National Library of Energy BETA

Sample records for air conditioner water

  1. Central Air Conditioners","Heat Pumps","Individual Air Conditioners...

    U.S. Energy Information Administration (EIA) Indexed Site

    Air Conditioners","District Chilled Water","Central Chillers","Packaged Air ...,2354,2114,2054,"Q","Q" "District Chilled Water ......",2750,2750,"Q",336,359,2750,386,72...

  2. Central Air Conditioners","Heat Pumps","Individual Air Conditioners...

    U.S. Energy Information Administration (EIA) Indexed Site

    Air Conditioners","District Chilled Water","Central Chillers","Packaged Air ..."Q",21,43,16,43,"Q","Q" "District Chilled Water ......",50,50,"Q",4,"Q",50,1,"Q","Q","Q" ...

  3. Common Air Conditioner Problems | Department of Energy

    Office of Environmental Management (EM)

    Common Air Conditioner Problems Common Air Conditioner Problems A refrigerant leak is one common air conditioning problem. | Photo courtesy of iStockphotoBanksPhotos. A...

  4. Maintaining Your Air Conditioner | Department of Energy

    Office of Environmental Management (EM)

    Your Air Conditioner Replacing or cleaning air conditioner filters is a critical maintenance task. | Photo courtesy of iStockphotofiremanYU. Replacing or cleaning air...

  5. Maintaining Your Air Conditioner | Department of Energy

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

    Maintaining Your Air Conditioner Maintaining Your Air Conditioner Replacing or cleaning air conditioner filters is a critical maintenance task. | Photo courtesy of ©iStockphoto/firemanYU. Replacing or cleaning air conditioner filters is a critical maintenance task. | Photo courtesy of ©iStockphoto/firemanYU. An air conditioner's filters, coils, and fins require regular maintenance for the unit to function effectively and efficiently throughout its years of service. Neglecting necessary

  6. Common Air Conditioner Problems | Department of Energy

    Energy Savers [EERE]

    Common Air Conditioner Problems Common Air Conditioner Problems A refrigerant leak is one common air conditioning problem. | Photo courtesy of ©iStockphoto/BanksPhotos. A refrigerant leak is one common air conditioning problem. | Photo courtesy of ©iStockphoto/BanksPhotos. One of the most common air conditioning problems is improper operation. If your air conditioner is on, be sure to close your home's windows and outside doors. For room air conditioners, isolate the room or a group of

  7. Room Air Conditioners | Department of Energy

    Energy Savers [EERE]

    Room Air Conditioners Room Air Conditioners A room air conditioner is one solution to cooling part of a house. | Photo courtesy of ©iStockphoto/kschulze. A room air conditioner is one solution to cooling part of a house. | Photo courtesy of ©iStockphoto/kschulze. Room or window air conditioners cool rooms rather than the entire home or business. If they provide cooling only where they're needed, room air conditioners are less expensive to operate than central units, even though their

  8. Tips: Air Conditioners | Department of Energy

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

    Tips: Air Conditioners Tips: Air Conditioners Bigger isn't always better for an air conditioner. Learn effective ways to stay cool while saving energy. | Photo courtesy of ©iStockphoto/galinast. Bigger isn't always better for an air conditioner. Learn effective ways to stay cool while saving energy. | Photo courtesy of ©iStockphoto/galinast. Buying a bigger room air conditioner won't necessarily make you feel more comfortable during the hot summer months. In fact, a room air conditioner

  9. Room Air Conditioners | Department of Energy

    Office of Environmental Management (EM)

    frequently. Based on size alone, an air conditioner generally needs 20 Btu for each square foot of living space. Other important factors to consider when selecting an air...

  10. Common Air Conditioner Problems | Department of Energy

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

    located behind the control panel, which measures the temperature of air coming into the evaporative coil. If the sensor is knocked out of position, the air conditioner could...

  11. Cromer Cycle Air Conditioner | Department of Energy

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

    Cromer Cycle Air Conditioner Cromer Cycle Air Conditioner New Air Conditioning System Uses Desiccant to Transfer Moisture and Increase Efficiency and Capacity When cooling a space to a comfortable temperature, two types of heat energy must be removed: temperature-associated sensible heat and moisture-associated latent heat. An air-conditioner coil usually operates by performing about 25% moisture removal and 75% cooling. In a typical system, over-cooling must occur to meet the moisture-removal

  12. Ex Parte Communication on Central Air-Conditioner Test Procedure...

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

    Energy (DOE) to discuss proposed amended test procedures for central air conditioners ... Ex Parte Communication on Central Air-Conditioner Test Procedure Ex Parte Memo on CACDry ...

  13. Product Standards for Air Conditioners (Japan) | Open Energy...

    Open Energy Info (EERE)

    Air Conditioners (Japan) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Product Standards for Air Conditioners (Japan) Focus Area: Appliances & Equipment Topics: Policy...

  14. Tips: Air Conditioners | Department of Energy

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

    Bigger isn't always better for an air conditioner. Learn effective ways to stay cool while saving energy. | Photo courtesy of iStockphotogalinast. Bigger isn't always better...

  15. Central Air Conditioner Enforcement Policy Statement | Department...

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

    April 24, 2014 DOE will not seek civil penalties for violations of the regional standards applicable to central air conditioners that occur prior to July 1, 2016, provided that the...

  16. Tips: Air Conditioners | Department of Energy

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

    cool while saving energy. | Photo courtesy of iStockphotogalinast. Buying a bigger room air conditioner won't necessarily make you feel more comfortable during the hot summer...

  17. High Efficiency Room Air Conditioner

    SciTech Connect (OSTI)

    Bansal, Pradeep

    2015-01-01

    This project was undertaken as a CRADA project between UT-Battelle and Geberal Electric Company and was funded by Department of Energy to design and develop of a high efficiency room air conditioner. A number of novel elements were investigated to improve the energy efficiency of a state-of-the-art WAC with base capacity of 10,000 BTU/h. One of the major modifications was made by downgrading its capacity from 10,000 BTU/hr to 8,000 BTU/hr by replacing the original compressor with a lower capacity (8,000 BTU/hr) but high efficiency compressor having an EER of 9.7 as compared with 9.3 of the original compressor. However, all heat exchangers from the original unit were retained to provide higher EER. The other subsequent major modifications included- (i) the AC fan motor was replaced by a brushless high efficiency ECM motor along with its fan housing, (ii) the capillary tube was replaced with a needle valve to better control the refrigerant flow and refrigerant set points, and (iii) the unit was tested with a drop-in environmentally friendly binary mixture of R32 (90% molar concentration)/R125 (10% molar concentration). The WAC was tested in the environmental chambers at ORNL as per the design rating conditions of AHAM/ASHRAE (Outdoor- 95F and 40%RH, Indoor- 80F, 51.5%RH). All these modifications resulted in enhancing the EER of the WAC by up to 25%.

  18. High-Efficiency Window Air Conditioners - Building America Top Innovation |

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

    Department of Energy High-Efficiency Window Air Conditioners - Building America Top Innovation High-Efficiency Window Air Conditioners - Building America Top Innovation This photo shows a window air conditioning unit in place in a window frame. Window air conditioners are inexpensive, portable, and can be installed by home occupants, making them a good solution for spot cooling and for installing air conditioning into homes that lack ductwork. However, window air conditioners have low

  19. Ductless Mini-Split Air Conditioners | Department of Energy

    Office of Environmental Management (EM)

    Mini-Split Air Conditioners A ductless mini-split air conditioner is one solution to cooling part of a house. | Photo courtesy of iStockphotoLUke1138. A ductless...

  20. Air Conditioner Regional Standards Brochure | Department of Energy

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

    Air Conditioner Regional Standards Brochure Air Conditioner Regional Standards Brochure November 9, 2015 DOE has adopted energy conservation standards for split-system air conditioners that vary depending on when and where a unit is installed. This brochure provides information about the new standards to distributors, contractors (installers), and consumers. PDF icon Central Air Conditioner Standards Brochure More Documents & Publications 2015-11-12 Proposed Rulemaking Regarding Enforcement

  1. Covered Product Category: Residential Central Air Conditioners

    Broader source: Energy.gov [DOE]

    FEMP provides acquisition guidance across a variety of product categories, including residential central air conditioners (CACs), 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.

  2. Advanced Thin Film Thermoelectric Systems forEfficient Air-Conditioners |

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

    Department of Energy Thin Film Thermoelectric Systems forEfficient Air-Conditioners Advanced Thin Film Thermoelectric Systems forEfficient Air-Conditioners Presents recent advances in thermoelectric device fabrication and the design of novel cooling/heating engines exploiting thermal storage for efficient air-conditioners in automobiles PDF icon ghoshal.pdf More Documents & Publications Sheetak will work on developing a full scale prototype of its low cost heat pump water heater. These

  3. Ductless Mini-Split Air Conditioners | Department of Energy

    Energy Savers [EERE]

    Ductless Mini-Split Air Conditioners Ductless Mini-Split Air Conditioners A ductless mini-split air conditioner is one solution to cooling part of a house. | Photo courtesy of ©iStockphoto/LUke1138. A ductless mini-split air conditioner is one solution to cooling part of a house. | Photo courtesy of ©iStockphoto/LUke1138. Ductless, mini split-system air-conditioners (mini splits) have numerous potential applications in residential, commercial, and institutional buildings. The most common

  4. NREL Solves Residential Window Air Conditioner Performance Limitations...

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

    window air conditioners in a range of climates and conditions at NREL's Advanced Heating, Ventilation, and Air-Conditioning (HVAC) Systems Laboratory. The testing provided unique...

  5. 13 EER Window Air Conditioner

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

    gains in the HXs, single speed compressor, and fan motors with minimal cost barrier ... R410A rotary compressor - minimal air leakage from the evaporator to the ...

  6. Development of vehicle magnetic air conditioner (VMAC) technology. Final

    Office of Scientific and Technical Information (OSTI)

    report (Technical Report) | SciTech Connect Development of vehicle magnetic air conditioner (VMAC) technology. Final report Citation Details In-Document Search Title: Development of vehicle magnetic air conditioner (VMAC) technology. Final report The objective of Phase I was to explore the feasibility of the development of a new solid state refrigeration technology - magnetic refrigeration - in order to reduce power consumption of a vehicle air conditioner by 30%. The feasibility study was

  7. Commercial Air Conditioners and Heat Pumps | Department of Energy

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

    Air Conditioners and Heat Pumps Commercial Air Conditioners and Heat Pumps The Department of Energy (DOE) develops standardized data templates for reporting the results of tests conducted in accordance with current DOE test procedures. Templates may be used by third-party laboratories under contract with DOE that conduct testing in support of ENERGY STAR® verification, DOE rulemakings, and enforcement of the federal energy conservation standards. File Commercial Air Conditioners and Heat Pumps

  8. Covered Product Category: Residential Central Air Conditioners | Department

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

    of Energy Central Air Conditioners Covered Product Category: Residential Central Air Conditioners The Federal Energy Management Program (FEMP) provides acquisition guidance for residential central air conditioners (CACs), 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. Most manufacturers display the ENERGY STAR label

  9. Covered Product Category: Room Air Conditioners | Department of Energy

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

    Room Air Conditioners Covered Product Category: Room Air Conditioners The Federal Energy Management Program (FEMP) provides acquisition guidance for room air conditioners, a product category covered by the ENERGY STAR program. Federal laws and requirements mandate that agencies purchase ENERGY STAR-qualified products in all product categories covered by this program and any acquisition actions that are not specifically exempted by law. MEETING EFFICIENCY REQUIREMENTS FOR FEDERAL PURCHASES The

  10. Covered Product Category: Room Air Conditioners | Department of Energy

    Office of Environmental Management (EM)

    Room Air Conditioners Covered Product Category: Room Air Conditioners The Federal Energy Management Program (FEMP) provides acquisition guidance for room air conditioners, a product category covered by the ENERGY STAR program. Federal laws and requirements mandate that agencies purchase ENERGY STAR-qualified products in all product categories covered by this program and any acquisition actions that are not specifically exempted by law. MEETING EFFICIENCY REQUIREMENTS FOR FEDERAL PURCHASES The

  11. 13-Energy Efficiency Ratio Window Air Conditioner | Department of Energy

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

    -Energy Efficiency Ratio Window Air Conditioner 13-Energy Efficiency Ratio Window Air Conditioner Credit: Oak Ridge National Lab Credit: Oak Ridge National Lab Lead Performer: Oak Ridge National Laboratory - Oak Ridge, TN Partners: General Electric - Fairfield, CT DOE Funding: $1,540,000 Cost Share: Provided by CRADA partners Project Term: 10/1/2011 - 9/30/2015 Project Objective This project is designing and developing a high-efficiency 13 energy-efficiecy-ratio (EER) window air conditioner. The

  12. Understanding Energy Impacts of Oversized Air Conditioners (Fact...

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

    magnitudes of the various effects. In this study, researchers from the National Renewable Energy Laboratory (NREL) evaluated the replacement of an air conditioner in a...

  13. 2015-02-12 Issuance: Test Procedures for Portable Air Conditioners...

    Office of Environmental Management (EM)

    2 Issuance: Test Procedures for Portable Air Conditioners; Notice of Proposed Rulemaking 2015-02-12 Issuance: Test Procedures for Portable Air Conditioners; Notice of Proposed ...

  14. Establish the Commercial Pacakge Air Conditioners and Commercial...

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

    commercial package air conditioners, heat pumps, and commercial warm air furnaces is an action issued by the Department of Energy. Though it is not intended or expected, should any...

  15. ISSUANCE 2015-05-01: Commercial Package Air Conditioners and Commercial Warm Air Furnaces Working Group; Notice of Open Meetings

    Broader source: Energy.gov [DOE]

    Commercial Package Air Conditioners and Commercial Warm Air Furnaces Working Group; Notice of Open Meetings

  16. High efficiency novel window air conditioner

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Bansal, Pradeep

    2015-07-24

    This paper presents the technical development of a high efficiency window air conditioner. In order to achieve higher energy efficiency ratio (EER), the original capacity of the R410A unit was downgraded by replacing the original compressor with a lower capacity but higher EER compressor, while all heat exchangers and the chassis from the original unit were retained. The other subsequent major modifications included – the AC fan motor being replaced with a brushless high efficiency electronically commuted motor (ECM) motor, the capillary tube being replaced with a needle valve to better control the refrigerant flow and refrigerant set points, andmore »R410A being replaced with drop-in environmentally friendly binary mixture of R32 (85% molar concentration)/R125 (15% molar concentration). All these modifications resulted in significant EER enhancement of the modified unit.« less

  17. High efficiency novel window air conditioner

    SciTech Connect (OSTI)

    Bansal, Pradeep

    2015-07-24

    This paper presents the technical development of a high efficiency window air conditioner. In order to achieve higher energy efficiency ratio (EER), the original capacity of the R410A unit was downgraded by replacing the original compressor with a lower capacity but higher EER compressor, while all heat exchangers and the chassis from the original unit were retained. The other subsequent major modifications included the AC fan motor being replaced with a brushless high efficiency electronically commuted motor (ECM) motor, the capillary tube being replaced with a needle valve to better control the refrigerant flow and refrigerant set points, and R410A being replaced with drop-in environmentally friendly binary mixture of R32 (85% molar concentration)/R125 (15% molar concentration). All these modifications resulted in significant EER enhancement of the modified unit.

  18. Electrolux Gibson Air Conditioner and Equator Clothes Washer...

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

    ENERGY STAR program has revealed that an Electrolux Gibson air conditioner (model GAH105Q2T1) and an Equator clothes washer (model EZ 3720 CEE), both of which claimed ENERGY STAR...

  19. Four Central Air Conditioners Determined Noncompliant With Energy...

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

    (Notice) on September 27, 2011, to AeroSys, Inc. (AeroSys) regarding four models of central (through-the-wall) air conditioners that fail to meet Federal energy...

  20. Improving Air-Conditioner and Heat Pump Modeling

    SciTech Connect (OSTI)

    Winkler, Jon

    2012-03-02

    This presentation describes a new approach to modeling residential air conditioners and heat pumps, which allows users to model systems by specifying only the more readily-available SEER/EER/HSPF-type metrics. Manufacturer data was used to generate full sets of model inputs for over 450 heat pumps and air conditioners. A sensitivity analysis identified which inputs can be safely defaulted behind-the-scenes without negatively impacting the reliability of energy simulations.

  1. Improving Air-Conditioner and Heat Pump Modeling (Presentation)

    SciTech Connect (OSTI)

    Winkler, J.

    2012-03-01

    A new approach to modeling residential air conditioners and heat pumps allows users to model systems by specifying only the more readily-available SEER/EER/HSPF-type metrics. Manufacturer data was used to generate full sets of model inputs for over 450 heat pumps and air conditioners. A sensitivity analysis identified which inputs can be safely defaulted 'behind-the-scenes' without negatively impacting the reliability of energy simulations.

  2. High-Efficiency Rooftop Air Conditioners: Innovative Procurement to Achieve

    Office of Scientific and Technical Information (OSTI)

    Advances in Technology (Journal Article) | SciTech Connect Journal Article: High-Efficiency Rooftop Air Conditioners: Innovative Procurement to Achieve Advances in Technology Citation Details In-Document Search Title: High-Efficiency Rooftop Air Conditioners: Innovative Procurement to Achieve Advances in Technology The U.S. Department of Energy, Defense Logistics Agency, and Pacific Northwest National Laboratory recently conducted a technology procurement to increase the availability of

  3. Variable Speed Fan Retrofits for Computer Room Air Conditioners |

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

    Department of Energy Variable Speed Fan Retrofits for Computer Room Air Conditioners Variable Speed Fan Retrofits for Computer Room Air Conditioners Case study describes various concepts for more cost-effective cooling solutions in data centers, while keeping in mind that the reliability of computing systems and their respective cooling systems is always a key criterion. PDF icon dc_fancasestudy.pdf More Documents & Publications Wireless Sensors Improve Data Center Efficiency NSIDC Data

  4. Novel Solid State Magnetocaloric Air Conditioner | Department of Energy

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

    Solid State Magnetocaloric Air Conditioner Novel Solid State Magnetocaloric Air Conditioner Lead Performer: Oak Ridge National Laboratory, Oak Ridge, TN Partners: Vaccumschmelze GmbH & Co. KG., Hanau, Germany DOE Total Funding: $1,360,000 Cost Share: $340,000 Project Term: 09/01/2015 - 08/31/2017 Funding Opportunity: Building Energy Efficiency Frontiers and Innovation Technologies (BENEFIT) - 2015 PROJECT OBJECTIVE Current magnetocaloric cooling/heating prototypes employ a heat transfer

  5. Natural Gas Heat Pump and Air Conditioner | Department of Energy

    Energy Savers [EERE]

    Natural Gas Heat Pump and Air Conditioner Natural Gas Heat Pump and Air Conditioner Lead Performer: Thermolift - Stony Brook, NY Partners: -- New York State Energy Research & Development Authority - Albany, NY -- Stony Brook University - Stony Brook, NY -- Oak Ridge National Laboratory - Oak Ridge, TN -- National Grid - Washington, DC -- Applied Thermodynamic Apparatus (ATA) - Ann Arbor, MI -- Fala Technologies - Kingston, NY -- LoDolce - Saugerties, NY DOE Funding: $750,000 Cost Share:

  6. Enforcement Policy Statement: Off Mode Standards for Central Air Conditioners

    Office of Environmental Management (EM)

    Policy Statement: Off Mode Standards for Central Air Conditioners and Central Air Conditioning Heat Pumps July 8, 2014 On June 27, 2011, the Department of Energy (DOE) published in the Federal Register a direct final rule (DFR) under the Energy Policy and Conservation Act (EPCA), 42 U.S.C. §§ 6291-6309, which set forth amended energy conservation standards for central air conditioners and central air conditioning heat pumps (CAC/HP), including a new standard for off mode electrical power

  7. Building America Top Innovations 2013 Profile … High-Efficiency Window Air Conditioners

    Energy Savers [EERE]

    Comprehensive performance tests lead to affordable methods for increasing the energy efficiency of window air conditioners. Window air conditioners are an inexpensive, portable form of spot cooling, making them a good solution for supplemental cooling, for air conditioning in homes that lack ductwork, and for renters. As a result, 7.5 million window air conditioners are purchased each year in the United States-more than all other home cooling equipment combined. However, window air conditioners

  8. DOE Reaches $1.5M Settlement with Room Air Conditioner Manufacturer |

    Energy Savers [EERE]

    Department of Energy $1.5M Settlement with Room Air Conditioner Manufacturer DOE Reaches $1.5M Settlement with Room Air Conditioner Manufacturer October 27, 2015 - 5:48pm Addthis The General Counsel's enforcement office settled an enforcement action against Friedrich Air Conditioning Company for $1,494,626.25, for the distribution of room air conditioners that failed to meet federal minimum standards for energy efficiency. Room air conditioners must meet minimum efficiency standards to be

  9. DOE Orders AeroSys to Halt Distribution of Inefficient Air Conditioner...

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

    Orders AeroSys to Halt Distribution of Inefficient Air Conditioner and Heat Pump Models DOE Orders AeroSys to Halt Distribution of Inefficient Air Conditioner and Heat Pump Models ...

  10. Laboratory Performance Testing of Residential Window Air Conditioners

    SciTech Connect (OSTI)

    Winkler, J.; Booten, C.; Christensen, D.; Tomerlin, J.

    2013-03-01

    Window air conditioners are the dominant cooling product for residences, in terms of annual unit sales. They are inexpensive, portable and can be installed by the owner. For this reason, they are an attractive solution for supplemental cooling, for retrofitting air conditioning into a home which lacks ductwork, and for renters. Window air conditioners for sale in the United States are required to meet very modest minimum efficiency standards. Four window air conditioners' performance were tested in the Advanced HVAC Systems Laboratory on NREL's campus in Golden, CO. In order to separate and study the refrigerant system's performance, the unit's internal leakage pathways, the unit's fanforced ventilation, and the leakage around the unit resulting from installation in a window, a series of tests were devised that focused on each aspect of the unit's performance. These tests were designed to develop a detailed performance map to determine whole-house performance in different climates. Even though the test regimen deviated thoroughly from the industry-standard ratings test, the results permit simple calculation of an estimated rating for both capacity and efficiency that would result from a standard ratings test. Using this calculation method, it was found that the three new air conditioners' measured performance was consistent with their ratings. This method also permits calculation of equivalent SEER for the test articles. Performance datasets were developed across a broad range of indoor and outdoor operating conditions, and used them to generate performance maps.

  11. Purchasing Energy-Efficient Residential Central Air Conditioners

    Broader source: Energy.gov [DOE]

    FEMP provides acquisition guidance for residential central air conditioners, a product category covered by ENERGY STAR. Federal laws and requirements mandate that agencies purchase ENERGY STAR-qualified products or FEMP-designated products in all product categories covered by these programs and in any acquisition actions that are not specifically exempted by law.

  12. DOE Takes Action to Stop the Sales of Air-Con Air Conditioner Models Shown

    Energy Savers [EERE]

    to Violate Federal Energy Efficiency Appliance Standards | Department of Energy Action to Stop the Sales of Air-Con Air Conditioner Models Shown to Violate Federal Energy Efficiency Appliance Standards DOE Takes Action to Stop the Sales of Air-Con Air Conditioner Models Shown to Violate Federal Energy Efficiency Appliance Standards September 23, 2010 - 12:00am Addthis Washington, DC - The Department of Energy announced today that it has taken action against Air-Con, International, requiring

  13. ISSUANCE 2015-11-19: Energy Conservation Program: Test Procedures for Portable Air Conditioners; Supplemental Notice of Proposed Rulemaking

    Broader source: Energy.gov [DOE]

    Energy Conservation Program: Test Procedures for Portable Air Conditioners; Supplemental Notice of Proposed Rulemaking

  14. ISSUANCE 2015-08-21: Energy Conservation Standards for Central Air Conditioners and Heat Pumps: Notice of Data Availability

    Broader source: Energy.gov [DOE]

    Energy Conservation Standards for Central Air Conditioners and Heat Pumps: Notice of Data Availability

  15. ISSUANCE 2015-06-09: Energy Conservation Program: Energy Conservation Standards for Room Air Conditioners; Request for Information

    Broader source: Energy.gov [DOE]

    Energy Conservation Program: Energy Conservation Standards for Room Air Conditioners; Request for Information

  16. Analysis of Environmentally Friendly Refrigerant Options for Window Air Conditioners

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Bansal, Pradeep; Shen, Bo

    2015-03-12

    This paper presents a technical assessment of environmentally friendly refrigerants as alternatives to R410A for window air conditioners. The alternative refrigerants that are studied for its replacement include R32, a mixture of R32/R125 with 90%/10% molar concentration, R600a, R290, R1234yf, R1234ze and R134a. Baseline experiments were performed on a window unit charged with R410A. The heat pump design model (HPDM) was modified and calibrated with the baseline data and was used to evaluate the comparative performance of the WAC with alternative refrigerants. The paper discusses the advantages and disadvantages of each refrigerants and their suitability for window air conditioners. Amongmore » all the refrigerants studied, R32 offers the best efficiency and the lowest Global Warming Potential (GWP), and hence its use will result in the overall environmental friendliness.« less

  17. Analysis of Environmentally Friendly Refrigerant Options for Window Air Conditioners

    SciTech Connect (OSTI)

    Bansal, Pradeep; Shen, Bo

    2015-01-01

    This paper presents a technical assessment of environmentally friendly refrigerants as alternatives to R410A for window air conditioners. The alternative refrigerants that are studied for its replacement include R32, a mixture of R32/R125 with 90%/10% molar concentration, R600a, R290, R1234yf, R1234ze and R134a. Baseline experiments were performed on a window unit charged with R410A. The heat pump design model (HPDM) was modified and calibrated with the baseline data and was used to evaluate the comparative performance of the WAC with alternative refrigerants. The paper discusses the advantages and disadvantages of each refrigerants and their suitability for window air conditioners. Among all the refrigerants studied, R32 offers the best efficiency and the lowest Global Warming Potential (GWP), and hence its use will result in the overall environmental friendliness.

  18. Assessment of Environmentally Friendly Refrigerants for Window Air Conditioners

    SciTech Connect (OSTI)

    Bansal, Pradeep; Shen, Bo

    2014-01-01

    This paper presents technical assessment of environmentally friendly refrigerants for window air conditioners that currently use refrigerant R410A for residential and commercial applications. The alternative refrigerants that are studied for its replacement include R32, R600a, R290, R1234yf, R1234ze and a mixture of R32 (90% molar concentration) and R125 (10% molar concentration). Baseline experiments were performed on a window unit charged with R410A. The ORNL Heat Pump Design Model was calibrated with the baseline data and was used to assess the comparative performance of the WAC with alternative refrigerants. The paper discusses the advantages and disadvantages of each refrigerants and their suitability for window air conditioners.

  19. Enforcement Policy: Split-System Central Air Conditioners Without HSVC

    Broader source: Energy.gov [DOE]

    DOE issued an enforcement policy that it would begin investigating the methods manufacturers are using to rate split-system central air conditioners that do not have a highest sales volume combination (HSVC) to test as required by the applicable regulations and that it would assess penalties for units manufactured after February 1, 2016, that have not been tested and properly certified as compliant with the applicable standards.

  20. Variable Speed Fan Retrofits for Computer Room Air Conditioners

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

    Variable-Speed Fan Retrofits for Computer-Room Air Conditioners Prepared for the U.S. Department of Energy Federal Energy Management Program Technology Case Study Bulletin By Lawrence Berkeley National Laboratory Steve Greenberg September 2013 2 Contacts Steve Greenberg Lawrence Berkeley National Laboratory One Cyclotron Road, 90R3111 Berkeley, California 94720 (510) 486-6971 segreenberg@lbl.gov For more information on FEMP, please contact: Will Lintner, P.E., CEM Federal Energy Management

  1. Development and Analysis of Desiccant Enhanced Evaporative Air Conditioner Prototype

    SciTech Connect (OSTI)

    Kozubal, E.; Woods, J.; Judkoff, R.

    2012-04-01

    This report documents the design of a desiccant enhanced evaporative air conditioner (DEVAP AC) prototype and the testing to prove its performance. Previous numerical modeling and building energy simulations indicate a DEVAP AC can save significant energy compared to a conventional vapor compression AC (Kozubal et al. 2011). The purposes of this research were to build DEVAP prototypes, test them to validate the numerical model, and identify potential commercialization barriers.

  2. Enforcement Policy Statement: Split-System Central Air Conditioners Without HSVC

    Office of Environmental Management (EM)

    Split-System Central Air Conditioners Without HSVC December 16, 2015 In the November 9, 2015 central air conditioner test procedure supplemental notice of proposed rulemaking (80 FR 69278), DOE explained that it had been using its enforcement discretion not to seek civil penalties for split-system central air conditioners that were in distribution in commerce but had not been tested in accordance with the DOE test procedure. Although the issue can arise in other contexts, the majority of these

  3. Five ENERGY STAR Room Air Conditioners Fail Testing | Department of Energy

    Office of Environmental Management (EM)

    Five ENERGY STAR Room Air Conditioners Fail Testing Five ENERGY STAR Room Air Conditioners Fail Testing August 22, 2011 - 2:00pm Addthis The U.S. Department of Energy's Office of Enforcement announced today that DOE testing has identified five Friedrich room air conditioners that do not meet the ENERGY STAR Program's energy efficiency requirements. DOE selected these models for testing as part of its ENERGY STAR Verification Testing Pilot Program. DOE tests revealed that ENERGY STAR-rated

  4. EERE Success Story—DOE Industry Partnerships Lead to Widespread Adoption of Efficient Commercial Air Conditioners

    Broader source: Energy.gov [DOE]

    Commercial air conditioners, often referred to as rooftop units (RTUs), are commonly used across commercial building sectors such as schools, restaurants, big box retailers, and small office...

  5. DOE Industry Partnerships Lead to Widespread Adoption of Efficient Commercial Air Conditioners

    Broader source: Energy.gov [DOE]

    Commercial air conditioners, often referred to as rooftop units (RTUs), are commonly used across commercial building sectors such as schools, restaurants, big box retailers, and small office...

  6. FINAL REPORT DEVELOPMENT OF VEHICLE MAGNETIC AIR CONDITIONER (VMAC) TECHNOLOGY

    Office of Scientific and Technical Information (OSTI)

    FINAL REPORT ' DEVELOPMENT OF VEHICLE MAGNETIC AIR CONDITIONER (VMAC) TECHNOLOGY Karl A. Gschneidner, Jr., V. K. Pecharsky and David Jiles Institute for Physical Research and Technology Iowa State University Ames, Iowa 500 1 1-3020 . and Carl B. Zimm Astronautics Corporation of America Astronautics Technology Center 5802 Cottage Grove Rd Madison Wi 53718-1387 \ DOE Contract No.: DE-FC02-98 EE 50549 DOE Patent Clearance Granted ~ 9 m u u l c Mark P Dvorscak E-mail rnark.dvorscak@ch.doe Office ot

  7. Development and Analysis of Desiccant Enhanced Evaporative Air Conditioner Prototype

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

    Development and Analysis of Desiccant Enhanced Evaporative Air Conditioner Prototype Eric Kozubal, Jason Woods, and Ron Judkoff Technical Report NREL/TP-5500-54755 April 2012 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 15013 Denver West Parkway Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308

  8. Technical support document: Energy efficiency standards for consumer products: Room air conditioners, water heaters, direct heating equipment, mobile home furnaces, kitchen ranges and ovens, pool heaters, fluorescent lamp ballasts and television sets. Volume 1, Methodology

    SciTech Connect (OSTI)

    Not Available

    1993-11-01

    The Energy Policy and Conservation Act (P.L. 94-163), as amended, establishes energy conservation standards for 12 of the 13 types of consumer products specifically covered by the Act. The legislation requires the Department of Energy (DOE) to consider new or amended standards for these and other types of products at specified times. DOE is currently considering amending standards for seven types of products: water heaters, direct heating equipment, mobile home furnaces, pool heaters, room air conditioners, kitchen ranges and ovens (including microwave ovens), and fluorescent light ballasts and is considering establishing standards for television sets. This Technical Support Document presents the methodology, data, and results from the analysis of the energy and economic impacts of the proposed standards. This volume presents a general description of the analytic approach, including the structure of the major models.

  9. DOE Orders AeroSys to Halt Distribution of Inefficient Air Conditioner and

    Office of Environmental Management (EM)

    Heat Pump Models | Department of Energy Orders AeroSys to Halt Distribution of Inefficient Air Conditioner and Heat Pump Models DOE Orders AeroSys to Halt Distribution of Inefficient Air Conditioner and Heat Pump Models March 30, 2010 - 10:05am Addthis Today, the Department of Energy announced that it is requiring AeroSys, Inc. to stop distributing two product models - one air conditioner and one heat pump - that DOE testing found to consume more energy than allowed under federal efficiency

  10. Improved Modeling of Residential Air Conditioners and Heat Pumps for Energy Calculations

    SciTech Connect (OSTI)

    Cutler, D.; Winkler, J.; Kruis, N.; Christensen, C.; Brendemuehl, M.

    2013-01-01

    This report presents improved air conditioner and heat pump modeling methods in the context of whole-building simulation tools, with the goal of enabling more accurate evaluation of cost effective equipment upgrade opportunities and efficiency improvements in residential buildings.

  11. Understanding Energy Impacts of Oversized Air Conditioners; NREL Highlights, Research & Development, NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    2015-06-01

    This NREL highlight describes a simulation-based study that analyzes the energy impacts of oversized residential air conditioners. Researchers found that, if parasitic power losses are minimal, there is very little increase in energy use for oversizing an air conditioner. The research demonstrates that new residential air conditioners can be sized primarily based on comfort considerations, because capacity typically has minimal impact on energy efficiency. The results of this research can be useful for contractors and homeowners when choosing a new air conditioner or heat pump during retrofits of existing homes. If the selected unit has a crankcase heater, performing proper load calculations to be sure the new unit is not oversized will help avoid excessive energy use.

  12. Electrolux Gibson Air Conditioner and Equator Clothes Washer Fail DOE Energy Star Testing

    Broader source: Energy.gov [DOE]

    DOE testing in support of the ENERGY STAR program has revealed that an Electrolux Gibson air conditioner (model GAH105Q2T1) and an Equator clothes washer (model EZ 3720 CEE), both of which claimed...

  13. DOE Orders AeroSys to Halt Distribution of Inefficient Air Conditioner...

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

    AeroSys to Halt Distribution of Inefficient Air Conditioner and Heat Pump Models Shown to Violate Minimum Efficiency Standards DOE Orders AeroSys to Halt Distribution of ...

  14. Building America Top Innovations 2013 Profile High-Efficiency Window Air Conditioners

    SciTech Connect (OSTI)

    none,

    2013-09-01

    This Top Innovation profile explains how comprehensive performance testing by the National Renewable Energy Laboratory led to simple, affordable methods that homeowners could employ for increasing the energy efficiency of window air conditioners.

  15. DOE Orders AeroSys to Halt Distribution of Inefficient Air Conditioner and

    Energy Savers [EERE]

    Heat Pump Models Shown to Violate Minimum Efficiency Standards | Department of Energy AeroSys to Halt Distribution of Inefficient Air Conditioner and Heat Pump Models Shown to Violate Minimum Efficiency Standards DOE Orders AeroSys to Halt Distribution of Inefficient Air Conditioner and Heat Pump Models Shown to Violate Minimum Efficiency Standards March 30, 2010 - 12:00am Addthis WASHINGTON, DC - Today, the Department of Energy announced that it is requiring AeroSys, Inc. to stop

  16. DOE Requires Manufacturers to Halt Sales of Heat Pumps and Air Conditioners

    Energy Savers [EERE]

    Violating Minimum Appliance Standards | Department of Energy Requires Manufacturers to Halt Sales of Heat Pumps and Air Conditioners Violating Minimum Appliance Standards DOE Requires Manufacturers to Halt Sales of Heat Pumps and Air Conditioners Violating Minimum Appliance Standards June 3, 2010 - 12:00am Addthis Washington, DC - Today, the Department of Energy announced that three manufacturers -- Aspen Manufacturing, Inc., Summit Manufacturing, and Advanced Distributor Products -- must

  17. YMGI Through-the-Wall Air Conditioner Determined Noncompliant With Energy

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

    Efficiency Standard | Department of Energy U.S. Department of Energy's Office of Enforcement issued a Notice of Noncompliance Determination (Notice) on October 11, 2012, to YMGI Group, LLC (YMGI) regarding through-the-wall split system central air conditioner basic model TTWC-18K-31B. DOE enforcement testing revealed that this model operates at a Seasonal Energy Efficiency Rating (SEER) of 8.3. The current federal standard requires that through-the-wall split system central air conditioners

  18. DOE Requires Manufacturers to Halt Sales of Heat Pumps and Air Conditioners

    Office of Environmental Management (EM)

    Violating Minimum Appliance Standards | Department of Energy Manufacturers to Halt Sales of Heat Pumps and Air Conditioners Violating Minimum Appliance Standards DOE Requires Manufacturers to Halt Sales of Heat Pumps and Air Conditioners Violating Minimum Appliance Standards June 3, 2010 - 2:17pm Addthis Today, the Department of Energy announced that three manufacturers -- Aspen Manufacturing, Inc., Summit Manufacturing, and Advanced Distributor Products -- must stop distributing 61 heat

  19. YMGI Through-the-Wall Air Conditioner Determined Noncompliant...

    Energy Savers [EERE]

    Conditioner Determined Noncompliant With Energy Efficiency Standard October 11, 2012 - 4:10pm Addthis The U.S. Department of Energy's Office of Enforcement issued a Notice of...

  20. Swozzle based burner tube premixer including inlet air conditioner for low emissions combustion

    DOE Patents [OSTI]

    Tuthill, Richard Sterling (Bolton, CT); Bechtel, II, William Theodore (Scotia, NY); Benoit, Jeffrey Arthur (Scotia, NY); Black, Stephen Hugh (Duanesburg, NY); Bland, Robert James (Clifton Park, NY); DeLeonardo, Guy Wayne (Scotia, NY); Meyer, Stefan Martin (Troy, NY); Taura, Joseph Charles (Clifton Park, NY); Battaglioli, John Luigi (Glenville, NY)

    2002-01-01

    A burner for use in a combustion system of a heavy-duty industrial gas turbine includes a fuel/air premixer having an air inlet, a fuel inlet, and an annular mixing passage. The fuel/air premixer mixes fuel and air into a uniform mixture for injection into a combustor reaction zone. The burner also includes an inlet flow conditioner disposed at the air inlet of the fuel/air premixer for controlling a radial and circumferential distribution of incoming air. The pattern of perforations in the inlet flow conditioner is designed such that a uniform air flow distribution is produced at the swirler inlet annulus in both the radial and circumference directions. The premixer includes a swozzle assembly having a series of preferably air foil shaped turning vanes that impart swirl to the airflow entering via the inlet flow conditioner. Each air foil contains internal fuel flow passages that introduce natural gas fuel into the air stream via fuel metering holes that pass through the walls of the air foil shaped turning vanes. By injecting fuel in this manner, an aerodynamically clean flow field is maintained throughout the premixer. By injecting fuel via two separate passages, the fuel/air mixture strength distribution can be controlled in the radial direction to obtain optimum radial concentration profiles for control of emissions, lean blow outs, and combustion driven dynamic pressure activity as machine and combustor load are varied.

  1. Save Money and Stay Cool with an Efficient, Well-Maintained Air Conditioner

    Energy Savers [EERE]

    | Department of Energy Money and Stay Cool with an Efficient, Well-Maintained Air Conditioner Save Money and Stay Cool with an Efficient, Well-Maintained Air Conditioner June 29, 2010 - 7:30am Addthis Eric Barendsen Energy Technology Program Specialist, Office of Energy Efficiency and Renewable Energy OK. It's officially summer here in Washington, D.C. I'm seeking the coolest, shadiest places possible as I get ready for the hottest few months of the year. It's already been a hot June in much

  2. Tips for Running an Air Conditioner Without Breaking the Bank | Department

    Energy Savers [EERE]

    of Energy for Running an Air Conditioner Without Breaking the Bank Tips for Running an Air Conditioner Without Breaking the Bank July 22, 2014 - 3:15pm Addthis Cooling your home doesn't have to break the bank, with these tips you can save money and stay comfortable.| Photo courtesy of ©iStockphoto.com/galinast Cooling your home doesn't have to break the bank, with these tips you can save money and stay comfortable.| Photo courtesy of ©iStockphoto.com/galinast Elizabeth Spencer

  3. ISSUANCE 2015-07-17: Energy Conservation Program: Energy Conservation Standards for Room Air Conditioners; Request for Information, Extension of the Public Comment Period

    Broader source: Energy.gov [DOE]

    Energy Conservation Program: Energy Conservation Standards for Room Air Conditioners; Request for Information, Extension of the Public Comment Period

  4. 2014-10-30 Issuance: Energy Conservation Program: Energy Conservation Standards for Residential Central Air Conditioners and Heat Pumps, Request for Information

    Broader source: Energy.gov [DOE]

    Energy Conservation Program: Energy Conservation Standards for Residential Central Air Conditioners and Heat Pumps, Request for Information

  5. ISSUANCE 2015-06-08: Energy Conservation Program: Test Procedures for Packaged Terminal Air Conditioners and Packaged Terminal Heat Pumps, Final Rule

    Broader source: Energy.gov [DOE]

    Energy Conservation Program: Test Procedures for Packaged Terminal Air Conditioners and Packaged Terminal Heat Pumps, Final Rule

  6. ISSUANCE 2015-06-30: Energy Conservation Program: Energy Conservation Standards for Packaged Terminal Air Conditioners and Packaged Terminal Heat Pumps, Final Rule

    Broader source: Energy.gov [DOE]

    Energy Conservation Program: Energy Conservation Standards for Packaged Terminal Air Conditioners and Packaged Terminal Heat Pumps, Final Rule

  7. Improved Modeling of Residential Air Conditioners and Heat Pumps for Energy Calculations

    SciTech Connect (OSTI)

    Cutler, D.; Winkler, J.; Kruis, N.; Christensen, C.; Brandemuehl, M.

    2013-01-01

    This report presents improved air conditioner and heat pump modeling methods in the context of whole-building simulation tools, with the goal of enabling more accurate evaluation of cost-effective equipment upgrade opportunities and efficiency improvements in residential buildings.

  8. Technical and economic analysis of energy efficiency of Chinese room air conditioners

    SciTech Connect (OSTI)

    Fridley, David G.; Rosenquist, Gregory; Jiang, Lin; Li, Aixian; Xin, Dingguo; Cheng, Jianhong

    2001-02-01

    China has experienced tremendous growth in the production and sales of room air conditioners over the last decade. Although minimum room air conditioner energy efficiency standards have been in effect since 1989, no efforts were made during most of the 1990's to update the standard to be more reflective of current market conditions. In 1999, China's State Bureau of Technical Supervision (SBTS) included in their annual plan the development and revision of the 1989 room air conditioner standard, and experts from SBTS worked together with LBNL to analyze the new standards. Based on the engineering and life cycle-cost analyses performed, the most predominant type of room air conditioner in the Chinese market (split-type with a cooling capacity between 2500 and 4500 W (8500 Btu/h and 15,300Btu/h)) can have its efficiency increased cost-effectively to an energy efficiency ratio (EER) of 2.92 W/W (9.9 Btu/hr/W). If an EER standard of 2.92 W/W became effective in 2001, Chinese consumers would be estimated to save over 3.5 billion Yuan (420 million U.S. dollars) over the period of 2001-2020. Carbon emissions over the same period would be reduced by approximately 12 million metric tonnes.

  9. NREL Demonstrates Game-Changing Air Conditioner Technology (Fact...

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

    compared to vapor compression air condition- ers, DEVAP's novel design improves air quality by independently controlling temperature and humidity and increasing ventilation....

  10. Ex Parte Communication on Central Air-Conditioner Test Procedure

    Broader source: Energy.gov [DOE]

    On September 18, 2015, AHRI staff and Manufacturing Representatives met with representatives from the Department of Energy (DOE) to discuss proposed amended test procedures for central air...

  11. 13 SEER Standard for Central Air Conditioners and Heat Pumps (released in AEO2005)

    Reports and Publications (EIA)

    2005-01-01

    In January 2004, after years of litigation in a case that pitted environmental groups and Attorneys General from 10 states against the U.S. Secretary of Energy, the U.S. Court of Appeals for the Second Circuit reestablished the central air conditioner and heat pump standard originally set in January 200. The Courts ruling, which struck down a May 2002 rollback of the 2001 standard to a 12 Seasonal Energy Efficiency Ratio (SEER) mandates that all new central air conditioners and heat pumps meet a 13 SEER standard by January 2006, requiring a 30% increase in efficiency relative to current law. The Annual Energy Outlook 2005 reference case incorporates the 13 SEER standard as mandated by the Courts ruling.

  12. Energy Impacts of Oversized Residential Air Conditioners Simulation Study of Retrofit Sequence Impacts

    SciTech Connect (OSTI)

    Booten, C.; Christensen, C.; Winkler, J.

    2014-11-01

    This research addresses the question of what are the energy consequences for oversizing of an air conditioner in a home, which can result in significant energy penalties. However, the reason for this was due to crankcase heaters and not due to cycling performance of the AC, and is only valid for a particular set of assumptions. Adding or removing individual characteristics, such as ducts or crankcase heaters, can have measurable impacts on energy use. However, with all other home characteristics held constant, oversizing the AC generally has a small effect on cooling energy use, even if the cycling performance of the unit is poor. The relevant aspects of air conditioner modeling are discussed to illustrate the effects of the cycling loss coefficient, Cd, capacity, climate, ducts and parasitic losses such as crankcase heaters.

  13. Zero Carryover Liquid-Desiccant Air Conditioner for Solar Applications: Preprint

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

    A Zero Carryover Liquid-Desiccant Air Conditioner for Solar Applications Preprint A. Lowenstein AIL Research, Inc. S. Slayzak and E. Kozubal National Renewable Energy Laboratory To be presented at ASME International Solar Energy Conference (ISEC2006) Denver, Colorado July 8-13, 2006 Conference Paper NREL/CP-550-39798 July 2006 NOTICE The submitted manuscript has been offered by an employee of the Midwest Research Institute (MRI), a contractor of the US Government under Contract No.

  14. Stirling Air Conditioner for Compact Cooling (Program Document...

    Office of Scientific and Technical Information (OSTI)

    The Stirling cycle system is a type of air conditioning system that uses a motor with a piston to remove heat to the outside atmosphere using a gas refrigerant. To...

  15. Measure Guideline: Air Conditioner Diagnostics, Maintenance, and Replacement

    SciTech Connect (OSTI)

    Springer, D.; Dakin, B.

    2013-03-01

    This guideline responds to the need for an efficient means of identifying, diagnosing, and repairing faults in air conditioning systems in existing homes that are undergoing energy upgrades. Inadequate airflow due to constricted ducts or undersized filters, improper refrigerant charge, and other system defects can be corrected at a fraction of the cost of equipment replacement and can yield significant savings. The guideline presents a two-step approach to diagnostics and repair.

  16. Air Sample Conditioner Helps the Waste Treatment Plant Meet Emissions Standards

    SciTech Connect (OSTI)

    Glissmeyer, John A.; Flaherty, Julia E.; Pekour, Mikhail S.

    2014-12-02

    The air in three of the Hanford Site Waste Treatment and Immobilization Plant (WTP) melter off-gas discharge stacks will be hot and humid after passing through the train of emission abatement equipment. The off-gas temperature and humidity levels will be incompatible with the airborne emissions monitoring equipment required for this type of stack. To facilitate sampling from these facilities, an air sample conditioner system will be installed to introduce cool, dry air into the sample stream to reduce the temperature and dew point. This will avoid thermal damage to the instrumentation and problematic condensation. The complete sample transport system must also deliver at least 50% of the particles in the sample airstream to the sample collection and on-line analysis equipment. The primary components of the sample conditioning system were tested in a laboratory setting. The sample conditioner itself is based on a commercially-available porous tube filter design. It consists of a porous sintered metal tube inside a coaxial metal jacket. The hot gas sample stream passes axially through the porous tube, and the dry, cool air is injected into the jacket and through the porous wall of the inner tube, creating an effective sample diluter. The dilution and sample air mix along the entire length of the porous tube, thereby simultaneously reducing the dew point and temperature of the mixed sample stream. Furthermore, because the dilution air enters through the porous tube wall, the sample stream does not come in contact with the porous wall and particle deposition is reduced in this part of the sampling system. Tests were performed with an environmental chamber to supply air with the temperature and humidity needed to simulate the off-gas conditions. Air from the chamber was passed through the conditioning system to test its ability to reduce the temperature and dew point of the sample stream. To measure particle deposition, oil droplets in the range of 9 to 11 micrometer aerodynamic diameter were injected into the environmental chamber and drawn through the conditioning system, which included a filter to capture droplets that passed through the conditioner. The droplets were tagged with a fluorescent dye which allowed quantification of droplet deposition on each component of the system. The tests demonstrated the required reductions in temperature and moisture, with no condensation forming when heat tracing was added on the upstream end of the sample conditioner. Additionally, tests indicated that the system, operating at several flow rates and in both vertical and horizontal orientations, delivers nearly all of the sampled particles for analysis. Typical aerosol penetration values were between 98 and 99%. PNNL, Bechtel National Inc., and the instrument vendor are working to implement the sample conditioner into the air monitoring systems used for the melter off-gas exhaust streams. Similar technology may be useful for processes in other facilities with air exhaust streams with elevated temperature and/or humidity.

  17. 2015-02-12 Issuance: Test Procedures for Portable Air Conditioners; Notice of Proposed Rulemaking

    Broader source: Energy.gov [DOE]

    This document is a pre-publication Federal Register notice of proposed rulemaking regarding test procedures for portable air conditioners, as issued by the Deputy Assistant Secretary for Energy Efficiency on February 12, 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.

  18. 2014-05-05 Issuance: Test Procedure for Portable Air Conditioners; Notice of Data Availability

    Broader source: Energy.gov [DOE]

    This document is a pre-publication Federal Register notice of data availabilty regarding test procedures for portable air conditioners, as issued by the Deputy Assistant Secretary for Energy Efficiency on May 5, 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.

  19. Energy Impacts of Oversized Residential Air Conditioners -- Simulation Study of Retrofit Sequence Impacts

    SciTech Connect (OSTI)

    Booten, C.; Christensen, C.; Winkler, J.

    2014-11-01

    This research addresses the question of what are the energy consequences for oversizing of an air conditioner in a home. Conventional wisdom holds that oversizing the AC results in significant energy penalties. However, the reason for this was shown to be due to crankcase heaters and not due to cycling performance of the AC, and is only valid for a particular set of assumptions. Adding or removing individual characteristics, such as ducts or crankcase heaters, can have measurable impacts on energy use. However, with all other home characteristics held constant, oversizing the AC generally has a small effect on cooling energy use, even if the cycling performance of the unit is poor. The relevant aspects of air conditioner modeling are discussed to illustrate the effects of the cycling loss coefficient, Cd, capacity, climate, ducts and parasitic losses such as crankcase heaters. A case study of a typical 1960's vintage home demonstrates results in the context of whole building simulations using EnergyPlus.

  20. Energy savings and economics of advanced control strategies for packaged air conditioners with gas heat

    SciTech Connect (OSTI)

    Wang, Weimin; Katipamula, Srinivas; Huang, Yunzhi; Brambley, Michael R.

    2013-10-01

    This paper presents an evaluation of the potential energy savings from adding advanced control to existing packaged air conditioners. Advanced control options include air-side economizer, multi-speed fan control, demand control ventilation and staged cooling. The energy and cost savings from the different control strategies individually and in combination are estimated using the EnergyPlus detailed energy simulation program for four building types, namely, a small office building, a stand-alone retail building, a strip mall building and a supermarket building. For each of the four building types, the simulation was run for 16 locations covering all 15 climate zones in the U.S. The maximum installed cost of a replacement controller that provides acceptable payback periods to owners is estimated.

  1. EA-1892: Direct Final Rule Energy Conservation Standards for Residential Furnaces and Residential Central Air Conditioners & Heat Pumps

    Broader source: Energy.gov [DOE]

    This EA evaluates the environmental impacts of a proposal to adopt energy conservation standards for various consumer products and certain commercial and industrial equipment, including residential furnaces and residential air conditioners and heat pumps, as required by the Energy Policy and Conservation Act, as amended (42 U.S.C. 6291 et seq.)

  2. Field evaluation of advanced controls for the retrofit of packaged air conditioners and heat pumps

    SciTech Connect (OSTI)

    Wang, Weimin; Katipamula, Srinivas; Ngo, Hung; Underhill, Ronald M.; Taasevigen, Danny J.; Lutes, Robert G.

    2015-09-01

    This paper documents the magnitude of energy savings achievable in the field by retrofitting existing packaged rooftop units (RTUs) with advanced control strategies not ordinarily used for RTUs. A total of 66 RTUs on 8 different buildings were retrofitted with a commercially available advanced controller for improving RTU operational efficiency. The controller features enhanced air-side economizer control, multi-speed fan control, and demand controlled ventilation. Of the 66 RTUs, 18 are packaged heat pumps and the rest are packaged air conditioners with gas heat. The eight buildings cover four building types and four climate conditions. Based on the data collected for about a whole year, the advanced controller reduced the normalized annual RTU energy consumption between 22% and 90%, with an average of 57% for all RTUs. The average fractional savings uncertainty was 12% at 95% confidence level. Normalized annual electricity savings were in the range between 0.47 kWh/h (kWh per hour of RTU operation) and 7.21 kWh/h, with an average of 2.39 kWh/h. RTUs greater than 53 kW and runtime greater than 14 hours per day had payback periods less than 3 years even at $0.05/kWh.

  3. 2014-03-06 Issuance: Test Procedures for Packaged Terminal Air Conditioners and Packaged Terminal Heat Pumps; Notice of Proposed Rulemaking

    Broader source: Energy.gov [DOE]

    This document is a pre-publication Federal Register notice of proposed rulemaking regarding test procedures for packaged terminal air conditioners and packaged terminal heat pumps, as issued by the Deputy Assistant Secretary on March 6, 2014.

  4. Progress towards Managing Residential Electricity Demand: Impacts of Standards and Labeling for Refrigerators and Air Conditioners in India

    SciTech Connect (OSTI)

    McNeil, Michael A.; Iyer, Maithili

    2009-05-30

    The development of Energy Efficiency Standards and Labeling (EES&L) began in earnest in India in 2001 with the Energy Conservation Act and the establishment of the Indian Bureau of Energy Efficiency (BEE). The first main residential appliance to be targeted was refrigerators, soon to be followed by room air conditioners. Both of these appliances are of critical importance to India's residential electricity demand. About 15percent of Indian households own a refrigerator, and sales total about 4 million per year, but are growing. At the same time, the Indian refrigerator market has seen a strong trend towards larger and more consumptive frost-free units. Room air conditioners in India have traditionally been sold to commercial sector customers, but an increasing number are going to the residential sector. Room air conditioner sales growth in India peaked in the last few years at 20percent per year. In this paper, we perform an engineering-based analysis using data specific to Indian appliances. We evaluate costs and benefits to residential and commercial sector consumers from increased equipment costs and utility bill savings. The analysis finds that, while the BEE scheme presents net benefits to consumers, there remain opportunities for efficiency improvement that would optimize consumer benefits, according to Life Cycle Cost analysis. Due to the large and growing market for refrigerators and air conditioners in India, we forecast large impacts from the standards and labeling program as scheduled. By 2030, this program, if fully implemented would reduce Indian residential electricity consumption by 55 TWh. Overall savings through 2030 totals 385 TWh. Finally, while efficiency levels have been set for several years for refrigerators, labels and MEPS for these products remain voluntary. We therefore consider the negative impact of this delay of implementation to energy and financial savings achievable by 2030.

  5. Energy Conservation Program: Energy Conservation Standards for Packaged Terminal Air Conditioners and Packaged Terminal Heat Pumps, Final Rule

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

    Packaged Terminal Air Conditioners and Packaged Terminal Heat Pumps is an action issued by the Department of Energy. 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. 1 [6450-01-P] DEPARTMENT OF ENERGY 10 CFR Part 431 [Docket

  6. China Energy Efficiency Round Robin Testing Results for Room Air Conditioners

    SciTech Connect (OSTI)

    Zhou, Nan; Fridley, David; Zheng, Nina; Pierrot, Andre

    2010-06-07

    In recent years China's energy consumption has increased rapidly. The problem of high energy consumption intensity and low energy utilization efficiency is serious, and the contradiction between economic development and energy and environmental resources has become increasingly acute, making energy conservation and consumption reduction an important society-wide concern. At the same time, global climate change has and will continue to have profound impacts on human survival and development, and is another major challenge to all countries. In order to accelerate China's energy conservation and emission reduction work, the National Leading Group to Address Climate Change, Energy Conservation and Emission Reduction was founded with Premier Wen Jiabao as the head, and the 'Comprehensive Work Program of Energy Conservation and Emission Reduction' and 'China's National Program of Addressing Climate Change' were issued, under which China's energy conservation and emission reduction work has been fully deployed. Efforts to promote energy efficiency have been further strengthened in all levels of government, and various policies and measures have progressively been issued and implemented. In addition, based on China's experience with implementing energy-saving priority strategies over the past 20+ years, our government established a goal of a 20% decrease in energy consumption per unit GDP in the 'Eleventh Five-year Development Plan'. Furthermore, in November 2009, in order to support global greenhouse gas emission reduction activities and promote China's low carbon economic development, the government established a further 40-50% reduction in energy consumption per unit GDP by 2020 compared to the year 2005. Improving energy utilization efficiency by scientific and technological progress will undoubtedly play an important role in achieving the above stated objectives. The improvement of energy efficiency of energy consuming products has always been an important component of all countries energy strategies. As we all know, a very large amount of total energy consumption is due to energy consuming products and equipment, which account for about 50% of China's total energy consumption. However, the current average energy utilization efficiency of this sector is only about 60%, 10 percent lower than the international advanced level. Therefore, China's energy consuming products and equipment sector holds great energy-saving potential. On the other hand, the energy supplied to these products is mainly from fossil fuel combustion, a major source of greenhouse gas (GHG) emissions. Therefore, improving the energy efficiency and augmenting the market share of market-dominant energy consuming products is of significant importance to achieving China's energy saving and emission reduction target and is an effective means to deal with energy and environmental constraints and climate change issues. Main energy consuming products generally include widely-used home appliances, industrial equipment, office equipment, transportation vehicles, etc. China is one of the major manufacturers and exporters of energy end-using products such as air-conditioners, refrigerators, televisions, etc. Their overall energy efficiency is comparatively low and the products are poorly designed, leading to great energy-saving potential. For example, electricity consumption of air conditioners accounts for about 20% of China's total electricity consumption and 40% of the summer electricity peak load in large and medium cities. However, less than 5% of units sold in the domestic market in 2009 reached the standard's highly efficient level of grade 2 above. The electricity consumption of electric motors and their related drive systems accounts for about 60% of China's total electricity consumption; however, less than 2% of the domestic market share consists of energy-efficient electric motor products. Promoting the energy efficiency and market shares of main energy-consuming products has become an important determinant of achieving energy conservation and emission reduc

  7. The Oklahoma Field Test: Air-Conditioning Electricity Savings from Standard Energy Conservation Measures, Radiant Barriers, and High-Efficiency Window Air Conditioners

    SciTech Connect (OSTI)

    Ternes, M.P.

    1992-01-01

    A field test involving 104 houses was performed in Tulsa, Oklahoma, to measure the air-conditioning electricity consumption of low-income houses equipped with window air conditioners, the reduction in this electricity consumption attributed to the installation of energy conservation measures (ECMs) as typically installed under the Oklahoma Weatherization Assistance Program (WAP), and the reduction achieved by the replacement of low-efficiency window air conditioners with high-efficiency units and the installation of attic radiant barriers. Air-conditioning electricity consumption and indoor temperature were monitored weekly during the pre-weatherization period (June to September 1988) and post-weatherization period (May to September 1989). House energy consumption models and regression analyses were used to normalize the air-conditioning electricity savings to average outdoor temperature conditions and the pre-weatherization indoor temperature of each house. The average measured pre-weatherization air-conditioning electricity consumption was 1664 kWh/year ($119/year). Ten percent of the houses used less than 250 kWh/year, while another 10% used more than 3000 kWh/year. An average reduction in air-conditioning electricity consumption of 535 kWh/year ($38/year and 28% of pre-weatherization consumption) was obtained from replacement of one low-efficiency window air conditioner (EER less than 7.0) per house with a high-efficiency unit (EER greater than 9.0). For approximately the same cost, savings tripled to 1503 kWh/year ($107/year and 41% of pre-weatherization consumption) in those houses with initial air-conditioning electricity consumption greater than 2750 kWh/year. For these houses, replacement of a low-efficiency air conditioner with a high-efficiency unit was cost effective using the incremental cost of installing a new unit now rather than later; the average installation cost for these houses under a weatherization program was estimated to be $786. The general replacement of low-efficiency air conditioners (replacing units in all houses without considering pre-weatherization air-conditioning electricity consumption) was not cost effective in the test houses. ECMs installed under the Oklahoma WAP and installed in combination with an attic radiant barrier did not produce air-conditioning electricity savings that could be measured in the field test. The following conclusions were drawn from the study: (1) programs directed at reducing air-conditioning electricity consumption should be targeted at clients with high consumption to improve cost effectiveness; (2) replacing low-efficiency air conditioners with high-efficiency units should be considered an option in a weatherization program directed at reducing air-conditioning electricity consumption; (3) ECMs currently being installed under the Oklahoma WAP (chosen based on effectiveness at reducing space-heating energy consumption) should continue to be justified based on their space-heating energy savings potential only; and (4) attic radiant barriers should not be included in the Oklahoma WAP if alternatives with verified savings are available or until further testing demonstrates energy savings or other benefits in this type of housing.

  8. The Oklahoma Field Test: Air-conditioning electricity savings from standard energy conservation measures, radiant barriers, and high-efficiency window air conditioners

    SciTech Connect (OSTI)

    Ternes, M.P.; Levins, W.P.

    1992-08-01

    A field test Involving 104 houses was performed in Tulsa, Oklahoma, to measure the air-conditioning electricity consumption of low-income houses equipped with window air conditioners, the reduction in this electricity consumption attributed to the installation of energy conservation measures (ECMS) as typically installed under the Oklahoma Weatherization Assistance Program (WAP), and the reduction achieved by the replacement of low-efficiency window air conditioners with high-efficiency units and the installation of attic radiant barriers. Air-conditioning electricity consumption and indoor temperature were monitored weekly during the pre-weatherization period (June to September 1988) and post-weatherization period (May to September 1989). House energy consumption models and regression analyses were used to normalize the air-conditioning electricity savings to average outdoor temperature conditions and the pre-weatherization indoor temperature of each house. The following conclusions were drawn from the study: (1) programs directed at reducing air-conditioning electricity consumption should be targeted at clients with high consumption to improve cost effectiveness; (2) replacing low-efficiency air conditioners with high-efficiency units should be considered an option in a weatherization program directed at reducing air-conditioning electricity consumption; (3) ECMs currently being installed under the Oklahoma WAP (chosen based on effectiveness at reducing space-heating energy consumption) should continue to be justified based on their space-heating energy savings potential only; and (4) attic radiant barriers should not be included in the Oklahoma WAP if alternatives with verified savings are available or until further testing demonstrates energy savings or other benefits in this typo of housing.

  9. Improving Best Air Conditioner Efficiency by 20-30% through a High Efficiency Fan and Diffuser Stage Coupled with an Evaporative Condenser Pre-Cooler

    SciTech Connect (OSTI)

    Parker, Danny S; Sherwin, John R; Raustad, Richard

    2014-04-10

    The Florida Solar Energy Center (FSEC) conducted a research project to improve the best residential air conditioner condenser technology currently available on the market by retrofitting a commercially-available unit with both a high efficiency fan system and an evaporative pre-cooler. The objective was to integrate these two concepts to achieve an ultra-efficient residential air conditioner design. The project produced a working prototype that was 30% more efficient compared to the best currently-available technologies; the peak the energy efficiency ratio (EER) was improved by 41%. Efficiency at the Air-Conditioning and Refrigeration Institute (ARI) standard B-condition which is used to estimate seasonal energy efficiency ratio (SEER), was raised from a nominal 21 Btu/Wh to 32 Btu/Wh.

  10. Alternative Refrigerant Evaluation for High-Ambient Temperature Environments: R-22 and R-410A Alternatives for Mini-Split Air Conditioners

    SciTech Connect (OSTI)

    Abdelaziz, Omar; Munk, Jeffrey D.; Shrestha, Som S.; Linkous, Randall Lee; Goetzler, William; Guernsey, Matt; Kassuga, Theo

    2015-08-01

    The Oak Ridge National Laboratory (ORNL) High-Ambient Temperature Testing Program for Low-GWP Refrigerants aims to develop an understanding of the performance of low-Global Warming Potential (low-GWP) alternatives to Hydrochlorofluorocarbon (HCFC) and Hydrofluorocarbon (HFC) refrigerants in mini-split air conditioners under high ambient temperature conditions. This interim working paper describes the parties involved, the alternative refrigerants selection process, the test procedures, and the preliminary results.

  11. Alternative Refrigerant Evaluation for High-Ambient-Temperature Environments: R-22 and R-410A Alternatives for Mini-Split Air Conditioners

    SciTech Connect (OSTI)

    Abdelaziz, Omar; Shrestha, Som S.; Munk, Jeffrey D.; Linkous, Randall Lee; Goetzler, William; Guernsey, Matt; Kassuga, Theo

    2015-10-01

    The Oak Ridge National Laboratory (ORNL) High-Ambient-Temperature Evaluation Program for low– global warming potential (Low-GWP) Refrigerants aims to develop an understanding of the performance of low-GWP alternative refrigerants to hydrochlorofluorocarbon (HCFC) and hydrofluorocarbon (HFC) refrigerants in mini-split air conditioners under high-ambient-temperature conditions. This final report describes the parties involved, the alternative refrigerant selection process, the test procedures, and the final results.

  12. air_water.cdr

    Office of Legacy Management (LM)

    12/2011 Air Monitoring Groundwater Monitoring Surface Water Monitoring A continuously operating air monitoring network was in place from 1986 through 2000 for the Weldon Spring Site Remedial Action Project (WSSRAP) to measure levels of gamma radiation, radioactive dust particles, radon gas, and asbestos. With remediation of contaminated materials essentially complete and measurements indistinguishable from background, the U.S. Department of Energy (DOE) ceased perimeter and offsite air

  13. Improving the Operating Efficiency of Packaged Air Conditioners and Heat Pumps

    SciTech Connect (OSTI)

    Katipamula, Srinivas; Wang, Weimin; Vowles, Mira

    2014-03-10

    This article discusses several control strategies that can significantly reduce energy consumption associated with packaged rooftop units RTUs). Although all of the considered strategies are widely used in built-up air-handing units, they are not commonly used in existing RTUs. Both simulation and field evaluations show that adding these control strategies to existing RTUs can reduce their energy consumption by between 30% and 60%.

  14. Advanced Thin Film Thermoelectric Systems forEfficient Air-Conditioner...

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

    Sheetak will work on developing a full scale prototype of its low cost heat pump water heater. These solid state heat pumping elements can be implemented in low cost manner which ...

  15. Local Voltage Support from Distributed Energy Resources to Prevent Air Conditioner Motor Stalling

    SciTech Connect (OSTI)

    Baone, Chaitanya A; Xu, Yan; Kueck, John D

    2010-01-01

    Microgrid voltage collapse often happens when there is a high percentage of low inertia air-conditioning (AC) motors in the power systems. The stalling of the AC motors results in Fault Induced Delayed Voltage Recovery (FIDVR). A hybrid load model including typical building loads, AC motor loads, and other induction motor loads is built to simulate the motoring stalling phenomena. Furthermore, distributed energy resources (DE) with local voltage support capability are utilized to boost the local bus voltage during a fault, and prevent the motor stalling. The simulation results are presented. The analysis of the simulation results show that local voltage support from multiple DEs can effectively and economically solve the microgrid voltage collapse problem.

  16. 2014-08-19 Issuance Appliance Standards and Rulemaking Federal Advisory Committee (ASRAC)- Central Air Conditioner Regional Standards Enforcement Working Group; Notice of Open Meetings

    Broader source: Energy.gov [DOE]

    This document is a pre-publication Federal Registe notice of open meetings regarding the Appliance Standards and Rulemaking Federal Advisory Committee (ASRAC) - Central Air Conditioner Regional Standards Enforcement Working Group, as issued by the Deputy Assistant Secretary for Energy Efficiency on August 19, 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.

  17. Properties and Cycle Performance of Refrigerant Blends Operating Near and Above the Refrigerant Critical Point, Task 2: Air Conditioner System Study

    SciTech Connect (OSTI)

    Piotr A. Domanski; W. Vance Payne

    2002-10-31

    The main goal of this project was to investigate and compare the performance of an R410A air conditioner to that of an R22 air conditioner, with specific interest in performance at high ambient temperatures at which the condenser of the R410A system may be operating above the refrigerant's critical point. Part 1 of this project consisted of conducting comprehensive measurements of thermophysical for refrigerant R125 and refrigerant blends R410A and R507A and developing new equation of state formulations and mixture models for predicting thermophysical properties of HFC refrigerant blends. Part 2 of this project conducted performance measurements of split-system, 3-ton R22 and R410A residential air conditioners in the 80 to 135 F (27.8 to 57.2 C) outdoor temperature range and development of a system performance model. The performance data was used in preparing a beta version of EVAP-COND, a windows-based simulation package for predicting performance of finned-tube evaporators and condensers. The modeling portion of this project also included the formulation of a model for an air-conditioner equipped with a thermal expansion valve (TXV). Capacity and energy efficiency ratio (EER) were measured and compared. The R22 system's performance was measured over the outdoor ambient temperature range of 80 to 135 F (27.8 to 57.2 C). The same test range was planned for the R410A system. However, the compressor's safety system cut off the compressor at the 135.0 F (57.2 C) test temperature. The highest measurement on this system was at 130.0 F (54.4 C). Subsequently, a custom-manufactured R410A compressor with a disabled safety system and a more powerful motor was installed and performance was measured at outdoor temperatures up to 155.0 F (68.3 C). Both systems had similar capacity and EER performance at 82.0 F (27.8 C). The capacity and EER degradation of both systems were nearly linearly dependent with rising ambient outdoor ambient test temperatures. The performance degradation of R410A at higher temperatures was greater than R22. However, the R22 and R410A systems both operated normally during all tests. Visual observations of the R410A system provided no indication of vibrations or TXV hunting at high ambient outdoor test conditions with the compressor operating in the transcritical regime.

  18. 2015-02-13 Issuance: Energy Conservation Standards for Portable Air Conditioners; Notice of Public Meeting and Availability of the Preliminary Technical Support Document

    Broader source: Energy.gov [DOE]

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

  19. Room Air Conditioners

    Broader source: Energy.gov [DOE]

    The Department of Energy (DOE) develops standardized data templates for reporting the results of tests conducted in accordance with current DOE test procedures. Templates may be used by third-party laboratories under contract with DOE that conduct testing in support of ENERGY STAR verification, DOE rulemakings, and enforcement of the federal energy conservation standards.

  20. Air-to-air turbocharged air cooling versus air-to-water turbocharged air cooling

    SciTech Connect (OSTI)

    Moranne, J.-P.; Lukas, J.J.

    1984-01-01

    In Europe, turbocharged air in diesel engines used in on-road vehicles is cooled only by air. It is expected that by 1990, ten to twelve percent of European heavy trucks with diesel engines will cool turbocharged air by water. Air-to-air turbocharges air cooling is reviewed and the evolution of air-to-water turbocharged air cooling presented before the two systems are compared.

  1. 2015-03-24 Issuance: ASRAC; Notice of Intent to Establish the Commercial Package Air Conditioners and Heat Pumps and Commercial Warm Air Furnaces Working Group to Negotiate Potential Energy Conservation Standards

    Broader source: Energy.gov [DOE]

    This document is a pre-publication Federal Register Notice of Intent regarding potential Energy Conservation Standards for Commercial Package Air Conditioners and Heat Pumps and Commercial Warm Air Furnaces, as issued by the Deputy Assistant Secretary for Energy Efficiency on March 24, 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.

  2. Solar-Powered, Liquid-Desiccant Air Conditioner for Low-Electricity Humidity Control: Report and Summary Report

    SciTech Connect (OSTI)

    Dean, J.; Kozubal, E.; Herrmann, L.; Miller, J.; Lowenstein, A.; Barker, G.; Slayzak, S.

    2012-11-01

    The primary objective of this project was to demonstrate the capabilities of a new high-performance, liquid-desiccant dedicated outdoor air system (DOAS) to enhance cooling efficiency and comfort in humid climates while substantially reducing electric peak demand at Tyndall Air Force Base (AFB), which is 12 miles east of Panama City, Florida.

  3. Technology Solutions Case Study: A Homeowners Guide to Window Air Conditioner Installation for Efficiency and Comfort

    SciTech Connect (OSTI)

    C. Booten

    2013-06-01

    This fact sheet offers a step-by-step guide to proper installation of window air conditioning units, in order to improve energy efficiency, cost savings, and comfort for homeowners.

  4. A Homeowners Guide to Window Air Conditioner Installation for Efficiency and Comfort (Fact Sheet), Building America Case Study: Technology Solutions for Existing Homes, Building Technologies Office (BTO)

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

    Homeowners in the United States spend one out of every eight dollars of utility costs on cooling their living space. Window air conditioners (A/Cs) are an inexpensive alternative to central systems, and are sold in greater numbers each year than all other residential cooling systems. They are purchased to cool a specifc room and are easy for anyone to install. In contrast to these benefts, window A/Cs come at a cost-they operate less effciently (using more energy to do the same cooling) than

  5. A Homeowners Guide to Window Air Conditioner Installation for Efficiency and Comfort (Fact Sheet), Building America Case Study: Technology Solutions for Existing Homes, Building Technologies Office (BTO)

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

    Homeowners in the United States spend one out of every eight dollars of utility costs on cooling their living space. Window air conditioners (A/Cs) are an inexpensive alternative to central systems, and are sold in greater numbers each year than all other residential cooling systems. They are purchased to cool a specifc room and are easy for anyone to install. In contrast to these benefts, window A/Cs come at a cost-they operate less effciently (using more energy to do the same cooling) than

  6. New Air and Water-Resistive Barrier Technologies for Commercial...

    Energy Savers [EERE]

    New Air and Water-Resistive Barrier Technologies for Commercial Buildings New Air and Water-Resistive Barrier Technologies for Commercial Buildings New Air and Water-Resistive ...

  7. Attenuator And Conditioner

    DOE Patents [OSTI]

    Anderson, Gene R. (Albuquerque, NM); Armendariz, Marcelino G. (Albuquerque, NM); Carson, Richard F. (Albuquerque, NM); Bryan, Robert P. (Albuquerque, NM); Duckett, III, Edwin B. (Albuquerque, NM); Kemme, Shanalyn Adair (Albuquerque, NM); McCormick, Frederick B. (Albuquerque, NM); Peterson, David W. (Sandia Park, NM)

    2006-04-04

    An apparatus and method of attenuating and/or conditioning optical energy for an optical transmitter, receiver or transceiver module is disclosed. An apparatus for attenuating the optical output of an optoelectronic connector including: a mounting surface; an array of optoelectronic devices having at least a first end; an array of optical elements having at least a first end; the first end of the array of optical elements optically aligned with the first end of the array of optoelectronic devices; an optical path extending from the first end of the array of optoelectronic devices and ending at a second end of the array of optical elements; and an attenuator in the optical path for attenuating the optical energy emitted from the array of optoelectronic devices. Alternatively, a conditioner may be adapted in the optical path for conditioning the optical energy emitted from the array of optoelectronic devices.

  8. MHK Technologies/Water Air Pump WAP | Open Energy Information

    Open Energy Info (EERE)

    Water Air Pump WAP < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Water Air Pump WAP.jpg Technology Profile Primary Organization Shamil...

  9. Homeowner's Guide to Window Air Conditioner Installation for Efficiency and Comfort (Fact Sheet), Building America Case Study: Technology Solutions for Existing Homes, Building Technologies Office (BTO)

    SciTech Connect (OSTI)

    Not Available

    2013-06-01

    This fact sheet offers a step-by-step guide to proper installation of window air conditioning units, in order to improve efficiency and comfort for homeowners.

  10. Air and water cooled modulator

    DOE Patents [OSTI]

    Birx, D.L.; Arnold, P.A.; Ball, D.G.; Cook, E.G.

    1995-09-05

    A compact high power magnetic compression apparatus and method are disclosed for delivering high voltage pulses of short duration at a high repetition rate and high peak power output which does not require the use of environmentally unacceptable fluids such as chlorofluorocarbons either as a dielectric or as a coolant, and which discharges very little waste heat into the surrounding air. A first magnetic switch has cooling channels formed therethrough to facilitate the removal of excess heat. The first magnetic switch is mounted on a printed circuit board. A pulse transformer comprised of a plurality of discrete electrically insulated and magnetically coupled units is also mounted on said printed board and is electrically coupled to the first magnetic switch. The pulse transformer also has cooling means attached thereto for removing heat from the pulse transformer. A second magnetic switch also having cooling means for removing excess heat is electrically coupled to the pulse transformer. Thus, the present invention is able to provide high voltage pulses of short duration at a high repetition rate and high peak power output without the use of environmentally unacceptable fluids and without discharging significant waste heat into the surrounding air. 9 figs.

  11. Air and water cooled modulator

    DOE Patents [OSTI]

    Birx, Daniel L. (Oakley, CA); Arnold, Phillip A. (Livermore, CA); Ball, Don G. (Livermore, CA); Cook, Edward G. (Livermore, CA)

    1995-01-01

    A compact high power magnetic compression apparatus and method for delivering high voltage pulses of short duration at a high repetition rate and high peak power output which does not require the use of environmentally unacceptable fluids such as chlorofluorocarbons either as a dielectric or as a coolant, and which discharges very little waste heat into the surrounding air. A first magnetic switch has cooling channels formed therethrough to facilitate the removal of excess heat. The first magnetic switch is mounted on a printed circuit board. A pulse transformer comprised of a plurality of discrete electrically insulated and magnetically coupled units is also mounted on said printed board and is electrically coupled to the first magnetic switch. The pulse transformer also has cooling means attached thereto for removing heat from the pulse transformer. A second magnetic switch also having cooling means for removing excess heat is electrically coupled to the pulse transformer. Thus, the present invention is able to provide high voltage pulses of short duration at a high repetition rate and high peak power output without the use of environmentally unacceptable fluids and without discharging significant waste heat into the surrounding air.

  12. Central Air Conditioning | Department of Energy

    Energy Savers [EERE]

    Central Air Conditioning Central Air Conditioning Central air conditioners circulate cool air through a system of supply and return ducts. | Photo courtesy of ©iStockphoto/DonNichols. Central air conditioners circulate cool air through a system of supply and return ducts. | Photo courtesy of ©iStockphoto/DonNichols. Central air conditioners circulate cool air through a system of supply and return ducts. Supply ducts and registers (i.e., openings in the walls, floors, or ceilings covered by

  13. Air Conditioning | Department of Energy

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

    Heat & Cool » Home Cooling Systems » Air Conditioning Air Conditioning 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 Two-thirds of all homes in the

  14. DOE Requires Air-Con International to Cease Sales of Inefficient Air

    Office of Environmental Management (EM)

    Conditioners and Proposes Penalties | Department of Energy Air-Con International to Cease Sales of Inefficient Air Conditioners and Proposes Penalties DOE Requires Air-Con International to Cease Sales of Inefficient Air Conditioners and Proposes Penalties September 21, 2010 - 6:43pm Addthis The Department has issued a Notice of Noncompliance Determination and Proposed Civil Penalty to Air-Con, International, requiring Air-Con to cease the sale of certain air-conditioning systems in the

  15. Central Air Conditioning | Department of Energy

    Office of Environmental Management (EM)

    Air supply and return ducts come from indoors through the home's exterior wall or roof to connect with the packaged air conditioner, which is usually located outdoors....

  16. Measure Guideline: Air Conditioner Diagnostics, Maintenance,...

    Office of Scientific and Technical Information (OSTI)

    as well as California's Title 24 vintage assumptions, where appropriate. U-factor and solar heat gain coefficient (SHGC) values for the single metal pane windows were taken...

  17. DOE Investigates Possible Air Conditioner Efficiency Violations

    Broader source: Energy.gov [DOE]

    The Department of Energy’s Office of Enforcement is committed to its compliance enforcement responsibilities with regard to federal energy conservation standards and ensuring that all those subject...

  18. Measure Guideline. Air Conditioner Diagnostics, Maintenance,...

    Office of Scientific and Technical Information (OSTI)

    Cite: Bibtex Format Close 0 pages in this document matching the terms "" Search For Terms: Enter terms in the toolbar above to search the full text of this document for pages...

  19. Room Air Conditioners | Department of Energy

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

    can meet the unit's power requirements. Room units operate on 115-volt or 230-volt circuits. The standard household receptacle is a connection for a 115-volt branch circuit....

  20. Room Air Conditioners | Open Energy Information

    Open Energy Info (EERE)

    Contact needs updating Image needs updating Reference needed Missing content Broken link Other Additional Comments Cancel Submit Category: Articles with outstanding TODO tasks...

  1. Central Air conditioners | Open Energy Information

    Open Energy Info (EERE)

    Contact needs updating Image needs updating Reference needed Missing content Broken link Other Additional Comments Cancel Submit Category: Articles with outstanding TODO tasks...

  2. Low-noise pulse conditioner

    DOE Patents [OSTI]

    Bird, David A. (Oak Ridge, TN)

    1983-01-01

    A low-noise pulse conditioner is provided for driving electronic digital processing circuitry directly from differentially induced input pulses. The circuit uses a unique differential-to-peak detector circuit to generate a dynamic reference signal proportional to the input peak voltage. The input pulses are compared with the reference signal in an input network which operates in full differential mode with only a passive input filter. This reduces the introduction of circuit-induced noise, or jitter, generated in ground referenced input elements normally used in pulse conditioning circuits, especially speed transducer processing circuits.

  3. Stronger Manufacturers' Energy Efficiency Standards for Residential Air

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

    Conditioners Go Into Effect Today | Department of Energy Stronger Manufacturers' Energy Efficiency Standards for Residential Air Conditioners Go Into Effect Today Stronger Manufacturers' Energy Efficiency Standards for Residential Air Conditioners Go Into Effect Today January 23, 2006 - 11:09am Addthis WASHINGTON, DC -- To increase the energy efficiency of residential air conditioners, the U.S. Department of Energy (DOE) has issued new manufacturing standards that go into effect today,

  4. Laboratory Performance Testing of Residential Window Mounted Air

    Energy Savers [EERE]

    Conditioners | Department of Energy Laboratory Performance Testing of Residential Window Mounted Air Conditioners Laboratory Performance Testing of Residential Window Mounted Air Conditioners This presentation was delivered at the U.S. Department of Energy Building America Technical Update meeting on April 29-30, 2013, in Denver, Colorado. PDF icon testing_residential_ariconditioners_booten_winkler.pdf More Documents & Publications Key Issues High-Efficiency Window Air Conditioners -

  5. Save Money and Stay Cool with an Efficient, Well-Maintained Air...

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

    Money and Stay Cool with an Efficient, Well-Maintained Air Conditioner Save Money and Stay Cool with an Efficient, Well-Maintained Air Conditioner June 29, 2010 - 7:30am Addthis ...

  6. Low-noise pulse conditioner

    DOE Patents [OSTI]

    Bird, D.A.

    1981-06-16

    A low-noise pulse conditioner is provided for driving electronic digital processing circuitry directly from differentially induced input pulses. The circuit uses a unique differential-to-peak detector circuit to generate a dynamic reference signal proportional to the input peak voltage. The input pulses are compared with the reference signal in an input network which operates in full differential mode with only a passive input filter. This reduces the introduction of circuit-induced noise, or jitter, generated in ground referenced input elements normally used in pulse conditioning circuits, especially speed transducer processing circuits. This circuit may be used for conditioning the sensor signal from the Fidler coil in a gas centrifuge for separation of isotopic gaseous mixtures.

  7. High efficiency laser spectrum conditioner

    DOE Patents [OSTI]

    Greiner, Norman R.

    1980-01-01

    A high efficiency laser spectrum conditioner for generating a collinear parallel output beam containing a predetermined set of frequencies from a multifrequency laser. A diffraction grating and spherical mirror are used in combination, to disperse the various frequencies of the input laser beam and direct these frequencies along various parallel lines spatially separated from one another to an apertured mask. Selection of the desired frequencies is accomplished by placement of apertures at locations on the mask where the desired frequencies intersect the mask. A recollimated parallel output beam with the desired set of frequencies is subsequently generated utilizing a mirror and grating matched and geometrically aligned in the same manner as the input grating and mirror.

  8. Method and apparatus for extracting water from air

    DOE Patents [OSTI]

    Spletzer, Barry L.; Callow, Diane Schafer; Marron, Lisa C.; Salton, Jonathan R.

    2002-01-01

    The present invention provides a method and apparatus for extracting liquid water from moist air using minimal energy input. The method comprises compressing moist air under conditions that foster the condensation of liquid water. The air can be decompressed under conditions that do not foster the vaporization of the condensate. The decompressed, dried air can be exchanged for a fresh charge of moist air and the process repeated. The liquid condensate can be removed for use. The apparatus can comprise a compression chamber having a variable internal volume. An intake port allows moist air into the compression chamber. An exhaust port allows dried air out of the compression chamber. A condensation device fosters condensation at the desired conditions. A condensate removal port allows liquid water to be removed.

  9. Method and apparatus for extracting water from air

    DOE Patents [OSTI]

    Spletzer, Barry L.

    2001-01-01

    The present invention provides a method and apparatus for extracting liquid water from moist air using minimal energy input. The method comprises compressing moist air under conditions that foster the condensation of liquid water (ideally isothermal to a humidity of 1.0, then adiabatic thereafter). The air can be decompressed under conditions that do not foster the vaporization of the condensate. The decompressed, dried air can be exchanged for a fresh charge of moist air and the process repeated. The liquid condensate can be removed for use. The apparatus can comprise a compression chamber having a variable internal volume. An intake port allows moist air into the compression chamber. An exhaust port allows dried air out of the compression chamber. A condensation device fosters condensation at the desired conditions. A condensate removal port allows liquid water to be removed.

  10. Analysis of supersaturated air in natural waters and reservoirs

    SciTech Connect (OSTI)

    D'Aoust, B.G.; Clark, M.J.R.

    1980-11-01

    Supersaturation of water by air or other gases can be caused by temperature increase, air or gas injection by pressurized pumping, or turbulent injection by falling water that traps air. The physics of supersaturation are outlined, and alternative sampling and analysis techniques used to evaluate the extent of supersaturation are described. These techniques range from complex, exacting procedures commonly used in the biomedical analytical laboratory to simple, portable methods suited to field application or continuous monitoring. Analytical techniques tested during 1976-78 in the Columbia and Snake river system, both of which were seriously supersaturated as a result of entrainment of air into water spilling over hydroelectric dams, are comparatively evaluated.

  11. Central Air Conditioning | Department of Energy

    Energy Savers [EERE]

    that the newly installed air conditioner has the exact refrigerant charge and airflow rate specified by the manufacturer Locates the thermostat away from heat sources, such as...

  12. ARM - Field Campaign - AIRS Water Vapor Experiment - Ground ...

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

    govCampaignsAIRS Water Vapor Experiment - Ground (AWEX-G) ARM Data Discovery Browse Data Comments? We would love to hear from you Send us a note below or call us at...

  13. Hydroxide Anion at the Air-Water Interface (Journal Article)...

    Office of Scientific and Technical Information (OSTI)

    Title: Hydroxide Anion at the Air-Water Interface Here we use first-principles molecular dynamics simulations, in which the forces are obtained "on the fly" from electronic...

  14. New Air and Water-Resistive Barrier Technologies for Commercial Buildings |

    Energy Savers [EERE]

    Department of Energy New Air and Water-Resistive Barrier Technologies for Commercial Buildings New Air and Water-Resistive Barrier Technologies for Commercial Buildings New Air and Water-Resistive Barrier Technologies for Commercial Buildings New Air and Water-Resistive Barrier Technologies for Commercial Buildings New Air and Water-Resistive Barrier Technologies for Commercial Buildings New Air and Water-Resistive Barrier Technologies for Commercial Buildings Lead Performer: Oak Ridge

  15. Analysis of supersaturated air in natural waters and reservoirs

    SciTech Connect (OSTI)

    D'Aoust, B.G.; Clark, M.J.R.

    1980-11-01

    Supersaturation of air or other gases in water can be caused by a temperature increase, air or gas injection by pressurized pumping, or turbulent injection by falling water which traps air when spills are allowed by hydroelectric projects. Evaluation of this problem requires both an understanding of the physics of the situation and practical knowledge of a number of alternative techniques for analysis. These range from complex, exacting procedures commonly used in the biomedical analytical laboratory to simple, portable methods well suited to use in the field or continuous monitoring. The authors have reviewed and refined several of these methods, have developed others, and have compared relevant techniques in the field and laboratory.

  16. Innovative Evaporative and Thermally Activated Technologies Improve Air Conditioning; The Spectrum of Clean Energy Innovation (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-06-01

    Fact sheet describes NREL's work on a desiccant enhanced evaporative air conditioner (DEVap) that uses 90% less electricity than traditional air conditioning units.

  17. East Germany struggles to clean its air and water

    SciTech Connect (OSTI)

    Cherfas, J.

    1990-04-20

    East Germans are working hard on a strategy to improve their polluted environment. Industrial plants are largely responsible for this pollution. A shroud of haze veils the suburbs of East Berlin. Far to the south the giant power plants around Leipzig pour more dust and sulfur dioxide into the air than in any other country in Europe. More than 90% of the country's electricity comes from brown coal, accompanied by prodigious quantities of dust and sulfur dioxide: almost 6 million tones of sulfur dioxide and more than 2 million tones of dust in 1988. East Germany enjoys some of the cheapest energy in the world, and the world's third highest energy consumption per capita, behind the United States, and Canada. Naturally, is also suffers air quality and health problems. The country is trying to cut down on consumption and clean up on generation. Actually, water quality is the number one priority, which unlike air is in very short supply.

  18. Saving Money During the Air Conditioning Season | Department...

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

    Saving Money During the Air Conditioning Season Saving Money During the Air Conditioning Season June 4, 2014 - 4:00pm Addthis Keeping your air conditioner maintained can help save ...

  19. Evaporation of water with single and multiple impinging air jets

    SciTech Connect (OSTI)

    Trabold, T.A.; Obot, N.T. )

    1991-08-01

    An experimental investigation of impingement water evaporation under a single jet and arrays of circular jets was made. The parametric study included the effects of jet Reynolds number and standoff spacing for both single and multiple jets, as well as surface-to-nozzle diameter ratio and fractional nozzle open area for single and multiple jets, respectively. The nozzle exit temperature of the air jet, about the same as that of the laboratory, was 3-6C higher than that of the evaporating water. Predictive equations are provided for mass transfer coefficient in terms of the flow and geometric conditions.

  20. HVAC, Water Heating, and Appliance Publications | Department of Energy

    Office of Environmental Management (EM)

    HVAC, Water Heating, and Appliance Publications HVAC, Water Heating, and Appliance Publications October 15, 2015 Alternative Refrigerant Evaluation for High-Ambient-Temperature Environments: R-22 and R-410A Alternatives for Mini-Split Air Conditioners This publication is a final report for Oak Ridge National Laboratory's High-Ambient-Temperature Evaluation Program for Low Global Warming Potential (Low-GWP) Refrigerants project. October 9, 2015 Pump and Fan Technology Characterization and R&D

  1. High Efficiency Integrated Space Conditioning, Water Heating and Air Distribution System for HUD-Code Manufactured Housing

    SciTech Connect (OSTI)

    Henry DeLima; Joe Akin; Joseph Pietsch

    2008-09-14

    Recognizing the need for new space conditioning and water heating systems for manufactured housing, DeLima Associates assembled a team to develop a space conditioning system that would enhance comfort conditions while also reducing energy usage at the systems level. The product, Comboflair® was defined as a result of a needs analysis of project sponsors and industry stakeholders. An integrated system would be developed that would combine a packaged airconditioning system with a small-duct, high-velocity air distribution system. In its basic configuration, the source for space heating would be a gas water heater. The complete system would be installed at the manufactured home factory and would require no site installation work at the homesite as is now required with conventional split-system air conditioners. Several prototypes were fabricated and tested before a field test unit was completed in October 2005. The Comboflair® system, complete with ductwork, was installed in a 1,984 square feet, double-wide manufactured home built by Palm Harbor Homes in Austin, TX. After the home was transported and installed at a Palm Harbor dealer lot in Austin, TX, a data acquisition system was installed for remote data collection. Over 60 parameters were continuously monitored and measurements were transmitted to a remote site every 15 minutes for performance analysis. The Comboflair® system was field tested from February 2006 until April 2007. The cooling system performed in accordance with the design specifications. The heating system initially could not provide the needed capacity at peak heating conditions until the water heater was replaced with a higher capacity standard water heater. All system comfort goals were then met. As a result of field testing, we have identified improvements to be made to specific components for incorporation into production models. The Comboflair® system will be manufactured by Unico, Inc. at their new production facility in St. Louis, MO. The product will be initially launched in the hot-humid climates of the southern U.S.

  2. DOE Requires Manufacturers to Halt Sales of Heat Pumps and Air...

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

    Distributor Products -- must stop distributing 61 heat pump models and 1 air conditioner model that DOE has determined do not comply with federal energy conservation standards. ...

  3. Optimization of hybrid-water/air-cooled condenser in an enhanced turbine

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

    geothermal ORC system | Department of Energy Optimization of hybrid-water/air-cooled condenser in an enhanced turbine geothermal ORC system Optimization of hybrid-water/air-cooled condenser in an enhanced turbine geothermal ORC system DOE Geothermal Program Peer Review 2010 - Presentation. Project objective: To improve the efficiency and output variability of geothermal-based ORC power production systems with minimal water consumption by deploying: 1) a hybrid-water/air cooled condenser with

  4. History of Air Conditioning

    Broader source: Energy.gov [DOE]

    We take it for granted but what would life be like without the air conditioner? Once considered a luxury, this invention is now an essential, allowing us to cool everything from homes, businesses, businesses, data centers, laboratories and other buildings vital to our daily lives. Explore this timeline to learn some of the key dates in the history of air conditioning.

  5. New Braunfels Utilities- Energy Efficiency and Water Conservation Rebate Programs

    Broader source: Energy.gov [DOE]

    New Braunfels Utilities offer a variety of programs encouraging its customers to make their homes more energy efficiency. Rebates are available for washing machines, air conditioners, heat pumps,...

  6. New Braunfels Utilities - Energy Efficiency and Water Conservation...

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

    Clothes Washers Heat Pumps Air conditioners Other EE LED Lighting Program Info Sector Name Utility Administrator New Braunfels Utilities Website http:nbutexas.com...

  7. Air-Con Agrees to Pay Civil Penalty to Resolve Enforcement Action

    Broader source: Energy.gov [DOE]

    The Department of Energy has settled the civil penalty action it initiated against Air-Con International for Air-Con’s sale of air conditioners in the United States that used more energy than...

  8. List of Central Air conditioners Incentives | Open Energy Information

    Open Energy Info (EERE)

    Lighting Processing and Manufacturing Equipment Biomass CHPCogeneration Landfill Gas Photovoltaics Solar Space Heat Solar Thermal Electric Solar Thermal Process Heat Solar...

  9. NREL Solves Residential Window Air Conditioner Performance Limitations (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-05-01

    Comprehensive performance tests lead to enhanced modeling capability and affordable methods to increase energy efficiency.

  10. High-Efficiency Rooftop Air Conditioners: Innovative Procurement...

    Office of Scientific and Technical Information (OSTI)

    DOE Contract Number: AC05-76RL01830 Resource Type: Journal Article Resource Relation: Journal Name: IEA Heat Pump Centre Newsletter; Journal Volume: 21; Journal Issue: 2 Research ...

  11. Purchasing Energy-Efficient Residential Central Air Conditioners...

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

    ... low-use applications or in locations with very low rates for electricity or natural gas. ... Incorporate Federal Acquisition Regulation Language in Contracts These mandatory ...

  12. NREL: Continuum Magazine - Air Conditioner Ready to Change Industry

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

    into," Kozubal said. Judkoff added, "We'd investigated evaporative and desiccant cooling technologies for many years, but could not find a way to combine them in a cost-effective...

  13. List of Room Air Conditioners Incentives | Open Energy Information

    Open Energy Info (EERE)

    Active AEP Ohio - Commercial New Construction Energy Efficiency Rebate Program (Ohio) Utility Rebate Program Ohio Commercial Industrial Local Government Municipal Utility...

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

    Energy Savers [EERE]

    reduces the equipment's performance. Researchers at the National Renewable Energy Laboratory (NREL) earned a 2013 Top Innovation award for their evaluation of the...

  15. Development of vehicle magnetic air conditioner (VMAC) technology...

    Office of Scientific and Technical Information (OSTI)

    Corporation of America Technology Center (ACATC), Madison, WI, through a subcontract with ISU. Authors: Gschneidner, Karl A., Jr. ; Pecharsky, V.K. ; Jiles, David ; Zimm, Carl B. ...

  16. Four Central Air Conditioners Determined Noncompliant With Energy Efficiency Standard

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energys Office of Enforcement issued a Notice of Noncompliance Determination (Notice) on September 27, 2011, to AeroSys, Inc. (AeroSys) regarding four models of central ...

  17. The Natural gas Heat Pump and Air Conditioner

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

    ... Distinctive Characteristics: * Single natural gas-driven device * Minimal electricity ... HVAC * 30-50% reduction in energy used * Minimal electricity Grid Independent * No ...

  18. Sabdia's Radial Flow Air Bearing Heat Exchanger

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

    by LED lighting). Long term markets include building-scale air conditioners and heat pumps (total potential energy savings estimated to be 0.5 quads). Impact of Project: 1. ...

  19. Dyess Air Force Base Water Conservation and Green Energy | Department of

    Office of Environmental Management (EM)

    Energy Dyess Air Force Base Water Conservation and Green Energy Dyess Air Force Base Water Conservation and Green Energy Fact sheet describes the Federal Energy Management Program (FEMP) Energy Savings Performance Contract (ESPC) Success Story on water conservation and green energy at Dyess Air Foce Base at Dyess, Texas. PDF icon espc_ss_dyess.pdf More Documents & Publications Energy Savings Performance Contract Success Stories Energy Savings Performance Contract ENABLE Briefing Harold

  20. Tax Credits, Rebates & Savings | Department of Energy

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

    (3) Apply Heat Pumps filter Lighting (3) Apply Lighting filter Water Heaters (3) Apply Water Heaters filter Air conditioners (2) Apply Air conditioners filter Boilers (2) Apply...

  1. Tax Credits, Rebates & Savings | Department of Energy

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

    Solar Photovoltaics (6) Apply Solar Photovoltaics filter Solar Water Heat (6) Apply Solar Water Heat filter Air conditioners (5) Apply Air conditioners filter Biomass (5) Apply...

  2. Tax Credits, Rebates & Savings | Department of Energy

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

    EE filter Solar Space Heat (5) Apply Solar Space Heat filter Water Heaters (5) Apply Water Heaters filter Air conditioners (4) Apply Air conditioners filter Biomass (4) Apply...

  3. Tax Credits, Rebates & Savings | Department of Energy

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

    Solid Waste (10) Apply Municipal Solid Waste filter Solar Water Heat (10) Apply Solar Water Heat filter Wave (10) Apply Wave filter Air conditioners (9) Apply Air conditioners...

  4. History of Air Conditioning | Department of Energy

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

    History of Air Conditioning History of Air Conditioning July 20, 2015 - 3:15pm Addthis Paul Lester Paul Lester Digital Content Specialist, Office of Public Affairs MORE ON AIR CONDITIONING Check out our Energy Saver 101 infographic to learn how air conditioners work. Go to Energy Saver for more tips and advice on home cooling. Stay up-to-date on how the Energy Department is working to improve air conditioning technology. We take the air conditioner for granted, but imagine what life would be

  5. Improvement to Air2Air Technology to Reduce Fresh-Water Evaporative Cooling Loss at Coal-Based Thermoelectric Power Plants

    SciTech Connect (OSTI)

    Ken Mortensen

    2011-12-31

    This program was undertaken to enhance the manufacturability, constructability, and cost of the Air2Air{TM} Water Conservation and Plume Abatement Cooling Tower, giving a validated cost basis and capability. Air2Air{TM} water conservation technology recovers a portion of the traditional cooling tower evaporate. The Condensing Module provides an air-to-air heat exchanger above the wet fill media, extracting the heat from the hot saturated moist air leaving in the cooling tower and condensing water. The rate of evaporate water recovery is typically 10% - 25% annually, depending on the cooling tower location (climate). This program improved the efficiency and cost of the Air2Air{TM} Water Conservation Cooling Tower capability, and led to the first commercial sale of the product, as described.

  6. Managing the Drivers of Air Flow and Water Vapor Transport in Existing Single Family Homes (Revised)

    SciTech Connect (OSTI)

    Cummings, J.; Withers, C.; Martin, E.; Moyer, N.

    2012-10-01

    This document focuses on managing the driving forces which move air and moisture across the building envelope. While other previously published Measure Guidelines focus on elimination of air pathways, the ultimate goal of this Measure Guideline is to manage drivers which cause air flow and water vapor transport across the building envelope (and also within the home), control air infiltration, keep relative humidity (RH) within acceptable limits, avoid combustion safety problems, improve occupant comfort, and reduce house energy use.

  7. Technical support document: Energy efficiency standards for consumer products: Room air conditioners, water heaters, direct heating equipment, mobile home furnaces, kitchen ranges and ovens, pool heaters, fluorescent lamp ballasts and television sets. Volume 2, Fluorescent lamp ballasts, television sets, room air conditioners, and kitchen ranges and ovens

    SciTech Connect (OSTI)

    Not Available

    1993-11-01

    This document is divided into ``volumes`` B through E, dealing with individual classes of consumer products. Chapters in each present engineering analysis, base case forecasts, projected national impacts of standards, life-cycle costs and payback periods, impacts on manufacturers, impacts of standards on electric utilities, and environmental effects. Supporting appendices are included.

  8. Addressing Water Consumption of Evaporative Coolers with Greywater

    SciTech Connect (OSTI)

    Sahai, Rashmi; Shah, Nihar; Phadke, Amol

    2012-07-01

    Evaporative coolers (ECs) provide significant gains in energy efficiency compared to vapor compression air conditioners, but simultaneously have significant onsite water demand. This can be a major barrier to deployment in areas of the world with hot and arid climates. To address this concern, this study determined where in the world evaporative cooling is suitable, the water consumption of ECs in these cities, and the potential that greywater can be used reduce the consumption of potable water in ECs. ECs covered 69percent of the cities where room air conditioners are may be deployed, based on comfort conditions alone. The average water consumption due to ECs was found to be 400 L/household/day in the United States and Australia, with the potential for greywater to provide 50percent this amount. In the rest of the world, the average water consumption was 250 L/household/day, with the potential for greywater to supply 80percent of this amount. Home size was the main factor that contributed to this difference. In the Mediterranean, the Middle East, Northern India, and the Midwestern and Southwestern United States alkalinity levels are high and water used for bleeding will likely contribute significantly to EC water consumption. Although technically feasible, upfront costs for household GW systems are currently high. In both developed and developing parts of the world, however, a direct EC and GW system is cost competitive with conventional vapor compression air conditioners. Moreover, in regions of the world that face problems of water scarcity the benefits can substantially outweigh the costs.

  9. Method and apparatus for extracting water from air using a desiccant

    DOE Patents [OSTI]

    Spletzer, Barry L.; Callow, Diane Schafer

    2003-01-01

    The present invention provides a method and apparatus for extracting liquid water from moist air using minimal energy input. The method can be considered as four phases: (1) adsorbing water from air into a desiccant, (2) isolating the water-laden desiccant from the air source, (3) desorbing water as vapor from the desiccant into a chamber, and (4) isolating the desiccant from the chamber, and compressing the vapor in the chamber to form liquid condensate. The liquid condensate can be removed for use. Careful design of the dead volumes and pressure balances can minimize the energy required. The dried air can be exchanged for fresh moist air and the process repeated. An apparatus comprises a first chamber in fluid communication with a desiccant, and having ports to intake moist air and exhaust dried air. The apparatus also comprises a second chamber in fluid communication with the desiccant. The second chamber allows variable internal pressure, and has a port for removal of liquid condensate. Each chamber can be configured to be isolated or in communication with the desiccant. The first chamber can be configured to be isolated or in communication with a course of moist air. Various arrangements of valves, pistons, and chambers are described.

  10. Fluidized bed heat exchanger with water cooled air distributor and dust hopper

    DOE Patents [OSTI]

    Jukkola, Walfred W.; Leon, Albert M.; Van Dyk, Jr., Garritt C.; McCoy, Daniel E.; Fisher, Barry L.; Saiers, Timothy L.; Karstetter, Marlin E.

    1981-11-24

    A fluidized bed heat exchanger is provided in which air is passed through a bed of particulate material containing fuel. A steam-water natural circulation system is provided for heat exchange and the housing of the heat exchanger has a water-wall type construction. Vertical in-bed heat exchange tubes are provided and the air distributor is water-cooled. A water-cooled dust hopper is provided in the housing to collect particulates from the combustion gases and separate the combustion zone from a volume within said housing in which convection heat exchange tubes are provided to extract heat from the exiting combustion gases.

  11. Seminar 14 - Desiccant Enhanced Air Conditioning: Desiccant Enhanced Evaporative Air Conditioning (Presentation)

    SciTech Connect (OSTI)

    Kozubal, E.

    2013-02-01

    This presentation explains how liquid desiccant based coupled with an indirect evaporative cooler can efficiently produce cool, dry air, and how a liquid desiccant membrane air conditioner can efficiently provide cooling and dehumidification without the carryover problems of previous generations of liquid desiccant systems. It provides an overview to a liquid desiccant DX air conditioner that can efficiently provide cooling and dehumidification to high latent loads without the need for reheat, explains how liquid desiccant cooling and dehumidification systems can outperform vapor compression based air conditioning systems in hot and humid climates, explains how liquid desiccant cooling and dehumidification systems work, and describes a refrigerant free liquid desiccant based cooling system.

  12. High Energy Efficiency Air Conditioning

    SciTech Connect (OSTI)

    Edward McCullough; Patrick Dhooge; Jonathan Nimitz

    2003-12-31

    This project determined the performance of a new high efficiency refrigerant, Ikon B, in a residential air conditioner designed to use R-22. The refrigerant R-22, used in residential and small commercial air conditioners, is being phased out of production in developed countries beginning this year because of concerns regarding its ozone depletion potential. Although a replacement refrigerant, R-410A, is available, it operates at much higher pressure than R-22 and requires new equipment. R-22 air conditioners will continue to be in use for many years to come. Air conditioning is a large part of expensive summer peak power use in many parts of the U.S. Previous testing and computer simulations of Ikon B indicated that it would have 20 - 25% higher coefficient of performance (COP, the amount of cooling obtained per energy used) than R-22 in an air-cooled air conditioner. In this project, a typical new R-22 residential air conditioner was obtained, installed in a large environmental chamber, instrumented, and run both with its original charge of R-22 and then with Ikon B. In the environmental chamber, controlled temperature and humidity could be maintained to obtain repeatable and comparable energy use results. Tests with Ikon B included runs with and without a power controller, and an extended run for several months with subsequent analyses to check compatibility of Ikon B with the air conditioner materials and lubricant. Baseline energy use of the air conditioner with its original R-22 charge was measured at 90 deg F and 100 deg F. After changeover to Ikon B and a larger expansion orifice, energy use was measured at 90 deg F and 100 deg F. Ikon B proved to have about 19% higher COP at 90 deg F and about 26% higher COP at 100 deg F versus R-22. Ikon B had about 20% lower cooling capacity at 90 deg F and about 17% lower cooling capacity at 100 deg F versus R-22 in this system. All results over multiple runs were within 1% relative standard deviation (RSD). All of these values agree well with previous results and computer simulations of Ikon B performance versus R-22. The lower cooling capacity of Ikon B is not a concern unless a particular air conditioner is near its maximum cooling capacity in application. Typically, oversized A/C systems are installed by contractors to cover contingencies. In the extended run with Ikon B, which lasted about 4.5 months at 100 deg F ambient temperature and 68% compressor on time, the air conditioner performed well with no significant loss of energy efficiency. Post-run analysis of the refrigerant, compressor lubricant oil, compressor, compressor outlet tubing, and the filter/dryer showed minor effects but nothing that was considered significant. The project was very successful. All objectives were achieved, and the performance of Ikon B indicates that it can easily be retrofitted into R-22 air conditioners to give 15 - 20% energy savings and a 1 - 3 year payback of retrofit costs depending on location and use. Ikon B has the potential to be a successful commercial product.

  13. Influence of entrapped air pockets on hydraulic transients in water pipelines

    SciTech Connect (OSTI)

    Zhou, Ling; Liu, Prof. Deyou; Karney, Professor Byran W.; Zhang, Qin Fen

    2011-01-01

    The pressure variations associated with a filling undulating pipeline containing an entrapped air pocket are investigated both experimentally and numerically. The influence of entrapped air on abnormal transient pressures is often ambiguous since the compressibility of the air pocket permits the liquid flow to accelerate but also partly cushions the system, with the balance of these tendencies being associated with the initial void fraction of the air pocket. Earlier experimental research involved systems with an initial void fraction greater than 5.8%; this paper focuses on initial void fractions ranging from 0% to 10%, in order to more completely characterize the transient response. Experimental results show that the maximum pressure increases and then decreases as the initial void fraction decreases. A simplified model is developed by neglecting the liquid inertia and energy loss of a short water column near the air-water interface. Comparisons of the calculated and observed results show the model is able to accurately predict peak pressures as a function of void fraction and filling conditions. Rigid water column models, however, perform poorly with small void fractions.

  14. Avoidance responses of salmon and trout to air-supersaturated water

    SciTech Connect (OSTI)

    Stevens, D.G.; Nebeker, A.V.; Baker, R.J.

    1980-11-01

    Coho (Oncorhynchus kisutch), sockeye (O. nerka), and chinook (O. tschawystcha) salmon smolts, and rainbow trout (Salmo gairdneri) avoided air-supersaturated water when tested in a shallow round tank. Steelheads (S. gairdneri) did not consistently avoid the supersaturated water and died from gas bubble disease. The salmon and rainbow trout generally avoided 145 and 125% saturation but did not always avoid 115%. Territorial activity reduced avoidance by steelheads and rainbow trout.

  15. DOE Takes Action to Stop the Sales of Air-Con Air Conditioner...

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

    DOE is proposing a civil penalty of more than 230,000 for importing and distributing ... Read the full Notice of Noncompliance Determination and Proposed Civil Penalty (pdf - ...

  16. Development of an Air-Source Heat Pump Integrated with a Water Heating / Dehumidification Module

    SciTech Connect (OSTI)

    Rice, C Keith; Uselton, Robert B.; Shen, Bo; Baxter, Van D; Shrestha, Som S

    2014-01-01

    A residential-sized dual air-source integrated heat pump (AS-IHP) concept is under development in partnership between ORNL and a manufacturer. The concept design consists of a two-stage air-source heat pump (ASHP) coupled on the air distribution side with a separate novel water heating/dehumidification (WH/DH) module. The motivation for this unusual equipment combination is the forecast trend for home sensible loads to be reduced more than latent loads. Integration of water heating with a space dehumidification cycle addresses humidity control while performing double-duty. This approach can be applied to retrofit/upgrade applications as well as new construction. A WH/DH module capable of ~1.47 L/h water removal and ~2 kW water heating capacity was assembled by the manufacturer. A heat pump system model was used to guide the controls design; lab testing was conducted and used to calibrate the models. Performance maps were generated and used in a TRNSYS sub-hourly simulation to predict annual performance in a well-insulated house. Annual HVAC/WH energy savings of ~35% are predicted in cold and hot-humid U.S. climates compared to a minimum efficiency baseline.

  17. Towards a unified picture of the water self-ions at the air-water...

    Office of Scientific and Technical Information (OSTI)

    OH- prefer to be at the water surface or in the bulk. Here we report a molecular dynamics simulation study of the bulk vs. interfacial behavior of H3O+ and OH- that employs forces...

  18. Bibliography of work on the photocatalytic removal of hazardous compounds from water and air

    SciTech Connect (OSTI)

    Blake, D.M.

    1994-05-01

    This is a bibliography of information in the open literature on work that has been done to date on the photocatalytic oxidation of compounds, principally organic compounds. The goal of the listing is removing hazardous oompounds from water or air. It contains lists of substances and literature citations. The bibliography includes information obtained through the middle of 1993 and some selected references for the balance of that year.

  19. Managing the Drivers of Air Flow and Water Vapor Transport in Existing Single-Family Homes

    SciTech Connect (OSTI)

    Cummings, James; Withers, Charles; Martin, Eric; Moyer, Neil

    2012-10-01

    This report is a revision of an earlier report titled: Measure Guideline: Managing the Drivers of Air Flow and Water Vapor Transport in Existing Single-Family Homes. Revisions include: Information in the text box on page 1 was revised to reflect the most accurate information regarding classifications as referenced in the 2012 International Residential Code. “Measure Guideline” was dropped from the title of the report. An addition was made to the reference list.

  20. Fracture toughness of Alloy 690 and EN52 weld in air and water

    SciTech Connect (OSTI)

    Brown, C.M.; Mills, W.J.

    1999-06-01

    The effect of low and high temperature water with high hydrogen on the fracture toughness of Alloy 690 and its weld, EN52, was characterized using elastic-plastic J{sub IC} methodology. While both materials display excellent fracture resistance in air and elevated temperature (>93 C) water, a dramatic degradation in toughness is observed in 54 C water. The loss of toughness is associated with a hydrogen-induced intergranular cracking mechanism where hydrogen is picked up from the water. Comparison of the cracking behavior in low temperature water with that for hydrogen-precharged specimens tested in air indicates that the critical local hydrogen content required to cause low temperature embrittlement is on the order of 120 to 160 ppm. Loading rate studies show that the cracking resistance is significantly improved at rates above ca. 1000 MPa{radical}m/h because there is insufficient time to produce grain boundary embrittlement. Electron fractographic examinations were performed to correlate cracking behavior with microstructural features and operative fracture mechanics.

  1. BEETIT: Building Cooling and Air Conditioning

    SciTech Connect (OSTI)

    None

    2010-09-01

    BEETIT Project: The 14 projects that comprise ARPA-Es BEETIT Project, short for Building Energy Efficiency Through Innovative Thermodevices, are developing new approaches and technologies for building cooling equipment and air conditioners. These projects aim to drastically improve building energy efficiency and reduce greenhouse gas emissions such as carbon dioxide (CO2) at a cost comparable to current technologies.

  2. Tax Credits, Rebates & Savings | Department of Energy

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

    State Government, Tribal Government, Agricultural, Institutional Savings Category: Solar Water Heat, Water Heaters, Chillers, Furnaces, Boilers, Heat Pumps, Air conditioners,...

  3. Tax Credits, Rebates & Savings | Department of Energy

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

    Government, Institutional Savings Category: Solar Water Heat, Solar Thermal Electric, Solar Photovoltaics, Water Heaters, Furnaces, Heat Pumps, Air conditioners, Caulking...

  4. (Environmental investigation of ground water contamination at Wright-Patterson Air Force Base, Ohio)

    SciTech Connect (OSTI)

    Not Available

    1991-10-01

    In April 1990 Wright-Patterson Air Force Base (WPAFB) initiated an investigation to evaluate a potential CERCLA removal action to prevent, to the extent practicable, the migration of ground-water contamination in the Mad River Valley Aquifer within and across WPAFB boundaries. The action will be based on a Focused Feasibility Study with an Action Memorandum serving as a decision document that is subject to approval by the Ohio Environmental Protection Agency. The first phase (Phase 1) of this effort involves an investigation of ground-water contamination migrating across the southwest boundary of Area C and across Springfield Pike adjacent to Area B. Task 4 of Phase 1 is a field investigation to collect sufficient additional information to evaluate removal alternatives. The field investigation will provide information in the following specific areas of study: water-level data which will be used to permit calibration of the ground-water flow model to a unique time in history; and ground-water quality data which will be used to characterize the current chemical conditions of ground water.

  5. Recommended Parameter Values for GENII Modeling of Radionuclides in Routine Air and Water Releases

    SciTech Connect (OSTI)

    Snyder, Sandra F.; Arimescu, Carmen; Napier, Bruce A.; Hay, Tristan R.

    2012-11-01

    The GENII v2 code is used to estimate dose to individuals or populations from the release of radioactive materials into air or water. Numerous parameter values are required for input into this code. User-defined parameters cover the spectrum from chemical data, meteorological data, agricultural data, and behavioral data. This document is a summary of parameter values that reflect conditions in the United States. Reasonable regional and age-dependent data is summarized. Data availability and quality varies. The set of parameters described address scenarios for chronic air emissions or chronic releases to public waterways. Considerations for the special tritium and carbon-14 models are briefly addressed. GENIIv2.10.0 is the current software version that this document supports.

  6. Paraho environmental data. Part I. Process characterization. Par II. Air quality. Part III. Water quality

    SciTech Connect (OSTI)

    Heistand, R.N.; Atwood, R.A.; Richardson, K.L.

    1980-06-01

    From 1973 to 1978, Development Engineering, Inc. (DEI), a subsidiary of Paraho Development Corporation, demostrated the Paraho technology for surface oil shale retorting at Anvil Points, Colorado. A considerable amount of environmentally-related research was also conducted. This body of data represents the most comprehensive environmental data base relating to surface retorting that is currently available. In order to make this information available, the DOE Office of Environment has undertaken to compile, assemble, and publish this environmental data. The compilation has been prepared by DEI. This report includes the process characterization, air quality, and water quality categories.

  7. Reversible monolayer-to-crystalline phase transition in amphiphilic silsesquioxane at the air-water interface

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Banerjee, R.; Sanyal, M. K.; Bera, M. K.; Gibaud, A.; Lin, B.; Meron, M.

    2015-02-17

    We report on the counter intuitive reversible crystallisation of two-dimensional monolayer of Trisilanolisobutyl Polyhedral Oligomeric SilSesquioxane (TBPOSS) on water surface using synchrotron x-ray scattering measurements. Amphiphilic TBPOSS form rugged monolayers and Grazing Incidence X-ray Scattering (GIXS) measurements reveal that the in-plane inter-particle correlation peaks, characteristic of two-dimensional system, observed before transition is replaced by intense localized spots after transition. The measured x-ray scattering data of the non-equilibrium crystalline phase on the air-water interface could be explained with a model that assumes periodic stacking of the TBPOSS dimers. These crystalline stacking relaxes upon decompression and the TBPOSS layer retains its initialmore » monolayer state. The existence of these crystals in compressed phase is confirmed by atomic force microscopy measurements by lifting the materials on a solid substrate.« less

  8. Air Conditioning with Magnetic Refrigeration : An Efficient, Green Compact Cooling System Using Magnetic Refrigeration

    SciTech Connect (OSTI)

    2010-09-01

    BEETIT Project: Astronautics is developing an air conditioning system that relies on magnetic fields. Typical air conditioners use vapor compression to cool air. Vapor compression uses a liquid refrigerant to circulate within the air conditioner, absorb the heat, and pump the heat out into the external environment. Astronautics’ design uses a novel property of certain materials, called “magnetocaloric materials”, to achieve the same result as liquid refrigerants. These magnetocaloric materials essentially heat up when placed within a magnetic field and cool down when removed, effectively pumping heat out from a cooler to warmer environment. In addition, magnetic refrigeration uses no ozone-depleting gases and is safer to use than conventional air conditioners which are prone to leaks.

  9. STOMP Sparse Vegetation Evapotranspiration Model for the Water-Air-Energy Operational Mode

    SciTech Connect (OSTI)

    Ward, Anderson L.; White, Mark D.; Freeman, Eugene J.; Zhang, Z. F.

    2005-09-15

    The Water-Air-Energy (WAE) Operational Mode of the Subsurface Transport Over Multiple Phases (STOMP) numerical simulator solves the coupled conservation equations for water mass, air mass, and thermal energy in multiple dimensions. This addendum describes the theory, input file formatting, and application of a soil-vegetation-atmosphere transfer (SVAT) scheme for STOMP that is based on a sparse vegetation evapotranspiration model. The SVAT scheme is implemented as a boundary condition on the upper surface of the computational domain and has capabilities for simulating evaporation from bare surfaces as well as evapotranspiration from sparsely vegetated surfaces populated with single or multiple plant species in response to meteorological forcings. With this extension, the model calculates water mass, air mass and thermal energy across a boundary surface in addition to root-water transport between the subsurface and atmosphere. This mode represents the barrier extension of the WAE mode and is designated as STOMP-WAE-B. Input for STOMP-WAE-B is specified via three input cards and include: atmospheric conditions through the Atmospheric Conditions Card; time-invariant plant species data through the Plant Properties Card; and time varying plant species data through the Boundary Conditions Card. Two optional cards, the Observed Data and UCODE Control Cards allow use of STOMP-WAE with UCODE in an inverse mode to estimate model parameters. STOMP-WAE was validated by solving a number of test problems from the literature that included experimental observations as well as analytical or numerical solutions. Several of the UNSAT-H verification problems are included along with a benchmark simulation derived from a recently published intercode comparison for barrier design tools. Results show that STOMP is able to meet, and in most cases, exceed performance of other commonly used simulation codes without having to resort to may of their simplifying assumptions. Use of the fully coupled STOMP simulator to guide barrier design will result in optimized designs with reduced construction costs; reduced environmental impacts at borrow sites; and minimized post-closure care and monitoring needs, while meeting regulatory requirements.

  10. Experimental investigation on the photovoltaic-thermal solar heat pump air-conditioning system on water-heating mode

    SciTech Connect (OSTI)

    Fang, Guiyin; Hu, Hainan; Liu, Xu

    2010-09-15

    An experimental study on operation performance of photovoltaic-thermal solar heat pump air-conditioning system was conducted in this paper. The experimental system of photovoltaic-thermal solar heat pump air-conditioning system was set up. The performance parameters such as the evaporation pressure, the condensation pressure and the coefficient of performance (COP) of heat pump air-conditioning system, the water temperature and receiving heat capacity in water heater, the photovoltaic (PV) module temperature and the photovoltaic efficiency were investigated. The experimental results show that the mean photovoltaic efficiency of photovoltaic-thermal (PV/T) solar heat pump air-conditioning system reaches 10.4%, and can improve 23.8% in comparison with that of the conventional photovoltaic module, the mean COP of heat pump air-conditioning system may attain 2.88 and the water temperature in water heater can increase to 42 C. These results indicate that the photovoltaic-thermal solar heat pump air-conditioning system has better performances and can stably work. (author)

  11. Tax Credits, Rebates & Savings | Department of Energy

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

    air source, and ductless heat pumps; central air conditioning; ECM motors; and heat pump water heaters. Rebates for air-source heat pumps and central air conditioners...

  12. Tax Credits, Rebates & Savings | Department of Energy

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

    air source, and ductless heat pumps; central air conditioning; ECM motors; and heat pump water heaters. Rebates for air-source heat pumps and central air conditioners vary...

  13. Air conditioning system

    DOE Patents [OSTI]

    Lowenstein, Andrew; Miller, Jeffrey; Gruendeman, Peter; DaSilva, Michael

    2005-02-01

    An air conditioner comprises a plurality of plates arranged in a successively stacked configuration with portions thereof having a spaced apart arrangement, and defining between successive adjacent pairs of plates at the spaced apart portions a first and second series of discrete alternating passages wherein a first air stream is passed through the first series of passages and a second air stream is passed through the second series of passages; and said stacked configuration of plates forming integrally therewith a liquid delivery means for delivering from a source a sufficient quantity of a liquid to the inside surfaces of the first series of fluid passages in a manner which provides a continuous flow of the liquid from a first end to a second end of the plurality of plates while in contact with the first air stream.

  14. Effects of hydrostatic pressure on steelhead survival in air-supersaturated water

    SciTech Connect (OSTI)

    Knittel, M.D.; Chapman, G.A.; Garton, R.R.

    1980-11-01

    Juvenile steelheads (Salmo gairdneri) were placed in cages and suspended at various depths in water supersaturated with air at levels from 120 to 140% of normal atmospheric gas pressure. Survival times of fish held at 10, 50, and 100 cm depth increased with increasing depth at a given level of supersaturation. When the hydrostatic pressure (7.4 mm Hg per 10 cm of water depth) was subtracted from the excess gas pressure (relative to surface barometric pressure) mortality curves (times to 50% mortality versus excess gas pressure) for fish at all three depths essentially coincided. The significant measure of supersaturation appears to be the pressure of dissolved gases in excess of the sum of barometric and hydrostatic pressures. Steelheads held near the surface in supersaturated water for a near-lethal period and then lowered to a depth providing total hydrostatic compensation appeared to recover completely in about 2 hours. The longer fish remained at depth, the longer their survival time when they subsequently were reexposed to surface conditions.

  15. (Environmental investigation of ground water contamination at Wright-Patterson Air Force Base, Ohio)

    SciTech Connect (OSTI)

    Thompson, Bill

    1991-10-01

    In April 1990, Wright-Patterson Air Force Base (WPAFB), initiated an investigation to evaluate a potential Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) removal action to prevent, to the extent practicable, the offsite migration of contaminated ground water from WPAFB. WPAFB retained the services of the Environmental Management Operations (EMO) and its principle subcontractor, International Technology Corporation (IT) to complete Phase 1 of the environmental investigation of ground-water contamination at WPAFB. Phase 1 of the investigation involves the short-term evaluation and potential design for a program to remove ground-water contamination that appears to be migrating across the western boundary of Area C, and across the northern boundary of Area B along Springfield Pike. Primarily, Task 4 of Phase 1 focuses on collection of information at the Area C and Springfield Pike boundaries of WPAFB. This Sampling and Analysis Plan (SAP) has been prepared to assist in completion of the Task 4 field investigation and is comprised of the Quality Assurance Project Plan (QAPP) and the Field Sampling Plan (FSP).

  16. Alliant Energy Interstate Power and Light (Gas)- Residential Energy Efficiency Program

    Broader source: Energy.gov [DOE]

    Customers are eligible for room air conditioners and water heaters through the Appliance Rebate Program. Room air conditioners qualify for a rebate of $25 and water heaters qualify for a rebate o...

  17. Comparative responses of speckled dace and cutthroat trout to air-supersaturated water

    SciTech Connect (OSTI)

    Nebeker, A.V.; Hauck, A.K.; Baker, F.D.; Weitz, S.L.

    1980-11-01

    Speckled dace (Rhinichthys osculus) are more tolerant of air-supersaturated water than adult or juvenile cutthroat trout (Salmo clarki). Speckled dace were tested in concentrations from 110 to 142% saturation and had a 96-hour median lethal concentration (LC50) of 140%, a 7-day LC50 of 137%, and 2-week LC50's of 129 and 131% saturation. The estimated mean threshold concentration, based on time to 50% death (TM50), was 123% saturation. The speckled dace also exhibited consistent external signs of gas bubble disease. Cutthroat trout were tested from 111 to 130% saturation and had 96-hour LC50's of 119 and 120% (adults) and 119 and 119% (juveniles) saturation. Estimated mean threshold concentrations (from TM50 values) were 117% (adults) and 114% (juveniles) saturation. Signs of gas bubble disease exhibited by the cutthroat trout were similar to those seen with other salmonids examined in earlier studies.

  18. Flow conditioner for fuel injector for combustor and method for low-NO.sub.x combustor

    DOE Patents [OSTI]

    Dutta, Partha; Smith, Kenneth O.; Ritz, Frank J.

    2013-09-10

    An injector for a gas turbine combustor including a catalyst coated surface forming a passage for feed gas flow and a channel for oxidant gas flow establishing an axial gas flow through a flow conditioner disposed at least partially within an inner wall of the injector. The flow conditioner includes a length with an interior passage opening into upstream and downstream ends for passage of the axial gas flow. An interior diameter of the interior passage smoothly reduces and then increases from upstream to downstream ends.

  19. Tax Credits, Rebates & Savings | Department of Energy

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

    Multifamily Residential Savings Category: Water Heaters, Lighting, Lighting ControlsSensors, Chillers, Furnaces, Boilers, Heat Pumps, Air conditioners, Heat recovery,...

  20. Tax Credits, Rebates & Savings | Department of Energy

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

    Savings Category: Equipment Insulation, Water Heaters, Lighting, Lighting ControlsSensors, Chillers, Furnaces, Boilers, Heat Pumps, Air conditioners, Caulking...

  1. Tax Credits, Rebates & Savings | Department of Energy

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

    Clothes Washers, RefrigeratorsFreezers, Water Heaters, Lighting, Lighting ControlsSensors, Chillers, Furnaces, Boilers, Heat Pumps, Air conditioners, Caulking...

  2. Tax Credits, Rebates & Savings | Department of Energy

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

    Construction, Industrial Savings Category: Dishwasher, Equipment Insulation, Water Heaters, Lighting, Lighting ControlsSensors, Chillers, Air conditioners, Heat...

  3. Tax Credits, Rebates & Savings | Department of Energy

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

    Multifamily Residential Savings Category: Geothermal Heat Pumps, Water Heaters, Lighting, Heat Pumps, Air conditioners, Programmable Thermostats, CaulkingWeather-stripping,...

  4. Tax Credits, Rebates & Savings | Department of Energy

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

    Daylighting, Clothes Washers, Dishwasher, RefrigeratorsFreezers, Dehumidifiers, Ceiling Fan, Water Heaters, Furnaces, Boilers, Heat Pumps, Air conditioners, Caulking...

  5. Tax Credits, Rebates & Savings | Department of Energy

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

    Category: Clothes Washers, Dishwasher, RefrigeratorsFreezers, Dehumidifiers, Ceiling Fan, Water Heaters, Lighting, Furnaces, Boilers, Heat Pumps, Air conditioners, Motors,...

  6. Tax Credits, Rebates & Savings | Department of Energy

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

    Category: Clothes Washers, Dishwasher, RefrigeratorsFreezers, Dehumidifiers, Ceiling Fan, Water Heaters, Lighting, Chillers, Furnaces, Boilers, Heat Pumps, Air conditioners,...

  7. Tax Credits, Rebates & Savings | Department of Energy

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

    installation of efficient lighting fixtures, air conditioners, heat pumps, water heaters, central electric thermal sto... Eligibility: Commercial, Industrial Savings Category:...

  8. Tax Credits, Rebates & Savings | Department of Energy

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

    Ceiling Fan, Equipment Insulation, Water Heaters, Lighting, Lighting ControlsSensors, Furnaces, Boilers, Heat Pumps, Air conditioners, Heat recovery, Programmable...

  9. Tax Credits, Rebates & Savings | Department of Energy

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

    Wind (All), Biomass, Hydroelectric, Geothermal Heat Pumps, Combined Heat & Power, Water Heaters, Lighting, Furnaces, Heat Pumps, Air conditioners, Caulking...

  10. National Grid (Electric) - Residential Energy Efficiency Incentive...

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

    Construction Residential Multifamily Residential Low Income Residential Savings Category RefrigeratorsFreezers Dehumidifiers Water Heaters Lighting Heat Pumps Air conditioners...

  11. Tax Credits, Rebates & Savings | Department of Energy

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

    Water Heaters, Lighting, Lighting ControlsSensors, Chillers, Furnaces, Boilers, Heat Pumps, Air conditioners, Heat recovery, Programmable Thermostats, Caulking...

  12. Tax Credits, Rebates & Savings | Department of Energy

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

    Federal Government Savings Category: Equipment Insulation, Water Heaters, Lighting, Lighting ControlsSensors, Chillers, Furnaces, Boilers, Heat Pumps, Air conditioners,...

  13. Tax Credits, Rebates & Savings | Department of Energy

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

    Category: Biomass, Water Heaters, Furnaces, Boilers, Heat Pumps, Air conditioners, Building Insulation, Windows, Roofs, Other EE Community Energy Education Management...

  14. Tax Credits, Rebates & Savings | Department of Energy

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

    Heat Pumps, Air conditioners, Programmable Thermostats, Windows, Other EE, Vending Machine Controls, Tankless Water Heater Marshall Municipal Utilities- Commercial Energy...

  15. Tax Credits, Rebates & Savings | Department of Energy

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

    web site... Eligibility: Commercial, Industrial Savings Category: Equipment Insulation, Water Heaters, Lighting, Lighting ControlsSensors, Chillers, Air conditioners,...

  16. Tax Credits, Rebates & Savings | Department of Energy

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

    RefrigeratorsFreezers, Dehumidifiers, Water Heaters, Heat Pumps, Air conditioners Reading Municipal Light Department- Residential Energy Star Appliance Rebate Program...

  17. Tax Credits, Rebates & Savings | Department of Energy

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

    Freezers, Dehumidifiers, Ceiling Fan, Water Heaters, Lighting, Lighting ControlsSensors, Furnaces, Boilers, Heat Pumps, Air conditioners, Programmable Thermostats, Caulking...

  18. Tax Credits, Rebates & Savings | Department of Energy

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

    Thermal, Daylighting, Clothes Washers, Dishwasher, RefrigeratorsFreezers, Dehumidifiers, Water Heaters, Lighting, Heat Pumps, Air conditioners, Comprehensive MeasuresWhole...

  19. Tax Credits, Rebates & Savings | Department of Energy

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

    Eligibility: Residential, Multifamily Residential Savings Category: Geothermal Heat Pumps, Water Heaters, Lighting, Heat Pumps, Air conditioners, Programmable Thermostats,...

  20. Tax Credits, Rebates & Savings | Department of Energy

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

    Multifamily Residential, Low Income Residential Savings Category: Clothes Washers, Dishwasher, RefrigeratorsFreezers, Water Heaters, Furnaces, Air conditioners, Caulking...

  1. Tax Credits, Rebates & Savings | Department of Energy

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

    Freezers, Water Heaters, Heat Pumps, Air conditioners, Motors, Other EE, LED Lighting Energy Optimization (Electric)- Residential Efficiency Program Energy Optimization...

  2. HEATING, AIR-CONDITIONING AND REFRIGERATION DISTRIBUTORS INTERNATIONAL

    Energy Savers [EERE]

    (HARDI) | Department of Energy HEATING, AIR-CONDITIONING AND REFRIGERATION DISTRIBUTORS INTERNATIONAL (HARDI) HEATING, AIR-CONDITIONING AND REFRIGERATION DISTRIBUTORS INTERNATIONAL (HARDI) OE Framework Document and Stakeholder Meeting regarding the Enforcement of the updated Energy Conservation Standards for Air Conditioners, Furnaces and Heat Pumps. PDF icon DOE EX Parte Memo.pdf More Documents & Publications Ex Parte Memo on CAC/Dry Charged Units 3rd Semi-Annual Report to Congress on

  3. Heating, Ventilation, and Air Conditioning Projects | Department of Energy

    Office of Environmental Management (EM)

    Heating, Ventilation, and Air Conditioning Projects Heating, Ventilation, and Air Conditioning Projects Credit: Oak Ridge National Lab 13-Energy Efficiency Ratio Window Air Conditioner Lead Performer: Oak Ridge National Laboratory - Oak Ridge, TN Partners: General Electric - Fairfield, CT Three new/under-utilized ground loop designs being evaluated for their ground loop cost reduction potential<br /> Credit: Oak Ridge National Lab Advanced Ground Source Heat Pump Technology for

  4. Air-Con International: Noncompliance Determination and Proposed Penalty (2010-SE-0301)

    Broader source: Energy.gov [DOE]

    DOE issued a Notice of Noncompliance Determination to Air-Con International finding that a variety of central air conditioners and air conditioning heat pumps distributed under the Air-Con private label do not comport with the energy conservation standards. DOE also alleged in a Notice of Proposed Civil Penalty that Air-Con imported and distributed the noncompliant products in the U.S.

  5. Breakthrough Video: Desiccant Enhanced Evaporative Air Conditioning

    SciTech Connect (OSTI)

    2012-01-01

    Researchers at the National Renewable Energy Laboratory (NREL) invented a breakthrough technology that improves air conditioning in a novel waywith heat. NREL combined desiccant materials, which remove moisture from the air using heat, and advanced evaporative technologies to develop a cooling unit that uses 90% less electricity and up to 80% less total energy than traditional air conditioning (AC). This solution, called the desiccant enhanced evaporative air conditioner (DEVAP), also controls humidity more effectively to improve the comfort of people in buildings.

  6. Consistency in the Sum Frequency Generation Intensity and Phase Vibrational Spectra of the Air/Neat Water Interface

    SciTech Connect (OSTI)

    Feng, Ranran; Guo, Yuan; Lu, Rong; Velarde Ruiz Esparza, Luis A.; Wang, Hongfei

    2011-06-16

    Tremendous progresses have been made in quantitative understanding and interpretation of the hydrogen bonding and ordering structure at the air/water interface since the first sum-frequency generation vibrational spectroscopy (SFG-VS) measurement on the neat air/water interface by Q. Du et al. in 1993 (PRL, 70, 2312-2316, 1993.). However, there are still disagreements and controversies on the consistency between the different experiment measurements and the theoretical computational results. One critical problem lies in the inconsistency between the SFG-VS intensity measurements and the recently developed SFG-VS phase spectra measurements of the neat air/water interface, which has inspired various theoretical efforts trying to understand them. In this report, the reliability of the SFG-VS intensity spectra of the neat air/water interface is to be quantitatively examined, and the sources of possible inaccuracies in the SFG-VS phase spectral measurement is to be discussed based on the non-resonant SHG phase measurement results. The conclusion is that the SFG-VS intensity spectra data from different laboratories are now quantitatively converging and in agreement with each other, and the possible inaccuracies and inconsistencies in the SFG-VS phase spectra measurements need to be carefully examined against the properly corrected phase standard.

  7. Air-to-Water Heat Pumps With Radiant Delivery in Low-Load Homes

    SciTech Connect (OSTI)

    Backman, C.; German, A.; Dakin, B.; Springer, D.

    2013-12-01

    Space conditioning represents nearly 50% of average residential household energy consumption, highlighting the need to identify alternative cost-effective, energy-efficient cooling and heating strategies. As homes are better built, there is an increasing need for strategies that are particularly well suited for high performance, low load homes. ARBI researchers worked with two test homes in hot-dry climates to evaluate the in-situ performance of air-to-water heat pump (AWHP) systems, an energy efficient space conditioning solution designed to cost-effectively provide comfort in homes with efficient, safe, and durable operation. Two monitoring projects of test houses in hot-dry climates were initiated in 2010 to test this system. Both systems were fully instrumented and have been monitored over one year to capture complete performance data over the cooling and heating seasons. Results are used to quantify energy savings, cost-effectiveness, and system performance using different operating modes and strategies. A calibrated TRNSYS model was developed and used to evaluate performance in various climate regions. This strategy is most effective in tight, insulated homes with high levels of thermal mass (i.e. exposed slab floors).

  8. Air-to-Water Heat Pumps With Radiant Delivery in Low-Load Homes

    SciTech Connect (OSTI)

    Backman, C.; German, A.; Dakin, B.; Springer, D.

    2013-12-01

    Space conditioning represents nearly 50% of average residential household energy consumption, highlighting the need to identify alternative cost-effective, energy-efficient cooling and heating strategies. As homes are better built, there is an increasing need for strategies that are particularly well suited for high performance, low load homes. ARBI researchers worked with two test homes in hot-dry climates to evaluate the in-situ performance of air-to-water heat pump systems, an energy efficient space conditioning solution designed to cost-effectively provide comfort in homes with efficient, safe, and durable operation. Two monitoring projects of test houses in hot-dry climates were initiated in 2010 to test this system. Both systems were fully instrumented and have been monitored over one year to capture complete performance data over the cooling and heating seasons. Results are used to quantify energy savings, cost-effectiveness, and system performance using different operating modes and strategies. A calibrated TRNSYS model was developed and used to evaluate performance in various climate regions. This strategy is most effective in tight, insulated homes with high levels of thermal mass (i.e. exposed slab floors).

  9. Correlation of Oil-Water and Air-Water Contact Angles of Diverse Silanized Surfaces and Relationship to Fluid Interfacial Tensions

    SciTech Connect (OSTI)

    Grate, Jay W.; Dehoff, Karl J.; Warner, Marvin G.; Pittman, Jonathan W.; Wietsma, Thomas W.; Zhang, Changyong; Oostrom, Martinus

    2012-02-24

    The use of air-water, {Theta}{sub wa}, or air-liquid contact angles is customary in surface science, while oil-water contact angles {Theta}{sub ow}, are of paramount importance in subsurface multiphase flow phenomena including petroleum reocovery, nonaqueous phase liquid fate and transport, and geological carbon sequestration. In this paper we determine both the air-water and oil-water contact angles of silica surfaces modified with a diverse selection of silanes, using hexadecane as the oil. The silanes included alkylsilanes, alkylarylsilanes, and silanes with alkyl or aryl groups that are functionalized with heteroatoms such as N, O, and S. These silanes yielded surfaces with wettabilities from water-wet to oil wet, including specific silanized surfaces functionalized with heteroatoms that yield intermediate wet surfaces. The oil-water contact angles for clean and silanized surfaces, excluding one partially fluorinated surface, correlate linearly with air-water contact angles with a slope of 1.41 (R = 0.981, n = 13). These data were used to examine a previously untested theoretical treatment relating air-water and oil-water contact angles in terms of fluid interfacial energies. Plotting the cosines of these contact angles against one another, we obtain a linear relationship in excellent agreement with the theoretical treatment; the data fit cos {Theta}{sub ow} = 0.667 cos {Theta}{sub ow} + 0.384 (R = 0.981, n = 13), intercepting cos {Theta}{sub ow} = -1 at -0.284. The theoretical slope, based on the fluid interfacial tensions {Theta}{sub wa}, {Theta}{sub ow}, and {Theta}{sub oa}, is 0.67. We also demonstrate how silanes can be used to alter the wettability of the interior of a pore network micromodel device constructed in silicon/silica with a glass cover plate. Such micromodels are used to study multiphase flow phenomena. The contact angle of the resulting interior was determined in situ. An intermediate wet micromodel gave a contact angle in excellent agreement with that obtained on an open planar silica surface using the same silane.

  10. Analysis of Efficiency Standards for Air Conditioners, Heat Pumps, and Other Products

    Reports and Publications (EIA)

    2002-01-01

    A series of analyses showing the impacts of each of the selected provisions of the bills on energy supply, demand, and prices, macroeconomic variables where feasible, import dependence, and emissions.

  11. Ex Parte Communication on Central Air-Conditioner Test Procedure- ICM Issues

    Broader source: Energy.gov [DOE]

    On October 8, 2015, AHRI staff and Independent Coil Manufacturer (ICM) Representatives met with a representative from the Department of Energy (DOE) to discuss proposed amended test procedures for...

  12. Tax Credits, Rebates & Savings | Department of Energy

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

    pumps; central air conditioning; ECM motors; and heat pump water heaters. Rebates for air-source heat pumps and central air conditioners vary based upon system efficiency. All...

  13. Burlington Electric Department - Residential Energy Efficiency...

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

    Lighting Air conditioners Compressed air Tankless Water Heater Maximum Rebate 3200 max incentive for air compressors Program Info Sector Name Utility Administrator Burlington...

  14. Tax Credits, Rebates & Savings | Department of Energy

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

    with... Eligibility: Residential Savings Category: Solar Water Heat, Solar Space Heat, Water Heaters, Furnaces, Heat Pumps, Air conditioners, DuctAir sealing, Building...

  15. Pacific Power - Residential Energy Efficiency Rebate Programs...

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

    up to 35 Dishwasher: 20 Freezer: 20 Room Air Conditioner: 25 Water Heaters: 75 Heat Pump Water Heater: 150 Refrigerator Recycling: 30 Central Air Conditioning: 250...

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

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

    Water Heaters Chillers Heat Pumps Air conditioners Heat recovery Compressed air Motor VFDs Agricultural Equipment CustomOthers pending approval Other EE Tankless Water...

  17. Optimization of hybrid-water/air-cooled condenser in an enhanced...

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

    Project objective: To improve the efficiency and output variability of geothermal-based ORC power production systems with minimal water consumption by deploying: 1) a hybrid-water...

  18. Evaluating Water Vapor in the NCAR CAM3 Climate Model with RRTMG/McICA using Modeled and Observed AIRS Spectral Radiances

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

    Water Vapor in the NCAR CAM3 Climate Model with RRTMG/McICA using Modeled and Observed AIRS Spectral Radiances Michael J. Iacono, Atmospheric and Environmental Research, Inc., 131 Hartwell Avenue, Lexington, MA 02421 USA 1. Overview Objectives: * Evaluate water vapor and temperature simulation in two versions of CAM3 by comparing modeled and observed cloud-cleared AIRS spectral radiances. * Use spectral differences to verify comparisons between modeled water vapor and temperature and observed

  19. Method and apparatus for analog signal conditioner for high speed, digital x-ray spectrometer

    DOE Patents [OSTI]

    Warburton, W.K.; Hubbard, B.

    1999-02-09

    A signal processing system which accepts input from an x-ray detector-preamplifier and produces a signal of reduced dynamic range for subsequent analog-to-digital conversion is disclosed. The system conditions the input signal to reduce the number of bits required in the analog-to-digital converter by removing that part of the input signal which varies only slowly in time and retaining the amplitude of the pulses which carry information about the x-rays absorbed by the detector. The parameters controlling the signal conditioner`s operation can be readily supplied in digital form, allowing it to be integrated into a feedback loop as part of a larger digital x-ray spectroscopy system. 13 figs.

  20. Evaluation of an ambient air sampling system for tritium (as tritiated water vapor) using silica gel adsorbent columns

    SciTech Connect (OSTI)

    Patton, G.W.; Cooper, A.T.; Tinker, M.R.

    1995-08-01

    Ambient air samples for tritium analysis (as the tritiated water vapor [HTO] content of atmospheric moisture) are collected for the Hanford Site Surface Environmental Surveillance Project (SESP) using the solid adsorbent silica gel. The silica gel has a moisture sensitive indicator which allows for visual observation of moisture movement through a column. Despite using an established method, some silica gel columns showed a complete change in the color indicator for summertime samples suggesting that breakthrough had occurred; thus a series of tests was conducted on the sampling system in an environmental chamber. The purpose of this study was to determine the maximum practical sampling volume and overall collection efficiency for water vapor collected on silica gel columns. Another purpose was to demonstrate the use of an impinger-based system to load water vapor onto silica gel columns to provide realistic analytical spikes and blanks for the Hanford Site SESP. Breakthrough volumes (V{sub b}) were measured and the chromatographic efficiency (expressed as the number of theoretical plates [N]) was calculated for a range of environmental conditions. Tests involved visual observations of the change in the silica gel`s color indicator as a moist air stream was drawn through the column, measurement of the amount of a tritium tracer retained and then recovered from the silica gel, and gravimetric analysis for silica gel columns exposed in the environmental chamber.

  1. NREL's Energy-Saving Technology for Air Conditioning Cuts Peak Power Loads Without Using Harmful Refrigerants (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-07-01

    This fact sheet describes how the DEVAP air conditioner was invented, explains how the technology works, and why it won an R&D 100 Award. Desiccant-enhanced evaporative (DEVAP) air-conditioning will provide superior comfort for commercial buildings in any climate at a small fraction of the electricity costs of conventional air-conditioning equipment, releasing far less carbon dioxide and cutting costly peak electrical demand by an estimated 80%. Air conditioning currently consumes about 15% of the electricity generated in the United States and is a major contributor to peak electrical demand on hot summer days, which can lead to escalating power costs, brownouts, and rolling blackouts. DEVAP employs an innovative combination of air-cooling technologies to reduce energy use by up to 81%. DEVAP also shifts most of the energy needs to thermal energy sources, reducing annual electricity use by up to 90%. In doing so, DEVAP is estimated to cut peak electrical demand by nearly 80% in all climates. Widespread use of this cooling cycle would dramatically cut peak electrical loads throughout the country, saving billions of dollars in investments and operating costs for our nation's electrical utilities. Water is already used as a refrigerant in evaporative coolers, a common and widely used energy-saving technology for arid regions. The technology cools incoming hot, dry air by evaporating water into it. The energy absorbed by the water as it evaporates, known as the latent heat of vaporization, cools the air while humidifying it. However, evaporative coolers only function when the air is dry, and they deliver humid air that can lower the comfort level for building occupants. And even many dry climates like Phoenix, Arizona, have a humid season when evaporative cooling won't work well. DEVAP extends the applicability of evaporative cooling by first using a liquid desiccant-a water-absorbing material-to dry the air. The dry air is then passed to an indirect evaporative cooling stage, in which the incoming air is in thermal contact with a moistened surface that evaporates the water into a separate air stream. As the evaporation cools the moistened surface, it draws heat from the incoming air without adding humidity to it. A number of cooling cycles have been developed that employ indirect evaporative cooling, but DEVAP achieves a superior efficiency relative to its technological siblings.

  2. Manufacturing of Protected Lithium Electrodes for Advanced Lithium-Air, Lithium-Water & Lithium-Sulfur

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

    Steven J. Visco, CEO & CTO, PolyPlus Battery Company U.S. DOE Advanced Manufacturing Office Peer Review Meeting Washington, D.C. May 28-29, 2015 Manufacturing of Protected Lithium Electrodes for Advanced Lithium-Air, Lithium-Water & Lithium-Sulfur Batteries Contract Number EE0005757 PolyPlus/Corning/Johnson Controls Inc. Project Period: 9/01/2012 to 8/31/2015 This presentation does not contain any proprietary, confidential, or otherwise restricted information. Project Objective The

  3. Measure Guideline. Combination Forced-Air Space and Tankless Domestic Hot Water Heating Systems

    SciTech Connect (OSTI)

    Rudd, Armin

    2012-08-01

    This document describes design and application guidance for combination space and tankless domestic hot water heating systems (combination systems) used in residential buildings, based on field evaluation, testing, and industry meetings conducted by Building Science Corporation. As residential building enclosure improvements continue to drive heating loads down, using the same water heating equipment for both space heating and domestic water heating becomes attractive from an initial cost and space-saving perspective. This topic is applicable to single- and multi-family residential buildings, both new and retrofitted.

  4. Measure Guideline: Combination Forced-Air Space and Tankless Domestic Hot Water Heating Systems

    SciTech Connect (OSTI)

    Rudd, A.

    2012-08-01

    This document describes design and application guidance for combination space and tankless domestic hot water heating systems (combination systems) used in residential buildings, based on field evaluation, testing, and industry meetings conducted by Building Science Corporation. As residential building enclosure improvements continue to drive heating loads down, using the same water heating equipment for both space heating and domestic water heating becomes attractive from an initial cost and space-saving perspective. This topic is applicable to single- and multi-family residential buildings, both new and retrofitted.

  5. Tax Credits, Rebates & Savings | Department of Energy

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

    third-party ow... Eligibility: Schools Savings Category: Solar Water Heat, Solar Photovoltaics, Wind (All), Biomass, Equipment Insulation, Air conditioners, DuctAir sealing,...

  6. Tax Credits, Rebates & Savings | Department of Energy

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

    Residential, InstallersContractors Savings Category: Solar Photovoltaics, Geothermal Heat Pumps, Water Heaters, Heat Pumps, Air conditioners, Programmable Thermostats, DuctAir...

  7. Tax Credits, Rebates & Savings | Department of Energy

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

    include efficient central air conditioners, central air-source heat pumps, electric heat pump water heaters, furnace blower fans, programmable thermostats, refrigerator...

  8. Tax Credits, Rebates & Savings | Department of Energy

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

    measures, insulation... Eligibility: Residential Savings Category: Geothermal Heat Pumps, Water Heaters, Heat Pumps, Air conditioners, CaulkingWeather-stripping, DuctAir sealing,...

  9. Tax Credits, Rebates & Savings | Department of Energy

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

    insulation... Eligibility: Residential Savings Category: Geothermal Heat Pumps, Water Heaters, Heat Pumps, Air conditioners, CaulkingWeather-stripping, DuctAir sealing,...

  10. Tax Credits, Rebates & Savings | Department of Energy

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

    Residential Savings Category: Clothes Washers, Dishwasher, RefrigeratorsFreezers, Water Heaters, Lighting, Heat Pumps, Air conditioners, DuctAir sealing, Building...

  11. Tax Credits, Rebates & Savings | Department of Energy

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

    RefrigeratorsFreezers, Ceiling Fan, Water Heaters, Lighting, Furnaces, Boilers, Heat Pumps, Air conditioners, CaulkingWeather-stripping, DuctAir sealing, Building...

  12. Tax Credits, Rebates & Savings | Department of Energy

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

    Heat Pumps, Clothes Washers, Dehumidifiers, Water Heaters, Lighting, Furnaces, Boilers, Heat Pumps, Air conditioners, CaulkingWeather-stripping, DuctAir sealing, Building...

  13. Tax Credits, Rebates & Savings | Department of Energy

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

    Dishwasher, RefrigeratorsFreezers, Equipment Insulation, Water Heaters, Lighting, Heat Pumps, Air conditioners, DuctAir sealing, Building Insulation, Windows, Custom...

  14. Tax Credits, Rebates & Savings | Department of Energy

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

    Clothes Washers, Dishwasher, RefrigeratorsFreezers, Equipment Insulation, Water Heaters, Heat Pumps, Air conditioners, CaulkingWeather-stripping, DuctAir sealing, Building...

  15. Tax Credits, Rebates & Savings | Department of Energy

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

    Contractors Savings Category: Geothermal Heat Pumps, Water Heaters, Furnaces, Boilers, Heat Pumps, Air conditioners, Programmable Thermostats, DuctAir sealing, Windows, Custom...

  16. Tax Credits, Rebates & Savings | Department of Energy

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

    ranges from 6... Eligibility: Residential Savings Category: Solar Photovoltaics, Water Heaters, Furnaces, Heat Pumps, Air conditioners, DuctAir sealing, Building...

  17. Tax Credits, Rebates & Savings | Department of Energy

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

    RefrigeratorsFreezers, Water Heaters, Lighting, Boilers, Air conditioners, CaulkingWeather-stripping, DuctAir sealing, Building Insulation, Windows, Other EE Gross Receipts...

  18. Tax Credits, Rebates & Savings | Department of Energy

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

    Category: Geothermal Heat Pumps, Clothes Washers, RefrigeratorsFreezers, Ceiling Fan, Water Heaters, Lighting, Chillers, Heat Pumps, Air conditioners, DuctAir sealing,...

  19. Tax Credits, Rebates & Savings | Department of Energy

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

    Savings Category: Clothes Washers, Dishwasher, RefrigeratorsFreezers, Ceiling Fan, Water Heaters, Lighting, Heat Pumps, Air conditioners, DuctAir sealing, Building...

  20. Tax Credits, Rebates & Savings | Department of Energy

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

    Insulation, Water Heaters, Lighting, Heat Pumps, Air conditioners, DuctAir sealing, Building Insulation, Windows, CustomOthers pending approval, Other EE Energy Conservation...

  1. Tax Credits, Rebates & Savings | Department of Energy

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

    Savings Category: Geothermal Heat Pumps, Water Heaters, Lighting, Lighting ControlsSensors, Chillers, Furnaces, Boilers, Heat Pumps, Air conditioners, Compressed air, Energy...

  2. Tax Credits, Rebates & Savings | Department of Energy

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

    be the vested owner of the property where... Eligibility: Residential Savings Category: Water Heaters, Heat Pumps, Air conditioners, DuctAir sealing, Building Insulation,...

  3. Tax Credits, Rebates & Savings | Department of Energy

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

    the energy efficiency of homes, appliances and equipment. Rebates are available for water heaters, geothermal heat pumps, air-source heat pumps, central air conditioners, ETS...

  4. Tax Credits, Rebates & Savings | Department of Energy

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

    Local Government, Residential, Agricultural Savings Category: Geothermal Heat Pumps, Water Heaters, Heat Pumps, Air conditioners, CaulkingWeather-stripping, DuctAir sealing,...

  5. Otter Tail Power Company - Dollar Smart Financing Program | Department...

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

    Residential Savings Category Geothermal Heat Pumps RefrigeratorsFreezers Water Heaters Lighting Furnaces Heat Pumps Air conditioners Heat recovery DuctAir sealing Motors Motor...

  6. Tax Credits, Rebates & Savings | Department of Energy

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

    RefrigeratorsFreezers, Lighting, Heat Pumps, Air conditioners, DuctAir sealing, Building Insulation, Windows, Other EE, Pool Pumps Pasadena Water and Power- Residential...

  7. Tax Credits, Rebates & Savings | Department of Energy

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

    Water Heaters, Heat Pumps, Air conditioners, DuctAir sealing, Building Insulation Jackson County REMC- Energy Efficiency Rebate Program Jackson County Rural Electric...

  8. Tax Credits, Rebates & Savings | Department of Energy

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

    Water Heaters, Heat Pumps, Air conditioners, DuctAir sealing, Building Insulation, Windows, Roofs, Other EE, Reflective Roofs Small Business Energy Loan Program The maximum...

  9. Tax Credits, Rebates & Savings | Department of Energy

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

    Water Heaters, Lighting, Heat Pumps, Air conditioners, Programmable Thermostats, Energy Mgmt. SystemsBuilding Controls, DuctAir sealing, Building Insulation, Other EE,...

  10. Tax Credits, Rebates & Savings | Department of Energy

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

    Water Heaters, Lighting, Chillers, Furnaces, Boilers, Heat Pumps, Air conditioners, Heat recovery, CaulkingWeather-stripping, DuctAir sealing, Building Insulation, Windows,...

  11. Tax Credits, Rebates & Savings | Department of Energy

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

    cooling equipment. Rebates are available for energy efficiency water heaters; air-source, dual fuel, and geothermal heat pumps; central air conditioners; and electric thermal...

  12. Tax Credits, Rebates & Savings | Department of Energy

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

    Water Heaters, Lighting, Chillers, Furnaces, Boilers, Heat Pumps, Air conditioners, Heat recovery, DuctAir sealing, Building Insulation, Windows, Doors, Insulation CaliforniaFIRST...

  13. Alliant Energy Interstate Power and Light (Electric) - Business...

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

    Water Heaters Lighting Lighting ControlsSensors Chillers Heat Pumps Air conditioners Programmable Thermostats CaulkingWeather-stripping DuctAir sealing Building Insulation...

  14. Tax Credits, Rebates & Savings | Department of Energy

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

    Water Heaters, Lighting, Heat Pumps, Air conditioners, DuctAir sealing, LED Lighting New Ulm Public Utilities- Energy Efficiency Rebate Program In addition to equipment...

  15. Tax Credits, Rebates & Savings | Department of Energy

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

    Power and Light (Gas)- Residential Energy Efficiency Program Customers are eligible for room air conditioners and water heaters through the Appliance Rebate Program. Room air...

  16. Missouri River Energy Services (23 Member Cooperatives) - Business...

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

    Savings Category Geothermal Heat Pumps Water Heaters Lighting Lighting ControlsSensors Chillers Furnaces Boilers Heat Pumps Air conditioners Compressed air Programmable...

  17. Mass transfer of volatile organic compounds from drinking water to indoor air: The role of residential dishwashers

    SciTech Connect (OSTI)

    Howard-Reed, C.; Corsi, R.L.; Moya, J.

    1999-07-01

    Contaminated tap water may be a source of volatile organic compounds (VOCs) in residential indoor air. To better understand the extent and impact of chemical emissions from this source, a two-phase mass balance model was developed based on mass transfer kinetics between each phase. Twenty-nine experiments were completed using a residential dishwasher to determine model parameters. During each experiment, inflow water was spiked with a cocktail of chemical tracers with a wide range of physicochemical properties. In each case, the effects of water temperature, detergent, and dish-loading pattern on chemical stripping efficiencies and mass transfer coefficients were determined. Dishwasher headspace ventilation rates were also measured using an isobutylene tracer gas. Chemical stripping efficiencies for a single cycle ranged from 18% to 55% for acetone, from 96% to 98% for toluene, and from 97% to 98% for ethylbenzene and were consistently 100% for cyclohexane. Experimental results indicate that dishwashers have a relatively low but continuous ventilation rate that results in significant chemical storage within the headspace of the dishwasher. In conjunction with relatively high mass transfer coefficients, low ventilation rates generally lead to emissions that are limited by equilibrium conditions after approximately 1--2 min of dishwasher operation.

  18. Tax Credits, Rebates & Savings | Department of Energy

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

    Residential Savings Category: Solar Water Heat, Solar Thermal Electric, Solar Pool Heating, RefrigeratorsFreezers, Water Heaters, Heat Pumps, Air conditioners, Heat...

  19. Tax Credits, Rebates & Savings | Department of Energy

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

    Freezers, Dehumidifiers, Ceiling Fan, Water Heaters, Lighting, Lighting ControlsSensors, Chillers, Heat Pumps, Air conditioners, Other EE, Tankless Water Heater NSTAR...

  20. Tax Credits, Rebates & Savings | Department of Energy

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

    Space Heat, Solar Photovoltaics, Air conditioners, Windows, Doors, Other EE McMinnville Water & Light- Conservation Service Loan Program McMinnville Water & Light offers...

  1. Tax Credits, Rebates & Savings | Department of Energy

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

    affordable, low-interest loans with... Eligibility: Residential Savings Category: Solar Water Heat, Solar Space Heat, Water Heaters, Furnaces, Heat Pumps, Air conditioners, Duct...

  2. Tax Credits, Rebates & Savings | Department of Energy

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

    Water Heat, Solar Space Heat, Solar Photovoltaics, Wind (All), Biomass, Geothermal Heat Pumps, Water Heaters, Furnaces, Boilers, Heat Pumps, Air conditioners, Programmable...

  3. Tax Credits, Rebates & Savings | Department of Energy

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

    Solar Water Heat, Biomass, Geothermal Heat Pumps, Combined Heat & Power, Water Heaters, Lighting, Furnaces, Air conditioners, Heat recovery, Steam-system upgrades, Energy Mgmt....

  4. Tax Credits, Rebates & Savings | Department of Energy

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

    Government Savings Category: Solar Water Heat, Biomass, Geothermal Heat Pumps, Combined Heat & Power, Water Heaters, Lighting, Furnaces, Air conditioners, Heat recovery,...

  5. Tax Credits, Rebates & Savings | Department of Energy

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

    and geothermal heat pumps, central air conditioners, electric water heaters and heat pump water heaters. All rebates will be listed as a billing credit on the member's...

  6. Tax Credits, Rebates & Savings | Department of Energy

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

    Eligibility: Residential Savings Category: Solar Water Heat, Solar Thermal Electric, Solar Pool Heating, RefrigeratorsFreezers, Water Heaters, Heat Pumps, Air conditioners,...

  7. Tax Credits, Rebates & Savings | Department of Energy

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

    Thermal Electric (2) Apply Solar Thermal Electric filter Solar Water Heat (2) Apply Solar Water Heat filter Wind (Small) (2) Apply Wind (Small) filter Air conditioners (1) Apply...

  8. Tax Credits, Rebates & Savings | Department of Energy

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

    Solar Photovoltaics (7) Apply Solar Photovoltaics filter Solar Water Heat (7) Apply Solar Water Heat filter Wind (Small) (7) Apply Wind (Small) filter Air conditioners (6) Apply...

  9. Tax Credits, Rebates & Savings | Department of Energy

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

    Savings Category: Solar Water Heat, Biomass, Geothermal Heat Pumps, Combined Heat & Power, Water Heaters, Lighting, Furnaces, Air conditioners, Heat recovery, Steam-system...

  10. Town of Carrboro - Worthwhile Investments Save Energy (WISE)...

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

    Nonprofit Savings Category Solar Water Heat Solar Photovoltaics Water Heaters Lighting Lighting ControlsSensors Heat Pumps Air conditioners Programmable Thermostats Building...

  11. Final report on the oxidation of energetic materials in supercritical water. Final Air Force report

    SciTech Connect (OSTI)

    Buelow, S.J.; Allen, D.; Anderson, G.K.

    1995-04-03

    The objective of this project was to determine the suitability of oxidation in supercritical fluids (SCO), particularly water (SCWO), for disposal of propellants, explosives, and pyrotechnics (PEPs). The SCO studies of PEPs addressed the following issues: The efficiency of destruction of the substrate. The products of destruction contained in the effluents. Whether the process can be conducted safely on a large scale. Whether energy recovery from the process is economically practicable. The information essential for process development and equipment design was also investigated, including issues such as practical throughput of explosives through a SCWO reactor, reactor materials and corrosion, and models for process design and optimization.

  12. Method and apparatus for analog signal conditioner for high speed, digital x-ray spectrometer

    DOE Patents [OSTI]

    Warburton, William K. (1300 Mills St., Menlo Park, CA 94025); Hubbard, Bradley (Santa Cruz, CA)

    1999-01-01

    A signal processing system which accepts input from an x-ray detector-preamplifier and produces a signal of reduced dynamic range for subsequent analog-to-digital conversion. The system conditions the input signal to reduce the number of bits required in the analog-to-digital converter by removing that part of the input signal which varies only slowly in time and retaining the amplitude of the pulses which carry information about the x-rays absorbed by the detector. The parameters controlling the signal conditioner's operation can be readily supplied in digital form, allowing it to be integrated into a feedback loop as part of a larger digital x-ray spectroscopy system.

  13. ISSUANCE 2015-06-30: Energy Conservation Program for Certain Industrial Equipment: Energy Conservation Standards and Test Procedures for Commercial Heating, Air-Conditioning, and Water-Heating Equipment, Final Rule

    Broader source: Energy.gov [DOE]

    Energy Conservation Program for Certain Industrial Equipment: Energy Conservation Standards and Test Procedures for Commercial Heating, Air-Conditioning, and Water-Heating Equipment, Final Rule

  14. Process for analyzing CO[sub 2] in air and in water

    DOE Patents [OSTI]

    Atwater, J.E.; Akse, J.R.; DeHart, J.

    1999-06-08

    The process of this invention comprises providing a membrane for separating CO[sub 2] into a first CO[sub 2] sample phase and a second CO[sub 2] analyte phase. CO[sub 2] is then transported through the membrane thereby separating the CO[sub 2] with the membrane into a first CO[sub 2] sample phase and a second CO[sub 2] analyte liquid phase including an ionized, conductive, dissociated CO[sub 2] species. Next, the concentration of the ionized, conductive, dissociated CO[sub 2] species in the second CO[sub 2] analyte liquid phase is chemically amplified using a water-soluble chemical reagent which reversibly reacts with undissociated CO[sub 2] to produce conductivity changes therein corresponding to fluctuations in the partial pressure of CO[sub 2] in the first CO[sub 2] sample phase. Finally, the chemically amplified, ionized, conductive, dissociated CO[sub 2] species is introduced to a conductivity measuring instrument. Conductivity changes in the chemically amplified, ionized, conductive, dissociated CO[sub 2] species are detected using the conductivity measuring instrument. 43 figs.

  15. Process for analyzing CO.sub.2 in air and in water

    DOE Patents [OSTI]

    Atwater, James E. (Eugene, OR); Akse, James R. (Roseburg, OR); DeHart, Jeffrey (Yoncalla, OR)

    1999-01-01

    The process of this invention comprises providing a membrane for separating CO.sub.2 into a first CO.sub.2 sample phase and a second CO.sub.2 analyte phase. CO.sub.2 is then transported through the membrane thereby separating the CO.sub.2 with the membrane into a first CO.sub.2 sample phase and a second CO.sub.2 analyte liquid phase including an ionized, conductive, dissociated CO.sub.2 species. Next, the concentration of the ionized, conductive, dissociated CO.sub.2 species in the second CO.sub.2 analyte liquid phase is chemically amplified using a water-soluble chemical reagent which reversibly reacts with undissociated CO.sub.2 to produce conductivity changes therein corresponding to fluctuations in the partial pressure of CO.sub.2 in the first CO.sub.2 sample phase. Finally, the chemically amplified, ionized, conductive, dissociated CO.sub.2 species is introduced to a conductivity measuring instrument. Conductivity changes in the chemically amplified, ionized, conductive, dissociated CO.sub.2 species are detected using the conductivity measuring instrument.

  16. 2014-02-07 Issuance: Certification of Commercial Heating, Ventilation, and Air-conditioning, Water Heating, and Refrigeration Equipment; Notice of Proposed Rulemaking

    Broader source: Energy.gov [DOE]

    This document is a pre-publication Federal Register notice of proposed rulemaking regarding certification of commercial heating, ventilation, and air-conditioning, water-heating, and refrigeration equipment, as issued by the Deputy Assistant Secretary for Energy Efficiency on February 7, 2014.

  17. Practical ways to abate air and water pollution worldwide including a unique way to significantly curb global warming

    SciTech Connect (OSTI)

    Snell, J.R.

    1998-07-01

    This paper points out that in the next 50 years it will largely be the developing countries of the world which will continue to industrialize rapidly and hence pollute the water and air of not only their countries but that this pollution is becoming global (80% of the World's population.) From the author's 25 years of consulting experience in the developing countries, their greatest need is to have available to them low cost, innovative processes for pollution abatement will be neglected and the whole world will suffer immensely. The paper discusses in some detail the type of innovative low cost methods which have successfully been used in the categories of wastewater and solid wastes and names 6 other categories where many others exist. All these innovative methods need to be discovered, listed, and tested for quality and dependability, and then made widely available. Large Environmental Engineering Universities and International Consulting Engineering firms need to be organized to undertake these important tasks. The paper also points out the connection between Global Warming and the Solid waste industry and shows how it can be controlled inexpensively by employing a new, unique, and rapid method of converting municipal refuse into methane and then using that to make electricity. Information given in this paper could lead to a vast reduction in future pollution, with the resulting better global health and at the same time save trillions of dollars.

  18. Distribution of air-water mixtures in parallel vertical channels as an effect of the header geometry

    SciTech Connect (OSTI)

    Marchitto, Annalisa; Fossa, Marco; Guglielmini, Giovanni

    2009-07-15

    Uneven phase distribution in heat exchangers is a cause of severe reductions in thermal performances of refrigeration equipment. To date, no general design rules are available to avoid phase separation in manifolds with several outlet channels, and even predicting the phase and mass distribution in parallel channels is a demanding task. In the present paper, measurements of two-phase air-water distributions are reported with reference to a horizontal header supplying 16 vertical upward channels. The effects of the operating conditions, the header geometry and the inlet port nozzle were investigated in the ranges of liquid and gas superficial velocities of 0.2-1.2 and 1.5-16.5 m/s, respectively. Among the fitting devices used, the insertion of a co-axial, multi-hole distributor inside the header confirmed the possibility of greatly improving the liquid and gas flow distribution by the proper selection of position, diameter and number of the flow openings between the supplying distributor and the system of parallel channels connected to the header. (author)

  19. Air-To-Water Heat Pumps with Radiant Delivery in Low Load Homes: Tucson, Arizona and Chico, California (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-11-01

    Space conditioning represents nearly 50% of average residential household energy consumption, highlighting the need to identify alternative cost-effective, energy-efficient cooling and heating strategies. As homes are better built, there is an increasing need for strategies that are particularly well suited for high performance, low load homes. ARBI researchers worked with two test homes in hot-dry climates to evaluate the in-situ performance of air-to-water heat pump (AWHP) systems, an energy efficient space conditioning solution designed to cost-effectively provide comfort in homes with efficient, safe, and durable operation. Two monitoring projects of test houses in hot-dry climates were initiated in 2010 to test this system. Both systems were fully instrumented and have been monitored over one year to capture complete performance data over the cooling and heating seasons. Results are used to quantify energy savings, cost-effectiveness, and system performance using different operating modes and strategies. A calibrated TRNSYS model was developed and used to evaluate performance in various climate regions. This strategy is most effective in tight, insulated homes with high levels of thermal mass (i.e. exposed slab floors).

  20. Memorandum To: GENERAL COUNSEL, DEPARTMENT OF ENERGY (DOE) From: JONATHAN MELCHI, HEATING, AIR-CONDITIONING AND REFRIGERATION

    Office of Environmental Management (EM)

    GENERAL COUNSEL, DEPARTMENT OF ENERGY (DOE) From: JONATHAN MELCHI, HEATING, AIR-CONDITIONING AND REFRIGERATION DISTRIBUTORS INTERNATIONAL (HARDI) Date: 1/12/2012 Subject: EX PARTE COMMUNICATION MEMO DOE ATTENDEES: Ashley Armstrong, John Cymbalsky, David Case, Laura Barhydt HARDI ATTENDEES: Talbot Gee, Jonathan Melchi AREAS OF DISCUSSION: DOE Framework Document and Stakeholder Meeting regarding the Enforcement of the updated Energy Conservation Standards for Air Conditioners, Furnaces and Heat

  1. PEPCO- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    NOTE: Rebates for ENERGY STAR appliances on air conditioners, freezers, water heaters purchased after Feb 1, 2015 have been discontinued.  

  2. Delmarva Power- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    NOTE: Rebates for ENERGY STAR appliances on air conditioners, freezers, water heaters purchased after Feb 1, 2015 have been discontinued.  

  3. Tax Credits, Rebates & Savings | Department of Energy

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

    Freezers, Equipment Insulation, Water Heaters, Lighting, Lighting ControlsSensors, Heat Pumps, Air conditioners, Energy Mgmt. SystemsBuilding Controls, Building...

  4. Tax Credits, Rebates & Savings | Department of Energy

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

    Wind (All), Geothermal Heat Pumps, Water Heaters, Lighting, Lighting ControlsSensors, Chillers, Furnaces, Boilers, Air conditioners, Heat recovery, Steam-system upgrades,...

  5. Tax Credits, Rebates & Savings | Department of Energy

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

    Multifamily Residential Savings Category: RefrigeratorsFreezers, Equipment Insulation, Water Heaters, Lighting, Heat Pumps, Air conditioners, CaulkingWeather-stripping, Duct...

  6. Crow Wing Power - Residential Energy Efficiency Rebate Program...

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

    geothermal heat pumps, water heaters, refrigerators and clothes washers. Rebates on heat pumps and air conditioners vary by system efficiency. In addition to these rebates,...

  7. Tax Credits, Rebates & Savings | Department of Energy

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

    Heat Pumps, Air conditioners, Programmable Thermostats, Other EE, LED Lighting, Tankless Water Heater Renewable Energy and Energy Efficiency Project Financing For the purposes of...

  8. Tax Credits, Rebates & Savings | Department of Energy

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

    Residential, Agricultural Savings Category: Solar Water Heat, Solar Space Heat, Solar Photovoltaics, Air conditioners, Windows, Doors, Other EE Energy Efficiency in State...

  9. Tax Credits, Rebates & Savings | Department of Energy

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

    Equipment Insulation, Water Heaters, Lighting, Lighting ControlsSensors, Chillers, Heat Pumps, Air conditioners, Steam-system upgrades, Energy Mgmt. SystemsBuilding...

  10. Tax Credits, Rebates & Savings | Department of Energy

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

    Sensors, Chillers, Heat Pumps, Air conditioners, Other EE, Tankless Water Heater OTEC- Residential Energy Efficiency Rebate Program Oregon Trail Electric Cooperative (OTEC)...

  11. Riverland Energy Cooperative- Commercial and Industrial Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Riverland Energy Cooperative offers a number of rebates for the purchase and installation of efficient lighting fixtures, air conditioners, heat pumps, water heaters, central electric thermal sto...

  12. Tax Credits, Rebates & Savings | Department of Energy

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

    Clothes Washers, Dishwasher, Dehumidifiers, Water Heaters, Lighting, Lighting ControlsSensors, Chillers, Furnaces, Boilers, Heat Pumps, Air conditioners, Steam-system upgrades,...

  13. Sales Tax Holiday for Energy-Efficient Appliances | Department...

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

    each year for the following appliances*: Clothes washers Clothes dryers* Water heaters Trash compactors* Dishwashers Conventional ovens, ranges, and stoves* Air conditioners...

  14. Tax Credits, Rebates & Savings | Department of Energy

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

    Category: Clothes Washers, RefrigeratorsFreezers, Water Heaters, Air conditioners, Motor VFDs, Other EE, Pool Pumps Pacific Power- FinAnswer Express Pacific Power's FinAnswer...

  15. Tax Credits, Rebates & Savings | Department of Energy

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

    ENERGY STAR program. Eligibility: Residential Savings Category: Geothermal Heat Pumps, Water Heaters, Lighting, Heat Pumps, Air conditioners, CaulkingWeather-stripping, Duct...

  16. Tax Credits, Rebates & Savings | Department of Energy

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

    Geothermal Heat Pumps, Clothes Washers, RefrigeratorsFreezers, Dehumidifiers, Water Heaters, Heat Pumps, Air conditioners, Comprehensive MeasuresWhole Building, LED...

  17. Tax Credits, Rebates & Savings | Department of Energy

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

    Heat, Solar Photovoltaics, Wind (All), Biomass, Geothermal Heat Pumps, Combined Heat & Power, Water Heaters, Lighting, Chillers, Boilers, Heat Pumps, Air conditioners, Heat...

  18. Otter Tail Power Company - Commercial & Industrial Energy Efficiency...

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

    Agricultural Savings Category Geothermal Heat Pumps Water Heaters Lighting Furnaces Heat Pumps Air conditioners Heat recovery Building Insulation Motors Motor VFDs CustomOthers...

  19. EA-0819: Finding of No Significant Impact | Department of Energy

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

    Energy Conservation Standards for Eight Types of Consumer Products: Room Air Conditioners, Water Heaters, Direct Heating Equipment, Mobile Home Furnaces, Ranges and Ovens, Pool ...

  20. Minnesota Power - Residential New Construction Rebate Program...

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

    Construction Residential Savings Category Solar Photovoltaics Geothermal Heat Pumps Clothes Washers RefrigeratorsFreezers Dehumidifiers Water Heaters Heat Pumps Air conditioners...

  1. Tax Credits, Rebates & Savings | Department of Energy

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

    Gas, Water Heaters, Lighting, Chillers, Boilers, Heat Pumps, Air conditioners, Heat recovery, Programmable Thermostats, Energy Mgmt. SystemsBuilding Controls, Caulking...

  2. Tax Credits, Rebates & Savings | Department of Energy

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

    Pumps, Combined Heat & Power, Water Heaters, Lighting, Furnaces, Air conditioners, Heat recovery, Steam-system upgrades, Energy Mgmt. SystemsBuilding Controls, Caulking...

  3. Tax Credits, Rebates & Savings | Department of Energy

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

    Solar Water Heat, Solar Space Heat, Solar Photovoltaics, Wind (All), Biomass, Combined Heat & Power, Lighting, Chillers, Furnaces, Boilers, Heat Pumps, Air conditioners,...

  4. Verdigris Valley Electric Cooperative- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Verdigris Valley Electric Cooperative (VVEC) offers rebates for residential customers who purchase energy efficient home equipment. Rebates are available for room air conditioners, electric water...

  5. East Central Electric Cooperative- Residential Rebate Program

    Broader source: Energy.gov [DOE]

    East Central Electric Cooperative offers rebates to residential customers to install energy-efficient ground source heat pumps, electric water heaters, and air conditioners. To qualify for the...

  6. Tax Credits, Rebates & Savings | Department of Energy

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

    Freezers, Dehumidifiers, Water Heaters, Heat Pumps, Air conditioners Lodi Electric Utility- Residential Energy Efficiency Rebate Program Lodi Electric Utility (LEU) offers...

  7. Tax Credits, Rebates & Savings | Department of Energy

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

    Water Heaters, Heat Pumps, Air conditioners, Comprehensive MeasuresWhole Building, LED Lighting Sonoma County- Energy Independence Program The Federal Housing Financing...

  8. Tax Credits, Rebates & Savings | Department of Energy

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

    Freezers, Water Heaters, Heat Pumps, Air conditioners, Motors, Other EE, LED Lighting Jackson Energy Cooperative- Residential Energy Efficiency Rebate Programs Established in...

  9. Tax Credits, Rebates & Savings | Department of Energy

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

    Heat Pumps, Air conditioners, Programmable Thermostats, Windows, Other EE, Vending Machine Controls, Tankless Water Heater Austin Utilities (Gas and Electric)- Commercial and...

  10. Tax Credits, Rebates & Savings | Department of Energy

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

    Heat Pumps, Air conditioners, Programmable Thermostats, Windows, Other EE, Vending Machine Controls, Tankless Water Heater City of Palo Alto Utilities- Commercial Energy...

  11. Tax Credits, Rebates & Savings | Department of Energy

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

    Freezers, Water Heaters, Furnaces, Air conditioners, CaulkingWeather-stripping, Building Insulation, Doors Texas-New Mexico Power Company- Residential, Hard-to-Reach, and...

  12. Tax Credits, Rebates & Savings | Department of Energy

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

    Water Heaters, Lighting, Lighting ControlsSensors, Chillers, Air conditioners, Heat recovery, Programmable Thermostats, Energy Mgmt. SystemsBuilding Controls, Caulking...

  13. Tax Credits, Rebates & Savings | Department of Energy

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

    Institutional Savings Category: Clothes Washers, RefrigeratorsFreezers, Equipment Insulation, Water Heaters, Lighting, Lighting ControlsSensors, Heat Pumps, Air conditioners,...

  14. Tax Credits, Rebates & Savings | Department of Energy

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

    Biomass, Geothermal Heat Pumps, Municipal Solid Waste, Combined Heat & Power, Landfill Gas, Water Heaters, Lighting, Chillers, Boilers, Heat Pumps, Air conditioners, Heat...

  15. Tax Credits, Rebates & Savings | Department of Energy

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

    Heat & Power, Water Heaters, Furnaces, Air conditioners, Comprehensive MeasuresWhole Building, Wind (Small), Hydroelectric (Small), Geothermal Direct-Use, Other Distributed...

  16. Tax Credits, Rebates & Savings | Department of Energy

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

    Air conditioners, Building Insulation, Motors, CustomOthers pending approval, Other EE, Food Service Equipment, Data Center Equipment, LED Lighting, Tankless Water Heater,...

  17. Tax Credits, Rebates & Savings | Department of Energy

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

    Water Heat, Solar Space Heat, Solar Photovoltaics, Wind (All), Biomass, Combined Heat & Power, Lighting, Chillers, Furnaces, Boilers, Heat Pumps, Air conditioners, Programmable...

  18. Tax Credits, Rebates & Savings | Department of Energy

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

    are available for energy efficient central air conditioners, mobile home heat pumps, dual fuel heat pumps, geothermal heat pumps, duct sealing and water heaters. Rebates vary...

  19. Tax Credits, Rebates & Savings | Department of Energy

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

    Boilers, Air conditioners, Building Insulation, Other EE, Pool Pumps, Tankless Water Heater Solar Energy and Small Hydropower Tax Credit (Corporate) The maximum credit a...

  20. Tax Credits, Rebates & Savings | Department of Energy

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

    Heat & Power, Water Heaters, Lighting, Chillers, Boilers, Heat Pumps, Air conditioners, Heat recovery, Programmable Thermostats, Energy Mgmt. SystemsBuilding Controls, Caulking...

  1. Tax Credits, Rebates & Savings | Department of Energy

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

    Water Heaters, Heat Pumps, Air conditioners, Programmable Thermostats, Energy Mgmt. SystemsBuilding Controls, Other EE, LED Lighting PSEG Long Island- Residential Energy...

  2. Tax Credits, Rebates & Savings | Department of Energy

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

    Dishwasher, RefrigeratorsFreezers, Dehumidifiers, Water Heaters, Lighting, Heat Pumps, Air conditioners, Comprehensive MeasuresWhole Building, Other EE, Wind (Small),...

  3. Tax Credits, Rebates & Savings | Department of Energy

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

    Sensors, Chillers, Heat Pumps, Air conditioners, Other EE, Tankless Water Heater Eau Claire Energy Cooperative- Residential Energy Efficiency Rebate Program Eau Claire...

  4. Tax Credits, Rebates & Savings | Department of Energy

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

    Sensors, Chillers, Heat Pumps, Air conditioners, Other EE, Tankless Water Heater Eau Claire Energy Cooperative- Non-Residential Energy Efficiency Rebate Programs Eau Claire...

  5. Tax Credits, Rebates & Savings | Department of Energy

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

    Freezers, Water Heaters, Heat Pumps, Air conditioners, Motors, Other EE, LED Lighting Emerald PUD- Commercial and Industrial Energy Efficiency Rebate Program Emerald People's...

  6. Tax Credits, Rebates & Savings | Department of Energy

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

    Freezers, Water Heaters, Heat Pumps, Air conditioners, Motors, Other EE, LED Lighting Emerald PUD- Residential Energy Efficiency Rebate Program Emerald People's Utility District...

  7. Tax Credits, Rebates & Savings | Department of Energy

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

    Water Heaters, Furnaces, Air conditioners, Comprehensive MeasuresWhole Building, Wind (Small), Hydroelectric (Small), Geothermal Direct-Use, Other Distributed Generation...

  8. Tax Credits, Rebates & Savings | Department of Energy

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

    Fan, Equipment Insulation, Water Heaters, Lighting, Lighting ControlsSensors, Furnaces, Boilers, Heat Pumps, Air conditioners, Heat recovery, Programmable Thermostats, Caulking...

  9. Tax Credits, Rebates & Savings | Department of Energy

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

    Heat Pumps, Combined Heat & Power, Water Heaters, Lighting, Furnaces, Air conditioners, Heat recovery, Steam-system upgrades, Energy Mgmt. SystemsBuilding Controls, Caulking...

  10. Tax Credits, Rebates & Savings | Department of Energy

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

    Landfill Gas, Water Heaters, Lighting, Chillers, Boilers, Heat Pumps, Air conditioners, Heat recovery, Programmable Thermostats, Energy Mgmt. SystemsBuilding Controls, Caulking...

  11. Tax Credits, Rebates & Savings | Department of Energy

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

    Ceiling Fan, Water Heaters, Lighting, Furnaces, Boilers, Heat Pumps, Air conditioners, Motors, Other EE Austin Utilities (Gas and Electric)- Commercial and Industrial Energy...

  12. Surface Environmental Surveillance Project: Locations Manual Volume 1 Air and Water Volume 2 Farm Products, Soil & Vegetation, and Wildlife

    SciTech Connect (OSTI)

    Fritz, Brad G.; Patton, Gregory W.; Stegen, Amanda; Poston, Ted M.

    2009-01-01

    This report describes all environmental monitoring locations associated with the Surface Environmental Surveillance Project. Environmental surveillance of the Hanford site and surrounding areas is conducted by the Pacific Northwest National Laboratory (PNNL) for the U.S. Department of Energy (DOE). Sampling is conducted to evaluate levels of radioactive and nonradioactive pollutants in the Hanford environs, as required in DOE Order 450.1, Environmental Protection Program, and DOE Order 5400.5, Radiation Protection of the Public and the Environment. The environmental surveillance sampling design is described in the Hanford Site Environmental Monitoring Plan, United States Department of Energy, Richland Operation Office (DOE/RL-91-50). This document contains the locations of sites used to collect samples for the Surface Environmental Surveillance Project (SESP). Each section includes directions, maps, and pictures of the locations. A general knowledge of roads and highways on and around the Hanford Site is necessary to successfully use this manual. Supplemental information (Maps, Gazetteer, etc.) may be necessary if user is unfamiliar with local routes. The SESP is a multimedia environmental surveillance effort to measure the concentrations of radionuclides and chemicals in environmental media to demonstrate compliance with applicable environmental quality standards and public exposure limits, and assessing environmental impacts. Project personnel annually collect selected samples of ambient air, surface water, agricultural products, fish, wildlife, and sediments. Soil and vegetation samples are collected approximately every 5 years. Analytical capabilities include the measurement of radionuclides at very low environmental concentrations and, in selected media, nonradiological chemicals including metals, anions, volatile organic compounds, and total organic carbon.

  13. Avoiding 100 New Power Plants by Increasing Efficiency of Room Air Conditioners in India: Opportunities and Challenges

    SciTech Connect (OSTI)

    Phadke, Amol; Abhyankar, Nikit; Shah, Nihar

    2014-06-19

    Electricity demand for room ACs is growing very rapidly in emerging economies such as India. We estimate the electricity demand from room ACs in 2030 in India considering factors such as weather and income growth using market data on penetration of ACs in different income classes and climatic regions. We discuss the status of the current standards, labels, and incentive programs to improve the efficiency of room ACs in these markets and assess the potential for further large improvements in efficiency and find that efficiency can be improved by over 40percent cost effectively. The total potential energy savings from Room AC efficiency improvement in India using the best available technology will reach over 118 TWh in 2030; potential peak demand saving is found to be 60 GW by 2030. This is equivalent to avoiding 120 new coal fired power plants of 500 MW each. We discuss policy options to complement, expand and improve the ongoing programs to capture this large potential.

  14. Avoiding 100 new power plants by increasing efficiency of room air conditioners in India: opportunities and challenges

    SciTech Connect (OSTI)

    Phadke, Amol; Abhyankar, Nikit; Shah, Nihar

    2013-10-15

    Electricity demand for room ACs is growing very rapidly in emerging economies such as India. We estimate the electricity demand from room ACs in 2030 in India considering factors such as weather and income growth using market data on penetration of ACs in different income classes and climatic regions. We discuss the status of the current standards, labels, and incentive programs to improve the efficiency of room ACs in these markets and assess the potential for further large improvements in efficiency and find that efficiency can be improved by over 40% cost effectively. The total potential energy savings from Room AC efficiency improvement in India using the best available technology will reach over 118 TWh in 2030; potential peak demand saving is found to be 60 GW by 2030. This is equivalent to avoiding 120 new coal fired power plants of 500 MW each. We discuss policy options to complement, expand and improve the ongoing programs to capture this large potential.

  15. Field Testing and Demonstration of the Smart Monitoring and Diagnostic System (SMDS) for Packaged Air-Conditioners and Heat Pumps

    SciTech Connect (OSTI)

    Taasevigen, Danny J.; Brambley, Michael R.; Huang, Yunzhi; Lutes, Robert G.; Gilbride, Spencer P.

    2015-05-29

    This documents results of a project focused on testing and demonstrating both the hardware and software versions of the smart monitoring and diagnostic system (SMDS) under field conditions.

  16. DOE Facilitates Market-Driven Solutions to Develop and Deploy New High-Efficiency Commercial Air Conditioners

    Broader source: Energy.gov [DOE]

    Jointly-developed performance criteria to help businesses save money, improve economic competitiveness

  17. Air Cooling | Open Energy Information

    Open Energy Info (EERE)

    Air cooling is limited on ambient temperatures and typically require a larger footprint than Water Cooling, but when water restrictions are great enough to prevent the...

  18. Performance Evaluation of a 4.5 kW (1.3 Refrigeration Tons) Air-Cooled Lithium Bromide/Water Solar Powered (Hot-Water-Fired) Absorption Unit

    SciTech Connect (OSTI)

    Zaltash, Abdolreza; Petrov, Andrei Y; Linkous, Randall Lee; Vineyard, Edward Allan

    2007-01-01

    During the summer months, air-conditioning (cooling) is the single largest use of electricity in both residential and commercial buildings with the major impact on peak electric demand. Improved air-conditioning technology has by far the greatest potential impact on the electric industry compared to any other technology that uses electricity. Thermally activated absorption air-conditioning (absorption chillers) can provide overall peak load reduction and electric grid relief for summer peak demand. This innovative absorption technology is based on integrated rotating heat exchangers to enhance heat and mass transfer resulting in a potential reduction of size, cost, and weight of the "next generation" absorption units. Rotartica Absorption Chiller (RAC) is a 4.5 kW (1.3 refrigeration tons or RT) air-cooled lithium bromide (LiBr)/water unit powered by hot water generated using the solar energy and/or waste heat. Typically LiBr/water absorption chillers are water-cooled units which use a cooling tower to reject heat. Cooling towers require a large amount of space, increase start-up and maintenance costs. However, RAC is an air-cooled absorption chiller (no cooling tower). The purpose of this evaluation is to verify RAC performance by comparing the Coefficient of Performance (COP or ratio of cooling capacity to energy input) and the cooling capacity results with those of the manufacturer. The performance of the RAC was tested at Oak Ridge National Laboratory (ORNL) in a controlled environment at various hot and chilled water flow rates, air handler flow rates, and ambient temperatures. Temperature probes, mass flow meters, rotational speed measuring device, pressure transducers, and a web camera mounted inside the unit were used to monitor the RAC via a web control-based data acquisition system using Automated Logic Controller (ALC). Results showed a COP and cooling capacity of approximately 0.58 and 3.7 kW respectively at 35 C (95 F) design condition for ambient temperature with 40 C (104 F) cooling water temperature. This is in close agreement with the manufacturer data of 0.60 for COP and 3.9 kW for cooling capacity. This study resulted in a complete performance map of RAC which will be used to evaluate the potential benefits of rotating heat exchangers in making the "next-generation" absorption chillers more compact and cost effective without any significant degradation in the performance. In addition, the feasibility of using rotating heat exchangers in other applications will be evaluated.

  19. Do residential air-conditioning rebates miss the mark?

    SciTech Connect (OSTI)

    Stickney, B.; Shepard, M.

    1994-12-31

    The rebates utilities provide for residential central air conditioners and heat pumps to encourage improved cooling efficiency may inadvertently reward higher peak demand in many cases. This problem could be avoided by using both efficiency and peak performance to determine eligibility for rebates. Such changes to incentive formulas would better align the utilities` DSM programs with the dual goals of improved efficiency and peak demand reduction. Improved peak performance would be especially advantageous for sunbelt utilities whose residential cooling load is highly coincident with the summer peak. Air conditioning has been called the utilities` ``load from hell,`` because it is intermittent, unpredictable, and is the largest contributor to summer peak demand, requiring massive investments in power generation and delivery capacity. It is no wonder then that more DSM programs are targeted at space cooling than at any other end use. Ironically, however, all of the residential rebate programs the authors examined for central air conditioners and heat pumps are based on the seasonal energy efficiency ratio (SEER), which provides a valuable measure of seasonal energy efficiency but is not a good indicator of peak demand. Residential central air conditioning incentive programs for eight major utilities are based exclusively on SEER and most ratchet up the incentive levels with increasing SEER. None include the measure for peak demand for residential cooling equipment, which is the so-called energy efficiency ratio, or EER.

  20. Stronger Manufacturers' Energy Efficiency Standards for Residential...

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

    Energy Efficiency Standards for Residential Air Conditioners Go Into Effect Today Stronger Manufacturers' Energy Efficiency Standards for Residential Air Conditioners...

  1. [Environmental investigation of ground water contamination at Wright-Patterson Air Force Base, Ohio]. Volume 2, Work plan: Phase 1, Task 4, Field Investigation: Draft

    SciTech Connect (OSTI)

    Not Available

    1991-10-01

    In April 1990 Wright-Patterson Air Force Base (WPAFB) initiated an investigation to evaluate a potential CERCLA removal action to prevent, to the extent practicable, the migration of ground-water contamination in the Mad River Valley Aquifer within and across WPAFB boundaries. The action will be based on a Focused Feasibility Study with an Action Memorandum serving as a decision document that is subject to approval by the Ohio Environmental Protection Agency. The first phase (Phase 1) of this effort involves an investigation of ground-water contamination migrating across the southwest boundary of Area C and across Springfield Pike adjacent to Area B. Task 4 of Phase 1 is a field investigation to collect sufficient additional information to evaluate removal alternatives. The field investigation will provide information in the following specific areas of study: water-level data which will be used to permit calibration of the ground-water flow model to a unique time in history; and ground-water quality data which will be used to characterize the current chemical conditions of ground water.

  2. Air Handler Condensate Recovery at the Environmental Protection Agencys Science and Ecosystem Support Division: Best Management Practice Case Study #14: Alternate Water Sources, Federal Energy Management Program (FEMP) (Fact Sheet)

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

    Severe drought in the southeastern United States caused the U.S. Environmental Protection Agency (EPA) to address the need for water conservation and develop a water management plan for their Science and Ecosystem Support Division (SESD). The water management plan aimed to reduce SESD's potable water usage (more than 2.4 million gallons in fiscal year 2008) through an air handler condensate recovery project. The EPA SESD encompasses 12 acres in Athens, Georgia. A single laboratory building was

  3. Desiccant Enhanced Evaporative Air-Conditioning (DEVap): Evaluation of a New Concept in Ultra Efficient Air Conditioning

    SciTech Connect (OSTI)

    Kozubal, E.; Woods, J.; Burch, J.; Boranian, A.; Merrigan, T.

    2011-01-01

    NREL has developed the novel concept of a desiccant enhanced evaporative air conditioner (DEVap) with the objective of combining the benefits of liquid desiccant and evaporative cooling technologies into an innovative 'cooling core.' Liquid desiccant technologies have extraordinary dehumidification potential, but require an efficient cooling sink. DEVap's thermodynamic potential overcomes many shortcomings of standard refrigeration-based direct expansion cooling. DEVap decouples cooling and dehumidification performance, which results in independent temperature and humidity control. The energy input is largely switched away from electricity to low-grade thermal energy that can be sourced from fuels such as natural gas, waste heat, solar, or biofuels.

  4. Compressed Air

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

    Lighting Compressed Air ESUE Motors Federal Agriculture Compressed Air Compressed Air Roadmap The Bonneville Power Administration created the roadmap to help utilities find energy...

  5. Responses of soil respiration to elevated CO2, air warming, and changing soil water availability in an old-field grassland

    SciTech Connect (OSTI)

    Wan, Shiqiang [Chinese Academy of Sciences; Norby, Richard J [ORNL; Childs, Joanne [ORNL; Weltzin, Jake [University of Tennessee, Knoxville (UTK)

    2007-01-01

    Responses of soil respiration to atmospheric and climatic change will have profound impacts on ecosystem and global C cycling in the future. This study was conducted to examine effects on soil respiration of the concurrent driving factors of elevated atmospheric CO2 concentration, rising temperature, and changing precipitation in a constructed old-field grassland in eastern Tennessee, USA. Model ecosystems of seven old-field species in 12 open-top chambers (4 m in diameter) were treated with two CO2 (ambient and ambient plus 300 ppm) and two temperature (ambient and ambient plus 3 C) levels. Two split plots with each chamber were assigned with high and low soil moisture levels. During the 19-month experimental period from June 2003 to December 2004, higher CO2 concentration and soil water availability significantly increased mean soil respiration by 35.8% and 15.7%, respectively. The effects of air warming on soil respiration varied seasonally from small reductions to significant increases to no response, and there was no significant main effect. In the wet side of elevated CO2 chambers, air warming consistently caused increases in soil respiration, whereas in other three combinations of CO2 and water treatments, warming tended to decrease soil respiration over the growing season but increase it over the winter. There were no interactive effects on soil respiration among any two or three treatment factors irrespective of testing time period. Temperature sensitivity of soil respiration was reduced by air warming, lower in the wet than the dry side, and not affected by CO2 treatment. Variations of soil respiration responses with soil temperature and soil moisture ranges could be primarily attributable to the seasonal dynamics of plant growth and its responses to the three treatments. Using a conceptual model to interpret the significant relationships of treatment-induced changes in soil respiration with changes in soil temperature and moisture observed in this study, we conclude that elevated CO2, air warming, and changing soil water availability had both direct and indirect effects on soil respiration via changes in the three controlling factors: soil temperature, soil moisture, and C substrate. Our results demonstrate that the response of soil respiration to climatic warming should not be represented in models as a simple temperature response function. A more mechanistic understanding of the direct and indirect impacts of concurrent global change drivers on soil respiration is needed to facilitate the interpretation and projection of ecosystem and global C cycling in response to atmospheric and climate change.

  6. Reorientation of the free OH group in the top-most layer of air/water interface of sodium fluoride aqueous solution probed with sum-frequency generation vibrational spectroscopy

    SciTech Connect (OSTI)

    Feng, Ran-Ran; Guo, Yuan; Wang, Hongfei

    2014-09-17

    Many experimental and theoretical studies have established the specific anion, as well as cation effects on the hydrogen-bond structures at the air/water interface of electrolyte solutions. However, the ion effects on the top-most layer of the air/water interface, which is signified by the non-hydrogen-bonded so-called free O-H group, has not been discussed or studied. In this report, we present the measurement of changes of the orientational angle of the free O-H group at the air/water interface of the sodium fluoride (NaF) solutions at different concentrations using the interface selective sum-frequency generation vibrational spectroscopy (SFG-VS) in the ssp and ppp polarizations. The polarization dependent SFG-VS results show that the average tilt angle of the free O-H changes from about 35.3 degrees 0.5 degrees to 43.4 degrees 2.1degrees as the NaF concentration increase from 0 to 0.94M (nearly saturated). Such tilt angle change is around the axis of the other O-H group of the same water molecule at the top-most layer at the air/water interface that is hydrogen-bonded to the water molecules below the top-most layer. These results provide quantitative molecular details of the ion effects of the NaF salt on the structure of the water molecules at the top-most layer of the air/water interfacial, even though both the Na+ cation and the F- anion are believed to be among the most excluded ions from the air/water interface.

  7. Air-To-Water Heat Pumps with Radiant Delivery in Low Load Homes, Tucson, Arizona and Chico, California (Fact Sheet), Building America Case Study: Technology Solutions for New and Existing Homes, Building Technologies Office (BTO)

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

    Air-to-Water Heat Pumps With Radiant Delivery in Low Load Homes Tucson, Arizona and Chico, California PROJECT INFORMATION Project Name: Field testing of air-to-water heat pump Location: Tucson, AZ and Chico, CA Partners: La Mirada Homes www.lamiradahomes.net Chico Green Builders Daikin www.daikinac.com ARBI http://arbi.davisenergy.com/ Building Component: HVAC, domestic hot water Application: New, single family Year Tested: 2011-2012 Applicable Climate Zones: Hot-dry, cold PERFORMANCE DATA Cost

  8. Future Air Conditioning Energy Consumption in Developing Countriesand what can be done about it: The Potential of Efficiency in theResidential Sector

    SciTech Connect (OSTI)

    McNeil, Michael A.; Letschert, Virginie E.

    2007-05-01

    The dynamics of air conditioning are of particular interestto energy analysts, both because of the high energy consumption of thisproduct, but also its disproportionate impact on peak load. This paperaddresses the special role of this end use as a driver of residentialelectricity consumption in rapidly developing economies. Recent historyhas shown that air conditioner ownership can grow grows more rapidly thaneconomic growth in warm-climate countries. In 1990, less than a percentof urban Chinese households owned an air conditioner; by 2003 this numberrose to 62 percent. The evidence suggests a similar explosion of airconditioner use in many other countries is not far behind. Room airconditioner purchases in India are currently growing at 20 percent peryear, with about half of these purchases attributed to the residentialsector. This paper draws on two distinct methodological elements toassess future residential air conditioner 'business as usual' electricityconsumption by country/region and to consider specific alternative 'highefficiency' scenarios. The first component is an econometric ownershipand use model based on household income, climate and demographicparameters. The second combines ownership forecasts and stock accountingwith geographically specific efficiency scenarios within a uniqueanalysis framework (BUENAS) developed by LBNL. The efficiency scenariomodule considers current efficiency baselines, available technologies,and achievable timelines for development of market transformationprograms, such as minimum efficiency performance standards (MEPS) andlabeling programs. The result is a detailed set of consumption andemissions scenarios for residential air conditioning.

  9. [Environmental investigation of ground water contamination at Wright-Patterson Air Force Base, Ohio]. Volume 3, Sampling and analysis plan (SAP): Phase 1, Task 4, Field Investigation: Draft

    SciTech Connect (OSTI)

    Not Available

    1991-10-01

    In April 1990, Wright-Patterson Air Force Base (WPAFB), initiated an investigation to evaluate a potential Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) removal action to prevent, to the extent practicable, the offsite migration of contaminated ground water from WPAFB. WPAFB retained the services of the Environmental Management Operations (EMO) and its principle subcontractor, International Technology Corporation (IT) to complete Phase 1 of the environmental investigation of ground-water contamination at WPAFB. Phase 1 of the investigation involves the short-term evaluation and potential design for a program to remove ground-water contamination that appears to be migrating across the western boundary of Area C, and across the northern boundary of Area B along Springfield Pike. Primarily, Task 4 of Phase 1 focuses on collection of information at the Area C and Springfield Pike boundaries of WPAFB. This Sampling and Analysis Plan (SAP) has been prepared to assist in completion of the Task 4 field investigation and is comprised of the Quality Assurance Project Plan (QAPP) and the Field Sampling Plan (FSP).

  10. Technology Solutions Case Study: Air-To-Water Heat Pumps with Radiant Delivery in Low Load Homes, Tucson, Arizona and Chico, California

    SciTech Connect (OSTI)

    2013-11-01

    Space conditioning represents nearly 50% of average residential household energy consumption, highlighting the need to identify alternative cost-effective, energy-efficient cooling and heating strategies. As homes are better built, there is an increasing need for strategies that are particularly well suited for high performance, low load homes. ARBI researchers worked with two test homes in hot-dry climates to evaluate the in-situ performance of air-to-water heat pump (AWHP) systems, an energy efficient space conditioning solution designed to cost-effectively provide comfort in homes with efficient, safe, and durable operation. Both systems were fully instrumented and have been monitored over one year to capture complete performance data over the cooling and heating seasons. Results are used to quantify energy savings, cost-effectiveness, and system performance using different operating modes and strategies. This strategy is most effective in tight, insulated homes with high levels of thermal mass (i.e. exposed slab floors).

  11. Bibliography of work on the heterogeneous photocatalytic removal of hazardous compounds from water and air, Update Number 2 to October 1996

    SciTech Connect (OSTI)

    Blake, D.M.

    1997-01-01

    The Solar Industrial Program has developed processes that destroy hazardous substances in or remove them from water and air. The processes of interest in this report are based on the application of heterogeneous photocatalysts, principally titanium dioxide or modifications thereof, but work on other heterogeneous catalysts is included in this compilation. This report continues bibliographies that were published in May, 1994, and October, 1995. The previous reports included 663 and 574 citations, respectively. This update contains an additional 518 references. These were published during the period from June 1995 to October 1996, or are references from prior years that were not included in the previous reports. The work generally focuses on removing hazardous contaminants from air or water to meet environmental or health regulations. This report also references work on properties of semiconductor photocatalysts and applications of photocatalytic chemistry in organic synthesis. This report follows the same organization as the previous publications. The first part provides citations for work done in a few broad categories that are generic to the process. Three tables provide references to work on specific substances. The first table lists organic compounds that are included in various lists of hazardous substances identified by the US Environmental Protection Agency (EPA). The second table lists compounds not included in those categories, but which have been treated in a photocatalytic process. The third table covers inorganic compounds that are on EPA lists of hazardous materials or that have been treated by a photocatalytic process. A short update on companies that are active in providing products or services based on photocatalytic processes is provided.

  12. Algorithm and simulation development in support of response strategies for contamination events in air and water systems.

    SciTech Connect (OSTI)

    Waanders, Bart Van Bloemen

    2006-01-01

    Chemical/Biological/Radiological (CBR) contamination events pose a considerable threat to our nation's infrastructure, especially in large internal facilities, external flows, and water distribution systems. Because physical security can only be enforced to a limited degree, deployment of early warning systems is being considered. However to achieve reliable and efficient functionality, several complex questions must be answered: (1) where should sensors be placed, (2) how can sparse sensor information be efficiently used to determine the location of the original intrusion, (3) what are the model and data uncertainties, (4) how should these uncertainties be handled, and (5) how can our algorithms and forward simulations be sufficiently improved to achieve real time performance? This report presents the results of a three year algorithmic and application development to support the identification, mitigation, and risk assessment of CBR contamination events. The main thrust of this investigation was to develop (1) computationally efficient algorithms for strategically placing sensors, (2) identification process of contamination events by using sparse observations, (3) characterization of uncertainty through developing accurate demands forecasts and through investigating uncertain simulation model parameters, (4) risk assessment capabilities, and (5) reduced order modeling methods. The development effort was focused on water distribution systems, large internal facilities, and outdoor areas.

  13. Value impact analysis of Generic Issue 143, Availability of Heating, Ventilation, Air Conditioning (HVAC) and Chilled Water Systems

    SciTech Connect (OSTI)

    Daling, P.M.; Marler, J.E.; Vo, T.V.; Phan, H.; Friley, J.R.

    1993-11-01

    This study evaluates the values (benefits) and impacts (costs) associated with potential resolutions to Generic Issue 143, ``Availability of HVAC and Chilled Water Systems.`` The study identifies vulnerabilities related to failures of HVAC, chilled water, and room cooling systems; develops estimates of room heatup rates and safety-related equipment vulnerabilities following losses of HVAC/room cooler systems; develops estimates of the core damage frequencies and public risks associated with failures of these systems; develops three proposed resolution strategies to this generic issue; and performs a value/impact analysis of the proposed resolutions. Existing probabilistic risk assessments for four representative plants, including one plant from each vendor, form the basis for the core damage frequency and public risk calculations. Both internal and external events were considered. It was concluded that all three proposed resolution strategies exceed the $1,000/person-rem cost-effectiveness ratio. Additional evaluations were performed to develop ``generic`` insights on potential design-related and configuration-related vulnerabilities and potential high-frequency ({approximately}1E-04/RY) accident sequences that involve failures of HVAC/room cooling functions. It was concluded that, although high-frequency accident sequences may exist at some plants, these high-frequency sequences are plant-specific in nature or have been resolved through hardware and/or operational changes. The plant-specific Individual Plant Examinations are an effective vehicle for identification and resolution of these plant-specific anomalies and hardware configurations.

  14. A fundamentally new approach to air-cooled heat exchangers.

    SciTech Connect (OSTI)

    Koplow, Jeffrey P.

    2010-01-01

    We describe breakthrough results obtained in a feasibility study of a fundamentally new architecture for air-cooled heat exchangers. A longstanding but largely unrealized opportunity in energy efficiency concerns the performance of air-cooled heat exchangers used in air conditioners, heat pumps, and refrigeration equipment. In the case of residential air conditioners, for example, the typical performance of the air cooled heat exchangers used for condensers and evaporators is at best marginal from the standpoint the of achieving maximum the possible coefficient of performance (COP). If by some means it were possible to reduce the thermal resistance of these heat exchangers to a negligible level, a typical energy savings of order 30% could be immediately realized. It has long been known that a several-fold increase in heat exchanger size, in conjunction with the use of much higher volumetric flow rates, provides a straight-forward path to this goal but is not practical from the standpoint of real world applications. The tension in the market place between the need for energy efficiency and logistical considerations such as equipment size, cost and operating noise has resulted in a compromise that is far from ideal. This is the reason that a typical residential air conditioner exhibits significant sensitivity to reductions in fan speed and/or fouling of the heat exchanger surface. The prevailing wisdom is that little can be done to improve this situation; the 'fan-plus-finned-heat-sink' heat exchanger architecture used throughout the energy sector represents an extremely mature technology for which there is little opportunity for further optimization. But the fact remains that conventional fan-plus-finned-heat-sink technology simply doesn't work that well. Their primary physical limitation to performance (i.e. low thermal resistance) is the boundary layer of motionless air that adheres to and envelops all surfaces of the heat exchanger. Within this boundary layer region, diffusive transport is the dominant mechanism for heat transfer. The resulting thermal bottleneck largely determines the thermal resistance of the heat exchanger. No one has yet devised a practical solution to the boundary layer problem. Another longstanding problem is inevitable fouling of the heat exchanger surface over time by particulate matter and other airborne contaminants. This problem is especially important in residential air conditioner systems where often little or no preventative maintenance is practiced. The heat sink fouling problem also remains unsolved. The third major problem (alluded to earlier) concerns inadequate airflow to heat exchanger resulting from restrictions on fan noise. The air-cooled heat exchanger described here solves all of the above three problems simultaneously. The 'Air Bearing Heat Exchanger' provides a several-fold reduction in boundary layer thickness, intrinsic immunity to heat sink fouling, and drastic reductions in noise. It is also very practical from the standpoint of cost, complexity, ruggedness, etc. Successful development of this technology is also expected to have far reaching impact in the IT sector from the standpointpoint of solving the 'Thermal Brick Wall' problem (which currently limits CPU clocks speeds to {approx}3 GHz), and increasing concern about the the electrical power consumption of our nation's information technology infrastructure.

  15. Air Quality

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

    Air Quality Air Quality To preserve our existing wilderness-area air quality, LANL implements a conscientious program of air monitoring. March 17, 2015 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

  16. Manufacturing of Protected Lithium Electrodes for Advanced Lithium-Air, Lithium-Water & Lithium-Sulfur Batteries

    SciTech Connect (OSTI)

    Visco, Steven J

    2015-11-30

    The global demand for rechargeable batteries is large and growing rapidly. Assuming the adoption of electric vehicles continues to increase, the need for smaller, lighter, and less expensive batteries will become even more pressing. In this vein, PolyPlus Battery Company has developed ultra-light high performance batteries based on its proprietary protected lithium electrode (PLE) technology. The Company’s Lithium-Air and Lithium-Seawater batteries have already demonstrated world record performance (verified by third party testing), and we are developing advanced lithium-sulfur batteries which have the potential deliver high performance at low cost. In this program PolyPlus Battery Company teamed with Corning Incorporated to transition the PLE technology from bench top fabrication using manual tooling to a pre- commercial semi-automated pilot line. At the inception of this program PolyPlus worked with a Tier 1 battery manufacturing engineering firm to design and build the first-of-its-kind pilot line for PLE production. The pilot line was shipped and installed in Berkeley, California several months after the start of the program. PolyPlus spent the next two years working with and optimizing the pilot line and now produces all of its PLEs on this line. The optimization process successfully increased the yield, throughput, and quality of PLEs produced on the pilot line. The Corning team focused on fabrication and scale-up of the ceramic membranes that are key to the PLE technology. PolyPlus next demonstrated that it could take Corning membranes through the pilot line process to produce state-of-the-art protected lithium electrodes. In the latter part of the program the Corning team developed alternative membranes targeted for the large rechargeable battery market. PolyPlus is now in discussions with several potential customers for its advanced PLE-enabled batteries, and is building relationships and infrastructure for the transition into manufacturing. It is likely that the next step will be accomplished through a combination of joint venture partnering and licensing of the technology.

  17. Magnetic Refrigeration Technology for High Efficiency Air Conditioning

    SciTech Connect (OSTI)

    Boeder, A; Zimm, C

    2006-09-30

    Magnetic refrigeration was investigated as an efficient, environmentally friendly, flexible alternative to conventional residential vapor compression central air conditioning systems. Finite element analysis (FEA) models of advanced geometry active magnetic regenerator (AMR) beds were developed to minimize bed size and thus magnet mass by optimizing geometry for fluid flow and heat transfer and other losses. Conventional and magnetocaloric material (MCM) regenerator fabrication and assembly techniques were developed and advanced geometry passive regenerators were built and tested. A subscale engineering prototype (SEP) magnetic air conditioner was designed, constructed and tested. A model of the AMR cycle, combined with knowledge from passive regenerator experiments and FEA results, was used to design the regenerator beds. A 1.5 Tesla permanent magnet assembly was designed using FEA and the bed structure and plenum design was extensively optimized using FEA. The SEP is a flexible magnetic refrigeration platform, with individually instrumented beds and high flow rate and high frequency capability, although the current advanced regenerator geometry beds do not meet performance expectations, probably due to manufacturing and assembly tolerances. A model of the AMR cycle was used to optimize the design of a 3 ton capacity magnetic air conditioner, and the system design was iterated to minimize external parasitic losses such as heat exchanger pressure drop and fan power. The manufacturing cost for the entire air conditioning system was estimated, and while the estimated SEER efficiency is high, the magnetic air conditioning system is not cost competitive as currently configured. The 3 ton study results indicate that there are other applications where magnetic refrigeration is anticipated to have cost advantages over conventional systems, especially applications where magnetic refrigeration, through the use of its aqueous heat transfer fluid, could eliminate intermediate heat exchangers or oil distribution issues found in traditional vapor compression systems.

  18. Air Quality

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

    Air Quality Air Quality Tour The Laboratory calculates the dose to the maximally exposed individual (MEI) to determine effects of Laboratory operations on the public.

  19. Air Quality

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

    Air Quality Air Quality Tour The Laboratory calculates the dose to the maximally exposed individual (MEI) to determine effects of Laboratory operations on the public. Open full...

  20. Tax Credits, Rebates & Savings | Department of Energy

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

    CaulkingWeather-stripping filter DuctAir sealing (10) Apply DuctAir sealing filter Windows (10) Apply Windows filter Air conditioners (9) Apply Air conditioners filter...

  1. Tensile and Fatigue Testing and Material Hardening Model Development for 508 LAS Base Metal and 316 SS Similar Metal Weld under In-air and PWR Primary Loop Water Conditions

    SciTech Connect (OSTI)

    Mohanty, Subhasish; Soppet, William; Majumdar, Saurin; Natesan, Ken

    2015-09-01

    This report provides an update on an assessment of environmentally assisted fatigue for light water reactor components under extended service conditions. This report is a deliverable in September 2015 under the work package for environmentally assisted fatigue under DOE’s Light Water Reactor Sustainability program. In an April 2015 report we presented a baseline mechanistic finite element model of a two-loop pressurized water reactor (PWR) for systemlevel heat transfer analysis and subsequent thermal-mechanical stress analysis and fatigue life estimation under reactor thermal-mechanical cycles. In the present report, we provide tensile and fatigue test data for 508 low-alloy steel (LAS) base metal, 508 LAS heat-affected zone metal in 508 LAS–316 stainless steel (SS) dissimilar metal welds, and 316 SS-316 SS similar metal welds. The test was conducted under different conditions such as in air at room temperature, in air at 300 oC, and under PWR primary loop water conditions. Data are provided on materials properties related to time-independent tensile tests and time-dependent cyclic tests, such as elastic modulus, elastic and offset strain yield limit stress, and linear and nonlinear kinematic hardening model parameters. The overall objective of this report is to provide guidance to estimate tensile/fatigue hardening parameters from test data. Also, the material models and parameters reported here can directly be used in commercially available finite element codes for fatigue and ratcheting evaluation of reactor components under in-air and PWR water conditions.

  2. Air Handler Condensate Recovery at the Environmental Protection...

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

    The plan aimed to reduce potable water usage through an air handler condensate recovery project. PDF icon epa-scesdwatercs.pdf More Documents & Publications Air Handler Condensate ...

  3. Air filter

    SciTech Connect (OSTI)

    Jackson, R.E.; Sparks, J.E.

    1981-03-03

    An air filter is described that has a counter rotating drum, i.e., the rotation of the drum is opposite the tangential intake of air. The intake air has about 1 lb of rock wool fibers per 107 cu. ft. of air sometimes at about 100% relative humidity. The fibers are doffed from the drum by suction nozzle which are adjacent to the drum at the bottom of the filter housing. The drum screen is cleaned by periodically jetting hot dry air at 120 psig through the screen into the suction nozzles.

  4. Tax Credits, Rebates & Savings | Department of Energy

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

    Solar Space Heat (3) Apply Solar Space Heat filter Solar Water Heat (3) Apply Solar Water Heat filter Wind (Small) (3) Apply Wind (Small) filter Air conditioners (2) Apply...

  5. Humidity-dependent compression-induced glass transition of the airwater interfacial Langmuir films of poly(D,L-lactic acid-ran-glycolic acid) (PLGA)

    SciTech Connect (OSTI)

    Kim, Hyun Chang; Lee, Hoyoung; Jung, Hyunjung; Choi, Yun -Hwa; Meron, Mati; Lin, Binhua; Bang, Joona; Won, You -Yeon

    2015-08-26

    Constant rate compression isotherms of the airwater interfacial Langmuir films of poly(D,L-lactic acid-ran-glycolic acid) (PLGA)show a distinct feature of an exponential increase in surface pressure in the high surface polymer concentration regime. We have previously demonstrated that this abrupt increase in surface pressure is linked to the glass transition of the polymer film, but the detailed mechanism of this process is not understood. In order to obtain a molecular-level understanding of this behavior, we performed extensive characterizations of the surface mechanical, structural and rheological properties of Langmuir PLGA films at the airwater interface, using combined experimental techniques including the Langmuir film balance, X-ray reflectivity and double-wall-ring interfacial rheometry methods.

  6. Seneca Compressed Air Energy Storage (CAES) Project

    SciTech Connect (OSTI)

    2012-11-30

    This document provides specifications for the process air compressor for a compressed air storage project, requests a budgetary quote, and provides supporting information, including compressor data, site specific data, water analysis, and Seneca CAES value drivers.

  7. air force

    National Nuclear Security Administration (NNSA)

    en NNSA, Air Force Complete Successful B61-12 Life Extension Program Development Flight Test at Tonopah Test Range http:nnsa.energy.govmediaroompressreleases...

  8. Air Conditioning Stall Phenomenon Testing, Model Development, and Simulation

    SciTech Connect (OSTI)

    Irminger, Philip; Rizy, D Tom; Li, Huijuan; Smith, Travis; Rice, C Keith; Li, Fangxing; Adhikari, Sarina

    2012-01-01

    Electric distribution systems are experiencing power quality issues of extended reduced voltage due to fault-induced delayed voltage recovery (FIDVR). FIDVR occurs in part because modern air conditioner (A/C) and heat pump compressor motors are much more susceptible to stalling during a voltage sag or dip such as a sub-transmission fault. They are more susceptible than older A/C compressor motors due to the low inertia of these newer and more energy efficient motors. There is a concern that these local reduced voltage events on the distribution system will become more frequent and prevalent and will combine over larger areas and challenge transmission system voltage and ultimately power grid reliability. The Distributed Energy Communications and Controls (DECC) Laboratory at Oak Ridge National Laboratory (ORNL) has been employed to (1) test, (2) characterize and (3) model the A/C stall phenomenon.

  9. MHK Technologies/Ocean Powered Compressed Air Stations | Open...

    Open Energy Info (EERE)

    Description The Ocean Powered Compressed Air Station is a point absorber that uses an air pump to force air to a landbased generator The device only needs 4m water depth and...

  10. ESPC Success Story - Dyess Air Force Base

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

    DYESS AIR FORCE BASE DYESS, TEXAS Water Conservation and Green Energy ESPC SUCCESS STORY Dyess Air Force Base and surrounding west Texas has been under extreme-drought water restrictions for years. To ease the stress on the nearby city of Abilene's potable water supply, Dyess began using the city's effluent water for irrigation. They arranged to use existing oil pipelines to economically transport the water 7 miles from the city to the base. Dyess also entered into an energy savings performance

  11. Hot air drum evaporator

    DOE Patents [OSTI]

    Black, Roger L. (Idaho Falls, ID)

    1981-01-01

    An evaporation system for aqueous radioactive waste uses standard 30 and 55 gallon drums. Waste solutions form cascading water sprays as they pass over a number of trays arranged in a vertical stack within a drum. Hot dry air is circulated radially of the drum through the water sprays thereby removing water vapor. The system is encased in concrete to prevent exposure to radioactivity. The use of standard 30 and 55 gallon drums permits an inexpensive compact modular design that is readily disposable, thus eliminating maintenance and radiation build-up problems encountered with conventional evaporation systems.

  12. Boiler Upgrades and Decentralizing Steam Systems Save Water and...

    Office of Environmental Management (EM)

    Energy at Naval Air Station Oceana Boiler Upgrades and Decentralizing Steam Systems Save Water and Energy at Naval Air Station Oceana Case study details Naval Air Station Oceana...

  13. Time delay spectrum conditioner

    DOE Patents [OSTI]

    Greiner, Norman R. (Los Alamos, NM)

    1980-01-01

    A device for delaying specified frequencies of a multiple frequency laser beam. The device separates the multiple frequency beam into a series of spatially separated single frequency beams. The propagation distance of the single frequency beam is subsequently altered to provide the desired delay for each specific frequency. Focusing reflectors can be utilized to provide a simple but nonadjustable system or, flat reflectors with collimating and focusing optics can be utilized to provide an adjustable system.

  14. 2015-11-12 Proposed Rulemaking Regarding Enforcement of Regional Standards

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

    for Central Air Conditioners | Department of Energy 1-12 Proposed Rulemaking Regarding Enforcement of Regional Standards for Central Air Conditioners 2015-11-12 Proposed Rulemaking Regarding Enforcement of Regional Standards for Central Air Conditioners PDF icon Central Air Conditioners_Enforcement of Regional Standards_NOPR.pdf More Documents & Publications Enforcement Policy: Split-System Central Air Conditioners Without HSVC Air Conditioner Regional Standards Brochure ISSUANCE

  15. EA-0819: Final Environmental Assessment

    Broader source: Energy.gov [DOE]

    Proposed Energy Conservation Standards for Eight Types of Consumer Products: Room Air Conditioners, Water Heaters, Direct Heating Equipment, Mobile Home Furnaces, Ranges and Ovens, Pool Heaters, Fluorescent Ballasts, and Television Sets

  16. What do the DOE Zero Energy Ready Home Program Specs Actually...

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

    ... conditioners, air-source heat pumps, and water-source (i.e., geothermal) heat pumps up to ... In other words, under Revision 07, if a home's heatingcooling system happens to be a ...

  17. Appliance Rebate Program Still Buzzing in the Beehive State

    Broader source: Energy.gov [DOE]

    Utah's appliance rebate program, known as Cash for Appliances Utah, distributes rebates across the state ranging from $30-$300 for ENERGY STAR appliances - including washers, furnaces, storage and tankless water heaters, and air conditioners.

  18. Tax Credits, Rebates & Savings | Department of Energy

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

    water heaters, and appliance recycling. Heat pumps and air conditioners must have a SEER rating greater than or equal to 14. Customers who install an energy efficiency heat pump...

  19. Rebate program brings 16,300 rebates to Sooner State

    Broader source: Energy.gov [DOE]

    Oklahoma's Appliance Rebate Program swept through the plains in May, providing residents a break on upfront appliance costs and ensuring long-term energy savings. Oklahomans claimed more than 16,300 rebates in less than a month on ENERGY STAR refrigerators, clothes washers, single room air conditioners, water heathers, central air conditioners, air-source heat pumps, furnaces and ground-source heat pumps.

  20. Anoka Municipal Utility - Residential Energy Efficiency Rebate...

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

    Dehumidifiers Ceiling Fan Lighting Air conditioners Other EE LED Lighting Maximum Rebate Room Air Conditioner: limit of 2 units per account Lighting: limit of 15 per...

  1. Laboratory Performance Testing of Residential Window Mounted...

    Energy Savers [EERE]

    Laboratory Performance Testing of Residential Window Mounted Air Conditioners Laboratory Performance Testing of Residential Window Mounted Air Conditioners This presentation was...

  2. Tax Credits, Rebates & Savings | Department of Energy

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

    Filter by savings category: Building Insulation (105) Apply Building Insulation filter Windows (102) Apply Windows filter Air conditioners (85) Apply Air conditioners filter...

  3. Tax Credits, Rebates & Savings | Department of Energy

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

    Furnaces (11) Apply Furnaces filter Roofs (11) Apply Roofs filter Windows (11) Apply Windows filter Air conditioners (10) Apply Air conditioners filter Caulking...

  4. Tax Credits, Rebates & Savings | Department of Energy

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

    Insulation filter Heat Pumps (10) Apply Heat Pumps filter Roofs (10) Apply Roofs filter Windows (10) Apply Windows filter Air conditioners (9) Apply Air conditioners filter Duct...

  5. Tax Credits, Rebates & Savings | Department of Energy

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

    filter Heat Pumps (10) Apply Heat Pumps filter Lighting (10) Apply Lighting filter Windows (10) Apply Windows filter Air conditioners (9) Apply Air conditioners filter...

  6. Tax Credits, Rebates & Savings | Department of Energy

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

    pending approval (12) Apply CustomOthers pending approval filter Windows (11) Apply Windows filter Air conditioners (10) Apply Air conditioners filter Boilers (10) Apply...

  7. Air conditioning apparatus

    SciTech Connect (OSTI)

    Ouchi, Y.; Otoshi, Sh.

    1985-04-09

    The air conditioning apparatus according to the invention comprises an absorption type heat pump comprising a system including an absorber, a regenerator, a condenser and an evaporator. A mixture of lithium bromide and zinc chloride is used as an absorbent which is dissolved to form an absorbent solution into a mixed solvent having a ratio by weight of methanol to water, the ratio falling in a range between 0.1 and 0.3. Said solution is circulated through the system.

  8. hickam air force base

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

    hickam air force base - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced

  9. Improving Air Quality with Solar Energy; U.S. DOE Clean Energy and Air Quality Integration Initiative Fact Sheet Series

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

    Air Quality with Solar Energy Many states are seeking additional air pollution control strategies. Zero-emission solar technologies, such as solar electricity and solar water heating, can help air quality and energy offcials in cities, states, and federal agencies improve air quality, achieve Clean Air Act goals, and reduce pollution control costs for both industry and taxpayers. Solar technologies provide energy for heating, cooling, and lighting homes and heating water without any direct

  10. Water-heating dehumidifier

    DOE Patents [OSTI]

    Tomlinson, John J.

    2006-04-18

    A water-heating dehumidifier includes a refrigerant loop including a compressor, at least one condenser, an expansion device and an evaporator including an evaporator fan. The condenser includes a water inlet and a water outlet for flowing water therethrough or proximate thereto, or is affixed to the tank or immersed into the tank to effect water heating without flowing water. The immersed condenser design includes a self-insulated capillary tube expansion device for simplicity and high efficiency. In a water heating mode air is drawn by the evaporator fan across the evaporator to produce cooled and dehumidified air and heat taken from the air is absorbed by the refrigerant at the evaporator and is pumped to the condenser, where water is heated. When the tank of water heater is full of hot water or a humidistat set point is reached, the water-heating dehumidifier can switch to run as a dehumidifier.

  11. Long-Term Oxidation of Candidate Cast Iron and Advanced Austenitic Stainless Steel Exhaust System Alloys from 650-800 C in Air with Water Vapor

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Brady, Michael P; Muralidharan, Govindarajan; Leonard, Donovan N; Haynes, James A

    2014-01-01

    The oxidation behavior of SiMo cast iron, Ni-resist D5S cast iron, cast chromia-forming austenitic stainless steels of varying Cr/Ni content based on CF8C plus, HK, and HP, and a developmental cast alumina-forming austenitic (AFA) stainless steel of interest for diesel exhaust system components were studied for up to 5000 h at 650-800 C in air with 10% H2O. At 650 C, the Ni-resist D5S exhibited moderately better oxidation resistance than did the SiMo cast iron. However, the D5S suffered from oxide scale spallation issues at 700 C and higher, whereas the oxide scales formed on SiMo cast iron remained adherentmore » from 700-800 C despite oxide scales hundreds of microns thick. The oxidation of the SiMo cast iron exhibited unusual temperature dependence, with periods of slower oxidation kinetics at 750-800 C compared to 650-700 C due to continuous silica-rich scale formation at the higher temperatures. The oxidation of the cast chromia-forming austenitics trended with the level of Cr and Ni additions, with small mass losses consistent with Cr oxy-hydroxide volatilization processes for the higher 25Cr/25-35Ni HK and HP type alloys, and transition to rapid Fe-base oxide formation and scale spallation in the lower 19Cr/12Ni CF8C plus type alloy. In contrast, small positive mass changes consistent with protective alumina scale formation were observed for the cast AFA alloy under all conditions studied. Implications of these findings for diesel exhaust system components are discussed.« less

  12. Federal Energy and Water Management Awards 2014

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

    Air Force Hurlburt Field, Florida In FY 2013 Hurlburt Field Air Force Base modified its water reuse system to improve capacity, resulting in savings of 13 million gallons of water...

  13. Rapid microwave hydrothermal synthesis of ZnGa{sub 2}O{sub 4} with high photocatalytic activity toward aromatic compounds in air and dyes in liquid water

    SciTech Connect (OSTI)

    Sun Meng; Li Danzhen; Zhang Wenjuan; Chen Zhixin; Huang Hanjie; Li Wenjuan; He Yunhui; Fu Xianzhi

    2012-06-15

    ZnGa{sub 2}O{sub 4} was synthesized from Ga(NO{sub 3}){sub 3} and ZnCl{sub 2} via a rapid and facile microwave-assisted hydrothermal method. The photocatalytic properties of the as-prepared ZnGa{sub 2}O{sub 4} were evaluated by the degradation of pollutants in air and aqueous solution under ultraviolet (UV) light illumination. The results demonstrated that ZnGa{sub 2}O{sub 4} had exhibited efficient photocatalytic activities higher than that of commercial P25 (Degussa Co.) in the degradation of benzene, toluene, and ethylbenzene, respectively. In the liquid phase degradation of dyes (methyl orange, Rhodamine B, and methylene blue), ZnGa{sub 2}O{sub 4} has also exhibited remarkable activities higher than that of P25. After 32 min of UV light irradiation, the decomposition ratio of methyl orange (10 ppm, 150 mL) over ZnGa{sub 2}O{sub 4} (0.06 g) was up to 99%. The TOC tests revealed that the mineralization ratio of MO (10 ppm, 150 mL) was 88.1% after 90 min of reaction. A possible mechanism of the photocatalysis over ZnGa{sub 2}O{sub 4} was also proposed. - Graphical abstract: In the degradation of RhB under UV light irradiation, ZnGa{sub 2}O{sub 4} had exhibited efficient photo-activity, and after only 24 min of irradiation the decomposition ratio was up to 99.8%. Highlights: Black-Right-Pointing-Pointer A rapid and facile M-H method to synthesize ZnGa{sub 2}O{sub 4} photocatalyst. Black-Right-Pointing-Pointer The photocatalyst exhibits high activity toward benzene and dyes. Black-Right-Pointing-Pointer The catalyst possesses more surface hydroxyl sites than TiO{sub 2} (P25). Black-Right-Pointing-Pointer Deep oxidation of different aromatic compounds and dyes over catalyst.

  14. Air breathing direct methanol fuel cell

    DOE Patents [OSTI]

    Ren, Xiaoming (Los Alamos, NM); Gottesfeld, Shimshon (Los Alamos, NM)

    2002-01-01

    An air breathing direct methanol fuel cell is provided with a membrane electrode assembly, a conductive anode assembly that is permeable to air and directly open to atmospheric air, and a conductive cathode assembly that is permeable to methanol and directly contacting a liquid methanol source. Water loss from the cell is minimized by making the conductive cathode assembly hydrophobic and the conductive anode assembly hydrophilic.

  15. Membrane Based Air Conditioning | Department of Energy

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

    Membrane Based Air Conditioning Membrane Based Air Conditioning Lead Performer: Dais Analytic Corporation - Odessa, FL Partners: - Oak Ridge National Laboratory - Oak Ridge, TN - Xergy Inc. - Seaford, DE DOE Total Funding: $1,500,000 Cost Share: $300,000 Project Term: October 1, 2015 - September 30, 2016 Funding Opportunity: Building Energy Efficiency Frontiers and Innovation (BENEFIT) - 2015 Project Objective NanoAir HVAC technology transfers water molecules through a patented nanostructured

  16. Researching power plant water recovery

    SciTech Connect (OSTI)

    2008-04-01

    A range of projects supported by NETl under the Innovations for Existing Plant Program are investigating modifications to power plant cooling systems for reducing water loss, and recovering water from the flue gas and the cooling tower. This paper discusses two technologies showing particular promise condense water that is typically lost to evaporation, SPX technologies' Air2Air{sup trademark} condenses water from a cooling tower, while Lehigh University's process condenses water and acid in flue gas. 3 figs.

  17. ARM Site Atmospheric State Best Estimates for AIRS Validation

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

    spectral resolution infrared sounder on the earth observing plan (EOS) Aqua platform. Temperature and water vapor profile retrievals from AIRS are expected to have very high...

  18. FSM 2500 Watershed and Air Management | Open Energy Information

    Open Energy Info (EERE)

    FSM 2500 Watershed and Air ManagementLegal Abstract Forest Service manual setting forth policy for protection and development of soil and water resources shall be components...

  19. 2013 Federal Energy and Water Management Award Winner David Morin

    Broader source: Energy.gov [DOE]

    Poster features 2013 Federal Energy and Water Management Award winner David Morin of the U.S. Air Force's Laughlin Air Force Base in Texas.

  20. Primary zone air proportioner

    DOE Patents [OSTI]

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

    1982-10-12

    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.

  1. UV water disinfector

    DOE Patents [OSTI]

    Gadgil, A.; Garud, V.

    1998-07-14

    A UV disinfector with a gravity driven feed water delivery system and an air-suspended bare UV lamp are disclosed. The disinfector is hydrodynamically optimized with a laminerizing, perforated baffle wall, beveled treatment chamber, and outlet weir. 7 figs.

  2. UV water disinfector

    DOE Patents [OSTI]

    Gadgil, Ashok (El Cerrito, CA); Garud, Vikas (Bombay, IN)

    1998-07-14

    A UV disinfector with a gravity driven feed water delivery system, and an air-suspended bare UV lamp. The disinfector is hydrodynamically optimized with a laminerizing, perforated baffle wall, beveled treatment chamber, and outlet weir.

  3. Scientists ignite aluminum water mix

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

    Scientists ignite aluminum water mix Scientists ignite aluminum water mix Don't worry, that beer can you're holding is not going to spontaneously burst into flames. June 30, 2014 Los Alamos National Laboratory chemist Bryce Tappan ignites a small quantity of aluminum nanoparticle water mixture. In open air, the compound burns like a Fourth of July sparkler. Los Alamos National Laboratory chemist Bryce Tappan ignites a small quantity of aluminum nanoparticle water mixture. In open air, the

  4. Best Management Practice #10: Cooling Tower Management

    Broader source: Energy.gov [DOE]

    Cooling towers dissipate heat from recirculating water used to cool chillers, air conditioners, or other process equipment to the ambient air. Heat is rejected to the environment from cooling towers through the process of evaporation. Therefore, by design, cooling towers use significant amounts of water.

  5. Hybrid and Advanced Air Cooling | Department of Energy

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

    DOE Geothermal Program Peer Review 2010 - Presentation. This project will identify and analyze advanced air cooling strategies thatallow air-cooled geothermal power plants to maintain a high electric power output during periods of high air dry bulb temperatures while minimizing water consumption. PDF icon specialized_bharathan_advanced_cooling.pdf More Documents & Publications Hybird Geothemal-Solar Air-Cooled Condensers for Next Generation Power Plants Geothermal Resources and Transmission

  6. Determining the Right Air Quality for Your Compressed Air System |

    Office of Environmental Management (EM)

    Department of Energy Determining the Right Air Quality for Your Compressed Air System Determining the Right Air Quality for Your Compressed Air System This tip sheet outlines the main factors for determining the right air quality for compressed air systems. COMPRESSED AIR TIP SHEET #5 PDF icon Determining the Right Air Quality for Your Compressed Air System (August 2004) More Documents & Publications Effect of Intake on Compressor Performance Improving Compressed Air System Performance:

  7. Hollow-Fiber Membrane Compressed Air Drying System | Department of Energy

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

    Hollow-Fiber Membrane Compressed Air Drying System Hollow-Fiber Membrane Compressed Air Drying System New Membrane Allows Drying of Compressed Air at Lower Energy and Higher Productivity With the support of a NICE3 grant, a new hollow-fiber membrane for dehydrating gases has been developed by Air Products and Chemicals, Inc. The membrane has 5 times higher water vapor permeation coefficient and 25 times higher water vapor/air selectivity compared with first-generation membrane dryers. The

  8. Tax Credits, Rebates & Savings | Department of Energy

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

    Government, Agricultural, Institutional Savings Category: Lighting, Lighting ControlsSensors, Chillers, Heat Pumps, Air conditioners, Compressed air, Energy Mgmt. Systems...

  9. Tax Credits, Rebates & Savings | Department of Energy

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

    Industrial, Residential, Multifamily Residential Savings Category: Lighting, Heat Pumps, Air conditioners, CaulkingWeather-stripping, DuctAir sealing, Building...

  10. Tax Credits, Rebates & Savings | Department of Energy

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

    Dishwasher, RefrigeratorsFreezers, Equipment Insulation, Lighting, Lighting ControlsSensors, Heat Pumps, Air conditioners, Compressed air, Programmable Thermostats, Energy...

  11. Tax Credits, Rebates & Savings | Department of Energy

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

    Lighting, Lighting ControlsSensors, Chillers, Heat Pumps, Air conditioners, Heat recovery, Compressed air, Programmable Thermostats, Windows, Motors, Motor VFDs,...

  12. Unitil (Electric)- Residential Energy Efficiency Programs

    Broader source: Energy.gov [DOE]

    The Energy Star Appliance Program provides rebates for clothes washers, air purifiers, refrigerators, and room air conditioners.

  13. Tax Credits, Rebates & Savings | Department of Energy

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

    Lighting ControlsSensors, Chillers, Heat Pumps, Air conditioners, Compressed air, Programmable Thermostats, Building Insulation, Windows, Roofs, Motor VFDs, Agricultural...

  14. Tax Credits, Rebates & Savings | Department of Energy

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

    Heat Pumps, Air conditioners, Programmable Thermostats, DuctAir sealing, Other EE Energy Optimization (Electric)- Residential Efficiency Program Energy Optimization...

  15. Development of Refrigerant Change Indicator and Dirty Air Filter Sensor

    SciTech Connect (OSTI)

    Mei, V.

    2003-06-24

    The most common problems affecting residential and light commercial heating, ventilation, and air-conditioning (HVAC) systems are slow refrigerant leaks and dirty air filters. Equipment users are usually not aware of a problem until most of the refrigerant has escaped or the air filter is clogged with dirt. While a dirty air filter can be detected with a technology based on the air pressure differential across the filter, such as a ''whistling'' indicator, it is not easy to incorporate this technology into existing HVAC diagnostic equipment. Oak Ridge National Laboratory is developing a low-cost, nonintrusive refrigerant charge indicator and dirty air filter detection sensor. The sensors, based on temperature measurements, will be inexpensive and easy to incorporate into existing heat pumps and air conditioners. The refrigerant charge indicator is based on the fact that when refrigerant starts to leak, the evaporator coil temperature starts to drop and the level of liquid subcooling drops. When the coil temperature or liquid subcooling drops below a preset reading, a signal, such as a yellow warning light, can be activated to warn the equipment user that the system is undercharged. A further drop of coil temperature or liquid subcooling below another preset reading would trigger a second warning signal, such as a red warning light, to warn the equipment user that the unit now detects a leak and immediate action should be taken. The warning light cannot be turned off until it is re-set by a refrigeration repairman. To detect clogged air filters, two additional temperature sensors can be applied, one each across the evaporator. When the air filter is accumulating buildup, the temperature differential across the evaporator will increase because of the reduced airflow. When the temperature differential reaches a pre-set reading, a signal will be sent to the equipment user that the air filter needs to be changed. A traditional refrigerant charge indicator requires intrusion into the system to measure the refrigerant high-side and low-side pressures. Once the pressures are known, based on the equipment's refrigerant charging chart? or in most cases, based on the technician's experience? the refrigerant charging status is determined. However, there is a catch: by the time a refrigeration technician is called, most of the refrigerant has already escaped into the atmosphere. The new technology provides a real-time warning so that when, say, 20% of the refrigerant has leaked, the equipment users will be warned, even though the equipment is still functioning properly at rated capacity. Temperature sensors are becoming very accurate and very low in cost, compared with pressure sensors. Using temperature sensors to detect refrigerant charge status is inherently nonintrusive, inexpensive, and accurate. With the addition of two temperature sensors for detecting dirty air filters, the capability of the diagnostic equipment is further enhanced with very little added cost. This report provides laboratory test data on the change of indoor coil refrigerant temperature and subcooling as a function of refrigerant charge for a 2-ton split heat pump system. The data can be used in designing the indicators for refrigerant loss and dirty air filter sensors.

  16. Molded polymer solar water heater

    DOE Patents [OSTI]

    Bourne, Richard C.; Lee, Brian E.

    2004-11-09

    A solar water heater has a rotationally-molded water box and a glazing subassembly disposed over the water box that enhances solar gain and provides an insulating air space between the outside environment and the water box. When used with a pressurized water system, an internal heat exchanger is integrally molded within the water box. Mounting and connection hardware is included to provide a rapid and secure method of installation.

  17. ARM - Field Campaign - AIRS Validation Sonde Support

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

    Sonde Support ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : AIRS Validation Sonde Support 2002.07.14 - 2002.11.30 Lead Scientist : Ted Cress For data sets, see below. Abstract Additional radiosonde launches from Barrow are timed to coincide with overpasses of the Aqua satellite carrying the AIRS sensor for the purpose of providing in situ validation data for development and testing of AIRS water vapor

  18. ARM - Field Campaign - AIRS validation IOP

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

    validation IOP ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : AIRS validation IOP 2002.07.15 - 2002.10.31 Lead Scientist : Barry Lesht For data sets, see below. Abstract Additional radiosonde launches from Barrow were timed to coincide with overpasses of the Aqua satellite carrying the AIRS sensor for the purpose of providing in situ validation data for development and testing of AIRS water vapor

  19. Simple Interactive Models for better air quality (SIM-air) |...

    Open Energy Info (EERE)

    Interactive Models for better air quality (SIM-air) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Simple Interactive Models (SIM-air) AgencyCompany Organization:...

  20. ARM - Measurement - Precipitable water

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

    govMeasurementsPrecipitable water ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Precipitable water Total amount of water vapor in a vertical column of air, often expressed as the depth of the layer of water that would be formed if all the water vapor were condensed to liquid water. Categories Atmospheric State Instruments The above measurement is considered scientifically relevant for the following

  1. Minimize Compressed Air Leaks

    Broader source: Energy.gov [DOE]

    This tip sheet outlines a strategy for compressed air leak detection and provides a formula for cost savings calculations.

  2. ISOTHERMAL AIR INGRESS VALIDATION EXPERIMENTS

    SciTech Connect (OSTI)

    Chang H Oh; Eung S Kim

    2011-09-01

    Idaho National Laboratory carried out air ingress experiments as part of validating computational fluid dynamics (CFD) calculations. An isothermal test loop was designed and set to understand the stratified-flow phenomenon, which is important as the initial air flow into the lower plenum of the very high temperature gas cooled reactor (VHTR) when a large break loss-of-coolant accident occurs. The unique flow characteristics were focused on the VHTR air-ingress accident, in particular, the flow visualization of the stratified flow in the inlet pipe to the vessel lower plenum of the General Atomics Gas Turbine-Modular Helium Reactor (GT-MHR). Brine and sucrose were used as heavy fluids, and water was used to represent a light fluid, which mimics a counter current flow due to the density difference between the stimulant fluids. The density ratios were changed between 0.87 and 0.98. This experiment clearly showed that a stratified flow between simulant fluids was established even for very small density differences. The CFD calculations were compared with experimental data. A grid sensitivity study on CFD models was also performed using the Richardson extrapolation and the grid convergence index method for the numerical accuracy of CFD calculations . As a result, the calculated current speed showed very good agreement with the experimental data, indicating that the current CFD methods are suitable for predicting density gradient stratified flow phenomena in the air-ingress accident.

  3. Department of Energy Opens Appliance Standards Investigation for Certain

    Office of Environmental Management (EM)

    Air Con International Air Conditioners and Heat Pumps | Department of Energy Opens Appliance Standards Investigation for Certain Air Con International Air Conditioners and Heat Pumps Department of Energy Opens Appliance Standards Investigation for Certain Air Con International Air Conditioners and Heat Pumps March 26, 2010 - 6:55pm Addthis WASHINGTON, DC - The U.S. Department of Energy announced today that it has opened an investigation to determine whether certain air conditioners and heat

  4. Distribution Category: Water R

    Office of Scientific and Technical Information (OSTI)

    Distribution Category: Water R e a c t o r Safety- R e s e a r c h - - A n a l y s i s ... 8 10 I TOTAL VOLUMETRIC FLUX, ms Fig. 9. Fully Developed Air-Water Flow Data.30 ANL Neg. ...

  5. Air Sparging Decision Tool

    Energy Science and Technology Software Center (OSTI)

    1996-06-10

    The Air Sparging Decision Tool is a computer decision aid to help environmental managers and field practitioners in evaluating the applicability of air sparging to a wide range of sites and for refining the operation of air sparging systems. The program provides tools for the practitioner to develop the conceptual design for an air sparging system suitable for the identified site. The Tool provides a model of the decision making process, not a detailed designmore » of air sparging systems. The Tool will quickly and cost effectively assist the practitioner in screening for applicability of the technology at a proposed site.« less

  6. Water-Heating Dehumidifier - Energy Innovation Portal

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

    Industrial Technologies Industrial Technologies Building Energy Efficiency Building Energy Efficiency Find More Like This Return to Search Water-Heating Dehumidifier Oak Ridge National Laboratory Contact ORNL About This Technology Technology Marketing SummaryA small appliance developed at ORNL dehumidifies air and then recycles heat to warm water in a water heater. The device circulates cool, dry air in summer and warm air in winter. In addition, the invention can cut the energy required to run

  7. Mitigating the Impacts of Uncontrolled Air Flow on Indoor Environmental Quality and Energy Demand in Non-Residential Buildings

    SciTech Connect (OSTI)

    Hugh I. Henderson; Jensen Zhang; James B. Cummings; Terry Brennan

    2006-07-31

    This multi-faceted study evaluated several aspects of uncontrolled air flows in commercial buildings in both Northern and Southern climates. Field data were collected from 25 small commercial buildings in New York State to understand baseline conditions for Northern buildings. Laboratory wall assembly testing was completed at Syracuse University to understand the impact of typical air leakage pathways on heat and moisture transport within wall assemblies for both Northern and Southern building applications. The experimental data from the laboratory tests were used to verify detailed heat and moisture (HAM) simulation models that could be used to evaluate a wider array of building applications and situations. Whole building testing at FSEC's Building Science Laboratory (BSL) systematically evaluated the energy and IAQ impacts of duct leakage with various attic and ceiling configurations. This systematic test carefully controlled all aspects of building performance to quantify the impact of duct leakage and unbalanced flow. The newest features of the EnergyPlus building simulation tool were used to model the combined impacts of duct leakage, ceiling leakage, unbalanced flows, and air conditioner performance. The experimental data provided the basis to validate the simulation model so it could be used to study the impact of duct leakage over a wide range of climates and applications. The overall objective of this project was to transfer work and knowledge that has been done on uncontrolled air flow in non-residential buildings in Florida to a national basis. This objective was implemented by means of four tasks: (1) Field testing and monitoring of uncontrolled air flow in a sample of New York buildings; (2) Detailed wall assembly laboratory measurements and modeling; (3) Whole building experiments and simulation of uncontrolled air flows; and (4) Develop and implement training on uncontrolled air flows for Practitioners in New York State.

  8. Determining the Right Air Quality for Your Compressed Air System - Compressed Air Tip Sheet #5

    SciTech Connect (OSTI)

    2004-08-01

    BestPractices Program tip sheet discussing how to determine the right air quality for compressed air systems.

  9. Promising Technology: Heat Pump Water Heaters

    Broader source: Energy.gov [DOE]

    A heat pump water heater uses electricity to transfer heat from the ambient air to stored water, as opposed to an electric resistance water heater, which uses electricity to generate the heat directly. This enables the heat pump water heater to be 2 to 3 times as efficient as an electric resistance water heater.

  10. Personal continuous air monitor

    DOE Patents [OSTI]

    Morgan, Ronald G.; Salazar, Samuel A.

    2000-01-01

    A personal continuous air monitor capable of giving immediate warning of the presence of radioactivity has a filter/detector head to be worn in the breathing zone of a user, containing a filter mounted adjacent to radiation detectors, and a preamplifier. The filter/detector head is connected to a belt pack to be worn at the waist or on the back of a user. The belt pack contains a signal processor, batteries, a multichannel analyzer, a logic circuit, and an alarm. An air pump also is provided in the belt pack for pulling air through the filter/detector head by way of an air tube.

  11. Fact Sheet: Isothermal Compressed Air Energy Storage (August 2013) |

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

    Department of Energy Isothermal Compressed Air Energy Storage (August 2013) Fact Sheet: Isothermal Compressed Air Energy Storage (August 2013) SustainX will demonstrate an isothermal compressed air energy storage (ICAES) system. The system captures the heat from compression in water and stores the captured heat until it is needed again for expansion. Storing the captured heat eliminates the need for a gas combustion turbine and improves efficiency. For more information about how OE performs

  12. Synthetic fuel concept to steal CO2 from air

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

    concept, called Green Freedom(tm), for large-scale production of carbon-neutral, sulfur-free fuels and organic chemicals from air and water. February 12, 2008 Los Alamos National...

  13. Recirculating electric air filter

    DOE Patents [OSTI]

    Bergman, W.

    1985-01-09

    An electric air filter cartridge has a cylindrical inner high voltage electrode, a layer of filter material, and an outer ground electrode formed of a plurality of segments moveably connected together. The outer electrode can be easily opened to remove or insert filter material. Air flows through the two electrodes and the filter material and is exhausted from the center of the inner electrode.

  14. Portable oven air circulator

    DOE Patents [OSTI]

    Jorgensen, Jorgen A. (Bloomington, MN); Nygren, Donald W. (Minneapolis, MN)

    1983-01-01

    A portable air circulating apparatus for use in cooking ovens which is used to create air currents in the oven which transfer heat to cooking foodstuffs to promote more rapid and more uniform cooking or baking, the apparatus including a motor, fan blade and housing of metallic materials selected from a class of heat resistant materials.

  15. Recirculating electric air filter

    DOE Patents [OSTI]

    Bergman, Werner (Pleasanton, CA)

    1986-01-01

    An electric air filter cartridge has a cylindrical inner high voltage eleode, a layer of filter material, and an outer ground electrode formed of a plurality of segments moveably connected together. The outer electrode can be easily opened to remove or insert filter material. Air flows through the two electrodes and the filter material and is exhausted from the center of the inner electrode.

  16. Hot air drum evaporator. [Patent application

    DOE Patents [OSTI]

    Black, R.L.

    1980-11-12

    An evaporation system for aqueous radioactive waste uses standard 30 and 55 gallon drums. Waste solutions form cascading water sprays as they pass over a number of trays arranged in a vertical stack within a drum. Hot dry air is circulated radially of the drum through the water sprays thereby removing water vapor. The system is encased in concrete to prevent exposure to radioactivity. The use of standard 30 and 55 gallon drums permits an inexpensive compact modular design that is readily disposable, thus eliminating maintenance and radiation build-up problems encountered with conventional evaporation systems.

  17. Air Handler Condensate Recovery at the Environmental Protection Agency's

    Energy Savers [EERE]

    Science and Ecosystem Support Division | Department of Energy Handler Condensate Recovery at the Environmental Protection Agency's Science and Ecosystem Support Division Air Handler Condensate Recovery at the Environmental Protection Agency's Science and Ecosystem Support Division Case study details EPA's decision to address water conservation and management for its Science and Ecosystem Support Division due to a severe drought. The plan aimed to reduce potable water usage through an air

  18. Water augmented indirectly-fired gas turbine systems and method

    DOE Patents [OSTI]

    Bechtel, Thomas F. (Lebanon, PA); Parsons, Jr., Edward J. (Morgantown, WV)

    1992-01-01

    An indirectly-fired gas turbine system utilizing water augmentation for increasing the net efficiency and power output of the system is described. Water injected into the compressor discharge stream evaporatively cools the air to provide a higher driving temperature difference across a high temperature air heater which is used to indirectly heat the water-containing air to a turbine inlet temperature of greater than about 1,000.degree. C. By providing a lower air heater hot side outlet temperature, heat rejection in the air heater is reduced to increase the heat recovery in the air heater and thereby increase the overall cycle efficiency.

  19. Renewables and air quality

    SciTech Connect (OSTI)

    Wooley, D.R.

    2000-08-01

    The US heavy reliance on fossil fuels is a central obstacle to improving air quality and preventing catastrophic climate change. To solve this problem will require a combination of financial incentives and market rules that strongly encourage development of renewable energy resources to meet electric power demand. One promising policy option is to allow renewable energy resources to directly participate in air pollution emission trading mechanisms. Currently, the clean air benefits of renewable energy generally go unrecognized by regulators, under-appreciated by consumers and uncompensated by markets. Renewable energy is a key clean air alternative to conventional electricity generation, and the development of renewables could be stimulated by changes to the Clean Air Act's emissions trading programs. As Congress revisits clean air issues over the next several years, renewable energy representatives could push for statutory changes that reward the renewable energy industry for the air quality benefits it provides. By also becoming involved in key US Environmental Protection Agency (EPA) and state rule-making cases, the renewables industry could influence the structure of emissions trading programs and strengthen one of the most persuasive arguments for wind, solar and biomass energy development.

  20. Air heating system

    DOE Patents [OSTI]

    Primeau, John J. (19800 Seminole Rd., Euclid, OH 44117)

    1983-03-01

    A self-starting, fuel-fired, air heating system including a vapor generator, a turbine, and a condenser connected in a closed circuit such that the vapor output from the vapor generator is conducted to the turbine and then to the condenser where it is condensed for return to the vapor generator. The turbine drives an air blower which passes air over the condenser for cooling the condenser. Also, a condensate pump is driven by the turbine. The disclosure is particularly concerned with the provision of heat exchanger and circuitry for cooling the condensed fluid output from the pump prior to its return to the vapor generator.

  1. Air ejector augmented compressed air energy storage system

    DOE Patents [OSTI]

    Ahrens, F.W.; Kartsounes, G.T.

    Energy is stored in slack demand periods by charging a plurality of underground reservoirs with air to the same peak storage pressure, during peak demand periods throttling the air from one storage reservoir into a gas turbine system at a constant inlet pressure until the air presure in the reservoir falls to said constant inlet pressure, thereupon permitting air in a second reservoir to flow into said gas turbine system while drawing air from the first reservoir through a variable geometry air ejector and adjusting said variable geometry air ejector, said air flow being essentially at the constant inlet pressure of the gas turbine system.

  2. Air ejector augmented compressed air energy storage system

    DOE Patents [OSTI]

    Ahrens, Frederick W.; Kartsounes, George T.

    1980-01-01

    Energy is stored in slack demand periods by charging a plurality of underground reservoirs with air to the same peak storage pressure, during peak demand periods throttling the air from one storage reservoir into a gas turbine system at a constant inlet pressure until the air pressure in the reservoir falls to said constant inlet pressure, thereupon permitting air in a second reservoir to flow into said gas turbine system while drawing air from the first reservoir through a variable geometry air ejector and adjusting said variable geometry air ejector, said air flow being essentially at the constant inlet pressure of the gas turbine system.

  3. Shale Gas Development Challenges: Water | Department of Energy

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

    Water Shale Gas Development Challenges: Water PDF icon Shale Gas Development Challenges: Water More Documents & Publications Natural Gas from Shale: Questions and Answers Shale Gas Development Challenges: Fracture Fluids Shale Gas Development Challenges: Air

  4. Thermoelectrically cooled water trap

    DOE Patents [OSTI]

    Micheels, Ronald H.

    2006-02-21

    A water trap system based on a thermoelectric cooling device is employed to remove a major fraction of the water from air samples, prior to analysis of these samples for chemical composition, by a variety of analytical techniques where water vapor interferes with the measurement process. These analytical techniques include infrared spectroscopy, mass spectrometry, ion mobility spectrometry and gas chromatography. The thermoelectric system for trapping water present in air samples can substantially improve detection sensitivity in these analytical techniques when it is necessary to measure trace analytes with concentrations in the ppm (parts per million) or ppb (parts per billion) partial pressure range. The thermoelectric trap design is compact and amenable to use in a portable gas monitoring instrumentation.

  5. Compressed Air Systems

    Broader source: Energy.gov [DOE]

    There are incentives for variable frequency drive screw compressors (10-40 HP), air receivers/tanks for load/no-load compressors, cycling refrigerated dryers (up to 200 CFM capacity), no-loss...

  6. Breathing zone air sampler

    DOE Patents [OSTI]

    Tobin, John (Bethel Park, PA)

    1989-01-01

    A sampling apparatus is provided which comprises a sampler for sampling air in the breathing zone of a wearer of the apparatus and a support for the sampler preferably in the form of a pair of eyeglasses. The sampler comprises a sampling assembly supported on the frame of the eyeglasses and including a pair of sample transport tubes which are suspended, in use, centrally of the frame so as to be disposed on opposite sides of the nose of the wearer and which each include an inlet therein that, in use, is disposed adjacent to a respective nostril of the nose of the wearer. A filter holder connected to sample transport tubes supports a removable filter for filtering out particulate material in the air sampled by the apparatus. The sample apparatus is connected to a pump for drawing air into the apparatus through the tube inlets so that the air passes through the filter.

  7. Air bag restraint device

    DOE Patents [OSTI]

    Marts, D.J.; Richardson, J.G.

    1995-10-17

    A rear-seat air bag restraint device is disclosed that prevents an individual, or individuals, from continuing violent actions while being transported in a patrol vehicle`s rear seat without requiring immediate physical contact by the law enforcement officer. The air bag is activated by a control switch in the front seat and inflates to independently restrict the amount of physical activity occurring in the rear seat of the vehicle while allowing the officer to safely stop the vehicle. The air bag can also provide the officer additional time to get backup personnel to aid him if the situation warrants it. The bag is inflated and maintains a constant pressure by an air pump. 8 figs.

  8. Air bag restraint device

    DOE Patents [OSTI]

    Marts, Donna J.; Richardson, John G.

    1995-01-01

    A rear-seat air bag restraint device is disclosed that prevents an individual, or individuals, from continuing violent actions while being transported in a patrol vehicle's rear seat without requiring immediate physical contact by the law enforcement officer. The air bag is activated by a control switch in the front seat and inflates to independently restrict the amount of physical activity occurring in the rear seat of the vehicle while allowing the officer to safely stop the vehicle. The air bag can also provide the officer additional time to get backup personnel to aid him if the situation warrants it. The bag is inflated and maintains a constant pressure by an air pump.

  9. Guide to Air Sealing

    SciTech Connect (OSTI)

    2011-02-01

    Air sealing is one of the most cost-effective ways to improve the comfort and energy efficiency of your home. Hire a certified professional contractor for best results.

  10. Water Vapor Experiment Concludes

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

    3 Water Vapor Experiment Concludes The AIRS (atmospheric infrared sounder) Water Vapor Experiment - Ground (AWEX-G) intensive operations period (IOP) at the SGP central facility began on October 27 and ended on November 16, 2003. Researchers David Whiteman and Francis Schmidlin of the National Aeronautics and Space Administration (NASA), Holger Voemel of the National Oceanic and Atmospheric Administration (NOAA), Larry Miloshevich of the National Center for Atmospheric Research, and Barry Lesht

  11. Golden Opportunity: Proposed Penalty (2014-CE-20003)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Golden Opportunity, Inc. failed to certify room air conditioners, central air conditioners/heat pumps, and residential clothes washers as compliant with the applicable energy conservation standards.

  12. Energy Saver 101 Infographic: Home Cooling | Department of Energy

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

    to heat up and temperatures rise, many of us are cranking up the air conditioners to stay cool. It should come as no surprise then that air conditioners use about 5 percent of...

  13. Air Quality | Open Energy Information

    Open Energy Info (EERE)

    Air Quality Jump to: navigation, search Retrieved from "http:en.openei.orgwindex.php?titleAirQuality&oldid612070" Feedback Contact needs updating Image needs updating...

  14. Boiler Upgrades and Decentralizing Steam Systems Save Water and Energy at

    Energy Savers [EERE]

    Naval Air Station Oceana | Department of Energy Boiler Upgrades and Decentralizing Steam Systems Save Water and Energy at Naval Air Station Oceana Boiler Upgrades and Decentralizing Steam Systems Save Water and Energy at Naval Air Station Oceana Boiler Upgrades and Decentralizing Steam Systems Save Water and Energy at Naval Air Station Oceana Case study details Naval Air Station Oceana findings that its heating needs could be met more efficiently by replacing its central plant with a

  15. Compressed Air Storage Strategies | Department of Energy

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

    Storage Strategies Compressed Air Storage Strategies This tip sheet briefly discusses compressed air storage strategies. COMPRESSED AIR TIP SHEET 9 PDF icon Compressed Air Storage ...

  16. Distribution System Audits, Leak Detection, and Repair: Kirtland Air Force Base Leak Detection and Repair Program

    SciTech Connect (OSTI)

    2009-01-14

    Water Best Management Practice #3 Fact Seet: Outlines how a leak detection and repair program helped Kirtland Air Force Base perform distribution system audits, leak detection, and repair to conserve water site-wide.

  17. Tax Credits, Rebates & Savings | Department of Energy

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

    customers. Rebates are available for high efficiency lighting equipment, occupancy sensors, central air conditioners, geothermal heat pumps, windows, appliances, refrigeration...

  18. Tax Credits, Rebates & Savings | Department of Energy

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

    Air conditioners, Programmable Thermostats, Comprehensive MeasuresWhole Building Barron Electric Cooperative- ENERGY STAR Appliance and Energy Efficient Lighting Rebate...

  19. Tax Credits, Rebates & Savings | Department of Energy

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

    Shrewsbury Electric offers rebates on ENERGY STAR appliances. Eligible products include washing machines, dishwashers, refrigerators, and room air conditioners. Customers......

  20. Tax Credits, Rebates & Savings | Department of Energy

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

    air conditioners, geothermal heat pumps, windows, appliances, refrigeration equipment, food service equipment, newly constructed buildings and custom measures. Appliance rebates...