: Air-side equipment (air handlers, direct expansion systems, furnaces, other heating- and cooling-related devices, terminal air distribution equipment, and fans); Central plant equipment (chillers, cooling towers, boilers, and pumps). These controls may also operate or affect other end uses, such as lighting, domestic hot water, irrigation systems, and life safety systems such as fire alarms and other security systems. Considerable nonenergy benefits, such as maintenance scheduling, system component troubleshooting, equipment failure alarms, and increased equipment lifetime, may also be associated with these systems. When connected to building utility meters, these systems can also be valuable demand-limiting control tools. However, this protocol does not evaluate any of these additional capabilities and benefits.

Romberger, J.

2014-11-01T23:59:59.000Z

67

Definition: HVAC | Open Energy Information  

Open Energy Info (EERE)

HVAC HVAC Jump to: navigation, search Dictionary.png HVAC An abbreviation for the heating, ventilation, and air-conditioning system; the system or systems that condition air in a building.[1] View on Wikipedia Wikipedia Definition HVAC is the technology of indoor and vehicular environmental comfort. HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. Refrigeration is sometimes added to the field's abbreviation as HVAC&R or HVACR, or ventilating is dropped as in HACR (such as the designation of HACR-rated circuit breakers). HVAC is important in the design of medium to large industrial and office buildings such as skyscrapers and in marine environments such as aquariums, where safe and

68

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

69

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

70

Peoples Gas - Residential Rebate Program (Illinois) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Peoples Gas - Residential Rebate Program (Illinois) Peoples Gas - Residential Rebate Program (Illinois) Peoples Gas - Residential Rebate Program (Illinois) < Back Eligibility Multi-Family Residential Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heating Home Weatherization Commercial Weatherization Cooling Appliances & Electronics Water Heating Maximum Rebate 100% of project cost Program Info Expiration Date 05/31/2013 State Illinois Program Type Utility Rebate Program Rebate Amount Furnace: $300 -$500 Boiler: varies, depending on size and efficiency Boiler Controls: $100/unit Complete HVAC System Replacement: $650 - $1,000 Water Heater (Tankless): $450 Water Heater (Indirect): $275 Water Heater (Storage Tank): $100 Attic Insulation: $0.10/sq ft Programmable Thermostat: $50

71

CALIFORNIA ENERGY Large HVAC Energy Impact Report  

E-Print Network (OSTI)

CALIFORNIA ENERGY COMMISSION Large HVAC Energy Impact Report Statewide Energy Impact Report are part of the Integrated Design of Large Commercial HVAC Systems research project. The reports: Productivity and Interior Environments Integrated Design of Large Commercial HVAC Systems Integrated Design

72

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

73

Advanced HVAC Systems | Department of Energy  

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

HVAC Systems Advanced HVAC Systems Lead Performer: Oak Ridge National Laboratory - Oak Ridge, TN Partners: -- Indian Institute of Technology Bombay - Maharashtra, India -- Malviya...

74

Furnace and Boiler Basics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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.

75

HVAC: Maintaining HVAC equipment with air intake filters  

Science Journals Connector (OSTI)

Airborne debris, such as domestic waste, leaves, pollen, insects and even plastic carrier bags is the leading cause of fouling and clogging of cooling towers, heat exchangers, air cooled chillers and other HVAC systems. Richard Betts, managing director of UK-based RAB Specialist Engineers, provides Filtration+Separation with some practical advice on how to maintain HVAC equipment.

Richard Betts

2013-01-01T23:59:59.000Z

76

DOE Furnace Rule Ex Parte Communication  

Energy.gov (U.S. Department of Energy (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...

77

HVAC Improvements for Existing Houses  

NLE Websites -- All DOE Office Websites (Extended Search)

HVAC Improvements for Existing Houses HVAC Improvements for Existing Houses Speaker(s): Chryséis Bovagnet Date: September 5, 2002 - 12:00pm Location: Bldg. 90 Many older houses in the US are either not well designed from a thermal point of view or have HVAC (Heating Ventilation and Air Conditioning) systems in need of repairs or improvements. The building envelopes tend to have poor insulation and lots of leakage, and the HVAC systems are inefficient. The cooling/heating equipment is often located outside of the conditioned space (e.g. in attics or crawlspaces) with ducts that leak and have poor insulation, which cause energy loss and bad occupant comfort on peak days or in extreme climates. We developed a series of retrofits that will allow us to reduce the energy consumption of residential HVAC

78

gas | OpenEI  

Open Energy Info (EERE)

gas gas 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)

79

HVAC's Variable Refrigerant Flow (VRF) Technology  

E-Print Network (OSTI)

1 Comfort by Design Steve Jones Commercial Sales Manager for Mitsubishi Southwest Business Unit HVAC?s Variable Refrigerant Flow (VRF) Technology HVAC Industry Overview HVAC Market Dollar Volume $18 Billion Source:;NABH Research....2M Systems Ductless is a small percent of the U.S. HVAC market but current building and energy usage trends indicate a large growth opportunity Determining the Proper Application Worldwide Usage-Opportunity Window Unitary Chillers...

Jones, S.

2012-01-01T23:59:59.000Z

80

HVAC efficiency: Can filter selection reduce HVAC energy costs?  

Science Journals Connector (OSTI)

In a society becoming more aware of the effects of energy consumption, Zoe Grainge takes a look at whether filter efficiency can go some way to ease the energy burden of HVAC systems.

Zoe Grainge

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "furnace gas hvac" 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

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...

82

Case study field evaluation of a systems approach to retrofitting a residential HVAC system  

SciTech Connect

This case study focusing on a residence in northern California was undertaken as a demonstration of the potential of a systems approach to HVAC retrofits. The systems approach means that other retrofits that can affect the HVAC system are also considered. For example, added building envelope insulation reduces building loads so that smaller capacity HVAC system can be used. Secondly, we wanted to examine the practical issues and interactions with contractors and code officials required to accomplish the systems approach because it represents a departure from current practice. We identified problems in the processes of communication and installation of the retrofit that led to compromises in the final energy efficiency of the HVAC system. These issues must be overcome in order for HVAC retrofits to deliver the increased performance that they promise. The experience gained in this case study was used to optimize best practices guidelines for contractors (Walker 2003) that include building diagnostics and checklists as tools to assist in ensuring the energy efficiency of ''house as a system'' HVAC retrofits. The best practices guidelines proved to be an excellent tool for evaluating the eight existing homes in this study, and we received positive feedback from many potential users who reviewed and used them. In addition, we were able to substantially improve the energy efficiency of the retrofitted case study house by adding envelope insulation, a more efficient furnace and air conditioner, an economizer and by reducing duct leakage.

Walker, Iain S.; McWiliams, Jennifer A.; Konopacki, Steven J.

2003-09-01T23:59:59.000Z

83

Co-combustion of refuse derived fuel and coal in a cyclone furnace at the Baltimore Gas and Electric Company, C. P. Crane Station  

SciTech Connect

A co-combustion demonstration burn of coal and fluff refuse-derived fuel (RDF) was conducted by Teledyne National and Baltimore Gas and Electric Company. This utility has two B and W cyclone furnaces capable of generating 400 MW. The facility is under a prohibition order to convert from No. 6 oil to coal; as a result, it was desirable to demonstrate that RDF, which has a low sulfur content, can be burned in combination with coals containing up to 2% sulfur, thus reducing overall sulfur emissions without deleterious effects. Each furnace consists of four cyclones capable of generating 1,360,000 pounds per hour steam. The tertiary air inlet of one of the cyclones was modified with an adapter to permit fluff RDF to be pneumatically blown into the cyclone. At the same time, coal was fed into the cyclone furnace through the normal coal feeding duct, where it entered the burning chamber tangentially and mixed with the RDF during the burning process. Secondary shredded fluff RDF was prepared by the Baltimore County Resource Recovery Facility. The RDF was discharged into a receiving station consisting of a belt conveyor discharging into a lump breaker, which in turn, fed the RDF into a pneumatic line through an air-lock feeder. A total of 2316 tons were burned at an average rate of 5.6 tons per hour. The average heat replacement by RDF for the cyclone was 25%, based on Btu input for a period of forty days. The range of RDF burned was from 3 to 10 tons per hour, or 7 to 63% heat replacement. The average analysis of the RDF (39 samples) for moisture, ash, heat (HHV) and sulfur content were 18.9%, 13.4%, 6296 Btu/lb and 0.26% respectively. RDF used in the test was secondary shredded through 1-1/2 inch grates producing the particle size distribution of from 2 inches to .187 inches. Findings to date after inspection of the boiler and superheater indicate satisfactory results with no deleterious effects from the RDF.

Not Available

1982-03-01T23:59:59.000Z

84

Development of a high-performance coal-fired power generating system with pyrolysis gas and char-fired high temperature furnace (HITAF). Quarterly progress report No. 4, October--December 1992  

SciTech Connect

A concept for an advanced coal-fired combined-cycle power generating system is currently being developed. The first phase of this three-phase program consists of conducting the necessary research and development to define the system, evaluating the economic and technical feasibility of the concept, and preparing an R&D plan to develop the concept further. The power generating system being developed in this project will be an improvement over current coal-fired systems. Goals have been specified that relate to the efficiency, emissions, costs, and general operation of the system. The system proposed to meet these goals is a combined-cycle system where air for a gas turbine is indirectly heated to approximately 1800{degrees}F in furnaces fired with coal-derived fuels and then directly heated in a natural-gas-fired combustor to about 2400{degrees}F. The system is based on a pyrolyzing process that converts the coal into a low-Btu fuel gas and char. The fuel gas is relatively clean, and it is fired to heat tube surfaces that are susceptible to corrosion and problems from ash deposition. In particular, the high-temperature air heater tubes, which will need to be a ceramic material, will be located in a separate furnace or region of a furnace that is exposed to combustion products from the low-Btu fuel gas only.

Not Available

1993-02-01T23:59:59.000Z

85

SIMULATION OF RESIDENTIAL HVAC SYSTEM PERFORMANCE  

E-Print Network (OSTI)

1 LBNL-47622 SIMULATION OF RESIDENTIAL HVAC SYSTEM PERFORMANCE Walker, I., Siegel, J ..................................................... 9 #12;3 ABSTRACT In many parts of North America residential HVAC systems are installed outside of the simulations is that they are dynamic - which accounts for cyclic losses from the HVAC system and the effect

86

Energirigtige pumpekoblinger i HVAC-systemer  

E-Print Network (OSTI)

Energirigtige pumpekoblinger i HVAC-systemer PSO 2003 - FORSKNING & UDVIKLING I EFFEKTIV energieffektive HVAC-aggregater #12;InformationomProjektnr.:335-021 PROCESSEN: Projektet er gennemført af en reguleringsprincipper, mens Exhausto har leveret HVAC-aggregat og knowhow inden for klimasystemer. Grundfos

87

MODELING PARTICLE DEPOSITION ON HVAC HEAT EXCHANGERS  

E-Print Network (OSTI)

LBNL-49339 MODELING PARTICLE DEPOSITION ON HVAC HEAT EXCHANGERS J.A. Siegel1,3 * and W.W. Nazaroff2 Department of Energy under contract DE-AC03-76SF00098. #12;MODELING PARTICLE DEPOSITION ON HVAC HEAT, such as discontinuities in the fins, are hypothesized to be responsible for the discrepancy. INDEX TERMS HVAC, Fouling

88

PROJECT REPORT HVAC EQUIPMENT DEMOGRAPHICS AND CAPACITY  

E-Print Network (OSTI)

PROJECT REPORT HVAC EQUIPMENT DEMOGRAPHICS AND CAPACITY ANALYSIS TOOLS APPLICABLE TO MULTI Commercial HVAC Design Process 12 5.0 Conclusion 18 6.0 References 19 TABLE OF CONTENTS SECTIONS #12;MULTI performance by collectively improving the enve- lope, lighting and HVAC systems. The primary goals of the UC

California at Davis, University of

89

CALIFORNIA ENERGY Small HVAC Database Of Monitored  

E-Print Network (OSTI)

CALIFORNIA ENERGY COMMISSION Small HVAC Database Of Monitored Information Database of Compiled of the Integrated Design of Small Commercial HVAC Systems research project. The reports are a result of funding: Productivity and Interior Environments Integrated Design of Large Commercial HVAC Systems Integrated Design

90

CALIFORNIA ENERGY Small HVAC Problems and Potential  

E-Print Network (OSTI)

CALIFORNIA ENERGY COMMISSION Small HVAC Problems and Potential Savings Reports Summary of Problems of the Integrated Design of Small Commercial HVAC Systems research project. The reports are a result of funding: Productivity and Interior Environments Integrated Design of Large Commercial HVAC Systems Integrated Design

91

CALIFORNIA ENERGY Small HVAC System Design Guide  

E-Print Network (OSTI)

CALIFORNIA ENERGY COMMISSION Small HVAC System Design Guide DESIGNGUIDELINES October 2003 500;#12;Small HVAC System Design Guide Acknowledgements i Acknowledgements The products and outcomes presented; Darren Goody, PECI, Design Guide review. #12;Small HVAC System Design Guide Preface ii Preface The Small

92

Development Practice in HVAC Controls  

NLE Websites -- All DOE Office Websites (Extended Search)

Development Practice in HVAC Controls Development Practice in HVAC Controls Speaker(s): John Zhou Date: April 11, 2011 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Philip Haves The presentation will introduce development tools and design considerations used in HVAC controls development. Controls development use simulation, lab testing and field trial at different phases of the project cycle to improve control performance and to achieve rapid development. Development starts with simulation to originate and define algorithm concept. The concept is then implemented in a prototype controller, and tested in lab environment. The concept is refined and verified by analyzing lab results. In the final phase of development, controllers with refined and verified algorithms are installed in field trial sites to ensure system integration and to confirm

93

Development of a high-performance coal-fired power generating system with pyrolysis gas and char-fired high temperature furnace (HITAF). Quarterly progress report No. 3, July--September 1992  

SciTech Connect

A concept for an advanced coal-fired combined-cycle power generating system is currently being developed. The first phase of this three-phase program consists of conducting the necessary research and development to define the system, evaluate the economic and technical feasibility of the concept, and prepare an R & D plan to develop the concept further. Foster Wheeler Development Corporation is leading a team ofcompanies involved in this effort. The system proposed to meet these goals is a combined-cycle system where air for a gas turbine is indirectly heated to approximately 1800{degrees}F in furnaces fired with cool-derived fuels and then directly heated in a natural-gas-fired combustor up to about 2400{degrees}F. The system is based on a pyrolyzing process that converts the coal into a low-Btu fuel gas and char. The fuelgas is a relatively clean fuel, and it is fired to heat tube surfaces that are susceptible to corrosion and problems from ash deposition. In particular, the high-temperature air heater tubes, which will need tobe a ceramic material, will be located in a separate furnace or region of a furnace that is exposed to combustion products from the low-Btu fuel gas only. A simplified process flow diagram is shown.

Not Available

1992-11-01T23:59:59.000Z

94

Paired Straight Hearth Furnace  

Energy.gov (U.S. Department of Energy (DOE))

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

95

Ozone removal by HVAC filters  

Science Journals Connector (OSTI)

Residential and commercial HVAC filters that have been loaded with particles during operation in the field can remove ozone from intake or recirculated air. However, knowledge of the relative importance of HVAC filters as a removal mechanism for ozone in residential and commercial buildings is incomplete. We measured the ozone removal efficiencies of clean (unused) fiberglass, clean synthetic filters, and field-loaded residential and commercial filters in a controlled laboratory setting. For most filters, the ozone removal efficiency declined rapidly but converged to a non-zero (steady-state) value. This steady-state ozone removal efficiency varied from 0% to 9% for clean filters. The mean steady-state ozone removal efficiencies for loaded residential and commercial filters were 10% and 41%, respectively. Repeated exposure of filters to ozone following a 24-h period of no exposure led to a regeneration of ozone removal efficiency. Based on a theoretical scaling analysis of mechanisms that are involved in the ozone removal process, we speculate that the steady-state ozone removal efficiency is limited by reactant diffusion out of particles, and that regeneration is due to internal diffusion of reactive species to sites available to ozone for reaction. Finally, by applying our results to a screening model for typical residential and commercial buildings, HVAC filters were estimated to contribute 22% and 95%, respectively, of total ozone removal in HVAC systems.

P. Zhao; J.A. Siegel; R.L. Corsi

2007-01-01T23:59:59.000Z

96

Software tools for HVAC research  

Science Journals Connector (OSTI)

Energy saving methods can be employed to reduce energy consumption in buildings, or improve indoor thermal conditions. An example of those methods is the use of permeable coverings, but there are other important parameters like thermal inertia. To understand ... Keywords: Building, Computer, Design, Energy saving, HVAC, Software tools

José A. Orosa; Armando C. Oliveira

2011-10-01T23:59:59.000Z

97

STATE OF CALIFORNIA CERTIFICATE OF COMPLIANCE, PRESCRIPTIVE HVAC ALTERATIONS  

E-Print Network (OSTI)

STATE OF CALIFORNIA CERTIFICATE OF COMPLIANCE, PRESCRIPTIVE HVAC ALTERATIONS CEC-MECH-1C-ALT-HVAC (Revised 07/10) CALIFORNIA ENERGY COMMISSION CERTIFICATE OF COMPLIANCE MECH-1C-ALT-HVAC Prescriptive HVAC Steps" column below. Note: After installation of HVAC units and/or ducts, the Installation

98

HVAC system optimization with CO2 concentration control using genetic algorithms  

Science Journals Connector (OSTI)

This study describes the use of genetic algorithms (GAs) for operating standard HVAC systems (HVAC—heating, ventilation and air conditioning) in order to optimize performance, primarily with regard to power saving. Genetic algorithms were introduced as an instrument for solving optimization problems. Analytic optimization procedures are widely used in other fields of engineering, but they are difficult to operate within HVAC systems, because the range of the research is usually too broad, the problems are not linear but rather discontinuous, and they mostly have complex limitations. This is why for this type of system genetic algorithms are used, since they have the qualities of robustness and efficiency that are crucial for finding the optimal solution. A simulation is conducted in order to demonstrate how much power can be saved by using the suggested method of CO2 concentration control in a standard HVAC system. In addition to Matlab Simulink, the suggested method is verified with Energy software.

Velimir Congradac; Filip Kulic

2009-01-01T23:59:59.000Z

99

Empirical Methodologies for Improving HVAC Efficiency  

NLE Websites -- All DOE Office Websites (Extended Search)

Empirical Methodologies for Improving HVAC Efficiency Empirical Methodologies for Improving HVAC Efficiency Speaker(s): Anil Aswani Date: September 21, 2012 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Michael Wetter This talk describes the use of empirical methodologies that we have developed for the purpose of improving heating, ventilation, and air-conditioning (HVAC) efficiency through better control algorithms and configuration. We show that semiparametric regression can both identify simplified models of thermal HVAC dynamics while also estimating time-varying heating loads using only real-time temperature measurements from thermostats. These models can be used with our learning-based model predictive control (LBMPC) method in order to improve the energy-efficiency of HVAC. Experiments on testbeds with different types of HVAC show the

100

HVAC Technician | Princeton Plasma Physics Lab  

NLE Websites -- All DOE Office Websites (Extended Search)

HVAC Technician HVAC Technician Department: Facilities Supervisor(s): Tom Ward Staff: L&S 07 Requisition Number: 1300884 Under the supervision of the General Lead Technician and Lead HVAC Technician, the incumbent will be responsible for the installation, preventative maintenance, troubleshooting and repair of various HVAC and refrigeration equipment; local HVAC control systems and ancillary support equipment; and will work with other groups within the Division and throughout the Laboratory to ensure long-term, safe and efficient operation of HVAC and refrigeration systems. All tasks must be completed in a timely, cost efficient manner, support on-going sustainability initiatives and energy efficiency programs at the Laboratory. The incumbent is expected to utilize thorough theoretical knowledge and techniques to accomplish

Note: This page contains sample records for the topic "furnace gas hvac" 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

Adaptive HVAC zone modeling for sustainable buildings  

Science Journals Connector (OSTI)

Control of energy flows within a building is critical to achieving optimal performance of heating, ventilation and air-conditioning (HVAC) systems. To design optimal HVAC control strategies, a dynamic model of the HVAC system – particularly the building zones that it services – is essential. As analysis of building energy consumption is facilitated by the accurate prediction of indoor environmental conditions, techniques that dynamically model HVAC zones are crucial, and as such, is an active area of research. This paper focuses on real-time HVAC zone model fitting and prediction techniques based on physical principles, as well as the use of genetic algorithms for optimization. The proposed approach is validated by comparing real-time HVAC zone model fitting and prediction against the corresponding experimental measurements. In addition, comparison with prediction results using an algorithm based on feedback-delayed Kalman filters has demonstrated the superiority of the proposed approach in terms of prediction accuracy.

Glenn Platt; Jiaming Li; Ronxin Li; Geoff Poulton; Geoff James; Josh Wall

2010-01-01T23:59:59.000Z

102

Development of a high-performance coal-fired power generating system with pyrolysis gas and char-fired high temperature furnace (HITAF). Quarterly progress report No. 7, July--September 1993  

SciTech Connect

A concept for an advanced coal-fired combined-cycle power generating system is currently being developed. The first phase of this three-phase program consists of conducting the necessary research and development to define the system, evaluating the economic and technical feasibility of the concept, and preparing an R&D plan to develop the concept further. Foster Wheeler Development Corporation (FWDC) is leading a team of companies involved in this effort. The power generating system being developed in this project will be an improvement over current coal-fired systems. Goals have been specified that relate to the efficiency, emissions, costs, and general operation of the system. The system proposed to meet these goals is a combined-cycle system where air for a gas turbine is indirectly heated to approximately 1800{degrees}F in furnaces fired with coal-derived fuels and then directly heated in a natural-gas-fired combustor to about 2400{degrees}F. The system is based on a pyrolyzing process that converts the coal into a low-Btu fuel gas and char. The fuel gas is relatively clean, and it is fired to heat tube surfaces that are susceptible to corrosion and problems from ash deposition. In particular, the high-temperature air heater tubes, which will need to be a ceramic material, will be located in a separate furnace or region of a furnace that is exposed to combustion products from the low-Btu fuel gas only. A simplified process flow diagram is shown in Figure 1.

Not Available

1993-11-01T23:59:59.000Z

103

HVAC Commissioning - A Status Report in Taiwan  

E-Print Network (OSTI)

HVAC HVAC CommisioningCommisioning ?? A Status Report in TaiwanA Status Report in Taiwan Dr. K.H. YangDr. K.H. Yang Fellow ASHRAEFellow ASHRAEProfessor, National Sun Professor, National Sun Yat... ,decided to conduct an overall renovation program for the HVAC systems of existing governmental buildings where it is mandatory to adapt BEMS and conducting system commissioning .?This program not only constructs an important step in responding...

Yang, K. H.

2006-01-01T23:59:59.000Z

104

Measuring Advances in HVAC Distribution System Design  

E-Print Network (OSTI)

Advances in HV AC Distribution System Design Ellen FranconiAdvances in HVAC Distribution System Design Ellen Franconisavings result from distribution system design improvements,

Franconi, E.

2011-01-01T23:59:59.000Z

105

Modeling and Identification for HVAC Systems.  

E-Print Network (OSTI)

?? Heating, Ventilation and Air Conditioning (HVAC) systems consist of all the equipment that control the conditions and distribution of indoor air. Indoor air must… (more)

Scotton, Francesco

2012-01-01T23:59:59.000Z

106

ConEd (Gas) - Residential Energy Efficiency Incentives Program | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

ConEd (Gas) - Residential Energy Efficiency Incentives Program ConEd (Gas) - Residential Energy Efficiency Incentives Program ConEd (Gas) - Residential Energy Efficiency Incentives Program < Back Eligibility Installer/Contractor Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heating Home Weatherization Commercial Weatherization Sealing Your Home Ventilation Appliances & Electronics Water Heating Program Info Start Date 7/1/2009 Expiration Date 12/31/2015 State New York Program Type Utility Rebate Program Rebate Amount Furnace: $200 - $600 Water Boiler: $500 or $1,000 Steam Boiler: $500 Boiler Reset Control: $100 Programmable thermostat: $25 Indirect Water Heater: $300 Duct Sealing: $100/hr Air Sealing: $75/hr Con Edison is offering the Residential HVAC Gas Rebate Program. Through this program, incentives are offered on energy efficient heating and

107

HVAC, Water Heating, and Appliances | Department of Energy  

Energy Savers (EERE)

HVAC, Water Heating, and Appliances HVAC, Water Heating, and Appliances How a Small Business is Transforming the Cold Climate Heating Market How a Small Business is Transforming...

108

Energy Department Releases Roadmaps on HVAC Technologies, Water...  

Energy Savers (EERE)

Energy Department Releases Roadmaps on HVAC Technologies, Water Heating, Appliances, and Low-GWP Refrigerants Energy Department Releases Roadmaps on HVAC Technologies, Water...

109

NETL Sorbents Licensed to Help Lower Power Draw of HVAC  

NLE Websites -- All DOE Office Websites (Extended Search)

the energy efficiency of commercial HVAC (heating, ventilation, and air conditioning) systems. HVAC is one of the largest draws of electric power in the United States. In many...

110

DOE Convening Report on Certification of Commercial HVAC and...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Convening Report on Certification of Commercial HVAC and CRE Products DOE Convening Report on Certification of Commercial HVAC and CRE Products This document is the convening...

111

Project examples Install new HVAC, electrical, fire protection,  

E-Print Network (OSTI)

Project examples Install new HVAC, electrical, fire protection, and plumbing systems in Mechanical. · Totransformthisspaceandincreaseaccessibility, anelevatorisrequired.Currently,Blakelydoesnot haveone. Replace HVAC and electrical system

Blanchette, Robert A.

112

Solid State Vehicular Generators and HVAC Development | Department...  

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

Solid State Vehicular Generators and HVAC Development Solid State Vehicular Generators and HVAC Development 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit...

113

Chapter 5: Lighting, HVAC, and Plumbing | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

5: Lighting, HVAC, and Plumbing Chapter 5: Lighting, HVAC, and Plumbing Chapter 5 of the LANL Sustainable Design Guide with guidelines for developing sustainable, healthy,...

114

System-Level Monitoring and Diagnosis of Building HVAC System.  

E-Print Network (OSTI)

??Heating, ventilation, and air conditioning (HVAC) is an indoor environmental technology that is extensively instrumented for large-scale buildings. Among all subsystems of buildings, the HVAC… (more)

Wu, Siyu

2013-01-01T23:59:59.000Z

115

Integration of HVAC System Design with Simplified Duct Distribution...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Integration of HVAC System Design with Simplified Duct Distribution - Building America Top Innovation Integration of HVAC System Design with Simplified Duct Distribution - Building...

116

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

117

Utveckling av provmetodik för HVAC på lastbil; Development of test methodology for climatic testing of truck HVAC on trucks.  

E-Print Network (OSTI)

?? I detta examensarbetet undersöks hur provningen av HVAC på lastbilar skall utföras i klimatvindtunneln CD7 som Scania färdigställer till år 2013. HVAC omfattar kupéuppvärmning,… (more)

Jonsson, Björn-Emil

2011-01-01T23:59:59.000Z

118

Optimization Control Strategies for HVAC Terminal Boxes  

E-Print Network (OSTI)

The HVAC terminal boxes are one of the major building HVAC components. They directly impact the building room comfort conditions and the energy costs. How to operate the box in a highly energy efficient way and maintain the room comfort level...

Zhu, Y.; Batten, T.; Noboa, H.; Claridge, D. E.; Turner, W. D.; Liu, M.; Zhou, J.; Cameron, C.; Keeble, D.; Hirchak, R.

2000-01-01T23:59:59.000Z

119

Ventilation, temperature, and HVAC characteristics in small and medium  

NLE Websites -- All DOE Office Websites (Extended Search)

Ventilation, temperature, and HVAC characteristics in small and medium Ventilation, temperature, and HVAC characteristics in small and medium commercial buildings in California Title Ventilation, temperature, and HVAC characteristics in small and medium commercial buildings in California Publication Type Journal Article Refereed Designation Refereed Year of Publication 2012 Authors Bennett, Deborah H., William J. Fisk, Michael G. Apte, X. Wu, Amber L. Trout, David Faulkner, and Douglas P. Sullivan Journal Indoor Air Volume 22 Issue 4 Pagination 309-20 Abstract This field study of 37 small and medium commercial buildings throughout California obtained information on ventilation rate, temperature, and heating, ventilating, and air-conditioning (HVAC) system characteristics. The study included seven retail establishments; five restaurants; eight offices; two each of gas stations, hair salons, healthcare facilities, grocery stores, dental offices, and fitness centers; and five other buildings. Fourteen (38%) of the buildings either could not or did not provide outdoor air through the HVAC system. The air exchange rate averaged 1.6 (s.d. = 1.7) exchanges per hour and was similar between buildings with and without outdoor air supplied through the HVAC system, indicating that some buildings have significant leakage or ventilation through open windows and doors. Not all buildings had sufficient air exchange to meet ASHRAE 62.1 Standards, including buildings used for fitness centers, hair salons, offices, and retail establishments. The majority of the time, buildings were within the ASHRAE temperature comfort range. Offices were frequently overcooled in the summer. All of the buildings had filters, but over half the buildings had a filter with a minimum efficiency reporting value rating of 4 or lower, which are not very effective for removing fine particles. PRACTICAL IMPLICATIONS: Most U.S. commercial buildings (96%) are small- to medium-sized, using nearly 18% of the country's energy, and sheltering a large population daily. Little is known about the ventilation systems in these buildings. This study found a wide variety of ventilation conditions, with many buildings failing to meet relevant ventilation standards. Regulators may want to consider implementing more complete building inspections at commissioning and point of sale.

120

Commercial Building HVAC: How it Affects People  

NLE Websites -- All DOE Office Websites (Extended Search)

Commercial Building HVAC: How it Affects People Commercial Building HVAC: How it Affects People Speaker(s): William Fisk Date: November 13, 2000 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: David Faulkner Commercial building heating, ventilating, and air conditioning (HVAC) systems are designed primarily to maintain a reasonable level of thermal comfort while limiting first costs and energy consumption. However, research conducted predominately within the last decade suggests that commercial building HVAC significantly influences human outcomes other than thermal comfort, including the health, satisfaction, and work performance of the building's occupants. This presentation will review the relationships of these outcomes with HVAC system type, filtration system efficiency, indoor air temperature, and outside air ventilation rate.

Note: This page contains sample records for the topic "furnace gas hvac" 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

2013 Energy Code Changes That Effect the HVAC  

E-Print Network (OSTI)

2013 Energy Code Changes That Effect the HVAC Industry Tav Commins Mechanical Engineer California Energy Commission #12;HVAC Mandatory Measures For All Newly Installed Residential HVAC Systems (New Watt Draw at .58 W/CFM, or (return duct and filter sizing) MERV 6 Filter #12;Residential HVAC Measures

California at Davis, University of

122

CALIFORNIA ENERGY Large HVAC Field and Baseline Data  

E-Print Network (OSTI)

CALIFORNIA ENERGY COMMISSION Large HVAC Field and Baseline Data Field Data Collection: Site Survey of the Integrated Design of Large Commercial HVAC Systems research project. The reports are a result of funding Design of Large Commercial HVAC Systems Integrated Design of Small Commercial HVAC Systems Integrated

123

Cooling and Dehumidification HVAC Technology for 1990s  

E-Print Network (OSTI)

Desiccant Cooling and Dehumidification HVAC Technology for 1990s HVAC: Heating, Ventilation Research Trusts SERI #12;Challenges Facing HVAC Industry in 1990's * Reduction of CFCs * Indoor air quality to solve the problems of the HVAC industry faced in1990's for space conditioning. SERI #12;l- = m mN a- mg

Oak Ridge National Laboratory

124

Residential HVAC Indoor Air Quality(ASHRAE 62.2)  

E-Print Network (OSTI)

Residential HVAC && Indoor Air Quality(ASHRAE 62.2) Tav Commins #12;Contact Information · Energy construction, Additions /Alterations · Nonresidential and Residential #12;Residential HVAC && Indoor Air Quality(ASHRAE 62.2) ·HVAC EfficiencyHVAC Efficiency ·Quality Installation (HERS Measures) S li b HERS R t

125

NW Natural (Gas) - Business Energy Efficiency Rebate Program | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

NW Natural (Gas) - Business Energy Efficiency Rebate Program NW Natural (Gas) - Business Energy Efficiency Rebate Program NW Natural (Gas) - Business Energy Efficiency Rebate Program < Back Eligibility Commercial Fed. Government Industrial Local Government Nonprofit State Government Savings Category Heating & Cooling Commercial Heating & Cooling Heating Home Weatherization Commercial Weatherization Appliances & Electronics Other Manufacturing Water Heating Maximum Rebate Custom: $1/annual therm saved Program Info Funding Source Energy Trust of Oregon State District of Columbia Program Type Utility Rebate Program Rebate Amount HVAC Unit Heater: $1.50/kBtu Furnace: $3/kBtu/hr Radiant Heating (Non-Modulating): $6.50/kBtu/hr Radiant Heating (Modulating): $10/kBtu/hr Tank Water Heater: 2.50/kBtu/hr Tankless/Instantaneous Water Heater: $2.00/kBtu/hr

126

Cascade Natural Gas - Commercial Efficiency Rebate Program | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Cascade Natural Gas - Commercial Efficiency Rebate Program Cascade Natural Gas - Commercial Efficiency Rebate Program Cascade Natural Gas - Commercial Efficiency Rebate Program < Back Eligibility Commercial Industrial Savings Category Heating & Cooling Commercial Heating & Cooling Heating Home Weatherization Commercial Weatherization Appliances & Electronics Sealing Your Home Design & Remodeling Windows, Doors, & Skylights Water Heating Program Info State District of Columbia Program Type Utility Rebate Program Rebate Amount HVAC Unit Heater: $1.50-$3 / kBtuh input Warm Air Furnace: $3.00 / kBtuh input Direct Fired Radiant Heating: $6.50 / kBtuh input Boiler: $4.00 / kBtuh input Boiler Vent Damper: $1,000 Boiler Steam Trap: $80 DHW Energy Star Tankless Water Heaters: $60 / gpm Domestic Hot Water Tank: $2.50 / kBtuh input

127

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

SciTech Connect

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

128

Salsbury and Diamond: Automated Testing of HVAC Systems for Commissioning -1 -Automated Testing of HVAC Systems for Commissioning  

E-Print Network (OSTI)

and Diamond: Automated Testing of HVAC Systems for Commissioning - 1 - Automated Testing of HVAC Systems This paper describes an approach to the automation of the commissioning of HVAC systems. The approach of many HVAC systems is limited more by poor installation, commissioning, and maintenance than by poor

129

Investigation of IAQ-Relevant Surface Chemistry and Emissions on HVAC Filter Materials  

E-Print Network (OSTI)

VOCs emitted by reactions of HVAC filters with ozone usingand Emissions on HVAC Filter Materials Hugo Destaillats andChemistry and Emissions on HVAC Filter Materials Authors:

Destaillats, Hugo

2010-01-01T23:59:59.000Z

130

Trends in furnace control  

SciTech Connect

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

131

Bus HVAC energy consumption test method based on HVAC unit behavior  

Science Journals Connector (OSTI)

This paper presents a test method for determination of energy consumption of bus HVAC unit. The energy consumption corresponds to a bus engine fuel consumption increase during the HVAC unit operation period. The HVAC unit energy consumption is determined from the unit input power, which is measured under several levels of bus engine speeds and at different levels of testing heat load in the laboratory environment. Since the bus engine fuel consumption is incrementally induced by powering an HVAC unit, the results are subsequently recalculated to the unit fuel consumption under the defined road cycles in terms of standardized diesel engine. The method is likewise applicable either for classic or electric HVAC units with a main consumer (compressor or high voltage alternator) mechanically driven directly from the bus engine and also for electric HVAC units supplied from an alternative electric energy source in case of hybrid or fully electric buses.

M. Hegar; M. Kolda; M. Kopecka; V. Rajtmajer; A. Ryska

2013-01-01T23:59:59.000Z

132

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...

133

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

134

Furnace Standards Enforcement Policy Statement | Department of Energy  

NLE Websites -- All DOE Office Websites (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

135

Utveckling av provmetodik för HVAC på lastbil; Development of test methodology for truck HVAC.  

E-Print Network (OSTI)

?? The issue about how Scania shall perform HVAC tests in the climatic wind tunnel CD7, which Scania is about to complete by year 2013,… (more)

Tedenäs, Jimmy

2011-01-01T23:59:59.000Z

136

Paired Straight Hearth Furnace-Transformational Ironmaking Process  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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...

137

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

138

BS-8: HVAC Modeling and Simulation  

NLE Websites -- All DOE Office Websites (Extended Search)

BS-8: HVAC Modeling and Simulation BS-8: HVAC Modeling and Simulation Speaker(s): Darko Sucic Date: December 5, 2001 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Satkartar K. Kinney Industry Foundation Classes (IFC), an object data model of buildings, are being developed by the International Alliance for Interoperability (IAI) to support data sharing and exchange in the building and construction industry. The IAI, founded in 1995, has published four releases of IFC so far. Several prototype implementations by leading software companies show that commercial IFC software is beginning to meet end user expectations of interoperability in the industry. BS-8 is an LBNL project that started last summer. It is developing the IFC HVAC extension schemata that will extend the IFC object data model and support the exchange of HVAC information

139

Recovery Act-Funded HVAC projects  

Energy.gov (U.S. Department of Energy (DOE))

The U.S. Department of Energy was allocated funding from the American Recovery and Reinvestment Act to conduct research into heating, ventilation, and air conditioning (HVAC) technologies and...

140

Interdisciplinary Innovation and Vision in the HVAC  

E-Print Network (OSTI)

potentials for optimizing costs can be found in the HVAC systems when calculated over the total Life-Cycle-Cost (LCC) of a building incorporating planning through to facility management. This requires an accurate plan specifying an efficient technical...

Hecker, T.

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "furnace gas hvac" 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

HVAC Energy Recovery Design and Economic Evaluation  

E-Print Network (OSTI)

ENRECO has prepared this paper on HVAC energy recovery to provide the engineer with an overview of the design engineering as well as the economic analysis considerations necessary to evaluate the potential benefits of energy recovery....

Kinnier, R. J.

1979-01-01T23:59:59.000Z

142

A PDI for your HVAC System  

Energy.gov (U.S. Department of Energy (DOE))

This presentation was given at the Summer 2012 DOE Building America meeting on July 25, 2012, and addressed the question "HVAC proper installation energy savings: over-promising or under-deliverying?"

143

Modeling and optimization of building HVAC systems.  

E-Print Network (OSTI)

??This thesis presents the development of hybrid modeling methodologies for HVAC component static/steady-state models and dynamic/transient models, and the development and implementation of a model-based… (more)

Jin, Guang Yu.

2012-01-01T23:59:59.000Z

144

Non-Vapor Compression HVAC Technologies Report  

Energy.gov (U.S. Department of Energy (DOE))

While vapor-compression technologies have served heating, ventilation, and air-conditioning (HVAC) needs very effectively, and have been the dominant HVAC technology for close to 100 years, the conventional refrigerants used in vapor-compression equipment contribute to global climate change when released to the atmosphere. The Building Technologies Office is evaluating low-global warming potential (GWP) alternatives to vapor-compression technologies.

145

E-Print Network 3.0 - arc furnaces Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

of Solar Energy for the Production of Fullerenes and Summary: with the Odeillo (finance) solar furnace facilities, can be used to vaporize graphite in inert gas atmosphere......

146

Cogeneration from glass furnace waste heat recovery  

SciTech Connect

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

147

Building Technologies Office: HVAC Optimized Heat Exchangers Research  

NLE Websites -- All DOE Office Websites (Extended Search)

Optimized Heat Optimized Heat Exchangers Research Project to someone by E-mail Share Building Technologies Office: HVAC Optimized Heat Exchangers Research Project on Facebook Tweet about Building Technologies Office: HVAC Optimized Heat Exchangers Research Project on Twitter Bookmark Building Technologies Office: HVAC Optimized Heat Exchangers Research Project on Google Bookmark Building Technologies Office: HVAC Optimized Heat Exchangers Research Project on Delicious Rank Building Technologies Office: HVAC Optimized Heat Exchangers Research Project on Digg Find More places to share Building Technologies Office: HVAC Optimized Heat Exchangers Research Project on AddThis.com... About Take Action to Save Energy Partner with DOE Activities Appliances Research Building Envelope Research

148

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

149

Simple Maintenance Saves Costly Furnace Repair/Replacement | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

150

Building Technologies Office: Recovery Act-Funded HVAC Research Projects  

NLE Websites -- All DOE Office Websites (Extended Search)

HVAC Research Projects to someone by E-mail HVAC Research Projects to someone by E-mail Share Building Technologies Office: Recovery Act-Funded HVAC Research Projects on Facebook Tweet about Building Technologies Office: Recovery Act-Funded HVAC Research Projects on Twitter Bookmark Building Technologies Office: Recovery Act-Funded HVAC Research Projects on Google Bookmark Building Technologies Office: Recovery Act-Funded HVAC Research Projects on Delicious Rank Building Technologies Office: Recovery Act-Funded HVAC Research Projects on Digg Find More places to share Building Technologies Office: Recovery Act-Funded HVAC Research Projects on AddThis.com... About Take Action to Save Energy Partner with DOE Activities Appliances Research Building Envelope Research Windows, Skylights, & Doors Research Space Heating & Cooling Research

151

Building Technologies Office: HVAC and Water Heater Field Tests Research  

NLE Websites -- All DOE Office Websites (Extended Search)

HVAC and Water Heater HVAC and Water Heater Field Tests Research Project to someone by E-mail Share Building Technologies Office: HVAC and Water Heater Field Tests Research Project on Facebook Tweet about Building Technologies Office: HVAC and Water Heater Field Tests Research Project on Twitter Bookmark Building Technologies Office: HVAC and Water Heater Field Tests Research Project on Google Bookmark Building Technologies Office: HVAC and Water Heater Field Tests Research Project on Delicious Rank Building Technologies Office: HVAC and Water Heater Field Tests Research Project on Digg Find More places to share Building Technologies Office: HVAC and Water Heater Field Tests Research Project on AddThis.com... About Take Action to Save Energy Partner with DOE Activities Appliances Research

152

Theoretical Minimum Energy Use of a Building HVAC System  

E-Print Network (OSTI)

This paper investigates the theoretical minimum energy use required by the HVAC system in a particular code compliant office building. This limit might be viewed as the "Carnot Efficiency" for HVAC system. It assumes that all ventilation and air...

Tanskyi, O.

2011-01-01T23:59:59.000Z

153

EECBG Success Story: HVAC Upgrade Saving Money, Protecting History...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

HVAC Upgrade Saving Money, Protecting History EECBG Success Story: HVAC Upgrade Saving Money, Protecting History November 2, 2010 - 5:37pm Addthis A new heating and cooling system...

154

System Optimization - The Global Approach to HVAC Control  

E-Print Network (OSTI)

System Optimization is a new approach to HVAC control as implemented by Energy Management Control Systems. System Optimization is defined as electronic building control strategies which treat a building's HVAC components as a complete energy...

Thielman, D. E.

1984-01-01T23:59:59.000Z

155

Practical Approach in Design of HVAC Systems Utilizing Geothermal Energy  

Science Journals Connector (OSTI)

Geothermal is the Earth’s thermal energy. In recent years geothermal energy has been utilized for generation of electricity, heating and air conditioning (HVAC). Geothermal HVAC systems are cost effective, energy

M. Fathizadeh; D. Seims

2014-01-01T23:59:59.000Z

156

Review of modeling methods for HVAC systems  

Science Journals Connector (OSTI)

Abstract This work presents the literature review of the methods used to model the heating, ventilation, and air conditioning (HVAC) systems. The model development is necessary for the study of the energy consumption of HVAC systems. Models are also required to simulate the different supervisory and local loop control strategies to improve the energy consumption efficiency. HVAC systems have complex structures consisting of heat and mass transfer equipment such as chiller, boiler, heating/cooling coils, and supply air ducts. HVAC systems also consist of several sensors and controllers for regulating the controllable variables such as zone temperature, supply air temperature, supply air fan speed, duct static pressure, and chilled water temperature at their set-points. To predict the energy consumption by the HVAC systems accurately, one needs to model the individual components either from the measured data or based on the knowledge of the underlying physical phenomenon. This results in three broad classes of the models known as data driven, physics based, and grey box models. In this paper, major data driven, physics based, and grey box modeling techniques reported in the recent literature are reviewed.

Abdul Afram; Farrokh Janabi-Sharifi

2014-01-01T23:59:59.000Z

157

The Impact of Forced Air System Blowers on Furnace Performance and Utility  

NLE Websites -- All DOE Office Websites (Extended Search)

The Impact of Forced Air System Blowers on Furnace Performance and Utility The Impact of Forced Air System Blowers on Furnace Performance and Utility Loads Speaker(s): Bert Phillips Date: November 7, 2003 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: James Lutz Bert Phillips will talk about the impact of forced air system blower performance on furnace or heating performance and on utility loads, and what can be done to reduce blower power requirements. He will also briefly discuss a ground source heat pump monitoring study that he just finished. Mr. Phillips is a registered Professional Engineer in three Canadian provinces and part owner of UNIES Ltd., an engineering firm in Winnipeg, Manitoba (60 miles straight north of the North Dakota/Minnesota border). He does research and HVAC system design and investigates

158

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

SciTech Connect

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

159

Implementation and main results Ecient Management of HVAC Systems  

E-Print Network (OSTI)

water to remove heat from the air in the building. In HVAC system equipped with chillers, the electrical #12;Motivation Implementation and main results HVAC Systems Multiple-chiller systems Heating, Ventilation and Air-Conditioning System Heating, Ventilation and Air Conditioning Systems (HVAC) represents

Schenato, Luca

160

Atmospheric Environment 41 (2007) 31513160 Ozone removal by HVAC filters  

E-Print Network (OSTI)

Atmospheric Environment 41 (2007) 3151­3160 Ozone removal by HVAC filters P. Zhao, J.A. Siegel�, R May 2006; accepted 14 June 2006 Abstract Residential and commercial HVAC filters that have been loaded of the relative importance of HVAC filters as a removal mechanism for ozone in residential and commercial

Siegel, Jeffrey

Note: This page contains sample records for the topic "furnace gas hvac" 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

MATERIALS AND INFORMATION FLOWS FOR HVAC DUCTWORK FABRICATION AND SITE  

E-Print Network (OSTI)

MATERIALS AND INFORMATION FLOWS FOR HVAC DUCTWORK FABRICATION AND SITE INSTALLATION Matt Holzemer,1, and air-conditioning (HVAC) systems requires a set of complex activities and handoffs between multiple architecture-, engineering-, and construction practitioners. This paper highlights one part of the HVAC

Tommelein, Iris D.

162

ThermoSense: Occupancy Thermal Based Sensing for HVAC Control  

E-Print Network (OSTI)

ThermoSense: Occupancy Thermal Based Sensing for HVAC Control Alex Beltran Elect. Eng. & Comp Occupancy Sensing, Thermal Sensing, HVAC Control 1. INTRODUCTION From 1980 to 2010, energy in the United, November 13-14 2013, Rome, Italy. Copyright 2013 ACM 978-1-4503-2431-1/13/11 ...$15.00. (HVAC) consumed 42

Cerpa, Alberto E.

163

Department of Mechanical Engineering Spring 2012 HVAC Filter Sensor -Global  

E-Print Network (OSTI)

PENNSTATE Department of Mechanical Engineering Spring 2012 HVAC Filter Sensor - Global Overview The purpose of this project is to develop a heating, ventilation, and air conditioning (HVAC) monitoring a residential, forced flow, multi-zone HVAC filter needs to be replaced, and then alerts the users

Demirel, Melik C.

164

Modeling Building Thermal Response to HVAC Zoning Virginia Smith  

E-Print Network (OSTI)

Modeling Building Thermal Response to HVAC Zoning Virginia Smith Department of Computer Science HVAC systems account for 38% of building energy usage. Studies have indicated at least 5-15% waste due to unoccu- pied spaces being conditioned. Our goal is to minimize this waste by retrofitting HVAC systems

Whitehouse, Kamin

165

SMUD's HVAC Programs Ravi Patel-Program Planning  

E-Print Network (OSTI)

1 SMUD's HVAC Programs 5-7-13 Ravi Patel- Program Planning Bruce Baccei- R&D #12;SMUD's Residential contractors trained and BPI certified ­ Majority were pushing only HVAC; now driving the HPP · Program encourages more HVAC replacements to occur through HPP ­ Move away from stand alone programs ­ Start

California at Davis, University of

166

Lessons Learned During HVAC Installation Dept. of Computer Science  

E-Print Network (OSTI)

Lessons Learned During HVAC Installation Ian Watson AI-CBR Dept. of Computer Science University of HVAC equipment. It has been developed as an adjunct to an existing system that uses case-based reasoning to reuse previous HVAC installation specifications and designs. The system described lets

Watson, Ian

167

An update on acoustics designs for HVAC (Engineering) K. Marriott  

E-Print Network (OSTI)

An update on acoustics designs for HVAC (Engineering) K. Marriott IOA, 29a Ashburton Road, Croydon and Air Conditioning (HVAC) engineer is to engineer ways for keeping these factors under control the HVAC engineer's environmental requirements while minimizing noise generated in the process considering

Paris-Sud XI, Université de

168

Utilizing Passive Ventilation to Complement HVAC Systems in Enclosed Buildings  

E-Print Network (OSTI)

Utilizing Passive Ventilation to Complement HVAC Systems in Enclosed Buildings Tom Rogg REU Student to assist HVAC has the potential to significantly reduce life cycle cost and energy consumption and electrical system that will tie thermostats to controlled valves in the actual HVAC system. Based on results

Mountziaris, T. J.

169

Modeling and simulation of HVAC Results in EnergyPlus  

E-Print Network (OSTI)

LBNL-5564E Modeling and simulation of HVAC Results in EnergyPlus Mangesh Basarkar, Xiufeng Pang;MODELING AND SIMULATION OF HVAC FAULTS IN ENERGYPLUS Mangesh Basarkar, Xiufeng Pang, Liping Wang, Philip not capture the significant impact of installation, operational and degradation HVAC system faults on actual

170

Monitoring-based HVAC Commissioning of an Existing Office  

E-Print Network (OSTI)

LBNL-5940E Monitoring-based HVAC Commissioning of an Existing Office Building for Energy Efficiency thereof or The Regents of the University of California. #12;1 Monitoring-based HVAC Commissioning@lbl.gov, Tel: 1-510-486-4921 Abstract The performance of Heating, Ventilation and Air Conditioning (HVAC

171

Handover Performance of HVAC Duct Based Indoor Wireless Networks  

E-Print Network (OSTI)

Handover Performance of HVAC Duct Based Indoor Wireless Networks A. E. Xhafa, P. Sonthikorn, and O in indoor wireless net- works (IWN) that use heating, ventilation, and air conditioning (HVAC) ducts.e., new call blocking and handover dropping probabilities, of an IWN that uses HVAC ducts are up to 6

Stancil, Daniel D.

172

Implementation of a Scenario-based MPC for HVAC Systems  

E-Print Network (OSTI)

Implementation of a Scenario-based MPC for HVAC Systems: an Experimental Case Study Alessandra, Ventilation and Air Conditioning (HVAC) systems play a fundamental role in maintaining acceptable thermal energy savings potential. Developing effective MPC-based control strategies for HVAC systems

Johansson, Karl Henrik

173

Continued on next page A letter explaining the 2005 HVAC  

E-Print Network (OSTI)

Continued on next page A letter explaining the 2005 HVAC Change-out to consumers is available this bulletin, or downloaded from the 2005 HVAC Change out Information website at: www.energy.ca.gov/title24 duct sealing requirements for HVAC change-outs in existing homes become effective October 1, 2005

174

Deposition of Biological Aerosols on HVAC Heat Exchangers  

E-Print Network (OSTI)

LBNL-47669 Deposition of Biological Aerosols on HVAC Heat Exchangers Jeffrey Siegel and Iain Walker of Biological Aerosols on HVAC Heat Exchangers Jeffrey A. Siegel Iain S. Walker, Ph.D. ASHRAE Student Member that are found in commercial and residential HVAC systems of 1 - 6 m/s (200 - 1200 ft/min), particle diameters

175

Tematiche di ricerca Controllo di sistemi HVAC&R  

E-Print Network (OSTI)

Tematiche di ricerca Controllo di sistemi HVAC&R Controllo di processo per l'industria dei;Tematiche di ricerca Controllo di sistemi HVAC&R Controllo di processo per l'industria dei semiconduttori controllo di sistemi HVAC&R 2 Controllo di processo per l'industria dei semiconduttori 3 Problemi di

Schenato, Luca

176

Long Range Passive UHF RFID System Using HVAC Ducts  

E-Print Network (OSTI)

INVITED P A P E R Long Range Passive UHF RFID System Using HVAC Ducts To provide a potential communications channel, HVAC ducts can function as electromagnetic waveguides; a 30-m read range has been-conditioning (HVAC) ducts as a potential communication channel between passive ultrahigh-frequency (UHF) radio

Hochberg, Michael

177

Sectoral trends in global energy use and greenhouse gas emissions  

E-Print Network (OSTI)

factors for production of coal products -- patent fuel, cokeoven coke,coke oven gas, blast furnace gas and briquettes (BKB) --

2006-01-01T23:59:59.000Z

178

Chapter 5: Lighting, HVAC, and Plumbing  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

: Lighting, : Lighting, HVAC, and Plumbing High-Performance Engineering Design Lighting System Design Mechanical System Design Central Plant Systems Plumbing and Water Use Building Control Systems Electrical Power Systems Metering LANL | Chapter 5 High-Performance Engineering Design Lighting, HVAC, and Plumbing By now, the building envelope serves multiple roles. It protects the occupants from changing weather condi- tions and it plays a key part in meeting the occupants' comfort needs. The heating, ventilating, air-conditioning, and lighting (HVAC&L) systems complement the archi- tectural design, govern the building's operation and maintenance costs, and shape the building's long-term environmental impact. The architectural design maximizes the potential for a high-performance building, but it is the

179

A PDI for your HVAC System  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

8/3/2012 Technical Approach Develop a PDI for HVAC PDI focus is on Inspecting Installation - a $10 Chinese sweatshop t-shirt gets a QA/QC sticker, why not a $10k HVAC system? Develop & require diagnostics that confirm good installations: - Air flow, duct leakage, refrigerant charge, delivered temperatures, system pressures, filter requirements, fan power, noise - On board diagnostics (OBD) for flow, pressures, fan power, charge Make it a warranty requirement, code requirement, permit requirement, etc. Recommended Guidance Develop the PDI checklist and label (include target and system test results) - External Tests: duct leaks - Internal Tests: OBD for system pressures, air flow, charge, fan power - Labels: Certify tight equipment

180

Microsoft Word - ACEEE_06_FurnaceBlower_Paper413_lbl.doc  

NLE Websites -- All DOE Office Websites (Extended Search)

BPM Motors in Residential Gas Furnaces: What are the Savings? BPM Motors in Residential Gas Furnaces: What are the Savings? James Lutz, Victor Franco, Alex Lekov, and Gabrielle Wong-Parodi Lawrence Berkeley National Laboratory, Berkeley, California ABSTRACT Residential gas furnaces contain blowers to distribute warm air. Currently, furnace blowers use either a Permanent Split Capacitor (PSC) or a Brushless Permanent Magnet (BPM) motor. Blowers account for the majority of furnace electricity consumption. Therefore, accurate determination of the blower electricity consumption is important for understanding electricity consumption of furnaces. The electricity consumption of blower motors depends on the static pressure across the blower. This paper examines both types of blower motors in non-condensing non-weatherized

Note: This page contains sample records for the topic "furnace gas hvac" 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

Exergy-based analysis and efficiency evaluation for an aluminum melting furnace in a die-casting plant  

Science Journals Connector (OSTI)

The efficiency of a natural gas-fired aluminum melting furnace in a die-casting plant is examined using energy and exergy methods, to improve understanding of the burner system in the furnace and so that potential improvements can be identified. Such ... Keywords: aluminum, die-casting, efficiency, energy, exergy, melting furnace

Marc A. Rosen; Dennis L. Lee

2009-02-01T23:59:59.000Z

182

NYSEG (Gas) - Commercial and Industrial Efficiency Program | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Commercial and Industrial Efficiency Program Commercial and Industrial Efficiency Program NYSEG (Gas) - Commercial and Industrial Efficiency Program < Back Eligibility Agricultural Commercial Industrial Institutional Local Government Multi-Family Residential Nonprofit State Government Tribal Government Savings Category Heating & Cooling Commercial Heating & Cooling Heating Other Maximum Rebate No maximum per customer rebate; however, NYSEG/RG&E reserve the right to cap the rebate to any one customer. Program Info State New York Program Type Utility Rebate Program Rebate Amount HVAC: Prescriptive incentives vary Condensing Boilers: $1000-$6000 Hydronic Boilers: $500-$4000 Steam Boilers: $200 Furnaces: $100 Programmable Thermostats: $25 Boiler Reset Controls: $150 Provider NYSEG/RGE NYSEG and RG&E offer rebates to non-residential customers installing energy

183

Research & Development Roadmap: Emerging HVAC Technologies  

Energy.gov (U.S. Department of Energy (DOE))

The Research and Development (R&D) Roadmap for Emerging Heating, Ventilation, and Air-Conditioning (HVAC) Technologies provides recommendations to the Building Technologies Office (BTO) on R&D activities to pursue that will aid in achieving BTO’s energy savings goals.

184

August 20, 2014 meeting with DOE representatives regarding the remand of the DOE Direct Final Rule as it relates to efficiency standards for non-weatherized gas furnaces  

Energy.gov (U.S. Department of Energy (DOE))

This memorandum provides an overview of the meeting between representatives of the American Public Gas Association (APGA) and of the Department of Energy (DOE).  Present for APGA were Dave Schryver...

185

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

186

University of North Carolina at Charlotte Design and Construction Manual Section 2, Division 23 HVAC  

E-Print Network (OSTI)

­ HVAC SECTION 2 DIVISION 23 HVAC #12;University of North Carolina at Charlotte Design and Construction Manual Section 2, Division 23 ­ HVAC DIVISION 23 - HVAC Note: This is a guide for Designers only 23 0510 - MECHANICAL GENERAL - HVAC PART 1 - GENERAL 1.1 MECHANICAL DESIGNER: A. Design

Xie,Jiang (Linda)

187

Reduce Air Infiltration in Furnaces  

Energy.gov (U.S. Department of Energy (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.

188

Sandia National Laboratories: Solar Furnace  

NLE Websites -- All DOE Office Websites (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...

189

Blast furnace taphole drill  

SciTech Connect

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

190

Precision control of high temperature furnaces using an auxiliary power supply and charged practice current flow  

DOE Patents (OSTI)

Two power supplies are combined to control a furnace. A main power supply heats the furnace in the traditional manner, while the power from the auxiliary supply is introduced as a current flow through charged particles existing due to ionized gas or thermionic emission. The main power supply provides the bulk heating power and the auxiliary supply provides a precise and fast power source such that the precision of the total power delivered to the furnace is improved.

Pollock, George G. (San Ramon, CA)

1997-01-01T23:59:59.000Z

191

Precision control of high temperature furnaces using an auxiliary power supply and charged particle current flow  

DOE Patents (OSTI)

Two power supplies are combined to control a furnace. A main power supply heats the furnace in the traditional manner, while the power from the auxiliary supply is introduced as a current flow through charged particles existing due to ionized gas or thermionic emission. The main power supply provides the bulk heating power and the auxiliary supply provides a precise and fast power source such that the precision of the total power delivered to the furnace is improved. 5 figs.

Pollock, G.G.

1997-01-28T23:59:59.000Z

192

Environmental assessment for proposed energy conservation standards for two types of consumer products; refrigerators, refrigerator-freezers, and freezers; small gas furnaces; and a proposed No standard standard for television sets  

SciTech Connect

This environmental assessment (EA) evaluates the environmental impacts resulting from new or amended energy-efficiency standard for refrigerators, refrigerator-freezers, freezers, small gas furnaces, and television sets as mandated by the National Appliance Energy Conservation Act of 1987. A complete description of the Engineering and Economic Analysis of the proposed standards may be found elsewhere in the Technical Support Document (TSD). Four of the 14 scenarios for product design changes described in the Engineering Analysis of the TSD are chosen for environmental assessment based on their relative importance as design measures. Values for energy savings that result from product design changes are also taken from the TSD. The two main environmental concerns addressed are emissions from fossil fuel-fired electricity generation and the chlorofluorcarbons used in the production of rigid insulation foam. Each of the 12 design options for refrigerators and freezers result in decreased electricity use and and, therefore, reduced power plant emissions. Design changes that call for additional rigid foam insulation per appliance are of interest because they affect chlorofluorocarbon consumption. There is strong evidence that chlorofluorocarbons migrate to the stratosphere, break down, and catalyze the destruction of stratospheric ozone.

Not Available

1988-01-01T23:59:59.000Z

193

Laboratory measurement of secondary pollutant yields from ozone reaction with HVAC filters.  

E-Print Network (OSTI)

Ozone Reaction with HVAC Filters Hugo Destaillats, WenhaoOzone Reaction with HVAC Filters Hugo Destaillats 1,3,* ,Ozone Reaction with HVAC Filters Hugo Destaillats 1,3,* ,

Destaillats, Hugo

2012-01-01T23:59:59.000Z

194

HVAC Efficiency Controls Could Mean Significant Savings | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

HVAC Efficiency Controls Could Mean Significant Savings HVAC Efficiency Controls Could Mean Significant Savings HVAC Efficiency Controls Could Mean Significant Savings April 27, 2012 - 11:58am Addthis HVAC Efficiency Controls Could Mean Significant Savings April Saylor April Saylor Former Digital Outreach Strategist, Office of Public Affairs What does this mean for me? Commercial building owners could save an average 38% on their heating & cooling bills just by installing a few new controls onto their HVAC systems. According to a new report from Pacific Northwest National Lab, commercial building owners could save an average 38 percent on their heating and cooling bills just by installing a few new controls onto their HVAC systems. These findings mean significant potential savings for building owners who use commercial rooftop systems - but there's just one problem: the

195

Applications of HVAC System Utilizing Building Thermal Mass in Japan  

NLE Websites -- All DOE Office Websites (Extended Search)

Applications of HVAC System Utilizing Building Thermal Mass in Japan Applications of HVAC System Utilizing Building Thermal Mass in Japan Speaker(s): Katsuhiro Miura Date: January 27, 2012 - 10:00am Location: 90-3122 Seminar Host/Point of Contact: Michael Wetter Buildings have a large thermal capacity and it affects much on building thermal load for the HVAC system. The thermal mass can be utilized also to control the thermal load by storing thermal energy before HVAC operation. There are two ways to store thermal energy. One is by operating the HVAC system and the other is by natural ventilation, mainly at night. The latter could be combined with daily HVAC operation as a hybrid ventilation. Thermal mass storage is useful to decrease the hourly peak load and the daily thermal load and can be used for both cooling and heating purpose.

196

Building Technologies Office: HVAC Radial Air Bearing Heat Exchanger  

NLE Websites -- All DOE Office Websites (Extended Search)

Radial Air Bearing Radial Air Bearing Heat Exchanger Research Project to someone by E-mail Share Building Technologies Office: HVAC Radial Air Bearing Heat Exchanger Research Project on Facebook Tweet about Building Technologies Office: HVAC Radial Air Bearing Heat Exchanger Research Project on Twitter Bookmark Building Technologies Office: HVAC Radial Air Bearing Heat Exchanger Research Project on Google Bookmark Building Technologies Office: HVAC Radial Air Bearing Heat Exchanger Research Project on Delicious Rank Building Technologies Office: HVAC Radial Air Bearing Heat Exchanger Research Project on Digg Find More places to share Building Technologies Office: HVAC Radial Air Bearing Heat Exchanger Research Project on AddThis.com... About Take Action to Save Energy Partner with DOE

197

Pitfalls in Building and HVAC Systems  

E-Print Network (OSTI)

the summer savings. ? Consider all forms of savings, not just en ergy. Opportunities are often missed be cause only energy savings are consideted. For example, the installation of extetior wall insulation or aluminum thermopane win dows result in a...PITFALLS IN BUILDING AND HVAC SYSTEMS B. N. Gidwani, P.E. Roy F. Weston, Inc. West Chester, Pennsylvania ABSTRACT The purpose of an energy audit is to identify and analyze areas of energy consumption and to pro pose methods of conservation...

Gidwani, B. N.

198

Fabrication of A Quantum Well Based System for Truck HVAC  

Energy.gov (U.S. Department of Energy (DOE))

Discusses performance differences between conventional modules and quantum well modules and details a conventional HZ-14 device, using bulk bismuth-telluride advantageous for truck HVAC applications.

199

Fault Detection and Diagnosis in Building HVAC Systems.  

E-Print Network (OSTI)

??Building HVAC systems account for more than 30% of annual energy consumption in United States. However, it has become apparent that only in a small… (more)

Najafi, Massieh

2010-01-01T23:59:59.000Z

200

The impact of filter loading on residential hvac performance.  

E-Print Network (OSTI)

??Buildings are the primary user of energy in the USA. Within homes, the heating, ventilation, and air condition (HVAC) system is the largest energy consumer.… (more)

Kruger, Abraham J.

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "furnace gas hvac" 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

Comparison of Building Energy Modeling Programs: HVAC Systems  

E-Print Network (OSTI)

or FAU with no control), supply water temperature, pressureunder the same control The supply air temperature and supplyHVAC control strategies of supply air temperature, supply

Zhou, Xin

2014-01-01T23:59:59.000Z

202

HVAC Design Strategy for a Hot-Humid Production Builder, Houston, Texas (Fact Sheet)  

SciTech Connect

BSC worked directly with the David Weekley Homes - Houston division to redesign three floor plans in order to locate the HVAC system in conditioned space. The purpose of this project is to develop a cost effective design for moving the HVAC system into conditioned space. In addition, BSC conducted energy analysis to calculate the most economical strategy for increasing the energy performance of future production houses. This is in preparation for the upcoming code changes in 2015. The builder wishes to develop an upgrade package that will allow for a seamless transition to the new code mandate. The following research questions were addressed by this research project: 1. What is the most cost effective, best performing and most easily replicable method of locating ducts inside conditioned space for a hot-humid production home builder that constructs one and two story single family detached residences? 2. What is a cost effective and practical method of achieving 50% source energy savings vs. the 2006 International Energy Conservation Code for a hot-humid production builder? 3. How accurate are the pre-construction whole house cost estimates compared to confirmed post construction actual cost? BSC and the builder developed a duct design strategy that employs a system of dropped ceilings and attic coffers for moving the ductwork from the vented attic to conditioned space. The furnace has been moved to either a mechanical closet in the conditioned living space or a coffered space in the attic.

Not Available

2014-03-01T23:59:59.000Z

203

Residential HVAC Data, Assumptions and Methodology for End-Use Forecasting with EPRI-REEPS 2.1  

E-Print Network (OSTI)

room, and electric (air source) heat pump. Gas furnaces weresplit-system air-source electric heat pumps. (5) As of Jan.ground source heat pumps, evaporative cooling, ductiess air

Johnson, F.X.

2010-01-01T23:59:59.000Z

204

Improving the Efficiency of Light-Duty Vehicle HVAC Systems using...  

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

Light-Duty Vehicle HVAC Systems using Zonal Thermoelectric Devices and Comfort Modeling Improving the Efficiency of Light-Duty Vehicle HVAC Systems using Zonal Thermoelectric...

205

A Scenario-based Predictive Control Approach to Building HVAC Management Systems  

E-Print Network (OSTI)

A Scenario-based Predictive Control Approach to Building HVAC Management Systems Alessandra Parisio and Air Conditioning (HVAC) systems while minimizing the overall energy use. The strategy uses

Johansson, Karl Henrik

206

SIMULATION AND EXPERIMENTAL VALIDATION OF AIRBORNE AND STRUCTURE-BORNE NOISE TRANSMISSION IN HVAC PLENUMS.  

E-Print Network (OSTI)

??This research demonstrates the usage of numerical acoustics to model sound and vibrational energy propagation in HVAC ducts and plenums. Noise and vibration in HVAC… (more)

Ramalingam, Srinivasan

2012-01-01T23:59:59.000Z

207

Characterization of HVAC operation uncertainty in EnergyPlus AHU modules.  

E-Print Network (OSTI)

??This study addresses 5 uncertainties that exist in the operation of HVAC systems, which will presumably affect the actual energy consumption of the HVAC system… (more)

Sui, Di

2014-01-01T23:59:59.000Z

208

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

209

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

210

Laboratory Evaluation of Residential Furnace BlowerPerformance  

SciTech Connect

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

211

RG&E (Gas) - Commercial and Industrial Efficiency Program | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Commercial and Industrial Efficiency Program Commercial and Industrial Efficiency Program RG&E (Gas) - Commercial and Industrial Efficiency Program < Back Eligibility Agricultural Commercial Industrial Institutional Local Government Multi-Family Residential Nonprofit State Government Tribal Government Savings Category Heating & Cooling Commercial Heating & Cooling Heating Other Maximum Rebate No maximum per customer rebate; however, NYSEG/RG&E reserve the right to cap the rebate to any one customer. Program Info State New York Program Type Utility Rebate Program Rebate Amount HVAC: Prescriptive incentives vary Condensing Boilers: $1000-$6000 Hydronic Boilers: $500-$4000 Steam Boilers: $200 Furnaces: $100 Programmable Thermostats: $25 Boiler Reset Controls: $150 Provider NYSEG/RGE NYSEG and RG&E offer rebates to non-residential customers installing energy

212

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))"

213

Energy efficient HVAC system features thermal storage and heat recovery  

SciTech Connect

This article describes a HVAC system designed to efficiently condition a medical center. The topics of the article include energy efficient design of the HVAC system, incentive rebate program by the local utility, indoor air quality, innovative design features, operations and maintenance, payback and life cycle cost analysis results, and energy consumption.

Bard, E.M. (Bard, Rao + Athanas Consulting Engineering Inc., Boston, MA (United States))

1994-03-01T23:59:59.000Z

214

Occupancy Based Demand Response HVAC Control Strategy Varick L. Erickson  

E-Print Network (OSTI)

Occupancy Based Demand Response HVAC Control Strategy Varick L. Erickson University of California an efficient demand response HVAC control strategy, actual room usage must be considered. Temperature and CO2 are used for simulations but not for predictive demand response strategies. In this paper, we develop

Cerpa, Alberto E.

215

HVAC & Building Management Control System Energy Efficiency Replacements  

SciTech Connect

The project objective was the replacement of an aging, un-repairable HVAC system which has grown inefficient and a huge energy consumer with low energy and efficient HVAC units, and installation of energy efficient building control technologies at City's YMCA Community Center.

Hernandez, Adriana

2012-09-21T23:59:59.000Z

216

Coke quality for blast furnaces with coal-dust fuel  

SciTech Connect

Recently, plans have been developed for the introduction of pulverized coal injection (PCI) at various Russian metallurgical enterprises. The main incentive for switching to PCI is the recent price rises for Russian natural gas. The paper discusses the quality of coke for PCI into blast furnaces.

Y.A. Zolotukhin; N.S. Andreichikov [Eastern Coal-Chemistry Institute, Yekaterinburg (Russian Federation)

2009-07-01T23:59:59.000Z

217

Columbia Water and Light - HVAC and Lighting Efficiency Rebates |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Columbia Water and Light - HVAC and Lighting Efficiency Rebates Columbia Water and Light - HVAC and Lighting Efficiency Rebates Columbia Water and Light - HVAC and Lighting Efficiency Rebates < Back Eligibility Commercial Industrial Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Heat Pumps Appliances & Electronics Commercial Lighting Lighting Maximum Rebate Lighting: 50% of invoiced cost up to $22,500 Program Info State Missouri Program Type Utility Rebate Program Rebate Amount HVAC Replacements: $570 - $3,770 Lighting: $300/kW reduction or half of project cost Provider Columbia Water and Light Columbia Water and Light (CWL) offers rebates to its commercial and industrial customers for the purchase of high efficiency HVAC installations and efficient lighting. Incentives for certain measures are based upon the

218

Building Energy Software Tools Directory: HVAC 1 Toolkit  

NLE Websites -- All DOE Office Websites (Extended Search)

HVAC 1 Toolkit HVAC 1 Toolkit HVAC 1 Toolkit logo. The Toolkit for Primary HVAC System Energy Calculations is a collection of thirty-eight separate subroutines and corresponding documentation that describes algorithms for predicting the performance of HVAC components. The Toolkit documentation includes thorough descriptions of the component models and solution algorithms, detailed information on the structure of the individual FORTRAN 77 routines, as well as illustrative examples of system simulations with the Toolkit routines. The Toolkit serves two purposes: modules for large-scale simulation and stand-alone component performance prediction. The Toolkit components can also be used to calculate the energy performance of a component with a dedicated driver program to provide the necessary information flow to the Toolkit routines.

219

A Fault Detection and Diagnosis Method for HVAC Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

A Fault Detection and Diagnosis Method for HVAC Systems A Fault Detection and Diagnosis Method for HVAC Systems Speaker(s): Peng Xu Date: December 2, 2002 - 12:00pm Location: Bldg. 90 There is a growing consensus that most buildings do not perform as well as intended and that faults in HVAC systems are widespread in commercial buildings. An automated fault detection and diagnosis tool for HVAC systems is being developed, based on an integrated, life-cycle, approach to commissioning and performance monitoring. The tool uses component-level HVAC equipment models implemented in the SPARK equation-based simulation environment. The models are configured using design information and component manufacturers' data and then fine-tuned to match the actual performance of the equipment by using data measured during functional tests

220

An Integrated Model of Coal/Coke Combustion in a Blast Furnace  

Science Journals Connector (OSTI)

A three?dimensional integrated mathematical model of the combustion of pulverized coal and coke is developed. The model is applied to the region of lance?blowpipe?tuyere?raceway?coke bed to simulate the operation of pulverized coal injection in an ironmaking blast furnace. The model integrates two parts: pulverized coal combustion model in the blowpipe?tuyere?raceway?coke bed and the coke combustion model in the coke bed. The model is validated against the measurements in terms of coal burnout and gas composition respectively. The comprehensive in?furnace phenomena are simulated in the raceway and coke bed in terms of flow temperature gas composition and coal burning characteristics. In addition underlying mechanisms for the in?furnace phenomena are analyzed. The model provides a cost?effective tool for understanding and optimizing the in?furnace flow?thermo?chemical characteristics of the PCI process in full?scale blast furnaces.

Y. S. Shen; B. Y. Guo; A. B. Yu; P. Austin; P. Zulli

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "furnace gas hvac" 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

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.

222

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

223

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

224

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

225

Best practices guide for residential HVAC Retrofits  

SciTech Connect

This best practices guide for residential HVAC system retrofits is aimed at contractors who want guidance on delivering energy efficient, cost effective and innovative products. It has been developed around the idea of having packages of changes to the building HVAC system and building envelope that are climate and house construction dependent. These packages include materials, procedures and equipment and are designed to remove some of the guesswork from a builder, contractor, installer or homeowner decisions about how best to carry out HVAC changes. The packages are not meant to be taken as rigid requirements--instead they are systems engineered guidelines that form the basis for energy efficient retrofits. Similar approaches have been taken previously for new construction to develop extremely energy efficient homes that are comfortable safe and durable, and often cost less than standard construction. This is best epitomized by the Building America program whose partners have built thousands of residences throughout the U.S. using these principles. The differences between retrofitting and new construction tend to limit the changes one can make to a building, so these packages rely on relatively simple and non-intrusive technologies and techniques. The retrofits also focus on changes to a building that will give many years of service to the occupants. Another key aspect of these best practices is that we need to know how a house is working so that we know what parts have the potential for improvement. To do this we have put together a set of diagnostic tools that combine physical measurements and checklists/questionnaires. The measured test results, observations and homeowner answers to questions are used to direct us towards the best retrofits applicable to each individual house. The retrofits will depend on the current condition of the building envelope and HVAC system, the local climate, the construction methods used for the house, and the presence of various energy saving systems (e.g., a Heat Recovery Ventilator) and/or materials. This is just like a doctor referring a patient for blood tests or x-rays before actually performing surgery. This way the doctor can be sure that he does the right thing. To take this analogy further--we can borrow from the medical profession and say that the first thought when retrofitting a house is to do no harm, i.e., do not make changes that could make the house worse to live in.

Walker, Iain S.

2003-08-11T23:59:59.000Z

226

VARIABLE SPEED INTEGRATED INTELLIGENT HVAC BLOWER  

SciTech Connect

This comprehensive topical report discusses the key findings in the development of an advanced blower for HVAC applications. The benefits of rearward inclined blades over that of traditional forward inclined blades is well documented, and several prototype wheels are demonstrated in various housings. A comparison of retrofitted blowers to that of three typical units from the industry is presented. The design and modification of the blower housing is addressed and the impact of size limitations on static efficiency is discussed. The roadmap to rearward-inclined wheel technology insertion is presented and typical static efficiency gains are documented.

Herman Wiegman; Charlie Stephens; Xiaoyue Liu; Ralph Carl; Sunny Zhuang; Paul Szczesny; Kamron Wright

2003-09-23T23:59:59.000Z

227

OBSERVE: Occupancy-Based System for Efficient Reduction of HVAC Energy  

E-Print Network (OSTI)

OBSERVE: Occupancy-Based System for Efficient Reduction of HVAC Energy Varick L. Erickson, Miguel Á & control General Terms Algorithms, Machine Learning, Measurement Keywords Occupancy, HVAC, Ventilation for heating, ventilation, and air-conditioning (HVAC) systems[2]. Studies suggest that 15% to 25% of HVAC

Carreira-Perpiñán, Miguel Á.

228

Duty-Cycling Buildings Aggressively: The Next Frontier in HVAC Control  

E-Print Network (OSTI)

Duty-Cycling Buildings Aggressively: The Next Frontier in HVAC Control Yuvraj Agarwal, Bharathan the dominant energy consumer is the HVAC system. Despite this fact, in most buildings the HVAC system is run sensing to guide the operation of a building HVAC system. We show how we can enable aggressive duty

Simunic, Tajana

229

Best Practices for Energy Efficient Cleanrooms Efficient HVAC Systems: Variable-Speed-Drive Chillers  

E-Print Network (OSTI)

LBNL-58636 Best Practices for Energy Efficient Cleanrooms Efficient HVAC Systems: Variable Efficient Cleanrooms Efficient HVAC Water Systems: Variable-Speed-Drive Chillers Tengfang Xu Contents HVAC.................................................................................................................................... 6 #12;HVAC Water Systems Variable-Speed-Drive Chillers Summary Cleanroom energy benchmarking data

230

Evaluation of HVAC filters as a sampling mechanism for indoor microbial communities  

E-Print Network (OSTI)

Evaluation of HVAC filters as a sampling mechanism for indoor microbial communities Federico Noris Fungi Microbial community HVAC filter Settled dust Air a b s t r a c t HVAC filters are in place of bacterial and fungal concentrations and communities in HVAC filter dust and other sampling locations

Siegel, Jeffrey

231

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

SciTech Connect

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

232

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

SciTech Connect

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

233

Evaluation of Retrofit Variable-Speed Furnace Fan Motors  

SciTech Connect

In conjunction with the New York State Energy Research and Development Authority (NYSERDA) and Proctor Engineering Group, Ltd. (PEG), the Consortium for Advanced Residential Buildings (CARB) has evaluated the Concept 3 (tm) replacement motors for residential furnaces. These brushless, permanent magnet (BPM) motors can use much less electricity than their PSC (permanent split capacitor) predecessors. This evaluation focuses on existing homes in the heating-dominated climate of upstate New York with the goals of characterizing field performance and cost-effectiveness. The results of this study are intended to be useful to home performance contractors, HVAC contractors, and home efficiency program stakeholders. The project includes eight homes in and near Syracuse, NY. Tests and monitoring was performed both before and after fan motors were replaced. Average fan power reductions were approximately 126 Watts during heating and 220 Watts during cooling operation. Over the course of entire heating and cooling seasons, these translated into average electric energy savings of 163 kWh. Average cost savings were $20 per year. Homes where the fan was used outside of heating and cooling mode saved an additional $42 per year on average. Results indicate that BPM replacement motors will be most cost-effective in HVAC systems with longer run times and relatively low duct static pressures. More dramatic savings are possible if occupants use the fan-only setting when there is no thermal load. There are millions of cold-climate, U.S. homes that meet these criteria, but the savings in most homes tested in this study were modest.

Aldrich, R.; Williamson, J.

2014-01-01T23:59:59.000Z

234

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

235

The Impact of Uncertain Physical Parameters on HVAC Demand Response  

SciTech Connect

HVAC units are currently one of the major resources providing demand response (DR) in residential buildings. Models of HVAC with DR function can improve understanding of its impact on power system operations and facilitate the deployment of DR technologies. This paper investigates the importance of various physical parameters and their distributions to the HVAC response to DR signals, which is a key step to the construction of HVAC models for a population of units with insufficient data. These parameters include the size of floors, insulation efficiency, the amount of solid mass in the house, and efficiency of the HVAC units. These parameters are usually assumed to follow Gaussian or Uniform distributions. We study the effect of uncertainty in the chosen parameter distributions on the aggregate HVAC response to DR signals, during transient phase and in steady state. We use a quasi-Monte Carlo sampling method with linear regression and Prony analysis to evaluate sensitivity of DR output to the uncertainty in the distribution parameters. The significance ranking on the uncertainty sources is given for future guidance in the modeling of HVAC demand response.

Sun, Yannan; Elizondo, Marcelo A.; Lu, Shuai; Fuller, Jason C.

2014-03-01T23:59:59.000Z

236

Index to Evaluate Energy Efficiency of the Building HVAC System  

E-Print Network (OSTI)

1An Index to Evaluate Energy Efficiency of the Entire Building HVAC System Presented by Dr. Claridge Date: 09/15/2014 ESL-IC-14-09-15 Proceedings of the 14th International Conference for Enhanced Building Operations, Beijing, China, September 14..., Beijing, China, September 14-17, 2014 3• Why we need the Energy/Load Ratio 1. Building 2. HVAC Systems 3. Common Index • Building sector consumes 40% of total energy usage in US (Residential buildings – 22%, Commercial building – 19%) • HVAC systems...

Wang, L.; Wang, L.; Claridge,D.

2014-01-01T23:59:59.000Z

237

Heat recovery and the economizer for HVAC systems  

SciTech Connect

This articles examines why a combined heat reclaim/economizer system with priority to heat reclaim operation is most likely to result in the least annual total HVAC energy. PC-based, hour-by-hour simulation programs evaluate annual HVAC energy requirements when using combined operation of heat reclaim and economizer cycle, while giving priority to operation of either one. These simulation programs also enable the design engineer to select the most viable heat reclaim and/or economizer system for any given type of HVAC system serving the building internal load level, building geographical location and other building/system variables.

Anantapantula, V.S. (Emerson Electric Co., St. Louis, MO (United States). Alco Controls Div.); Sauer, H.J. Jr. (Univ. of Missouri, Rolla, MO (United States))

1994-11-01T23:59:59.000Z

238

Cement advanced furnace and process  

SciTech Connect

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

239

Unusual HVAC challenges require innovative solutions  

SciTech Connect

There were many reasons behind Motorola`s decision to build the first 225,000 sq ft of a planned one million sq ft manufacturing facility in Chihuahua, Mexico. Among these were the availability of skilled labor in the area, lower construction costs, some export tax advantages, and the close proximity to the US border. The new facility is made up of a variety of functional areas that together create an impressively efficient plant. Phase 1 construction included a large manufacturing floor, shipping and receiving areas, a bulk storage facility, and a large office area with a view of the factory floor. The structure also houses a retail store where Motorola consumer products are sold, a conference and banquet center, a commercial kitchen, and dining facilities for 750. The design cooling load is 750 tons; the heating load is 4.5 million Btuh. The paper discusses the challenging location, the HVAC system, and the future expansion planned.

Jardine, G.M.; Gwin, O.D. [Heery International, Inc., Atlanta, GA (United States)

1998-02-01T23:59:59.000Z

240

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

Note: This page contains sample records for the topic "furnace gas hvac" 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

Thermal model of solar absorption HVAC systems  

SciTech Connect

This paper presents a thermal model that describes the performance of solar absorption HVAC systems. The model considers the collector array, the building cooling and heating loads, the absorption chiller and the high temperature storage. Heat losses from the storage tank and piping are included in the model. All of the results presented in the paper are for an array of flat plate solar collectors with black chrome (selective surface) absorber plates. The collector efficiency equation is used to calculate the useful heat output from the array. The storage is modeled as a non-stratified tank with polyurethane foam insulation. The system is assumed to operate continuously providing air conditioning during the cooling season, space heating during the winter and hot water throughout the year. The amount of heat required to drive the chiller is determined from the coefficient of performance of the absorption cycle. Results are presented for a typical COP of 0.7. The cooling capacity of the chiller is a function of storage (generator) temperature. The nominal value is 190 F (88 C) and the range of values considered is 180 F (82 C) to 210 F (99 C). Typical building cooling and heating loads are determined as a function of ambient conditions. Performance results are presented for Sacramento, CA and Washington, D.C. The model described in the paper makes use of National Solar Radiation Data Base (NSRDB) data and results are presented for these two locations. The uncertainties in the NSRDB are estimated to be in a range of 6% to 9%. This is a significant improvement over previously available data. The model makes it possible to predict the performance of solar HVAC systems and calculate quantities such as solar fraction, storage temperature, heat losses and parasitic power for every hour of the period for which data are available.

Bergquam, J.B.; Brezner, J.M. [California State Univ., Sacramento, CA (United States). Dept. of Mechanical Engineering; [Bergquam Energy Systems, Sacramento, CA (United States)

1995-11-01T23:59:59.000Z

242

Furnaces and Boilers | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

243

Breakthrough Furnace Can Cut Solar Industry Costs  

NLE Websites -- All DOE Office Websites (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....

244

Connexus Energy - Residential Efficient HVAC Rebate Program | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Connexus Energy - Residential Efficient HVAC Rebate Program Connexus Energy - Residential Efficient HVAC Rebate Program Connexus Energy - Residential Efficient HVAC Rebate Program < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Heat Pumps Program Info Expiration Date 12/31/2013 State Minnesota Program Type Utility Rebate Program Rebate Amount Air Source Heat Pumps: $480 - $630 Ductless Heat Pump: $150 Geothermal Heat Pump: $200/ton Provider Connexus Energy Connexus Energy offers rebates for residential customers to improve the energy efficiency of homes. Rebates are available for air source heat pumps, ductless heat pumps and ground-source heat pumps. Equipment must meet all efficiency standards listed on the web site, and must be installed by a certified HVAC contractor. Contact Connexus Energy for other program

245

A Web Based CBR System for HVAC Sales Support  

Science Journals Connector (OSTI)

This paper describes the implementation of a CBR system to support HVAC sales staff operating in remote locations. The ... the world wide web and uses the new standard of XML as a communications protocol between....

Dan Gardingen; Ian Watson

1999-01-01T23:59:59.000Z

246

A Quasi-Dynamic HVAC and Building Simulation Methodology  

E-Print Network (OSTI)

This thesis introduces a quasi-dynamic building simulation methodology which complements existing building simulators by allowing transient models of HVAC (heating, ventilating and air-conditioning) systems to be created in an analogous way...

Davis, Clinton Paul

2012-07-16T23:59:59.000Z

247

Review of Residential Low-Load HVAC Systems  

SciTech Connect

In support of the U.S. Department of Energy’s (DOE’s) Building America Program, Pacific Northwest National Laboratory (PNNL) conducted an investigation to inventory commercially available HVAC technologies that are being installed in low-load homes. The first step in this investigation was to conduct a review of published literature to identify low-load HVAC technologies available in the United States and abroad, and document the findings of existing case studies that have evaluated the performance of the identified technologies. This report presents the findings of the literature review, identifies gaps in the literature or technical understanding that must be addressed before low-load HVAC technologies can be fully evaluated, and introduces PNNL’s planned research and analysis for this project to address identified gaps and potential future work on residential low-load HVAC systems.

Brown, Scott A.; Thornton, Brian; Widder, Sarah H.

2013-09-01T23:59:59.000Z

248

Building HVAC Control System Interaction Issues: Two Case Studies  

E-Print Network (OSTI)

Direct Digital Control (DDC) allows HVAC equipment to be controlled at an upper level (supervisory control) through commands from a central system, or at a lower-level (local-loop control) by local controllers. The various levels of equipment...

Chen, Q.; Deng, S.; Toole, C.; Xu, C.

2007-01-01T23:59:59.000Z

249

Columbia Water and Light- Residential HVAC Rebate Program  

Energy.gov (U.S. Department of Energy (DOE))

Columbia Water and Light (CWL) provides an HVAC incentive for residential customers that are replacing an older heating and cooling system. Customers should submit the mechanical permit from a...

250

Industrial HVAC Air-to-Air Energy Recovery Retrofit Economics  

E-Print Network (OSTI)

Retrofitting air-to-air energy recovery equipment is relatively simply to design and easy to install. Additionally, HVAC energy recovery is almost risk free when compared to process retrofit. Life cycle cost analysis is the best way to illustrate...

Graham, E. L.

1980-01-01T23:59:59.000Z

251

EECBG Success Story: HVAC Upgrade Saving Money, Protecting History  

Energy.gov (U.S. Department of Energy (DOE))

With financial support from a $250,000 PA Conservation Works! grant – funded through the federal Energy Efficiency and Conservation Block Grant program and the Recovery Act – CCHS purchased a new Desert-Aire HVAC system. Learn more.

252

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

253

Software-as-a-Service Optimised Scheduling of a Solar-Assisted HVAC System with Thermal Storage  

E-Print Network (OSTI)

Optimised Scheduling of a Solar-Assisted HVAC System withA. Mammoli. Modeling of a solar-assisted HVAC system withOPTIMISED SCHEDULING OF A SOLAR-ASSISTED HVAC SYSTEM WITH

Mammoli, Andrea

2014-01-01T23:59:59.000Z

254

Comfort by Design: An Introduction to HVAC's Variable Refrigerant Flow (VRF) Technology  

E-Print Network (OSTI)

Comfort by Design An Introduction to HVAC’s Variable Refrigerant Flow (VRF) Technology Keith Reihl kreihl@hvac.mea.com ESL-KT-14-11-13 CATEE 2014: Clean Air Through Efficiency Conference, Dallas, Texas Nov. 18-20 HVAC Market Overview 0% 27% 9% 5% 4... Through Efficiency Conference, Dallas, Texas Nov. 18-20 How LOUD is a traditional HVAC unit? 33 dB(A) Library 50 dB(A) Refrigerator 60 dB(A) Conversation 78 dB(A) Vacuum 25 dB(A) Recording Studio 65-75 dB(A) Residential 3-ton HVAC Unit How Q IET are VRF...

Reihl,K.

2014-01-01T23:59:59.000Z

255

Section 38 - HVAC (Heating, Ventilation, Air Conditioning)  

Science Journals Connector (OSTI)

The term HVAC is an acronym for Heating, Ventilation (and) Air Conditioning, the industry term for any of various efforts to control conditions in a building or other enclosed area to improve comfort and efficiency. A closely related section is Refrigeration, which follows this one. Some contemporary HVAC techniques have ancient roots. Early forms of central heating and solar home heating were in use in Rome in the first century A.D. The earliest use of glass in windows (as opposed to a covering of wood, cloth, or hide, or simply an opening) is also attributed to the Romans at this same time. The first known use of solar-oriented building design in North America dates back to about the year 1050; i.e., the cliff dwellings built by the Anasazi (Ancient Pueblo) people of the Colorado Plateau area. Geothermal district heating was employed as early as the 1300s, in the Auvergne region of southern France. The foundation for modern central heating was established in the 1700s, first in England and then in France. The 1800s saw significant advances in the use of water heaters, especially the first automatic storage water heater (Edwin Ruud, 1889) and the first commercial solar water heater (Clarence Kemp, 1891). In comparison with heating, cooling technology was late in developing. The first successful method of producing ice occurred in 1851, and it was not until 1902 that Willis Haviland Carrier designed the first industrial air-conditioning system. His Carrier Air Conditioning Corporation would go on to develop air-conditioning systems for stores and theaters (1924) and for residential buildings (1928). Carrier remains the global leader in air conditioner production. The first air-conditioned automobile was produced by Packard in 1939. Recent entries in this section emphasize the use of alternative energy sources in heating and cooling, such as solar, photovoltaic, geothermal, and fuel cells. These advances include the ground-source heat pump, the Trombe wall, the heat pipe, and the PV/thermal hybrid system.

Cutler J. Cleveland; Christopher Morris

2014-01-01T23:59:59.000Z

256

Intermountain Gas Company (IGC) - Gas Heating Rebate Program | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Intermountain Gas Company (IGC) - Gas Heating Rebate Program Intermountain Gas Company (IGC) - Gas Heating Rebate Program Intermountain Gas Company (IGC) - Gas Heating Rebate Program < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heating Program Info State Idaho Program Type Utility Rebate Program Rebate Amount Furnace: $200/unit Provider Customer Service The Intermountain Gas Company's (IGC) Gas Heating Rebate Program offers customers a $200 per unit rebate when they convert to a high efficiency natural gas furnace that replaces a heating system using another energy source. New furnaces must meet a minimum AFUE efficiency rating of 90%, and the home must have been built at least three years prior to the furnace conversion to qualify for the rebate. Visit IGC's program web site for more

257

Report on HVAC option selections for a relocatable classroom energy and indoor environmental quality field study  

SciTech Connect

It is commonly assumed that efforts to simultaneously develop energy efficient building technologies and to improve indoor environmental quality (IEQ) are unfeasible. The primary reason for this is that IEQ improvements often require additional ventilation that is costly from an energy standpoint. It is currently thought that health and productivity in work and learning environments requires adequate, if not superior, IEQ. Despite common assumptions, opportunities do exist to design building systems that provide improvements in both energy efficiency and IEQ. This report outlines the selection of a heating, ventilation, and air conditioning (HVAC) system to be used in demonstrating such an opportunity in a field study using relocatable school classrooms. Standard classrooms use a common wall mounted heat pump HVAC system. After reviewing alternative systems, a wall-mounting indirect/direct evaporative cooling system with an integral hydronic gas heating is selected. The anticipated advantages of this system include continuous ventilation of 100 percent outside air at or above minimum standards, projected cooling energy reductions of about 70 percent, inexpensive gas heating, improved airborne particle filtration, and reduced peak load electricity use. Potential disadvantages include restricted climate regions and possible increases in indoor relative humidity levels under some conditions.

Apte, Michael G.; Delp, Woody W.; Diamond, Richard C.; Hodgson, Alfred T.; Kumar, Satish; Rainer, Leo I.; Shendell, Derek G.; Sullivan, Doug P.; Fisk, William J.

2001-10-11T23:59:59.000Z

258

HVAC, Water Heater and Appliance R&D - 2014 BTO Peer Review ...  

Energy Savers (EERE)

HVAC, Water Heater and Appliance R&D - 2014 BTO Peer Review HVAC, Water Heater and Appliance R&D - 2014 BTO Peer Review Presenter: Tony Bouza, U.S. Department of Energy This...

259

Airborne Particulate Matter in HVAC Systems and its Influence on Indoor Air Quality  

E-Print Network (OSTI)

This paper first reviews the mechanisms governing movement of PMs in HVAC systems. Then, the basic equations governing PM deposition in ducts are introduced and investigations on airborne PMs distribution in HVAC systems are reviewed. The influence...

Fu, Z.; Li, N.; Wang, H.

2006-01-01T23:59:59.000Z

260

Building America Whole-House Solutions for New Homes: HVAC Design...  

Energy Savers (EERE)

HVAC Design Strategy for a Hot-Humid Production Builder Building America Whole-House Solutions for New Homes: HVAC Design Strategy for a Hot-Humid Production Builder In this...

Note: This page contains sample records for the topic "furnace gas hvac" 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

CoolCab Thermal Load Reduction Project: CoolCalc HVAC Tool Development...  

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

Thermal Load Reduction Project: CoolCalc HVAC Tool Development CoolCab Thermal Load Reduction Project: CoolCalc HVAC Tool Development 2010 DOE Vehicle Technologies and Hydrogen...

262

Direct Digital Control- A Tool for Energy Management of HVAC Systems  

E-Print Network (OSTI)

Direct digital control (DDC) applied to heating, ventilating, and air-conditioning (HVAC) systems corrects many of the deficiencies of conventional automatic temperature control systems. By applying new control sequences, DDC optimizes HVAC energy...

Swanson, K.

263

TITLE: HVAC TESTING & BALANCING FOR MAJOR AND MINOR PROJECTS OBJECTIVE AND  

E-Print Network (OSTI)

TITLE: HVAC TESTING & BALANCING FOR MAJOR AND MINOR PROJECTS OBJECTIVE AND PURPOSE: To provide an independent test & balance for the adjustment of all HVAC systems in all major projects and minor projects

Fernandez, Eduardo

264

Uncertainties in Achieving Energy Savings from HVAC Maintenance Measures in the Field  

E-Print Network (OSTI)

Uncertainties in Achieving Energy Savings from HVAC Maintenance Measures in the Field Kristin utilities across the nation to include HVAC maintenance measures in energy efficiency programs Maintenance measures have a significant potential for energy savings in residential and commercial unitary

California at Davis, University of

265

Building energy modeling programs comparison Research on HVAC systems  

NLE Websites -- All DOE Office Websites (Extended Search)

energy modeling programs comparison Research on HVAC systems energy modeling programs comparison Research on HVAC systems simulation part Title Building energy modeling programs comparison Research on HVAC systems simulation part Publication Type Journal Year of Publication 2013 Authors Zhou, Xin, Da Yan, Tianzhen Hong, and Dandan Zhu Keywords Building energy modeling programs, comparison tests, HVAC system simulation, theory analysis Abstract Building energy simulation programs are effective tools for the evaluation of building energy saving and optimization of design. The fact that large discrepancies exist in simulated results when different BEMPs are used to model the same building has caused wide concern. Urgent research is needed to identify the main elements that contribute towards the simulation results. This technical report summarizes methodologies, processes, and the main assumptions of three building energy modeling programs (BEMPs) for HVAC calculations: EnergyPlus, DeST, and DOE-2.1E, and test cases are designed to analyze the calculation process in detail. This will help users to get a better understanding of BEMPs and the research methodology of building simulation. This will also help build a foundation for building energy code development and energy labeling programs.

266

Issue #3: HVAC Proper Installation Energy Savings: Over-Promising or Under-Delivering?  

Office of Energy Efficiency and Renewable Energy (EERE)

What energy savings are realistically achievable by following quality installation standards for installation, operation, and maintenance of residential HVAC?

267

STANDARD OPERATING PROCEDURE FOR TUBE "A1-GateOx" furnace in TRL.  

E-Print Network (OSTI)

the generation of water vapors by Pyrogenic reaction. The gas control is provided by the Argus 581 Gas ControlOx" is an Atmospheric furnace designed to grow thermal SiO2 in the temperature range of 800- 1050C, on Silicon wafers up

Reif, Rafael

268

STANDARD OPERATING PROCEDURE FOR TUBE "B2-Ox-Alloy" furnace in TRL.  

E-Print Network (OSTI)

the generation of water vapors by Pyrogenic reaction. The gas control is provided by the Argus 581 Gas Control_Alloy" is an Atmospheric furnace designed to grow thermal SiO2 in the temperature range of 800- 1050C, on Silicon wafers up

Reif, Rafael

269

STANDARD OPERATING PROCEDURE FOR TUBE "B1-Au" furnace in TRL.  

E-Print Network (OSTI)

the generation of water vapors by Pyrogenic reaction. The gas control is provided by the Argus 581 Gas Control" is an Atmospheric furnace designed to grow thermal SiO2 in the temperature range of 800- 1050C, on Silicon wafers up

Reif, Rafael

270

STANDARD OPERATING PROCEDURE FOR TUBE "A2-WetOxBond" furnace in TRL.  

E-Print Network (OSTI)

the generation of water vapors by Pyrogenic reaction. The gas control is provided by the Argus 581 Gas ControlOxBond" is an Atmospheric furnace designed to grow thermal SiO2 in the temperature range of 800- 1050C, on Silicon wafers up

Reif, Rafael

271

Sentinel: Occupancy Based HVAC Actuation using Existing WiFi Infrastructure within Commercial Buildings  

E-Print Network (OSTI)

Sentinel: Occupancy Based HVAC Actuation using Existing WiFi Infrastructure within Commercial.agarwal@cs.cmu.edu ABSTRACT Commercial buildings contribute to 19% of the primary energy consumption in the US, with HVAC systems accounting for 39.6% of this usage. To reduce HVAC energy use, prior studies have pro- posed using

Gupta, Rajesh

272

Automated Testing of HVAC Systems for Commissioning Tim Salsbury and Rick Diamond  

E-Print Network (OSTI)

Automated Testing of HVAC Systems for Commissioning Tim Salsbury and Rick Diamond Lawrence Berkeley of the commissioning of HVAC systems. The approach is based on software that generates a sequence of test signals for new and retrofit projects. Introduction The performance of many HVAC systems is limited more by poor

Diamond, Richard

273

Co-simulation for performance prediction of integrated building and HVAC systems -An analysis of solution  

E-Print Network (OSTI)

Co-simulation for performance prediction of integrated building and HVAC systems - An analysis performance simulation of buildings and heating, ventilation and air- conditioning (HVAC) systems can help, heating, ventilation and air-conditioning (HVAC) systems are responsible for 10%-60% of the total building

274

Randomized Model Predictive Control for HVAC Systems Alessandra Parisio, Damiano Varagnolo, Daniel Risberg,  

E-Print Network (OSTI)

Randomized Model Predictive Control for HVAC Systems Alessandra Parisio, Damiano Varagnolo, Daniel Conditioning (HVAC) sys- tems play a fundamental role in maintaining acceptable ther- mal comfort and Indoor. A possible solu- tion is to develop effective control strategies for HVAC sys- tems, but this is complicated

Johansson, Karl Henrik

275

Theoretical Estimates of HVAC Duct Channel Capacity for High-Speed Internet Access  

E-Print Network (OSTI)

Theoretical Estimates of HVAC Duct Channel Capacity for High-Speed Internet Access Ariton E. Xhafa-conditioning (HVAC) ducts based on multi-carrier transmission that uses M-QAM mod- ulation and measured channel- flections in HVAC ducts). Our work also shows that data rates in excess of 300 Mbps are possible over

Stancil, Daniel D.

276

Modeling Building Thermal Response to HVAC Virginia Smith, Tamim Sookoor, and Kamin Whitehouse  

E-Print Network (OSTI)

Modeling Building Thermal Response to HVAC Zoning Virginia Smith, Tamim Sookoor, and Kamin,sookoor,whitehouse}@virginia.edu Abstract. HVAC systems account for 38% of building energy usage. Studies have indicated at least 5 HVAC systems to enable room-level zoning where each room is conditioned in- dividually based on its

Whitehouse, Kamin

277

A LIBRARY OF HVAC COMPONENT MODELS FOR USE IN AUTOMATED1 DIAGNOSTICS2  

E-Print Network (OSTI)

A LIBRARY OF HVAC COMPONENT MODELS FOR USE IN AUTOMATED1 DIAGNOSTICS2 3 4 Peng Xu, Philip Haves HVAC system (air handling units and air distribution systems). The models are used to predict of automatic documentation methods in the library. INTRODUCTION The increasing complexity of building HVAC

278

Multi-carrier Signal Transmission through HVAC Ducts: Experimental Results for Channel Capacity  

E-Print Network (OSTI)

Multi-carrier Signal Transmission through HVAC Ducts: Experimental Results for Channel Capacity, for the first time, experimental results on channel capacity of heating, ventilation, and air-conditioning (HVAC through a building HVAC duct system demonstrate the ability to transmit with a spectral efficiency of 3

Stancil, Daniel D.

279

Seamless Handover in Buildings Using HVAC Ducts: A New System Architecture  

E-Print Network (OSTI)

Seamless Handover in Buildings Using HVAC Ducts: A New System Architecture Ariton E. Xhafa, Paisarn-- In this paper, we present an innovative solution to the handover problem in multi-story buildings using HVAC of the indoor wireless networks that use the heating, ventilation, and air conditioning (HVAC) ducts

Stancil, Daniel D.

280

Comparison of HVAC filter test methods for particle removal efficiency Brent Stephens1,*  

E-Print Network (OSTI)

Comparison of HVAC filter test methods for particle removal efficiency Brent Stephens1,* , Jeffrey Introduction The use of HVAC filters in buildings is one strategy to reduce occupant exposure to particulate matter. However, HVAC filters are typically tested only in laboratory settings and little is known about

Siegel, Jeffrey

Note: This page contains sample records for the topic "furnace gas hvac" 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

BLACK-BOX MODELLING OF HVAC SYSTEM: IMPROVING THE PERFORMANCES OF NEURAL NETWORKS  

E-Print Network (OSTI)

BLACK-BOX MODELLING OF HVAC SYSTEM: IMPROVING THE PERFORMANCES OF NEURAL NETWORKS Eric FOCK Ile de La Réunion - FRANCE ABSTRACT This paper deals with neural networks modelling of HVAC systems of HVAC system can be modelled using manufacturer design data presented as derived performance maps

Boyer, Edmond

282

Conventional Facilities Chapter 6: HVAC Systems 6-1 NSLS-II Preliminary Design Report  

E-Print Network (OSTI)

Conventional Facilities Chapter 6: HVAC Systems 6-1 NSLS-II Preliminary Design Report 6 MECHANICAL ­ HVAC SYSTEMS 6.1 Design Criteria 6.1.1 Codes and Standards The latest edition of the codes, standards have adequate capacity and head, no chilled water pumps #12;Conventional Facilities Chapter 6: HVAC

Ohta, Shigemi

283

RF propagation in an HVAC duct system: impulse response characteristics of the channel  

E-Print Network (OSTI)

RF propagation in an HVAC duct system: impulse response characteristics of the channel Pavel V, the heating, ventilation, and air conditioning (HVAC) duct system in buildings is a complex network of hollow at RF and microwave frequencies of com- mon interest. HVAC ducts can be used as a wireless communication

Stancil, Daniel D.

284

VOLUME 16, NUMBER 3 HVAC&R RESEARCH MAY 2010 The Effects of Filtration on  

E-Print Network (OSTI)

VOLUME 16, NUMBER 3 HVAC&R RESEARCH MAY 2010 273 The Effects of Filtration on Pressure Drop and Energy Consumption in Residential HVAC Systems (RP-1299) Brent Stephens Atila Novoselac, PhD Jeffrey A of high-efficiency HVAC filters is a common strategy to control exposure to airborne particulate matter

Siegel, Jeffrey

285

EVALUATION OF EMERGING DIAGNOSTIC TOOLS FOR COMMERCIAL HVAC SYSTEMS Hannah Friedman Mary Ann Piette  

E-Print Network (OSTI)

EVALUATION OF EMERGING DIAGNOSTIC TOOLS FOR COMMERCIAL HVAC SYSTEMS Hannah Friedman Mary Ann Piette for commercial HVAC systems. We present a brief description of the diagnostic tools, and then focus on evaluating, ventilating, and air-conditioning (HVAC) systems (Gregerson, 1997, Claridge et al., 2000). If these energy

286

Fuzzy Rule Reduction and Tuning of Fuzzy Logic Controllers for a HVAC System  

E-Print Network (OSTI)

Fuzzy Rule Reduction and Tuning of Fuzzy Logic Controllers for a HVAC System R. Alcal´a, J. Alcal, Ventilating and Air Conditioning (HVAC) Systems are equip- ments usually implemented for maintaining satisfactory comfort conditions in build- ings. The design of Fuzzy Logic Controllers (FLCs) for HVAC Systems

Granada, Universidad de

287

RoomZoner: Occupancy-based Room-Level Zoning of a Centralized HVAC System  

E-Print Network (OSTI)

RoomZoner: Occupancy-based Room-Level Zoning of a Centralized HVAC System Tamim Sookoor & Kamin. In this paper we present a CPS that enables a centralized Heating, Ventila- tion, and Air Conditioning (HVAC application due to residential HVAC systems ac- counting for over 15% of all U.S. energy usage, making it one

Whitehouse, Kamin

288

Tile of the document: HVAC system component-based modeling and implementation  

E-Print Network (OSTI)

1 Abstract Tile of the document: HVAC system component-based modeling and implementation Karam the foundation for modeling components that are used in HVAC systems (heating, ventilation, and air conditioning such functionalities. #12;2 HVAC system component-based modeling and implementation By Karam H. Rajab Scholarly

Austin, Mark

289

Comparison of dust from HVAC filters, indoor surfaces, and indoor air Federico Noris*  

E-Print Network (OSTI)

Comparison of dust from HVAC filters, indoor surfaces, and indoor air Federico Noris* , Kerry A and Environmental Engineering * Corresponding email: Fedenoris@mail.utexas.edu SUMMARY HVAC filters are long heavy metal (Pb, Cd and As) concentrations. HVAC filter microbial concentrations appear to be consistent

Siegel, Jeffrey

290

A CONTROLLER FOR HVAC SYSTEMS WITH FAULT DETECTION CAPABILITIES BASED ON SIMULATION MODELS  

E-Print Network (OSTI)

1 A CONTROLLER FOR HVAC SYSTEMS WITH FAULT DETECTION CAPABILITIES BASED ON SIMULATION MODELS T. I describes a control scheme with fault detection capabilities suitable for application to HVAC systems as a reference of correct operation. Faults that occur in the HVAC system under control cause the PI

291

Xcel Energy (Gas)- Residential Conservation Programs  

Energy.gov (U.S. Department of Energy (DOE))

Xcel Energy offers its Wisconsin residential natural gas customers rebates for high efficiency heating equipment. Currently, rebates are available for tankless and storage water heaters, furnaces,...

292

Commissioning and Performance Diagnostics for HVAC Control Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Commissioning and Performance Diagnostics for HVAC Control Systems Commissioning and Performance Diagnostics for HVAC Control Systems Speaker(s): Ashish Singhal Date: December 20, 2006 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Philip Haves The presentation will focus on practical aspects of commissioning control loops in commercial HVAC systems and evaluating their routine performance. Simple and theoretically sound methods for diagnosing control performance will be presented that detect serious performance issues associated with control loops in modern buildings. The discussion will center on a new control loop commissioning tool that helps field personnel to quickly test, tune and troubleshoot control loops. In addition to the active tests for commissioning control loops, a suite of diagnostic algorithms are used in a

293

Optimized HVAC Management Service to Enhance Demand Response  

NLE Websites -- All DOE Office Websites (Extended Search)

Optimized HVAC Management Service to Enhance Demand Response Optimized HVAC Management Service to Enhance Demand Response Speaker(s): John Steinberg Date: August 18, 2011 - 12:00pm Location: 90-4133 Seminar Host/Point of Contact: Janie Page Many utilities are investing vast sums deploying smart meters to customers, some of whom remain stubbornly opposed to those deployments, in large part because they remain unmoved by the claimed benefits. EcoFactor has developed a thermostat management service that delivers (and quantifies) significant energy savings for consumers and a number of additional benefits to other players in the energy value chain. It does so without relying on consumers to modify behavior, study energy information displays, or even pay attention to their energy use. EcoFactor also significantly boosts DR yield while it increases occupant comfort. It can identify HVAC

294

Energy-Efficient Building HVAC Control Using Hybrid System LBMPC  

E-Print Network (OSTI)

Improving the energy-efficiency of heating, ventilation, and air-conditioning (HVAC) systems has the potential to realize large economic and societal benefits. This paper concerns the system identification of a hybrid system model of a building-wide HVAC system and its subsequent control using a hybrid system formulation of learning-based model predictive control (LBMPC). Here, the learning refers to model updates to the hybrid system model that incorporate the heating effects due to occupancy, solar effects, outside air temperature (OAT), and equipment, in addition to integrator dynamics inherently present in low-level control. Though we make significant modeling simplifications, our corresponding controller that uses this model is able to experimentally achieve a large reduction in energy usage without any degradations in occupant comfort. It is in this way that we justify the modeling simplifications that we have made. We conclude by presenting results from experiments on our building HVAC testbed, which s...

Aswani, Anil; Taneja, Jay; Krioukov, Andrew; Culler, David; Tomlin, Claire

2012-01-01T23:59:59.000Z

295

Ameren Illinois (Electric) - Custom, HVAC, and Motor Business Efficiency  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ameren Illinois (Electric) - Custom, HVAC, and Motor Business Ameren Illinois (Electric) - Custom, HVAC, and Motor Business Efficiency Incentives Ameren Illinois (Electric) - Custom, HVAC, and Motor Business Efficiency Incentives < Back Eligibility Commercial Industrial Multi-Family Residential Nonprofit Savings Category Other Heating & Cooling Commercial Heating & Cooling Cooling Home Weatherization Construction Commercial Weatherization Design & Remodeling Manufacturing Sealing Your Home Ventilation Heat Pumps Heating Appliances & Electronics Commercial Lighting Lighting Water Heating Maximum Rebate $600,000/year/facility. Incentives $1-$200,000: paid at 100% Incentives $200,000-$600,000: paid at 50% Custom: 50% of incremental cost Retro-Commissioning: $200,000/year/facility; $100,000/project Leak Survey: $10,000

296

Alabama Gas Corporation - Residential Natural Gas Rebate Program |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Alabama Gas Corporation - Residential Natural Gas Rebate Program Alabama Gas Corporation - Residential Natural Gas Rebate Program Alabama Gas Corporation - Residential Natural Gas Rebate Program < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heating Appliances & Electronics Water Heating Program Info State Alabama Program Type Utility Rebate Program Rebate Amount Furnace (Replacement): $200 Dryer (Replacement): $100 Natural Gas Range/Cooktop (Replacement): $100 Water Heaters (Replacement): $200 Tankless Water Heaters (Replacement): $200 Provider Alabama Gas Corporation Alabama Gas Corporation (Alagasco) offers various rebates to its residential customers who replace older furnaces, water heaters, cooktops, ranges and clothes dryers with new, efficient equipment. All equipment

297

HVAC Cabinet Air Leakage Test Method - Building America Top Innovation...  

Energy Savers (EERE)

their air sealing practices to reduce the amount of air leaking at ducts and duct boots, testing showed that distribution systems still leaked at air handlers and furnace...

298

Building America Top Innovations 2014 Profile: HVAC Cabinet Air...  

Energy Savers (EERE)

their air sealing practices to reduce the amount of air leaking at ducts and duct boots, testing showed that distribution systems still leaked at air handlers and furnace...

299

Retrofit Analysis of HVAC Systems Using Artificial Neural Networks.  

E-Print Network (OSTI)

??This thesis aims to explore the benefits of retrofits applied to the compressor and burner in the AC and furnace respectively and how best to… (more)

Anand, Anish

2014-01-01T23:59:59.000Z

300

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

Note: This page contains sample records for the topic "furnace gas hvac" 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.


301

Radon entry rate analyses using in situ tracer gas method application  

Science Journals Connector (OSTI)

......indoor environment, standard methods of radon diagnosis...ventilation (specific modes of HVAC systems operation...for new houses given in standards. Table-5. Results...efforts to comply with the standard requirements on new buildings...services in buildings like HVAC systems, water and gas......

A. Fro?ka; K. Jílek

2014-07-01T23:59:59.000Z

302

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

303

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....

304

Montana-Dakota Utilities (Gas) - Commercial Natural Gas Efficiency Rebate  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

(Gas) - Commercial Natural Gas Efficiency (Gas) - Commercial Natural Gas Efficiency Rebate Program Montana-Dakota Utilities (Gas) - Commercial Natural Gas Efficiency Rebate Program < Back Eligibility Commercial Savings Category Other Heating & Cooling Commercial Heating & Cooling Heating Program Info State South Dakota Program Type Utility Rebate Program Rebate Amount Furnace: $150 - $300 Custom: Varies by project Provider Montana-Dakota Utilities Co. Montana-Dakota Utilities (MDU) offers rebates on energy efficient natural gas furnaces to its eligible commercial customers. New furnaces are eligible for a rebate incentive between $150 and $300, if the equipment meets program efficiency standards. Furnaces with AFUE between 92% of 95% are eligible for rebates if they are being installed as replacement units

305

Optimizing HVAC Control to Improve Building Comfort and Energy Performance  

E-Print Network (OSTI)

This paper demonstrates the benefits of optimal control in well-designed and operated buildings using a case study. The case study building was built in 2001. The HVAC and control systems have been installed with state-of-the-art equipment which...

Song, L.; Joo, I.; Dong, D.; Liu, M.; Wang, J.; Hansen, K.; Quiroz, L.; Swiatek, A.

2003-01-01T23:59:59.000Z

306

Air filtration: Choosing the right filter class for HVAC systems  

Science Journals Connector (OSTI)

As anyone who works with air filtration knows, getting the best from a system is about more than choosing efficient media and correct installation. Thomas Carlson of Vokes Air explains the importance of using and selecting the right filter class for a typical HVAC system.

Thomas Carlson

2008-01-01T23:59:59.000Z

307

Performance Validation and Energy Analysis of HVAC Systems using Simulation  

E-Print Network (OSTI)

that energy savings of between 15% and 40% could be made in commercial buildings by closer monitoring and supervision of energy-usage and related data. An earlier study by Kao and Pierce (1983) showed that sensor1 Performance Validation and Energy Analysis of HVAC Systems using Simulation Tim Salsbury and Rick

Diamond, Richard

308

Existing and prospective blast-furnace conditions  

SciTech Connect

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

309

Thermal Imaging Control of Furnaces and Combustors  

SciTech Connect

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

310

Electricity and Natural Gas Efficiency Improvements for Residential Gas  

NLE Websites -- All DOE Office Websites (Extended Search)

and Natural Gas Efficiency Improvements for Residential Gas and Natural Gas Efficiency Improvements for Residential Gas Furnaces in the U.S. Title Electricity and Natural Gas Efficiency Improvements for Residential Gas Furnaces in the U.S. Publication Type Report LBNL Report Number LBNL-59745 Year of Publication 2006 Authors Lekov, Alexander B., Victor H. Franco, Stephen Meyers, James E. McMahon, Michael A. McNeil, and James D. Lutz Document Number LBNL-59745 Publisher Lawrence Berkeley National Laboratory City Berkeley Abstract This paper presents analysis of the life-cycle costs for individual households and the aggregate energy and economic impacts from potential energy efficiency improvements in U.S. residential furnaces. Most homes in the US are heated by a central furnace attached to ducts for distributing heated air and fueled by natural gas. Electricity consumption by a furnace blower is significant, comparable to the annual electricity consumption of a major appliance. Since the same blower unit is also used during the summer to circulate cooled air in centrally air conditioned homes, electricity savings occur year round. Estimates are provided of the potential electricity savings from more efficient fans and motors. Current regulations require new residential gas-fired furnaces (not including mobile home furnaces) to meet or exceed 78% annual fuel utilization efficiency (AFUE), but in fact nearly all furnaces sold are at 80% AFUE or higher. The possibilities for higher fuel efficiency fall into two groups: more efficient non-condensing furnaces (81% AFUE) and condensing furnaces (90-96% AFUE). There are also options to increase the efficiency of the furnace blower. This paper reports the projected national energy and economic impacts of requiring higher efficiency furnaces in the future. Energy savings vary with climate, with the result that condensing furnaces offer larger energy savings in colder climates. The range of impacts for a statistical sample of households and the percent of households with net savings in life cycle cost are shown. Gas furnaces are somewhat unusual in that the technology does not easily permit incremental change to the AFUE above 80%. Achieving significant energy savings requires use of condensing technology, which yields a large efficiency gain (to 90% or higher AFUE), but has a higher cost. With respect to electricity efficiency design options, the ECM has a negative effect on the average LCC. The current extra cost of this technology more than offsets the sizable electricity savings.

311

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

312

Building Technologies Office: Residential Furnaces and Boilers Framework  

NLE Websites -- All DOE Office Websites (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

313

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...

314

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...

315

Install Waste Heat Recovery Systems for Fuel-Fired Furnaces (English/Chinese) (Fact Sheet)  

SciTech Connect

Chinese translation of ITP fact sheet about installing Waste Heat Recovery Systems for Fuel-Fired Furnaces. For most fuel-fired heating equipment, a large amount of the heat supplied is wasted as exhaust or flue gases. In furnaces, air and fuel are mixed and burned to generate heat, some of which is transferred to the heating device and its load. When the heat transfer reaches its practical limit, the spent combustion gases are removed from the furnace via a flue or stack. At this point, these gases still hold considerable thermal energy. In many systems, this is the greatest single heat loss. The energy efficiency can often be increased by using waste heat gas recovery systems to capture and use some of the energy in the flue gas. For natural gas-based systems, the amount of heat contained in the flue gases as a percentage of the heat input in a heating system can be estimated by using Figure 1. Exhaust gas loss or waste heat depends on flue gas temperature and its mass flow, or in practical terms, excess air resulting from combustion air supply and air leakage into the furnace. The excess air can be estimated by measuring oxygen percentage in the flue gases.

Not Available

2011-10-01T23:59:59.000Z

316

Radiant heating and cooling, displacement ventilation with heat recovery and storm water cooling: An environmentally responsible HVAC system  

SciTech Connect

This paper describes the design, operation, and performance of an HVAC system installed as part of a project to demonstrate energy efficiency and environmental responsibility in commercial buildings. The systems installed in the 2180 m{sup 2} office building provide superior air quality and thermal comfort while requiring only half the electrical energy of conventional systems primarily because of the hydronic heating and cooling system. Gas use for the building is higher than expected because of longer operating hours and poor performance of the boiler/absorption chiller.

Carpenter, S.C.; Kokko, J.P. [Enermodal Engineering Ltd., Kitchener, Ontario (Canada)

1998-12-31T23:59:59.000Z

317

Assessment of organic compound exposures, thermal comfort parameters, and HVAC system-driven air exchange rates in public school portable classrooms in California  

E-Print Network (OSTI)

no no, y e s - only HVAC filters: sizes, when changed 68%n=2) (n=19) 100% no 95% no Current HVAC air filter was notoriginal When HVAC air filter was last changed (reported as

Shendell, Derek Garth

2010-01-01T23:59:59.000Z

318

Two Alabama Elementary Schools Get Cool with New HVAC Units | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Alabama Elementary Schools Get Cool with New HVAC Units Alabama Elementary Schools Get Cool with New HVAC Units Two Alabama Elementary Schools Get Cool with New HVAC Units October 1, 2010 - 2:05pm Addthis Winston County School District will receive 14 new HVAC units with State Energy Program funding. | File photo Winston County School District will receive 14 new HVAC units with State Energy Program funding. | File photo Lindsay Gsell What are the key facts? Two public elementary schools receive 14 new HVAC units for classrooms. School district estimates nearly 10 percent in electrical savings with new units. Nineteen Alabama public school districts using Recovery Act grants to save energy and money. Addison Elementary School and Double Springs Elementary School in northwestern Alabama were warm. Some classrooms just didn't cool fast enough. The buildings, which were

319

Furnace Blower Performance Improvements- Building America Top Innovation  

Energy.gov (U.S. Department of Energy (DOE))

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

320

HVAC Radial Air Bearing Heat Exchangers Research Project | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Radial Air Bearing Heat Exchangers Radial Air Bearing Heat Exchangers Research Project HVAC Radial Air Bearing Heat Exchangers Research Project The U.S. Department of Energy is currently conducting research into heating, ventilation, and air conditioning (HVAC) radial air bearing heat exchangers. Rotary air bearing heat exchanger technology simultaneously solves four long standing problems of conventional "fan-plus-finned-heat-sink" heat exchangers. Project Description This project seeks to design, fabricate, and test successive generations of prototype radial air bearing heat exchanger devices based on lessons learned and further insights into device optimization, computational fluid dynamic studies for parametric optimization and determination of scaling laws, and laboratory measurement of flow field and heat transfer

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321

Free-cooling: A total HVAC design concept  

SciTech Connect

This paper discusses a total ''free cooling'' HVAC design concept in which mechanical refrigeration is practically obviated via the refined application of existing technological strategies and a new diffuser terminal. The principles being applied are as follows; Thermal Swing: This is the active contribution of programmed heat storage to overall HVAC system performance. Reverse Diffuser: This is a new air terminal design that facilitates manifesting the thermal storage gains. Developing the thermal storage equation system into a generalized simulation model, optimizing the thermal storage and operating strategies with a computer program and developing related algorithms are subsequently illustrated. Luminair Aspiration: This feature provides for exhausting all luminair heat totally out of the building envelope, via an exhaust duct system and insulated boots. Two/Three-Stage Evaporative Cooling: This concept comprises a system of air conditioning that entails a combination of closed and open loop evaporative cooling with standby refrigeration only.

Janeke, C.E.

1982-01-01T23:59:59.000Z

322

Quantitative Methods for Comparing Different HVAC Control Schemes  

E-Print Network (OSTI)

Experimentally comparing the energy usage and comfort characteristics of different controllers in heating, ventilation, and air-conditioning (HVAC) systems is difficult because variations in weather and occupancy conditions preclude the possibility of establishing equivalent experimental conditions across the order of hours, days, and weeks. This paper is concerned with defining quantitative metrics of energy usage and occupant comfort, which can be computed and compared in a rigorous manner that is capable of determining whether differences between controllers are statistically significant in the presence of such environmental fluctuations. Experimental case studies are presented that compare two alternative controllers (a schedule controller and a hybrid system learning-based model predictive controller) to the default controller in a building-wide HVAC system. Lastly, we discuss how our proposed methodology may also be able to quantify the efficiency of other building automation systems.

Aswani, Anil; Taneja, Jay; Krioukov, Andrew; Culler, David; Tomlin, Claire

2012-01-01T23:59:59.000Z

323

Plutonium Finishing Plant (PFP) HVAC System Component Index  

SciTech Connect

This document lists safety class (SC) and safety significant (SS) components for the Heating Ventilation Air Conditioning (HVAC) and specifies the critical characteristics for Commercial Grade Items (CGI), as required by HNF-PRO-268 and HNF-PRO-18 19. These are the minimum specifications that the equipment must meet in order to properly perform its safety function. There may be several manufacturers or models that meet the critical characteristics for any one item. The Plutonium Finishing Plant (PFP) HVAC System includes sub-systems 25A through 25K. Specific system boundaries and justifications are contained in HNF-SD-CP-SDD-005, ''Definition and Means of Maintaining the Ventilation System Confinement Portion of the PFP Safety Envelope.'' The procurement requirements associated with the system necessitates procurement of some system equipment as Commercial Grade Items in accordance with HNF-PRO-268, ''Control of Purchased Items and Services.''

DIAZ, E.N.

2000-03-30T23:59:59.000Z

324

HVAC Optimized Heat Exchangers Research Project | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Optimized Heat Exchangers Research Optimized Heat Exchangers Research Project HVAC Optimized Heat Exchangers Research Project The U.S. Department of Energy is currently conducting research into heating, ventilation, and air conditioning (HVAC) optimized heat exchangers. The information generated in this study will demonstrate performance improvements that can be achieved through optimization of refrigerant circuitry for non-uniform inlet air distribution. The tubing circuitry on fin-tube heat exchangers used in residential space-conditioning systems is typically designed assuming uniform airflow through the finned passageways. However, the air flow in installed systems is highly non-uniform, resulting in mismatched refrigerant-air heat transfer that reduces the capacity of the heat exchanger and efficiency of

325

An Application of State-Of-The-Art HVAC and Building Systems  

E-Print Network (OSTI)

AN APPLICATION OF STATE-OF-THE-ART HVAC AND BUILDING SYSTEMS DONALD P. FIORINO, M.S., P.E. Energy Conservation Manager Texas Instruments, Inc. Defense Systems and Electronics Group Dallas, Texas ABSTRACT This case study describes... the successful application of state-of-the-art HVAC and building systems at a large commercial office and industrial facility. The facility's exterior envelope systems, HVAC systems, lighting systems, energy conservation systems, exhaust/heat recovery...

Fiorino, D. P.

326

Total Quality Commissioning for HVAC Systems to Assure High Performance Throughout the Whole Life Cycle  

E-Print Network (OSTI)

TOTAL QUALITY COMMISSIONING FOR HVAC SYSTEMS TO ASSURE HIGH PERFORMANCE THROUGHOUT THE WHOLE LIFE CYCLE By: Grahame E. Maisey, P.E., and Beverly Milestone, LEED AP Building Services Consultants INTRODUCTION Current HVAC systems... are not coming close to approaching life cycle performance expectations for energy, operation and maintenance, occupant comfort and productivity and longevity. HVAC systems in buildings claiming to be sustainable, with integrated, energy conscious design...

Maisey, G.; Milestone, B.

2005-01-01T23:59:59.000Z

327

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

328

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

329

Outdoor airflow into HVAC systems: An evaluation of measurement  

NLE Websites -- All DOE Office Websites (Extended Search)

Outdoor airflow into HVAC systems: An evaluation of measurement Outdoor airflow into HVAC systems: An evaluation of measurement technologies Title Outdoor airflow into HVAC systems: An evaluation of measurement technologies Publication Type Report LBNL Report Number LBNL-53834 Year of Publication 2003 Authors Fisk, William J., David Faulkner, Douglas P. Sullivan, and William W. Delp Abstract During the last few years, new technologies have been introduced for measuring the flow rates of outdoor air (OA) into HVAC systems; however, an evaluation of these measurement technologies has not previously been published. This document describes a test system and protocols developed for controlled evaluation of these measurement technologies. The results of tests of three measurement technologies are also summarized. The test system and protocol were judged practical and very useful. The test results indicate that one measurement technology can measure OA flow rates with errors of 20% or less without a field-based calibration, as long as the OA velocities are sufficient to provide an accurately measurable pressure signal. The test results for a second measurement technology are similar; however, a difficult field-based calibration relating the OA flow rate with the pressure signal would be required to reduce errors below approximately 30%. The errors in OA flow rates measured with the third measurement technology, that uses six electronic airspeed sensors downstream of the OA inlet louver, exceeded 100%; however, these errors could be substantially reduced through a difficult field based calibration. The effects of wind on the accuracy of these measurement technologies still needs to be evaluated

330

Measuring rates of outdoor airflow into HVAC systems  

SciTech Connect

During the last few years, new technologies have been introduced for measuring the flow rates of outside air into HVAC systems. This document describes one particular technology for measuring these airflows, a system and a related protocol developed to evaluate this and similar measurement technologies under conditions without wind, and the results of our evaluations. We conclude that the measurement technology evaluated can provide a reasonably accurate measurement of OA flow rate over a broad range of flow, without significantly increasing airflow resistance.

Fisk, William J.; Faulkner, David; Sullivan, Douglas P.; Delp, Woody

2002-10-01T23:59:59.000Z

331

DOE Zero Energy Ready Home Low Load High Efficiency HVAC Webinar (Text Version)  

Energy.gov (U.S. Department of Energy (DOE))

Below is the text version of the DOE Zero Energy Ready Home webinar, Low Load High Efficiency HVAC, presented in May 2014.

332

Characterization of the HVAC performance with defroster grillers and instrument panel registers  

Science Journals Connector (OSTI)

Improving HVAC performance is of paramount importance to sustain ... was between 15 to 25 degrees with a standard distance ratio of one. During the cooling...

M. F. Kader; Y. M. Youn; Y. D. Jun…

2009-06-01T23:59:59.000Z

333

E-Print Network 3.0 - air conditioning hvac Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

systems play an important role in providing comfort in residential, commercial... of Heating, Refrigerating, and Air-Conditioning Engineers. Batterman S. and Burge H. 1995. "HVAC...

334

Numerical Investigation of Flow Induced Noise in a Simplified HVAC Duct with OpenFOAM.  

E-Print Network (OSTI)

?? Due to the growing demand for comfort, the noise generated by HVAC components should be considered by the designers. Flow induced noise is one… (more)

Wang, Cong

2013-01-01T23:59:59.000Z

335

REDESIGN OF HVAC SYSTEM TO IMPROVE ENERGY EFFICIENCY OF EDUCATIONAL BUILDING.  

E-Print Network (OSTI)

??An energy modeling software was used to analyze the current building configuration and simulations were performed in an attempt to redesign the current HVAC system… (more)

Hagene, Brian Matthew

2012-01-01T23:59:59.000Z

336

Energy Consumption Analyses of Frequently-used HVAC System Types in High Performance Office Buildings.  

E-Print Network (OSTI)

??The high energy consumption of heating, ventilation and air-conditioning (HVAC) systems in commercial buildings is a hot topic. Office buildings, a typical building set of… (more)

Yan, Liusheng

2014-01-01T23:59:59.000Z

337

Development of a High-Efficiency Zonal Thermoelectric HVAC System for Automotive Applications  

Energy.gov (U.S. Department of Energy (DOE))

Identify a technical and business approach to accelerate the deployment of light-duty automotive TE HVAC technology, maintain occupant comfort, and improve energy efficiency.

338

Columbia Gas of Virginia- Business Efficiency Rebate Program  

Energy.gov (U.S. Department of Energy (DOE))

Columbia Gas of Virginia offers rebates to commercial customers for the purchase and installation of energy efficient equipment. Water heaters, furnaces, boilers and controls, laundromat clothes...

339

PECO Energy (Gas) – Heating Efficiency Rebate Program  

Energy.gov (U.S. Department of Energy (DOE))

The PECO Smart Gas Efficiency Upgrade Program offers rebates and incentives to commercial or residential customers that install an ENERGY STAR qualified high-efficiency natural gas furnace or...

340

Oklahoma Natural Gas- Residential Efficiency Rebates (Oklahoma)  

Energy.gov (U.S. Department of Energy (DOE))

To encourage customers to install high-efficiency natural gas equipment in homes, Oklahoma Natural Gas offers rebates to residential customers and builders for furnace, water heating, or space...

Note: This page contains sample records for the topic "furnace gas hvac" 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

Piedmont Natural Gas- Residential Equipment Efficiency Program  

Energy.gov (U.S. Department of Energy (DOE))

Piedmont Natural Gas offers rebates on high-efficiency natural gas tankless water heaters, tank water heaters and furnaces. Customers on the 201-Residential Service Rate or 221-Residential Service...

342

Investigation of IAQ-Relevant Surface Chemistry and Emissions on HVAC Filter Materials  

SciTech Connect

Chemical reactions involving ozone of outdoor origin and indoor materials are known to be significant sources of formaldehyde and other irritant gas-phase oxidation products in the indoor environment. HVAC filters are exposed to particularly high ozone concentrations--close to outdoor levels. In this study, we investigated chemical processes taking place on the surface of filters that included fiberglass, polyester, cotton/polyester blend and synthetic (e.g., polyolefin) filter media. Ozone reactions were studied on unused filter media, and on filters that were deployed for 3 months in two different locations: at the Lawrence Berkeley National Laboratory and at the Port of Oakland. Specimens from each filter were exposed to ozone under controlled conditions in a laboratory flow tube at a constant flow of dry or humidified air (50percent relative humidity). Ozone was generated with a UV source upstream of the flow tube, and monitored using a photometric detector. Ozone breakthrough curves were recorded for each sample exposed to ~;;150 ppbv O3 for periods of ~;;1000 min, from which we estimated their uptake rate. Most experiments were performed at 1.3 L/min (corresponding to a face velocity of 0.013 m/s), except for a few tests performed at a higher airflow rate, to obtain a face velocity of 0.093 m/s, slightly closer to HVAC operation conditions. Formaldehyde and acetaldehyde, two oxidation byproducts, were collected downstream of the filter and quantified. Emissions of these volatile aldehydes were consistently higher under humidified air than under dry conditions, at which levels were near the limit of detection. Our results confirm that there are significant reactions of ozone as air containing ozone flows through HVAC filters, particularly when the filters are loaded with particles and the air is humidified. The amount of ozone reacted was not clearly related to the types of filter media, e.g., fiberglass versus synthetic. Specific fiberglass filters that were coated with an impaction oil showed significantly higher formaldehyde emissions than most other samples. Those emissions were magnified in the presence of particles (i.e., in used filters), and were observed even in the absence of ozone, which suggests that hydrolysis of filter binder or tackifier additives may be the reason for those high emissions. Mass balance calculations indicate that the emission rates of formaldehyde and acetaldehyde from the filters are generally not large enough to substantially increase indoor formaldehyde or acetaldehyde concentrations.

Destaillats, Hugo; Fisk, William J.

2010-02-01T23:59:59.000Z

343

Coal-fired furnace for testing of thermionic converters. Topical report  

SciTech Connect

The development of thermionic converter technology has progressed to make near-term applications interesting. One of these applications is the thermionic topping of a pulverized coal-fired central station powerplant. Up to now, thermionic converters have been flame tested using natural gas as fuel. A new test furnace is required for evaluation of thermionic converters in a coal-fired environment. The design and costs of a facility which adapts a coal-fired furnace built by Foster Wheeler Development Corporation (FWDC) for thermionic converter testing are discussed. Such a facility would be exempt from air pollution regulations because of its low firing rate.

Not Available

1980-10-01T23:59:59.000Z

344

Software-as-a-Service Optimised Scheduling of a Solar-Assisted HVAC System with Thermal Storage  

E-Print Network (OSTI)

solar energy available would result in overcharging of the hot storage.of a solar-assisted HVAC system with thermal storage. Energystorage and solar- assisted HVAC for the purpose of optimizing its energy

Mammoli, Andrea

2014-01-01T23:59:59.000Z

345

Software-as-a-Service Optimised Scheduling of a Solar-Assisted HVAC System with Thermal Storage  

E-Print Network (OSTI)

of a solar-thermal- assisted hvac system. Energy andsolar thermal collectors using flat reflective surfaces. Solar Energy,of a solar-assisted HVAC system with thermal storage. Energy

Mammoli, Andrea

2014-01-01T23:59:59.000Z

346

Procedures to identify Energy Conservation Opportunities applied to HVAC system: example of VSD of chilled water pumps  

E-Print Network (OSTI)

Procedures to identify Energy Conservation Opportunities applied to HVAC system: example of VSD of HVAC equipment using variable speed drive (VSD) is an Energy Conservation Opportunity (ECO) which can

Paris-Sud XI, Université de

347

Proceedings of Healthy Buildings 2009 Paper 535 HVAC filters as "passive" samplers: fate analysis of indoor particles  

E-Print Network (OSTI)

Proceedings of Healthy Buildings 2009 Paper 535 HVAC filters as "passive" samplers: fate analysis the effectiveness of using HVAC filters as an indoor sampling technique. #12;Proceedings of Healthy Buildings 2009

Siegel, Jeffrey

348

Proposal for the Award of a Contract for Maintenance, Operation and Minor Installation Work for CERN Cooling and HVAC Systems  

E-Print Network (OSTI)

Proposal for the Award of a Contract for Maintenance, Operation and Minor Installation Work for CERN Cooling and HVAC Systems

1996-01-01T23:59:59.000Z

349

A Feasibility Study for Recycling Used Automotive Oil Filters In A Blast Furnace  

SciTech Connect

This feasibility study has indicated that of the approximately 120,000 tons of steel available to be recycled from used oil filters (UOF's), a maximum blast furnace charge of 2% of the burden may be anticipated for short term use of a few months. The oil contained in the most readily processed UOF's being properly hot drained and crushed is approximately 12% to 14% by weight. This oil will be pyrolized at a rate of 98% resulting in additional fuel gas of 68% and a condensable hydrocarbon fraction of 30%, with the remaining 2% resulting as carbon being added into the burden. Based upon the writer's collected information and assessment, there appears to be no operational problems relating to the recycling of UOF's to the blast furnace. One steel plant in the US has been routinely charging UOF's at about 100 tons to 200 tons per month for many years. Extensive analysis and calculations appear to indicate no toxic consideration as a result of the pyrolysis of the small contained oil ( in the 'prepared' UOFs) within the blast furnace. However, a hydrocarbon condensate in the ''gasoline'' fraction will condense in the blast furnace scrubber water and may require additional processing the water treatment system to remove benzene and toluene from the condensate. Used oil filters represent an additional source of high quality iron units that may be effectively added to the charge of a blast furnace for beneficial value to the operator and to the removal of this resource from landfills.

Ralph M. Smailer; Gregory L. Dressel; Jennifer Hsu Hill

2002-01-21T23:59:59.000Z

350

Minimization of energy consumption in HVAC systems with data-driven models and an interior-point method  

E-Print Network (OSTI)

Minimization of energy consumption in HVAC systems with data-driven models and an interior online 13 June 2014 Keywords: HVAC Interior-point method Internal heat gain Multilayer perceptron-driven approach is applied to minimize energy consumption of a heating, ventilating, and air conditioning (HVAC

Kusiak, Andrew

351

HVAC Component Data Modeling Using Industry Foundation Classes Vladimir Bazjanac, Lawrence Berkeley National Laboratory, U.S.A.  

E-Print Network (OSTI)

1 HVAC Component Data Modeling Using Industry Foundation Classes Vladimir Bazjanac, Lawrence. This paper describes a number of aspects of a major extension of the HVAC part of the IFC data model. First is the introduction of a more generic approach for handling HVAC components. This includes type information, which

352

Residential HVAC Data, Assumptions and Methodology for End-Use Forecasting with EPRI-REEPS 2.1  

E-Print Network (OSTI)

LBL-34045 UC-1600 Residential HVAC Data, Assumptions and Methodology for End-Use Forecasting-uses include Heating, Ventilation and Air Conditioning (HVAC). Our analysis uses the modeling framework provided by the HVAC module in the Residential End-Use Energy Planning System (REEPS), which was developed

353

1736 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 51, NO. 10, OCTOBER 2003 Impulse Response of the HVAC Duct as a  

E-Print Network (OSTI)

of the HVAC Duct as a Communication Channel Pavel V. Nikitin, Member, IEEE, Daniel D. Stancil, Senior Member (HVAC) ducts in buildings behave as multimode waveguides when excited at radio frequencies and thus, can of a usual indoor propagation channel. In this paper, we describe physical mechanisms which affect the HVAC

Hochberg, Michael

354

7/11/00-draft copy: do not quote 1 of 30 New Technologies for Residential HVAC Ducts  

E-Print Network (OSTI)

7/11/00-draft copy: do not quote 1 of 30 New Technologies for Residential HVAC Ducts Burke Treidler is not evaluated and HVAC contractors overcome duct system shortcomings by installing oversized equipment Technologies for Residential HVAC Ducts fittings with some use of ductboard. Fittings that snap together were

355

Feasibility of Retrofitting Centralized HVAC Systems for Room-Level Zoning Tamim Sookoor, Brian Holben, Kamin Whitehouse  

E-Print Network (OSTI)

Feasibility of Retrofitting Centralized HVAC Systems for Room-Level Zoning Tamim Sookoor, Brian {sookoor,bnh4k,whitehouse}@cs.virginia.edu Abstract--Heating, ventilation, and cooling (HVAC) accounts's largest energy consumers. Many attempts have been made to optimize the control of HVAC systems

Whitehouse, Kamin

356

IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 53, NO. 2, FEBRUARY 2005 335 On the Capacity Limits of HVAC Duct Channel for  

E-Print Network (OSTI)

of HVAC Duct Channel for High-Speed Internet Access Ariton E. Xhafa, Member, IEEE, Ozan K. Tonguz, Member and experimental channel-capacity estimates of heating, ventilation, and air condi- tioning (HVAC) ducts based suppressed. Our experimental results also show that even in the case of more complex HVAC duct networks (i

Stancil, Daniel D.

357

An experimental system for advanced heating, ventilating and air conditioning (HVAC) control  

Science Journals Connector (OSTI)

While having the potential to significantly improve heating, ventilating and air conditioning (HVAC) system performance, advanced (e.g., optimal, robust and various forms of adaptive) controllers have yet to be incorporated into commercial systems. Controllers consisting of distributed proportional-integral (PI) control loops continue to dominate commercial HVAC systems. Investigation into advanced HVAC controllers has largely been limited to proposals and simulations, with few controllers being tested on physical systems. While simulation can be insightful, the only true means for verifying the performance provided by HVAC controllers is by actually using them to control an HVAC system. The construction and modeling of an experimental system for testing advanced HVAC controllers, is the focus of this article. A simple HVAC system, intended for controlling the temperature and flow rate of the discharge air, was built using standard components. While only a portion of an overall HVAC system, it is representative of a typical hot water to air heating system. In this article, a single integrated environment is created that is used for data acquisition, controller design, simulation, and closed loop controller implementation and testing. This environment provides the power and flexibility needed for rapid prototyping of various controllers and control design methodologies.

Michael Anderson; Michael Buehner; Peter Young; Douglas Hittle; Charles Anderson; Jilin Tu; David Hodgson

2007-01-01T23:59:59.000Z

358

HVAC filter bypass modelling and experimental validation Jeffrey A. Siegel1,*  

E-Print Network (OSTI)

standards that address HVAC filtration efficacy including ASHRAE Standard 52.2 (ASHRAE, 2007) and EN 779HVAC filter bypass modelling and experimental validation Jeffrey A. Siegel1,* , David B. Chojnowski of filter bypass, an ASHRAE Standard 52.2-2007 compliant apparatus was modified to accept filters

Siegel, Jeffrey

359

Co-design of control algorithm and embedded platform for building HVAC systems  

Science Journals Connector (OSTI)

The design of heating, ventilation and air conditioning (HVAC) systems is crucial for reducing energy consumption in buildings. As complex cyber-physical systems, HVAC systems involve three closely-related subsystems -- the control algorithm, the physical ... Keywords: building energy efficiency, co-design, platform-based design

Mehdi Maasoumy; Qi Zhu; Cheng Li; Forrest Meggers; Alberto Sangiovanni-Vincentelli

2013-04-01T23:59:59.000Z

360

Fouling of HVAC Fin and Tube Heat Exchangers Jeffrey Siegel and Van P. Carey  

E-Print Network (OSTI)

Fouling of heat exchangers used in heating, ventilating, and air conditioning (HVAC) systems is important contributor to overall energy use and peak electric demand. Furthermore, the location of heat exchangers in HVAC systems means that if bioaerosols containing bacteria, fungi, and viruses deposit on heat

Note: This page contains sample records for the topic "furnace gas hvac" 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

Application of Multizone HVAC Control Using Wireless Sensor Networks and Actuating Vent Registers  

E-Print Network (OSTI)

Most residential heating, ventilating, and air conditioning (HVAC) systems are designed to treat the home as a single zone. Single zone control consists of one thermostat, in a central area of the house that controls the HVAC operation. In a single...

Watts, W.; Koplow, M.; Redfern, A.; Wright, P.

2007-01-01T23:59:59.000Z

362

Energy Savings with Energy-Efficient HVAC Systems in Commercial Buildings of Hong Kong  

E-Print Network (OSTI)

of the electricity in Hong Kong is consumed by commercial buildings, and heating, ventilation and air-conditioning (HVAC) is the largest end-user in such buildings, improving the efficiency of HVAC systems in commercial buildings, is the key measure to take in Hong...

Yang, J.; Chan, K.; Wu, X.

2006-01-01T23:59:59.000Z

363

Development of New HVAC Design Tools: Search for the Holy Grail of  

NLE Websites -- All DOE Office Websites (Extended Search)

Development of New HVAC Design Tools: Search for the Holy Grail of Development of New HVAC Design Tools: Search for the Holy Grail of Ventilation Research Speaker(s): Jelena Srebric Date: January 29, 2004 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: William Fisk HVAC systems are very important to our wellbeing, energy, and the environment. Current design tools are typically supported by basic knowledge, and keep us at arm's length from the many practical problems. The design paradigm has been shifted several times in the past from thermal comfort, energy conservation, health concerns, and now probably to security issues. Each of the shift has required better design tools of HVAC systems.A team led by Dr. Jelena Srebric at the Department of Architecture, the Penn State University (PSU) is developing new HVAC design tools to meet

364

Air Leakage of Furnaces and Air Handlers  

NLE Websites -- All DOE Office Websites (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.

365

Source attenuating HVAC equipment—Just the facts  

Science Journals Connector (OSTI)

Current classroom designs range from NC 63 to NC 25. The ASA/ANSI 12.60 Classroom Standard sets a relatively low background sound requirement for classrooms. Achieving 12.60 levels economically requires the maximum in source sound attenuation. This paper will provide a manufacturer’s perspective on current and low noiseHVAC products and the resulting classroomsound levels. Predictive acoustics software will be used to predict the space sound power level and some indication of equipment cost will be provided in order to assist designers in what is the best approach to low noiseclassroom design.

2004-01-01T23:59:59.000Z

366

Decomposition of formaldehyde by EPD photocatalyst filters in HVAC  

Science Journals Connector (OSTI)

This study used electrophoretic deposition (EPD) to apply titanium oxide (TiO2) coating on stainless steel filters and investigated the effectiveness of photocatalytic oxidation of formaldehyde by TiO2 under various conditions of heating ventilation air conditioning (HVAC). The results showed photocatalytic efficiency could reach 35.59% at 21 °C and 36.39% at 26 °C with 7 photocatalyst filters and 5 UVC lamps, the overall efficiency of formaldehyde removal of 52.37% at 21 °C, and 56.8% at 26 °C. By all experimental data can be found that the temperature for the photocatalytic performance is not obvious in the range of this study.

Chien-Chih Chen; Ching-Song Jwo; Tun-Ping Teng

2011-01-01T23:59:59.000Z

367

DOE Zero Ready Home Case Study: Brookside Development, Singer...  

Energy Savers (EERE)

continuous exhaust fans; 90 cfm * HVAC: 2-ton heat pump (HSPF 8, 14 SEER); 3-ton gas furnace (AFUE 96); ducts inside, MERV 10 filter * Hot Water: Tankless gas; EF 0.92 *...

368

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

369

Using coal-dust fuel in Ukrainian and Russian blast furnaces  

SciTech Connect

Ukrainian and Russian blast-furnace production falls short of the best global practices. It is no secret that, having switched to oxygen and natural gas in the 1960s, the blast-furnace industries have improved the batch and technological conditions and have attained a productivity of 2.5 and even 3 t/(m{sup 3} day), but have not been able to reduce coke consumption below 400 kg/t, which was the industry standard 40 years ago. The situation is particularly bad in Ukraine: in 2007, furnace productivity was 1.5-2 t/m{sup 3}, with a coke consumption of 432-530 kg/t. Theoretical considerations and industrial experience over the last 20 years show that the large-scale introduction of pulverized fuel, with simultaneous improvement in coke quality and in batch and technological conditions, is the only immediately available means of reducing coke consumption considerably (by 20-40%). By this means, natural-gas consumption is reduced or eliminated, and the efficiency of blast-furnace production and ferrous metallurgy as a whole is increased.

A.A. Minaev; A.N. Ryzhenkov; Y.G. Banninkov; S.L. Yaroshevskii; Y.V. Konovalov; A.V. Kuzin [Donetsk National Technical University, Donetsk (Russian Federation)

2008-02-15T23:59:59.000Z

370

Thermal Modeling for a HVAC Controlled Real-life Yong Fu1, Mo Sha1, Chengjie Wu1, Andrew Kutta1, Anna Leavey2, Chenyang Lu1,  

E-Print Network (OSTI)

Thermal Modeling for a HVAC Controlled Real-life Auditorium Yong Fu1, Mo Sha1, Chengjie Wu1, Andrew consumption in build- ings is heating, ventilation, and air conditioning (HVAC). For an HVAC system to provide, especially in large open spaces. To optimize HVAC control, it is important to establish accurate dynamic

Lu, Chenyang

371

PV modules, with a life measured in decades, will typically be in place longer than the outdoor unit of a HVAC system.  

E-Print Network (OSTI)

unit of a HVAC system. When the performance of an HVAC system deteriorates, it is usually inspected remain installed on the roof even after the system is no longer being used. Although HVAC units have only jumpers and screws effectively bond all parts of the listed device together. HVAC components are typically

Johnson, Eric E.

372

Self-calibrated active pyrometer for furnace temperature measurements  

DOE Patents (OSTI)

Pyrometer with a probe beam superimposed on its field-of-view for furnace temperature measurements. The pyrometer includes a heterodyne millimeter/sub-millimeter-wave or microwave receiver including a millimeter/sub-millimeter-wave or microwave source for probing. The receiver is adapted to receive radiation from a surface whose temperature is to be measured. The radiation includes a surface emission portion and a surface reflection portion which includes the probe beam energy reflected from the surface. The surface emission portion is related to the surface temperature and the surface reflection portion is related to the emissivity of the surface. The simultaneous measurement of surface emissivity serves as a real time calibration of the temperature measurement. In an alternative embodiment, a translatable base plate and a visible laser beam allow slow mapping out of interference patterns and obtaining peak values therefor. The invention also includes a waveguide having a replaceable end portion, an insulating refractory sleeve and/or a source of inert gas flow. The pyrometer may be used in conjunction with a waveguide to form a system for temperature measurements in a furnace. The system may employ a chopper or alternatively, be constructed without a chopper. The system may also include an auxiliary reflector for surface emissivity measurements.

Woskov, Paul P. (Bedford, MA); Cohn, Daniel R. (Chestnuthill, MA); Titus, Charles H. (Newtown Square, PA); Surma, Jeffrey E. (Kennewick, WA)

1998-01-01T23:59:59.000Z

373

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

374

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

375

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...

376

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

377

DOE Publishes Final Rule for Residential Furnace Fan Test Procedure  

Energy.gov (U.S. Department of Energy (DOE))

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

378

Fouling of HVAC fin and tube heat exchangers  

SciTech Connect

Fin and tube heat exchangers are used widely in residential, commercial and industrial HVAC applications. Invariably, indoor and outdoor air contaminants foul these heat exchangers. This fouling can cause decreased capacity and efficiency of the HVAC equipment as well as indoor air quality problems related to microbiological growth. This paper describes laboratory studies to investigate the mechanisms that cause fouling. The laboratory experiments involve subjecting a 4.7 fins/cm (12 fins/inch) fin and tube heat exchanger to an air stream that contains monodisperse particles. Air velocities ranging from 1.5-5.2 m/s (295 ft/min-1024 ft/min) and particle sizes from 1--8.6 {micro}m are used. The measured fraction of particles that deposit as well as information about the location of the deposited material indicate that particles greater than about 1 {micro}m contribute to fouling. These experimental results are used to validate a scaling analysis that describes the relative importance of several deposition mechanisms including impaction, Brownian diffusion, turbophoresis, thermophoresis, diffusiophoresis, and gravitational settling. The analysis is extended to apply to different fin spacings and particle sizes typical of those found in indoor air.

Siegel, Jeffrey; Carey, Van P.

2001-07-01T23:59:59.000Z

379

Sound quality descriptors for HVAC equipment from ARI Standards  

Science Journals Connector (OSTI)

The Air Conditioning and Refrigeration Institute (ARI) has several standards that provide methods to evaluate the sound quality of heating ventilating and air?conditioning (HVAC) equipment. These include Standard 270 Sound rating of outdoor unitary equipment Standard 350 Sound rating of non?ducted indoor air?conditioning equipment and Standard 1140P Procedures for evaluating sound quality of HVAC equipment. The preferred method in these standards is best described in Standard 1140P which uses one?third octave band sound power levels that are weighted to adjust for the sensitivity to frequency distribution and presence of tones and are then converted to a single number sound quality indicator. The tone adjustment is based on the projection of a given one?third octave band level relative to the average of the adjacent one?third octave bands. An alternate use of Zwicker method B to determine loudness and loudness level is also provided in ARI Standard 1140P. These standards provide a convenient method by which complex sounds for similar products may be compared.

2003-01-01T23:59:59.000Z

380

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

Note: This page contains sample records for the topic "furnace gas hvac" 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

Central Hudson Gas and Electric (Gas) - Commercial Energy Efficiency  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Commercial Energy Commercial Energy Efficiency Program Central Hudson Gas and Electric (Gas) - Commercial Energy Efficiency Program < Back Eligibility Commercial Installer/Contractor Institutional Local Government Nonprofit Schools Savings Category Heating & Cooling Commercial Heating & Cooling Heating Construction Appliances & Electronics Water Heating Maximum Rebate See Program Info State New York Program Type Utility Rebate Program Rebate Amount Furnace: $500 Furnace with ECM Fan: $700 - $900 Water Boiler: $800 - $1,200 Steam Boiler: $800 Boiler Reset Control: $100 Indirect Water Heater: $300 Programmable Thermostats: $25 Provider Central Hudson Gas and Electric The Business Energy SavingsCentral program is for non-residential gas customers of Central Hudson. This includes businesses, local governments,

382

Building HVAC Requirements Overview Page 4-1 4 Building HVAC Requirements  

E-Print Network (OSTI)

heating, radiant floor systems, evaporative cooling, gas cooling, ground-source heat pumps, and wood space requirements for additions to existing dwellings and for alterations to existing heating and cooling systems packages. Package C permits electric resistance space heating, but requires significantly greater

383

Basic Reaction Model of Automobile Exhaust Gas Treatment over Pt?Rh Catalyst  

Science Journals Connector (OSTI)

Basic Reaction Model of Automobile Exhaust Gas Treatment over Pt?Rh Catalyst ... The reactor is heated by a three-section electric furnace. ...

Motoaki Kawase; Hiroyasu Fujitsuka; Hitoshi Nakanishi; Tatsuya Yoshikawa; Kouichi Miura

2010-09-02T23:59:59.000Z

384

A review of NO[sub x] formation mechanisms in recovery furnaces  

SciTech Connect

Review of NOx formation studies shows that NO forms in recovery furnaces primarily by two independent mechanisms, thermal and fuel. Thermal NO formation is extremely temperature-sensitive. However, theoretical predictions indicate that recovery furnace temperatures are not high enough to form significant thermal NO. Fuel NO formation is less temperature-sensitive, and is related to fuel nitrogen content. Black liquors are shown to contain 0.05 to 0.24 weight percent fuel nitrogen. Conversion of just 20% of this would yield approximately 25-120 ppm NOx (at 8% 0[sub 2]) in the flue gas, enough to represent the majority of the total NOx. Data from operating recovery furnaces show NOx emissions ranging from near zero to over 100 ppm at 8% 0[sub 2]. An apparent increase in recovery furnace NOx emissions was observed with increasing solids. This increase is much less than predicted by thermal NO formation theory, indicating that other NO formation/destruction mechanisms, such as fuel NO formation, are important. No data are available to show the relative importance of thermal and fuel NO to total NOx during black liquor combustion.

Nichols, K.M.; Thompson, L.M.; Empie, H.J (Inst. of Paper Science and Technology, Atlanta, GA (United States))

1993-01-01T23:59:59.000Z

385

HVAC Right-Sizing Part 1: Calculating Loads  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Building America Building America Presented by: Mike Gestwick - National Renewable Energy Laboratory Arlan Burdick, Anthony Grisolia - IBACOS, a Building America Research Team HVAC Right-Sizing Part 1: Calculating Loads Thursday, April 28 11:00 a.m. - 12:00 p.m. Eastern Building Technologies Program Mike Gestwick michael.gestwick@nrel.gov Building America: Introduction April 28, 2011 Introduction to Building America * Reduce energy use in new and existing residential buildings * Promote building science and systems engineering / integration approach * "Do no harm": Ensure safety, health and durability are maintained or improved * Accelerate adoption of high performance technologies www.buildingamerica.gov 15 Industry Research Teams Habitat Cost Effective Energy Retrofit Program

386

Total and Peak Energy Consumption Minimization of Building HVAC Systems Using Model Predictive Control  

E-Print Network (OSTI)

inputs. The idea of modeling building thermal behavior usingThe detail of building thermal modeling is pre- sented in [Modeling and optimal control algorithm design for hvac systems in energy efficient buildings,’’

Maasoumy, Mehdi; Sangiovanni-Vincentelli, Alberto

2012-01-01T23:59:59.000Z

387

What are the Best HVAC Solutions for Low-Load, High Performance Homes?"  

Energy.gov (U.S. Department of Energy (DOE))

This presentation was given at the Summer 2012 DOE Building America meeting on July 26, 2012, and addressed the question What are the best HVAC solutions for low-load, high performance homes?"

388

Building America Webinar: HVAC Right-Sizing Part 1—Calculating Loads  

Energy.gov (U.S. Department of Energy (DOE))

During this webinar, Building America Research Team IBACOS highlighted the key criteria required to create accurate heating and cooling load calculations. Current industry rules of thumb, perceptions and barriers to right-sizing HVAC were also discussed.

389

CO 2 - Based Demand-Controlled Ventilation Control Strategies for Multi-Zone HVAC Systems  

E-Print Network (OSTI)

CO 2-based demand-controlled ventilation DCV strategy offers a great opportunity to reduce energy consumption in HVAC systems while providing the required ventilation. However, implementing CO 2-based DCV under ASHRAE 62.1.2004 through 2010...

Nassif, N.

2011-01-01T23:59:59.000Z

390

Analysis of the HVAC System at the Willow Branch Intermediate School  

E-Print Network (OSTI)

This report presents an analysis of the HVAC system at the Willow Branch Intermediate School for the MEEN 685 class project. The school is located at College Station, Texas. A portion of the school belonged to Oakwood Intermediate School which...

Wei, G.

1997-01-01T23:59:59.000Z

391

Application of Various HVAC Simulation Programs and Visual Tools to Commissioning  

E-Print Network (OSTI)

Various existing HVAC system simulation programs and visualization tools are considered to be potentially powerful tools for commissioning. Although not originally developed as commissioning tools, these programs facilitate the confirmation...

Zheng, M.; Pan, S.

2007-01-01T23:59:59.000Z

392

Computational Study on Thermal Properties of HVAC System with Building Structure Thermal Storage  

E-Print Network (OSTI)

Building structure thermal storage (BSTS) HVAC systems can store heat during nighttime thermal storage operation (nighttime operation hours) by using off-peak electricity and release it in the daytime air-conditioning operation (daytime operation...

Sato, Y.; Sagara, N.; Ryu, Y.; Maehara, K.; Nagai, T.

2007-01-01T23:59:59.000Z

393

DOE Convening Report on Certification of Commercial HVAC and CRE Products  

Energy.gov (U.S. Department of Energy (DOE))

This document is the convening report on the feasibility of a negotiated rulemaking to revise the certification program for commercial HVAC and CRE products published on October 2, 2012.

394

Energy Savings Potential and RD&D Opportunities for Commercial Building HVAC  

Energy.gov (U.S. Department of Energy (DOE))

This Building Technologies Office report assesses heating, ventilation, and air-conditioning (HVAC) technologies for U.S. commercial buildings to identify and provide analysis on 17 priority technology options in various stages of development.

395

Requirements for Commissioning HVAC Systems Using BEMS and Commissioning the BEMS Itself Based on Questionnaire Surveys  

E-Print Network (OSTI)

In this paper the present status and requirements for commissioning of HVAC Systems using Building Energy Management Systems (BEMS) and commissioning the BEMS itself are investigated and summarized. The information presented is based on the results...

Yoshida, H.; Vaezi-Nejad, H.; Choiniere, D.; Wang, F.

2004-01-01T23:59:59.000Z

396

Development of HVAC System Performance Criteria Using Factorial Design and DOE-2 Simulation  

E-Print Network (OSTI)

A new approach is described for the development of Heating, Ventilating, and Air-conditioning (HVAC) System Performance Criteria for the Texas Building Energy Design Standard. This approach integrates a design of experimental methodology and DOE-2...

Hou, D.; Jones, J. W.; Hunn, B. D.; Banks, J. A.

1996-01-01T23:59:59.000Z

397

A Qualitive Modeling Approach for Fault Detection and Diagnosis on HVAC Systems  

E-Print Network (OSTI)

This paper describes the basics and first test results of a model based approach using qualitative modeling to perform Fault Detection and Diagnostics (FDD) on HVAC and R systems. A quantized system describing the qualitative behavior of a...

Muller, T.; Rehault, N.; Rist, T.

2013-01-01T23:59:59.000Z

398

Energy Savings Potential and RD&D Opportunities for Residential Building HVAC Systems  

Energy.gov (U.S. Department of Energy (DOE))

This report assesses 135 different heating, ventilation, and air-conditioning (HVAC) technologies for U.S. residential buildings to identify and provide analysis on 19 priority technology options in various stages of development.

399

Building America Whole-House Solutions for Existing Homes: Inverted Attic Bulkhead for HVAC Ductwork  

Energy.gov (U.S. Department of Energy (DOE))

This occupied test home received a modified truss system to accommodate ductwork within an inverted insulated bulkhead along the attic floor, which saves energy by placing heating, ventilating, and air-conditioning (HVAC) ductwork within the home's thermal boundary.

400

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.

Note: This page contains sample records for the topic "furnace gas hvac" 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

DOE Convening Report on Certification of Commercial HVAC and CRE Products  

NLE Websites -- All DOE Office Websites (Extended Search)

Convening Report on Certification of Commercial HVAC and CRE Products, October 2, 2012 Convening Report on Certification of Commercial HVAC and CRE Products, October 2, 2012 1 U.S. DEPARTMENT OF ENERGY CONVENING REPORT ON THE FEASIBILITY OF A NEGOTIATED RULEMAKING TO REVISE THE CERTIFICATION PROGRAM FOR COMMERCIAL HEATING, VENTILATING AIR CONDITIONING AND COMMERCIAL REFRIGERATION EQUIPMENT October 2, 2012 Alan W. Strasser, Esq., MA Convener

402

A Unified and Integrated Energy Management System for HVAC Spaces and Power House  

E-Print Network (OSTI)

A UNIFIED AND INTEGRATED ENERGY MANAGEMENT SYSTEM FOR HVAC SPACES AND POWER HOUSE A.Kaya The University of Akron Mechanical Engineering Akron,OH 44325 ABSTRACT This paper describes a totally integrated energy management system throughout... the plant and facilities. The equipment involves: the power flant (boilers, cogeneration turbines, chillers); HVAC 0 buildings; air handling and other distribution systems. The energy management system has the architecture for data transmission...

Kaya, A.; Debban, G. D.

403

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

404

Produce synthesis gas by steam reforming natural gas  

SciTech Connect

For production of synthesis gas from natural gas the steam reforming process is still the most economical. It generates synthesis gas for ammonia and methanol production as well as hydrogen, oxo gas and town gas. After desulfurization, the natural gas is mixed with steam and fed to the reforming furnace where decomposition of hydrocarbons takes place in the presence of a nickel-containing catalyst. Synthesis gas that must be free of CO and CO/sub 2/ is further treated in a CO shift conversion, a CO/sub 2/ scrubbing unit and a methanation unit. The discussion covers the following topics - reforming furnace; the outlet manifold system; secondary reformer; reformed gas cooling. Many design details of equipment used are given.

Marsch, H.D.; Herbort, H.J.

1982-06-01T23:59:59.000Z

405

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

E-Print Network (OSTI)

looks at the total energy consumption for several efficiencyno difference in the total energy consumption at the samereduction in the total energy consumption. In contrast, the

Lekov, Alex; Franco, Victor; Lutz, James

2006-01-01T23:59:59.000Z

406

Improving the Efficiency of Light-Duty Vehicle HVAC Systems using Zonal Thermoelectric Devices and Comfort Modeling  

Energy.gov (U.S. Department of Energy (DOE))

Summarizes results from a study to identify and demonstrate technical and commercial approaches necessary to accelerate the deployment of zonal TE HVAC systems in light-duty vehicles

407

Software-as-a-Service Optimised Scheduling of a Solar-Assisted HVAC System with Thermal Storage  

E-Print Network (OSTI)

1980, but its thermal solar and storage systems received achiller. A 30 m heat storage tank solar decouples heatfacility with thermal storage and solar- assisted HVAC for

Mammoli, Andrea

2014-01-01T23:59:59.000Z

408

A plug and play framework for an HVAC air handling unit and temperature sensor auto recognition technique.  

E-Print Network (OSTI)

??A plug and play framework for an HVAC air handling unit control system is proposed in this study. This is the foundation and the first… (more)

Zhou, Xiaohui

2010-01-01T23:59:59.000Z

409

Demand Response-Enabled Model Predictive HVAC Load Control in Buildings using Real-Time Electricity Pricing.  

E-Print Network (OSTI)

??A practical cost and energy efficient model predictive control (MPC) strategy is proposed for HVAC load control under dynamic real-time electricity pricing. The MPC strategy… (more)

Avci, Mesut

2013-01-01T23:59:59.000Z

410

System dynamics based models for selecting HVAC systems for office buildings: a life cycle assessment from carbon emissions perspective.  

E-Print Network (OSTI)

??This study aims to explore the life cycle environmental impacts of typical heating ventilation and air condition (HVAC) systems including variable air volume (VAV) system,… (more)

Chen, S

2011-01-01T23:59:59.000Z

411

Optimized Fan Control In Variable Air Volume HVAC Systems Using Static Pressure Resets: Strategy Selection and Savings Analysis.  

E-Print Network (OSTI)

??The potential of static pressure reset (SPR) control to save fan energy in variable air volume HVAC systems has been well documented. Current research has… (more)

Kimla, John

2010-01-01T23:59:59.000Z

412

ComEd, Nicor Gas, Peoples Gas and North Shore Gas - Bonus Rebate Program  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

ComEd, Nicor Gas, Peoples Gas and North Shore Gas - Bonus Rebate ComEd, Nicor Gas, Peoples Gas and North Shore Gas - Bonus Rebate Program (Illinois) ComEd, Nicor Gas, Peoples Gas and North Shore Gas - Bonus Rebate Program (Illinois) < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Heating Maximum Rebate $1,000 Program Info Start Date 01/01/2013 Expiration Date 04/30/2013 State Illinois Program Type Utility Rebate Program Rebate Amount ComEd Rebates Central Air Conditioner Unit 14 SEER or above: $350 Central Air Conditioner Unit Energy Star rated: $500 Nicor Gas, Peoples Gas and North Shore Gas Furnace: $200 - $500 (varies based on gas company and unit installed) Provider ComEd Energy ComEd, Nicor Gas, Peoples Gas and North Shore Gas are offering a Complete System Replacement Rebate Program to residential customers. The program is

413

New Whole-House Solutions Case Study: Imagine Homes, San Antonio...  

Energy Savers (EERE)

every house they build. KEY ENERGY-EFFICIENCY MEASURES HVAC: * 92% AFUE natural gas-fired furnace; 15 SEER split-system AC unit * Sheet metal trunk and R-6 flex duct branches...

414

Vertical feed stick wood fuel burning furnace system  

DOE Patents (OSTI)

A new and improved stove or furnace for efficient combustion of wood fuel including a vertical feed combustion chamber for receiving and supporting wood fuel in a vertical attitude or stack, a major upper portion of the combustion chamber column comprising a water jacket for coupling to a source of water or heat transfer fluid and for convection circulation of the fluid for confining the locus of wood fuel combustion to the bottom of the vertical gravity feed combustion chamber. A flue gas propagation delay channel extending from the laterally directed draft outlet affords delayed travel time in a high temperature environment to assure substantially complete combustion of the gaseous products of wood burning with forced air as an actively induced draft draws the fuel gas and air mixture laterally through the combustion and high temperature zone. Active sources of forced air and induced draft are included, multiple use and circuit couplings for the recovered heat, and construction features in the refractory material substructure and metal component superstructure.

Hill, Richard C. (Orono, ME)

1984-01-01T23:59:59.000Z

415

Vertical feed stick wood fuel burning furnace system  

DOE Patents (OSTI)

A stove or furnace for efficient combustion of wood fuel includes a vertical feed combustion chamber (15) for receiving and supporting wood fuel in a vertical attitude or stack. A major upper portion of the combustion chamber column comprises a water jacket (14) for coupling to a source of water or heat transfer fluid for convection circulation of the fluid. The locus (31) of wood fuel combustion is thereby confined to the refractory base of the combustion chamber. A flue gas propagation delay channel (34) extending laterally from the base of the chamber affords delayed travel time in a high temperature refractory environment sufficient to assure substantially complete combustion of the gaseous products of wood burning with forced air prior to extraction of heat in heat exchanger (16). Induced draft draws the fuel gas and air mixture laterally through the combustion chamber and refractory high temperature zone to the heat exchanger and flue. Also included are active sources of forced air and induced draft, multiple circuit couplings for the recovered heat, and construction features in the refractory material substructure and metal component superstructure.

Hill, Richard C. (Orono, ME)

1982-01-01T23:59:59.000Z

416

Nitrogen oxide emissions from a kraft recovery furnace  

SciTech Connect

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

417

Install Waste Heat Recovery Systems for Fuel-Fired Furnaces  

Energy.gov (U.S. Department of Energy (DOE))

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

418

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

419

Breakthrough Furnace Can Cut Solar Industry Costs (Fact Sheet)  

SciTech Connect

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

420

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

Note: This page contains sample records for the topic "furnace gas hvac" 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

Evaluation of flow capture techniques for measuring HVAC grilleairflows  

SciTech Connect

This paper discusses the accuracy of commercially available flow hoods for residential applications. Results of laboratory and field tests indicate these hoods can be inadequate to measure airflows in residential systems, and there can be large measurement discrepancies between different flow hoods. The errors are due to poor calibrations, sensitivity of the hoods to grille airflow non-uniformities, and flow changes from added flow resistance. It is possible to obtain reasonable results using some flow hoods if the field tests are carefully done, the grilles are appropriate, and grille location does not restrict flow hood placement. We also evaluated several simple flow capture techniques for measuring grille airflows that could be adopted by the HVAC industry and homeowners as simple diagnostics. These simple techniques can be as accurate as commercially available devices. Our test results also show that current calibration procedures for flow hoods do not account for field application problems. As a result, agencies such as ASHRAE or ASTM need to develop a new standard for flow hood calibration, along with a new measurement standard to address field use of flow capture techniques.

Walker, Iain S.; Wray, Craig P.

2002-11-01T23:59:59.000Z

422

Deposition of biological aerosols on HVAC heat exchangers  

SciTech Connect

Many biologically active materials are transported as bioaerosols 1-10 {micro}m in diameter. These particles can deposit on cooling and heating coils and lead to serious indoor air quality problems. This paper investigates several of the mechanisms that lead to aerosol deposition on fin and tube heat exchangers. A model has been developed that incorporates the effects of several deposition mechanisms, including impaction, Brownian and turbulent diffusion, turbophoresis, thermophoresis, diffusiophoresis, and gravitational settling. The model is applied to a typical range of air velocities that are found in commercial and residential HVAC systems 1 - 6 m/s (200 - 1200 ft/min), particle diameters from 1 - 8 {micro}m, and fin spacings from 3.2 - 7.9 fins/cm (8 - 16 fins/inch or FPI). The results from the model are compared to results from an experimental apparatus that directly measures deposition on a 4.7 fins/cm (12 FPI) coil. The model agrees reasonably well with this measured data and suggests that cooling coils are an important sink for biological aerosols and consequently a potential source of indoor air quality problems.

Siegel, Jeffrey; Walker, Ian

2001-09-01T23:59:59.000Z

423

A new modelling methodology to control HVAC systems  

Science Journals Connector (OSTI)

Thermal comfort plays an important role in any working environment, but it is a very vague term and it is also very difficult to represent it on modern computers. Its proper definition could be a condition of the mind which expresses satisfaction with the thermal environment and, therefore, it depends on the individual’s physiology and psychology. Several researchers have investigated the relationships between room conditions and thermal comfort. Generally speaking, statistical approaches had been used whereas fuzzy and neural approaches have been recently proposed. In this work it is proposed a new thermal comfort model based on the P.O. Fanger PMV index according to the Institute of the University of Kansas and it has been adapted to a specific indoor ambience with a thermal comfort logger. The results showed that this methodology puts forward an adequate accuracy and suggests temperatures according to the present HVAC standards and those adaptive models show adequate values for thermal neutralities even though they are not suitable for energy saving due to its static value on a daily basis.

José A. Orosa

2011-01-01T23:59:59.000Z

424

Outdoor airflow into HVAC systems: An evaluation of measurement technologies  

SciTech Connect

During the last few years, new technologies have been introduced for measuring the flow rates of outdoor air (OA) into HVAC systems; however, an evaluation of these measurement technologies has not previously been published. This document describes a test system and protocols developed for controlled evaluation of these measurement technologies. The results of tests of three measurement technologies are also summarized. The test system and protocol were judged practical and very useful. The test results indicate that one measurement technology can measure OA flow rates with errors of 20% or less without a field-based calibration, as long as the OA velocities are sufficient to provide an accurately measurable pressure signal. The test results for a second measurement technology are similar; however, a difficult field-based calibration relating the OA flow rate with the pressure signal would be required to reduce errors below approximately 30%. The errors in OA flow rates measured with the third measurement technology, that uses six electronic airspeed sensors downstream of the OA inlet louver, exceeded 100%; however, these errors could be substantially reduced through a difficult field based calibration. The effects of wind on the accuracy of these measurement technologies still needs to be evaluated.

Fisk, William J.; Faulkner, David; Sullivan, Douglas P.; Delp, Woody

2003-09-01T23:59:59.000Z

425

Compression effects on pressure loss in flexible HVAC ducts  

SciTech Connect

A study was conducted to evaluate the effect of compression on pressure drop in flexible, spiral wire helix core ducts used in residential and light commercial applications. Ducts of 6 inches, 8 inches and 10 inches (150, 200 and 250 mm) nominal diameters were tested under different compression configurations following ASHRAE Standard 120-1999--Methods of Testing to Determine Flow Resistance of HVAC Air Ducts and Fittings. The results showed that the available published references tend to underestimate the effects of compression. The study demonstrated that moderate compression in flexible ducts, typical of that often seen in field installations, could increase the pressure drop by a factor of four, while further compression could increase the pressure drop by factors close to ten. The results proved that the pressure drop correction factor for compressed ducts cannot be independent of the duct size, as suggested by ASHRAE Fundamentals, and therefore a new relationship was developed for better quantification of the pressure drop in flexible ducts. This study also suggests potential improvements to ASHRAE Standard 120-1999 and provides new data for duct design.

Abushakra, Bass; Walker, Iain S.; Sherman, Max H.

2002-07-01T23:59:59.000Z

426

Evaluation of HVAC filters as a sampling mechanism for indoor microbial communities  

Science Journals Connector (OSTI)

HVAC filters are in place for extended periods of time and can serve as integrated air samplers. This paper presents a comparison of bacterial and fungal concentrations and communities in HVAC filter dust and other sampling locations in occupied residences and in the unoccupied \\{UTest\\} House. A DNA-based, culture-independent approach was utilized to characterize the microbial communities. Microbial concentrations and communities in HVAC filter dust samples were not statistically different from those in high surface dust samples in occupied homes. Despite the general similarity in the communities, Proteobacteria were present in greater proportion in HVAC filter dust samples than in surface dust samples suggesting the air origin of this phylum. Gram-positive bacteria were present in greater proportion in occupied residences than in an unoccupied test house, confirming the potential association of this group with occupants. HVAC filter microbial communities were not different from those present in a composited month-long indoor air sample providing preliminary evidence that filters could be a viable option for long-term investigation of airborne biological contaminants.

Federico Noris; Jeffrey A. Siegel; Kerry A. Kinney

2011-01-01T23:59:59.000Z

427

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

428

High-Speed Internet Access via HVAC Ducts: A New Approach Daniel D. Stancil, Ozan K. Tonguz, Ariton Xhafa, Ahmet Cepni, and Pavel Nikitin  

E-Print Network (OSTI)

High-Speed Internet Access via HVAC Ducts: A New Approach Daniel D. Stancil, Ozan K. Tonguz, Ariton conditioning (HVAC) ducts for indoor wireless transmission systems and networks. Mea- surements and system to 100 Mbps should be possible, when HVAC system is used in con- junction with OFDM technology. Keywords

Stancil, Daniel D.

429

This paper has been downloaded from the Building and Environmental Thermal Systems Research Group at Oklahoma State University (www.hvac.okstate.edu)  

E-Print Network (OSTI)

at Oklahoma State University (www.hvac.okstate.edu) The correct citation for the paper is: Rees, S.J., J cooling loads is of critical concern to designers of HVAC systems. The work reported here has been carried of the HVAC industry worldwide would be improved if common methods of performing key design calculations were

Ghajar, Afshin J.

430

Cooperative Control of Air Flow for HVAC Systems Shuai Liu1,2, Yushen Long1, Lihua Xie1 and Alexandre M. Bayen3  

E-Print Network (OSTI)

Cooperative Control of Air Flow for HVAC Systems Shuai Liu1,2, Yushen Long1, Lihua Xie1 for building heating, ven- tilation and air-conditioning (HVAC) systems. The strategy consists in two level and the HVAC system parameters. I. INTRODUCTION In recent years, energy saving and environment protection have

431

Logue and Singer, HVAC&R, 20(2): 264-275, 2014. Energy Impacts of Effective Residential Range Hood Use, LBNL-6683E Page 1  

E-Print Network (OSTI)

Logue and Singer, HVAC&R, 20(2): 264-275, 2014. Energy Impacts of Effective Residential Range Hood and Singer, HVAC&R, 20(2): 264-275, 2014. Energy Impacts of Effective Residential Range Hood Use, LBNL-6683E Laboratory is an equal opportunity employer. #12;Logue and Singer, HVAC&R, 20(2): 264-275, 2014. Energy

432

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 51, NO. 5, MAY 2003 945 Propagation Model for the HVAC Duct as a  

E-Print Network (OSTI)

for the HVAC Duct as a Communication Channel Pavel V. Nikitin, Member, IEEE, Daniel D. Stancil, Senior Member (HVAC) ducts in buildings are typically hollow metal pipes which can be used as waveguides to carry such a communication system. This paper presents a propagation model for a straight HVAC duct terminated at both ends

Stancil, Daniel D.

433

A Simple Path Loss Prediction Model for HVAC Systems O. K. Tonguz, D. D. Stancil, A. E. Xhafa, A. G. Cepni, P. V. Nikitin  

E-Print Network (OSTI)

1 A Simple Path Loss Prediction Model for HVAC Systems O. K. Tonguz, D. D. Stancil, A. E. Xhafa, A, and air conditioning (HVAC) cylindrical ducts in 2.4-2.5 GHz frequency band. The model we propose predicts the average power loss between a transmitter-receiver pair in an HVAC duct network. This prediction model

Stancil, Daniel D.

434

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

435

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

436

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

NLE Websites -- All DOE Office Websites (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...

437

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

438

Critical Question #4: What are the Best Off-the-Shelf HVAC Solutions for  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Critical Question #4: What are the Best Off-the-Shelf HVAC Critical Question #4: What are the Best Off-the-Shelf HVAC Solutions for Low-Load, High-Performance Homes and Apartments? Critical Question #4: What are the Best Off-the-Shelf HVAC Solutions for Low-Load, High-Performance Homes and Apartments? What is currently in the market? What are the limitations of these systems? What are the desired specifications for these systems? What are the realistic space conditioning loads of these high-performance homes and apartments? cq4_forced_air_systems_walker.pdf cq4_simplified_space_cond_prahl.pdf cq4_ground_heat_exchanger_im.pdf More Documents & Publications Track C - Market-Driven Research Solutions Track B - Critical Guidance for Peak Performance Homes Energy Storage & Power Electronics 2008 Peer Review - Power Electronics

439

HVAC vs. Space Heaters: Which is More Efficient? | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

HVAC vs. Space Heaters: Which is More Efficient? HVAC vs. Space Heaters: Which is More Efficient? HVAC vs. Space Heaters: Which is More Efficient? January 10, 2011 - 4:27pm Addthis Andrea Spikes Communicator at DOE's National Renewable Energy Laboratory I live in Colorado, and when it's cold it is very, very cold. Since I hate paying high heating bills, I typically have my thermostat set to a chilly 62°F. My husband and I have gotten used to this, and really like being able to use a warm comforter while the air stays cooler. There are some nights, however, that even this setting seems too high and the heater is running a lot more than I'd like it to. When it's below 0° overnight, or even sometimes during the day, we occasionally break out our oil-filled space heater when we're only using one room. That has me

440

HVAC vs. Space Heaters: Which is More Efficient? | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

HVAC vs. Space Heaters: Which is More Efficient? HVAC vs. Space Heaters: Which is More Efficient? HVAC vs. Space Heaters: Which is More Efficient? January 10, 2011 - 4:27pm Addthis Andrea Spikes Communicator at DOE's National Renewable Energy Laboratory I live in Colorado, and when it's cold it is very, very cold. Since I hate paying high heating bills, I typically have my thermostat set to a chilly 62°F. My husband and I have gotten used to this, and really like being able to use a warm comforter while the air stays cooler. There are some nights, however, that even this setting seems too high and the heater is running a lot more than I'd like it to. When it's below 0° overnight, or even sometimes during the day, we occasionally break out our oil-filled space heater when we're only using one room. That has me

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441

Multi-objective optimization of HVAC system with an evolutionary computation algorithm  

Science Journals Connector (OSTI)

A data-mining approach for the optimization of a HVAC (heating, ventilation, and air conditioning) system is presented. A predictive model of the HVAC system is derived by data-mining algorithms, using a dataset collected from an experiment conducted at a research facility. To minimize the energy while maintaining the corresponding IAQ (indoor air quality) within a user-defined range, a multi-objective optimization model is developed. The solutions of this model are set points of the control system derived with an evolutionary computation algorithm. The controllable input variables — supply air temperature and supply air duct static pressure set points — are generated to reduce the energy use. The results produced by the evolutionary computation algorithm show that the control strategy saves energy by optimizing operations of an HVAC system.

Andrew Kusiak; Fan Tang; Guanglin Xu

2011-01-01T23:59:59.000Z

442

Survival of bioaerosols in HVAC system photocatalytic filters  

Science Journals Connector (OSTI)

Abstract The survival of an experimental bioaerosol in photocatalytic and non-photocatalytic filters was investigated under UV-A or UV-C radiation exposure. To ensure the generation of reproducible bioaerosols in real operating conditions of Heating, Ventilation and Air Conditioning (HVAC) systems and their homogeneous coating on filters, a reactor with an optimal geometry was developed. The bacterial aerosol was generated from standardised bacterial suspensions and the Gram-negative bacterial model Escherichia coli was used as the experimental organism. The bioaerosol was characterised in terms of particle size distribution, reproducibility and stability over time. The coating of aerosolised cells on the filters was then studied. The total number of aerosolised E. coli cells was different from the amount of cultivable bacterial cells extracted from filters, probably resulting from the stress of the aerosolisation process. Damages to the outer membrane of E. coli cells were clearly observed through SEM and epifluorescent microscopy analysis. The influence of important physical parameters in the reactor-aerosolisation duration, frontal velocity and relative humidity- on the amount of aerosolised cells coated on filters were also investigated. Finally, the effects of UV-A or UV-C radiation were assessed on aerosolised microorganisms coated on HEPA photocatalytic filters and on photocatalytic or non-photocatalytic filters containing activated charcoal. The HEPA photocatalytic filters demonstrated a better disinfection efficiency with full damages of the aerosolised bacterial cells, probably resulting from an optimal contact between TiO2 coating and the microorganisms. In contrast, the use of filters with activated charcoal resulted in the apparition of an inactivation threshold that could be attributed to the penetration of aerosolised cells within the activated charcoal layer and the absence of contact with the photocatalyst. However, UV-C photocatalysis was able to inactivate faster and, at the same time, mineralise biological pollutants than UV-A.

S. Pigeot-Remy; J.C. Lazzaroni; F. Simonet; P. Petinga; C. Vallet; P. Petit; P.J. Vialle; C. Guillard

2014-01-01T23:59:59.000Z

443

Investigation of lignite and firewood co-combustion in a furnace for tobacco curing application  

SciTech Connect

Co-combustion of lignite and firewood was investigated for an application in tobacco curing industry in Northern Thailand. Extensive experiments have been carried out in a newly developed furnace suitable for small curing unit, in place of locally made furnace. The aim of this investigation is to evaluate the performance of the combustion chamber in the required thermal output range for tobacco curing and to examine the influence of fuel feed rate, fuel mixture ratio and air staging on the combustion and emission characteristics of the furnace during steady state operation. Their effects are characterized in terms of the observed variations of temperature distributions, emissions of CO, SO{sub 2}, CO{sub 2}, O{sub 2} and combustion efficiency. Co-firing of firewood and lignite has been found to exhibit acceptable temperature distribution, high combustion efficiency and low emissions over a wide thermal output span. Stable operation at low (50 kW) and high (150 kW) thermal output was achieved with average CO and SO{sub 2} content in flue gas typically below 1400 and 100 ppm, respectively. Under the conditions considered, it was showed that the fuel feed rate had greater influence on combustion and emissions than firewood and lignite mixture ratio and air staging.

Nakorn Tippayawong; Chutchawan Tantakitti; Satis Thavornun

2006-07-01T23:59:59.000Z

444

ALTERNATE REDUCTANT COLD CAP EVALUATION FURNACE PHASE I TESTING  

SciTech Connect

Savannah River Remediation (SRR) conducted a Systems Engineering Evaluation (SEE) to determine the optimum alternate reductant flowsheet for the Defense Waste Processing Facility (DWPF). Specifically, two proposed flowsheets (nitric–formic–glycolic and nitric–formic–sugar) were evaluated based upon results from preliminary testing. Comparison of the two flowsheets among evaluation criteria indicated a preference towards the nitric–formic–glycolic flowsheet. Further evaluation of this flowsheet eliminated the formic acid1, and as a result, the nitric–glycolic flowsheet was recommended for further testing. Based on the development of a roadmap for the nitric–glycolic acid flowsheet, Waste Solidification Engineering (WS-E) issued a Technical Task Request (TTR) to address flammability issues that may impact the implementation of this flowsheet. Melter testing was requested in order to define the DWPF flammability envelope for the nitric glycolic acid flowsheet. The Savannah River National Laboratory (SRNL) Cold Cap Evaluation Furnace (CEF), a 1/12th scale DWPF melter, was selected by the SRR Alternate Reductant project team as the melter platform for this testing. The overall scope was divided into the following sub-tasks as discussed in the Task Technical and Quality Assurance Plan (TTQAP): ? Phase I - A nitric–formic acid flowsheet melter test (unbubbled) to baseline the Cold Cap Evaluation Furnace (CEF) cold cap and vapor space data to the benchmark melter flammability models ? Phase II - A nitric–glycolic acid flowsheet melter test (unbubbled and bubbled) to: o Define new cold cap reactions and global kinetic parameters for the melter flammability models o Quantify off-gas surging potential of the feed o Characterize off-gas condensate for complete organic and inorganic carbon species Prior to startup, a number of improvements and modifications were made to the CEF, including addition of cameras, vessel support temperature measurement, and a heating element near the pour tube. After charging the CEF with cullet from a previous Sludge Batch 6 (SB6) run, the melter was slurry-fed with SB6-Frit 418 melter feed at 36% waste loading and was operated continuously for 6 days. Process data was collected throughout testing and included melter operation variables and off-gas chemistry. In order to satisfy the objective of Phase I testing, vapor space steady testing in the range of ~300°C-700°C was conducted without argon bubbling to baseline the melter data to the existing DWPF melter flammability model. Adjustments to heater outputs, air flows and feed rate were necessary in order to achieve the vapor space temperatures in this range. The results of the Phase I testing demonstrated that the CEF is capable of operating under the low vapor space temperatures A melter pressure of -5 inches of water was not sustained throughout the run, but the melter did remain slightly negative even with the maximum air flows required for the lowest temperature conditions were used. The auxiliary pour tube heater improved the pouring behavior at all test conditions, including reduced feed rates required for the low vapor space testing. Argon bubbling can be used to promote mixing and increase feed rate at multiple conditions. Improvements due to bubbling have been determined previously; however, the addition of the cameras to the CEF allows for visual observation during a range of bubbling configurations. The off-gas analysis system proved to be robust and capable of operating for long durations. The total operational hours on the melter vessel are approximately 385 hours. Dimensional measurements taken prior to Phase I testing and support block temperatures recorded during Phase I testing are available if an extension of service life beyond 1250 hours is desired in the future.

Johnson, F.; Miller, D.; Zamecnik, J.; Lambert, D.

2014-04-22T23:59:59.000Z

445

ALTERNATE REDUCTANT COLD CAP EVALUATION FURNACE PHASE II TESTING  

SciTech Connect

Savannah River Remediation (SRR) conducted a Systems Engineering Evaluation (SEE) to determine the optimum alternate reductant flowsheet for the Defense Waste Processing Facility (DWPF). Specifically, two proposed flowsheets (nitric–formic–glycolic and nitric–formic–sugar) were evaluated based upon results from preliminary testing. Comparison of the two flowsheets among evaluation criteria indicated a preference towards the nitric–formic–glycolic flowsheet. Further research and development of this flowsheet eliminated the formic acid, and as a result, the nitric–glycolic flowsheet was recommended for further testing. Based on the development of a roadmap for the nitric–glycolic acid flowsheet, Waste Solidification Engineering (WS-E) issued a Technical Task Request (TTR) to address flammability issues that may impact the implementation of this flowsheet. Melter testing was requested in order to define the DWPF flammability envelope for the nitric-glycolic acid flowsheet. The Savannah River National Laboratory (SRNL) Cold Cap Evaluation Furnace (CEF), a 1/12th scale DWPF melter, was selected by the SRR Alternate Reductant project team as the melter platform for this testing. The overall scope was divided into the following sub-tasks as discussed in the Task Technical and Quality Assurance Plan (TTQAP): ? Phase I - A nitric–formic acid flowsheet melter test (unbubbled) to baseline the CEF cold cap and vapor space data to the benchmark melter flammability models; ? Phase II - A nitric–glycolic acid flowsheet melter test (unbubbled and bubbled) to: o Define new cold cap reactions and global kinetic parameters in support of the melter flammability model development; o Quantify off-gas surging potential of the feed; o Characterize off-gas condensate for complete organic and inorganic carbon species. After charging the CEF with cullet from Phase I CEF testing, the melter was slurry-fed with glycolic flowsheet based SB6-Frit 418 melter feed at 36% waste loading and was operated continuously for 25 days. Process data was collected throughout testing and included melter operation parameters and off-gas chemistry. In order to generate off-gas data in support of the flammability model development for the nitric-glycolic flowsheet, vapor space steady state testing in the range of ~300-750°C was conducted under the following conditions, (i) 100% (nominal and excess antifoam levels) and 125% stoichiometry feed and (ii) with and without argon bubbling. Adjustments to feed rate, heater outputs and purge air flow were necessary in order to achieve vapor space temperatures in this range. Surge testing was also completed under nominal conditions for four days with argon bubbling and one day without argon bubbling.

Johnson, F.; Stone, M.; Miller, D.

2014-09-03T23:59:59.000Z

446

A Natural-Gas-Fired Thermoelectric Power Generation System  

Science Journals Connector (OSTI)

This paper presents a combustion-driven thermoelectric power generation system that uses PbSnTe-based thermoelectric modules. The modules were integrated into a gas-fired furnace with a special burner design. The...

K. Qiu; A.C.S. Hayden

2009-07-01T23:59:59.000Z

447

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

SciTech Connect

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

448

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

449

Pre-Commercial Demonstration of Cost-Effective Advanced HVAC Controls- 2014 BTO Peer Review  

Energy.gov (U.S. Department of Energy (DOE))

Presenter: Hayden Reeve, United Technologies Research Center Optimal control coordination of heating, ventilation, and air conditioning (HVAC) equipment can reduce energy by more than 20% over current building automation systems (BASs) but is not widely deployed due to challenges with complexity, scalability, and deployment.

450

2014-04-28 Issuance: Certification of Commercial HVAC, Water Heating, and Refrigeration Equipment; Final Rule  

Energy.gov (U.S. Department of Energy (DOE))

This document is a pre-publication Federal Register final rule regarding the certification of commercial heating, ventilation, and air-conditioning (HVAC), water heating (WH), and refrigeration (CRE) equipment, as issued by the Deputy Assistant Secretary for Energy Efficiency on April 28, 2014.

451

Estimates of HVAC filtration efficiency for fine and ultrafine particles of outdoor origin  

Science Journals Connector (OSTI)

Abstract This work uses 194 outdoor particle size distributions (PSDs) from the literature to estimate single-pass heating, ventilating, and air-conditioning (HVAC) filter removal efficiencies for PM2.5 and ultrafine particles (UFPs: HVAC filters identified in the literature. Filters included those with a minimum efficiency reporting value (MERV) of 5, 6, 7, 8, 10, 12, 14, and 16, as well as HEPA filters. We demonstrate that although the MERV metric defined in ASHRAE Standard 52.2 does not explicitly account for UFP or PM2.5 removal efficiency, estimates of filtration efficiency for both size fractions increased with increasing MERV. Our results also indicate that outdoor PSD characteristics and assumptions for particle density and typical size-resolved infiltration factors (in the absence of HVAC filtration) do not drastically impact estimates of HVAC filter removal efficiencies for PM2.5. The impact of these factors is greater for UFPs; however, they are also somewhat predictable. Despite these findings, our results also suggest that MERV alone cannot always be used to predict UFP or PM2.5 removal efficiency given the various size-resolved removal efficiencies of different makes and models, particularly for MERV 7 and MERV 12 filters. This information improves knowledge of how the MERV designation relates to PM2.5 and UFP removal efficiency for indoor particles of outdoor origin. Results can be used to simplify indoor air quality modeling efforts and inform standards and guidelines.

Parham Azimi; Dan Zhao; Brent Stephens

2014-01-01T23:59:59.000Z

452

IFC HVAC interface to EnergyPlus - A case of expanded interoperability for energy simulation  

SciTech Connect

Tedious manual input of data that define a building, its systems and its expected pattern of use and operating schedules for building energy performance simulation has in the past diverted time and resources from productive simulation runs. In addition to its previously released IFCtoIDF utility that semiautomates the import of building geometry, the new IFC HVAC interface to EnergyPlus (released at the end of 2003) makes it possible to import and export most of the data that define HVAC equipment and systems in a building directly from and to other IFC compatible software tools. This reduces the manual input of other data needed for successful simulation with EnergyPlus to a minimum. The main purpose of this new interface is to enable import of HVAC equipment and systems definitions, generated by other IFC compatible software tools (such as HVAC systems design tools) and data bases, into EnergyPlus, and to write such definitions contained in EnergyPlus input files to the original IFC files from which building geometry was extracted for the particular EnergyPlus input. In addition, this interface sets an example for developers of other software tools how to import and/or export data other than building geometry from and/or into EnergyPlus. This paper describes the necessary simplifications and shortcuts incorporated in this interface, its operating environment, interface architecture, and the basic conditions and methodology for its use with EnergyPlus.

Bazjanac, Vladimir; Maile, Tobias

2004-03-29T23:59:59.000Z

453

Building America Expert Meeting: Transitioning Traditional HVAC Contractors to Whole House Performance Contractors  

Energy.gov (U.S. Department of Energy (DOE))

This report outlines findings resulting from a U.S. Department of Energy Building America expert meeting held on March 29, 2011 by IBACOS to determine how HVAC companies can transition from a traditional contractor status to a service provider for whole house energy upgrade contracting.

454

Modeling and Measurement Constraints in Fault Diagnostics for HVAC Systems Massieh Najafi1  

E-Print Network (OSTI)

of the building's air conditioning units from reaching occupied spaces, so this unit's energy is simply wastedModeling and Measurement Constraints in Fault Diagnostics for HVAC Systems Massieh Najafi1 , David, Lawrence Berkeley National Laboratory, mdsohn@lbl.gov ABSTRACT Many studies have shown that energy savings

455

Particle loading rates for HVAC filters, heat exchangers, and ducts Nomenclature  

E-Print Network (OSTI)

Particle loading rates for HVAC filters, heat exchangers, and ducts Nomenclature Afl surface area of floor (m2 ) bf fraction of bypass flow around the filter (dimensionless) Cout outdoor concentration on the filter per volume of air (mg/lm m3 ) Mf,tot total mass deposited on the filter per month of operation (g

Siegel, Jeffrey

456

VOLUME 11, NUMBER 2 HVAC&R RESEARCH APRIL 2005 An Optimization-Based Approach for  

E-Print Network (OSTI)

of energy consumption, and human comfort requirements. This paper presents a daily energy management in view of rising energy costs, the government mandate on reduction of energy consumption (Capehart et al requirements. A major portion of energy consumption of a building comes from HVAC units. For example

Luh, Peter

457

Department of Energy and Mineral Engineering Spring 2013 Solar Innovations -HVAC and Waste Stream Analysis  

E-Print Network (OSTI)

included providing accurate floor plans and improve the system for improvement in indoor air qualityPENNSTATE Department of Energy and Mineral Engineering Spring 2013 Solar Innovations - HVAC areas and indoor air quality is below satisfactory. The waste stream was to be analysed to assess

Demirel, Melik C.

458

TRP0033 - PCI Coal Combustion Behavior and Residual Coal Char Carryover in the Blast Furnace of 3 American Steel Companies during Pulverized Coal Injection (PCI) at High Rates  

SciTech Connect

Combustion behavior of pulverized coals (PC), gasification and thermal annealing of cokes were investigated under controlled environments. Physical and chemical properties of PCI, coke and carbon residues of blast furnace dust/sludge samples were characterized. The strong influence of carbon structure and minerals on PCI reactivity was demonstrated. A technique to characterize char carryover in off gas emissions was established.

Veena Sahajwalla; Sushil Gupta

2005-04-15T23:59:59.000Z

459

Questar Gas - Home Builder Gas Appliance Rebate Program | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Questar Gas - Home Builder Gas Appliance Rebate Program Questar Gas - Home Builder Gas Appliance Rebate Program Questar Gas - Home Builder Gas Appliance Rebate Program < Back Eligibility Construction Multi-Family Residential Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heating Home Weatherization Construction Commercial Weatherization Design & Remodeling Appliances & Electronics Water Heating Program Info State Utah Program Type Utility Rebate Program Rebate Amount Exterior Wall Insulation: $350 (single family), $150 (multifamily) Windows: $2.50/sq. ft. Gas Furnace: $200 - $400 Gas Storage Water Heater: $50-$100 Gas Condensing Water Heater: $350 Gas Boiler: $400 -$600 Tankless Gas Water Heater: $350 Single Family Homes (New Construction): $50 - $500 Multifamily Homes (New Construction): $50 - $300/unit

460

Legendary West Virginia Senior Citizen Stays Warm With New Furnace |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

Note: This page contains sample records for the topic "furnace gas hvac" 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

Oil-Fired Boilers and Furnaces | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

462

Oil-Fired Boilers and Furnaces | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

463

DOE Increases Energy Efficiency Standards for Residential Furnaces &  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

464

DOE Increases Energy Efficiency Standards for Residential Furnaces &  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

465

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

466

Voltage flicker prediction for two simultaneously operated ac arc furnaces  

SciTech Connect

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

467

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...

468

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

469

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

470

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...

471

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

472

Waste Heat Recovery from High Temperature Off-Gases from Electric Arc Furnace  

SciTech Connect

This article presents a study and review of available waste heat in high temperature Electric Arc Furnace (EAF) off gases and heat recovery techniques/methods from these gases. It gives details of the quality and quantity of the sensible and chemical waste heat in typical EAF off gases, energy savings potential by recovering part of this heat, a comprehensive review of currently used waste heat recovery methods and potential for use of advanced designs to achieve a much higher level of heat recovery including scrap preheating, steam production and electric power generation. Based on our preliminary analysis, currently, for all electric arc furnaces used in the US steel industry, the energy savings potential is equivalent to approximately 31 trillion Btu per year or 32.7 peta Joules per year (approximately $182 million US dollars/year). This article describes the EAF off-gas enthalpy model developed at Oak Ridge National Laboratory (ORNL) to calculate available and recoverable heat energy for a given stream of exhaust gases coming out of one or multiple EAF furnaces. This Excel based model calculates sensible and chemical enthalpy of the EAF off-gases during tap to tap time accounting for variation in quantity and quality of off gases. The model can be used to estimate energy saved through scrap preheating and other possible uses such as steam generation and electric power generation using off gas waste heat. This article includes a review of the historical development of existing waste heat recovery methods, their operations, and advantages/limitations of these methods. This paper also describes a program to develop and test advanced concepts for scrap preheating, steam production and electricity generation through use of waste heat recovery from the chemical and sensible heat contained in the EAF off gases with addition of minimum amount of dilution or cooling air upstream of pollution control equipment such as bag houses.

Nimbalkar, Sachin U [ORNL; Thekdi, Arvind [E3M Inc; Keiser, James R [ORNL; Storey, John Morse [ORNL

2014-01-01T23:59:59.000Z

473

Montana-Dakota Utilities (Gas) - Residential Energy Efficiency Rebate  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Montana-Dakota Utilities (Gas) - Residential Energy Efficiency Montana-Dakota Utilities (Gas) - Residential Energy Efficiency Rebate Program Montana-Dakota Utilities (Gas) - Residential Energy Efficiency Rebate Program < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heating Appliances & Electronics Water Heating Maximum Rebate Programmable Thermostat: 1 per address Program Info State South Dakota Program Type Utility Rebate Program Rebate Amount Furnace: $150 - $300 Programmable Thermostat: $20 Natural Gas Water Heater: $50 - $100 Provider Montana-Dakota Utilities Co. Montana-Dakota Utilities (MDU) offers several residential rebates on energy efficient measures and natural gas equipment. New furnaces, water heaters and programmable thermostats are eligible for a rebate incentive if the

474

Norwich Public Utilities (Gas) - Residential Energy Efficiency Rebate  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Norwich Public Utilities (Gas) - Residential Energy Efficiency Norwich Public Utilities (Gas) - Residential Energy Efficiency Rebate Program Norwich Public Utilities (Gas) - Residential Energy Efficiency Rebate Program < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heating Appliances & Electronics Water Heating Program Info State Connecticut Program Type Utility Rebate Program Rebate Amount Furnaces: $400 Boilers: $600 Tankless Boiler/Water Heater Combined: $850 - $1050 Indirect Fired/Tankless Water Heaters: $250 - $450 Provider Norwich Public Utilities Norwich Public Utilities (NPU) provides residential natural gas customers rebates for upgrading to energy efficient equipment in eligible homes. NPU offers rebates of between $250 - $1050 for natural gas furnaces, boilers,

475

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

SciTech Connect

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

476

Residential commissioning to assess envelope and HVAC system performance  

SciTech Connect

Houses do not perform optimally or even as many codes and forecasts predict. For example, Walker et al. (1998a) found large variations in thermal distribution system efficiency, as much as a factor of two even between side-by-side houses with the same system design and installation crew. This and other studies (e.g., Jump et al. 1996) indicate that duct leakage testing and sealing can readily achieve a 25 to 30% reduction in installed cooling capacity and energy consumption. As another example, consider that the building industry has recognized for at least 20 years the substantial impact that envelope airtightness has on thermal loads, energy use, comfort, and indoor air quality. However, Walker et al. (1998a) found 50% variances in airtightness for houses with the same design and construction crews, within the same subdivision. A substantial reason for these problems is that few houses are now built or retrofitted using formal design procedures, most are field assembled from a large number of components, and there is no consistent process to identify problems or to correct them. Solving the problems requires field performance evaluations of houses using appropriate and agreed upon procedures. Many procedural elements already exist in a fragmented environment; some are ready now to be integrated into a new process called residential commissioning (Wray et al. 2000). For example, California's Title 24 energy code already provides some commissioning elements for evaluating the energy performance of new houses. A house consists of components and systems that need to be commissioned, such as building envelopes, air distribution systems, cooling equipment, heat pumps, combustion appliances, controls, and other electrical appliances. For simplicity and practicality, these components and systems are usually evaluated individually, but we need to bear in mind that many of them interact. Therefore, commissioning must not only identify the energy and non-energy benefits associated with improving the performance of a component, it must also indicate how individual components interact in the complete building system. For this paper, we limit our discussion to diagnostics in areas of particular concern with significant interactions: envelope and HVAC systems. These areas include insulation quality, windows, airtightness, envelope moisture, fan and duct system airflows, duct leakage, cooling equipment charge, and combustion appliance backdrafting with spillage. The remainder of this paper first describes what residential commissioning is, its characteristic elements, and how one might structure its process. Subsequent sections describe a consolidated set of practical diagnostics that the building industry can use now. Where possible, we also discuss the accuracy and usability of these diagnostics, based on recent laboratory work and field studies. We conclude by describing areas in need of research and development, such as practical field diagnostics for envelope thermal conductance and combustion safety. There are several potential benefits for builders, consumers, code officials, utilities, and energy planners of commissioning houses using a consistent set of validated methods. Builders and/or commissioning agents will be able to optimize system performance and reduce consumer costs associated with building energy use. Consumers will be more likely to get what they paid for and builders can show they delivered what was expected. Code officials will be better able to enforce existing and future energy codes. As energy reduction measures are more effectively incorporated into the housing stock, utilities and energy planners will benefit through greater confidence in predicting demand and greater assurance that demand reductions will actually occur. Performance improvements will also reduce emissions from electricity generating plants and residential combustion equipment. Research to characterize these benefits is underway.

Wray, Craig P.; Sherman, Max H.

2001-08-31T23:59:59.000Z

477

Building America Whole-House Solutions for New Homes: HVAC Design Strategy for a Hot-Humid Production Builder  

Energy.gov (U.S. Department of Energy (DOE))

In this project, BSC worked with the builder to develop a cost-effective design for moving the HVAC system into conditioned space and increase the energy performance of future production houses in anticipation of 2015 IECC codes.

478

Detection and diagnosis of faults and energy monitoring of HVAC systems with least-intrusive power analysis  

E-Print Network (OSTI)

Faults indicate degradation or sudden failure of equipment in a system. Widely existing in heating, ventilating, and air conditioning (HVAC) systems, faults always lead to inefficient energy consumption, undesirable indoor ...

Luo, Dong, 1966-

2001-01-01T23:59:59.000Z

479

Integrated Ice Storage/Sprinkler HVAC System Sharply Cuts Energy Costs and Air-Distribution First Costs  

E-Print Network (OSTI)

Integrated ice thermal storage/sprinkler HVAC systems developed and applied by the author in several commercial applications shift a major portion of electric utility demand to cheaper off-peak hours, while also reducing significantly the first cost...

Meckler, G.

1986-01-01T23:59:59.000Z

480

Software-as-a-Service Optimised Scheduling of a Solar-Assisted HVAC System with Thermal Storage  

E-Print Network (OSTI)

performance of a solar-thermal- assisted hvac system. Energyfor rows of fixed solar thermal collectors using flatassisted by a 232 m solar thermal array providing heat to a

Mammoli, Andrea

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "furnace gas hvac" 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.


481

Proceedings of Healthy Buildings 2009 Paper 680 Do forced air HVAC systems have a role in healthy homes?  

E-Print Network (OSTI)

Proceedings of Healthy Buildings 2009 Paper 680 Do forced air HVAC systems have a role in healthy-extreme weather conditions. #12;Proceedings of Healthy Buildings 2009 Paper 680 Thus, a central forced air

Siegel, Jeffrey

482

Proceedings of Healthy Buildings 2009 Paper 474 Impacts of HVAC Filtration on Air-Conditioner Energy Consumption in  

E-Print Network (OSTI)

Proceedings of Healthy Buildings 2009 Paper 474 Impacts of HVAC Filtration on Air efficiency filters (Points A, B, and C, respectively). #12;Proceedings of Healthy Buildings 2009 Paper 474

Siegel, Jeffrey

483

Optimized Fan Control In Variable Air Volume HVAC Systems Using Static Pressure Resets: Strategy Selection and Savings Analysis  

E-Print Network (OSTI)

The potential of static pressure reset (SPR) control to save fan energy in variable air volume HVAC systems has been well documented. Current research has focused on the creation of reset strategies depending on specific system features...

Kimla, John

2010-07-14T23:59:59.000Z

484

Fireside carburization of stainless steel furnace tubes  

SciTech Connect

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

485

Tips: Natural Gas and Oil Heating Systems | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Natural Gas and Oil Heating Systems Natural Gas and Oil Heating Systems Tips: Natural Gas and Oil Heating Systems May 30, 2012 - 5:41pm Addthis Install a new energy-efficient furnace to save money over the long term. Install a new energy-efficient furnace to save money over the long term. If you plan to buy a new heating system, ask your local utility or state energy office about the latest technologies on the market. For example, many newer models have designs for burners and heat exchangers that are more efficient during operation and cut heat loss when the equipment is off. Consider a sealed-combustion furnace -- they are safer and more efficient. Long-Term Savings Tip Install a new energy-efficient furnace to save money over the long term. Look for the ENERGY STAR® and EnergyGuide labels to compare efficiency and

486

Piedmont Natural Gas - Residential Equipment Efficiency Program |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Piedmont Natural Gas - Residential Equipment Efficiency Program Piedmont Natural Gas - Residential Equipment Efficiency Program Piedmont Natural Gas - Residential Equipment Efficiency Program < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heating Appliances & Electronics Water Heating Maximum Rebate 2 rebates per household Program Info State North Carolina Program Type Utility Rebate Program Rebate Amount High-Efficiency Furnace: $175 Tankless Water Heater: $150 Tank Water Heater: $50 Provider Gas Technology and Energy Services Piedmont Natural Gas offers rebates on high-efficiency natural gas tankless water heaters, tank water heaters and furnaces. Customers on the 101-Residential Service rate are eligible for these rebates. Rebates are only provided for qualifying natural gas equipment that is installed to

487

Air quality metrics and wireless technology to maximize the energy efficiency of HVAC in a working auditorium  

Science Journals Connector (OSTI)

Abstract HVAC is the single largest consumer of energy in commercial and residential buildings. Reducing its energy consumption without compromising occupants’ comfort would have environmental and financial benefits. A wireless testbed consisting of a retrofitted wireless Condensation Particle Counter (CPC), 25 wireless temperature sensors, 2 HVAC-embedded temperature and CO2 sensors, and a webcam was deployed in a working auditorium, to monitor the air quality, temperature, and occupancy of the room. The main objectives were to identify particle sources using the retrofitted CPC, map the temperature variability of the room and select an optimal sensor location for HVAC control using clustering algorithms, and examine possible energy savings by operating the HVAC only during periods of occupancy using calendar-based scheduling and air quality indicators as proxies of occupancy. All air quality metrics increased with higher occupancy rates, although HVAC-modes changes were also identified as a source for particle numbers. Operating the HVAC using calendar-based scheduling resulted in energy savings of between 8 and 79%, increasing if occupancy events were scheduled close together. Finally, CO2 was the strongest predictor of occupancy counts with an R2 of 0.62 (pfilters should be replaced.

Anna Leavey; Yong Fu; Mo Sha; Andrew Kutta; Chenyang Lu; Weining Wang; Bill Drake; Yixin Chen; Pratim Biswas

2014-01-01T23:59:59.000Z

488

Furnace Blower Electricity: National and Regional Savings Potential  

NLE Websites -- All DOE Office Websites (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.

489

Mechanism of physical transformations of mineral matter in the blast furnace coke with reference to its reactivity and strength  

SciTech Connect

Examinations of polished and dry cut sections of feed and tuyere coke revealed some possible mechanisms for the physical influence of mineral compounds on the reactivity and strength of coke. It was observed that rounded particles of mineral phases that are exposed to the pore walls and surface of coke at high temperature create an inorganic cover, thus reducing the surface available for gas-solid reactions. The particles of mineral matter that have a low melting point and viscosity can affect the coke at earlier stages in the blast furnace process, acting in the upper parts of the blast furnace (BF). The temperature-driven redistribution of mineral phases within the coke matrix probably leads to the creation of weak spots and in general to anisotropy in its properties, thus reducing its strength. 9 refs., 2 figs., 1 tab.

Stanislav S. Gornostayev; Jouko J. Haerkki [University of Oulu, Oulu (Finland). Laboratory of Process Metallurgy

2006-12-15T23:59:59.000Z

490

A new compact fixed-point blackbody furnace  

SciTech Connect

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

491

HVAC EFFICIENCY BUSINESS CASE DEMAND CONTROL KITCHEN VENTILATION  

E-Print Network (OSTI)

and natural gas, total annual savings can be estimated. This can then be coupled with the expected system cost factor with respect to air flow. This means that even a relatively modest reduction in air flow can fans through variable frequency drives (VFDs) based on input signals from temperature probes placed

California at Davis, University of

492

Questar Gas - Home Builder Gas Appliance Rebate Program | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Questar Gas - Home Builder Gas Appliance Rebate Program Questar Gas - Home Builder Gas Appliance Rebate Program Questar Gas - Home Builder Gas Appliance Rebate Program < Back Eligibility Construction Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heating Home Weatherization Construction Commercial Weatherization Design & Remodeling Appliances & Electronics Water Heating Program Info Start Date 7/1/2009 State Wyoming Program Type Utility Rebate Program Rebate Amount Energy Star Home Certification: $500 Storage Water Heater: $50 Tankless Water Heater: $300 Furnace: $300 Boiler: $400 Provider Questar Gas Questar Gas provides incentives for home builders to construct energy efficient homes. Rebates are provided for both energy efficient gas equipment and whole home Energy Star certification. All equipment and

493

The new standard’s HVAC background noise requirements and their implementation in building design  

Science Journals Connector (OSTI)

The new ANSI classroom standard recommends long?term steady?state background sound level limits of 35 dBA and 55 dBC. Since the HVAC system is typically a room’s dominant steady?state noise source it is usually reasonable to apply these limits to the design of the system assuming that other noise sources produce insignificant additions to the room’s long?term background noise environment. The recommended sound level limits are significantly lower than current industry standards and complying with them will increase system costs. School administrators architects and HVAC system designers should therefore be prepared for the changes. This paper summarizes equipment selection and system design guidelines that have been found to be necessary for ensuring compliance with the sound level limits.

2001-01-01T23:59:59.000Z

494

Comparisons of HVAC Simulations between EnergyPlus and DOE-2.2 for Data Centers  

SciTech Connect

This paper compares HVAC simulations between EnergyPlus and DOE-2.2 for data centers. The HVAC systems studied in the paper are packaged direct expansion air-cooled single zone systems with and without air economizer. Four climate zones are chosen for the study - San Francisco, Miami, Chicago, and Phoenix. EnergyPlus version 2.1 and DOE-2.2 version 45 are used in the annual energy simulations. The annual cooling electric consumption calculated by EnergyPlus and DOE-2.2 are reasonablely matched within a range of -0.4percent to 8.6percent. The paper also discusses sources of differences beween EnergyPlus and DOE-2.2 runs including cooling coil algorithm, performance curves, and important energy model inputs.

Hong, Tianzhen; Sartor, Dale; Mathew, Paul; Yazdanian, Mehry

2008-08-13T23:59:59.000Z

495

Post-Retrocommissioning HVAC Operations Monitoring Using Enterprise-Wide energy Management System  

E-Print Network (OSTI)

Post-retrocommissioning HVAC Operations Monitoring Using Enterprise-wide Energy Management System Narendra Amarnani Project Manager Brian Roberts Section Manager County of Los Angeles – ISD Los Angeles, California, USA Howard Choy... earned a graduate degree from Cal Poly University, Pomona. He is a Certified Energy Manager, a LEED® AP, and a Certified Energy Plan Examiner. Brian’s is the Section Manager of the Systems Section within Energy Management Division. His...

Amarnani, N.; Roberts, B.; Choy, H.

2007-01-01T23:59:59.000Z

496

Discussion of an Optimization Scheme for the Ground Source Heat Pump System of HVAC  

E-Print Network (OSTI)

ICEBO2006, Shenzhen, China Renewable Energy Resources and a Greener Future Vol.VIII-13-3 Discussion of an Optimization Scheme for the Ground Source Heat Pump System of HVAC Wei Mu Suilin Wang Shuyuan Pan Yongzheng Shi Master Student... the Jurisdiction of Beijing Municipality (BJE10016200511). REFERENCES [1]Rongguang Wang,Yufeng Zhang,Yang,Xiaotong Zheng. Study on Direct Use Of Geothermal Energy For Heating And Its Energy Efficency Effects [J]. ACTA ENERGIAE SOLARIS SINICA, 2002, 23...

Mu, W.; Wang, S.; Pan, S.; Shi, Y.

2006-01-01T23:59:59.000Z

497

Comparative guide to emerging diagnostic tools for large commercial HVAC systems  

SciTech Connect

This guide compares emerging diagnostic software tools that aid detection and diagnosis of operational problems for large HVAC systems. We have evaluated six tools for use with energy management control system (EMCS) or other monitoring data. The diagnostic tools summarize relevant performance metrics, display plots for manual analysis, and perform automated diagnostic procedures. Our comparative analysis presents nine summary tables with supporting explanatory text and includes sample diagnostic screens for each tool.

Friedman, Hannah; Piette, Mary Ann

2001-05-01T23:59:59.000Z

498

Energy Master Plans for Sustainable, High Performance HVAC and Associated Systems for Hot and Humid Climates  

E-Print Network (OSTI)

; Equal pressure ducting systems; Modular heating and cooling generation, small zone control. 4.Complexity: If you cannot understand the system without explanation, it is too complex. If you need to read a sequence of operation more than once... by over 75%. It is the HVAC system selection and in particular the distribution systems that require to be carefully selected and designed to achieve long-term minimum electrical use. Electrical refrigeration uses only 25% of the electricity...

Maisey, G. E.; Milestone, B.

2004-01-01T23:59:59.000Z

499

Wavelet based artificial neural network applied for energy efficiency enhancement of decoupled HVAC system  

Science Journals Connector (OSTI)

Control methodologies could lower energy demand and consumption of heating, ventilating and air conditioning (HVAC) systems and, simultaneously, achieve better comfort conditions. However, the application of classical controllers is unsatisfactory as HVAC systems are non-linear and the control variables such as temperature and relative humidity (RH) inside the thermal zone are coupled. The objective of this study is to develop and simulate a wavelet-based artificial neural network (WNN) for self tuning of a proportional-derivative (PD) controller for a decoupled bi-linear HVAC system with variable air volume and variable water flow responsible for controlling temperature and RH of a thermal zone, where thermal comfort and energy consumption of the system are evaluated. To achieve the objective, a WNN is used in series with an infinite impulse response (IIR) filter for faster and more accurate identification of system dynamics, as needed for on-line use and off-line batch mode training. The WNN-IIR algorithm is used for self-tuning of two PD controllers for temperature and RH. The simulation results show that the WNN-IIR controller performance is superior, as compared with classical PD controller. The enhancement in efficiency of the HVAC system is accomplished due to substantially lower consumption of energy during the transient operation, when the gain coefficients of PD controllers are tuned in an adaptive manner, as the steady state setpoints for temperature and RH are better reached in a shorter period of time. The multi-zone analyses are suggested for future work.

G. Jahedi; M.M. Ardehali

2012-01-01T23:59:59.000Z

500

Combustion Air Preheat on Steam Cracker Furnaces  

E-Print Network (OSTI)

Industrial Energy Technology Conference Volume II, Houston, TX, April 17-20, 1983 FIGURE 6 TYPICAL SEAL ARRANGEMENT FIGURE 1 TYPICAL CHANGEOVER PATTERN 50 GAS TURBlNEICRACKlNO FOONACE SYSTEM GTE/AIR FLOW VI nME O...-_T.,.;'..;.;,M;,;;;E;.:"? .;;.S...

Kenney, W. F.

1983-01-01T23:59:59.000Z