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Note: This page contains sample records for the topic "warm air furnace" 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

Energy Conservation Program for Certain Industrial Equipment: Energy Conservation Standards for Commercial Warm Air Furnaces, Notice of Proposed Rulemaking  

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

Energy Conservation Program for Certain Industrial Equipment: Energy Conservation Standards for Commercial Warm Air Furnaces, Notice of Proposed Rulemaking

2

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.

3

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.

4

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

5

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

6

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

7

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

8

E-Print Network 3.0 - air-conditioners furnaces air Sample Search...  

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

by connecting it to a leaky duct system. By decreasing the leakage... condensing unit of a split system air conditioner or heat pump, cooling or heating coil, or the furnace...

9

Review: Air Pollution and Global Warming: History, Science, and Solutions, 2nd ed.  

E-Print Network (OSTI)

Air Pollution and Global Warming: History, Science, andZ. Air Pollution and Global Warming: History, Science, andAir Pollution and Global Warming: History, Science, and

Laberge, Yves

2013-01-01T23:59:59.000Z

10

Estimation of Fuel Savings by Recuperation of Furnace Exhausts to Preheat Combustion Air  

E-Print Network (OSTI)

The recovery of waste energy in furnace exhaust gases is gaining in importance as fuel costs continue to escalate. Installation of a recuperator in the furnace exhaust stream to preheat the combustion air can result in considerable savings in fuel...

Rebello, W. J.; Kohnken, K. H.; Phipps, H. R., Jr.

1980-01-01T23:59:59.000Z

11

The Impact of Global Warming and Air Pollution on Patient Visits in the Emergency Department  

E-Print Network (OSTI)

Review The Impact sf Global Warming and 1 Air pollution onair pollution problems and global warming will effect thesites in the human body. Global Warming Global warming goes

Derlet, Robert W

2001-01-01T23:59:59.000Z

12

E-Print Network 3.0 - air furnace design Sample Search Results  

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

IN MUNICIPAL INCINERATOR Summary: cal to good furnace performance and to mainten ance of air pollution control. Early in 1967 the writer... of the grate roughly equivalent to...

13

Temperature Compensated Air/Fuel Ratio Control on a Recuperated Furnace  

E-Print Network (OSTI)

When recuperation is added to a furnace, air/ fuel ratio control seemingly becomes more complicated. Two methods normally used are mass flow control where the fuel pressure or flow is proportional to the mass flow of air or cross-connected control...

Ferri, J. L.

1983-01-01T23:59:59.000Z

14

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

15

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

SciTech Connect

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

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

1999-07-01T23:59:59.000Z

16

Furnace Controls Using High Temperature Preheated Combustion Air  

E-Print Network (OSTI)

on accuracy in variable leakage of recuperators ESL-IE-81-04-85 Proceedings from the Third Industrial Energy Technology Conference Houston, TX, April 26-29, 1981 balancing orifice, butterfly, etc.) upstream of the burner. This is especially necessary... the recuperator and preheat temperature result in little or no effect on the accuracy of this system. The orifice plates utilized in the air line must be located in a laminar flow position (straight run of pipe) to insure accuracy. Figure 4C shows a simple flow...

Gonzales, J. M.; Rebello, W. J.

1981-01-01T23:59:59.000Z

17

Addressing Global Warming, Air Pollution Health Damage, and Long-Term Energy Needs Simultaneously  

E-Print Network (OSTI)

Addressing Global Warming, Air Pollution Health Damage, and Long-Term Energy Needs Simultaneously that will reduce air pollution and address climate change. Data, computer model results, and new emission air-pollution-related deaths and millions of cases of asthma and respiratory disease each year

Patzek, Tadeusz W.

18

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

19

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

20

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

Note: This page contains sample records for the topic "warm air furnace" 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

Furnace Blower Electricity: National and Regional Savings Potential  

SciTech Connect

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 80percent 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 pressure used 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, while warm 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.

Florida Solar Energy Center; Franco, Victor; Franco, Victor; Lutz, Jim; Lekov, Alex; Gu, Lixing

2008-05-16T23:59:59.000Z

22

Energy and global warming impacts of next generation refrigeration and air conditioning technologies  

SciTech Connect

Significant developments have occurred in hydrofluorocarbon (HFC) and the application of ammonia and hydrocarbons as refrigerant working fluids since the original TEWI (Total Equivalent Warming Impact) report in 1991. System operating and performance data on alternative refrigerants and refrigeration technologies justify and updated evaluation of these new alternative refrigerants and competing technologies in well-characterized applications. Analytical and experimental results are used to show quantitative comparisons between HFCS, HFC blends, hydrocarbons, and ammonia, used as refrigerants. An objective evaluation is presented for commercial and near commercial non-CFC refrigerants/blowing agents and alternative refrigeration technologies. This information is needed for objective and quantitative decisions on policies addressing greenhouse gas emissions from refrigeration and air conditioning equipment. The evaluation assesses the energy use and global warming impacts of refrigeration and air conditioning technologies that could be commercialized during the phase out of HCFCS. Quantitative comparison TEWI for two application areas are presented. Opportunities for significant reductions in TEWI are seen with currently known refrigerants through improved maintenance and servicing practices and improved product designs.

Sand, J.R.; Fischer, S.K.; Baxter, V.D.

1996-10-01T23:59:59.000Z

23

Global warming impacts of ozone-safe refrigerants and refrigeration, heating, and air-conditioning technologies  

SciTech Connect

International agreements mandate the phase-out of many chlorine containing compounds that are used as the working fluid in refrigeration, air-conditioning, and heating equipment. Many of the chemical compounds that have been proposed, and are being used in place of the class of refrigerants eliminated by the Montreal Protocol are now being questioned because of their possible contributions to global warming. Natural refrigerants are put forth as inherently superior to manufactured refrigerants because they have very low or zero global warming potentials (GWPs). Questions are being raised about whether or not these manufactured refrigerants, primarily hydrofluorocarbons (HFCs), should be regulated and perhaps phased out in much the same manner as CFCs and HCFCs. Several of the major applications of refrigerants are examined in this paper and the results of an analysis of their contributions to greenhouse warming are presented. Supermarket refrigeration is shown to be an application where alternative technologies have the potential to reduce emissions of greenhouse gases (GHG) significantly with no clear advantage to either natural or HFC refrigerants. Mixed results are presented for automobile air conditioners with opportunities to reduce GHG emissions dependent on climate and comfort criteria. GHG emissions for hermetic and factory built systems (i.e. household refrigerators/freezers, unitary equipment, chillers) are shown to be dominated by energy use with much greater potential for reduction through efficiency improvements than by selection of refrigerant. The results for refrigerators also illustrate that hydrocarbon and carbon dioxide blown foam insulation have lower overall effects on GHG emissions than HFC blown foams at the cost of increased energy use.

Fischer, S.; Sand, J.; Baxter, V.

1997-12-01T23:59:59.000Z

24

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

25

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

26

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

27

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

28

The Effect of Diurnal Sea Surface Temperature Warming on Climatological AirSea Fluxes  

E-Print Network (OSTI)

Diurnal sea surface warming affects the fluxes of latent heat, sensible heat, and upwelling longwave radiation. Diurnal warming most typically reaches maximum values of 3C, although very localized events may reach 78C. ...

Clayson, Carol Anne

29

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.

30

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....

31

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...

32

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

33

E-Print Network 3.0 - air warming system Sample Search Results  

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

inside. Analogously... , but through a different physical process, the Earth's greenhouse effect warms the surface of the planet... intensified the natural greenhouse effect,...

34

Warm Humid Climate: Methodology to Study Air Temperature Distribution: Mobile Phones Base Stations as Viable Alternative for Fixed Points  

E-Print Network (OSTI)

WARM-HUMID CLIMATE: METHODOLOGY TO STUDY AIR TEMPERATURE DISTRIBUTION: MOBILE PHONES BASE STATIONS AS VIABLE ALTERNATIVE FOR FIXED POINTS Angelina Dias Leo Costa (1); Lucila Labaki (2); Virgnia Arajo (3) (1) and (2) School of Civil... of occupation with the results of measurements. In fact, in some dense areas the highest temperatures and the lowest humidity levels were found. The proposed methodology of measurements in fixed points using mobile phone base stations is original, provides...

Araujo, V.; Costa, A.; Labaki, L.

2006-01-01T23:59:59.000Z

35

Economic Passive Solar Warm-Air Heating and Ventilating System Combined with Short Term Storage within Building Components for Residential Houses  

Science Journals Connector (OSTI)

Warm-air heating systems are very suitable for the exploitation of solar energy. A relatively low temperature level combined ... used for transportation and distribution equipment or as storage elements.

K. Bertsch; E. Boy; K.-D. Schall

1984-01-01T23:59:59.000Z

36

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...

37

Warming of the North Pacific Ocean: Local AirSea Coupling and Remote Climatic Impacts  

Science Journals Connector (OSTI)

In this paper, global climatic response to the North Pacific oceanic warming is investigated in a series of coupled oceanatmosphere modeling experiments. In the model, an idealized heating is imposed over the North Pacific Ocean, while the ocean ...

Lixin Wu; Chun Li

2007-06-01T23:59:59.000Z

38

Tube furnace  

DOE Patents (OSTI)

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

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

1991-01-01T23:59:59.000Z

39

Furnace assembly  

DOE Patents (OSTI)

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

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

1985-01-01T23:59:59.000Z

40

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.

Note: This page contains sample records for the topic "warm air furnace" 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

Relationship between Warm Air Mass Transport into the Upper Polar Atmosphere and Cold Air Outbreaks in Winter  

Science Journals Connector (OSTI)

This study investigates dominant patterns of daily surface air temperature anomalies in winter (November to February) and their relationship with the meridional mass circulation variability using the daily ECMWF Interim reanalysis in 19792011. ...

Yueyue Yu; Ming Cai; Rongcai Ren; Huug M. van den Dool

42

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

43

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

44

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...

45

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

46

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

47

Cows Causing Global Warming  

E-Print Network (OSTI)

Broadcast Transcript: Remember when President Reagan blamed trees for air pollution? Well now the Japanese are blaming cows for global warming. Apparently, the methane emissions from burping cows account for 5% of all global greenhouse gases. Simple...

Hacker, Randi

2008-08-06T23:59:59.000Z

48

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

49

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...

50

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

51

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

52

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...

53

Global Warming  

Science Journals Connector (OSTI)

The greenhouse effect is the process in which the absorption of infrared radiation by an atmosphere warms aplanet. The effect occurs naturally to keep Earth's surface warm. However, the anthropogenic greenhouse...

2008-01-01T23:59:59.000Z

54

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...

55

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...

56

Indoor Air Quality in 24 California Residences Designed as High Performance Green Homes  

E-Print Network (OSTI)

X Gas furnace X X Geothermal Combisystem Solar X X Air-to-Solar Combisystem Heating Equipment Type Gas boiler Gas furnace

Less, Brennan

2012-01-01T23:59:59.000Z

57

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

58

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)

59

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

60

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...

Note: This page contains sample records for the topic "warm air furnace" 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

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

62

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

63

CFD modelling of air-fired and oxy-fuel combustion in a large-scale furnace at Loy Yang A brown coal power station  

Science Journals Connector (OSTI)

Oxy-fuel combustion technique is a viable option to reduce several types of greenhouse gases (GHGs) emissions from the pulverized coal (PC) combustion systems. In this paper, a computational fluid dynamics (CFD) modelling study has been developed in order to investigate the Victorian brown coal combustion in a 550MW utility boiler under the air-fired (reference case) and three oxy-fuel-fired scenarios. The reference firing case was modelled based on the operating conditions of Loy Yang A power plant located in the state of Victoria, Australia. While Chalmers oxy-fuel combustion approach was selected for the present oxy-fuel combustion simulations, which referred to as OF25 (25vol.% O2), OF27 (27vol.% O2), and OF29 (29vol.% O2). User-defined functions (UDFs) were written and incorporated into the CFD code to calculate the following mathematical models: the PC devolatilization, char burnout, multi-step chemical reactions, mass and heat transfer, carbon in fly-ash, and \\{NOx\\} formation/destruction. A level of confidence of the CFD model was achieved validating four different parameters of the conventional combustion case, as well as the previous preliminary CFD studies that conducted on a 100kW unit firing propane and lignite under oxy-fuel combustion environments. The numerical results of OF29 combustion condition were considerably similar to the reference firing results in terms of gas temperature levels and radiative heat transfer relative to the OF25 and OF27 combustion cases. This similarity was due to increasing the residence time of PC in the combustion zone and O2-enriched in feed oxidizer gases. A significant increase in the CO2 concentrations and a noticeable decrease in the \\{NOx\\} formation were observed under all oxy-fuel combustion scenarios. The combustion chemistry was adopted in these investigations in order to capture the effects of O2 concentrations and gas temperatures on the CO/CO2 production rate and equilibrium between H2 and H2O in the combustion zone. Also, the use of O2-enriched atmospheres during oxy-fuel-fired cases was slightly enhanced the carbon burnout rate. These predicted results were reasonably consistent with the experimental investigations and numerical modelling found in the literature. This study of Victorian brown coal oxy-fuel combustion in a large-scale tangentially-fired boiler is important prior to its implementation in real-life.

Audai Hussein Al-Abbas; Jamal Naser; David Dodds

2012-01-01T23:59:59.000Z

64

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

65

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...

66

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

67

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

68

Room Air Conditioners | Department of Energy  

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

Test Results roomairconditioner v1.6.xlsx More Documents & Publications Commercial Air Conditioners and Heat Pumps Fluorescent Lamp Ballasts Residential Condensing Gas Furnaces...

69

global warming's six indias  

E-Print Network (OSTI)

global warming's six indias: An Audience Segmentation Analysis #12;Global Warming's Six Indias 1............................................................................................................................................20 2. Global Warming Beliefs and Attitudes................................................................................ 21 Knowledge about global warming varies widely by group

Haller, Gary L.

70

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))"

71

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.

72

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

73

Biomass Boiler and Furnace Emissions and Safety Regulations in the  

Open Energy Info (EERE)

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

74

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

75

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

76

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

77

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

78

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

79

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...

80

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

Note: This page contains sample records for the topic "warm air furnace" 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

Low NOx nozzle tip for a pulverized solid fuel furnace  

DOE Patents (OSTI)

A nozzle tip [100] for a pulverized solid fuel pipe nozzle [200] of a pulverized solid fuel-fired furnace includes: a primary air shroud [120] having an inlet [102] and an outlet [104], wherein the inlet [102] receives a fuel flow [230]; and a flow splitter [180] disposed within the primary air shroud [120], wherein the flow splitter disperses particles in the fuel flow [230] to the outlet [104] to provide a fuel flow jet which reduces NOx in the pulverized solid fuel-fired furnace. In alternative embodiments, the flow splitter [180] may be wedge shaped and extend partially or entirely across the outlet [104]. In another alternative embodiment, flow splitter [180] may be moved forward toward the inlet [102] to create a recessed design.

Donais, Richard E; Hellewell, Todd D; Lewis, Robert D; Richards, Galen H; Towle, David P

2014-04-22T23:59:59.000Z

82

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...

83

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....

84

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

85

HEATING, AIR-CONDITIONING AND REFRIGERATION DISTRIBUTORS INTERNATIONAL (HARDI)  

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

OE Framework Document and Stakeholder Meeting regarding the Enforcement of the updated Energy Conservation Standards for Air Conditioners, Furnaces and Heat Pumps.

86

Local effects of global warming.  

E-Print Network (OSTI)

??Currently, global warming is a focus of attention. In order to scientifically evaluate evidence about global warming, and prove the existence of global warming, this (more)

Lu, Jun

2007-01-01T23:59:59.000Z

87

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

88

QUESTIONS ABOUT GLOBAL WARMING  

E-Print Network (OSTI)

QUESTIONS ABOUT GLOBAL WARMING ¥IS IT REAL? ¥IS IT IMPORTANT? ¥WHAT IS IT DUE TO? ¥HOW MUCH MORE in the atmosphere, giving Earth its temperate climate. Global Atmosphere, Global Warming GLOBAL TEMPERATURE TREND?t a cure for global warming! Aerosols only last a short while in the atmosphere, they would have

89

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

90

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

91

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

92

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.

93

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

94

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

95

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...

96

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...

97

Inertial impaction air sampling device  

DOE Patents (OSTI)

An inertial impactor to be used in an air sampling device for collection of respirable size particles in ambient air which may include a graphite furnace as the impaction substrate in a small-size, portable, direct analysis structure that gives immediate results and is totally self-contained allowing for remote and/or personal sampling. The graphite furnace collects suspended particles transported through the housing by means of the air flow system, and these particles may be analyzed for elements, quantitatively and qualitatively, by atomic absorption spectrophotometry. 3 figs.

Dewhurst, K.H.

1987-12-10T23:59:59.000Z

98

Inertial impaction air sampling device  

DOE Patents (OSTI)

An inertial impactor to be used in an air sampling device for collection of respirable size particles in ambient air which may include a graphite furnace as the impaction substrate in a small-size, portable, direct analysis structure that gives immediate results and is totally self-contained allowing for remote and/or personal sampling. The graphite furnace collects suspended particles transported through the housing by means of the air flow system, and these particles may be analyzed for elements, quantitatively and qualitatively, by atomic absorption spectrophotometry.

Dewhurst, Katharine H. (13150 Wenonah SE. Apt. 727, Albuquerque, NM 87123)

1990-01-01T23:59:59.000Z

99

Inertial impaction air sampling device  

DOE Patents (OSTI)

An inertial impactor is designed which is to be used in an air sampling device for collection of respirable size particles in ambient air. The device may include a graphite furnace as the impaction substrate in a small-size, portable, direct analysis structure that gives immediate results and is totally self-contained allowing for remote and/or personal sampling. The graphite furnace collects suspended particles transported through the housing by means of the air flow system, and these particles may be analyzed for elements, quantitatively and qualitatively, by atomic absorption spectrophotometry. 3 figs.

Dewhurst, K.H.

1990-05-22T23:59:59.000Z

100

Meteorological Effects on Air/Fuel Ratio  

E-Print Network (OSTI)

1. "Temperature Compensat d Air/Fuel Ratio Control on a Recuperated Furnace," by J. L. Ferri. GTE Products Corporation, Towanda, PA, lECTC '83 2. Chemical Engineers Handbook, PerTY and Chilton, 5th ed.., (McGraw Hlln, p. 12-7. 3. "Technology..., E = (100 ... 10) (ill) - 100 = 17.2% excess a . 2 Example 2 A furnace uses recuperators which prehe~t the combustion air to 1200 OF using 30 OF air. WithJlOO OF air, the preheated air temperature will be approxIjrnately 1270 OF, a 70 OF increase...

Ferri, J. L.

1984-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "warm air furnace" 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

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.

102

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

103

Combustion process in a biomass grate fired industry furnace: a CFD study  

Science Journals Connector (OSTI)

This paper presents a CFD investigation of the combustion process in a 50 MW grate fired furnace. The CFD results were compared with available experimental data at the furnace outlet to validate the models for the volatile oxidation and NOx formation. The models were then used to predict the effect of an 'ECO' tube system on NOx emissions. It was shown that with an improved flow structure and air distribution, 30% NOx reduction can be obtained. CFD results revealed the impact of load and fuel moisture on the flow structure, the temperature distribution and the flow residence time.

T. Klason; X.S. Bai

2006-01-01T23:59:59.000Z

104

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.

105

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

106

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...

107

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

108

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...

109

Forecasting phenology under global warming  

Science Journals Connector (OSTI)

...Forrest Forecasting phenology under global warming Ines Ibanez 1 * Richard B. Primack...and site-specific responses to global warming. We found that for most species...climate change|East Asia, global warming|growing season, hierarchical...

2010-01-01T23:59:59.000Z

110

Coal combustion under conditions of blast furnace injection; [Quarterly] technical report, September 1--November 30, 1993  

SciTech Connect

A potentially new use for Illinois coal is its use as a fuel injected into a blast furnace to produce molten iron as the first step in steel production. Because of its increasing cost and decreasing availability, metallurgical coke is now being replaced by coal injected at the tuyere area of the furnace where the blast air enters. The purpose of this study is to evaluate the combustion of coal during the blast furnace injection process and to delineate the optimum properties of the feed coal. This investigation is significant to the use of Illinois coal in that the limited research to date suggests that coals of low fluidity and moderate to high sulfur and chlorine contents are suitable feedstocks for blast furnace injection. This study is unique in that it will be the first North American effort to directly determine the nature of the combustion of coal injected into a blast furnace. This proposal is a follow-up to one funded for the 1992--1993 period. It is intended to complete the study already underway with the Armco Inc. steel company and to initiate a new cooperative study along somewhat similar lines with the Inland Steel Company. The results of this study will lead to the development of a testing and evaluation protocol that will give a unique and much needed understanding of the behavior of coal in the injection process and prove the potential of Illinois coals f or such use.

Crelling, J.C.

1993-12-31T23:59:59.000Z

111

Ozone Depletion and Global Warming.  

E-Print Network (OSTI)

??Abstract This thesis examines global warming and the possible contribution that ozone depletion provides to this warming. An examination is performed to determine the extent (more)

Fow, Alista John

2006-01-01T23:59:59.000Z

112

ARM - Lesson Plans: Global Warming  

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

Plans: Global Warming Objective The objective is to understand the enhanced greenhouse effect and the effects of global warming. Important Points to Understand If the...

113

How Do You Stay Warm While Saving Money and Energy in Extreme Weather? |  

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

Warm While Saving Money and Energy in Extreme Warm While Saving Money and Energy in Extreme Weather? How Do You Stay Warm While Saving Money and Energy in Extreme Weather? February 3, 2011 - 6:30am Addthis Many states are getting extreme weather this week, with deep freezes, huge blizzards, and ice storms causing various problems across the country. Such weather can cause us to use energy a bit differently to stay warm and keep things running. Depending on where you are, you may be keeping the faucet dripping (so pipes don't freeze), your furnace might be working overtime in the cold, or you may be spending extra time warming up your car. In extreme conditions, it's important to be safe and take your own home and needs into account when taking these extra measures, while still considering your energy use and costs. For example, are your pipes in a

114

How Do You Stay Warm While Saving Money and Energy in Extreme Weather? |  

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

How Do You Stay Warm While Saving Money and Energy in Extreme How Do You Stay Warm While Saving Money and Energy in Extreme Weather? How Do You Stay Warm While Saving Money and Energy in Extreme Weather? February 3, 2011 - 6:30am Addthis Many states are getting extreme weather this week, with deep freezes, huge blizzards, and ice storms causing various problems across the country. Such weather can cause us to use energy a bit differently to stay warm and keep things running. Depending on where you are, you may be keeping the faucet dripping (so pipes don't freeze), your furnace might be working overtime in the cold, or you may be spending extra time warming up your car. In extreme conditions, it's important to be safe and take your own home and needs into account when taking these extra measures, while still considering your energy use and costs. For example, are your pipes in a

115

Coal combustion under conditions of blast furnace injection. [Quarterly] technical report, 1 March 1993--31 May 1993  

SciTech Connect

A potentially new use for Illinois coal is its use as a fuel injected into a blast furnace to produce molten iron as the first step in steel production. Because of its increasing cost and decreasing availability, metallurgical coke is now being replaced by coal injected at the tuyere area of the furnace where the blast air enters. The purpose of this study is to evaluate the combustion of coal during the blast furnace injection process and to delineate the optimum properties of the feed coal. The basic program is designed to determine the reactivity of both coal and its derived char under blast furnace conditions and to compare the results to similar properties of blast furnace coke. The results of the first two experiments in which coal char pyrolyzed in nitrogen at 1000{degrees}C in an EPR were reacted isothermally in air at 1000{degrees}C and 1200{degrees}C. The reactivity values of the same char in these two experiments were different by an order of magnitude. The char reactivity at 1000{degrees}C was 9.7 {times} 10{sup {minus}4} grams per minute while the reactivity. of the char at 1200{degrees}C was 1.6 {times} 10{sup {minus}3} grams per minute. These results suggest that the temperature of the blast air in the tuyere may be critical in achieving complete carbon burnout.

Crelling, J.C. [Southern Illinois Univ., Carbondale, IL (United States). Dept. of Geology; Case, E.R. [Armco, Inc., Middletown, OH (United States). Research and Technology Div.

1993-09-01T23:59:59.000Z

116

Impacts of Global Warming  

Science Journals Connector (OSTI)

The 2001 Inter-governmental Panel on Climate Change (IPCC) Report provides not merely 1, but 19 separate chapters on the impacts of global warming, comprising over 1,000 pages of descriptions...

Donald Rapp

2014-01-01T23:59:59.000Z

117

2418 global warming [n  

Science Journals Connector (OSTI)

met....(Since 1860 and especially since the early 1970s, the progressive increase in the average temperature of the atmosphere close to Earth and of the oceans, as well as the further warming expecte...

2010-01-01T23:59:59.000Z

118

Warm Mix Asphalt  

Science Journals Connector (OSTI)

Warm Mix Asphalt (WMA) technologies have potential to reduce the application temperature of Hot Mix Asphalt (HMA) and improve workability without ... a reduction in greenhouse gas emissions, decreased energy cons...

Martins Zaumanis

2014-01-01T23:59:59.000Z

119

Original article Predicted global warming  

E-Print Network (OSTI)

Original article Predicted global warming and Douglas-fir chilling requirements DD McCreary1 DP to predicted global warming. Douglas-fir / chilling / global warming / bud burst / reforestation Résumé offer evidence that mean global warming of 3-4 °C could occur within the next century, particularly

Boyer, Edmond

120

Graphite electrode DC arc furnace. Innovative technology summary report  

SciTech Connect

The Graphite Electrode DC Arc Furnace (DC Arc) is a high-temperature thermal process, which has been adapted from a commercial technology, for the treatment of mixed waste. A DC Arc Furnace heats waste to a temperature such that the waste is converted into a molten form that cools into a stable glassy and/or crystalline waste form. Hazardous organics are destroyed through combustion or pyrolysis during the process and the majority of the hazardous metals and radioactive components are incorporated in the molten phase. The DC Arc Furnace chamber temperature is approximately 593--704 C and melt temperatures are as high as 1,500 C. The DC Arc system has an air pollution control system (APCS) to remove particulate and volatiles from the offgas. The advantage of the DC Arc is that it is a single, high-temperature thermal process that minimizes the need for multiple treatment systems and for extensive sorting/segregating of large volumes of waste. The DC Arc has the potential to treat a wide range of wastes, minimize the need for sorting, reduce the final waste volumes, produce a leach resistant waste form, and destroy organic contaminants. Although the DC arc plasma furnace exhibits great promise for treating the types of mixed waste that are commonly present at many DOE sites, several data and technology deficiencies were identified by the Mixed Waste Focus Area (MWFA) regarding this thermal waste processing technique. The technology deficiencies that have been addressed by the current studies include: establishing the partitioning behavior of radionuclides, surrogates, and hazardous metals among the product streams (metal, slag, and offgas) as a function of operating parameters, including melt temperature, plenum atmosphere, organic loading, chloride concentration, and particle size; demonstrating the efficacy of waste product removal systems for slag and metal phases; determining component durability through test runs of extended duration, evaluating the effect of feed composition variations on process operating conditions and slag product performance; and collecting mass balance and operating data to support equipment and instrument design.

NONE

1999-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "warm air furnace" 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

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

122

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

123

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

124

Building America Top Innovations 2013 Profile … High-Performance Furnace Blowers  

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

Annual Fuel Utilization Annual Fuel Utilization Efficiency [AFUE] and Seasonal Energy Efficiency Ratio [SEER] and at real installed conditions. A testing program was undertaken at two laboratories to compare the performance of furnace blowers over a range of static pressure differences that included standard rating points and measured field test pressures. Three different combinations of blowers and residential furnaces were tested. The laboratory test results for blower power and airflow were combined with DOE2 models of building loads, models of air conditioner performance, standby power, and igniter, and combustion air blower power to determine potential energy and peak demand impacts. BUILDING TECHNOLOGIES OFFICE Recognizing Top Innovations in Building Science - The U.S. Department of Energy's

125

Building America Top Innovations 2013 Profile … High-Performance Furnace Blowers  

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

annual fuel utilization annual fuel utilization efficiency (AFUE) and seasonal energy efficiency ratio (SEER) and at real installed conditions. A testing program was undertaken at two laboratories to compare the performance of furnace blowers over a range of static pressure differences that included standard rating points and measured field test pressures. Three different combinations of blowers and residential furnaces were tested. The laboratory test results for blower power and airflow were combined with DOE2 models of building loads, models of air conditioner performance, standby power, and igniter and combustion air blower power to determine potential energy and peak demand impacts. BUILDING TECHNOLOGIES OFFICE Recognizing Top Innovations in Building Science - The U.S. Department of Energy's

126

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 Vepslinen; Karl Myhnen

2010-01-01T23:59:59.000Z

127

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

128

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

129

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...

130

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

131

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

132

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.

133

Warm Gas Cleanup  

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

Warm Gas Cleanup Warm Gas Cleanup NETL Office of Research and Development Project Number: FWP-2012.03.03 Task 5 Project Description The Environmental Protection Agency (EPA) has established strict regulations for the trace contaminant emissions from integrated gasification combined cycle (IGCC) systems. The Department of Energy (DOE) performance goals for trace contaminant removal were selected to meet or exceed EPA's standard limits for contaminants, as well as to avoid poisoning of: the catalysts utilized in making liquids from fuel gas the electrodes in fuel cells selective catalytic reduction (SCR) catalysts The objective of the NETL's ORD Warm Gas Cleanup project is to assist in achieving both DOE and EPA targets for trace contaminant capture from coal gasification, while preserving the high thermal efficiency of the IGCC system. To achieve this, both lab and pilot-scale research is underway to develop sorbents capable of removing the following contaminants from high temperature syngas (up to 550°F):

134

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 Btus 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

135

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.

136

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

137

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

138

HEATING, AIR-CONDITIONING AND REFRIGERATION DISTRIBUTORS INTERNATIONAL...  

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

of the updated Energy Conservation Standards for Air Conditioners, Furnaces and Heat Pumps. DOE EX Parte Memo.pdf More Documents & Publications 3rd Semi-Annual Report to...

139

global warming's six americas  

E-Print Network (OSTI)

Vehicles & Solar Panels 23 Regulating CO2 as a Pollutant 24 A 20 Percent National Renewable Energy Standard the spring and fall of 2012. Perceived Benefits and Costs of Reducing Fossil Fuel Use and Global Warming Introduction 5 The Six Americas Audience Segments 6 Changes in the Size of Segments 7 Perceived Benefits

Haller, Gary L.

140

Heat Waves, Global Warming, and Mitigation  

E-Print Network (OSTI)

Heat Waves, Global Warming, and Mitigation Ann E. Carlson*2008]HEAT WAVES, GLOBAL WARMING, AND MITIGATION 175 stroke2001). 2008]HEAT WAVES, GLOBAL WARMING, AND MITIGATION 177

Carlson, Ann E.

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "warm air furnace" 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

Global Warming, endogenous risk and irreversibility  

E-Print Network (OSTI)

The economics of global warming, Institute for InternationalEconomic Models of Global Warming, Cambridge, Mass. MITstochastic losses from global warming, Risk Analysis 16(2):

Fisher, Anthony C.; Narain, Urvashi

2002-01-01T23:59:59.000Z

142

4, 10591092, 2007 Global warming  

E-Print Network (OSTI)

BGD 4, 1059­1092, 2007 Global warming potential of agro-ecosystems S. Lehuger et al. Title Page Predicting the global warming potential of agro-ecosystems S. Lehuger, B. Gabrielle, E. Larmanou, P. Laville Correspondence to: S. Lehuger (simon.lehuger@grignon.inra.fr) 1059 #12;BGD 4, 1059­1092, 2007 Global warming

Paris-Sud XI, Université de

143

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.

144

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

145

R&D for technology to solve global warming  

Science Journals Connector (OSTI)

Global warming is a problem in which the combustion of coal, oil, and other fossil fuels causes the atmospheric concentrations of greenhouse gases, such as carbon dioxide (CO2), to increase. This results in mounting global air temperatures that lead to climatic change. Specifically, global warming will cause a rise in sea levels, changes in the rain-fall patterns, and other problems. In order to secure the route to solutions for global warming that requires new responses in ways that are compatible with economic growth, it is essential to achieve breakthroughs with innovative technologies. In addition to energ-related R&D, also important are R&D for CO2 absorption and fixation for fundamental solution to global warming. Japan has started the development of innovative environmental technologies, such as technologies for CO2 fixation and utilization.

K. Honjo

1996-01-01T23:59:59.000Z

146

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.

147

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.

148

Stay Warm in Your Apartment | Department of Energy  

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

Stay Warm in Your Apartment Stay Warm in Your Apartment Stay Warm in Your Apartment October 19, 2009 - 11:43am Addthis Eric Barendsen Energy Technology Program Specialist, Office of Energy Efficiency and Renewable Energy Yes, the Ghost of Winters Future has officially knocked on our front doors again. The leaves here in Washington, D.C., have started to turn toward their colorful crescendo, that spectacular finish before their end on the chilly ground. It makes me cold just thinking about it. Like me, you're probably not opening your windows much at night anymore. I'm holding out still, surrendering a little more of my beloved fresh air each night and dreading that first night when I have to pop the heater on. Last night, I only open my window about an inch. I guess that means it's time to think about locking out the cold air once and for all this year.

149

Stay Warm in Your Apartment | Department of Energy  

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

Stay Warm in Your Apartment Stay Warm in Your Apartment Stay Warm in Your Apartment October 19, 2009 - 11:43am Addthis Eric Barendsen Energy Technology Program Specialist, Office of Energy Efficiency and Renewable Energy Yes, the Ghost of Winters Future has officially knocked on our front doors again. The leaves here in Washington, D.C., have started to turn toward their colorful crescendo, that spectacular finish before their end on the chilly ground. It makes me cold just thinking about it. Like me, you're probably not opening your windows much at night anymore. I'm holding out still, surrendering a little more of my beloved fresh air each night and dreading that first night when I have to pop the heater on. Last night, I only open my window about an inch. I guess that means it's time to think about locking out the cold air once and for all this year.

150

The Return of Dr Strangelove The politics of climate engineering as a response to global warming  

E-Print Network (OSTI)

The Return of Dr Strangelove The politics of climate engineering as a response to global warming volcanic eruptions to counter the warming effects of carbon pollution. Engineering the planet's climate the air, where its concentration is 0.04 per cent, than from the exhaust of a coal-fired power plant. Sun

Green, Donna

151

Appliances and Commercial Equipment Standards  

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

Commercial Warm Air Furnaces Commercial Warm Air Furnaces Sign up for e-mail updates on regulations for this and other products The Department of Energy (DOE) has regulated the energy efficiency level of commercial warm air furnaces since 1994. Commercial warm air furnaces are self-contained oil-fired or gas-fired furnaces that are designed to supply heated air through ducts to spaces that require it. Commercial warm air furnaces are industrial equipment and have a maximum rated input capacity of 225,000 British thermal units (Btu) an hour or more. Recent Updates | Standards | Test Procedures | Waiver, Exception, and Exemption Information | Statutory Authority | Historical Information | Contact Information Recent Updates DOE published a request for information regarding energy conservation standards for commercial warm air furnaces. 78 FR 25627 (May 2, 2013). For more information, please see the rulemaking webpage.

152

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

153

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.

154

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)

Piorn, iga

2014-01-01T23:59:59.000Z

155

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

156

E-Print Network 3.0 - amplify high-latitude warming Sample Search...  

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

high latitudes, more than low albedo, helped main- tain the warm... of equilibrium, the loss of heat in high latitudes--mainly where cold continental air masses flow over the...

157

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

158

#AskEnergySaver: Air Sealing | Department of Energy  

Energy Savers (EERE)

the reason warm air rises. You should consider several factors before choosing which to air seal first, including which leaks are the largest, which are easiest to fix and the...

159

Tips: Air Ducts | Department of Energy  

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

Air Ducts Air Ducts Tips: Air Ducts June 24, 2013 - 7:23pm Addthis Air Ducts: Out of Sight, Out of Mind. The unsealed ducts in your attic and crawlspaces lose air, and uninsulated ducts lose heat -- wasting energy and money. Air Ducts: Out of Sight, Out of Mind. The unsealed ducts in your attic and crawlspaces lose air, and uninsulated ducts lose heat -- wasting energy and money. Your air ducts are one of the most important systems in your home, and if the ducts are poorly sealed or insulated they are likely contributing to higher energy bills. Your home's duct system is a branching network of tubes in the walls, floors, and ceilings; it carries the air from your home's furnace and central air conditioner to each room. Ducts are made of sheet metal, fiberglass, or other materials.

160

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

Note: This page contains sample records for the topic "warm air furnace" 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

Residential Forced Air System Cabinet Leakage and Blower Performance  

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

Residential Forced Air System Cabinet Leakage and Blower Performance Residential Forced Air System Cabinet Leakage and Blower Performance Title Residential Forced Air System Cabinet Leakage and Blower Performance Publication Type Report LBNL Report Number LBNL-3383E Year of Publication 2010 Authors Walker, Iain S., Darryl J. Dickerhoff, and William W. Delp Publisher Lawrence Berkeley National Laboratory City Berkeley Keywords air flow measurement, air leakage, blower power measurement, blowers, energy performance of buildings group, forced air systems, furnaces, indoor environment department, other, public interest energy research (pier) program, residential hvac Abstract This project evaluated the air leakage and electric power consumption of Residential HVAC components, with a particular focus on air leakage of furnace cabinets. Laboratory testing of HVAC components indicated that air leakage can be significant and highly variable from unit to unit - indicating the need for a standard test method and specifying maximum allowable air leakage in California State energy codes. To further this effort, this project provided technical assistance for the development of a national standard for Residential HVAC equipment air leakage. This standard is being developed by ASHRAE and is called "ASHRAE Standard 193P - Method of test for Determining the Air Leakage Rate of HVAC Equipment". The final part of this project evaluated techniques for measurement of furnace blower power consumption. A draft test procedure for power consumption was developed in collaboration with the Canadian General Standards Board: CSA 823 "Performance Standard for air handlers in residential space conditioning systems".

162

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

163

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

164

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

165

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

166

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

167

Minimising the global warming potential of clay based geopolymers  

Science Journals Connector (OSTI)

Abstract Production of Portland cement (PC) binders contributes substantially to global CO2 production and various bodies including the Intergovernmental Panel on Climate Change (IPCC) have identified geopolymers as alternative binders with the potential to reduce these emissions. The hypothesis of this research is to investigate whether this is a realistic proposition in the light of limited waste materials such as fly ash and ground granulated blast furnace slag commonly used as geopolymer precursors. The effect of use of natural clay minerals as alternative precursors on global warming potential (GWP) is investigated. Methods of designing mixes with the lowest possible GWP are presented and these are compared to the GWP of PC and currently available metakaolin based geopolymer binders. It is concluded that it is possible to reduce the GWP by approximately 40%, but other impacts may increase.

Andrew Heath; Kevin Paine; Marcelle McManus

2014-01-01T23:59:59.000Z

168

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

169

Warming alters the metabolic balance of ecosystems  

Science Journals Connector (OSTI)

...particular, it is unclear how global warming will affect the metabolic balance...change on key ecosystem services. global warming|carbon sequestration|carbon...for the ecological impacts of global warming on individual taxa is now unequivocal...

2010-01-01T23:59:59.000Z

170

Understanding Public Perceptions of Global Warming.  

E-Print Network (OSTI)

??In this dissertation, I investigate the determinants on Americans perceptions of global warming and individuals environmentally significant behaviors to reduce global warming. Specially, I examine (more)

Shao, Wanyun

2012-01-01T23:59:59.000Z

171

Rising Sea Levels Due to Global Warming Are Unstoppable  

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

Rising Sea Levels Rising Sea Levels Due to Global Warming Are Unstoppable Rising Sea Levels Due to Global Warming Are Unstoppable Mitigation can slow down but not prevent sea level rise for centuries to come August 5, 2013 Contact: Linda Vu, Lvu@lbl.gov, +1 510 495 2402 washington.jpg Because seawater absorbs heat more slowly than the atmosphere above it, our oceans won't feel the full impact of the greenhouse gases already in the air for hundreds of years. Warm water expands, raising sea levels. (Courtesy W. Washington) Select to enlarge. A reduction in greenhouse gas emissions could greatly lessen the impacts of climate change. However, the gases already added to the atmosphere ensure a certain amount of sea level rise to come, even if future emissions are reduced. A study by National Center for Atmospheric Research (NCAR)

172

Global Warming and Extreme Weather  

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

Global Warming and Extreme Weather Global Warming and Extreme Weather Speaker(s): Michael Wehner Date: November 28, 2006 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Surabi Menon Extreme weather events can have serious impacts on human and ecological systems. Changes in the magnitude and frequency of extreme weather associated with changes in the mean climate are likely the most serious consequence of human induced global warming. Understanding what the future portends is vital if society hopes to adapt to the very different world that awaits. In this talk, we will exploit simple extreme value theory to make predictions about the late 21st century climate. Current work on the relationship between global warming and the hurricane cycle will also be presented. The bottom line is that events that are considered rare today

173

The Psychology of Global Warming  

Science Journals Connector (OSTI)

The evidence in support of global warming and the lack of significant published evidence to the contrary provides an extraordinarily strong foundation for the scientific community's call for action on greenhouse gas emissions. However, public ...

Ben R. Newell; Andrew J. Pitman

2010-08-01T23:59:59.000Z

174

Global Warming: A Science Overview  

Science Journals Connector (OSTI)

Fossil fuels (i.e., coal, oil, and natural gas) provide about ... various control efforts and to the problem of global warming, which is now being considered by governments ... six key aspects of the scientific f...

Michael C. MacCracken

2001-01-01T23:59:59.000Z

175

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

176

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

177

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

178

Air-Conditioning Basics | Department of Energy  

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

Air-Conditioning Basics Air-Conditioning Basics Air-Conditioning Basics August 16, 2013 - 1:59pm Addthis Air conditioning is one of the most common ways to cool homes and buildings. How Air Conditioners Work Air conditioners employ the same operating principles and basic components as refrigerators. Refrigerators use energy (usually electricity) to transfer heat from the cool interior of the refrigerator to the relatively warm surroundings; likewise, an air conditioner uses energy to transfer heat from the interior space to the relatively warm outside environment. An air conditioner uses a cold indoor coil called the evaporator. The condenser, a hot outdoor coil, releases the collected heat outside. The evaporator and condenser coils are serpentine tubing surrounded by aluminum fins. This tubing is usually made of copper.

179

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

180

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 (nitricformicglycolic and nitricformicsugar) were evaluated based upon results from preliminary testing. Comparison of the two flowsheets among evaluation criteria indicated a preference towards the nitricformicglycolic flowsheet. Further evaluation of this flowsheet eliminated the formic acid1, and as a result, the nitricglycolic flowsheet was recommended for further testing. Based on the development of a roadmap for the nitricglycolic 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 nitricformic 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 nitricglycolic 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 ~300C-700C 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

Note: This page contains sample records for the topic "warm air furnace" 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

Air Conditioning | Department of Energy  

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

Conditioning Conditioning Air Conditioning July 1, 2012 - 6:28pm Addthis Air conditioners cost U.S. homeowners more than $11 billion each year, and regular maintenance can keep your air conditioner running efficiently. | Photo courtesy of ©iStockphoto/JaniceRichard Air conditioners cost U.S. homeowners more than $11 billion each year, and regular maintenance can keep your air conditioner running efficiently. | Photo courtesy of ©iStockphoto/JaniceRichard How does it work? An air conditioner uses energy -- usually electricity -- to transfer heat from the interior of your home to the relatively warm outside environment. Two-thirds of all homes in the United States have air conditioners. Air conditioners use about 5% of all the electricity produced in the United States, at an annual cost of more than $11 billion to homeowners. As a

182

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

183

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

184

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

185

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

186

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

187

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),...

188

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 Ramrez Argez

2008-10-01T23:59:59.000Z

189

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

190

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...

191

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

192

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...

193

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

194

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

195

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

196

PRINT ONLY: GLOBAL WARMING Alexeev V. A.  

E-Print Network (OSTI)

PRINT ONLY: GLOBAL WARMING Alexeev V. A. Global Warming: 0.6°C or Less? [#1035] The peculiarities of global warming on the Earth during the last century are discussed. Lunar and Planetary Science XXXVIII (2007) full818.pdf #12;GLOBAL WARMING: 0.6 OR LESS? V.A.Alexeev; Vernadsky Institute of Geochemistry

Rathbun, Julie A.

197

Case Study #1 "The Global Warming Debate"  

E-Print Network (OSTI)

CHEM 001A Case Study #1 "The Global Warming Debate" Global warming is one of the most contentious issues of our time. There is an ongoing debate about whether global warming is caused by human activity.S., and because the scientific evidence used to determine if global warming is man-made is so difficult

Reed, Christopher A.

198

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

199

It's Not Too Late to Change Global Warming's Course - NERSC Science News  

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

It's Not Too Late to It's Not Too Late to Change Global Warming's Course It's Not Too Late to Change Global Warming's Course Simulations Show That Cuts in Greenhouse Gas Emissions Would Save Arctic Ice, Reduce Sea Level Rise October 27, 2009 | Tags: Climate Research mitigation1.jpg Computer simulations show the extent that average air temperatures at Earth's surface could warm by 2080-2099 compared to 1980-1999, if (top) greenhouse gases emissions continue to climb at current rates, or if (middle) society cuts emissions by 70 percent. In the latter case, temperatures rise by less than 2°C (3.6°F) across nearly all of Earth's populated areas (the bottom panel shows warming averted). However, unchecked emissions could lead to warming of 3°C (5.4°F) or more across parts of Europe, Asia, North America, and Australia. (Image: Geophysical

200

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

Note: This page contains sample records for the topic "warm air furnace" 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

Cosmic Rays and Global Warming  

E-Print Network (OSTI)

It has been claimed by others that observed temporal correlations of terrestrial cloud cover with `the cosmic ray intensity' are causal. The possibility arises, therefore, of a connection between cosmic rays and Global Warming. If true, the implications would be very great. We have examined this claim to look for evidence to corroborate it. So far we have not found any and so our tentative conclusions are to doubt it. Such correlations as appear are more likely to be due to the small variations in solar irradiance, which, of course, correlate with cosmic rays. We estimate that less than 15% of the 11-year cycle warming variations are due to cosmic rays and less than 2% of the warming over the last 35 years is due to this cause.

T. Sloan; A W Wolfendale

2007-06-28T23:59:59.000Z

202

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

203

Measure Guideline: Supplemental Dehumidification in Warm-Humid Climates  

SciTech Connect

This document covers a description of the need and applied solutions for supplemental dehumidification in warm-humid climates, especially for energy efficient homes where the sensible cooling load has been dramatically reduced. In older homes in warm-humid climates, cooling loads are typically high and cooling equipment runs a lot to cool the air. The cooling process also removes indoor moisture, reducing indoor relative humidity. However, at current residential code levels, and especially for above-code programs, sensible cooling loads have been so dramatically reduced that the cooling system does not run a lot to cool the air, resulting in much less moisture being removed. In these new homes, cooling equipment is off for much longer periods of time especially during spring/fall seasons, summer shoulder months, rainy periods, some summer nights, and some winter days. In warm-humid climates, those long off periods allow indoor humidity to become elevated due to internally generated moisture and ventilation air change. Elevated indoor relative humidity impacts comfort, indoor air quality, and building material durability. Industry is responding with supplemental dehumidification options, but that effort is really in its infancy regarding year-round humidity control in low-energy homes. Available supplemental humidity control options are discussed. Some options are less expensive but may not control indoor humidity as well as more expensive and comprehensive options. The best performing option is one that avoids overcooling and avoids adding unnecessary heat to the space by using waste heat from the cooling system to reheat the cooled and dehumidified air to room-neutral temperature.

Rudd, A.

2014-10-01T23:59:59.000Z

204

Development of an air-atomized oil burner  

SciTech Connect

A new concept for the design of a residential oil burner is presented involving a low pressure, air atomizing nozzle. Advantages of this approach, relative to conventional, pressure atomized burners include: ability to operate at very low excess air levels without smoke, ability to operate at low (and possibly variable) rates, reduced boiler fouling, and low NO{sub x}. The nozzle used is a low pressure, airblast atomizer which can achieve fuel spray drop sizes similar to conventional nozzles and very good combustion performance with air pressure as low as 5 inches of water (1.24 kPa). A burner head has been developed for this nozzle and combustion test results are presented in a wide variety of equipment including cast iron and steel boilers, warm air furnaces, and water heaters over the firing rate range 0.25 gph to 1.0 gph (10 to 41 kW). Beyond the nozzle and combustion head the burner system must be developed and two approaches have been taken. The first involves a small, brushless DC motor/fan combination which uses high fan speed to achieve air pressures from 7 to 9 inches of water (1.74 to 2.24 kPa). Fuel is delivered to the atomizer at less than 1 psig (6.9 kPa) using a solenoid pump and flow metering orifice. At 0.35 gph (14 kW) the electric power draw of this burner is less than 100 watts. In a second configuration a conventional motor is used with a single stage fan which develops 5 to 6 inches of water pressure (1.24 to 1.50 kPa) at similar firing rates. This burner uses a conventional type fuel pump and metering orifice to deliver fuel. The fuel pump is driven by the fan motor, very much like a conventional burner. This second configuration is seen as more attractive to the heating industry and is now being commercialized. Field tests with this burner have been conducted at 0.35 gph (14 kW) with a side-wall vented boiler/water storage tank combination.

Butcher, T.A.; Celebi, Y.

1996-06-01T23:59:59.000Z

205

Global Warming Potential and Global Warming Commitment Concepts in the Assessment of Climate Radiative Forcing Effects  

Science Journals Connector (OSTI)

The Global Warming Potential (GWP) and Radiative Forcing (RF ... CS) and Individual (IS) schemes. The Global Warming Commitment (GWC) is calculated by the...

Igor L. Karol; Victor A. Frolkis

2000-01-01T23:59:59.000Z

206

Energy audit of three energy-conserving devices in a steel-industry demonstration program. Task I. Hague forge furnaces. Final report  

SciTech Connect

A program to demonstrate to industry the benefits of installing particular types of energy-conserving devices and equipment was carried out. One of these types of equipment and the results obtained under production conditions in commercial plants are described. The equipment under consideration includes improved forge furnaces and associated heat-recovery components. They are used to heat steel to about 2300 F prior to hot forging. The energy-conserving devices include improved insulation, automatic air-fuel ratio control, and a ceramic recuperator that recovers heat from hot combustion gases and delivers preheated air to high-temperature recirculating burners. Twelve Hague furnaces and retrofit packages were purchased and installed by eleven host forge shops that agree to furnish performance data for the purpose of demonstrating the energy and economic savings that can be achieved in comparison with existing equipment. Fuel savings were reported by comparing the specific energy consumption (Btu's per pound of steel heated) for each Hague furnace with that of a comparison furnace. Economic comparisons were made using payback period based on annual after-tax cash flow. Payback periods for the Hague equipment varied from less than two years to five years or more. In several cases, payback times were high only because the units were operated at a small fraction of their available capacity.

Lownie, H.W.; Holden, F.C.

1982-06-01T23:59:59.000Z

207

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

208

GLOBAL WARMING THE GREENHOUSE EFFECT  

E-Print Network (OSTI)

GLOBAL WARMING THE GREENHOUSE EFFECT AND YOUR FAMILY'S CONTRIBUTION TO IT Stephen E. Schwartz GREENHOUSE EFFECT #12;GLOBAL ENERGY BALANCE Global and annual average energy fluxes in watts per square meter about it.But nobody does anything about it. ­ Mark Twain­ Mark Twain Now with the greenhouse effect, we

Schwartz, Stephen E.

209

GLOBAL WARMING THE GREENHOUSE EFFECT  

E-Print Network (OSTI)

GLOBAL WARMING THE GREENHOUSE EFFECT AND YOUR FAMILY'S CONTRIBUTION TO IT Stephen E. Schwartz September 22, 2004 http://www.ecd.bnl.gov/steve/schwartz.html #12;#12;THE GREENHOUSE EFFECT #12;GLOBAL does anything about it. ­ Mark Twain­ Mark Twain Now with the greenhouse effect, we ARE doing something

Schwartz, Stephen E.

210

Demonstration of oxygen-enriched air staging at Owens-Brockway glass containers. Quarterly technical progress report for the period August 1, 1996--October 31, 1996  

SciTech Connect

The objective of the program is to demonstrate the use of a previously developed combustion modification technology to reduce NO, emissions from sideport regenerative container glass melters. This technology, known as oxygen-enriched air staging (OEAS), has been demonstrated, and is now being commercialized for endport container glass furnaces. This report focuses on full furnace parametric and long-term testing.

Rue, D.; Abbasi, H.

1997-03-01T23:59:59.000Z

211

Semicoke production and quality at Chinese vertical SJ furnaces  

SciTech Connect

In Russia there has been little interest on the thermal processing of non-sintering coal. However it may be used to obtain many special types of coke and semicoke that are necessary for processes other than blast furnace smelting and employing small metallurgical coke fractions that do not meet the relevant quality requirements. China has recently made great progress in developing the thermal processing of coal (mainly energy coal) to obtain a highly effective product, semicoke, primarily used in metallurgy and adsorption process. The article considers the operation of a Chinese semicoking plant equipped with vertical SJ furnaces. The plant is in the Shenmu district of Shanxi province (Inner Mongolia). The enterprise includes two furnaces of total output of about 100,000 t/yr of semicoke.

V.M. Strakhov; I.V. Surovtseva; A.V. D'yachenko; V.M. Men'shenin [Kuznetsk Center, Eastern Coal-Chemistry Institute (Russian Federation)

2007-05-15T23:59:59.000Z

212

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 (nitricformicglycolic and nitricformicsugar) were evaluated based upon results from preliminary testing. Comparison of the two flowsheets among evaluation criteria indicated a preference towards the nitricformicglycolic flowsheet. Further research and development of this flowsheet eliminated the formic acid, and as a result, the nitricglycolic flowsheet was recommended for further testing. Based on the development of a roadmap for the nitricglycolic 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 nitricformic acid flowsheet melter test (unbubbled) to baseline the CEF cold cap and vapor space data to the benchmark melter flammability models; ? Phase II - A nitricglycolic 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 ~300-750C 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

213

Reevaluating the Role of the Saharan Air Layer in Atlantic Tropical Cyclogenesis and Evolution  

Science Journals Connector (OSTI)

The existence of the Saharan air layer (SAL), a layer of warm, dry, dusty air frequently present over the tropical Atlantic Ocean, has long been appreciated. The nature of its impacts on hurricanes remains unclear, with some researchers arguing ...

Scott A. Braun

2010-06-01T23:59:59.000Z

214

Optical processing furnace with quartz muffle and diffuser plate  

DOE Patents (OSTI)

An optical furnace for annealing a process wafer comprising a source of optical energy, a quartz muffle having a door to hold the wafer for processing, and a quartz diffuser plate to diffuse the light impinging on the quartz muffle; a feedback system with a light sensor located in the door or wall of the muffle is also provided for controlling the source of optical energy. The quartz for the diffuser plate is surface etched (to give the quartz diffusive qualities) in the furnace during a high intensity burn-in process.

Sopori, Bhushan L. (Denver, CO)

1995-01-01T23:59:59.000Z

215

An Explanation of Global Warming without Supercomputing  

E-Print Network (OSTI)

An Explanation of Global Warming without Supercomputing K. Miyazaki E-mail: miyazakiro that the climate sensitivity never exceeds 6 C. Consequently, the anthropogenic global warming is severely limited be calculated in simple terms. Global warming is like that." However, there will be not a few physicists who do

216

An Explanation of Global Warming without Supercomputing  

E-Print Network (OSTI)

An Explanation of Global Warming without Supercomputing (revised version) K. Miyazaki E that the anthropogenic global warming is severely limited because the Earth is a water planet. 1 Introduction Now,2,3] on this anthropogenic global warming (AGW) is essentially based on the results of elaborate and enormous computer

217

Air Conditioning  

Science Journals Connector (OSTI)

Air Conditioning ... CHEMISTS and engineers use air conditioning as a valuable tool in more than two hundred industries. ... Air conditioning is a tool with many facets. ...

MARGARET INGELS

1938-02-10T23:59:59.000Z

218

The Global Warming Debate: A July Hottest Month on Record in U.S.--Warming and  

E-Print Network (OSTI)

The Global Warming Debate: A Case Study July Hottest Month on Record in U.S.--Warming and Drought was the hottest month on record in the United States, perhaps due to a combination of global warming the fact that there is more than just natural variability playing a role: Global warming from human

Reed, Christopher A.

219

Improving the System Life of Basic Oxygen and Electric Arc Furnace Hoods, Roofs, and Side Vents  

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

This factsheet describes the benefits of a high-performance aluminum bronze alloy to basic oxygen furnace and electric arc furnace components such as hoods, roofs, and side vents.

220

Demonstration of oxygen-enriched air staging at Owens-Brockway Glass Containers. Technical progress report, August 1, 1995--July 31, 1996  

SciTech Connect

The objective of the program is to demonstrate the use of a previously developed combustion modification technology to reduce NO, emissions from sideport regenerative container glass melters. This technology, known as oxygen-enriched air staging (OEAS), has been demonstrated, and is now being commercialized, for endport container glass furnaces. A 17-month development program has been established with specific objectives to: (1) acquire baseline operating data on the host sideport furnace in Vernon, California, (2) evaluate secondary oxidant injection strategies based on earlier endport furnace results and through modeling of a single port pair, (3) retrofit and test one port pair (the test furnace has six port pairs) with a flexible OEAS system, and select the optimal system configuration, (4) use the results from tests with one port pair to design, retrofit, and test OEAS on the entire furnace (six port pairs), and (5) analyze test results, prepare report, and finalize the business plan to commercialize OEAS for sideport furnaces. The host furnace for testing in this program is an Owens-Brockway 6-port pair sideport furnace in Vernon, California producing 325-ton/d of amber container glass. The baseline NO{sub x} level of this optimized furnace is about 4.0 lb/ton of glass. An anticipated NO{sub x}, reduction of 50% will lower the NO{sub x} production level to below 2 lb/ton. Secondary oxidant staging techniques being considered include oxygen-enriched ambient air staging (OEAS) and oxygen staging (OS).

Rue, D.; Abbasi, H.

1996-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "warm air furnace" 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

Demonstration of oxygen-enriched air staging at Owens-Brockway glass containers. Quarterly technical progress report, November 1, 1996--January 31, 1997  

SciTech Connect

The objective of the program is to demonstrate the use of a previously developed combustion modification technology to reduce NO, emissions from sideport regenerative container glass melters. This technology, known as oxygen-enriched air staging (OEAS), has been demonstrated, and is now being commercialized, for endport container glass furnaces. A 17-month development program has been established with specific objectives to: (1) acquire baseline operating data on the host sideport furnace in Vernon, California, (2) evaluate secondary oxidant injection strategies based on earlier endport furnace results and through modeling of a single port pair, (3) retrofit and test one port pair (the test furnace has six port pairs) with a flexible OEAS system, and select the optimal system configuration, (4) use the results from tests with one port pair to design, retrofit, and test OEAS on the entire furnace (six port pairs), and (5) analyze test results, prepare report, and finalize the business plan to commercialize OEAS for sideport furnaces. The host furnace for testing in this program is an Owens-Brockway 6-port pair sideport furnace in Vernon, California producing 325-ton/d of amber container glass. The baseline NO{sub x} level of this optimized furnace is about 4.0 lb/ton of glass. An anticipated NO{sub x}, reduction of 50% will lower the NO{sub x} production level to below 2 lb/ton. Secondary oxidant staging techniques being considered include oxygen-enriched ambient air staging (OEAS) and oxygen staging (OS).

Rue, D.; Abbasi, H.

1997-03-01T23:59:59.000Z

222

NERSC Calculations Provide Independent Confirmation of Global Land Warming  

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

Calculations Calculations Provide Independent Confirmation of Global Land Warming Since 1901 NERSC Calculations Provide Independent Confirmation of Global Land Warming Since 1901 September 9, 2013 | Tags: Climate Research, Hopper Contact: Jon Bashor, jbashor@lbl.gov, 510-486-5849 campo.jpg These maps show the changes in air temperatures over land as measured using thermometers (left side) and as calculated by the 20th Century Reanalysis project (left side). While more than 80 percent of the observed variation is captured by the computer model, the results show interesting differences in some regions such as the midwestern United States, Argentina and eastern Brazil. The differences may be due previously unrecognized issues with the pressure observations, variations in land use and land cover over time,

223

DOE Publishes Notice of Proposed Rulemaking for Residential Furnace Fans Energy Conservation Standards  

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

The Department of Energy has published a notice of proposed rulemaking regarding energy conservation standards for residential furnace fans.

224

5 - Consequences of Global Warming  

Science Journals Connector (OSTI)

Abstract This chapter looks at different areas of risk associated with the onset of global warming. The first risk area refers to pathogens and diseases. We first discuss perspectives on disease spread, and focus on the role played by globalization and the current livestock revolution strongly affected by large-scale processes of urbanization. We then discuss zoonoses, or diseases that are passed between humans and other animals, and identify 11 kinds of zoonoses associated with global warming. Although not a zoonose, malaria is also discussed. Patterns of transmission associated with warming tend to be poleward, and small changes in temperature can produce large changes in disease vectors to higher latitudes. A brief presentation of the history of malaria shows how it has had a substantial effect on conflicts in the past, particularly the US Civil War (18611865) and World War I. It has been famously suggested that World War I ended because of the spread of Swine Flu, decimating the Axis troops and rendering many units unable to continue fighting. AIDS is presented as a contemporary example of the way in which diseases can profoundly undermine the capacity of a country to provide security and state leadership, and undercut international peacekeeping activities.

John P. Crank; Linda S. Jacoby

2015-01-01T23:59:59.000Z

225

Hot News on Warming Text from The Washington Post Monday, August 28, 2000: Page A18 IF YOU"RE trying to decide whether to be an optimist or a pessimist on global warming, recent news is enough to leave  

E-Print Network (OSTI)

. It has been a subject of contention because it is a byproduct of burning fossil fuels, such as coal on air pollution, which the scientists argue should be attractive action in all parts of the world, independent of concerns about warming, because of the health benefits of cleaner air. That optimistic scenario

226

Computational fluid dynamics combustion modelling--A comparison of secondary air system designs  

SciTech Connect

A newly developed computer simulation of the combustion process in a kraft recovery furnace uses computational fluid dynamics to model the processes of mass, momentum, and energy transport. This paper describes two models and a presentation of the flow fields obtained. The results predict a dramatic improvement in combustion behavior using a refined secondary air system with reduction in particulate carryover, enhanced operating temperatures, more uniform gas flow, and less carbon monoxide at the furnace exit.

Jones, A.K. (ABB Combustion Engineering Systems, Ottawa, Ontario (Canada)); Chapman, P.J. (ABB Combustion Engineering Systems, Windsor, CT (United States))

1993-07-01T23:59:59.000Z

227

High temperature furnaces for small and large angle neutron scattering of disordered materials  

E-Print Network (OSTI)

725 High temperature furnaces for small and large angle neutron scattering of disordered materials and small angle neutron scattering (SANS) experiments respectively. They are vacuum furnaces with a thin maintained in a tantalum box. In a neutron beam, the furnaces produce a very low scattering level (without

Boyer, Edmond

228

Electrode Arrangement As Substitute Bottom For An Electrothermic Slag Smelting Furnace.  

DOE Patents (OSTI)

The electrode arrangement uses vertically oriented electrodes with side wall contacts for an electrothermic smelting furnace for aluminum production. The side wall contacts are radially moveable into the furnace to compensate for wear on the contacts. The side wall contacts can be hollow to allow a slag forming charge to be fed to the furnace.

Aune, Jan Arthur (Enebakk, NO); Brinch, Jon Christian (Oslo, NO); Johansen, Kai (Kristiansand, NO)

2005-12-27T23:59:59.000Z

229

Optical processing furnace with quartz muffle and diffuser plate  

DOE Patents (OSTI)

An optical furnace for annealing a process wafer comprising a source of optical energy, a quartz muffle having a door to hold the wafer for processing, and a quartz diffuser plate to diffuse the light impinging on the quartz muffle; a feedback system with a light sensor located in the wall of the muffle is also provided for controlling the source of optical energy.

Sopori, Bhushan L. (Denver, CO)

1996-01-01T23:59:59.000Z

230

Coke mineral transformations in the experimental blast furnace  

SciTech Connect

Blast furnace efficiency may be improved by optimizing coke reactivity. Some but not all forms of mineral matter in the coke modify its reactivity, but changes in mineral matter that occur within coke while in the blast furnace have not been fully quantified. To determine changes in mineral matter forms in the blast furnace, coke samples from a dissection study in the LKAB experimental blast furnace (EBF) were characterized using SEM/EDS analysis, EPMA (microprobe), and low-temperature ashing/quantitative XRD analysis. Variations in alkali concentration, particularly potassium, dominated the compositional changes. At high concentrations of potassium, the mineral matter was largely potassium-bearing but even more potassium was diffused throughout the coke and not associated with mineral matter. There was little difference in potassium concentration between the core and surface of the coke pieces, suggesting that potassium diffused rapidly through the whole coke. Iron, calcium, silicon, and aluminum concentrations were relatively constant in comparison, although the mineralogy of all elements changed significantly with changing temperature. 23 refs., 20 figs., 9 tabs.

Kelli Kazuberns; Sushil Gupta; Mihaela Grigore; David French; Richard Sakurovs; Mats Hallin; Bo Lindblom; Veena Sahajwalla [University of New South Wales, Sydney, NSW (Australia). Cooperative Research Centre for Coal in Sustainable Development (CCSD)

2008-09-15T23:59:59.000Z

231

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

232

Experimenting with concentrated sunlight using the DLR solar furnace  

SciTech Connect

The high flux solar furnace that is operated by the Deutsche Forschungsanstalt fuer Luft- und Raumfahrt (DLR) at Cologne was inaugurated in June 1994 and we are now able to look back onto one year of successful operation. The solar furnace project was founded by the government of the State Northrhine Westfalia within the Study Group AG Solar. The optical design is a two-stage off-axis configuration which uses a flat 52 m{sup 2} heliostat and a concentrator composed of 147 spherical mirror facets. The heliostat redirects the solar light onto the concentrator which focuses the beam out of the optical axis of the system into the laboratory building. At high insolation levels (>800W/m{sup 2}) it is possible to collect a total power of 20 kW with peak flux densities of 4 MW/m{sup 2}. Sixteen different experiment campaigns were carried out during this first year of operation. The main research fields for these experiments were material science, component development and solar chemistry. The furnace also has its own research program leading to develop sophisticated measurement techniques like remote infrared temperature sensing and flux mapping. Another future goal to be realized within the next five years is the improvement of the performance of the furnace itself. 6 refs., 9 figs., 1 tab.

Neumann, A.; Groer, U. [Deutsche Forschungsanstalt fuer Luft- und Raumfahrt Linder Hoehe, Koeln (Germany)] [Deutsche Forschungsanstalt fuer Luft- und Raumfahrt Linder Hoehe, Koeln (Germany)

1996-10-01T23:59:59.000Z

233

Warm or Steaming Ground | Open Energy Information  

Open Energy Info (EERE)

Warm or Steaming Ground Warm or Steaming Ground Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Warm or Steaming Ground Dictionary.png Warm or Steaming Ground: An area where geothermal heat is conducted to the earth's surface, warming the ground and sometimes causing steam to form when water is present. Other definitions:Wikipedia Reegle Modern Geothermal Features Typical list of modern geothermal features Hot Springs Fumaroles Warm or Steaming Ground Mudpots, Mud Pools, or Mud Volcanoes Geysers Blind Geothermal System Steam rising from the ground at Eldvorp, a 10 km row of craters, in Southwestern Iceland. http://www.visiticeland.com/SearchResults/Attraction/eldvorp Warm or steaming ground is often an indicator of a geothermal system beneath the surface. In some cases a geothermal system may not show any

234

Chimneys: Warm and Cozy or Easy Exit for Your Heat? | Department of Energy  

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

Chimneys: Warm and Cozy or Easy Exit for Your Heat? Chimneys: Warm and Cozy or Easy Exit for Your Heat? Chimneys: Warm and Cozy or Easy Exit for Your Heat? January 12, 2010 - 10:21am Addthis Drew Bittner Web Manager, Office of Energy Efficiency and Renewable Energy Both of my childhood homes featured fireplaces. If you've had one, you know how terrific they can be-great places to bask on cold winter nights, an easy opportunity to toast marshmallows, picturesque, undeniably a pleasure in the house that has one. However, fireplaces have chimneys...and chimneys can be problems when it comes to home energy efficiency. For one thing, many people do not take care to close their chimney flue when there is no fire. This means warm air has an easy exit from your home; you have a big hole in your roof, after all, and warm air will take advantage of that. Ditto cold air in the

235

Soil degradation, global warming and climate impacts  

E-Print Network (OSTI)

will demonstrate one methodology for assessing the potential large-scale impacts of soil degradation on African climates and water resources. In addition it will compare and contrast these impacts to those expected from global warming and compare impacts for differ...- ent watershed regions on the continent. 2. METHODS In order to make a similar comparison between pro- jected climate change scenarios due to global warming Inter-Research 2001 *E-mail: feddema@ku.edu Soil degradation, global warming and climate...

Feddema, Johannes J.; Freire, Sergio Carneiro

2001-01-01T23:59:59.000Z

236

2 - What Is Global Warming?  

Science Journals Connector (OSTI)

Abstract In this chapter, we introduce students to the basic notion of global warming. We begin with a discussion of the historical ordinariness of global temperature swings, reviewing patterns of temperature changes across glaciations in the most recent glacial period. This is followed by a discussion of the nature of greenhouse gases, how they heat the planet, and the centrality of CO2 in the production of weather. The earths energy budget is presented as a chart that illustrates how various elements of the planet and its atmosphere interact to arrive at average temperatures. Following this is a discussion of human-created sources of greenhouse gases heating the planet, and here we introduce the concept of climate forcings, or external variables that are responsible for causing global temperature increases (or decreases). Primary and secondary feedbacks are shown as mechanisms in which warming, once it reaches a certain level, tends to become self-fulfilling, increasing the rate and level of heating beyond human capacity to intervene. Critical tipping points, or points at which fundamental changes in the climate will occur, are followed by a discussion of climate sensitivity, which is the assessment of the amount of temperature increase associated with increments of greenhouse gases. Finally, we ask how hot will it get, and close with a discussion of overall heating capacity for short- and long-term periods and a discussion of the duration of greenhouse gases, once introduced into the atmosphere.

John P. Crank; Linda S. Jacoby

2015-01-01T23:59:59.000Z

237

The political economy of global warming.  

E-Print Network (OSTI)

??The science is unequivocal: the Earths biosphere is approaching global warming tipping points which, if passed, will become irreversible, taking the planet on a trajectory (more)

Weston, Delys E.

2012-01-01T23:59:59.000Z

238

Hotel energy use contributes to global warming.  

E-Print Network (OSTI)

??Before learning about the consequences of global warming and the efforts hotels are making to reverse the effects, it is important to get a better (more)

Faja, Christine

2007-01-01T23:59:59.000Z

239

Heat Waves, Global Warming, and Mitigation  

E-Print Network (OSTI)

Heat Waves, Global Warming, and Mitigation Ann E. Carlson*II. HEAT WAVE DEFINITIONS .. A . HCHANGE AND HEAT WAVES .. CLIMATE III. IV. HEAT

Carlson, Ann E.

2008-01-01T23:59:59.000Z

240

Warm Forming of Aluminum?AMD 307  

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

controlled conditions * Transition to future projects (e.g. warm forming of magnesium) * Lead to the development of design rules for WF tooling * Be flexible allowing...

Note: This page contains sample records for the topic "warm air furnace" 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

Abating Global Warming for Fun and Profit  

Science Journals Connector (OSTI)

Abating global warming is generally profitable, without counting the avoided cost of adapting, or failing to adapt, to possible climatic change.

A. B. Lovins

1991-01-01T23:59:59.000Z

242

ARM - Greenhouse Effect and Global Warming  

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

Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox Lesson Plans Greenhouse Effect and Global Warming The Greenhouse Effect refers to a naturally occurring...

243

Heat Waves, Global Warming, and Mitigation  

E-Print Network (OSTI)

Heat Waves, Global Warming, and Mitigation Ann E. Carlson*II. HEAT WAVE DEFINITIONS .. A . HW aves B. Heat-related

Carlson, Ann E.

2008-01-01T23:59:59.000Z

244

Exergy transfer analysis of an aluminum holding furnace  

Science Journals Connector (OSTI)

Abstract This study presents the unsteady exergy transfer analysis of an aluminum holding furnace with new heating resistance scheme. This holding system consists of four multilayer refractory walls and one resistance heating system which is responsible of maintaining the appropriate aluminum temperature and composition for further casting. The purpose of this analysis is to understand and identify heat losses and irreversibilities of the holding process of an aluminum furnace by means of the First and Second Law of Thermodynamics. In this study, bi-dimensional temperature and exergy fields during heat and exergy transfer processes are presented. The exergy balance is completely computed for this system, obtaining: exergy transfer, exergy variation rate, and destroyed exergy rate.

Luis Acevedo; Sergio Usn; Javier Uche

2015-01-01T23:59:59.000Z

245

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

246

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

247

Background: Global Warming, 2009 1. Unequivocally, the climate is warming. Natural systems are affected.  

E-Print Network (OSTI)

Background: Global Warming, 2009 1. Unequivocally, the climate is warming. Natural systems are affected. 2. Very likely (>90% certainty), humans are causing most of the warming. 3. No single technology are very likely to impose net annual costs, which will increase over time as global temperatures increase

Minnesota, University of

248

Compressed Air  

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

BPA Utility Reimbursement Programs for Compressed Air Projects Customer Proposal Template Measurement & Verification Plan for Compressed Air CA 2006-15 A template for utilities to...

249

FURNACE INJECTION OF ALKALINE SORBENTS FOR SULFURIC ACID CONTROL  

SciTech Connect

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

Gary M. Blythe

2001-11-06T23:59:59.000Z

250

Time and Temperature Test Results for PFP Thermal Stabilization Furnaces  

SciTech Connect

The national standard for plutonium storage acceptability (standard DOE-STD-3013-99, generally known as ''the 3013 standard'') has been revised to clarify the requirement for processes that will produce acceptable storage materials. The 3013 standard (Reference 1) now states that ''Oxides shall be stabilized by heating the material in an oxidizing atmosphere to a Material Temperature of at least 950 C (1742 F) for not less than 2 hours.'' The process currently in use for producing stable oxides for storage at the Plutonium Finishing Plant (PFP) heats a furnace atmosphere to 1000 C and holds it there for 2 hours. The temperature of the material being stabilized is not measured directly during this process. The Plutonium Process Support Laboratories (PPSL) were requested to demonstrate that the process currently in use at PFP is an acceptable method of producing stable plutonium dioxide consistently. A spare furnace identical to the production furnaces was set up and tested under varying conditions with non-radioactive surrogate materials. Reference 2 was issued to guide the testing program. The process currently in use at the PFP for stabilizing plutonium-bearing powders was shown to heat all the material in the furnace to at least 950 C for at least 2 hours. The current process will work for (1) relatively pure plutonium dioxide, (2) dioxide powders mixed with up to 20 weight percent magnesium oxide, and (3) dioxide powders with up to 11 weight percent magnesium oxide and 20 weight percent magnesium nitrate hexahydrate. Time and temperature data were also consistent with a successful demonstration for a mixture containing 10 weight percent each of sodium and potassium chloride; however, the molten chloride salts destroyed the thermocouples in the powder and temperature data were unavailable for part of that run. These results assume that the current operating limits of no more than 2500 grams per furnace charge and a powder height of no more than 1.5 inches remain in effect, although deeper powder beds (up to 2 inches) also yielded temperatures of greater than 950 C for longer than 2 hours.

COMPTON, J.A.

2000-08-09T23:59:59.000Z

251

The Curious Case of Indian Ocean Warming  

Science Journals Connector (OSTI)

Recent studies have pointed out an increased warming over the Indian Ocean warm pool (the central-eastern Indian Ocean characterized by sea surface temperatures greater than 28.0C) during the past half-century, although the reasons behind this ...

Mathew Koll Roxy; Kapoor Ritika; Pascal Terray; Sbastien Masson

2014-11-01T23:59:59.000Z

252

WHAT'S IN A NAME? GLOBAL WARMING VERSUS CLIMATE CHANGE  

E-Print Network (OSTI)

WHAT'S IN A NAME? GLOBAL WARMING VERSUS CLIMATE CHANGE May 2014 #12;What's In A Name? Global Warming vs. Climate Change 1 TABLE OF CONTENTS PREFACE NATIONAL SURVEY STUDY 2: GLOBAL WARMING VS. CLIMATE CHANGE............................ 10 Is global

Haller, Gary L.

253

Projected range contractions of montane biodiversity under global warming  

Science Journals Connector (OSTI)

...of montane biodiversity under global warming Frank A. La Sorte 1 * Walter...are likely to experience under global warming and highlight the need for additional...extinction risk|geographical range|global warming|mountain biodiversity| 1...

2010-01-01T23:59:59.000Z

254

Warming will affect phytoplankton differently: evidence through a mechanistic approach  

Science Journals Connector (OSTI)

...Although the consequences of global warming in aquatic ecosystems are only...populations in the context of global warming focus mainly on allometric relationships...and it has been proposed that global warming will benefit small-sized phytoplankton...

2011-01-01T23:59:59.000Z

255

Warming alters community size structure and ecosystem functioning  

Science Journals Connector (OSTI)

...37-49, 08003 Barcelona, Spain Global warming can affect all levels of biological...structure|ecosystem functioning|global warming|body mass|size spectrum...The ecological implications of global warming have been documented across many...

2012-01-01T23:59:59.000Z

256

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

257

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

258

Improved Heat Transfer and Performance of High Intensity Combustion Systems for Reformer Furnace Applications  

E-Print Network (OSTI)

of the above premise. The application of vortex stabilized high intensity burners for reformer furnaces in the petrochemical industry is then reviewed and emphasized....

Williams, F. D. M.; Kondratas, H. M.

1983-01-01T23:59:59.000Z

259

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

260

Co-gasification of biomass with coal and oil sands coke in a drop tube furnace.  

E-Print Network (OSTI)

??Chars were obtained from individual fuels and blends with different blend ratios of coal, coke and biomass in Drop Tube Furnace at different temperatures. Based (more)

Gao, Chen

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "warm air furnace" 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

Theoretical and experimental foundations for preparing coke for blast-furnace smelting  

SciTech Connect

This article examines the preparation of coke for blast-furnace smelting by a method that most fully meets the requirements of blast-furnace technology: screening of the -36 mm fraction, the separation of nut coke of the 15-36 mm fraction, and its charging into the furnace in a mixture with the iron-ore-bearing charge components. An analysis is made of trial use of coke of the Premium class on blast furnace No. 5 at the Enakievo Metallurgical Plant. Use of this coke makes it possible to reduce the consumption of skip coke by 3.2-4.1%.

A.L. Podkorytov; A.M. Kuznetsov; E.N. Dymchenko; V.P. Padalka; S.L. Yaroshevskii; A.V. Kuzin [Enakievo Metallurgical Plant, Enakievo (Ukraine)

2009-05-15T23:59:59.000Z

262

Characterization of Coke Properties at Tuyere Level of an Operating Blast Furnace.  

E-Print Network (OSTI)

??Coke performance in an operating blast furnace is often empirically related to popular bench-scale tests, which are performed at relative much lower temperatures. Due to (more)

Ye, Zhuozhu

2014-01-01T23:59:59.000Z

263

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

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

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

264

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

265

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

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

PLASMA PHYSICS AND ENGINEERING Summary: replace costly traditional technologies as incineration and conventional plasma arc furnaces, and provide... ASSOCIATED LABORATORY ON...

266

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

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

in the furnace cavity. This special ... Source: Oak Ridge National Laboratory Fossil Energy Program; Pint, Bruce A. - Materials Science & Technology Division, Oak Ridge...

267

Mathematical modelling of the flow and combustion of pulverized coal injected in ironmaking blast furnace.  

E-Print Network (OSTI)

??Pulverized coal injection (PCI) technology is widely practised in blast furnace ironmaking due to economic, operational and environmental benefits. High burnout of pulverized coal in (more)

Shen, Yansong

2008-01-01T23:59:59.000Z

268

Small Glass-Melting Furnaces for Clear, Tinted, and Specialized Glass  

Science Journals Connector (OSTI)

Data on the design and application areas of small-sized glass-melting furnaces for melting various-purpose glasses are supplied.

A. A. Dymov; V. A. Fedorova

2000-07-01T23:59:59.000Z

269

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

270

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......

271

Cloudy Skies: Assessing Public Understanding of Global Warming  

E-Print Network (OSTI)

Surveys show most Americans believe global warming is real. But many advocate delaying action until there is more evidence that warming is harmful. The stock and ...

Sterman, John

2002-06-07T23:59:59.000Z

272

Cloudy Skies: Assessing Public Understanding of Global Warming  

E-Print Network (OSTI)

Surveys show most Americans believe global warming is real. But many advocate delaying action until there is more evidence that warming is harmful. The stock and ...

Sterman, John

2003-02-03T23:59:59.000Z

273

Secretary Moniz Warms Up For Earth Day Pitch | Department of...  

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

Warms Up For Earth Day Pitch Secretary Moniz Warms Up For Earth Day Pitch Addthis Speakers Secretary Ernest Moniz Duration :32...

274

Thermodynamic Evaluation of Low-Global Warming Potential Refrigerants...  

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

Thermodynamic Evaluation of Low-Global Warming Potential Refrigerants - 2013 Peer Review Thermodynamic Evaluation of Low-Global Warming Potential Refrigerants - 2013 Peer Review...

275

Working Fluids Low Global Warming Potential Refrigerants - 2013...  

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

Working Fluids Low Global Warming Potential Refrigerants - 2013 Peer Review Working Fluids Low Global Warming Potential Refrigerants - 2013 Peer Review Emerging Technologies...

276

Heat Recovery From Arc Furnaces Using Water Cooled Panels  

E-Print Network (OSTI)

to maintain a constant cooling water supply temperature in the cold well. The cooling tower fans can be manually reversed on slow speed for de-icing the cooling tower in winter to remove ice buildup on the slats. Level controller LL-2 shuts down pumps PI...HEAT RECOVERY FROM ARC FURNACES USING WATER COOLED PANELS D. F. Darby Deere & Company Moline, Illinois ABSTRACT In 1980-81, the John Deere Foundry at East Moline underwent an expansion program that in creased its capacity by over 60...

Darby, D. F.

277

Variation in coke properties within the blast-furnace shop  

SciTech Connect

In active production at OAO Magnitogorskii Metallurgicheskii Kombinat (MMK), samples of melt materials were taken during shutdown and during planned repairs at furnaces 1 and 8. In particular, coke was taken from the tuyere zone at different distances from the tuyere tip. The mass of the point samples was 2-15 kg, depending on the sampling zone. The material extracted from each zone underwent magnetic separation and screening by size class. The resulting coke sample was averaged out and divided into parts: one for determining the granulometric composition and mechanical strength; and the other for technical analysis and determination of the physicochemical properties of the coke.

E.N. Stepanov; I.I. Mel'nikov; V.P. Gridasov; A.A. Stepanova [OAO Magnitogorskii Metallurgicheskii Kombinat (MMK), Magnitogorsk, (Russian Federation)

2009-04-15T23:59:59.000Z

278

Air Quality  

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

What We Monitor & Why » What We Monitor & Why » Air Quality Air Quality To preserve our existing wilderness-area air quality, LANL implements a conscientious program of air monitoring. April 12, 2012 Real-time data monitoring for particulate matter An air monitoring field team member tests one of LANL's tapered element oscillating microbalance samplers, which collects real-time particulate matter data. Contact Environmental Communication & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email LANL monitors air quality 24 hours a day, 365 days a year. Why we monitor air LANL monitors many different pathways in order to assess their impact on workers, the public, animals, and plants. We monitor the air around the Laboratory to ensure our operations are not affecting the air of nearby

279

Engineering computer models for refrigerators, freezers, furnaces, water heaters, room and central air conditioners  

SciTech Connect

This User's Guide provides the necessary information for understanding and using a computer model developed for the US Department of Energy which predicts the performance (energy consumption) of household refrigerators, refrigerator-freezers, and freezers. The model is capable of simulating various cabinet configurations (top-mount, bottom-mount, side-by-side, single-door) and refrigeration unit combinations (back-mounted static condenser with single forced convection evaporator, hot wall condenser with cooled wall panels, etc.). The program is comprised of two main subroutines: a cabinet heat-load submodel and a refrigeration unit submodel; they can be used separately for preliminary design analysis or together for performance evaluations. A technical description of the model and information on how to structure input parameters are provided. The user is provided with specific guidance for running the model on a computer. Specific instructions are given in the Appendices for changing and running the model using the operating language compatible with the DOE computer terminal system. Other users will have to modify the procedures in these sections as necessary for different computers.

Not Available

1982-11-01T23:59:59.000Z

280

The Downward Influence of Stratospheric Sudden Warmings  

Science Journals Connector (OSTI)

The coupling between the stratosphere and the troposphere following two major stratospheric sudden warmings is studied in the Canadian Middle Atmosphere Model using a nudging technique by which the zonal-mean evolution of the reference sudden ...

Peter Hitchcock; Isla R. Simpson

2014-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "warm air furnace" 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

Global Warming Effects on Us Hurricane Damage  

E-Print Network (OSTI)

While many studies of the effects of global warming on hurricanes predict an increase in various metrics of Atlantic basin-wide activity, it is less clear that this signal will emerge from background noise in measures of ...

Emanuel, Kerry Andrew

282

Sandia National Laboratories: warm white LED  

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

warm white LED Sandia Develops a Synthesis of Quantum Dots that Increases the Quantum Yield to 95.5% On May 23, 2013, in Energy, Energy Efficiency, Materials Science, News, News &...

283

Blast furnace coke quality in relation to petroleum coke addition  

SciTech Connect

The incorporation of petroleum coke as an additive in industrial coking coal blends is a practice often used by steel companies. A suitable blast furnace coke produced by replacing part of the coking coal blend with a suitable petroleum coke (addition of 5 to 15%), was made by Great Lakes Carbon Corporation and successfully tested at several blast furnaces. This coke had lower reactivity, less ash and slightly higher sulfur content than coke made without the addition of petroleum coke. In contrast with these results, it has been reported in a BCRA study that additions of petroleum coke to a strong coking coal, above 5 wt%, increased coke reactivity. These differences may be explained on the basis of the coal or blend characteristics to which petroleum coke is added. Petroleum coke addition seems to give better results if the coal/blend has high fluidity. The present situation in Spain is favorable for the use of petroleum coke. So, a study of laboratory and semi-industrial scale was made to assess the possibility of using petroleum coke as an additive to the typical industrial coal blend coked by the Spanish Steel Company, ENSIDESA. The influence of the petroleum coke particle size was also studied to semi-industrial scale.

Alvarez, R.; Diez, M.A.; Menendez, J.A.; Barriocanal, C.; Pis, J.J. [CSIC, Oviedo (Spain). Inst. Nacional del Carbon; Sirgado, M. [ENSIDESA, Aviles (Spain)

1995-12-01T23:59:59.000Z

284

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

285

Determination of heliostat and concentrator size for solar furnace facilities  

SciTech Connect

There are basically two types of solar furnaces -- a vertical-beam or a horizontal-beam facility. A vertical-beam facility uses movable heliostats to redirect the incoming solar energy vertically upward to a stationary parabolid. A horizontal-beam furnace uses the heliostat to redirect the incoming energy horizontally to the paraboloid. This paper presents a method to determine the optimum size of the heliostat and/or concentrator to meet predetermined design criteria. Usually the concentrator size is fixed by the temperature and flux-density required at the test plane and the problem is to size the heliostat so the facility can be used for a certain length of time each day during the entire year. However, the method can also be used when the heliostat size is fixed and the concentrator size must be determined. The analysis considers energy incident from the sun being reflected from a flat spectral surface (heliostat) onto a concentrating surface (concentrator), which then redirects the energy to a focal spot that can then be used as a high temperature, high-flux density source. The analysis uses the basic relations of geometric optics and considers only the central ray of the incoming cone of energy from the sun. Errors involved with this assumption will be minimal for most cases, but if deemed necessary, the reflected cone can be accounted for in the reflected ray from the heliostat.

Mulholland, G.P.

1983-08-01T23:59:59.000Z

286

Innovation and the dynamics of global warming  

Science Journals Connector (OSTI)

Abstract Global warming and the carbon cycle are a dynamic system with positive feedbacks. Fossil fuels are exhaustible resources. These two facts mean that innovation in clean energy technology, rather than mitigating global warming, can lead to a permanently higher temperature path. This paper explores the impact of innovation in the simplest model linking the economic theory of exhaustible resources with positive feedback dynamics in the carbon cycle.

Ralph A. Winter

2014-01-01T23:59:59.000Z

287

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

288

STATEMENT OF CONSIDERATIONS REQUEST BY AIR PRODUCTS AND CHEMICALS, INC. (AIR PRODUCTS)  

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

PATENT RIGHTS PATENT RIGHTS TO INVENTIONS MADE UNDER A CONTRACT ENTITLED "DYNAMIC EXPERT SYSTEMS CONTROL FOR OPTIMAL OXY-FUEL MELTER PERFORMANCE" - DOE CONTRACT DE-FC02-98CH10919; W(A)-98-021, CH-0989 Air Products and Chemicals, Inc. (Air Products) has requested an advance waiver of domestic and foreign patent rights to inventions of its employees and of its subcontractors other than those eligible to obtain title pursuant to P.L. 96-517, as amended, or National Laboratories. As brought out in the attached waiver petition, Air Products is leading what is essentially a teaming arrangement for the development and demonstration of a dynamic control system which will allow oxy-fuel glass melting furnaces to operate more efficiently on a continuous basis. As a result of the improved control system, Air Products anticipates a reduction of about

289

Cold-blooded and warm-blooded  

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

Cold-blooded and warm-blooded Cold-blooded and warm-blooded Name: Walter Status: N/A Age: N/A Location: N/A Country: N/A Date: Around 1993 Question: What is the fundamental difference between cold-blooded and warm- blooded creatures? I know that reptile blood is a bit different than mammal blood, but is that the difference or is it a difference in the other cells of the body? Replies: Warm blooded refers to an animals ability to maintain its body temperature at a constant level. Cold blooded animal's bodies stay at the temperature of environment around them (more or less). The mechanism by which a warm blooded animal does this is by generating heat, mostly through muscle movement (but by other biochemical processes too). An example of this is shivering. Warm blooded animals also cool themselves off by sweating, panting (and other ways). In mammals the hypothalamic area of the brain has much to do with controlling these reflex processes

290

Fabrication of microstructures on glass by imprinting in conventional furnace for lab-on-chip application  

Science Journals Connector (OSTI)

Imprinting micro structures on glass in conventional furnace instead of vacuum chamber was carried out using a nickel alloy mold which was fabricated by diode-pumped solid state laser writing. The layout is designed to serve for DNA analysis. In the ... Keywords: Conventional furnace, Glass imprinting, Laser direct writing, Ni alloy mold

Qiuling Chen; Qiuping Chen; Gabriele Maccioni; Adriano Sacco; Sergio Ferrero; Luciano Scaltrito

2012-07-01T23:59:59.000Z

291

Our scenario is akin to the magnetic furnace model proposed by Axford and  

E-Print Network (OSTI)

Our scenario is akin to the magnetic furnace model proposed by Axford and McKenzie (14­16) and to ideas invoking reconnection of mesoscale loops (38, 39). We adopt from the furnace model the idea. However, our model of the nascent solar wind is intrinsically 3-D, and the magnetic field geometry

Pe'er, Dana

292

Global warming and end-use efficiency implications of replacing CFCs  

SciTech Connect

The direct contribution of CFCs to calculated global warming has been recognized for some time. As a result of the international agreement to phase out CFCs due to stratospheric ozone and the ensuing search for suitable alternatives, there has recently been increased attention on the DIRECT global warming potential (GWP) of the fluorocarbon alternatives as greenhouse gases. However, to date there has been little focus on the INDIRECT global warming effect arising from end-use efficiency changes and associated CO{sub 2} emissions. A study being conducted at Oak Ridge National Laboratory (ORNL) addresses this combined or total global warming impact of viable options to replace CFCs in their major energy-related applications. This paper reviews selected results for air-conditioning, refrigeration, and heat pump applications. The analysis indicates that the CFC user industries have made substantial progress in approaching near-equal energy efficiency with the HCFC/HFC alternative refrigerants. The findings also bring into question the relative importance of the DIRECT (chemical-related) effect in many applications. Replacing CFCs is an important step in reducing the total global warming impact, and at present the HCFC and HFCS appear to offer the best efficiency and lowest total impact of options available in the relatively short time period required for the transition away from CFCs.

Fairchild, P.D.; Fischer, S.K.

1991-12-31T23:59:59.000Z

293

Assessment of the Modified Emd Ex Ii Dosimeter In Measuring the Exposure of A 1 Khz Induction Furnace Operators  

Science Journals Connector (OSTI)

Magnetic fields in the vicinity of induction furnaces exhibit a marked spatial variation. Those close to a furnace often may exceed 1 mT1 and may exceed exposure guidelines2, but at normal operator positions this...

Philip Chadwick

1999-01-01T23:59:59.000Z

294

What Steps Do You Take to Maintain Your Furnace? | Department of Energy  

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

Steps Do You Take to Maintain Your Furnace? Steps Do You Take to Maintain Your Furnace? What Steps Do You Take to Maintain Your Furnace? January 7, 2010 - 7:30am Addthis This week, Chris told you about his plans to maintain his furnace to keep it running efficiently. Proper maintenance is key to ensuring your heating and cooling systems are in working order. No one wants to wake up on the coldest day of the year to find that they have no heat! What steps do you take to maintain your furnace? Each Thursday, you have the chance to share your thoughts on a question about energy efficiency or renewable energy for consumers. E-mail your responses to the Energy Saver team at consumer.webmaster@nrel.gov. Addthis Related Articles Brrrrr. It's Cold In There! Saving Energy and Money Starts at Home 31,000 Homes Weatherized in June

295

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

296

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

297

Effective thermal conduction model for estimating global warming  

Science Journals Connector (OSTI)

This paper presents a simple way to approximate the dependence of the global mean air temperature at Earths surface on the atmospheric concentration of carbon dioxide. It treats the atmosphere as a blanket the effective thermal conductivity of which is a decreasing function of the amount of CO 2 present and does not involve the details of energy transport. The only data required are the CO 2 concentrations at the middle of the nineteenth and the end of the twentieth centuries and the shift in temperature that has occurred over that time. This elementary phenomenological energy-balance approach is well suited for undergraduate physics courses to illustrate thermal conduction and radiation by way of the very interesting and critically important example of greenhouse warming of Earth.

Anthony B. Wolbarst

1999-01-01T23:59:59.000Z

298

Asymmetry of winter European surface air temperature extremes and the North Atlantic Oscillation  

Science Journals Connector (OSTI)

Inter-annual variations of winter warm and cold extremes in Europe are investigated. It is found that the variations are closely connected to the phase of the North Atlantic oscillation (NAO). The leading EOF of the winter cold (warm) surface air ...

Yina Diao; Shang-Ping Xie; Dehai Luo

299

Cool Roofs Are Ready to Save Energy, Cool Urban Heat Islands, and Help Slow Global Warming  

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

roofing is the fastest growing sector roofing is the fastest growing sector of the building industry, as building owners and facility managers realize the immediate and long-term benefits of roofs that stay cool in the sun. Studies exploring the energy efficiency, cost-effectiveness, and sustainability of cool roofs show that in warm or hot climates, substituting a cool roof for a conventional roof can: * Reduce by up to 15% the annual air-

300

Warm Conveyor Belts in the ERA-Interim Dataset (19792010). Part I: Climatology and Potential Vorticity Evolution  

Science Journals Connector (OSTI)

A global climatology of warm conveyor belts (WCBs) is presented for the years 19792010, based on trajectories calculated with Interim ECMWF Re-Analysis (ERA-Interim) data. WCB trajectories are identified as strongly ascending air parcels (600 hPa ...

Erica Madonna; Heini Wernli; Hanna Joos; Olivia Martius

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "warm air furnace" 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

Is the basinwide warming in the North Atlantic Ocean related to atmospheric carbon dioxide and global warming?  

E-Print Network (OSTI)

to atmospheric carbon dioxide and global warming? Chunzai Wang1 and Shenfu Dong1,2 Received 31 January 2010 is controversial. Some studies argued that the warming is due to global warming in association with the secular sea surface temperature. Here we show that both global warming and AMO variability make a contribution

Wang, Chunzai

302

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

Science Journals Connector (OSTI)

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

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

2011-02-01T23:59:59.000Z

303

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

304

1 - The Challenges of Global Warming Research  

Science Journals Connector (OSTI)

Abstract This chapter focuses on two items. First, it addresses the issue of global warming in a hostile political environment. Second, it looks at what might be called the basic research element connecting global warming to crime: research on the relationship between crime and weather. The first item addresses the nature of research itselfhow do we recognize when research is any good? There is a great deal of bad and misleading research on global warming. How do we know which is bad and which is good? The chapter begins with a discussion of three articles on Greenland melt-off, each with quite different implications, and discusses how to tell which is a legitimate research summary and which is not. It then provides a discussion of what constitutes good research generally and what one should look for when research is poorly done or intentionally misleading. For the second item, global warming and crime, we begin with a discussion of the difference between climate and weather. Much of this section is a review of Cohns work on temperature, crime, and violent crime. We also discuss the Ranson model, which provides a good description of the way in which crime can be modeled and predicted using data and research methods derived from the global warming literature.

John P. Crank; Linda S. Jacoby

2015-01-01T23:59:59.000Z

305

Ultrafast Spectroscopy of Warm Dense Matter  

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

Ultrafast Spectroscopy of Warm Dense Matter Print Ultrafast Spectroscopy of Warm Dense Matter Print Being neither solid, liquid, gas, nor plasma, warm dense matter (WDM) occupies a no man's land in the map of material phases. Its temperature can range between that of planetary cores (tens of thousands K) to that of stellar cores (hundreds of thousands K). Not only is it prevalent throughout the universe, it is relevant to inertial confinement fusion (ICF) and material performance under extreme conditions. However, because of its extreme temperatures and pressures, WDM tends to be drastically transient and thus difficult to study in the laboratory. Now, researchers have set up ultrafast x-ray absorption spectroscopy at the ALS to measure the electronic structure of WDMs, demonstrating that fast-changing electron temperatures of matter under extreme conditions can be determined with picosecond resolution.

306

Heating, Ventilation, and Air Conditioning Renovations | Department of  

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

Heating, Ventilation, and Air Conditioning Renovations Heating, Ventilation, and Air Conditioning Renovations Heating, Ventilation, and Air Conditioning Renovations October 16, 2013 - 4:49pm Addthis Renewable Energy Options for HVAC Renovations Geothermal Heat Pumps (GHP) Solar Water Heating (SWH) Biomass Passive Solar Heating Biomass Heating Solar Ventilation Air Preheating Federal building renovations that encompass the heating, ventilation, and air conditioning (HVAC) systems in a facility provide a range of renewable energy opportunities. The primary technology option for HVAC renovations is geothermal heat pumps (GHP). Other options include leveraging a solar water heating (SWH) system to offset heating load or using passive solar heating or a biomass-capable furnace or boiler. Some facilities may also take

307

Advertising, economic development, and global warming  

Science Journals Connector (OSTI)

Abstract Advertising is tied to global warming through an endogenous growth model. The model allows for the possibility that the environment can become a source rather than a sink for greenhouse gases. Optimal control analysis of the model shows that a feasible steady state is possible for which the environment remains a sink, and identifies a sufficient condition for such to be the case. Comparative-static analysis shows that, for sufficiently small values of steady-state anthropogenic greenhouse gas concentration, global surface temperature and advertising in steady state are negative functions of parameters that measure the damaging effects of global warming.

Gary M. Erickson

2014-01-01T23:59:59.000Z

308

Electrical conductivity of warm dense tungsten  

Science Journals Connector (OSTI)

Abstract The electrical conductivity of warm dense tungsten plasma has been investigated successfully by a linear mixture rule considering various interactions of electrons with electrons, atoms, and ions. The plasma composition is calculated by the nonideal Saha equation. The interesting regime for tungsten plasma spans from weakly coupled and nondegenerate regime to strongly coupled and partial degenerate state. The electrical conductivity calculated is in reasonable agreement with the exploding wire experiments and other theoretical models. The present result demonstrates that the theoretical model is valid for the electrical conductivity of tungsten plasma in the warm dense matter regime.

Zhijian Fu; Lijun Jia; Xiaowei Sun; Qifeng Chen

2013-01-01T23:59:59.000Z

309

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

SciTech Connect

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

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

1999-07-01T23:59:59.000Z

310

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

311

Fact Sheet: Isothermal Compressed Air Energy Storage (October 2012)  

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

SustainX SustainX American Recovery and Reinvestment Act (ARRA) Isothermal Compressed Air Energy Storage Demonstrating a modular, market-ready energy storage system that uses compressed air as a storage medium SustainX will demonstrate an isothermal compressed air energy storage (ICAES) system. Energy can be stored in compressed air, with minimal energy losses, and released when the air is later allowed to expand. Many traditional compressed air energy storage (CAES) projects store energy in underground geological formations such as salt caverns. However, in these systems, the air warms when it is compressed and cools when it is expanded. CAES systems generally use gas combustion turbines to reheat the cooled air before expansion. This process creates inefficiencies and emissions.

312

Realistic Mitigation Options for Global Warming  

Science Journals Connector (OSTI)

...uncertainty (48). The energy modeling results that employ other methods...concerns that environmental control could impede economic development...Sources and Guidelines for Control of Existing Sources: Municipal...100% under present U.S. laws) but to a lower global warming...

Edward S. Rubin; Richard N. Cooper; Robert A. Frosch; Thomas H. Lee; Gregg Marland; Arthur H. Rosenfeld; Deborah D. Stine

1992-07-10T23:59:59.000Z

313

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

314

Selection of Coal Gasification Parameters for Injection of Gasification Products Into a Blast Furnace  

Science Journals Connector (OSTI)

An analytical study was performed on the influence of blast parameters on the course of the processes in the volume of a blast furnace and smelting rates by injection of low-grade coal gasification products. It w...

I. G. Tovarovsky; A. E. Merkulov

2014-01-01T23:59:59.000Z

315

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

Science Journals Connector (OSTI)

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

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

2010-01-01T23:59:59.000Z

316

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

Science Journals Connector (OSTI)

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

Benedetto Risio; Uwe Schnell

1999-01-01T23:59:59.000Z

317

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

318

Loop formation in graphitic nanoribbon edges using furnace heating or Joule heating  

E-Print Network (OSTI)

Here the authors report the use of either furnace heating or Joule heating to pacify the exposed graphene edges by loop formation in a novel graphitic nanoribbonmaterial, grown by chemical vapor deposition. The edge energy ...

Jia, Xiaoting

319

Coal-oil mixture combustion program: injection into a blast furnace  

SciTech Connect

A chemically stabilized coal-oil mixture (COM) was made and used as an auxiliary fuel in a blast furnace for 44 days. Approximately 485,000 gallons of COM were produced at an on-site COM plant. Composition was 47.9% coal, 47.6% No. 6 oil, 4.0% water, and 0.5% emulsifier. Average injection rates were 3.8 to 13.0 gpm during different periods of the trial. Coal handling equipment, mixing and processing equipment, pumps, piping, fuel lances, and instrumentation are discussed. The blast furnace performance during the trial is compared to a Base Period of injecting No. 6 oil. Blast furnace performance was satisfactory, with one pound of COM replacing one pound of coke or 0.8 pound of No. 6 oil. The production of COM and its usage in a blast furnace is economical and feasible.

Jansto, S.G.; Mertdogan, A.; Marlin, L.A.; Beaucaire, V.D.

1982-04-30T23:59:59.000Z

320

An X-based spatial oxide growth visualization software for furnace characterization  

E-Print Network (OSTI)

important utility-oxide growth on the silicon wafer. The software developed is completely generic and has no affiliation to any make of furnace. The data required for simulation can easily be obtained from the actual piece of equipment. Simulation...

Kumar, Ravi C.K

2012-06-07T23:59:59.000Z

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


321

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

322

False diffusion in numerical simulation of combustion processes in tangential-fired furnace  

Science Journals Connector (OSTI)

Numerical simulation serves as one of the most important tools for analyzing coal combustion in Tangentially Fired Furnaces (TFF) with NUMERICAL FALSE DIFFUSION as one key problem that degrades the simulation acc...

Xuchang Xu; Zhigang Wang; Yuqun Zhuo

2007-11-01T23:59:59.000Z

323

Experimental Investigation of Combustion of Biomass Slurry in an Oil Fired Furnace  

Science Journals Connector (OSTI)

An experimental investigation of combustion of biomass slurry in an oil fired furnace was ... are presented. The calorific value of the biomass slurry increases with equivalence ratio initially, attains ... obser...

S. V. Prakash; S. R. Shankapal

2009-01-01T23:59:59.000Z

324

A Ceramic Waste Heat Recovery System on a Rotary Forge Furnace: An Installation and Operating History  

E-Print Network (OSTI)

heavy duty high temperature ceramic tube recuperator and five high temperature recirculating burners. The energy conservation system was retrofitted onto a rotary hearth furnace with an inside diameter of 11' 5'' (3.5m) and an available hearth area...

Young, S. B.; Campbell, T. E.; Worstell, T. M.

1981-01-01T23:59:59.000Z

325

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

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

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

326

Editorial The Global Warming Fight is Bringing Sexy Back, Are You Ready?  

E-Print Network (OSTI)

2006, September 25). Is global warming raising a tempest?or her behavior towards global warming in 2007. *Timberlake,Editorial: The Global Warming Fight is Bringing Sexy

Jankowska, Marta Maja

2006-01-01T23:59:59.000Z

327

Is the Ozone Depletion Regime a Model for an Emerging Regime on Global Warming?  

E-Print Network (OSTI)

the for- mation of a global warming regime produces a highlydepletion and the global warming regimes was recognized byan Emerging Regime on Global Warming? by Winfried Lang I.

Lang, Winfried

1991-01-01T23:59:59.000Z

328

Climate Feedback Analysis of the GFDL IPCC AR4 Global Warming Simulation.  

E-Print Network (OSTI)

?? Both observed and modeled global warming pattern shows a large surface polar warming and a large upper atmospheric warming in the tropics. This pattern (more)

Castet, Christelle Clemence

2009-01-01T23:59:59.000Z

329

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.

330

Air Pollution  

Science Journals Connector (OSTI)

Both natural processes and human activities contribute to air pollution, with the combustion of fossil fuels being the largest anthropogenic source of air pollutants. Adverse health effects (above all respiratory and cardiovascular complications), damage to crops, natural vegetation and materials, reduced visibility and changed radiation balance of the atmosphere are the major consequences of high concentrations of air pollutants. Technical fixes can sharply reduce emissions from large stationary sources and lower the rates of automotive emissions, but the rising number of vehicles and longer time spent on the road will call for more radical solutions to traffic-generated photochemical smog now present in all major urban areas.

V. Smil

2001-01-01T23:59:59.000Z

331

Building Technologies Office: Low-Global Warming Potential Refrigerants  

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

Low-Global Warming Low-Global Warming Potential Refrigerants Research Project to someone by E-mail Share Building Technologies Office: Low-Global Warming Potential Refrigerants Research Project on Facebook Tweet about Building Technologies Office: Low-Global Warming Potential Refrigerants Research Project on Twitter Bookmark Building Technologies Office: Low-Global Warming Potential Refrigerants Research Project on Google Bookmark Building Technologies Office: Low-Global Warming Potential Refrigerants Research Project on Delicious Rank Building Technologies Office: Low-Global Warming Potential Refrigerants Research Project on Digg Find More places to share Building Technologies Office: Low-Global Warming Potential Refrigerants Research Project on AddThis.com... About Take Action to Save Energy

332

Global Warming and Water Management: Water Allocation and Project Evaluation  

Science Journals Connector (OSTI)

This paper explores the sensitivity of the benefits of alternative water allocation schemes and of project evaluation to global warming. If global warming shifts the mean of annual water supplies, ... . Because b...

Robert Mendelsohn; Lynne L. Bennett

1997-09-01T23:59:59.000Z

333

Central issues in the negotiations on limiting greenhouse warming  

E-Print Network (OSTI)

The three central questions in the international negotiations on greenhouse warming are: (1) How much global warming should be tolerated? (2) How much responsibility for past emissions should be assigned to present ...

Eckaus, Richard S.

1992-01-01T23:59:59.000Z

334

Comparing the effects of greenhouse gas emissions on global warming  

E-Print Network (OSTI)

Policies dealing with global warming require a measure of the effects of the emissions of greenhouse gases that create different magnitudes of instantaneous radiative forcing and have different lifetimes. The Global Warming ...

Eckaus, Richard S.

1990-01-01T23:59:59.000Z

335

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

336

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

337

Eutrophication of ancient Lake Ohrid: Global warming amplifies ...  

Science Journals Connector (OSTI)

Eutrophication of ancient Lake Ohrid: Global warming amplifies detrimental effects of increased nutrient inputs. Matzinger, Andreas, Martin Schmid, Elizabeta

338

Bos > AIR  

E-Print Network (OSTI)

The advent of air travel has produced a building typology completely new to the 20th century. The outdated planning of regions for airports render most existing airports as isolated, autonomous instances in the urban ...

Lee, Kevin Young

2014-01-01T23:59:59.000Z

339

Separating Signal from Noise in Global Warming Bert W. Rust  

E-Print Network (OSTI)

Separating Signal from Noise in Global Warming Bert W. Rust Reprinted from the CD Rust, B. W. (2003) "Separating Signal from Noise in Global Warming," Computing Science and Statistics, 35, 263-277. ­ or ­ Rust, B. W. (2003) "Separating Signal from Noise in Global Warming," Computing Science and Statistics, 35

Rust, Bert W.

340

GLOBAL WARMING: THE PSYCHOLOGY OF LONG TERM RISK Guest Editorial  

E-Print Network (OSTI)

GLOBAL WARMING: THE PSYCHOLOGY OF LONG TERM RISK Guest Editorial Beyond its objective basis in natural science, understanding, discussion, and res- olution of the policy issue labeled "global warming the global warming problem. In public discussion, natu- ral scientists tend to frame the issue through

Todorov, Alex

Note: This page contains sample records for the topic "warm air furnace" 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

Possible global warming futures Minh Ha-Duong  

E-Print Network (OSTI)

Possible global warming futures Minh Ha-Duong Minh.Ha.Duong@cmu.edu CNRS, France HDGC, Carnegie Mellon Possible global warming futures ­ p.1/36 #12;SRES: Forecasts or scenarios? +5.5 C in 2100 the controversy using imprecise probabilities, a more general information theory. . . Possible global warming

342

The Logic of Global Warming A bitter pill  

E-Print Network (OSTI)

The Logic of Global Warming A bitter pill Vaughan Pratt Stanford University June 23, 2011 Vaughan PrattStanford University () The Logic of Global WarmingA bitter pill June 23, 2011 1 / 1 What is climate population growth. 2. Accumulation of hazardous materials: lead, mercury, CFCs, . . . 3. Global warming

Pratt, Vaughan

343

Global warming and hurricane intensity and frequency: The debate continues  

E-Print Network (OSTI)

Global warming and hurricane intensity and frequency: The debate continues Megan Mc of these changes. Some scientists believe that global warming and increased sea surface temperatures are to blame, global warming and increased sea surface temperatures do appear to have influenced hurricane frequency

Kareem, Ahsan

344

Global Warming Time Bomb:* Actions Needed to Avert Disaster  

E-Print Network (OSTI)

Global Warming Time Bomb:* Actions Needed to Avert Disaster James Hansen 26 October 2009 Club statements relating to policy are personal opinion Global Warming Status 1. Knowledge Gap Between - What Benefits of Solution Despite the publicity that global warming has received, there is a large gap between

Hansen, James E.

345

Measuring evolutionary responses to global warming: cautionary lessons from Drosophila  

E-Print Network (OSTI)

Measuring evolutionary responses to global warming: cautionary lessons from Drosophila FRANCISCO. Understanding evolutionary responses to global climate warming can be daunt- ingly complex. But, primarily of the magnitude of long-term responses to global warming; standardising by equivalent seasonal tem- perature

Rodríguez, Miguel Ángel

346

Communicating Dangers and Opportunities in Global Warming 13 December Draft  

E-Print Network (OSTI)

Communicating Dangers and Opportunities in Global Warming 13 December Draft James Hansen American: "Subversion of Public Affairs Chart 7: The Global Warming Story C. Tenets of a Democracy: "An Informed Public, not as a spokesman for NASA There is a huge gap between what is understood about global warming and what is known

Hansen, James E.

347

Carbon Dioxide, Global Warming, and Michael Crichton's "State of Fear"  

E-Print Network (OSTI)

Carbon Dioxide, Global Warming, and Michael Crichton's "State of Fear" Bert W. Rust Mathematical- tioned the connection between global warming and increasing atmospheric carbon dioxide by pointing out of these plots to global warming have spilled over to the real world, inviting both praise [4, 17] and scorn [15

Rust, Bert W.

348

Global warming and body mass decline in Israeli passerine birds  

Science Journals Connector (OSTI)

7 May 2001 research-article Global warming and body mass decline in Israeli...University, , Tel Aviv 69978, Israel Global warming may affect the physiology, distributions...mass and tarsus length are due to global warming and also in accordance with Bergmann's...

2001-01-01T23:59:59.000Z

349

Genetic shift in photoperiodic response correlated with global warming  

E-Print Network (OSTI)

Genetic shift in photoperiodic response correlated with global warming William E. Bradshaw observed in insects, birds, amphibians, and plants associated with global warm- ing during the latter half- tent with an adaptive evolutionary response to recent global warming. The latter half of the 20th

Cochran-Stafira, D. Liane

350

Global warming and United States landfalling hurricanes Chunzai Wang1  

E-Print Network (OSTI)

Global warming and United States landfalling hurricanes Chunzai Wang1 and Sang-Ki Lee2 Received 18] A secular warming of sea surface temperature occurs almost everywhere over the global ocean. Here we use observational data to show that global warming of the sea surface is associated with a secular increase

Wang, Chunzai

351

Global warming and body mass decline in Israeli passerine birds  

E-Print Network (OSTI)

Global warming and body mass decline in Israeli passerine birds Yoram Yom-Tov Department of Zoology,Tel Aviv University,Tel Aviv 69978, Israel ( yomtov@post.tau.ac.il) Global warming may a¡ect the physiology in body mass and tarsus length are due to global warming and also in accordance with Bergmann's rule

Yom-Tov, Yoram

352

Global warming triggers the loss of a key Arctic refugium  

Science Journals Connector (OSTI)

...research-article Research articles 1001 69 60 Global warming triggers the loss of a key Arctic...change that is being driven by global warming. In stark contrast to the amplified...planet's last Arctic refugia from global warming, largely because of the moderating...

2013-01-01T23:59:59.000Z

353

Observationally based assessment of polar amplification of global warming  

E-Print Network (OSTI)

Observationally based assessment of polar amplification of global warming Igor V. Polyakov,1) are similar, and do not support the predicted polar amplification of global warming. The possible moderating amplification of global warming. Intrinsic arctic variability obscures long-term changes, limiting our ability

Bhatt, Uma

354

Warm Standby in Hierarchically Structured Process-Control Programs  

E-Print Network (OSTI)

are identified and the reliability of a system using warm standby is evaluated and compared with that of hot standby. Our analysis indicates that the warm standby scheme is particularly suitable for long are possible. The feasibility of warm standby is demonstrated with a simulated chemical batch reactor system

Chen, Ing-Ray

355

Capture and Use of Coal Mine Ventilation-Air Methane  

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

Capture and use of Coal Mine Capture and use of Coal Mine Ventilation - air Methane Background Methane emissions from coal mines represent about 10 percent of the U.S. anthropogenic methane released to the atmosphere. Methane-the second most important non-water greenhouse gas-is 21 times as powerful as carbon dioxide (CO 2 ) in its global warming potential. Ventilation-air methane (VAM)-the exhaust air from underground coal mines-is the largest source of coal mine methane, accounting for about half of the methane emitted from coal mines in the United States. Unfortunately, because of the low methane concentration (0.3-1.5 percent) in ventilation air, its beneficial use is difficult. However, oxidizing the methane to CO 2 and water reduces its global warming potential by 87 percent. A thermal

356

Pressure Regain Strategies for Existing Air Distribution Systems  

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

Pressure Regain Strategies for Pressure Regain Strategies for Existing Air Distribution Systems Arlan Burdick IBACOS, Inc. Pressure Regain Strategies for Existing Air Distribution Systems Problem Statement Thermal enclosure upgrades can reduce peak loads by 50%. If the furnace is right-sized for this new peak load and the ducts are not modified or replaced, the resulting airflows at the supply registers will be significantly reduced. -Will the outlets meet industry standards for performance? - Should they be replaced to achieve good room air mixing? - Should the end of the duct be modified to improve airflow characteristics? Pressure Regain Strategies for Existing Air Distribution Systems Expected Results We expect to find a cost-effective solution to gaining proper airflow to a room without completely replacing

357

List of Central Air conditioners Incentives | Open Energy Information  

Open Energy Info (EERE)

Central Air conditioners Incentives Central Air conditioners Incentives Jump to: navigation, search The following contains the list of 1032 Central Air conditioners Incentives. CSV (rows 1-500) CSV (rows 501-1000) CSV (rows 1001-1032) 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 and SWEPCO) - Coolsaver A/C Tune Up (Texas) Utility Rebate Program Texas Commercial Installer/Contractor

358

Sorption Mechanisms for Mercury Capture in Warm Post-Gasification Gas Clean-Up Systems  

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

Sorption MechaniSMS for Mercury Sorption MechaniSMS for Mercury capture in WarM poSt-GaSification GaS clean-up SySteMS Background Power generation systems employing gasification technology must remove a variety of potential air pollutants, including mercury, from the synthetic gas steam prior to combustion. In general, efforts to remove mercury have focused on removal at lower temperatures (under 300 °F). The ability to remove mercury at warm-gas cleanup conditions (300 °F to 700 °F) or in the hot-gas cleanup range (above 1200 °F) would provide plant operators with greater flexibility to choose the treatment method best suited to conditions at their plant. The University of Arizona is investigating the use of paper waste-derived sorbents (PWDS) for the removal of mercury and other trace metals at temperatures in and

359

DM particles: how warm they can be?  

SciTech Connect

One of important questions concerning particles which compose the Dark Matter (DM) is their average speed. We consider the model of relativistic weakly interacting massive particles and try to impose an upper bound on their actual and past warmness through the analysis of density perturbations and comparison with the LSS data. It is assumed that the DM can be described by the recently invented model of reduced relativistic gas (RRG). The equation of state of the RRG model is closely reproducing the one of the Maxwell distribution, while being much simpler. This advantage of the RRG model makes our analysis very efficient. As a result we arrive at the rigid and model-independent bound for the DM warmness without using the standard (much more sophisticated) approach based on the Einstein-Boltzmann system of equations.

Fabris, Julio C. [Departamento de Fisica - CCE, Universidade Federal do Espirito Santo, Vitoria, CEP: 29060-900, ES (Brazil)] [Departamento de Fisica - CCE, Universidade Federal do Espirito Santo, Vitoria, CEP: 29060-900, ES (Brazil); Shapiro, Ilya L.; Sobreira, Flavia, E-mail: fabris@cce.ufes.br, E-mail: shapiro@fisica.ufjf.br, E-mail: flavia_sobreira@yahoo.com.br [Departamento de Fisica - ICE, Universidade Federal de Juiz de Fora, Juiz de Fora, CEP: 36036-330, MG (Brazil)] [Departamento de Fisica - ICE, Universidade Federal de Juiz de Fora, Juiz de Fora, CEP: 36036-330, MG (Brazil)

2009-02-15T23:59:59.000Z

360

Global Warming Mitigation Investments Optimized under Uncertainty  

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

Global Warming Mitigation Investments Optimized under Uncertainty Global Warming Mitigation Investments Optimized under Uncertainty Speaker(s): Hermann Held Date: July 9, 2010 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Thomas McKone The Copenhagen Accord (2009) recognizes that 'the increase in global temperature should be below 2 degrees Celsius' (compared to pre-industrial levels, '2° target'). In recent years, energy economics have derived welfare-optimal investment streams into low-emission energy mixes and associated costs. According to our analyses, auxiliary targets that are in line with the 2° target could be achieved at relatively low costs if energy investments were triggered rather swiftly. While such analyses assume 'perfect foresight' of a benevolent 'social planner', an accompanying suite of experiments explicitly

Note: This page contains sample records for the topic "warm air furnace" 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

Decarbonization and Sequestration for Mitigating Global Warming  

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

DECARBONIZATION AND SEQUESTRATION FOR DECARBONIZATION AND SEQUESTRATION FOR MITIGATING GLOBAL WARMING M. Steinberg (msteinbe@bnl.gov); 631-344-3036 Brookhaven National Laboratory 12 South Upton Street Upton, NY 11973-5000, USA ABSTRACT Mitigating the global warming greenhouse effect while maintaining a fossil fuel economy, requires improving efficiency of utilization of fossil fuels, use of high hydrogen content fossil fuels, decarbonization of fossil fuels, and sequestering of carbon and CO 2 applied to all the sectors of the economy, electric power generation, transportation, and industrial, and domestic power and heat generation. Decarbonization means removal of carbon as C or CO 2 either before or after fossil fuel combustion and sequestration means disposal of the recovered C or CO 2 including its utilization. Removal and recovery of CO

362

The Science and Ethics of Global warming Global warming has become one of the central political and scientific issues of  

E-Print Network (OSTI)

The Science and Ethics of Global warming Global warming has become one of the central political of the considerations that might govern our response to global warming, including a discussion of some new developments of the atmosphere is to reduce the efficiency with which the earth's surface radiates away the energy it absorbs

Kirk-Davidoff, Daniel

363

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

364

Comparative analysis of failure probability for ethylene cracking furnace tube using Monte Carlo and API RBI technology  

Science Journals Connector (OSTI)

Abstract Ethylene cracking furnace tube is one of the most critical components in the petrochemical industry to crack molecules at high temperature. The furnace tube degrades easily during operations which would cause equipment failure and lead to serious consequences, such as fire and explosion. In this work, a quantitative analysis of failure probability for the ethylene cracking furnace tube is performed using the Monte Carlo method and API Risk-Based Inspection (RBI) technology. The results have shown that the operation life of ethylene cracking furnace tube under interaction of creep and carburization is less than that under creep, and the failure probability calculated based on API RBI technology is lower than that using the Monte Carlo method. Moreover, the comparative analysis results prove further that creep and carburization are two main failure modes of the furnace tube rupture. Therefore, it is very necessary to provide reliable data to perform risk assessment and inspections on ethylene cracking furnace tube.

Wenhe Wang; Kaiwu Liang; Changyou Wang; Qingsheng Wang

2014-01-01T23:59:59.000Z

365

Computer modeling of the global warming effect  

SciTech Connect

The state of knowledge of global warming will be presented and two aspects examined: observational evidence and a review of the state of computer modeling of climate change due to anthropogenic increases in greenhouse gases. Observational evidence, indeed, shows global warming, but it is difficult to prove that the changes are unequivocally due to the greenhouse-gas effect. Although observational measurements of global warming are subject to ``correction,`` researchers are showing consistent patterns in their interpretation of the data. Since the 1960s, climate scientists have been making their computer models of the climate system more realistic. Models started as atmospheric models and, through the addition of oceans, surface hydrology, and sea-ice components, they then became climate-system models. Because of computer limitations and the limited understanding of the degree of interaction of the various components, present models require substantial simplification. Nevertheless, in their present state of development climate models can reproduce most of the observed large-scale features of the real system, such as wind, temperature, precipitation, ocean current, and sea-ice distribution. The use of supercomputers to advance the spatial resolution and realism of earth-system models will also be discussed.

Washington, W.M. [National Center for Atmospheric Research, Boulder, CO (United States)

1993-12-31T23:59:59.000Z

366

AirUCI Summer 2007 Schedule Monday, June 25th  

E-Print Network (OSTI)

: Composition and Effects on Global Warming (p. 107, & 203­206) - PAH (p. 393­402) - Combustion reactions) - Global Circulation Models and Predictions (p. 212, 213 & 220 ­ 226) 11 am to 12 pm: Lunch with Air and pollutant formation - Fuels: Hydrocarbons, Aromatics, H2 (p. 283), Coal (p. 228 & 229), Petroleum

Nizkorodov, Sergey

367

Air Resources: Prevention and Control of Air Contamination and Air  

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

Air Resources: Prevention and Control of Air Contamination and Air Air Resources: Prevention and Control of Air Contamination and Air Pollution, Air Quality Classifications and Standards, and Air Quality Area Classifications (New York) Air Resources: Prevention and Control of Air Contamination and Air Pollution, Air Quality Classifications and Standards, and Air Quality Area Classifications (New York) < Back Eligibility Agricultural Fuel Distributor Industrial Institutional Investor-Owned Utility Local Government Multi-Family Residential Municipal/Public Utility Nonprofit Rural Electric Cooperative Schools State/Provincial Govt Transportation Tribal Government Utility Program Info State New York Program Type Environmental Regulations Provider NY Department of Environmental Conservation These regulations establish emissions limits and permitting and operational

368

Certain rules of formation of the block in melting brucite in an OKB-955N smelting furnace  

Science Journals Connector (OSTI)

Certain rules of columnar crystallization of periclase and of formation of the block in melting of brucite in an OKB-955N smelting furnace are...

K. V. Simonov

369

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 ArcelorMittals 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

370

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

371

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

372

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

DOE Patents (OSTI)

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

Tuttle, Kenneth L. (Federal Way, WA)

1980-01-01T23:59:59.000Z

373

Sandjet- A New Alternative for Cleaning Furnace Tubes  

E-Print Network (OSTI)

Industrial Energy Technology Conference Houston, TX, April 26-29, 1981 The reaction in which oxygen combines with carbon to form carbon dioxide (C02) is a very efficient way of removing carbonaceous material. Since it is highly exothermic, steam is added... of tube walls. Shot peening is normally considered to be a superficial stress relieving technique and Sandjet cleaning can be considered to be analogous to in-place shot peening. Steam-air decoking previously described involves the exothermic reaction...

Pollock, C. B.

1981-01-01T23:59:59.000Z

374

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

375

Apparatus having inductively coupled coaxial coils for measuring buildup of slay or ash in a furnace  

DOE Patents (OSTI)

The buildup of slag or ash on the interior surface of a furnace wall is monitored by disposing two coils to form a transformer which is secured adjacent to the inside surface of the furnace wall. The inductive coupling between the two coils of the transformer is affected by the presence of oxides of iron in the slag or ash which is adjacent to the transformer, and the application of a voltage to one winding produces a voltage at the other winding that is related to the thickness of the slag or ash buildup on the inside surface of the furnace wall. The output of the other winding is an electrical signal which can be used to control an alarm or the like or provide an indication of the thickness of the slag or ash buildup at a remote location.

Mathur, Mahendra P. (Pittsburgh, PA); Ekmann, James M. (Bethel Park, PA)

1989-01-01T23:59:59.000Z

376

Furnace Creek Ranch Pool & Spa Low Temperature Geothermal Facility | Open  

Open Energy Info (EERE)

Furnace Creek Ranch Pool & Spa Low Temperature Geothermal Facility Furnace Creek Ranch Pool & Spa Low Temperature Geothermal Facility Facility Furnace Creek Ranch Sector Geothermal energy Type Pool and Spa Location Death Valley, California Coordinates Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

377

Global Warming and Caspian Sea Level Fluctuations  

E-Print Network (OSTI)

Coastal regions have a high social, economical and environmental importance. Due to this importance the sea level fluctuations can have many bad consequences. In this research the correlation between the increasing trend of temperature in coastal stations due to Global Warming and the Caspian Sea level has been established. The Caspian Sea level data has been received from the Jason-1 satellite. It was resulted that the monthly correlation between the temperature and sea level is high and also positive and almost the same for all the stations. But the yearly correlation was negative. It means that the sea level has decreased by the increase in temperature.

Ardakanian, Reza

2013-01-01T23:59:59.000Z

378

Warm inflation in presence of magnetic fields  

SciTech Connect

We present preliminary results on the possible effects that primordial magnetic fields can have for a warm inflation scenario, based on global supersymmetry, with a new-inflation-type potential. This work is motivated by two considerations: first, magnetic fields seem to be present in the universe on all scales which rises de possibility that they could also permeate the early universe; second, the recent emergence of inflationary models where the inflaton is not assumed to be isolated but instead it is taken as an interacting field, even during the inflationary expansion. The effects of magnetic fields are included resorting to Schwinger's proper time method.

Piccinelli, Gabriella [Centro Tecnolgico, FES Aragn, Universidad Nacional Autnoma de Mxico, Avenida Rancho Seco S/N, Bosques de Aragn, Nezahualcyotl, Estado de Mxico 57130 (Mexico)] [Centro Tecnolgico, FES Aragn, Universidad Nacional Autnoma de Mxico, Avenida Rancho Seco S/N, Bosques de Aragn, Nezahualcyotl, Estado de Mxico 57130 (Mexico); Snchez, ngel [Department of Physics, University of Texas at El Paso, El Paso, Texas 79968 (United States)] [Department of Physics, University of Texas at El Paso, El Paso, Texas 79968 (United States); Ayala, Alejandro; Mizher, Ana Julia [Instituto de Ciencias Nucleares, Universidad Nacional Autnoma de Mxico, Apartado Postal 70-543, Mxico Distrito Federal 04510 (Mexico)] [Instituto de Ciencias Nucleares, Universidad Nacional Autnoma de Mxico, Apartado Postal 70-543, Mxico Distrito Federal 04510 (Mexico)

2013-07-23T23:59:59.000Z

379

Storing images in warm atomic vapor  

E-Print Network (OSTI)

Reversible and coherent storage of light in atomic medium is a key-stone of future quantum information applications. In this work, arbitrary two-dimensional images are slowed and stored in warm atomic vapor for up to 30 $\\mu$s, utilizing electromagnetically induced transparency. Both the intensity and the phase patterns of the optical field are maintained. The main limitation on the storage resolution and duration is found to be the diffusion of atoms. A techniqueanalogous to phase-shift lithography is employed to diminish the effect of diffusion on the visibility of the reconstructed image.

M. Shuker; O. Firstenberg; R. Pugatch; A. Ron; N. Davidson

2008-06-17T23:59:59.000Z

380

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

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

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

Note: This page contains sample records for the topic "warm air furnace" 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

Public Awareness about Global Warming in Hyderabad, India.  

E-Print Network (OSTI)

?? This study addressed public perceptions and awareness about global warming in India through a survey of 851 subjects in the city of Hyderabad in (more)

Rao, Vani Sarraju

2011-01-01T23:59:59.000Z

382

Progress toward Biomass and Coal-Derived Syngas Warm Cleanup...  

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

Progress toward Biomass and Coal-Derived Syngas Warm Cleanup: Proof-of-Concept Process Demonstration of Multicontaminant Removal Progress toward Biomass and Coal-Derived Syngas...

383

Warm Forming of Aluminum?AMD 307 | Department of Energy  

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

More Documents & Publications Development of High-Volume Warm Forming of Low-Cost Magnesium Sheet USAMP AMD 408 DIE FACE ENGINEERING FOR ADVANCED SHEET MATERIALS...

384

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

385

Elites and the Global Warming Conflict: Directors of Pro-Environmental and Anti-Global Warming Organizations.  

E-Print Network (OSTI)

??The longstanding policy conflict over global warming directly affects the interests of elite groups in the United States. This study investigates the nature of elite (more)

Hein, James Everett

2007-01-01T23:59:59.000Z

386

100 LPW 800 Lm Warm White LED  

SciTech Connect

An illumination grade warm white (WW) LED, having correlated color temperature (CCT) between 2800 K and 3500K and capable of producing 800 lm output at 100 lm/W, has been developed in this program. The high power WW LED is an ideal source for use as replacement for incandescent, and Halogen reflector and general purpose lamps of similar lumen value. Over the two year period, we have made following accomplishments: developed a high power warm white LED product and made over 50% improvements in light output and efficacy. The new high power WW LED product is a die on ceramic surface mountable LED package. It has four 1x1 mm{sup 2} InGaN pump dice flip chip attached to a ceramic submount in 2x2 array, covered by warm white phosphor ceramic platelets called Lumiramic? and an overmolded silicone lens encapsulating the LED array. The performance goal was achieved through breakthroughs in following key areas: (1) High efficiency pump LED development through pump LED active region design and epi growth quality improvement (funded by internal programs). (2) Increase in injection efficiency (IE) represented by reduction in forward voltage (V{sub f}) through the improvement of the silver-based p-contact and a reduction in spreading resistance. The injection efficiency was increased from 80% at the start of the program to 96% at the end of the program at 700 mA/mm{sup 2}. (3) Improvement in thermal design as represented by reduction in thermal resistance from junction to case, through improvement of the die to submount connection in the thin film flip chip (TFFC) LED and choosing the submount material of high thermal conductivity. A thermal resistance of 1.72 K/W was demonstrated for the high power LED package. (4) Improvement in extraction efficiency from the LED package through improvement of InGaN die level and package level optical extraction efficiency improvement. (5) Improvement in phosphor system efficiency by improving the lumen equivalent (LE) and phosphor package efficiency (PPE) through improvement in phosphor-package interactions. Another achievement in the development of the phosphor integration technology is the demonstration of tight color control. The high power WW LED product developed has been proven to have good reliability. The manufacturing of the product will be done in Philips Lumileds?? LUXEON Rebel production line which has produced billions of high power LEDs. The first high power WW LED product will be released to the market in 2011.

Decai Sun

2010-10-31T23:59:59.000Z

387

Laser-excited atomic fluorescence spectrometry in a graphite furnace with an  

E-Print Network (OSTI)

Laser-excited atomic fluorescence spectrometry in a graphite furnace with an optical parametric oscillator laser for sequential multi-element determination of cadmium, cobalt, lead, manganese and thallium, for the ® rst time, that solid-state lasers required for analysis (ml or mg) and the technique has direct based

Michel, Robert G.

388

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

389

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

390

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

391

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

392

Thermophotovoltaic furnacegenerator for the home using low bandgap GaSb cells  

Science Journals Connector (OSTI)

It is well known that distributed combined heat and power (CHP) systems for commercial and industrial buildings are economically desirable because they conserve energy. Here, a thermophotovoltaic (TPV) unit is described that brings CHP into the home providing both heat and electric power by replacing the typical home heating furnace with a combined TPV furnacegenerator. First, the design of a 1.5 kWelectric/12.2 kWthermal TPV furnacegenerator is described along with the key components that make it possible. Diffused junction GaSb cells are one of these key components. Secondly, an economic cost target is determined for this system where the cost of the photovoltaic array will be key to the economical implementation of this concept. Finally, it is argued that the GaSb cells and arrays can be manufactured at the required low cost. The cost target can be reached because the GaSb cells in the TPV furnacegenerator can produce an electrical power density of 1 W cm?2 which is 100 times higher than the typical solar cell. The cost target can also be reached because the GaSb cell fabrication process parallels the silicon solar cell process where no toxic gases are used, no wafer polish is required and cast polycrystalline cells can be used.

L M Fraas; J E Avery; H X Huang

2003-01-01T23:59:59.000Z

393

Model of Phosphorus Precipitation and Crystal Formation in Electric Arc Furnace Steel Slag Filters  

Science Journals Connector (OSTI)

Model of Phosphorus Precipitation and Crystal Formation in Electric Arc Furnace Steel Slag Filters ... Phosphorus is generally the limiting nutrient in freshwater systems and its discharge from wastewaters favors eutrophication. ... (1) Stricter regulations for phosphorus discharges to smaller treatment plants creates a need for the development of new and extensive (requiring minimal operation) treatment technologies. ...

Dominique Claveau-Mallet; Scott Wallace; Yves Comeau

2011-12-30T23:59:59.000Z

394

Dofasco`s No. 4 blast furnace hearth breakout, repair and rescue  

SciTech Connect

On May 5, 1994, after producing 9.5 million metric tons of iron, Dofasco`s No. 4 Blast Furnace experienced a hearth breakout 250 millimeters below the west taphole. The hot metal spill caused a fire resulting in severe damage and 33 days of lost production. During a 26-day period, electrical wiring, water drainage systems and both tapholes were repaired. Recovery from an unprepared furnace stop of this length, with the deadman depleted is difficult. To aid with the rescue Hoogovens-designed oxygen/fuel lances were commissioned. The furnace recovery began with a lance in each taphole and all tuyeres plugged. Six days after startup the furnace was casting into torpedo cars, and after nine days operation had returned to normal. This incident prompted Dofasco to expand the hearth monitoring system to detect and prevent similar occurrences. During the repair, 203 new thermocouples were installed in the hearth, concentrating on the tapholes and elephant foot areas. These thermocouples were installed at various depths and locations to allow heat flux calculations. This hearth monitoring system has already identified other problem areas and provided valuable information about hearth drainage patterns. This information has allowed them to develop control strategies to manage localized problem areas.

Donaldson, R.J.; Fischer, A.J.; Sharp, R.M.; Stothart, D.W. [Dofasco Inc., Hamilton, Ontario (Canada)

1995-12-01T23:59:59.000Z

395

Pulverized coal firing of aluminum melting furnaces. Second annual technical progress report, July 1979-June 1980  

SciTech Connect

The ultimate objective of this program is the commercial demonstration of an efficient, environmentally acceptable coal firing process suitable for implementation on melting furnaces throughout the aluminum industry. To achieve this goal, the program has been divided into two phases. Phase I has proceeded through design and construction of a 350 pound (coal) per hour staged slagging cyclone combustor (SSCC) attached to a 7-ft diameter aluminum melting ladle furnace. Process development will culminate with a 1000 pph prototype SSCC firing a 40,000 pound capacity open hearth melting furnace at the Alcoa Laboratories. Phase II implementation is currently planned for Alcoa's Lafayette, IN, Works, where two of the ingot plant's five open hearth melting furnaces will be converted to utilize coal. In addition to confirmation of data gathered in Phase I, the effect of extended production schedule operation on equipment and efficiencies will be determined. This work would begin in 1982 pursuant to technical and economic evaluation of the process development at that time.

West, C E; Stewart, D L

1980-08-01T23:59:59.000Z

396

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

397

Recovery of titanium values from titanium grinding swarf by electric furnace smelting  

DOE Patents (OSTI)

A method for the recovery of valuable materials from titanium grinding swarf is provided comprising the steps of sieving the accumulated titanium grinding swarf to remove unwanted coarse trash and grinding wheel fragments, pelletizing, and smelting in an electric arc furnace to produce ferrotitanium and/or high titanium slag.

Gerdemann, Stephen J. (Albany, OR); White, Jack C. (Albany, OR)

1999-01-01T23:59:59.000Z

398

Recovery of titanium values from titanium grinding swarf by electric furnace smelting  

DOE Patents (OSTI)

A method for the recovery of valuable materials from titanium grinding swarf is provided comprising the steps of sieving the accumulated titanium grinding swarf to remove unwanted coarse trash and grinding wheel fragments, pelletizing, and smelting in an electric arc furnace to produce ferrotitanium and/or high titanium slag.

Gerdemann, Stephen J. (Albany, OR); White, Jack C. (Albany, OR)

1998-01-01T23:59:59.000Z

399

Recovery of titanium values from titanium grinding swarf by electric furnace smelting  

DOE Patents (OSTI)

A method for the recovery of valuable materials from titanium grinding swarf is provided comprising the steps of sieving the accumulated titanium grinding swarf to remove unwanted coarse trash and grinding wheel fragments, pelletizing, and smelting in an electric arc furnace to produce ferrotitanium and/or high titanium slag. 1 fig.

Gerdemann, S.J.; White, J.C.

1998-08-04T23:59:59.000Z

400

The Utilization and Recovery of Energy from Blast Furnaces and Converters  

E-Print Network (OSTI)

THE UTILIZATION AND RECOVERY OF ENERGY FROM BLAST FURNACES AND CONVERTERS Dr.-Ing. Rolf-D. Baare, Ober-Ing. Karl-Rudolf Hegemann and Ing. (grad.) Theodor Niess Gottfried Bischoff GmbH &Co. KG Essen, W. Germany ABSTRACT The Bischoff Blast...

Hegemann, K. R.; Niess, T.; Baare, R. D.

1979-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "warm air furnace" 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

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

402

Energy Conservation Program for Consumer Products: Test Procedures for Residential Furnaces Fans; Correction  

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

On January 3, 2014 the U.S. Department of Energy (DOE) published a final rule in the Federal Register that established the test procedure for residential furnace fans. Due to drafting errors, that document inadvertently removed necessary incorporation by reference material in the Code of Federal Regulations (CFR). This final rule rectifies this error by once again adding the removed material.

403

Effect of Electric Arc Furnace Bag House Dust on Concrete Durability Researcher: Fahad Al-Mutlaq  

E-Print Network (OSTI)

Effect of Electric Arc Furnace Bag House Dust on Concrete Durability Researcher: Fahad Al billions of dollars annually. While steel is normally protected from corrosion in concrete by a passive of the effects of addition of Bag House Dust (BHD) on aspects of concrete durability. BHD is a fine powder

Birmingham, University of

404

Coal: Prospects in the Twenty-First Century: Exhaustion Trumped by Global Warming?  

Science Journals Connector (OSTI)

Abstract There has been a great transformation in the nature and location of use of coal, as well as in the location of its production. China and India have emerged as the major producers and consumers of coal. Electricity generation has become its main use. Interest in coal as a replacement for depleting oil and natural gas resources remains, but at a greatly diminished level. Fears of global warming have supplemented traditional concerns about pollution from coal. These and other concerns have led to extensive policies regulating the production and use of coal. The United States has programs affecting labor standards in coal mining, reclamation of mined land, leasing of coal resources on federally owned land, and air and water pollution. Air pollution controls try to directly control pollution through standards on the allowable pollutant content in the atmosphere and to indirectly regulate it by setting emission standards at individual pollution sources. These complex and overlapping regulations are proving difficult to design and implement. As global warming control must be worldwide, its achievement involves daunting implementation barriers.

R.L. Gordon

2013-01-01T23:59:59.000Z

405

LLNL scientists find precipitation, global warming link  

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

4 4 For immediate release: 11/11/2013 | NR-13-11-04 Lawrence Livermore scientists have found that observed changes in global precipitation are directly affected by human activities. LLNL scientists find precipitation, global warming link Anne M Stark, LLNL, (925) 422-9799, stark8@llnl.gov LIVERMORE, Calif. -- The rain in Spain may lie mainly on the plain, but the location and intensity of that rain is changing not only in Spain but around the globe. A new study by Lawrence Livermore National Laboratory scientists shows that observed changes in global (ocean and land) precipitation are directly affected by human activities and cannot be explained by natural variability alone. The research appears in the Nov. 11 online edition of the Proceedings of the National Academy of Sciences.

406

Warming caused by cumulative carbon emissions towards the trillionth tonne  

E-Print Network (OSTI)

LETTERS Warming caused by cumulative carbon emissions towards the trillionth tonne Myles R. Allen1 emission pathways. We find that the peak warming caused by a given cumulative carbon dioxide emission of emissions or peak emission rate). Hence policy targets based on limiting cumulative emissions of carbon

Fischlin, Andreas

407

Geoengineering: Plan B Remedy for Global Warming Andrew A. Lacis  

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

Geoengineering: Plan B Remedy for Global Warming Geoengineering: Plan B Remedy for Global Warming Andrew A. Lacis NASA Goddard Institute for Space Studies Accelerated melting of Greenland ice is a clear indication that consequences of global warming are real and impending. The underlying causes of global warming are well enough understood, but the necessary reduction of greenhouse gases to prevent irreversible climate change is unlikely to happen before the point of no return is reached. To reverse the impending sea level rise, geoengineering counter- measures may be required to counter the current global energy imbalance due to global warming. Of the many proposed remedies, deploying aerosols within the stratosphere offers realistic prospects. Sulfur injections in the lower stratosphere would have the cooling effect of naturally occurring volcanic aerosols. Soot at

408

Warming systems prolong steam-turbine life, accelerate startup  

SciTech Connect

Cycling capability is one of the top challenges in the design, operation, and maintenance of today's powerplants. This article describes how permanent warming systems can be a powerful ally in meeting this challenge, particularly for aging steam turbines. The warming system is typically used to hold steam-turbine shell temperatures during short shutdowns (up to about three days), or to pre-warm shells after longer shut-downs. Permanent warming systems elevate metal temperature above 500 F, distinguishing them from heat tracing systems that operate at much lower temperatures for freeze protection or viscosity control. Permanent warming systems can reduced steam-turbine damage during both startup heating and off-line cooling, and can reduce plant startup time.

Swanekamp, R.

1994-08-01T23:59:59.000Z

409

AIR: THE GREAT, THE LARGE and the small. Lecture 3-4. P.B.Rhines 5 ii 2003  

E-Print Network (OSTI)

(warm) air rises. · the sun heats the tropics more than the Poles, leading to a distribution of air (and its circulation). Here our earlier ideas about sun's radiation are important too. The atmosphere, which trap pollutants in the lower atmosphere. · the basic temperature decreases by about 500 C from

410

Global Warming: What It Is What Is Controversial About It and What We Might Do in Response to It  

E-Print Network (OSTI)

along coasts. If global warming occurs, many environmentalSee, eg. , S. SCHNEIDER, GLOBAL WARMING: ARE WE ENTERING THETRANSITION (1989); Roberts, Global Warming: Blaming The Sun,

Botkin, Daniel B.

1991-01-01T23:59:59.000Z

411

Will U.S. Agriculture Really Benefit from Global Warming? Accounting for Irrigation in the Hedonic Approach  

E-Print Network (OSTI)

Really Benefit from Global Warming? Accounting forR. , The Impact of Global Warming on Agriculture: Comment,371411. , The Impact of Global Warming on Agriculture: A

Schlenker, Wolfram; Hanemann, W. Michael; Fisher, Anthony C.

2004-01-01T23:59:59.000Z

412

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

413

Global warming alters sound transmission: differential impact on the prey detection ability of echolocating bats  

Science Journals Connector (OSTI)

...research-article Research articles 1004 69 Global warming alters sound transmission: differential...change in community composition. Global warming can thus directly affect the prey...prey. echolocation|foraging|global warming|sensory ecology|species interactions...

2014-01-01T23:59:59.000Z

414

Respiratory control in aquatic insects dictates their vulnerability to global warming  

Science Journals Connector (OSTI)

...their vulnerability to global warming Wilco C. E. P. Verberk...synergistic effects of global warming and hypoxia. 2. Material...Thermal tolerance and the global redistribution of animals...confound long-term warming effects on river macroinvertebrates...

2013-01-01T23:59:59.000Z

415

Warming up, turning sour, losing breath: ocean biogeochemistry under global change  

Science Journals Connector (OSTI)

...hydrological cycle in response to global warming. Particularly in the high latitudes...This effect could be modified by global warming-induced changes in the upwelling...emission targets for limiting global warming to 2CNature 458 11581162 10...

2011-01-01T23:59:59.000Z

416

Global warming from chlorofluorocarbons and their alternatives: Time scales of chemistry and climate  

E-Print Network (OSTI)

and their replacements on global warming. Nature Hansen J. ,gas emissions to global warming. Nature London Amendment toNature 315, 649-652, Global warming time scales WMO (World

Ko, Malcolm K.W.; Sze, Nien Dak; Molnar, Gyula; Prather, Michael J

1993-01-01T23:59:59.000Z

417

Review: The Global Warming Reader: A Century of Writing About Climate Change  

E-Print Network (OSTI)

Review: The Global Warming Reader: A Century of WritingMcKibben, Bill, ed. The Global Warming Reader: A Century ofrecord of no action on global warming. Those who have done

Anderson, Byron P.

2013-01-01T23:59:59.000Z

418

Amazon Basin climate under global warming: the role of the sea surface temperature  

Science Journals Connector (OSTI)

...Amazon Basin climate under global warming: the role of the sea surface...temperature|carbon cycle|global warming| 1. Introduction First-generation...further into two components: a global mean warming (MW) and gridbox local anomalies...

2008-01-01T23:59:59.000Z

419

The reef-building coral Siderastrea siderea exhibits parabolic responses to ocean acidification and warming  

Science Journals Connector (OSTI)

...ocean acidification and warming Karl D. Castillo 1 Justin...are predicted to cause global average surface ocean...2553 microatm) and warming (25, 28, 32C) on...ocean acidification and global warming through pH up-regulation...

2014-01-01T23:59:59.000Z

420

Effect of warm up on energy cost and energy sources of a ballet dance exercise  

Science Journals Connector (OSTI)

To evaluate the effect of warm up on energy cost and energy sources of a ballet dance exercise, 12...tours piqus en dedans on pointe...) without and following a warm up. Warm up consisted in a light running foll...

Laura Guidetti; Gian Pietro Emerenziani

2007-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "warm air furnace" 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

AISI/DOE Technology Roadmap Program Hot Oxygen Injection Into The Blast Furnace  

SciTech Connect

Increased levels of blast furnace coal injection are needed to further lower coke requirements and provide more flexibility in furnace productivity. The direct injection of high temperature oxygen with coal in the blast furnace blowpipe and tuyere offers better coal dispersion at high local oxygen concentrations, optimizing the use of oxygen in the blast furnace. Based on pilot scale tests, coal injection can be increased by 75 pounds per ton of hot metal (lb/thm), yielding net savings of $0.84/tm. Potential productivity increases of 15 percent would yield another $1.95/thm. In this project, commercial-scale hot oxygen injection from a ''thermal nozzle'' system, patented by Praxair, Inc., has been developed, integrated into, and demonstrated on two tuyeres of the U.S. Steel Gary Works no. 6 blast furnace. The goals were to evaluate heat load on furnace components from hot oxygen injection, demonstrate a safe and reliable lance and flow control design, and qualitatively observe hot oxygen-coal interaction. All three goals have been successfully met. Heat load on the blowpipe is essentially unchanged with hot oxygen. Total heat load on the tuyere increases about 10% and heat load on the tuyere tip increases about 50%. Bosh temperatures remained within the usual operating range. Performance in all these areas is acceptable. Lance performance was improved during testing by changes to lance materials and operating practices. The lance fuel tip was changed from copper to a nickel alloy to eliminate oxidation problems that severely limited tip life. Ignition flow rates and oxygen-fuel ratios were changed to counter the effects of blowpipe pressure fluctuations caused by natural resonance and by coal/coke combustion in the tuyere and raceway. Lances can now be reliably ignited using the hot blast as the ignition source. Blowpipe pressures were analyzed to evaluate ht oxygen-coal interactions. The data suggest that hot oxygen increases coal combustion in the blow pipe and tuyere by 30, in line with pilot scale tests conducted previously.

Michael F. Riley

2002-10-21T23:59:59.000Z

422

4 - Modeling the Relationship Between Global Warming, Violence, and Crime  

Science Journals Connector (OSTI)

Abstract One of the challenges of global warming research to the social sciences is that physical science research modalities are different. Consequently, efforts to tie it to the social sciences, particularly those related to violence and crime, are difficult to develop. This chapter looks at two models to assess the linkages between global warming and crime. The first, the Homer-Dixon model, uses a resource scarcity model to look at these linkages. According to the Homer-Dixon model, many aspects of global warming produce scarcities such as food shortages, ranch and farmland loss, and clean-water shortages. By tracing the indirect effects of scarcities through intervening variables of migration and state hardening, the model allows us to see various kinds of crime and violence that might happen under global warming conditions. The second model is the Agnew model, developed to assess theoretical linkages between crime and global warming, primarily focusing on social disorganization and strain perspectives. The second model fills a critical shortcoming in the first model; it provides a nuanced notion of crime and crime theory. Hence, it provides a needed back end of crime outcomes to tie into the Homer-Dixon model. Also, we discuss the way in which many dimensions of global warming can be modeled relatively straightforwardly into a routine activities perspective, where the social and economic disruptions caused by global warming give rise to new patterns of human activity and, consequently, new patterns of criminal and predatory activities.

John P. Crank; Linda S. Jacoby

2015-01-01T23:59:59.000Z

423

NETL: Gasification Systems - Integrated Warm Gas Multicontaminant Cleanup  

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

Integrated Warm Gas Multicontaminant Cleanup Technologies for Coal-Derived Syngas Integrated Warm Gas Multicontaminant Cleanup Technologies for Coal-Derived Syngas Project Number: DE-FC26-05NT42459 Integrated Warm Gas Multicontaminant Cleanup Technologies for Coal-Derived Syngas Project ID: DE-FC26-05NT42459 Objective: The objective is to develop a warm multi-contaminant syngas cleaning system for operation between 300 and 700° F. This project will continue development of the RTI warm syngas cleanup technology suite. Based on the field testing results with real syngas from Eastman Chemical Company's gasifier under DOE Contract DE-AC26-99FT40675, additional technical issues need to be addressed to move the technologies used in warm syngas cleaning further towards commercial deployment especially for chemical/fuels production. These issues range from evaluation of startup and standby options for the more developed desulfurization processes to integration and actual pilot plant testing with real coal-derived syngas for the technologies that were tested at bench scale during Phase I. Development shall continue of the warm gas syngas cleaning technology platform through a combination of lab-scale R&D and larger integrated pilot plant testing with real coal-derived syngas as well as process/systems analysis and simulation for optimization of integration and intensification.

424

Condensing economizers for small coal-fired boilers and furnaces  

SciTech Connect

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

Butcher, T.A.; Litzke, W.

1994-01-01T23:59:59.000Z

425

Metal-Air Batteries  

SciTech Connect

Metal-air batteries have much higher specific energies than most currently available primary and rechargeable batteries. Recent advances in electrode materials and electrolytes, as well as new designs on metal-air batteries, have attracted intensive effort in recent years, especially in the development of lithium-air batteries. The general principle in metal-air batteries will be reviewed in this chapter. The materials, preparation methods, and performances of metal-air batteries will be discussed. Two main metal-air batteries, Zn-air and Li-air batteries will be discussed in detail. Other type of metal-air batteries will also be described.

Zhang, Jiguang; Bruce, Peter G.; Zhang, Gregory

2011-08-01T23:59:59.000Z

426

Register Closing Effects on Forced Air Heating System Performance  

SciTech Connect

Closing registers in forced air heating systems and leaving some rooms in a house unconditioned has been suggested as a method of quickly saving energy for California consumers. This study combined laboratory measurements of the changes in duct leakage as registers are closed together with modeling techniques to estimate the changes in energy use attributed to closing registers. The results of this study showed that register closing led to increased energy use for a typical California house over a wide combination of climate, duct leakage and number of closed registers. The reduction in building thermal loads due to conditioning only a part of the house was offset by increased duct system losses; mostly due to increased duct leakage. Therefore, the register closing technique is not recommended as a viable energy saving strategy for California houses with ducts located outside conditioned space. The energy penalty associated with the register closing technique was found to be minimized if registers furthest from the air handler are closed first because this tends to only affect the pressures and air leakage for the closed off branch. Closing registers nearer the air handler tends to increase the pressures and air leakage for the whole system. Closing too many registers (more than 60%) is not recommended because the added flow resistance severely restricts the air flow though the system leading to safety concerns. For example, furnaces may operate on the high-limit switch and cooling systems may suffer from frozen coils.

Walker, Iain S.

2003-11-01T23:59:59.000Z

427

The Interplay of Global Warming Framing In News Media Coverage In 1988-2009.  

E-Print Network (OSTI)

??This study examined the framing of global warming in the national news media. It investigated the framing of global warming as a competitive process that (more)

Sinaga, Simon

2011-01-01T23:59:59.000Z

428

11 - Security Issues and Global Warming  

Science Journals Connector (OSTI)

Abstract This chapter begins with a discussion of the increasing empowerment of nonstate actors to challenge nation-states for commerce and security. One of the central trends is the operational coordination of organized crime and terrorist entities. They tend to share the same pipelines and at times some of the same personnel since both have a need for similar specialized skills. We witness the emergence of the third generation of guerillas, described as leaderless or horizontal in structure, global, and highly adaptable to urban areas. Crevalds position on guerilla wars is discussedhe asserted that states can never effectively combat guerilla wars. We then discuss the many ways in which transnational criminal organizations and terrorists are working together in the current era. From there, we assess the roles of criminalized states and black holes, geographical areas not controlled by state-based security entities. We discuss how global warming works to enhance the strengths of nonstate actors, while at the same time undermining or limiting state security. This chapter closes with a discussion of the security changes likely to be associated with an ice-free Arctic Ocean. We look at changes already occurring, and assess the roles played by the United States, Canada, Russia, and China. All are in exploration stages for previously inaccessible resources, and most are increasing their military presence across the region.

John P. Crank; Linda S. Jacoby

2015-01-01T23:59:59.000Z

429

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

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

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

430

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

431

Computational Fluid Dynamics (CFD) Modeling for High Rate Pulverized Coal Injection (PCI) into the Blast Furnace  

SciTech Connect

Pulverized coal injection (PCI) into the blast furnace (BF) has been recognized as an effective way to decrease the coke and total energy consumption along with minimization of environmental impacts. However, increasing the amount of coal injected into the BF is currently limited by the lack of knowledge of some issues related to the process. It is therefore important to understand the complex physical and chemical phenomena in the PCI process. Due to the difficulty in attaining trus BF measurements, Computational fluid dynamics (CFD) modeling has been identified as a useful technology to provide such knowledge. CFD simulation is powerful for providing detailed information on flow properties and performing parametric studies for process design and optimization. In this project, comprehensive 3-D CFD models have been developed to simulate the PCI process under actual furnace conditions. These models provide raceway size and flow property distributions. The results have provided guidance for optimizing the PCI process.

Dr. Chenn Zhou

2008-10-15T23:59:59.000Z

432

Furnace Creek Inn Pool & Spa Low Temperature Geothermal Facility | Open  

Open Energy Info (EERE)

Inn Pool & Spa Low Temperature Geothermal Facility Inn Pool & Spa Low Temperature Geothermal Facility Jump to: navigation, search Name Furnace Creek Inn Pool & Spa Low Temperature Geothermal Facility Facility Furnace Creek Inn Sector Geothermal energy Type Pool and Spa Location Death Valley, California Coordinates Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

433

Air Pollution Control  

Science Journals Connector (OSTI)

Petroleum and chemical processes are responsible for many emissions both into the air. Most relevant emissions into the air are nitrous oxides (NOx), sulfur oxides ... compounds (VOC).The major cause of all air pollution

Alireza Bahadori

2014-01-01T23:59:59.000Z

434

Hickam Air Force Base  

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

Hickam Air Force Base spans 2,850 acres in Honolulu, Hawaii. The military base is home to the 15th Airlift Wing, the Hawaii Air National Guard, and the Pacific Air Forces headquarters.

435

OLYMPIC AIR QUALITY QUESTIONABLE  

Science Journals Connector (OSTI)

OLYMPIC AIR QUALITY QUESTIONABLE ... Athletes GOING FOR GOLD worry about Beijings air ... Atmospheric chemists say the air quality during the Beijing Games literally rests on which direction the winds blow. ...

RACHEL PETKEWICH

2008-07-28T23:59:59.000Z

436

Air Quality and Pollution  

Science Journals Connector (OSTI)

Air quality refers to the physical, chemical, and biological characteristics of air, both in outside space and in enclosed ... other non?industrial working places, and residencies. Air pollution is the abnormal ...

Zoran Marmut

2008-01-01T23:59:59.000Z

437

The determination of some anions using ion chromatography and ion chromatography-graphite furnace atomic absorption spectrometry  

E-Print Network (OSTI)

THE DETERMINATION OF SOME ANIONS USING ION CHROMATOGRAPHY AND ION CHROMATOGRAPHY-GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY A Thesis by DANIEL C. J. HILLMAN Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE August 1981 Major Subject: Chemistry THE DETERMINATION OF SOME ANIONS USING ION CHROMATOGRAPHY AND ION CHROMATOGRAPHY-GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY A Thesis by DANIEL C. J. HILLMAN...

Hillman, Daniel C

1981-01-01T23:59:59.000Z

438

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

SciTech Connect

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

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

2005-05-31T23:59:59.000Z

439

RADIATION HEAT TRANSFER ENVIRONMENT IN FIRE AND FURNACE TESTS OF RADIOACTIVE MATERIALS PAKCAGES  

SciTech Connect

The Hypothetical Accident Conditions (HAC) sequential test of radioactive materials packages includes a thermal test to confirm the ability of the package to withstand a transportation fire event. The test specified by the regulations (10 CFR 71) consists of a 30 minute, all engulfing, hydrocarbon fuel fire, with an average flame temperature of at least 800 C. The requirements specify an average emissivity for the fire of at least 0.9, which implies an essentially black radiation environment. Alternate test which provide equivalent total heat input at the 800 C time averaged environmental temperature may also be employed. When alternate tests methods are employed, such as furnace or gaseous fuel fires, the equivalence of the radiation environment may require justification. The effects of furnace and open confinement fire environments are compared with the regulatory fire environment, including the effects of gases resulting from decomposition of package overpack materials. The results indicate that furnace tests can produce the required radiation heat transfer environment, i.e., equivalent to the postulated pool fire. An open enclosure, with transparent (low emissivity) fire does not produce an equivalent radiation environment.

Smith, A

2008-12-31T23:59:59.000Z

440

FURN3D: A computer code for radiative heat transfer in pulverized coal furnaces  

SciTech Connect

A computer code FURN3D has been developed for assessing the impact of burning different coals on heat absorption pattern in pulverized coal furnaces. The code is unique in its ability to conduct detailed spectral calculations of radiation transport in furnaces fully accounting for the size distributions of char, soot and ash particles, ash content, and ash composition. The code uses a hybrid technique of solving the three-dimensional radiation transport equation for absorbing, emitting and anisotropically scattering media. The technique achieves an optimal mix of computational speed and accuracy by combining the discrete ordinate method (S[sub 4]), modified differential approximation (MDA) and P, approximation in different range of optical thicknesses. The code uses spectroscopic data for estimating the absorption coefficients of participating gases C0[sub 2], H[sub 2]0 and CO. It invokes Mie theory for determining the extinction and scattering coefficients of combustion particulates. The optical constants of char, soot and ash are obtained from dispersion relations derived from reflectivity, transmissivity and extinction measurements. A control-volume formulation is adopted for determining the temperature field inside the furnace. A simple char burnout model is employed for estimating heat release and evolution of particle size distribution. The code is written in Fortran 77, has modular form, and is machine-independent. The computer memory required by the code depends upon the number of grid points specified and whether the transport calculations are performed on spectral or gray basis.

Ahluwalia, R.K.; Im, K.H.

1992-08-01T23:59:59.000Z

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


441

FURN3D: A computer code for radiative heat transfer in pulverized coal furnaces  

SciTech Connect

A computer code FURN3D has been developed for assessing the impact of burning different coals on heat absorption pattern in pulverized coal furnaces. The code is unique in its ability to conduct detailed spectral calculations of radiation transport in furnaces fully accounting for the size distributions of char, soot and ash particles, ash content, and ash composition. The code uses a hybrid technique of solving the three-dimensional radiation transport equation for absorbing, emitting and anisotropically scattering media. The technique achieves an optimal mix of computational speed and accuracy by combining the discrete ordinate method (S{sub 4}), modified differential approximation (MDA) and P, approximation in different range of optical thicknesses. The code uses spectroscopic data for estimating the absorption coefficients of participating gases C0{sub 2}, H{sub 2}0 and CO. It invokes Mie theory for determining the extinction and scattering coefficients of combustion particulates. The optical constants of char, soot and ash are obtained from dispersion relations derived from reflectivity, transmissivity and extinction measurements. A control-volume formulation is adopted for determining the temperature field inside the furnace. A simple char burnout model is employed for estimating heat release and evolution of particle size distribution. The code is written in Fortran 77, has modular form, and is machine-independent. The computer memory required by the code depends upon the number of grid points specified and whether the transport calculations are performed on spectral or gray basis.

Ahluwalia, R.K.; Im, K.H.

1992-08-01T23:59:59.000Z

442

Production and blast-furnace smelting of boron-alloyed iron-ore pellets  

SciTech Connect

Industrial test data are presented regarding the production (at Sokolovsk-Sarbaisk mining and enrichment enterprise) and blast-furnace smelting (at Magnitogorsk metallurgical works) of boron-alloyed iron-ore pellets (500000 t). It is shown that, thanks to the presence of boron, the compressive strength of the roasted pellets is increased by 18.5%, while the strength in reduction is doubled; the limestone consumption is reduced by 11%, the bentonite consumption is halved, and the dust content of the gases in the last section of the roasting machines is reduced by 20%. In blast-furnace smelting, the yield of low-sulfur (<0.02%) hot metal is increased from 65-70 to 85.1% and the furnace productivity from 2.17-2.20 to 2.27 t/(m{sup 3} day); coke consumption is reduced by 3-8 kg/t of hot metal. The plasticity and stamping properties of 08IO auto-industry steel are improved by microadditions of boron.

A.A. Akberdin; A.S. Kim [Abishev Chemicometallurgical Institute, Abishev (Kazakhstan)

2008-08-15T23:59:59.000Z

443

Are You Keeping Warm This Winter? | Department of Energy  

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

Are You Keeping Warm This Winter? Are You Keeping Warm This Winter? Are You Keeping Warm This Winter? January 23, 2013 - 4:33pm Addthis An efficient heater can save money and energy while keeping you warmer. | Photo by Dennis Schroeder, NREL 20288. An efficient heater can save money and energy while keeping you warmer. | Photo by Dennis Schroeder, NREL 20288. Elizabeth Spencer Communicator, National Renewable Energy Laboratory How can I participate? Get an energy audit and learn about your heating options to warm your home while saving money. Last week, I turned on the weather forecast to find that the entire central United States was hovering somewhere between 5 and 20 degrees. Talk about frigid! I've lived all over the country, and I know how incredibly miserable it is to do anything when the high barely ekes above 0 degrees

444

Building Energy Software Tools Directory: AkWarm  

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

AkWarm AkWarm AkWarm logo. Innovative, user-friendly, Windows-based software for home energy modeling. AkWarm is designed for weatherization assessment and the EPA Energy Star Home energy rating program. Features include: Graphical display of energy use by building component, improvement options analysis, design heat load, calculates CO2 emissions, and shows code compliance. Utility, weather data, and other libraries are maintained in a database library for easy updating. A separate database is available to archive all input and output data for detailed analysis of housing types, trends, amd energy use. Keywords home energy rating systems, home energy, residential modeling, weatherization Validation/Testing N/A Expertise Required Basic understanding of building construction, with a minimal level of

445

Are You Keeping Warm This Winter? | Department of Energy  

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

Are You Keeping Warm This Winter? Are You Keeping Warm This Winter? Are You Keeping Warm This Winter? January 23, 2013 - 4:33pm Addthis An efficient heater can save money and energy while keeping you warmer. | Photo by Dennis Schroeder, NREL 20288. An efficient heater can save money and energy while keeping you warmer. | Photo by Dennis Schroeder, NREL 20288. Elizabeth Spencer Communicator, National Renewable Energy Laboratory How can I participate? Get an energy audit and learn about your heating options to warm your home while saving money. Last week, I turned on the weather forecast to find that the entire central United States was hovering somewhere between 5 and 20 degrees. Talk about frigid! I've lived all over the country, and I know how incredibly miserable it is to do anything when the high barely ekes above 0 degrees

446

Warm coats, big thanks | Y-12 National Security Complex  

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

Community / Warm coats, big thanks Community / Warm coats, big thanks Warm coats, big thanks Posted: January 9, 2014 - 2:23pm Over the last 12 years, Y-12ers have donated almost 7000 coats, sweaters and other winter wear to the Volunteer Ministry Center. As East Tennessee faces the coldest temperatures seen in a long while, Y-12ers have shown their volunteer spirit for the twelfth straight year by helping countless people stay warm thanks to another successful United Way Coat Drive to benefit the Volunteer Ministry Center. In total, the site donated 589 coats and winter wear items, 64 pairs of gloves, 47 scarves, and 66 hats and toboggans, which VMC makes available to the public through its Knoxville office. In addition, this year's efforts were expanded to include collection of toiletries for VMC. Y-12 collected more than 20 copy paper boxes full of

447

Wildfires may contribute more to global warming than previously predicted  

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

Wildfires may contribute more to global warming Wildfires may contribute more to global warming Wildfires may contribute more to global warming than previously predicted They suggest that fire emissions could contribute a lot more to the observed climate warming than current estimates show. July 9, 2013 Haze of smoke emanating from the 2011 Las Conchas, NM fire. Haze of smoke emanating from the 2011 Las Conchas, NM fire. Contact Nancy Ambrosiano Communications Office (505) 667-0471 Email "The fact that we are experiencing more fires and that climate change may increase fire frequency underscores the need to include these specialized particles in the computer models, and our results show how this can be done," Dubey said. Particle analysis shows "tar ball" effect is significant LOS ALAMOS, N.M., July 9, 2013-Wildfires produce a witch's brew of

448

Wildfires may contribute more to global warming than previously predicted  

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

Wildfires may contribute more to global warming Wildfires may contribute more to global warming Wildfires may contribute more to global warming than previously predicted They suggest that fire emissions could contribute a lot more to the observed climate warming than current estimates show. July 9, 2013 Haze of smoke emanating from the 2011 Las Conchas, NM fire. Haze of smoke emanating from the 2011 Las Conchas, NM fire. Contact Nancy Ambrosiano Communications Office (505) 667-0471 Email "The fact that we are experiencing more fires and that climate change may increase fire frequency underscores the need to include these specialized particles in the computer models, and our results show how this can be done," Dubey said. Particle analysis shows "tar ball" effect is significant LOS ALAMOS, N.M., July 9, 2013-Wildfires produce a witch's brew of

449

Warm Weather and the Daily Commute | Department of Energy  

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

Warm Weather and the Daily Commute Warm Weather and the Daily Commute Warm Weather and the Daily Commute May 7, 2013 - 12:02pm Addthis Biking to work helps you get some exercise while reducing your carbon footprint. | Photo courtesy of iStockphoto.com/olaser Biking to work helps you get some exercise while reducing your carbon footprint. | Photo courtesy of iStockphoto.com/olaser Elizabeth Spencer Communicator, National Renewable Energy Laboratory How can I participate? Check out options for busing or carpooling in your area or, if you live close, try walking or biking to work. You know the weather is starting to warm up when you start hearing about those "bike, bus, or walk to work" challenges. And while my local news just started drumming up publicity for theirs, I've seen these events pop up in

450

Brooks Warm Springs Aquaculture Low Temperature Geothermal Facility | Open  

Open Energy Info (EERE)

Warm Springs Aquaculture Low Temperature Geothermal Facility Warm Springs Aquaculture Low Temperature Geothermal Facility Jump to: navigation, search Name Brooks Warm Springs Aquaculture Low Temperature Geothermal Facility Facility Brooks Warm Springs Sector Geothermal energy Type Aquaculture Location Fergus County, Montana Coordinates 47.2126745°, -109.4141° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

451

Infrared absorption spectra, radiative efficiencies, and global warming potentials  

E-Print Network (OSTI)

. Nutt,3 Keith P. Shine,4 Kevin Smith,5 and Timothy J. Wallington2 Received 17 July 2010; revised 21. Wallington (2010), Infrared absorption spectra, radiative efficiencies, and global warming potentials

Wirosoetisno, Djoko

452

Global warming potentials and radiative efficiencies of halocarbons and related  

E-Print Network (OSTI)

,2 J. S. Fuglestvedt,1 G. Marston,3 G. Myhre,1 C. J. Nielsen,4 K. P. Shine,2 and T. J. Wallington5. Nielsen, K. P. Shine, and T. J. Wallington (2013), Global warming potentials and radiative ef ciencies

Wirosoetisno, Djoko

453

Physical aspects of the greenhouse effect and global warming  

Science Journals Connector (OSTI)

According to the simplest model of the earths radiative balance global warming will occur with certainty as humankind increases its production and consumption of nonsolar energy. This prediction is revisited using a broader model that allows the greenhouse effect to be considered. The new model predicts a global warming of ?T E =(114? K )? where ? is the rate of surface energy release in units of the average incident solar radiation 342? W?m ?2 and ?T E is the average temperature rise at the earths surface. Present values of these quantities excluding geothermal sources are ?=0.6910 ?4 and ?T E =7.9? mK . The model assigns a small number of optical parameters to the atmosphere and surface and qualifies the simple warming prediction: It is rigorous only if parameters other than ? are unchanged. The model is not complex and should serve as an aid to an elementary understanding of global warming.

Robert S. Knox

1999-01-01T23:59:59.000Z

454

SPECIAL EARTH DAY COLLOQUIUM: How Global Warming Is Heating Things...  

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

18, 2013, 12:00pm to 1:30pm Colloquia MBG Auditorium SPECIAL EARTH DAY COLLOQUIUM: How Global Warming Is Heating Things Up at Work Dr. John P. Dunne Geophysical Fluid Dynamics...

455

Upper-tropospheric moistening in response to anthropogenic warming  

Science Journals Connector (OSTI)

Upper-tropospheric moistening in response to anthropogenic warming 10.1073/pnas.1409659111 Eui-Seok Chung Brian Soden B. J. Sohn Lei Shi aRosenstiel School of Marine and Atmospheric Science, University of Miami, Miami...

Eui-Seok Chung; Brian Soden; B. J. Sohn; Lei Shi

2014-01-01T23:59:59.000Z

456

Diurnal Variations of Warm-Season Precipitation over Northern China  

Science Journals Connector (OSTI)

This study examines the diurnal variations of the warm-season precipitation over northern China using the high-resolution precipitation products obtained from the Climate Prediction Centers morphing technique (CMORPH) during MayAugust of 2003...

Huizhong He; Fuqing Zhang

2010-04-01T23:59:59.000Z

457

Warm Conveyor Belts in Idealized Moist Baroclinic Wave Simulations  

Science Journals Connector (OSTI)

This idealized modeling study of moist baroclinic waves addresses the formation of moist ascending airstreams, so-called warm conveyor belts (WCBs), their characteristics, and their significance for the downstream flow evolution. Baroclinic wave ...

Sebastian Schemm; Heini Wernli; Lukas Papritz

2013-02-01T23:59:59.000Z

458

A 15-Year Climatology of Warm Conveyor Belts  

Science Journals Connector (OSTI)

This study presents the first climatology of so-called warm conveyor belts (WCBs), strongly ascending moist airstreams in extratropical cyclones that, on the time scale of 2 days, rise from the boundary layer to the upper troposphere. The ...

Sabine Eckhardt; Andreas Stohl; Heini Wernli; Paul James; Caroline Forster; Nicole Spichtinger

2004-01-01T23:59:59.000Z

459

Modeling the Impact of Warming in Climate Change Economics  

E-Print Network (OSTI)

Any economic analysis of climate change policy requires some model that describes the impact of warming on future GDP and consumption. Most integrated assessment models (IAMs) relate temperature to the level of real GDP ...

Pindyck, Robert S.

460

Thomson Scattering from Warm Dense Matter W. R. Johnson  

E-Print Network (OSTI)

Thomson Scattering from Warm Dense Matter W. R. Johnson University of Notre Dame, Notre Dame in cell method. Email addresses: johnson@nd.edu (W. R. Johnson), nilsen1@llnl.gov (J. Nilsen), ktcheng

Johnson, Walter R.

Note: This page contains sample records for the topic "warm air furnace" 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

Rising Sea Levels Due to Global Warming Are Unstoppable  

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

Levels Due to Global Warming Are Unstoppable Mitigation can slow down but not prevent sea level rise for centuries to come August 5, 2013 Contact: Linda Vu, Lvu@lbl.gov, +1 510 495...

462

Recent Bottom Water Warming in the Pacific Ocean  

Science Journals Connector (OSTI)

Decadal changes of abyssal temperature in the Pacific Ocean are analyzed using high-quality, full-depth hydrographic sections, each occupied at least twice between 1984 and 2006. The deep warming found over this time period agrees with previous ...

Gregory C. Johnson; Sabine Mecking; Bernadette M. Sloyan; Susan E. Wijffels

2007-11-01T23:59:59.000Z

463

Observing Warm Clouds in 3D Using ARM Scanning Cloud  

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

Observing Warm Clouds in 3D Using ARM Scanning Cloud Radars and a Novel Ensemble Method For original submission and image(s), see ARM Research Highlights http:www.arm.gov...

464

St. Augustinegrass Warm-season turfgrass. Prefers full sun, but  

E-Print Network (OSTI)

St. Augustinegrass Warm-season turfgrass. Prefers full sun, but has a high tolerance for shade-season grass. It does best in full sun and high temperatures. Goes dormant and turns brown in winter. Very

Ishida, Yuko

465

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

SciTech Connect

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

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

2007-07-01T23:59:59.000Z

466

Global air quality and climate  

E-Print Network (OSTI)

ice, have the potential to slow near-term warming, but uncertainties in coincident emissions of re?ective (cooling)

2012-01-01T23:59:59.000Z

467

Primary zone air proportioner  

DOE Patents (OSTI)

An air proportioner is provided for a liquid hydrocarbon fueled gas turbine of the type which is convertible to oil gas fuel and to coal gas fuel. The turbine includes a shell for enclosing the turbine, an air duct for venting air in said shell to a gasifier, and a fuel injector for injecting gasified fuel into the turbine. The air proportioner comprises a second air duct for venting air from the air duct for mixing with fuel from the gasifier. The air can be directly injected into the gas combustion basket along with the fuel from the injector or premixed with fuel from the gasifier prior to injection by the fuel injector.

Cleary, Edward N. G. (San Diego, CA)

1982-10-12T23:59:59.000Z

468

Environmental Impact on Applied Technology- Global Warming CFCs & VOCs  

E-Print Network (OSTI)

Fuel Oil -3299 -3093 -2834 Coal -4545 -4338 -4079 Wood Waste -5232 -5025 -4766 Coping With Environmental Pressures The textile finishing industry, pulp and paper and thers rejecting large quantities of warm water are undegoing increased... Fuel Oil -3299 -3093 -2834 Coal -4545 -4338 -4079 Wood Waste -5232 -5025 -4766 Coping With Environmental Pressures The textile finishing industry, pulp and paper and thers rejecting large quantities of warm water are undegoing increased...

Gilbert, J. S.

469

Abandoned Soviet farmlands could help offset global warming  

Science Journals Connector (OSTI)

Abandoned Soviet farmlands could help offset global warming ... Also, should these countries find themselves with carbon-emissions treaty obligations following the upcoming Copenhagen conference on global warming, burning grasses in lieu of coal would give them carbon credits forever, says Wolf. ... Coal and oil, on the other hand, took the CO2 out of the atmosphere millions of years ago, so burning them only adds to the global CO2 supply. ...

Christopher Pala

2009-10-28T23:59:59.000Z

470

Review: Air Pollution and Global Warming: History, Science, and Solutions, 2nd ed.  

E-Print Network (OSTI)

catastrophic risks with wind and solar power are zero (p.a comparative table of Power available in wind, water, andwind, wave, geothermal, hydroelectric, tidal turbines, solar and concentrated solar power (

Laberge, Yves

2013-01-01T23:59:59.000Z

471

Indoor Air Pollution in China: Analysis of Global Warming Contributions and Exposure to Particles.  

E-Print Network (OSTI)

??About 60% of the Chinese population lives in rural areas, where biomass and coal are the main sources of energy for cooking and heating. Indoor (more)

Alnes, Line Winther Hansen

2008-01-01T23:59:59.000Z

472

Comfort under personally controlled air movement in warm and humid environments  

E-Print Network (OSTI)

In: Proceedings of Healthy Buildings conference, vol. 1;the ASHRAE database. Healthy Buildings 2009, Syracuse, NY,pp. 19541960 Wyon DP. Healthy buildings and their impact on

Zhai, Yongchao; Zhang, Hui; Zhang, Yufeng; Pasut, Wilmer; Arens, Edward; Meng, Qinglin

2013-01-01T23:59:59.000Z

473

Global warming implications of non-fluorocarbon technologies as CFC replacements  

SciTech Connect

Many technologies could be developed for use in place of conventional compression systems for refrigeration and air conditioning. Comparisons of the global warming impacts using TEWI (Total Equivalent Warming Impact) can be used to identify alternatives that have the potential for lower environmental impacts than electric-driven vapor compression systems using HCFCs and HFCs. Some options, such as secondary heat transfer loops in commercial refrigeration systems to reduce refrigerant charge and emission rates, could be useful in reducing the losses of refrigerants to the atmosphere. Use of ammonia instead of a fluorocarbon in a system with a secondary loop offers only a small potential for decreasing TEWI, and this may not warrant the increased complexity and risks of using ammonia in a retail sales environment. A few technologies, such as adsorption heat pumps, have efficiency levels that show reduced TEWI levels compared to conventional and state of the art compression systems, and further development could lead to an even more favorable comparison. Health and safety risks of the alternative technologies and the materials they employ must also be considered.

Fischer, S.K.; Tomlinson, J.J.

1993-12-31T23:59:59.000Z

474

Predicting and mitigating the global warming potential of agro-ecosystems  

E-Print Network (OSTI)

Predicting and mitigating the global warming potential of agro-ecosystems S. Lehugera 1 , B and methane are the main biogenic greenhouse gases (GHG) con-2 tributing to the global warming potential (GWP to design productive16 agro-ecosystems with low global warming impact.17 Keywords18 Global warming potential

Paris-Sud XI, Université de

475

Game Theory and Global Warming Steve Schecter (North Carolina State University)  

E-Print Network (OSTI)

Game Theory and Global Warming Steve Schecter (North Carolina State University) Mary Lou Zeeman global warming game It's time to negotiate a new treaty to stop global warming. · Player 1: Governments, Brazil, Mexico, . . . ). Situation: · An investment of $2 trillion is needed to stop global warming

Schecter, Stephen

476

Increased Climate Variability Is More Visible Than Global Warming: A General  

E-Print Network (OSTI)

Increased Climate Variability Is More Visible Than Global Warming: A General System@utep.edu Abstract While global warming is a statistically confirmed long-term phenomenon, its most visible than the global warming itself. 1 Formulation of the Problem What is global warming. The term "global

Kreinovich, Vladik

477

Impact of global dimming and brightening on global warming Martin Wild,1  

E-Print Network (OSTI)

Impact of global dimming and brightening on global warming Martin Wild,1 Atsumu Ohmura,1 and Knut February 2007. [1] Speculations on the impact of variations in surface solar radiation on global warming was responsible for the observed warming. To disentangle surface solar and greenhouse influences on global warming

Fischlin, Andreas

478

Air Pollution Spring 2010  

E-Print Network (OSTI)

and control. 6. Examine regional and global air pollution issues. Prerequisite: CHEM 113 and (MATH 261 or MATHATS 555 Air Pollution Spring 2010 T Th 11:00 ­ 12:15, NESB 101 Instructor: Prof. Sonia Kreidenweis an understanding of types and sources of air pollution. 2. Examine concentrations of air pollutants

479

Combustion of high-sulfur coal and anthracite wastes in a rotary kiln combustor with an advanced internal air distributor  

SciTech Connect

Fluid bed combustors have received extensive testing with both high-sulfur coal and anthracite wastes. Rotary kilns are effective and popular devices for waste combustion. The Angelo Rotary Furnace{trademark} has been developed to improve the operation of rotary pyrolyzer/combustor systems through enhanced air distribution, which in this process is defined as staged, swirled combustion air injection. Fourteen of these new furnaces have been installed worldwide. Two units in Thailand, designed for rice hull feed with occasional lignite feed, have been recently started up. An older unit in Pennsylvania is being upgraded with a new, more advanced air distribution system for a series of tests this fall in which inexpensive high-sulfur coal and anthracite wastes will be fired with limestone. The purposes of these tests are to determine the burning characteristics of these two fuels in this system, to discover the Ca/S ratios necessary for operation of a rotary kiln combusting these fuels, and to observe the gas-borne emissions from the furnace. An extensive preliminary design study will be performed on a commercial installation for combustion of anthracite wastes. 14 refs., 5 figs., 1 tab.

Cobb, J.T. Jr. (Pittsburgh Univ., PA (USA)); Ahn, Y.K. (Gilbert/Commonwealth, Inc., Reading, PA (USA)); Angelo, J.F. (Universal Energy International, Inc., Little Rock, AR (USA))

1990-01-01T23:59:59.000Z

480

Momentum Flux Budget across the AirSea Interface under Uniform and Tropical Cyclone Winds  

E-Print Network (OSTI)

into ocean currents is equal to the flux from air (wind stress). However, when the surface wave field grows into currents under TCs. 1. Introduction The passage of a tropical cyclone (TC) over a warm ocean represents one is mainly due to the vertical turbulent mixing induced by the strong momentum flux into ocean currents

Rhode Island, University of

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481

A heuristic predictive logic controller applied to hybrid solar air conditioning plant  

Science Journals Connector (OSTI)

This paper shows the development of a heuristic predictive logic controller (HPLoC) applied to a solar air conditioning plant. The plant uses two energy sources, solar and gas, in order to warm up the water. The hot water feeds a single-effect absorption ...

Darine Zambrano; Winston Garca-Gabn; Eduardo F. Camacho

2007-04-01T23:59:59.000Z

482

Usiing NovoCOS cleaning equipment in repairing the furnace-chamber lining in coke batteries 4 & 5 at OAO Koks  

SciTech Connect

Experience with a new surface-preparation technology for the ceramic resurfacing of the refractory furnace-chamber lining in coke batteries is described.

S.G. Protasov; R. Linden; A. Gross [OAO Koks, Kemerovo (Russian Federation)

2009-05-15T23:59:59.000Z

483

Warm Cores around Regions of Low-Mass Star Formation  

E-Print Network (OSTI)

Warm cores (or hot corinos) around low-mass protostellar objects show a rich chemistry with strong spatial variations. This chemistry is generally attributed to the sublimation of icy mantles on dust grains initiated by the warming effect of the stellar radiation. We have used a model of the chemistry in warm cores in which the sublimation process is based on extensive laboratory data; these data indicate that sublimation from mixed ices occurs in several well-defined temperature bands. We have determined the position of these bands for the slow warming by a solar-mass star. The resulting chemistry is dominated by the sublimation process and by subsequent gas-phase reactions; strong spatial and temporal variations in certain molecular species are found to occur, and our results are, in general, consistent with observational results for the well-studied source IRAS 16293-2422. The model used is similar to one that describes the chemistry of hot cores. We infer that the chemistry of both hot cores and warm core...

Awad, Zainab; Collings, Mark P; Williams, David A

2010-01-01T23:59:59.000Z

484

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

485

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

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

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

486

2014-06-25 Issuance: Energy Conservation Standards for Residential Furnace Fans; Final Rule  

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

This document is a pre-publication Federal Register final rule regarding energy conservation standards for furnace fans, as issued by the Assistant Secretary for Energy Efficiency and Renewable Energy on June 25, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

487

Chemical And Isotopic Investigation Of Warm Springs Associated With Normal  

Open Energy Info (EERE)

Isotopic Investigation Of Warm Springs Associated With Normal Isotopic Investigation Of Warm Springs Associated With Normal Faults In Utah Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Chemical And Isotopic Investigation Of Warm Springs Associated With Normal Faults In Utah Details Activities (3) Areas (1) Regions (0) Abstract: Thermal springs associated with normal faults in Utah have been analyzed for major cations and anions, and oxygen and hydrogen isotopes. Springs with measured temperatures averaging greater than 40°C are characterized by Na + K- and SO4 + Cl-rich waters containing 103 to 104 mg/l of dissolved solids. Lower temperature springs, averaging less than 40°C, are more enriched in Ca + Mg relative to Na + K. Chemical variations monitored through time in selected thermal springs are probably produced by

488

Warm Springs State Hospital Space Heating Low Temperature Geothermal  

Open Energy Info (EERE)

State Hospital Space Heating Low Temperature Geothermal State Hospital Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Warm Springs State Hospital Space Heating Low Temperature Geothermal Facility Facility Warm Springs State Hospital Sector Geothermal energy Type Space Heating Location Warm Springs, Montana Coordinates 46.1813145°, -112.78476° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

489

NETL: Gasification Systems - Warm Gas Multi-Contaminant Removal System  

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

Warm Gas Multi-Contaminant Removal System Warm Gas Multi-Contaminant Removal System Project Number: DE-SC00008243 TDA Research, Inc. is developing a high-capacity, low-cost sorbent that removes anhydrous ammonia (NH3), mercury (Hg), and trace contaminants from coal- and coal/biomass-derived syngas. The clean-up system will be used after the bulk warm gas sulfur removal step, and remove NH3 and Hg in a regenerable manner while irreversibly capturing all other trace metals (e.g., Arsenic, Selenium) reducing their concentrations to sub parts per million (ppm) levels. Current project plans include identifying optimum chemical composition and structure that provide the best sorbent performance for removing trace contaminants, determining the effect of operating parameters, conducting multiple-cycle experiments to test the life of the sorbent for NH3 and Hg removal, and conducting a preliminary design of the sorbent reactor.

490

Roosevelt Warm Springs Institute for Rehab. Space Heating Low Temperature  

Open Energy Info (EERE)

Space Heating Low Temperature Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Roosevelt Warm Springs Institute for Rehab. Space Heating Low Temperature Geothermal Facility Facility Roosevelt Warm Springs Institute for Rehab. Sector Geothermal energy Type Space Heating Location Warm Springs, Georgia Coordinates 32.8904081°, -84.6810381° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

491

ARM - Publications: Science Team Meeting Documents: Tropical Warm Pool  

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

Tropical Warm Pool International Cloud Experiment Tropical Warm Pool International Cloud Experiment May, Peter Bureau or Meteorology Research Centre Mather, James Pacific Northwest National Laboratory Jakob, Christian BMRC One of the most complete data sets describing tropical convection ever collected will result from the upcoming Tropical Warm Pool International Cloud Experiment (TWPICE) in the area around Darwin in late 2005 and early 2006. The aims of the experiment will be to examine convective cloud systems from their initial stages through to the decay of the cirrus generated and to measure their impact on the environment. The experiment design includes an unprecedented network of ground-based observations (soundings, active and passive remote sensors) combined with a large range of low, mid and high altitude aircraft for in-situ and remote sensing

492

Atmospheric Radiation Measurement Tropical Warm Pool International Cloud Experiment  

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

Tropical Warm Pool Tropical Warm Pool International Cloud Experiment General Description The Tropical Warm Pool - International Cloud Experiment (TWP-ICE) was a collaborative effort led by the U.S. Department of Energy's Atmospheric Radiation Measurement (ARM) Program and the Australian Bureau of Meteorology. Beginning January 21 and ending February 14, 2006, the experiment was conducted in the region near the ARM Climate Research Facility in Darwin, Northern Australia. This permanent facility is fully equipped with sophisticated instruments for measuring cloud and other atmospheric properties to provide a long-term record of continuous observational data. Measurements obtained from the other experiment components (explained below) will complement this dataset to provide a detailed description of the tropical atmosphere.

493

THE FURNACE COMBUSTION AND RADIATION CHARACTERISTICS OF METHANOL AND A METHANOL/COAL SLURRY  

E-Print Network (OSTI)

of NO and N02 in a Turbulent Propane/Air Di fusion Flame,"Fuel Methanol Ethanol Ethane Propane i so Octane n - Cetanestage of the secondary Propane, at A spark air line contains

Grosshandler, W.L.

2010-01-01T23:59:59.000Z

494

Global warming description using Daisyworld model with greenhouse gases  

Science Journals Connector (OSTI)

Abstract Daisyworld is an archetypal model of the earth that is able to describe the global regulation that can emerge from the interaction between life and environment. This article proposes a model based on the original Daisyworld considering greenhouse gases emission and absorption, allowing the description of the global warming phenomenon. Global and local analyses are discussed evaluating the influence of greenhouse gases in the planet dynamics. Numerical simulations are carried out showing the general qualitative behavior of the Daisyworld for different scenarios that includes solar luminosity variations and greenhouse gases effect. Nonlinear dynamics perspective is of concern discussing a way that helps the comprehension of the global warming phenomenon.

Susana L.D. Paiva; Marcelo A. Savi; Flavio M. Viola; Albino J.K. Leiroz

2014-01-01T23:59:59.000Z

495

Can Reducing Black Carbon Emissions Counteract Global Warming?  

Science Journals Connector (OSTI)

Can Reducing Black Carbon Emissions Counteract Global Warming? ... It has been known for over 30 years that aerosols affect the Earth's radiative balance:? reflective particles (such as sulfates) have a cooling effect, and light-absorbing particles (such as BC) warm the system (3). ... Although Figure 3 shows many of the high-emitting devices that contribute most to global BC concentrations, much of the world's fuel is burned in low-emitting technologies such as pulverized coal burners and gasoline vehicles with current technology. ...

Tami C. Bond; Haolin Sun

2005-07-06T23:59:59.000Z

496

Warming impact on energy use of HVAC system in buildings of different thermal qualities and in different climates  

Science Journals Connector (OSTI)

Abstract In order to combat climate change, energy use in the building must be further reduced. Heating ventilation and air conditioning (HVAC) systems in residential buildings account for considerable fraction of global energy consumption. The potential contribution the domestic sector can make in reducing energy consumption is recognized worldwide. The driving energy of \\{HVACs\\} depends on the thermal quality of the building envelope (TQBE) and outside temperature. Definitely, building regulations are changing with the time toward reduce the thermal loads of buildings. However, most of the existing residential buildings were built to lower TQBE. For instant, 72% of residential dwellings in the 15-EU were built before 1972. To investigate the impact of warming on driving energy of \\{HVACs\\} of a residential building a computer model was developed. Three climate categories/cities were considered, i.e. Stockholm (cold), Istanbul (mild), and Doha (hot). In each city, two buildings were modeled: one was assumed to be built according to the current local buildings regulations (standard TQBE), while the anther was built to lower TQBE. The simulations were run for present and future (in 2050) outdoor designing conditions. The calculations show that the impact of the warming on annual driving energy of \\{HVACs\\} (reduction or increase) depends very much on the climate category and on the TQBE. Based on the climate and TQBE, the change in annual \\{HVACs\\} energy varies from ?7.4% (in cold climate) to 12.7% (in hot climate). In mild climate, it was shown that the warming does not have significant impact on annual \\{HVACs\\} energy. Improving the TQBE can mitigate the impact of the warming.

Mohamad Kharseh; Lobna Altorkmany; Mohammed Al-Khawaj; Ferri Hassani

2014-01-01T23:59:59.000Z

497

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

498

Healthy Air Act (Maryland)  

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

The Maryland Healthy Air Act was developed with the purpose of bringing Maryland into attainment with the National Ambient Air Quality Standards (NAAQS) for ozone and fine particulate matter by the...

499

Air and Water Pollution  

Science Journals Connector (OSTI)

Air Pollution.... Many pollutants enter our bodies through the air we breathe at 13,000l/day ... to quantitatively understand the basic environmental physics of pollution. This chapter covers the foll...

David Hafemeister

2014-01-01T23:59:59.000Z

500

Aesculap, Inc. Air Products  

E-Print Network (OSTI)

Aesculap, Inc. Air Products Air Products Foundation Alaric Compliance Services, LLC Alvin H. Butz & Herger, Inc. Sodexo Campus Services Sodexo Inc. and Affiliates Stupp Bros., Inc. Sugarbush Products, Inc

Napier, Terrence