Sample records for usage air-conditioned floorspace

  1. Table HC15.7 Air-Conditioning Usage Indicators by Four Most...

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

    or More Units... 5.4 0.7 Q 0.5 Q Central Air-Conditioning Usage Air-Conditioned Floorspace (Square Feet)...

  2. Table HC6.7 Air-Conditioning Usage Indicators by Number of Household...

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

    9.7 Have Equipment But Do Not Use it... 1.9 0.6 0.5 Q 0.2 0.4 Type of Air-Conditioning Equipment 1, 2 Central System......

  3. "Table HC12.7 Air-Conditioning Usage Indicators by Midwest Census...

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

    "Type of Air-Conditioning Equipment1, 2" "Central System",65.9,17.3,11.3,6 "Without a Heat Pump",53.5,16.2,10.6,5.6 "With a Heat Pump",12.3,1.1,0.8,0.4 "WindowWall...

  4. "Table HC11.7 Air-Conditioning Usage Indicators by Northeast...

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

    "Type of Air-Conditioning Equipment1, 2" "Central System",65.9,6,5.2,0.8 "Without a Heat Pump",53.5,5.5,4.8,0.7 "With a Heat Pump",12.3,0.5,0.4,"Q" "WindowWall...

  5. "Table HC10.7 Air-Conditioning Usage Indicators by U.S. Census...

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

    of Air-Conditioning Equipment1, 2" "Central System",65.9,6,17.3,32.1,10.5 "Without a Heat Pump",53.5,5.5,16.2,23.2,8.7 "With a Heat Pump",12.3,0.5,1.1,9,1.7 "WindowWall...

  6. "Table HC13.7 Air-Conditioning Usage Indicators by South Census...

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

    of Air-Conditioning Equipment1, 2" "Central System",65.9,32.1,17.6,5.2,9.3 "Without a Heat Pump",53.5,23.2,10.9,3.8,8.4 "With a Heat Pump",12.3,9,6.7,1.4,0.9 "WindowWall...

  7. "Table HC14.7 Air-Conditioning Usage Indicators by West Census...

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

    of Air-Conditioning Equipment1, 2" "Central System",65.9,10.5,3.9,6.5 "Without a Heat Pump",53.5,8.7,3.2,5.5 "With a Heat Pump",12.3,1.7,0.7,1 "WindowWall...

  8. "Table HC15.7 Air-Conditioning Usage Indicators by Four Most...

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

    of Air-Conditioning Equipment1, 2" "Central System",65.9,1.1,6.4,6.4,5.4 "Without a Heat Pump",53.5,1.1,3.5,5.7,4.9 "With a Heat Pump",12.3,"Q",2.9,0.7,0.5 "WindowWall...

  9. "Table HC3.7 Air-Conditioning Usage Indicators by Owner-Occupied Housing Unit, 2005"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4 Space2.9 Home7 Air-Conditioning Usage

  10. Floorspace

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghurajiConventionalMississippi"site. If youEIA-906 &Stocks 2009 2010 2011 2012 201345

  11. Floorspace

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghurajiConventionalMississippi"site. If youEIA-906 &Stocks 2009 2010 2011 2012 2013457.

  12. Trends in Commercial Buildings--Buildings and Floorspace

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

    Home > Trends in Commercial Buildings > Trends in Buildings Floorspace Data tables Commercial Buildings TrendDetail Commercial Floorspace TrendDetail Background: Adjustment to...

  13. TTProblem A Air Conditioning Machinery

    E-Print Network [OSTI]

    California at Berkeley, University of

    TTProblem A Air Conditioning Machinery Input file: ducts.in You are a technician for the Air Conditioning Machinery company (ACM). Unfortunately, when you arrive at a customer site to install some air conditioning ducts, you discover that you are running low on supplies. You have only six duct segments

  14. Lab Breakthrough: Desiccant Enhanced Evaporative Air Conditioning...

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

    Desiccant Enhanced Evaporative Air Conditioning Lab Breakthrough: Desiccant Enhanced Evaporative Air Conditioning May 29, 2012 - 5:22pm Addthis This breakthrough combines desiccant...

  15. Total..........................................................

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

    Q 0.4 3 or More Units... 5.4 0.3 Q Q Central Air-Conditioning Usage Air-Conditioned Floorspace (Square Feet)...

  16. Total..........................................................

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

    3 or More Units... 5.4 2.3 1.7 0.6 Central Air-Conditioning Usage Air-Conditioned Floorspace (Square Feet)...

  17. Total..........................................................

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

    0.3 3 or More Units... 5.4 0.7 0.5 Q Central Air-Conditioning Usage Air-Conditioned Floorspace (Square Feet)...

  18. A New Approach to Industrial Air Conditioning

    E-Print Network [OSTI]

    Gravenstreter, T.

    1982-01-01T23:59:59.000Z

    -dryer Systems Division, has marketed industrial drying machinery. These heat reactivated dryers can handle latent loads in industrial air conditioning systems. Through waste heat conservation, air conditioning costs can be reduced 25 to 50%, with applications...

  19. High Energy Efficiency Air Conditioning

    SciTech Connect (OSTI)

    Edward McCullough; Patrick Dhooge; Jonathan Nimitz

    2003-12-31T23:59:59.000Z

    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.

  20. Air-Conditioning, Heating, and Refrigeration Institute (AHRI...

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

    Air-Conditioning, Heating, and Refrigeration Institute (AHRI) Regulatory Burden RFI Air-Conditioning, Heating, and Refrigeration Institute (AHRI) Regulatory Burden RFI These...

  1. Alternative Refrigerants for Building Air Conditioning

    E-Print Network [OSTI]

    Bivens, D. B.

    1996-01-01T23:59:59.000Z

    The majority of building air conditioning has traditionally been achieved with vapor compression technology using CFC-I I or HCFC-22 as refrigerant fluids. CFC-11 is being successfully replaced by HCFC-123 (retrofit or new equipment) or by HFC- 134a...

  2. Seawater Air Conditioning for Downtown Engineering Project Manager

    E-Print Network [OSTI]

    Frandsen, Jannette B.

    Seawater Air Conditioning for Downtown Honolulu Scott Higa Engineering Project Manager Honolulu Seawater Air Conditioning, LLC Abstract As a tropical island state, Hawaii has a year-round demand for air conditioning. Conventional air conditioning systems are energy intensive and represent close to 50 percent

  3. Alternatives to Electric Air Conditioning Systems

    E-Print Network [OSTI]

    Lindsay, B. B.; Koplow, M. D.

    1988-01-01T23:59:59.000Z

    of an engine-driven chiller is very fundamental. The electric motor: which drives the refrigerant compressor, is replaced with an engine. (Each prime mover has a shaft that rotates and transmits power.) Gas engine-driven chillers can capitalize... on the advances in compressor technology that have made electric air conditioning so attractive. The relative prices of natural gas and electricity will determine the best choice. An electric chiller may have a COP of 5.5. The gas engine chiller, because its...

  4. Central Air Conditioning | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWPSuccessAlamos Laboratory NastasiPASTCentral Air Conditioning

  5. Total..........................................................

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

    Q 0.6 3 or More Units... 5.4 3.8 2.9 0.4 Q N 0.2 Central Air-Conditioning Usage Air-Conditioned Floorspace (Square Feet)...

  6. Total..........................................................

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

    1.3 Q 3 or More Units... 5.4 1.6 0.8 Q 0.3 0.3 Q Central Air-Conditioning Usage Air-Conditioned Floorspace (Square Feet)...

  7. Total..........................................................

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

    3 or More Units... 5.4 2.4 1.4 0.7 0.9 Central Air-Conditioning Usage Air-Conditioned Floorspace (Square Feet)...

  8. Total..........................................................

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

    3 or More Units... 5.4 2.1 0.9 0.2 1.0 Central Air-Conditioning Usage Air-Conditioned Floorspace (Square Feet)...

  9. Total..........................................................

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

    3 or More Units... 5.4 2.3 0.7 2.1 0.3 Central Air-Conditioning Usage Air-Conditioned Floorspace (Square Feet)...

  10. Alternative non-CFC mobile air conditioning

    SciTech Connect (OSTI)

    Mei, V.C.; Chen, F.C.; Kyle, D.M.

    1992-09-01T23:59:59.000Z

    Concern about the destruction of the global environment by chlorofluorocarbon (CFC) fluids has become an impetus in the search for alternative, non-CFC refrigerants and cooling methods for mobile air conditioning (MAC). While some alternative refrigerants have been identified, they are not considered a lasting solution because of their high global warming potential, which could result in their eventual phaseout. In view of this dilemma, environmentally acceptable alternative cooling methods have become important. This report, therefore, is aimed mainly at the study of alternative automotive cooling methodologies, although it briefly discusses the current status of alternative refrigerants. The alternative MACs can be divided into work-actuated and heat-actuated systems. Work-actuated systems include conventional MAC, reversed Brayton air cycle, rotary vane compressor air cycle, Stirling cycle, thermoelectric (TE) cooling, etc. Heat-actuated MACs include metal hydride cooling, adsorption cooling, ejector cooling, absorption cycle, etc. While we are better experienced with some work-actuated cycle systems, heat-actuated cycle systems have a high potential for energy savings with possible waste heat applications. In this study, each altemative cooling method is discussed for its advantages and its limits.

  11. air conditioning technology: Topics by E-print Network

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

    and Thermally Activated Technologies Improve Air Conditioning Researchers at the National Renewable Energy Laboratory (NREL) invented a breakthrough technology moisture from the...

  12. air conditioning technologies: Topics by E-print Network

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

    and Thermally Activated Technologies Improve Air Conditioning Researchers at the National Renewable Energy Laboratory (NREL) invented a breakthrough technology moisture from the...

  13. air conditioning equipments: Topics by E-print Network

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

    introducing or upgrading... analyses using BEMS data, ?) additional actual measurement data analyses and ?) HVAC system simulations using LCEM tool. The detailed air-conditioned...

  14. air conditioning equipment: Topics by E-print Network

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

    introducing or upgrading... analyses using BEMS data, ?) additional actual measurement data analyses and ?) HVAC system simulations using LCEM tool. The detailed air-conditioned...

  15. air conditioning load: Topics by E-print Network

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

    J.; Deying, L. 2006-01-01 2 Aggregated Modeling and Control of Air Conditioning Loads for Demand Response Computer Technologies and Information Sciences Websites Summary: 1...

  16. air conditioning loads: Topics by E-print Network

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

    Websites Summary: 1 Aggregated Modeling and Control of Air Conditioning Loads for Demand Response Wei Zhang, Member, IEEE Abstract--Demand response is playing an...

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

    SciTech Connect (OSTI)

    Kozubal, E.

    2013-02-01T23:59:59.000Z

    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.

  18. STATE OF CALIFORNIA ICE STORAGE AIR CONDITIONING (ISAC) UNITS

    E-Print Network [OSTI]

    cooling with the compressor). Yes No #12;STATE OF CALIFORNIA ICE STORAGE AIR CONDITIONING (ISAC) UNITS CEC/09) CALIFORNIA ENERGY COMMISSION INSTALLATION CERTIFICATE CF-6R-MECH-08 Ice Storage Air Conditioning (ISAC) Units being full of ice. Verify that the system is operates properly in the Idle mode (i.e., the compressor

  19. Air conditioning system with supplemental ice storing and cooling capacity

    DOE Patents [OSTI]

    Weng, Kuo-Lianq (Taichung, TW); Weng, Kuo-Liang (Taichung, TW)

    1998-01-01T23:59:59.000Z

    The present air conditioning system with ice storing and cooling capacity can generate and store ice in its pipe assembly or in an ice storage tank particularly equipped for the system, depending on the type of the air conditioning system. The system is characterized in particular in that ice can be produced and stored in the air conditioning system whereby the time of supplying cooled air can be effectively extended with the merit that the operation cycle of the on and off of the compressor can be prolonged, extending the operation lifespan of the compressor in one aspect. In another aspect, ice production and storage in great amount can be performed in an off-peak period of the electrical power consumption and the stored ice can be utilized in the peak period of the power consumption so as to provide supplemental cooling capacity for the compressor of the air conditioning system whereby the shift of peak and off-peak power consumption can be effected with ease. The present air conditioning system can lower the installation expense for an ice-storing air conditioning system and can also be applied to an old conventional air conditioning system.

  20. Innovative Systems for Solar Air Conditioning of Buildings

    E-Print Network [OSTI]

    Kessling, W.; Peltzer, M.

    2004-01-01T23:59:59.000Z

    for a high efficient utilization of solar thermal energy. To show the today's and near future potential innovative solar cooling and air conditioning systems are discussed which are well adapted to the utilization of solar energy. The system performance...

  1. Improving Glass Walls Thermal Resistance In Air-Conditioned Buildings 

    E-Print Network [OSTI]

    Galal, T.; Kulaib, A. M.; Alajmi, R.; Al-Ansary. A; Abuzaid, M.

    2010-01-01T23:59:59.000Z

    The solar radiation through an air conditioned building depends on what is called the building envelope. Building envelope consists of the surfaces that separate the inside from the building outdoors. Area, direction, and specifications of glass...

  2. Improving Glass Walls Thermal Resistance In Air-Conditioned Buildings

    E-Print Network [OSTI]

    Galal, T.; Kulaib, A. M.; Alajmi, R.; Al-Ansary. A; Abuzaid, M.

    2010-01-01T23:59:59.000Z

    The solar radiation through an air conditioned building depends on what is called the building envelope. Building envelope consists of the surfaces that separate the inside from the building outdoors. Area, direction, and specifications of glass...

  3. air conditioning energy: Topics by E-print Network

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

    R. Parameshwaran; R. Karunakaran; S. Iniyan; A. Samuel 7 Discussion of Air-Conditioning Energy-Savings in Hot-Summer and Cold-Winter Regions Texas A&M University - TxSpace...

  4. air conditioning desarrollo: Topics by E-print Network

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

    Abdalla, K. N. 2010-01-01 36 Economic Analysis and Comparison of Waste Water Resource Heat Pump Heating and Air-Conditioning System Texas A&M University - TxSpace Summary: Based...

  5. air conditioning installations: Topics by E-print Network

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

    K. 2010-01-01 98 Implementation of Smart Operation Strategies for Air-Conditioning and Lighting Systems for Ministries Complex in the State of Kuwait Texas A&M University -...

  6. Identifying Efficiency Degrading Faults in Split Air Conditioning Systems

    E-Print Network [OSTI]

    Terrill, T. J.; Brown, M. L.; Cheyne, R. W. Jr.; Cousins, A. J.; Daniels, B. P.; Erb, K. L.; Garcia, P. A.; Leutermann, M. J.; Nel, A. J.; Robert, C. L.; Widger, S. B.; Williams, A. G.; Rasmussen, B. P.

    2013-01-01T23:59:59.000Z

    Studies estimate that as much as 50% of packaged air conditioning systems operate in faulty conditions that degrade system efficiency. Common faults include: under- and over-charged systems (too much or too little refrigerant), faulty expansions...

  7. The investigation of exhaust powered, automotive air cycle air conditioning 

    E-Print Network [OSTI]

    Holley, James Andrew

    1978-01-01T23:59:59.000Z

    TEE INVESTIGATION OF EXHAUST POWERED, AUTOMOTIVE AIR CYCLE AIR CONDITIONING A Thesis James Andrew Holley Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE... August 1978 Major SubJect: Mechanical Engineering THE INVESTIGATION OF EXHAUST POWERED, AUTOMOTIVE AIR CYCLE AIR CONDITIONING A Thesis hy James Andrew Holley Approved as to style and content by: Chairman of Committee) (Head of Departm nt) Memb e...

  8. Gas Powered Air Conditioning Absorption vs. Engine-Drive

    E-Print Network [OSTI]

    Phillips, J. N.

    1996-01-01T23:59:59.000Z

    It used to be that the only alternative to costly electric air conditioning was the double-effect gas-fired absorption chiller/heaters. Beginning in the 1980's, they were the "star" equipment promoted by gas companies throughout the nation. Although...

  9. air conditioning absorption: Topics by E-print Network

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

    conditioning absorption First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Gas Powered Air Conditioning...

  10. "Table HC3.7 Air-Conditioning Usage Indicators by Owner-Occupied...

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

    Equipment1, 2" "Central System",65.9,51.7,43.9,2.5,0.7,1.6,3.1 "Without a Heat Pump",53.5,41.1,34.8,2.1,0.5,1.2,2.6 "With a Heat Pump",12.3,10.6,9.1,0.4,"Q",0.3,0.6...

  11. "Table HC4.7 Air-Conditioning Usage Indicators by Renter-Occupied...

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

    Equipment1, 2" "Central System",65.9,14.1,3.6,1.5,2.1,6.4,0.6 "Without a Heat Pump",53.5,12.4,3.1,1.3,1.8,5.7,0.6 "With a Heat Pump",12.3,1.7,0.6,"Q",0.3,0.6,"Q"...

  12. Table HC15.7 Air-Conditioning Usage Indicators by Four Most Populated States, 2005

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1Stocks Nov-14Total DeliveredPrincipal shale gas:14:9a.0 Home7

  13. Table HC6.7 Air-Conditioning Usage Indicators by Number of Household Members, 2005

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1Stocks Nov-14Total DeliveredPrincipal shale gas:14:9a.0 Home7.412457

  14. Table HC15.7 Air-Conditioning Usage Indicators by Four Most Populated States, 2005

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40 Buildingto17questionnairesU.S. Weekly Download:Stocks by3a.7

  15. Table HC6.7 Air-Conditioning Usage Indicators by Number of Household Members, 2005

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40 Buildingto17questionnairesU.S. Weekly Download:Stocks by3a.7 Million047

  16. The Earth-Coupled or Geothermal Heat Pump Air Conditioning System 

    E-Print Network [OSTI]

    Wagers, H. L.; Wagers, M. C.

    1985-01-01T23:59:59.000Z

    pump and the desuperheater as the latest developments in energy efficient air conditioning and water heating....

  17. Study of long term options for electric vehicle air conditioning

    SciTech Connect (OSTI)

    Dieckmann, J.; Mallory, D. [Little (Arthur D.), Inc., Cambridge, MA (United States)

    1991-07-01T23:59:59.000Z

    There are strong incentives in terms of national energy and environmental policy to encourage the commercialization of electrically powered vehicles in the U.S. Among these incentives are reduced petroleum consumption, improved electric generation capacity utilization, reduced IC engine emissions, and, depending on the primary fuel used for electric power generation, reduced emissions of carbon dioxide. A basic requirement for successfully commercializing any motor vehicle in the US is provision of adequate passenger comfort heating and air conditioning (cooling). Although air conditioning is generally sold as optional equipment, in excess of 80% of the automobiles and small trucks sold in the US have air conditioning systems. In current, pre-commercial electric vehicles, comfort heating is provided by a liquid fuel fired heater that heats water which is circulated through the standard heater core in the conventional interior air handling unit. Air conditioning is provided by electric motor driven compressors, installed in a system having, perhaps, an {open_quotes}upsized{close_quotes} condenser and a standard evaporator (front and rear evaporators in some instances) installed in the conventional interior air handler. Although this approach is adequate in the near term for initial commercialization efforts, a number of shortcomings of this arrangement, as well as longer range concerns need to be addressed. In this project, the long term alternatives for cooling and heating electric vehicles effectively, efficiently (with minimum range penalties), and without adverse environmental impacts have been examined. Identification of options that can provide both heating and cooling is important, in view of the disadvantages of carrying separate heating and cooling systems in the vehicle.

  18. Study of long term options for electric vehicle air conditioning

    SciTech Connect (OSTI)

    Dieckmann, J.; Mallory, D. (Little (Arthur D.), Inc., Cambridge, MA (United States))

    1991-07-01T23:59:59.000Z

    There are strong incentives in terms of national energy and environmental policy to encourage the commercialization of electrically powered vehicles in the U.S. Among these incentives are reduced petroleum consumption, improved electric generation capacity utilization, reduced IC engine emissions, and, depending on the primary fuel used for electric power generation, reduced emissions of carbon dioxide. A basic requirement for successfully commercializing any motor vehicle in the US is provision of adequate passenger comfort heating and air conditioning (cooling). Although air conditioning is generally sold as optional equipment, in excess of 80% of the automobiles and small trucks sold in the US have air conditioning systems. In current, pre-commercial electric vehicles, comfort heating is provided by a liquid fuel fired heater that heats water which is circulated through the standard heater core in the conventional interior air handling unit. Air conditioning is provided by electric motor driven compressors, installed in a system having, perhaps, an [open quotes]upsized[close quotes] condenser and a standard evaporator (front and rear evaporators in some instances) installed in the conventional interior air handler. Although this approach is adequate in the near term for initial commercialization efforts, a number of shortcomings of this arrangement, as well as longer range concerns need to be addressed. In this project, the long term alternatives for cooling and heating electric vehicles effectively, efficiently (with minimum range penalties), and without adverse environmental impacts have been examined. Identification of options that can provide both heating and cooling is important, in view of the disadvantages of carrying separate heating and cooling systems in the vehicle.

  19. The investigation of exhaust powered, automotive air cycle air conditioning

    E-Print Network [OSTI]

    Holley, James Andrew

    1978-01-01T23:59:59.000Z

    domestic automobiles and trucks because of its proven success. This system requires approximately 4 hp (2. 983 kW)[3] for operation snd employs a pressurized fluorinated hydrocarbon (R-12), hereafter fluorocarbon, as a refrigerant. Most of the research... extraction and avoid the use of a fluorocarbon refrigerant. The maJority of work involved with the new units has associated itself in the area of utilizing an absorption cycle or air cycle. The absorption air conditioning unit differs significantly from...

  20. Magnetic Refrigeration Technology for High Efficiency Air Conditioning

    SciTech Connect (OSTI)

    Boeder, A; Zimm, C

    2006-09-30T23:59:59.000Z

    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.

  1. Innovative Systems for Solar Air Conditioning of Buildings 

    E-Print Network [OSTI]

    Kessling, W.; Peltzer, M.

    2004-01-01T23:59:59.000Z

    kessling@transsolar.com Dipl.-Ing. Matthias PELTZER Technical Director L-DCS Technology GmbH Muenchener Str. 101, 85737 Ismaning b. Munich matthias.peltzer@l-dcs.com ABSTRACT Solar air conditioning is an attractive technology to achieve comfortable room... states (4). The room return air (5) is used in a latent heat recovery (6) (psychometric process see Figure 4). To illuminate the excellent system performance a typical cooling load profile for a standard office build- ing in the hot and humid climate...

  2. Liquid over-feeding air conditioning system and method

    DOE Patents [OSTI]

    Mei, Viung C. (Oak Ridge, TN); Chen, Fang C. (Knoxville, TN)

    1993-01-01T23:59:59.000Z

    A refrigeration air conditioning system utilizing a liquid over-feeding operation is described. A liquid refrigerant accumulator-heat exchanger is placed in the system to provide a heat exchange relationship between hot liquid refrigerant discharged from condenser and a relatively cool mixture of liquid and vaporous refrigerant discharged from the evaporator. This heat exchange relationship substantially sub-cools the hot liquid refrigerant which undergoes little or no evaporation across the expansion device and provides a liquid over-feeding operation through the evaporator for effectively using 100 percent of evaporator for cooling purposes and for providing the aforementioned mixture of liquid and vaporous refrigerant.

  3. Liquid over-feeding air conditioning system and method

    DOE Patents [OSTI]

    Mei, V.C.; Chen, F.C.

    1993-09-21T23:59:59.000Z

    A refrigeration air conditioning system utilizing a liquid over-feeding operation is described. A liquid refrigerant accumulator-heat exchanger is placed in the system to provide a heat exchange relationship between hot liquid refrigerant discharged from condenser and a relatively cool mixture of liquid and vaporous refrigerant discharged from the evaporator. This heat exchange relationship substantially sub-cools the hot liquid refrigerant which undergoes little or no evaporation across the expansion device and provides a liquid over-feeding operation through the evaporator for effectively using 100 percent of evaporator for cooling purposes and for providing the aforementioned mixture of liquid and vaporous refrigerant. 1 figure.

  4. The Effect of Pressure Difference Control on Hydraulic Stability in a Variable Flow Air Conditioning System

    E-Print Network [OSTI]

    Zhang, Z.; Fu, Y.; Chen, Y.

    2006-01-01T23:59:59.000Z

    This paper analyzes the effects of different pressure difference control methods on hydraulic stability in a variable flow air conditioning system when it is applied to different air conditioning water systems. According to control method and water...

  5. Proposal for an Adsorption Solar-Driven Air-Conditioning Unit for Public Offices 

    E-Print Network [OSTI]

    Elsamni, O. A.; Sahmarani, K.J.; Obied, F. K.

    2010-01-01T23:59:59.000Z

    A simple prototype air conditioning unit driven entirely by solar energy is proposed aiming at replacing the conventional vapor compression air conditioning systems which are reasonable for the global warming. The proposed model is supposed...

  6. Proposal for an Adsorption Solar-Driven Air-Conditioning Unit for Public Offices

    E-Print Network [OSTI]

    Elsamni, O. A.; Sahmarani, K.J.; Obied, F. K.

    2010-01-01T23:59:59.000Z

    A simple prototype air conditioning unit driven entirely by solar energy is proposed aiming at replacing the conventional vapor compression air conditioning systems which are reasonable for the global warming. The proposed model is supposed...

  7. Prediction of Air Conditioning Load Response for Providing Spinning Reserve - ORNL Report

    SciTech Connect (OSTI)

    Kueck, John D [ORNL; Kirby, Brendan J [ORNL; Ally, Moonis Raza [ORNL; Rice, C Keith [ORNL

    2009-02-01T23:59:59.000Z

    This report assesses the use of air conditioning load for providing spinning reserve and discusses the barriers and opportunities. Air conditioning load is well suited for this service because it often increases during heavy load periods and can be curtailed for short periods with little impact to the customer. The report also provides an appendix describing the ambient temperature effect on air conditioning load.

  8. Desiccant Enhanced Evaporative Air Conditioning: Parametric Analysis and Design; Preprint

    SciTech Connect (OSTI)

    Woods, J.; Kozubal, E.

    2012-10-01T23:59:59.000Z

    This paper presents a parametric analysis using a numerical model of a new concept in desiccant and evaporative air conditioning. The concept consists of two stages: a liquid desiccant dehumidifier and a dew-point evaporative cooler. Each stage consists of stacked air channel pairs separated by a plastic sheet. In the first stage, a liquid desiccant film removes moisture from the process (supply-side) air through a membrane. An evaporatively-cooled exhaust airstream on the other side of the plastic sheet cools the desiccant. The second-stage indirect evaporative cooler sensibly cools the dried process air. We analyze the tradeoff between device size and energy efficiency. This tradeoff depends strongly on process air channel thicknesses, the ratio of first-stage to second-stage area, and the second-stage exhaust air flow rate. A sensitivity analysis reiterates the importance of the process air boundary layers and suggests a need for increasing airside heat and mass transfer enhancements.

  9. Off-peak air conditioning; A major energy saver

    SciTech Connect (OSTI)

    MacCracken, C.D.

    1991-12-01T23:59:59.000Z

    Today, the mission given to manufacturers is changing to include saving energy (kWh). Until now, saving energy was ignored because the utilities were happy to fill their night valley to reach a higher load factor. There also was a general feeling that making ice was much less efficient than standard air conditioning, and that anyone saying otherwise was a dreamer. This article discusses the energy savings based on the more prevalent ice storage technology, the similar suction temperatures of the various types of ice storage, and how storage is applied. Included are baseload power generation, partial storage with chiller priority, using air cooled condensers when making ice at night, colder duct air, heat recovery, central rooftop systems, smart controls, electric/gas combinations, supply side transmission and distribution losses, and cooling of air entering gas turbine generators during peak conditions.

  10. Investigation of residential central air conditioning load shapes in NEMS

    SciTech Connect (OSTI)

    Hamachi LaCommare, Kristina; Marnay, Chris; Gumerman, Etan; Chan, Peter; Rosenquist, Greg; Osborn, Julie

    2002-05-01T23:59:59.000Z

    This memo explains what Berkeley Lab has learned about how the residential central air-conditioning (CAC) end use is represented in the National Energy Modeling System (NEMS). NEMS is an energy model maintained by the Energy Information Administration (EIA) that is routinely used in analysis of energy efficiency standards for residential appliances. As part of analyzing utility and environmental impacts related to the federal rulemaking for residential CAC, lower-than-expected peak utility results prompted Berkeley Lab to investigate the input load shapes that characterize the peaky CAC end use and the submodule that treats load demand response. Investigations enabled a through understanding of the methodology by which hourly load profiles are input to the model and how the model is structured to respond to peak demand. Notably, it was discovered that NEMS was using an October-peaking load shape to represent residential space cooling, which suppressed peak effects to levels lower than expected. An apparent scaling down of the annual load within the load-demand submodule was found, another significant suppressor of the peak impacts. EIA promptly responded to Berkeley Lab's discoveries by updating numerous load shapes for the AEO2002 version of NEMS; EIA is still studying the scaling issue. As a result of this work, it was concluded that Berkeley Lab's customary end-use decrement approach was the most defensible way for Berkeley Lab to perform the recent CAC utility impact analysis. This approach was applied in conjunction with the updated AEO2002 load shapes to perform last year's published rulemaking analysis. Berkeley Lab experimented with several alternative approaches, including modifying the CAC efficiency level, but determined that these did not sufficiently improve the robustness of the method or results to warrant their implementation. Work in this area will continue in preparation for upcoming rulemakings for the other peak coincident end uses, commercial air conditioning and distribution transformers.

  11. September 10, 2013 What is Seawater Air Conditioning (SWAC)?

    E-Print Network [OSTI]

    customer electrical consumption by up to 40% Aligns with Hawaii Clean Energy Initiatives Substantial water · Letters of Intent for 42% of Waikiki SWAC design load Customers · City, State, & Federal agency conditioning usage #12;Why SWAC in Waikiki? Electrical rates are near the highest in the U.S. Hawaii relies

  12. Control of Computer Room Air Conditioning using IT Equipment Sensors

    SciTech Connect (OSTI)

    Bell, Geoffrey C.; Storey, Bill; Patterson, Michael K.

    2009-09-30T23:59:59.000Z

    The goal of this demonstration was to show how sensors in IT equipment could be accessed and used to directly control computer room air conditioning. The data provided from the sensors is available on the IT network and the challenge for this project was to connect this information to the computer room air handler's control system. A control strategy was developed to enable separate control of the chilled water flow and the fans in the computer room air handlers. By using these existing sensors in the IT equipment, an additional control system is eliminated (or could be redundant) and optimal cooling can be provided saving significant energy. Using onboard server temperature sensors will yield significant energy reductions in data centers. Intel hosted the demonstration in its Santa Clara, CA data center. Intel collaborated with IBM, HP, Emerson, Wunderlich-Malec Engineers, FieldServer Technologies, and LBNL to install the necessary components and develop the new control scheme. LBNL also validated the results of the demonstration.

  13. air-conditioned office buildings: Topics by E-print Network

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

    2. Adsorption versus absorptionAssessment of adsorber bed designs in waste-heat driven adsorption cooling systems for vehicle air conditioning and refrigeration Amir Sharafian,...

  14. air-conditioning units part: Topics by E-print Network

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

    on the green building of the Shanghai Institute of Architectural Science, a solar-powered adsorption air-conditioning system was designed. The operational performance under a...

  15. automotive air-conditioning system: Topics by E-print Network

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

    on the green building of the Shanghai Institute of Architectural Science, a solar-powered adsorption air-conditioning system was designed. The operational performance under a...

  16. E-Print Network 3.0 - air conditioning automatic Sample Search...

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

    exhaust air... conditions. Because of these external demands, the American Society of Heating, Refrigerating and Air... monitors include a remote alarm signal andor automatic...

  17. air-conditioning equipment lorentz: Topics by E-print Network

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

    Topic Index 1 Smart School Symposium Heating Ventilation and Air Conditioning Session Energy Storage, Conversion and Utilization Websites Summary: Smart School Symposium Heating...

  18. Intelligent Residential Air-Conditioning System with Smart-Grid Functionality

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    1 Intelligent Residential Air-Conditioning System with Smart-Grid Functionality Auswin George residential air-conditioning (A/C) system controller that has smart grid functionality. The qualifier, conditional on anticipated retail energy prices. The term "smart- grid functionality" means that retail energy

  19. Experimental Investigation on the Operation Performance of a Liquid Desiccant Air-conditioning System

    E-Print Network [OSTI]

    Liu, J.; Wang, J.; Wu, Z.; Gu, W.; Zhang, G.

    2006-01-01T23:59:59.000Z

    A large share of energy consumption is taken by an air-conditioning system. It worsens the electricity load of the power network. Therefore, more and more scholars are paying attention to research on new types of air-conditioning systems...

  20. Modelica Library for Building Heating, Ventilation and Air-Conditioning Systems

    E-Print Network [OSTI]

    Modelica Library for Building Heating, Ventilation and Air-Conditioning Systems Michael Wetter available Modelica library for building heating, ventilation and air conditioning systems. The library development is focused on the develop- ment of models for building heating, ventilation and air

  1. A web based CBR system for heating ventilation and air conditioning systems sales support

    E-Print Network [OSTI]

    Watson, Ian

    A web based CBR system for heating ventilation and air conditioning systems sales support D describes the implementation of a case-based reasoning (CBR) system to support heating ventilation and air. Introduction Western Air is a distributor of heating ventilation and air conditioning (HVAC) systems

  2. Optimization of the Fin Heat Pipe for Ventilating and Air Conditioning with a Genetic Algorithm

    E-Print Network [OSTI]

    Qian, J.; Sun, D.; Li, G.

    2006-01-01T23:59:59.000Z

    This paper illustrates that use of a heat pipe as a heat-reclaiming device can significantly influence the air-conditioning system. It analyzes the heat transfer model of the uniform annular fin heat pipe under the condition of air conditioning...

  3. Investigating the Performance of Solar Air Conditioning Motivation/Background Findings

    E-Print Network [OSTI]

    -thermal collectors We investigated 3 types of solar cooling technologies: · Air conditioning consumes 10% of all collector size is a critical limiting factor of solar air conditioners · High driving temperatureInvestigating the Performance of Solar Air Conditioning Motivation/Background Findings Two Building

  4. Optimization of the Fin Heat Pipe for Ventilating and Air Conditioning with a Genetic Algorithm 

    E-Print Network [OSTI]

    Qian, J.; Sun, D.; Li, G.

    2006-01-01T23:59:59.000Z

    This paper illustrates that use of a heat pipe as a heat-reclaiming device can significantly influence the air-conditioning system. It analyzes the heat transfer model of the uniform annular fin heat pipe under the condition of air conditioning...

  5. Energy Comparison Between Conventional and Chilled Water Thermal Storage Air Conditioning Systems

    E-Print Network [OSTI]

    Sebzali, M.; Hussain, H. J.; Ameer, B.

    2010-01-01T23:59:59.000Z

    , encouraged by government subsidies and driven by the rapid and continual expansion in building construction, urban development, and the heavy reliance on Air Conditioning (AC) systems for the cooling of buildings. The Chilled Water Thermal Storage (CWTS...

  6. Proposal for a Vehicle Level Test Procedure to Measure Air Conditioning Fuel Use: Preprint

    SciTech Connect (OSTI)

    Rugh, J.

    2010-02-01T23:59:59.000Z

    A procedure is described to measure approximate real-world air conditioning fuel use and assess the impact of thermal load reduction strategies in plug-in hybrid electric vehicles.

  7. Energy-Saving Design for Pressure Difference Control in Variable Flow Air Conditioning Systems

    E-Print Network [OSTI]

    Chen, Y.; Zhang, Z.

    2006-01-01T23:59:59.000Z

    This paper analyzes energy-saving design for pressure-difference control in a variable flow air conditioning system, including the application of a pressure-difference control valve and the installation position of a pressure-difference transducer...

  8. Impact of the Variable Refrigerant Volume Air Conditioning System on Building Energy Efficiency 

    E-Print Network [OSTI]

    Zhu, H.

    2006-01-01T23:59:59.000Z

    The application of the variable refrigerant volume multi-zone air conditioning systems has met with mixed results since the publication of the Design Standard for Energy Efficiency of Public Buildings. This paper analyzes the characteristics...

  9. Modelica Library for Building Heating, Ventilation and Air-Conditioning Systems

    E-Print Network [OSTI]

    Wetter, Michael

    2010-01-01T23:59:59.000Z

    Austria, September 2006. Modelica As- sociation and Arsenalsystems. The ?exibility of Modelica has been T room in [° C]lss. AirConditioning - a Modelica li- o brary for dynamic

  10. Research on Fuzzy Regulation Strategies in the Constant Air Volume Air Conditioning System

    E-Print Network [OSTI]

    Bai, T.; Zhang, J.; Ning, N.; Tong, K.; Wu, Y.; Wang, H.

    2006-01-01T23:59:59.000Z

    The energy consumption of the constant air volume (CAV) system largely depends on the regulation strategies. Although some air conditioning systems are equipped with automatic regulation devices, others lack effective regulation strategies. To avoid...

  11. Research on Fuzzy Regulation Strategies in the Constant Air Volume Air Conditioning System 

    E-Print Network [OSTI]

    Bai, T.; Zhang, J.; Ning, N.; Tong, K.; Wu, Y.; Wang, H.

    2006-01-01T23:59:59.000Z

    The energy consumption of the constant air volume (CAV) system largely depends on the regulation strategies. Although some air conditioning systems are equipped with automatic regulation devices, others lack effective ...

  12. CFD Simulation and Analysis of the Combined Evaporative Cooling and Radiant Ceiling Air-conditioning System

    E-Print Network [OSTI]

    Xiang, H.; Yinming, L.; Junmei, W.

    2006-01-01T23:59:59.000Z

    consumption analysis of the building is carried out using the energy consumption code. Velocity and temperature distribution in the air-conditioned zone is computed using CFD. According to the results, the energy consumption and indoor human thermal comfort...

  13. Air-Conditioning Effect Estimation for Mid-Term Forecasts of Tunisian Electricity Consumption

    E-Print Network [OSTI]

    Boyer, Edmond

    Air-Conditioning Effect Estimation for Mid-Term Forecasts of Tunisian Electricity Consumption Tunisian electricity consumption (the residential sector represents 68% of this class of consumers). Nevertheless, with the Tunisian electricity consumption context, models elaborating which take account weather

  14. The Earth-Coupled or Geothermal Heat Pump Air Conditioning System

    E-Print Network [OSTI]

    Wagers, H. L.; Wagers, M. C.

    1985-01-01T23:59:59.000Z

    " and next at proper home insulation, window coverings, etc. The other electrical appliances in the home use relatively minor amounts of electricity compared to the air conditioning and hot water heating system. This paper will describe the geothermal heat...

  15. air-conditioning applications final: Topics by E-print Network

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

    surroundings by the reflection, is used... Liu, P.; Li, D. 2006-01-01 23 Proposal for an Adsorption Solar-Driven Air-Conditioning Unit for Public Offices Texas A&M University -...

  16. automative air-conditioning systems: Topics by E-print Network

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

    and try to identify the important trends. Thorsten Ohl 2002-11-05 63 Proposal for an Adsorption Solar-Driven Air-Conditioning Unit for Public Offices Texas A&M University -...

  17. Numerical Analysis of Heat and Moisture Transfer in Underground Air-conditioning Systems

    E-Print Network [OSTI]

    Wang, Q.; Miao, X.; Cheng, B.; Fan, L.

    2006-01-01T23:59:59.000Z

    In view of the influence of humidity of room air on room heat load, indoor environment and building energy consumption in underground intermittent air-conditioning systems, numerical simulation was used to dynamically analyze the coupling condition...

  18. Analysis of the Diagnostic Methods of the Performance Failure of Heating and Air Conditioning Systems

    E-Print Network [OSTI]

    Li, L.; Zhang, Z.; Sun, Y.; Li, D.; Xie, H.

    2006-01-01T23:59:59.000Z

    The paper introduces some diagnostic methods for the performance failure of heating and air conditioning, analyzes the principle by an example, gives the application characteristics of different methods and supplies the guide for the application...

  19. The Full Water Disposal Ways and Study on Central Air-conditioning Circulation Cooling Water System

    E-Print Network [OSTI]

    Zhang, J.

    2006-01-01T23:59:59.000Z

    This paper has been made the further study about the water quality issue of the central air-conditioning circulation cooling water. Based on the comparison of the existing common adopted disposal ways, put forward the new ways of combination...

  20. air-conditioning direct-fired double-effect: Topics by E-print...

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

    on the basis... Liu, J.; Mai, Y.; Liu, X. 2006-01-01 30 Discussion of Air-Conditioning Energy-Savings in Hot-Summer and Cold-Winter Regions Texas A&M University - TxSpace...

  1. Fuel Savings and Emission Reductions from Next-Generation Mobile Air Conditioning Technology in India: Preprint

    SciTech Connect (OSTI)

    Chaney, L.; Thundiyil, K.; Chidambaram, S.; Abbi, Y. P.; Anderson, S.

    2007-05-01T23:59:59.000Z

    This paper quantifies the mobile air-conditioning fuel consumption of the typical Indian vehicle, exploring potential fuel savings and emissions reductions these systems for the next generation of vehicles.

  2. Flywheel Cooling: A Cooling Solution for Non Air-Conditioned Buildings

    E-Print Network [OSTI]

    Abernethy, D.

    of evaroration, ventilation and air circulation. These systems are rroviding low-cost cooling for distribution centers, warehouses, and other non air-conditioned industrial assembly rlants with little or no internal 10iids. . The eva[lorative roof cooling...

  3. Issues and Factors of Train Air-conditioning System Design and Operation

    E-Print Network [OSTI]

    Liu, P.; Li, D.

    2006-01-01T23:59:59.000Z

    satisfy both the coldness supply in summer and the heat supply in winter basically. In fact, this system supplies a more comfortable environment for the passengers. However, compared to the advanced countries, our train air-conditionings still have...

  4. Operation of Energy-Efficient Air-Conditioned Buildings: An Overview

    E-Print Network [OSTI]

    Khalil, E. E.

    2010-01-01T23:59:59.000Z

    To design an optimum HVAC airside system that provides comfort and air quality in the air-conditioned spaces with efficient energy consumption is a great challenge. This paper evaluates recent progresses of HVAC airside design for the air...

  5. Operation of Energy-Efficient Air-Conditioned Buildings: An Overview 

    E-Print Network [OSTI]

    Khalil, E. E.

    2010-01-01T23:59:59.000Z

    To design an optimum HVAC airside system that provides comfort and air quality in the air-conditioned spaces with efficient energy consumption is a great challenge. This paper evaluates recent progresses of HVAC airside ...

  6. Feasibility of Municipal Water Mains as Heat Sink for Residential Air-Conditioning

    E-Print Network [OSTI]

    Vliet, G. C.

    1994-01-01T23:59:59.000Z

    It has been proposed that municipal water mains be used as the heat sink or the heat source for air-conditioning or heating, respectively. This paper addresses the extent of thermal contamination associated with the use of municipal water...

  7. air-conditioning systems based: Topics by E-print Network

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

    8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 A web based CBR system for heating ventilation and air conditioning systems sales support...

  8. Energy Consumption Measuring and Diagnostic Analysis of Air-conditioning Water System in a Hotel Building in Harbin

    E-Print Network [OSTI]

    Zhao, T.; Zhang, J.; Li, Y.

    2006-01-01T23:59:59.000Z

    This paper introduces an air-conditioning water system in a hotel building in Harbin, finishes its air-conditioning energy consumption measurement in summer conditions, and presents an estimation index of performance of chiller, pump and motor...

  9. Discussion of Air-Conditioning Energy-Savings in Hot-Summer and Cold-Winter Regions

    E-Print Network [OSTI]

    Zheng, W.; Gong, F.; Lou, X.; Cheng, J.

    2006-01-01T23:59:59.000Z

    Introducing several kinds of air-conditioning systems energy conservation measures, and according to the climate of the hot-summer and cold-winter region in China, this paper puts forward an overall conception for air-conditioning energy...

  10. The Technical and Economical Analysis of the Air-conditioning System Usage in Residential Buildings in Beijing

    E-Print Network [OSTI]

    Sheng, G.; Xie, G.

    2006-01-01T23:59:59.000Z

    -conditioning has many merits such as clean, safety, high COP, longevity of service, low price and maintenance easily. But it also has weak aspects, for example, its power consumption is higher, which has became the main hidden trouble of electric network..., stability of running, service life, maintenance, price, and so on. There are 3 kinds of common water chilling units, which are the centrifugal compressor chiller? the ICEBO2006, Shenzhen, China Building Commissioning for Energy Efficiency...

  11. "Table HC10.7 Air-Conditioning Usage Indicators by U.S. Census Region, 2005"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4 Space Heating8TotalTotal436 Air7

  12. "Table HC11.7 Air-Conditioning Usage Indicators by Northeast Census Region, 2005"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4 Space Heating8TotalTotal43627

  13. "Table HC12.7 Air-Conditioning Usage Indicators by Midwest Census Region, 2005"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4 Space Heating8TotalTotal4362780324567

  14. "Table HC13.7 Air-Conditioning Usage Indicators by South Census Region, 2005"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4 Space2.9 Home Appliances7

  15. "Table HC14.7 Air-Conditioning Usage Indicators by West Census Region, 2005"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4 Space2.9 Home Appliances7835 Space67

  16. "Table HC15.7 Air-Conditioning Usage Indicators by Four Most Populated States, 2005"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4 Space2.9 Home Appliances783525

  17. "Table HC4.7 Air-Conditioning Usage Indicators by Renter-Occupied Housing Unit, 2005"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4 Space2.9 Home72 Home

  18. Impact of the Variable Refrigerant Volume Air Conditioning System on Building Energy Efficiency

    E-Print Network [OSTI]

    Zhu, H.

    2006-01-01T23:59:59.000Z

    ICEBO2006, Shenzhen, China HVAC Technologies for Energy Efficiency Vol.IV-1-3 Impact of the Variable Refrigerant Volume Air Conditioning System on Building Energy Efficiency Huawei Zhu Zhejiang Urban and Rural Planning Design Institute... conditioning system has led to extensive criticism. 2. THE CHARACTERISTICS OF THE VARIABLE REFRIGERANT VOLUME AIR CONDITIONING SYSTEM AND ITS PRESENT APPLICATION ICEBO2006, Shenzhen, China HVAC Technologies for Energy Efficiency Vol.IV-1-3 2...

  19. Adjudication Concerning the Contract for the Maintenance of Pipework and Heating, Ventilating and Air-Conditioning Installations

    E-Print Network [OSTI]

    1971-01-01T23:59:59.000Z

    Adjudication Concerning the Contract for the Maintenance of Pipework and Heating, Ventilating and Air-Conditioning Installations

  20. Adjudication of a Contract for the Maintenance of Pipework and Heating, Ventilating and Air-Conditioning Installations

    E-Print Network [OSTI]

    1977-01-01T23:59:59.000Z

    Adjudication of a Contract for the Maintenance of Pipework and Heating, Ventilating and Air-Conditioning Installations

  1. Proposed Adjudication of the Contract for the Heating, Ventilating and Air Conditioning Installations for the ISR Buildings

    E-Print Network [OSTI]

    1968-01-01T23:59:59.000Z

    Proposed Adjudication of the Contract for the Heating, Ventilating and Air Conditioning Installations for the ISR Buildings

  2. "Table HC1.3 Heated Floorspace Usage Indicators, 2005" " Million U.S. Housing Units"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4 Space Heating8TotalTotal

  3. "Table HC1.4 Cooled Floorspace Usage Indicators, 2005" " Million U.S. Housing Units"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4 Space Heating8TotalTotal4 Cooled

  4. Usage by Job Size

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

    Usage by Job Size Table Usage by Job Size Table page loading animation Usage Query Interface System All Hopper Edison Carver Planck Matgen Franklin Hopper 1 Magellan Dirac Bassi...

  5. Future Air Conditioning Energy Consumption in Developing Countries and what can be done about it: The Potential of Efficiency in the Residential Sector

    E-Print Network [OSTI]

    McNeil, Michael A.; Letschert, Virginie E.

    2008-01-01T23:59:59.000Z

    G. Henderson (2005) Home air conditioning in Europe – howhigher growth in Indian air conditioner saturation duringand A.A. Pavlova ( 2003). Air conditioning market saturation

  6. Smart Operations of Air-Conditioning and Lighting Systems in Government Buildings for Peak Power Reduction

    E-Print Network [OSTI]

    Al-Hadban, Y.; Maheshwari, G. P.; Al-Nakib, D.; Al-Mulla, A.; Alasseri, R.

    During the summer 2007 smart operation strategies for air-conditioning (A/C) and lighting systems were developed and tested in a number of governmental buildings in Kuwait as one of the solutions to reduce the national peak demand for electrical...

  7. Theoretical Study of a Novel Control Method of VAV Air-conditioning System Based on MATLAB

    E-Print Network [OSTI]

    Shi, Z.; Hu, S.; Wang, G.; Li, A.

    2006-01-01T23:59:59.000Z

    The main purpose of this study is to put forward a novel nonlinear feedback control strategy on controlling indoor air temperature by variable air volume. A dynamic model of a typical room for a VAV air-conditioning system is established...

  8. Evaluation of a Local Air Conditioning Duty Cycling Device as a Load Management Tool

    E-Print Network [OSTI]

    Schneider, K.; Thedford, M.

    1986-01-01T23:59:59.000Z

    During the summer of 1984, a test was performed to evaluate a local air conditioning duty cycling device as a tool to reduce TUEC's system summer peak demand. In addition to the local duty cycling device, a direct load control device using a power...

  9. Aggregated Modeling and Control of Air Conditioning Loads for Demand Response

    E-Print Network [OSTI]

    Zhang, Wei

    1 Aggregated Modeling and Control of Air Conditioning Loads for Demand Response Wei Zhang, Member, IEEE Abstract--Demand response is playing an increasingly impor- tant role in the efficient loads is especially important to evaluate the effec- tiveness of various demand response strategies

  10. Test and Reconstruction of Air Conditioning System in a Hotel Lobby

    E-Print Network [OSTI]

    Wang, G.; Hu, Y.; Hu, S.; Chen, Q.

    2006-01-01T23:59:59.000Z

    Two air conditioning systems are equipped in a hotel lobby. It is found from the field test that the actual air rate is 40% and 16% of the nominal value, respectively, of the two systems, which is far lower than the design requirement. The air rate...

  11. Economic Analysis and Comparison of Waste Water Resource Heat Pump Heating and Air-Conditioning System 

    E-Print Network [OSTI]

    Zhang, C.; Wang, S.; Chen, H.; Shi, Y.

    2006-01-01T23:59:59.000Z

    Based on the heating and air-conditioning system of a high-rise residential building in Northern city, this paper provides a discussion on the choice and matching of different types of Waste Water Resource Heat Pump (WWRHP) heating and air...

  12. Problem Type Problem Type Description Air Conditioning Air conditioner not working, leaking, etc

    E-Print Network [OSTI]

    Tennessee, University of

    Problem Type Problem Type Description Air Conditioning Air conditioner not working, leaking, etc, Microfridges Doors and Hardware Door repair/replace Lock, latch or hinge repair, key stuck; Lost or stolen key, repair or replace Shades/Blinds Window treatment - repair or replace Washer/Dryer Washer/Dryer repair

  13. Economic Analysis and Comparison of Waste Water Resource Heat Pump Heating and Air-Conditioning System

    E-Print Network [OSTI]

    Zhang, C.; Wang, S.; Chen, H.; Shi, Y.

    2006-01-01T23:59:59.000Z

    Based on the heating and air-conditioning system of a high-rise residential building in Northern city, this paper provides a discussion on the choice and matching of different types of Waste Water Resource Heat Pump (WWRHP) heating and air...

  14. RHEOLOGICAL STUDY OF TWO-PHASE SECONDARY FLUIDS FOR REFRIGERATION AND AIR CONDITIONING.

    E-Print Network [OSTI]

    Boyer, Edmond

    RHEOLOGICAL STUDY OF TWO-PHASE SECONDARY FLUIDS FOR REFRIGERATION AND AIR CONDITIONING. Mylène have promising application in refrigeration thanks to their large cooling capacity and their storage Because it is nowadays necessary to phase out CFCs or HCFCs fluids from the refrigeration industry

  15. Research on Thermal Properties in a Phase Change Wallboard Room Based on Air Conditioning Cold Storage

    E-Print Network [OSTI]

    Feng, G.; Li, W.; Chen, X.

    2006-01-01T23:59:59.000Z

    After comparing the thermal performance parameters of an ordinary wall room to a phase change wall (PCW) room, we learn that phase change wallboard affects the fluctuation of temperature in air-conditioning room in the summer. We built a PCW room...

  16. Start-Up of Air Conditioning Systems After Periods of Shutdown (Humidity Considerations)

    E-Print Network [OSTI]

    Todd, T. R.

    1986-01-01T23:59:59.000Z

    after the system is restarted. Moe t simply, condensation takes place when moist air flows past surfaces which have been cooled below its dewpoint. In air conditioning this occurs when the cold supply air being deli- vered into the space induces...

  17. Proceedings of the 1993 non-fluorocarbon insulation, refrigeration and air conditioning technology workshop

    SciTech Connect (OSTI)

    Not Available

    1994-09-01T23:59:59.000Z

    Sessions included: HFC blown polyurethanes, carbon dioxide blown foam and extruded polystyrenes, plastic foam insulations, evacuated panel insulation, refrigeration and air conditioning, absorption and adsorption and stirling cycle refrigeration, innovative cooling technologies, and natural refrigerants. Selected papers have been indexed separately for inclusion in the Energy Science and Technology Database.

  18. Model Based Sensor System for Temperature Measurement in R744 Air Conditioning Systems

    E-Print Network [OSTI]

    Reitz, Sven; Schneider, Peter

    2008-01-01T23:59:59.000Z

    The goal is the development of a novel principle for the temperature acquisition of refrigerants in CO2 air conditioning systems. The new approach is based on measuring the temperature inside a pressure sensor, which is also needed in the system. On the basis of simulative investigations of different mounting conditions functional relations between measured and medium temperature will be derived.

  19. Modeling and Control of Aggregated Air Conditioning Loads Under Realistic Conditions

    E-Print Network [OSTI]

    Zhang, Wei

    heaters are examples of TCLs. They use local hysteresis control to maintain either air or water units and water heaters is developed in [7] using detailed physical models. In all the aforementioned for a large fraction of electric demand. HVAC (Heating, Ventilation and air conditioning) systems and water

  20. Heating, Ventilating, and Air-Conditioning: Recent Advances in Diagnostics and Controls to Improve Air-Handling System Performance

    E-Print Network [OSTI]

    Wray, Craig P.

    2008-01-01T23:59:59.000Z

    Heating, Ventilating, and Air-Conditioning: Recent Advancesthe energy efficiency of many heating, ventilating, and air-system, which delivers heating, cooling, and ventilation air

  1. Comment submitted by the Air Conditioning, Heating and Refrigeration Institute (AHRI) regarding the Energy Star Verification Testing Program

    Broader source: Energy.gov [DOE]

    This document is a comment submitted by the Air Conditioning, Heating and Refrigeration Institute (AHRI) regarding the Energy Star Verification Testing Program

  2. Application of the VRV Air-Conditioning System Heat Recovery Series in Interior Zone and Analysis of its Energy Saving

    E-Print Network [OSTI]

    Zhang, Q.; Li, D.; Zhang, J.

    2006-01-01T23:59:59.000Z

    To reduce the energy consumption of air conditioning systems, we can use the VRV air conditioning system to supply cold loads in the winter for rooms in the construction inner zone where cold loads need to be supplied. The VRV air...

  3. Low-Flow Liquid Desiccant Air Conditioning: General Guidance and Site Considerations

    SciTech Connect (OSTI)

    Kozubal, E.; Herrmann, L.; Deru, M.; Clark, J.

    2014-09-01T23:59:59.000Z

    Dehumidification or latent cooling in buildings is an area of growing interest that has been identified as needing more research and improved technologies for higher performance. Heating, ventilating, and air-conditioning (HVAC) systems typically expend excessive energy by using overcool-and-reheat strategies to dehumidify buildings. These systems first overcool ventilation air to remove moisture and then reheat the air to meet comfort requirements. Another common strategy incorporates solid desiccant rotors that remove moisture from the air more efficiently; however, these systems increase fan energy consumption because of the high airside pressure drop of solid desiccant rotors and can add heat of absorption to the ventilation air. Alternatively, liquid desiccant air-conditioning (LDAC) technology provides an innovative dehumidification solution that: (1) eliminates the need for overcooling and reheating from traditional cooling systems; and (2) avoids the increased fan energy and air heating from solid desiccant rotor systems.

  4. Analysis of Energy Saving in a Clean Room Air-conditioning System

    E-Print Network [OSTI]

    Liu, S.; Liu, J.; Pei, J.; Wang, M.

    2006-01-01T23:59:59.000Z

    temperature field, small supply air temperature difference, large airflow, but no reheater. As the design airflow rate of air conditioning system for cleaning mainly considered to meet the need of the cleanliness class, its air exchange rate was much... above, we had chosen a representative air-handling unit for the testing renovation of 2nd return air system. Cleaning area for this AHU was a capsule clean room with a hundred thousand cleanliness classes. Indoor controlled dry-bulb temperature...

  5. Retrofitting Inefficient Rooftop Air-Conditioning Units Reduces U.S. Navy Energy Use (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-04-01T23:59:59.000Z

    As part of the U.S. Navy's overall energy strategy, the National Renewable Energy Laboratory (NREL) partnered with the Naval Facilities Engineering Command (NAVFAC) to demonstrate market-ready energy efficiency measures, renewable energy generation, and energy systems integration. One such technology - retrofitting rooftop air-conditioning units with an advanced rooftop control system - was identified as a promising source for reducing energy use and costs, and can contribute to increasing energy security.

  6. Comparison of global warming impacts of automobile air-conditioning concepts

    SciTech Connect (OSTI)

    NONE

    1995-12-31T23:59:59.000Z

    The global warming impacts of conventional vapor compression automobile air conditioning using HFC-134a are compared with the potential impacts of four alternative concepts. Comparisons are made on the basis of total equivalent warming impact (TEWI) which accounts for the effects of refrigerant emissions, energy use to provide comfort cooling, and fuel consumed to transport the weight of the air conditioning system. Under the most favorable assumptions on efficiency and weight, transcritical compression using CO{sub 2} as the refrigerant and adsorption cooling with water and zeolite beds could reduce TEWI by up to 18%rlative to HFC-134a compression air conditioning. Other assumptions on weight and efficiency lead to significant increases in TEWI relative to HFC-134a, and it is impossible to determine which set of assumptios is valid from existing data, Neither Stirling cycle or thermoelectric cooling will reduce TEWI relative to EFC-134a. Brief comments are also made concerning technical barriers that must be overcome for succesful development of the new technologies.

  7. Commentary: Air-conditioning as a risk for increased use of healthservices

    SciTech Connect (OSTI)

    Mendell, Mark J.

    2004-06-01T23:59:59.000Z

    In this issue of the journal, Preziosi et al. [2004] report the first study to assess differences in the utilization of health care related to the presence of air-conditioning in office workplaces. Although the study was simple and cross-sectional, the data variables from questionnaires, and the findings subject to a variety of questions, the findings are striking enough to deserve clarification. The study used a large random national sample of French women assembled for another purpose (to study antioxidant nutrients and prevention of cancer and cardiovascular disease). Participants reported health services and health events in monthly questionnaires over 1 year, and in one questionnaire in the middle of that period also reported whether air-conditioning was in use at their workplace. Fifteen percent of participants reported air-conditioning at work. Analyses adjusting for age and smoking status of participants found increases in most outcomes assessed: use of specific kinds of physicians, sickness absence, and hospital stays. While the increases in odds ratios (OR) and 95% confidence intervals (CI) were statistically significant for only otorhinolaryngology [OR (95% CI) = 2.33 (1.35-4.04)] and sickness absence [1.70 (1.13-2.58)], other increases were notable--dermatology [1.6 (0.98-2.65)]; hospital stay [1.51 (0.92-2.45)], and pneumonology [2.10 (0.65-6.82)]. The least elevated outcomes were for general practice medicine [0.99 (0.65-1.48)] and global medical visits [1.18 (0.67-2.07)]. [Preziosi et al., 2004 ,(Table 2)] Odds ratios for relatively common health outcomes often lie farther from the null than the risk ratios most useful for quantifying the increase in risk. Risk ratios, or prevalence ratios (PRs, the equivalent measure of effect for cross-sectional data), have seldom been used because of the convenience and availability of logistic regression models that estimate odds ratios. With baseline prevalences ranging up to 85.7% in the data from Preziosi et al. [2004], PRs allow a more appropriate estimate of the increase in each outcome associated with the risk factor of air-conditioning. The increase in prevalence was roughly estimated as [100* (crude PR * adjusted OR/crude OR)-100] %. Based on the data in Table 2 of Preziosi et al. [ 2004], estimates for the increased prevalence associated with air-conditioned offices include increases of 120% in otorhinolaryngology visits, and 40% in sickness absence. If these associated increases represented valid causal relationships, it would indicate enormous costs for employers and for society associated with air-conditioning systems, from increased health care and for reduced workplace productivity from sickness absence, in addition to a large burden of disease on workers.

  8. An Analysis of Price Determination and Markups in the Air-Conditioning and Heating Equipment Industry

    SciTech Connect (OSTI)

    Dale, Larry; Millstein, Dev; Coughlin, Katie; Van Buskirk, Robert; Rosenquist, Gregory; Lekov, Alex; Bhuyan, Sanjib

    2004-01-30T23:59:59.000Z

    In this report we calculate the change in final consumer prices due to minimum efficiency standards, focusing on a standard economic model of the air-conditioning and heating equipment (ACHE) wholesale industry. The model examines the relationship between the marginal cost to distribute and sell equipment and the final consumer price in this industry. The model predicts that the impact of a standard on the final consumer price is conditioned by its impact on marginal distribution costs. For example, if a standard raises the marginal cost to distribute and sell equipment a small amount, the model predicts that the standard will raise the final consumer price a small amount as well. Statistical analysis suggest that standards do not increase the amount of labor needed to distribute equipment the same employees needed to sell lower efficiency equipment can sell high efficiency equipment. Labor is a large component of the total marginal cost to distribute and sell air-conditioning and heating equipment. We infer from this that standards have a relatively small impact on ACHE marginal distribution and sale costs. Thus, our model predicts that a standard will have a relatively small impact on final ACHE consumer prices. Our statistical analysis of U.S. Census Bureau wholesale revenue tends to confirm this model prediction. Generalizing, we find that the ratio of manufacturer price to final consumer price prior to a standard tends to exceed the ratio of the change in manufacturer price to the change in final consumer price resulting from a standard. The appendix expands our analysis through a typical distribution chain for commercial and residential air-conditioning and heating equipment.

  9. Solutions for Summer Electric Power Shortages: Demand Response andits Applications in Air Conditioning and Refrigerating Systems

    SciTech Connect (OSTI)

    Han, Junqiao; Piette, Mary Ann

    2007-11-30T23:59:59.000Z

    Demand response (DR) is an effective tool which resolves inconsistencies between electric power supply and demand. It further provides a reliable and credible resource that ensures stable and economical operation of the power grid. This paper introduces systematic definitions for DR and demand side management, along with operational differences between these two methods. A classification is provided for DR programs, and various DR strategies are provided for application in air conditioning and refrigerating systems. The reliability of DR is demonstrated through discussion of successful overseas examples. Finally, suggestions as to the implementation of demand response in China are provided.

  10. Solution of Air Conditioning Cooling Load Temperature for New Energy-Saving Walls

    E-Print Network [OSTI]

    Wang, X.; Hong, J.; Deying, L.

    2006-01-01T23:59:59.000Z

    ICEBO2006, Shenzhen, China Enve lope Technologies for Building Energy Efficiency Vol.II-3-5 Solution of Air Conditioning Cooling Load Temperature for New Energy-Saving Walls Xuejin Wang Jing Hong Deying Li School of Building.... The formula used to calculate the heat transfer ICEBO2006, Shenzhen, China Enve lope Technologies for Building Energy Efficiency Vol.II-3-5 thermal response factors are as follows: 0j = ? ? ? = ??+= 1 i )e1(BK)0(Y i ? ? Tab.1 New energy...

  11. Smart Operations of Air-Conditioning and Lighting Systems in a Government Buildings for Peak Power Reduction

    E-Print Network [OSTI]

    Al-Hadban, Y.; Maheshwari, G. P.; Al-Nakib, D.; Al-Mulla, A.; Alasseri, R.

    2010-01-01T23:59:59.000Z

    This paper presents the achievements of implementing smart operations strategies for air-conditioning (A/C) and lighting systems in Justice Palace Complex (JPC), Kuwait during the summer 2007. The peak load of this building was 3700 k...

  12. The effect of hardware configuration on the performance of residential air conditioning systems at high outdoor ambient temperatures

    E-Print Network [OSTI]

    Bain, Joel Alan

    1995-01-01T23:59:59.000Z

    A study was performed which investigated the effect of hardware configuration on air conditioning cooling system performance at high outdoor temperatures. The initial phase of the investigation involved the testing of ten residential air...

  13. Experimental Research and Performance Analysis of a Solar-Powered Air-conditioning System in a Green Building

    E-Print Network [OSTI]

    Zhai, X.; Wang, R.; Dai, Y.; Wu, J.

    2006-01-01T23:59:59.000Z

    Based on the green building of the Shanghai Institute of Architectural Science, a solar-powered adsorption air-conditioning system was designed. The operational performance under a typical operating mode in summer was studied, which includes...

  14. The Experimentation System Design and Experimental Study of the Air-Conditioning by Desiccant Type Using Solar Energy 

    E-Print Network [OSTI]

    Zhuo, X.; Ding, J.; Yang, X.; Chen, S.; Yang, J.

    2006-01-01T23:59:59.000Z

    Using a special solar air heater to gain heat power for regenerating an adsorption desiccant wheel made by composite silica gel, a desiccant air-conditioning experimentation system was designed and manufactured. Combining the advantage of measure...

  15. The Histoty of Ventilation and Air Conditioning is CERN Up to Date with the latest Technological Developments?

    E-Print Network [OSTI]

    Kühnl-Kinel, J

    2000-01-01T23:59:59.000Z

    The invention of ventilation cannot be ascribed to a certain date. It started with simple aeration when man brought fire into his abode and continued through different stages including air cooling using ice to finally arrive at the time when ventilation and air conditioning has become an essential part of our life and plays an important role in human evolution. This paper presents the history of ventilation and air conditioning, explains the key constraints over the centuries, and shows its influence on everyday life. Some examples of previous air-conditioning plants are described and different approaches to the way of calculation of ventilation systems discussed. It gives an overview of the Heating, Ventilation and Air Conditioning (HVAC) installations at CERN and points out their particularities. It also compares them with the latest technological developments in the field as well as showing the new trends that are being applied at CERN.

  16. Influence Of Upper Air Conditions On The Patagonia Icefields L. A. Rasmussen, H. Conway, C. F. Raymond

    E-Print Network [OSTI]

    Rasmussen, L.A.

    Influence Of Upper Air Conditions On The Patagonia Icefields L. A. Rasmussen, H. Conway, C. F to investigate changes in precipitation and snowfall over the Patagonia ice- fields during 1960-99. Apparently

  17. Energy Conservation and Comfort of Heat Pump Desiccant Air Conditioning System in Actual Living Space in Summer

    E-Print Network [OSTI]

    Miyashita, Yasushi

    Energy Conservation and Comfort of Heat Pump Desiccant Air Conditioning System in Actual Living and total heat exchanger in terms of both energy conservation and thermal comfort in summer. 1. COP

  18. Innovative Method for Performance Inspections often save 20-30% through Optimization of Air-Conditioning and Refrigeration

    E-Print Network [OSTI]

    Berglof, K.

    2010-01-01T23:59:59.000Z

    Air-conditioning, refrigeration and heat pump equipment is using 15 to 20% of the electrical energy globally. Many times these systems do not operate in an effective way. The paper present a method for and experience from performance testing...

  19. Advances in the development of energy efficient technologies: Sea Water Air Conditioning (SWAC)

    SciTech Connect (OSTI)

    Coony, J.E. [Boston Pacific Co., Inc., Washington, DC (United States)

    1996-11-01T23:59:59.000Z

    Sea water air conditioning (SWAC) is a cost effective and environmentally friendly alternative to and/or enhancement of air conditioning from mechanical chillers. SWAC pumps cold sea water from the appropriate ocean depths (50 to 3,000 feet depending on the climate and local characteristics) to the shore where it replaces (by direct cooling) or enhances (through use as condenser water) large mechanical chillers found in coastal facilities. SWAC direct cooling uses less than twenty per cent of the electricity of a mechanical chiller and uses no refrigerants whatsoever. Indirect cooling also offers substantial energy savings. Both systems dispense with the need for a cooling tower. Technical advances over the last twenty years in corrosion resistant alloys (titanium or aluminum), bio-fouling deterrence, and deep ocean pipeline deployment allow SWAC installations to use reliable, off-the-shelf technology. SWAC works in a variety of climates (existing installations are in Hawaii and Halifax, Nova Scotia), giving it significant domestic and international potential. Economy-of-scale advantages make it attractive to district cooling schemes.

  20. 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 [Department of Physics, Nanjing University, Nanjing 210093 (China)

    2010-09-15T23:59:59.000Z

    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)

  1. Robust optimization of a 2D air conditioning duct using kriging Deliverable WP.2.2.2.B of the ANR / OMD2 project

    E-Print Network [OSTI]

    Boyer, Edmond

    Robust optimization of a 2D air conditioning duct using kriging Deliverable WP.2.2.2.B of the ANR optimization of a 2D air conditioning duct. For comparison purposes, deterministic designs were first obtained air conditioning duct. The uncertainties affect the pipe shape. The mean response, expressed in terms

  2. LiCl Dehumidifier LiBr absorption chiller hybrid air conditioning system with energy recovery

    DOE Patents [OSTI]

    Ko, Suk M. (Huntsville, AL)

    1980-01-01T23:59:59.000Z

    This invention relates to a hybrid air conditioning system that combines a solar powered LiCl dehumidifier with a LiBr absorption chiller. The desiccant dehumidifier removes the latent load by absorbing moisture from the air, and the sensible load is removed by the absorption chiller. The desiccant dehumidifier is coupled to a regenerator and the desiccant in the regenerator is heated by solar heated hot water to drive the moisture therefrom before being fed back to the dehumidifier. The heat of vaporization expended in the desiccant regenerator is recovered and used to partially preheat the driving fluid of the absorption chiller, thus substantially improving the overall COP of the hybrid system.

  3. Cascade Reverse Osmosis Air Conditioning System: Cascade Reverse Osmosis and the Absorption Osmosis Cycle

    SciTech Connect (OSTI)

    None

    2010-09-01T23:59:59.000Z

    BEETIT Project: Battelle is developing a new air conditioning system that uses a cascade reverse osmosis (RO)-based absorption cycle. Analyses show that this new cycle can be as much as 60% more efficient than vapor compression, which is used in 90% of air conditioners. Traditional vapor-compression systems use polluting liquids for a cooling effect. Absorption cycles use benign refrigerants such as water, which is absorbed in a salt solution and pumped as liquid—replacing compression of vapor. The refrigerant is subsequently separated from absorbing salt using heat for re-use in the cooling cycle. Battelle is replacing thermal separation of refrigerant with a more efficient reverse osmosis process. Research has shown that the cycle is possible, but further investment will be needed to reduce the number of cascade reverse osmosis stages and therefore cost.

  4. New Automotive Air Conditioning System Simulation Tool Developed in MATLAB/Simulink

    SciTech Connect (OSTI)

    Kiss, T.; Chaney, L.; Meyer, J.

    2013-07-01T23:59:59.000Z

    Further improvements in vehicle fuel efficiency require accurate evaluation of the vehicle's transient total power requirement. When operated, the air conditioning (A/C) system is the largest auxiliary load on a vehicle; therefore, accurate evaluation of the load it places on the vehicle's engine and/or energy storage system is especially important. Vehicle simulation software, such as 'Autonomie,' has been used by OEMs to evaluate vehicles' energy performance. A transient A/C simulation tool incorporated into vehicle simulation models would also provide a tool for developing more efficient A/C systems through a thorough consideration of the transient A/C system performance. The dynamic system simulation software Matlab/Simulink was used to develop new and more efficient vehicle energy system controls. The various modeling methods used for the new simulation tool are described in detail. Comparison with measured data is provided to demonstrate the validity of the model.

  5. Evaluation Framework and Analyses for Thermal Energy Storage Integrated with Packaged Air Conditioning

    SciTech Connect (OSTI)

    Kung, F.; Deru, M.; Bonnema, E.

    2013-10-01T23:59:59.000Z

    Few third-party guidance documents or tools are available for evaluating thermal energy storage (TES) integrated with packaged air conditioning (AC), as this type of TES is relatively new compared to TES integrated with chillers or hot water systems. To address this gap, researchers at the National Renewable Energy Laboratory conducted a project to improve the ability of potential technology adopters to evaluate TES technologies. Major project outcomes included: development of an evaluation framework to describe key metrics, methodologies, and issues to consider when assessing the performance of TES systems integrated with packaged AC; application of multiple concepts from the evaluation framework to analyze performance data from four demonstration sites; and production of a new simulation capability that enables modeling of TES integrated with packaged AC in EnergyPlus. This report includes the evaluation framework and analysis results from the project.

  6. Japanese power electronics inverter technology and its impact on the American air conditioning industry

    SciTech Connect (OSTI)

    Ushimaru, Kenji.

    1990-08-01T23:59:59.000Z

    Since 1983, technological advances and market growth of inverter- driven variable-speed heat pumps in Japan have been dramatic. The high level of market penetration was promoted by a combination of political, economic, and trade policies in Japan. A unique environment was created in which the leading domestic industries-- microprocessor manufacturing, compressors for air conditioning and refrigerators, and power electronic devices--were able to direct the development and market success of inverter-driven heat pumps. As a result, leading US variable-speed heat pump manufacturers should expect a challenge from the Japanese producers of power devices and microprocessors. Because of the vertically-integrated production structure in Japan, in contrast to the out-sourcing culture of the United States, price competition at the component level (such as inverters, sensors, and controls) may impact the structure of the industry more severely than final product sales. 54 refs., 47 figs., 1 tab.

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

    SciTech Connect (OSTI)

    None

    2010-09-01T23:59:59.000Z

    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.

  8. Energy Performance Comparison of Heating and Air Conditioning Systems for Multi-Family Residential Buildings

    SciTech Connect (OSTI)

    Wang, Weimin; Zhang, Jian; Jiang, Wei; Liu, Bing

    2011-07-31T23:59:59.000Z

    The type of heating, ventilation and air conditioning (HVAC) system has a large impact on the heating and cooling energy consumption in multifamily residential buildings. This paper compares the energy performance of three HVAC systems: a direct expansion (DX) split system, a split air source heat pump (ASHP) system, and a closed-loop water source heat pump (WSHP) system with a boiler and an evaporative fluid cooler as the central heating and cooling source. All three systems use gas furnace for heating or heating backup. The comparison is made in a number of scenarios including different climate conditions, system operation schemes and applicable building codes. It is found that with the minimum code-compliant equipment efficiency, ASHP performs the best among all scenarios except in extremely code climates. WSHP tends to perform better than the split DX system in cold climates but worse in hot climates.

  9. Application of Genetic Algorithm to Optimal Design of Central Air-Conditioning Water System

    E-Print Network [OSTI]

    Feng, X.; Zou, Y.; Long, W.

    2006-01-01T23:59:59.000Z

    .25 150 121.86 0.1182 1.92 200 131.55 0.0218 376.9729 1.0864 19 19 20 4.5 150 99.58 0.1013 1.57 150 107.18 0.1013 1163.561 1.6857 20 20 21 1.8 80 22.29 0.965 1.17 65 24.28 2.3884 1408.019 1.8046 21 22 23 1 80 22.29 0.5361 1.17 80 24.24 0.5361 315.0493... Wuxi, P. R. China, 214122 Shanghai? P. R. China, 200070 fxp_99@126.com Zouyun_22@126.com WeidingLong@163.com Abstract: The optimal design of air-conditioning water system is an optimization problem of functions that depend on a series...

  10. Energy Savings and Economics of Advanced Control Strategies for Packaged Air-Conditioning Units with Gas Heat

    SciTech Connect (OSTI)

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

    2011-12-31T23:59:59.000Z

    Pacific Northwest National Laboratory (PNNL) with funding from the U.S. Department of Energy's Building Technologies Program (BTP) evaluated a number of control strategies that can be implemented in a controller, to improve the operational efficiency of the packaged air conditioning units. The two primary objectives of this research project are: (1) determine the magnitude of energy savings achievable by retrofitting existing packaged air conditioning units with advanced control strategies not ordinarily used for packaged units and (2) estimating what the installed cost of a replacement control with the desired features should be in various regions of the U.S. This document reports results of the study.

  11. Low-Flow Liquid Desiccant Air-Conditioning: Demonstrated Performance and Cost Implications

    SciTech Connect (OSTI)

    Kozubal, E.; Herrmann, L.; Deru, M.; Clark, J.; Lowenstein, A.

    2014-09-01T23:59:59.000Z

    Cooling loads must be dramatically reduced when designing net-zero energy buildings or other highly efficient facilities. Advances in this area have focused primarily on reducing a building's sensible cooling loads by improving the envelope, integrating properly sized daylighting systems, adding exterior solar shading devices, and reducing internal heat gains. As sensible loads decrease, however, latent loads remain relatively constant, and thus become a greater fraction of the overall cooling requirement in highly efficient building designs, particularly in humid climates. This shift toward latent cooling is a challenge for heating, ventilation, and air-conditioning (HVAC) systems. Traditional systems typically dehumidify by first overcooling air below the dew-point temperature and then reheating it to an appropriate supply temperature, which requires an excessive amount of energy. Another dehumidification strategy incorporates solid desiccant rotors that remove water from air more efficiently; however, these systems are large and increase fan energy consumption due to the increased airside pressure drop of solid desiccant rotors. A third dehumidification strategy involves high flow liquid desiccant systems. These systems require a high maintenance separator to protect the air distribution system from corrosive desiccant droplet carryover and so are more commonly used in industrial applications and rarely in commercial buildings. Both solid desiccant systems and most high-flow liquid desiccant systems (if not internally cooled) add sensible energy which must later be removed to the air stream during dehumidification, through the release of sensible heat during the sorption process.

  12. In-Cab Air Quality of Trucks Air Conditioned and Kept in Electrified Truck Stop

    SciTech Connect (OSTI)

    Lee, Doh-Won [Texas Transportation Institute; Zietsman, Josias [Texas Transportation Institute; Farzaneh, Mohamadreza [Texas Transportation Institute; Li, Wen-Whai [University of Texas, El Paso; Olvera, Hector [University of Texas, El Paso; Storey, John Morse [ORNL; Kranendonk, Laura [ORNL

    2009-01-01T23:59:59.000Z

    At night, long-haul truck drivers rest inside the cabins of their vehicles. Therefore, the in-cab air quality while air conditioning (A/C) is being provided can be a great concern to the drivers health. The effect of using different A/C methods [truck's A/C, auxiliary power unit (APU), and truck stop electrification (TSE) unit] on in-cab air quality of a heavy-duty diesel vehicle was investigated at an electrified truck stop in the El Paso, Texas, area. The research team measured the in-cabin and the ambient air quality adjacent to the parked diesel truck as well as emissions from the truck and an APU while it was providing A/C. The measured results were compared and analyzed. On the basis of these results, it was concluded that the TSE unit provided better in-cab air quality while supplying A/C. Furthermore, the truck and APU exhaust emissions were measured, and fuel consumption of the truck (while idling) and the APU (during operation) were compared. The results led to the finding that emissions from the APU were less than those from the truck's engine idling, but the APU consumed more fuel than the engine while providing A/C under given conditions.

  13. Implementation of Smart Operation Strategies for Air-Conditioning and Lighting Systems for Ministries Complex in the State of Kuwait

    E-Print Network [OSTI]

    Al-Mulla, A.; Maheshwari, G. P.; Al-Nakib, D.; Ishaqali, H.

    The smart operation strategies were implemented for Air-Conditioning (A/C) and lighting systems to reduce the national load at Ministries Complex (MC) in the state of Kuwait. The A/C system in MC is a district cooling system that comprises of 8...

  14. ENSC 461 PROJECT: Next generation air conditioning systems for vehicles Assigned date: Feb. 21, 2011 Due date: April 11, 2011

    E-Print Network [OSTI]

    Bahrami, Majid

    1 ENSC 461 PROJECT: Next generation air conditioning systems for vehicles Assigned date: Feb. 21's engine, or battery pack in case of HEVs and EVs. This power draw is equivalent to a 1200-kg sedan driving both systems under various driving and climate conditions. #12;2 The project report should also

  15. Comparative Study Between Air-Cooled and Water-Cooled Condensers of the Air-Conditioning Systems 

    E-Print Network [OSTI]

    Maheshwari, G. P.; Mulla Ali, A. A.

    2004-01-01T23:59:59.000Z

    The weather in Kuwait is very dry where the dry-bulb temperature exceeds the wet-bulb temperature more than 20oC in most of the summer months. Thus, the air-conditioning (A/C) system with the water-cooled (WC) condensers is expected to perform more...

  16. Comparative Study Between Air-Cooled and Water-Cooled Condensers of the Air-Conditioning Systems

    E-Print Network [OSTI]

    Maheshwari, G. P.; Mulla Ali, A. A.

    2004-01-01T23:59:59.000Z

    The weather in Kuwait is very dry where the dry-bulb temperature exceeds the wet-bulb temperature more than 20oC in most of the summer months. Thus, the air-conditioning (A/C) system with the water-cooled (WC) condensers is expected to perform more...

  17. 2014-06-23 Issuance: Energy Conservation Standards for Walk-in Coolers and Freezers; Air-Conditioning, Heating, & Refrigeration Institute Petition for Reconsideration

    Broader source: Energy.gov [DOE]

    This document is the agency response to the Energy Conservation Standards for Walk-in Coolers and Freezers; Air-Conditioning, Heating, & Refrigeration Institute Petition for Reconsideration.

  18. Proposal for the award of a contract for the design, supply, installation and commissioning of an HVAC (Heating, Ventilation and Air Conditioning) system for Building 3862

    E-Print Network [OSTI]

    2014-01-01T23:59:59.000Z

    Proposal for the award of a contract for the design, supply, installation and commissioning of an HVAC (Heating, Ventilation and Air Conditioning) system for Building 3862

  19. Proposal for the award of a contract for dismantling, removal and packaging of the existing Heating, Ventilation and Air-Conditioning (HVAC) systems in the PS tunnel

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

    Proposal for the award of a contract for dismantling, removal and packaging of the existing Heating, Ventilation and Air-Conditioning (HVAC) systems in the PS tunnel

  20. Proposal for the award of a contract for the design, supply, installation and commissioning of Heating, Ventilation and Air-Conditioning (HVAC) systems for the PS accelerator infrastructure

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

    Proposal for the award of a contract for the design, supply, installation and commissioning of Heating, Ventilation and Air-Conditioning (HVAC) systems for the PS accelerator infrastructure

  1. Proposal for the award of two service contracts for the operation, maintenance and other work relating to the heating, ventilation, air-conditioning and plumbing facilities at CERN

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    Proposal for the award of two service contracts for the operation, maintenance and other work relating to the heating, ventilation, air-conditioning and plumbing facilities at CERN

  2. Fuel Savings and Emission Reductions from Next-Generation Mobile Air Conditioning Technology in India

    SciTech Connect (OSTI)

    Chaney, L.; Thundiyil, K.; Andersen, S.; Chidambaram, S.; Abbi, Y. P.

    2007-01-01T23:59:59.000Z

    Up to 19.4% of vehicle fuel consumption in India is devoted to air conditioning (A/C). Indian A/C fuel consumption is almost four times the fuel penalty in the United States and close to six times that in the European Union because India's temperature and humidity are higher and because road congestion forces vehicles to operate inefficiently. Car A/C efficiency in India is an issue worthy of national attention considering the rate of increase of A/C penetration into the new car market, India's hot climatic conditions and high fuel costs. Car A/C systems originally posed an ozone layer depletion concern. Now that industrialized and many developing countries have moved away from ozone-depleting substances per Montreal Protocol obligations, car A/C impact on climate has captured the attention of policy makers and corporate leaders. Car A/C systems have a climate impact from potent global warming potential gas emissions and from fuel used to power the car A/Cs. This paper focuses on car A/C fuel consumption in the context of the rapidly expanding Indian car market and how new technological improvements can result in significant fuel savings and consequently, emission reductions. A 19.4% fuel penalty is associated with A/C use in the typical Indian passenger car. Car A/C fuel use and associated tailpipe emissions are strong functions of vehicle design, vehicle use, and climate conditions. Several techniques: reducing thermal load, improving vehicle design, improving occupants thermal comfort design, improving equipment, educating consumers on impacts of driver behaviour on MAC fuel use, and others - can lead to reduced A/C fuel consumption.

  3. A new route for energy efficiency diagnosis and potential analysis of energy consumption from air-conditioning system

    E-Print Network [OSTI]

    Ma,R.J.; Yu,N.Y.

    2014-01-01T23:59:59.000Z

    1 A new route for energy efficiency diagnosis and potential analysis of energy consumption from air-conditioning system Rong-Jiang Ma Nan-Yang Yu PhD candidate Professor School of Mechanical Engineering, Southwest Jiaotong... in buildings is to save energy without compromising comfort, health and productivity levels. In other words, the idea is to consume less energy while providing equal or improved building services, that is, being more energy efficient (Pérez-Lombard et al...

  4. Commercialization of air conditioning heat pump/water heater. Final technical report, Volume 3: Appendix F through I

    SciTech Connect (OSTI)

    NONE

    1996-01-30T23:59:59.000Z

    This is the final technical report on a commercialization project for an air conditioning heat pump water heater. The objective of the project was to produce a saleable system which would be economically competitive with natural gas and cost effective with regard to initial cost versus annual operating costs. The development and commercialization of the system is described. Compiled data included in numerous figures, tables and graphs.

  5. Commercialization of air conditioning heat pump/water heater. Final technical report, Volume 2: Appendix A through E

    SciTech Connect (OSTI)

    NONE

    1996-01-30T23:59:59.000Z

    This is the final technical report on a commercialization project for an air conditioning heat pump water heater. The objective of the project was to produce a saleable system which would be economically competitive with natural gas and cost effective with regard to initial cost versus annual operating costs. The development and commercialization of the system is described. Compiled data included in numerous figures, tables and graphs.

  6. Module Development and Simulation of the Variable Refrigerant Flow Air Conditioning System under Cooling Conditions in Energyplus

    E-Print Network [OSTI]

    Zhou, Y.; Wu, J.; Wang, R.; Shiochi, S.

    2006-01-01T23:59:59.000Z

    ICEBO2006, Shenzhen, China HVAC Technologies for Energy Efficiency Vol.IV-1-2 Module Development and Simulation of the Variable Refrigerant Flow Air Conditioning System under Cooling Conditions in Energyplus Yanping Zhou Jingyi..., especially for those who ICEBO2006, Shenzhen, China HVAC Technologies for Energy Efficiency Vol.IV-1-2 show some interest about high-efficiency systems like VRF, it becomes of interest to compare the VRF to other systems and evaluate VRF?s performance...

  7. Usage Demographics 2010

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengthening aTurbulence mayUndergraduateAbout Us Updatesproject0 NERSC Usage

  8. Usage Demographics 2011

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengthening aTurbulence mayUndergraduateAbout Us Updatesproject0 NERSC Usage1

  9. Usage Demographics 2011

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengthening aTurbulence mayUndergraduateAbout Us Updatesproject0 NERSC Usage12

  10. The Technical and Economical Analysis of a Centralized Air-Conditioning System with Cold Storage Refrigeration in High-Rise Residential Buildings

    E-Print Network [OSTI]

    Xiang, C.; Xie, G.

    2006-01-01T23:59:59.000Z

    In recent years, the application of a centralized air-conditioning system (CACS) with cold storage refrigeration in high-rise residential buildings has gradually increased. Due to the large difference between civil residential buildings...

  11. HYDROGEN USAGE AND STORAGE

    E-Print Network [OSTI]

    It is thought that it will be useful to inform society and people who are interested in hydrogen energy. The study below has been prepared due to this aim can be accepted as an article to exchange of information between people working on this subject. This study has been presented to reader to be utilized as a “technical note”. Main Energy sources coal, petroleum and natural gas are the fossil fuels we use today. They are going to be exhausted since careless usage in last decades through out the world, and human being is going to face the lack of energy sources in the near future. On the other hand as the fossil fuels pollute the environment makes the hydrogen important for an alternative energy source against to the fossil fuels. Due to the slow progress in hydrogen’s production, storage and converting into electrical energy experience, extensive usage of Hydrogen can not find chance for applications in wide technological practices. Hydrogen storage stands on an important point in the development of Hydrogen energy Technologies. Hydrogen is volumetrically low energy concentration fuel. Hydrogen energy, to meet the energy quantity necessary for the nowadays technologies and to be accepted economically and physically against fossil fuels, Hydrogen storage technologies have to be developed in this manner. Today the most common method in hydrogen storage may be accepted as the high pressurized composite tanks. Hydrogen is stored as liquid or gaseous phases. Liquid hydrogen phase can be stored by using composite tanks under very high pressure conditions. High technology composite material products which are durable to high pressures, which should not be affected by hydrogen embrittlement and chemical conditions.[1

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

    SciTech Connect (OSTI)

    Not Available

    2012-07-01T23:59:59.000Z

    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.

  13. Advanced control strategies for heating, ventilation, air-conditioning, and refrigeration systems—An overview: Part I: Hard control

    SciTech Connect (OSTI)

    D. Subbaram Naidu; Craig G. Rieger

    2011-02-01T23:59:59.000Z

    A chronological overview of the advanced control strategies for heating, ventilation, air-conditioning, and refrigeration (HVAC&R) is presented in this article. The overview focuses on hard-computing or control techniques, such as proportional-integral-derivative, optimal, nonlinear, adaptive, and robust; soft-computing or control techniques, such as neural networks, fuzzy logic, genetic algorithms; and on the fusion or hybrid of hard- and soft-control techniques. Thus, it is to be noted that the terminology “hard” and “soft” computing/control has nothing to do with the “hardware” and “software” that is being generally used. Part I of a two-part series focuses on hard-control strategies, and Part II focuses on softand fusion-control in addition to some future directions in HVAC&R research. This overview is not intended to be an exhaustive survey on this topic, and any omission of other works is purely unintentional.

  14. Experimental Study in Energy Performance of Temperature and Humidity Independent Control System with Multiple Split Air-Conditioning System

    E-Print Network [OSTI]

    Kawano,M.

    2014-01-01T23:59:59.000Z

    to realizing Zero Energy Buildings (ZEB). 61% ?F ?F The amount of solar power Performance improvement of a building ? 30% reduction Efficiency of the air conditioning system ? 60? reduction 60% over reduction E le ct ri c P o w e r C o n su m p ti o n (K W h...-09-16 Proceedings of the 14th International Conference for Enhanced Building Operations, Beijing, China, September 14-17, 2014 80 0.1 0.2 0.3 0.4 0.5 0.6 1? 4? 1? 11 ? 1? 16 ? 1? 17 ? 1? 18 ? 1? 21 ? 1? 22 ? 1? 30 ? 1? 31 ? 2? 1? 2? 4? 2? 5? 2? 6? 2? 7? 2? 8? 2? 12...

  15. Impact of Charge Degradation on the Life Cycle Climate Performance of a Residential Air-Conditioning System

    SciTech Connect (OSTI)

    Beshr, Mohamed [University of Maryland, College Park; Aute, Vikrant [University of Maryland, College Park; Abdelaziz, Omar [ORNL; Fricke, Brian A [ORNL; Radermacher, Reinhard [University of Maryland, College Park

    2014-01-01T23:59:59.000Z

    Vapor compression systems continuously leak a small fraction of their refrigerant charge to the environment, whether during operation or servicing. As a result of the slow leak rate occurring during operation, the refrigerant charge decreases until the system is serviced and recharged. This charge degradation, after a certain limit, begins to have a detrimental effect on system capacity, energy consumption, and coefficient of performance (COP). This paper presents a literature review and a summary of previous experimental work on the effect of undercharging or charge degradation of different vapor compression systems, especially those without a receiver. These systems include residential air conditioning and heat pump systems utilizing different components and refrigerants, and water chiller systems. Most of these studies show similar trends for the effect of charge degradation on system performance. However, it is found that although much experimental work exists on the effect of charge degradation on system performance, no correlation or comparison between charge degradation and system performance yet exists. Thus, based on the literature review, three different correlations that characterize the effect of charge on system capacity and energy consumption are developed for different systems as follows: one for air-conditioning systems, one for vapor compression water-to-water chiller systems, and one for heat pumps. These correlations can be implemented in vapor compression cycle simulation tools to obtain a better prediction of the system performance throughout its lifetime. In this paper, these correlations are implemented in an open source tool for life cycle climate performance (LCCP) based design of vapor compression systems. The LCCP of a residential air-source heat pump is evaluated using the tool and the effect of charge degradation on the results is studied. The heat pump is simulated using a validated component-based vapor compression system model and the LCCP results obtained using the three charge degradation correlations are compared.

  16. Problem of Vain Energy Consumption in a VAV Air Conditioning System Shared By an Inner Zone and Exterior Zone

    E-Print Network [OSTI]

    Wenji, G.; Ling, C.; Dongdong, L.; Mei, S.; Li, Z.

    2006-01-01T23:59:59.000Z

    In northern China, there are a large number of space buildings divided in inner zone and exterior zone based on usage requirements. The exterior zone needs to be heated in winter and cooled in summer, while the inner zone needs to be cooled both...

  17. Field Demonstration of a High-Efficiency Packaged Rooftop Air Conditioning Unit at Fort Gordon, Augusta, GA

    SciTech Connect (OSTI)

    Armstrong, Peter R.; Sullivan, Gregory P.; Parker, Graham B.

    2006-03-31T23:59:59.000Z

    As part of a larger program targeting the market transformation of packaged rooftop air conditioning, five high-efficiency rooftop air conditioning products were selected in 2002 by the U.S. Department of Energy (DOE) under the Unitary Air Conditioner (UAC) Technology Procurement (http://www.pnl.gov/uac). In February 2003, Fort Gordon in Augusta, Georgia was chosen as the demonstration site. With the goal of validating the field performance and operation of one of the awarded products, a 10-ton high-efficiency packaged rooftop unit (RTU) manufactured by Global Energy Group (GEG) was installed at Fort Gordon in October 2003. Following equipment installation, power metering, air- and refrigerant-side instrumentation was installed on the GEG RTU and a 4-year old typical-efficiency 20-ton RTU manufactured by AAON . The GEG and AAON units were instrumented identically and operated May through July, 2005, to observe performance under a range of conditions. Based on the data collected as part of this demonstration, the GEG equipment performed at least 8% better in stage-1 (single compressor running) cooling and at least 16% better in stage-2 (both compressors running) than the baseline AAON equipment. Performance comparisons are based on what we call application EER normalized to equivalent specific fan power. The full-load, specific-fan-power-normalized application EERs at ARI design conditions were 10.48 Btu/Wh for the GEG and 9.00 Btu/Wh for the baseline machine. With a cost premium of nearly 50%, and slightly higher maintenance costs, the life-cycle cost analysis shows that the GEG technology pays for itself--a positive net-present value (NPV)--only in climates and buildings with long cooling seasons. Manufacture of this equipment on a larger scale can be expected to reduce costs to the point where it is more broadly cost-effective. The assumed 10-ton baseline and new-technology unit costs are $3824.00 and $5525.00 respectively. If the new technology cost is assumed to drop as sales increase to $4674.50 for a 10-ton unit (i.e. the original cost difference is halved), the life-cycle costs improve. A grid of first cost, annual maintenance cost and electricity price is enumerated and the results presented in the report show the sensitivity of life cycle cost to these three financial parameters in each of eight different climates.

  18. Air conditioning system

    DOE Patents [OSTI]

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

    2005-02-01T23:59:59.000Z

    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.

  19. Impact of Solar Control PVB Glass on Vehicle Interior Temperatures, Air-Conditioning Capacity, Fuel Consumption, and Vehicle Range

    SciTech Connect (OSTI)

    Rugh, J.; Chaney, L.; Venson, T.; Ramroth, L.; Rose, M.

    2013-04-01T23:59:59.000Z

    The objective of the study was to assess the impact of Saflex1 S-series Solar Control PVB (polyvinyl butyral) configurations on conventional vehicle fuel economy and electric vehicle (EV) range. The approach included outdoor vehicle thermal soak testing, RadTherm cool-down analysis, and vehicle simulations. Thermal soak tests were conducted at the National Renewable Energy Laboratory's Vehicle Testing and Integration Facility in Golden, Colorado. The test results quantified interior temperature reductions and were used to generate initial conditions for the RadTherm cool-down analysis. The RadTherm model determined the potential reduction in air-conditioning (A/C) capacity, which was used to calculate the A/C load for the vehicle simulations. The vehicle simulation tool identified the potential reduction in fuel consumption or improvement in EV range between a baseline and modified configurations for the city and highway drive cycles. The thermal analysis determined a potential 4.0% reduction in A/C power for the Saflex Solar PVB solar control configuration. The reduction in A/C power improved the vehicle range of EVs and fuel economy of conventional vehicles and plug-in hybrid electric vehicles.

  20. Deemed Savings Estimates for Legacy Air Conditioning and WaterHeating Direct Load Control Programs in PJM Region

    SciTech Connect (OSTI)

    Goldman, Charles

    2007-03-01T23:59:59.000Z

    During 2005 and 2006, the PJM Interconnection (PJM) Load Analysis Subcommittee (LAS) examined ways to reduce the costs and improve the effectiveness of its existing measurement and verification (M&V) protocols for Direct Load Control (DLC) programs. The current M&V protocol requires that a PURPA-compliant Load Research study be conducted every five years for each Load-Serving Entity (LSE). The current M&V protocol is expensive to implement and administer particularly for mature load control programs, some of which are marginally cost-effective. There was growing evidence that some LSEs were mothballing or dropping their DLC programs in lieu of incurring the expense associated with the M&V. This project had several objectives: (1) examine the potential for developing deemed savings estimates acceptable to PJM for legacy air conditioning and water heating DLC programs, and (2) explore the development of a collaborative, regional, consensus-based approach for conducting monitoring and verification of load reductions for emerging load management technologies for customers that do not have interval metering capability.

  1. 23.11.2014bo Akademi Univ -Thermal and Flow Engineering Piispankatu 8, 20500 Turku 1/36 7. Air conditioning, cooling towers

    E-Print Network [OSTI]

    Zevenhoven, Ron

    23.11.2014Åbo Akademi Univ - Thermal and Flow Engineering Piispankatu 8, 20500 Turku 1/36 7. Air conditioning, cooling towers Ron Zevenhoven Åbo Akademi University Thermal and Flow Engineering Laboratory Engineering Piispankatu 8, 20500 Turku 2/36 7.1 Humid air #12;23.11.2014 Åbo Akademi Univ - Thermal and Flow

  2. ISSUANCE 2015-07-27: Energy Conservation Program: Test Procedures for Small, Large, and Very Large Air-Cooled Commercial Package Air Conditioning and Heating Equipment, Notice of Proposed Rulemaking

    Broader source: Energy.gov [DOE]

    Energy Conservation Program: Test Procedures for Small, Large, and Very Large Air-Cooled Commercial Package Air Conditioning and Heating Equipment, Notice of Proposed Rulemaking

  3. Performance and evaluation of gas engine driven rooftop air conditioning equipment at the Willow Grove (PA) Naval Air Station

    SciTech Connect (OSTI)

    Armstrong, P.R.; Conover, D.R.

    1993-05-01T23:59:59.000Z

    In a field evaluation conducted for the US Department of Energy (DOE) Office of Federal Energy Management Program (FEMP), the Pacific Northwest Laboratory (PNL) examined the performance of a new US energy-related technology under the FEMP Test Bed Demonstration Program. The technology was a 15-ton natural gas engine driven roof top air conditioning unit. Two such units were installed on a naval retail building to provide space conditioning to the building. Under the Test Bed Demonstration Program, private and public sector interests are focused to support the installation and evaluation of new US technologies in the federal sector. Participating in this effort under a Cooperative Research and Development Agreement (CRADA) with DOE were the American Gas Cooling Center, Philadelphia Electric Company, Thermo King Corporation, and the US Naval Air Station at Willow Grove, Pennsylvania. Equipment operating and service data as well as building interior and exterior conditions were secured for the 1992 cooling season. Based on a computer assessment of the building using standard weather data, a comparison was made with the energy and operating costs associated with the previous space conditioning system. Based on performance during the 1992 cooling season and adjusted to a normal weather year, the technology will save the site $6,000/yr in purchased energy costs. An additional $9,000 in savings due to electricity demand ratchet charge reductions will also be realized. Detailed information on the technology, the installation, and the results of the technology test are provided to illustrate the advantages to the federal sector of using this technology. A history of the CRADA development process is also reported.

  4. Reducing the Energy Usage of Oce Applications

    E-Print Network [OSTI]

    Flinn, Jason

    Reducing the Energy Usage of OÆce Applications Jason Flinn 1 , Eyal de Lara 2 , M. Satyanarayanan 1 of the energy usage of Microsoft's PowerPoint application and show that adaptive policies can reduce energy research e#11;ort, no silver bullet for reducing energy usage has yet been found. Instead, a comprehensive

  5. Proposal for the award of a contract for the supply and installation of an air-conditioning system for the CERN Computer Centre

    E-Print Network [OSTI]

    2005-01-01T23:59:59.000Z

    This document concerns the award of a contract for the supply and installation of an air-conditioning system for the CERN Computer Centre. The Finance Committee is invited to agree to the negotiation of a contract with INIZIATIVE INDUSTRIALI (IT), the lowest bidder, for the supply and installation of an air-conditioning system for the CERN Computer Centre for a total amount of 2 375 280 euros (3 654 277 Swiss francs) not subject to revision, with options for additional chillers, chilled water coils and sound attenuation, for an additional amount of 539 053 euros (829 312 Swiss francs), bringing the total amount to 2 914 333 euros (4 483 589 Swiss francs), not subject to revision. The rate of exchange used is that stipulated in the tender.

  6. usage_household2001.pdf

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1Stocksa. Appliances by Climate Zone,8,1996and8.1 64.1 4.2 1.8Usage

  7. 2014-09-23 Issuance: Energy Conservation Standard for Walk-in Coolers and Freezers; Air-Conditioning, Heating, & Refrigeration Institute Petition for Reconsideration Notice of Public Meeting

    Broader source: Energy.gov [DOE]

    This document is a pre-publication Federal Register notice of public meeting regarding energy conservation standards for walk-in coolers and freezers; Air-Conditioning, Heating, & Refrigeration Institute petition for reconsideration, as issued by the Deputy Assistant Secretary for Energy Efficiency on September 23, 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.

  8. Section 6 -Facilities Usage and Maintenance A. Facilities Usage and Maintenance

    E-Print Network [OSTI]

    Pantaleone, Jim

    Section 6 - Facilities Usage and Maintenance A. Facilities Usage and Maintenance 1 be held financially responsible. Financial responsibility extends to abandoned belongings, excessive is not permitted under any circumstances. Storage facilities are provided in most student housing units for storing

  9. Proposal for the award of a contract for the design, supply, installation and commissioning of a Heating, Ventilation and Air-Conditioning (HVAC) system for the computer room of the CERN Control Centre

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

    Proposal for the award of a contract for the design, supply, installation and commissioning of a Heating, Ventilation and Air-Conditioning (HVAC) system for the computer room of the CERN Control Centre

  10. Proposal for the award of a contract for the design, supply, installation and commissioning of a Heating Ventilation and Air Conditioning (HVAC) system for the HIE-ISOLDE infrastructure

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

    Proposal for the award of a contract for the design, supply, installation and commissioning of a Heating Ventilation and Air Conditioning (HVAC) system for the HIE-ISOLDE infrastructure

  11. 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.

    2007-05-01T23:59:59.000Z

    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.

  12. Computer Science MAPO: Mining API Usages from

    E-Print Network [OSTI]

    Xie, Tao

    Computer Science MAPO: Mining API Usages from Open Source Repositories Tao Xie Department of Computer Science North Carolina State University, USA Jian Pei Department of Computer Science Simon Fraser University, Canada ·http://ase.csc.ncsu.edu/ #12;Computer Science Learning API Usages is Challenging ·org

  13. Performance and evaluation of gas-engine-driven rooftop air conditioning equipment at the Willow Grove Naval Air Station. Final report (revised October 21, 1996)

    SciTech Connect (OSTI)

    Armstrong, P.R.; Katipamula, S.

    1996-10-01T23:59:59.000Z

    The performance was evaluated of a new US cooling technology that has been installed for the first time at a federal facility. The technology is a 15-ton natural gas-engine-driven rooftop air conditioning unit made by Thermo King. Two units were installed to serve the Navy Exchange at Willow Grove. The savings potential at Willow Grove is described and that in the federal sector estimated. Conditions for implementation are discussed. In summary, the new technology is generally cost-effective at sites where marginal electricity cost (per MBtu at the meter) is more than 4 times the marginal gas cost (per MBtu at the meter) and annual full-load-equivalent cooling hours exceed 2,000.

  14. Recent Trends in Car Usage in Advanced Economies - Slower Growth...

    Open Energy Info (EERE)

    Trends in Car Usage in Advanced Economies - Slower Growth Ahead? Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Recent Trends in Car Usage in Advanced Economies -...

  15. Style and Usage Guidelines for Written Communications

    E-Print Network [OSTI]

    Rose, Michael R.

    Style and Usage Guidelines for Written Communications Administrative and Business Services #12 Construction Commas Capitalization and the "Uniqueness Rule" Selected Style Guidelines Apostrophes Colons Fonts of Comparative Statements Indented Bullets Communicating Using Numbers ZotMail Messages #12;- 1 - Introduction

  16. Material impacts on operational energy usage

    E-Print Network [OSTI]

    Love, Andrea, S.M. Massachusetts Institute of Technology

    2011-01-01T23:59:59.000Z

    Decisions regarding materials and construction of a building are made all the time in the architectural process, but thought is not always given to how those choices may affect the buildings ultimate energy usage and the ...

  17. .......Agnew Hall .......Air Conditioning Facility

    E-Print Network [OSTI]

    Buehrer, R. Michael

    /Burleson Tennis Center .......Burruss Hall .......Campbell Hall .......Cassell Coliseum .......Central Stores .......Dietrick Hall .......Durham Hall .......Eggleston Hall .......Engel Hall D.....English Field .......Femoyer .......Golf Course Clubhouse .......Graduate Life Center at ........Donaldson Brown .......Greenhouses

  18. Optimization of Air Conditioning Cycling

    E-Print Network [OSTI]

    Seshadri, Swarooph

    2012-10-19T23:59:59.000Z

    on a 3-ton residential air conditioner are then presented to intuitively understand the effect of expansion valve and evaporator fan cycling in a real system. A real time optimization method is explored and the feasibility, recommendations for a...

  19. Air Conditioning | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you sure you want toworldPower 2010 1A Potential PathAddingAhorre

  20. Air Conditioning | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube platform is alwaysISO 50001EnergyNewsletterAdvocateInnovations inEnergyAir

  1. USAGE-BASED PRICING DIFFERENTIATION FOR

    E-Print Network [OSTI]

    Huang, Jianwei

    cost, complex pricing schemes are not "customer- friendly" and discourage customers from usingCHAPTER 1 USAGE-BASED PRICING DIFFERENTIATION FOR COMMUNICATION NETWORKS: INCOMPLETE INFORMATION AND LIMITED PRICING CHOICES Shuqin Li, Ph.D.1 and Jianwei Huang, Ph.D.2 1 Research and Innovation, Alcatel

  2. VEHICLE USAGE AGREEMENT DEPARTMENT OF BIOLOGICAL SCIENCE

    E-Print Network [OSTI]

    Ronquist, Fredrik

    VEHICLE USAGE AGREEMENT DEPARTMENT OF BIOLOGICAL SCIENCE All drivers of vehicles must certify to the following: 1. I certify that I have a valid driver's license appropriate for the vehicle type and will abide belts. 2. I have read and understand the vehicle operating policies and procedures as defined

  3. Balanced Codon Usage Optimizes Eukaryotic Translational Efficiency

    E-Print Network [OSTI]

    Zhang, Jianzhi

    Balanced Codon Usage Optimizes Eukaryotic Translational Efficiency Wenfeng Qian1 , Jian-Rong Yang1, Guangzhou, China Abstract Cellular efficiency in protein translation is an important fitness determinant and that translational efficiency is maximized by the exclusive use of rapidly translated codons. Here we estimate

  4. University Town Management Office Town Green Usage

    E-Print Network [OSTI]

    Chaudhuri, Sanjay

    University Town Management Office Town Green Usage Background The UTown Management Office (UTMO the sustainability of the Green as the Office of Estate & Development (OED) has highlighted that the landscape consultant has advised that it would require about one year period for the soil to settle to its final level

  5. Report on Activities And Usage Statistics of

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    of the Mobile Learning Portal, at mobilelearningportal.org. This Web site is a #12;Learning Technology CenterReport on Activities And Usage Statistics of Learning Technology Center Services and Facilities 2009-2010 #12;Learning Technology Center Review 2009-2010 December 2010 2 Report on Activities

  6. Performance and evaluation of gas engine driven rooftop air conditioning equipment at the Willow Grove (PA) Naval Air Station. Interim report, 1992 cooling season

    SciTech Connect (OSTI)

    Armstrong, P.R.; Conover, D.R.

    1993-05-01T23:59:59.000Z

    In a field evaluation conducted for the US Department of Energy (DOE) Office of Federal Energy Management Program (FEMP), the Pacific Northwest Laboratory (PNL) examined the performance of a new US energy-related technology under the FEMP Test Bed Demonstration Program. The technology was a 15-ton natural gas engine driven roof top air conditioning unit. Two such units were installed on a naval retail building to provide space conditioning to the building. Under the Test Bed Demonstration Program, private and public sector interests are focused to support the installation and evaluation of new US technologies in the federal sector. Participating in this effort under a Cooperative Research and Development Agreement (CRADA) with DOE were the American Gas Cooling Center, Philadelphia Electric Company, Thermo King Corporation, and the US Naval Air Station at Willow Grove, Pennsylvania. Equipment operating and service data as well as building interior and exterior conditions were secured for the 1992 cooling season. Based on a computer assessment of the building using standard weather data, a comparison was made with the energy and operating costs associated with the previous space conditioning system. Based on performance during the 1992 cooling season and adjusted to a normal weather year, the technology will save the site $6,000/yr in purchased energy costs. An additional $9,000 in savings due to electricity demand ratchet charge reductions will also be realized. Detailed information on the technology, the installation, and the results of the technology test are provided to illustrate the advantages to the federal sector of using this technology. A history of the CRADA development process is also reported.

  7. Table B28. Percent of Floorspace Heated, Number of Buildings and Floorspace, 199

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are nowTotal" (Percent) Type: Sulfur Content API GravityDakota" "Fuel, quality", 2013,Iowa"Dakota" ,"FullWestQuantity of2".

  8. Table B29. Percent of Floorspace Cooled, Number of Buildings and Floorspace, 199

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are nowTotal" (Percent) Type: Sulfur Content API GravityDakota" "Fuel, quality", 2013,Iowa"Dakota" ,"FullWestQuantity of2".9. Percent of

  9. "Table A7. Enclosed Floorspace and Conditioned Floorspace"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1Stocksa. AppliancesTotal"1" "

  10. Monitoring the usage of a computer system

    SciTech Connect (OSTI)

    Bailey, D.J.

    1987-11-01T23:59:59.000Z

    Controlling the usage of computer systems particularly those operated for the federal government, is an important topic today. Audit requirements have grown to the point where they can be a significant burden to the proprietors of the system. The paper briefly mentions several proposals for responding to increased audit requirements and for monitoring a system to detect unauthorized activity. A technique is proposed for situations where the proscribed or the intended activity can be characterized in terms of program or system performance parameters. The design of a usage monitoring system is outlined. The design is based on enhancing the audit data provided by the monitored system, capturing the audit data in a separate system to protect it from user access, and implementing one of the audit trail analysis systems currently under development.

  11. Reducing Energy Usage in Extractive Distillation

    E-Print Network [OSTI]

    Saxena, A. C.; Bhandari, V. A.

    , .. ~ REDUCING ENERGY USAGE IN,EXTRACTIVE DISTILLATION A. C. Saxena V. A. Bhandari Polysar Limited Sarnia, Ontario, Canada Abstract Butadiene 1:3 is separated from other C. hydrocarbons by extractive distillation in a sieve plate tower.... To improve the energy efficiency, butadiene recovery and productivity of the extractive distillation process, many process changes have been made. Their rationale, the methodology used to implement the various changes, and how they affected the process...

  12. Predicting energy usage in a supermarket

    E-Print Network [OSTI]

    Schrock, Derek Wayne

    1989-01-01T23:59:59.000Z

    PREDICTING ENERGY USAGE IN A SUPERMARKET A Thesis by DEREK WAYNE SCHROCK Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 1989 Major...), which consuine 24. 8% of the energy used by all commercial buildings [1]. This thesis reports on work intended to identify conservation opportunities in the mercantile services category by focusing on operational and maintenance problems. A major...

  13. Cognitive Structures Underlying Gendered Language Usage in Germany: Narration and Linguistic Fieldwork

    E-Print Network [OSTI]

    Kolar, Meredith

    2011-01-01T23:59:59.000Z

    Gendered Language Usage in Germany: Narration and LinguisticGendered Language Usage in Germany: Narration and LinguisticGendered Language Usage in Germany: Narration and Linguistic

  14. Similarity measure to identify users' profiles in web usage mining

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Similarity measure to identify users' profiles in web usage mining Firas Abou Latif -- Nicolas information. It makes the website browsing process even harder. This paper addresses the web usage mining problématique ré- currente. Le Web Usage Mining, qui tente de résoudre ce problème, propose des techniques

  15. Optimization of the Energy Usage at CERN

    E-Print Network [OSTI]

    Burckhart, H J; Caspers, F; Doré, V; Gatignon, L; Martel, C; Nonis, M; Tommasini, D

    2013-01-01T23:59:59.000Z

    Some of the efforts of CERN to optimize its energy usage are presented. Work is proceeding in several areas: campus and infrastructure, accelerators and beam lines, as well as R&D for future accelerators. The existing building stock is being renovated and new buildings apply an integrated energy concept. The energy efficiency of the accelerators and beam lines can be further enhanced by powering more equipment dynamically only during the time it is really needed. For designing new accelerators novel approaches are being investigated to re-use energy which in today’s installations gets dumped thermally.

  16. An assessment of worldwide supercomputer usage

    SciTech Connect (OSTI)

    Wasserman, H.J.; Simmons, M.L.; Hayes, A.H.

    1995-01-01T23:59:59.000Z

    This report provides a comparative study of advanced supercomputing usage in Japan and the United States as of Spring 1994. It is based on the findings of a group of US scientists whose careers have centered on programming, evaluating, and designing high-performance supercomputers for over ten years. The report is a follow-on to an assessment of supercomputing technology in Europe and Japan that was published in 1993. Whereas the previous study focused on supercomputer manufacturing capabilities, the primary focus of the current work was to compare where and how supercomputers are used. Research for this report was conducted through both literature studies and field research in Japan.

  17. How Usage is Charged at NERSC

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC) EnvironmentalGyroSolé(tm) HarmonicbetandEnergy 2010 ABringof Energyusage is

  18. Risk Factors in Heating, Ventilating, and Air-Conditioning Systemsfor Occupant Symptoms in U.S. Office Buildings: the EPA BASE Study

    SciTech Connect (OSTI)

    Mendell, M.J.; Lei-Gomez, Q.; Mirer, A.; Seppanen, O.; Brunner, G.

    2006-10-01T23:59:59.000Z

    Nonspecific building-related symptoms among occupants of modern office buildings worldwide are common and may be associated with important reductions in work performance, but their etiology remains uncertain. Characteristics of heating, ventilating, and air-conditioning (HVAC) systems in office buildings that increase risk of indoor contaminants or reduce effectiveness of ventilation may cause adverse exposures and subsequent increase in these symptoms among occupants. We analyzed data collected by the U.S. EPA from a representative sample of 100 large U.S. office buildings--the Building Assessment and Survey Evaluation (BASE) study--using multivariate logistic regression models with generalized estimating equations adjusted for potential personal and building confounders. We estimated odds ratios (ORs) and 95% confidence intervals (CIs) for associations between seven building-related symptom outcomes and selected HVAC system characteristics. Among factors of HVAC design or configuration: Outdoor air intakes less than 60 m above the ground were associated with approximately doubled odds of most symptoms assessed. Sealed (non-operable) windows were associated with increases in skin and eye symptoms (ORs= 1.9, 1.3, respectively). Outdoor air intake without an intake fan was associated with an increase in eye symptoms (OR=1.7). Local cooling coils were associated with increased headache (OR=1.5). Among factors of HVAC condition, maintenance, or operation: the presence of humidification systems in good condition was associated with an increase in headache (OR=1.4), whereas the presence of humidification systems in poor condition was associated with increases in fatigue/difficulty concentrating, as well as upper respiratory symptoms (ORs=1.8, 1.5). No regularly scheduled inspections for HVAC components was associated with increased eye symptoms, cough and upper respiratory symptoms (ORs=2.2, 1.6, 1.5). Less frequent cleaning of cooling coils or drip pans was associated with increased headache (OR=1.6). Fair or poor condition of duct liner was associated with increased upper respiratory symptoms (OR=1.4). Most of the many potential risk factors assessed here had not been investigated previously, and associations found with single symptoms may have been by chance, including several associations that were the reverse of expected. Risk factors newly identified in these analyses that deserve attention include outdoor air intakes less than 60 m above the ground, lack of operable windows, poorly maintained humidification systems, and lack of scheduled inspection for HVAC systems. Infrequent cleaning of cooling coils and drain pans were associated with increases in several symptoms in these as well as prior analyses of BASE data. Replication of these findings is needed, using more objective measurements of both exposure and health response. Confirmation of the specific HVAC factors responsible for increased symptoms in buildings, and development of prevention strategies could have major public health and economic benefits worldwide.

  19. Gene expression level influences amino acid usage, but not codon usage, in the tsetse fly

    E-Print Network [OSTI]

    Herbeck, Joshua

    and configuration of amino acid differences between Wigglesworthia and Escherichia coli were compared to test and Evolution, Marine Biological Laboratory, 7 MBL Street, Woods Hole, MA 02543, USA 2 Department of Biological to distinct patterns of genome evolu- tion. Synonymous codon usage in the free-living bacteria Escherichia

  20. adjunctive antimetabolite usage: Topics by E-print Network

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

    Libraries (CUL). While Rosen, Jay 397 Mining Usage Data and Development Artifacts Olga Baysal, Reid Holmes, and Michael W. Godfrey Computer Technologies and Information...

  1. anthelmintic usage perspectives: Topics by E-print Network

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

    Libraries (CUL). While Rosen, Jay 380 Mining Usage Data and Development Artifacts Olga Baysal, Reid Holmes, and Michael W. Godfrey Computer Technologies and Information...

  2. Energy usage in oil and gas extraction

    SciTech Connect (OSTI)

    Honeycutt, B.D.

    1991-05-01T23:59:59.000Z

    This report was prepared in partial fulfillment of Subcontract No. C90-103207 by Baxter D. Honeycutt, P.E., Richardson Texas, for the Idaho National Engineering Laboratory (INEL) and the US DOE, INEL requirements, for the requested report were outlined by letter dated September 4, 1990, included the following: process flow diagrams and descriptive discussions of technical operations; mass and energy balances; a summary of energy-saving opportunities with the cross-cutting technologies emphasized; trends of oil and gas production versus energy expended to achieve new production; conclusions and recommendations for future research. The National Energy Account (NEA) data on energy usage in oil and gas related extraction processes are reproduced for reference. Energy cost and production are given for oil and gas well drilling, crude oil and production, national gas production, and natural gas liquid production.

  3. 2014-11-25 Issuance: Energy Conservation Standards for Small, Large, and Very Large Air-cooled Commercial Package Air Conditioning and Heating Equipment; Extension of Public Comment Period

    Broader source: Energy.gov [DOE]

    This document is a pre-publication Federal Register extension of the public comment period regarding energy conservation standards for small, large and very large air-cool commercial package air conditioning and heating equipment, as issued by the Deputy Assistant Secretary for Energy Efficiency on November 25, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

  4. KOINOTITES: A Web Usage Mining Tool for Personalization

    E-Print Network [OSTI]

    Paliouras, George

    KOINOTITES: A Web Usage Mining Tool for Personalization Dimitrios Pierrakos Inst. of Informatics@iit.demokritos.gr SUMMARY This paper presents the Web Usage Mining system KOINOTITES, which uses data mining techniques for the construction of user communities on the Web. User communities model groups of visitors in a Web site, who have

  5. A MOOS MODULE FOR MONITORING ENERGY USAGE OF AUTONOMOUS VEHICLES

    E-Print Network [OSTI]

    Idaho, University of

    A MOOS MODULE FOR MONITORING ENERGY USAGE OF AUTONOMOUS VEHICLES Anthony Kanago, Kevin Roos, James--Tracking the energy usage of an autonomous underwater vehicle (AUV) and making accurate data available provides is particularly relevant in the context of long, open-sea missions: energy consumption. A vehicle operating

  6. Research article Statistics usage by French academic libraries a

    E-Print Network [OSTI]

    Boyer, Edmond

    1/15 Research article Statistics usage by French academic libraries ­ a survey Chérifa BOUKACEM of digital resources in academic libraries, the small number of articles dedicated to the processing of usage-ZEGHMOURI Université Lyon 1 Joachim SCH�PFEL Université Charles-de-Gaulle Lille 3 Abstract The article presents

  7. The Impact of Residential Density on Vehicle Usage and Energy Consumption

    E-Print Network [OSTI]

    Golob, Thomas F; Brownstone, David

    2005-01-01T23:59:59.000Z

    on Vehicle Usage and Energy Consumption References Bento,Vehicle Usage and Energy Consumption UCI-ITS-WP-05-1 Thomason Vehicle Usage and Energy Consumption Thomas F. Golob

  8. Mining data on usage of electronic nicotine delivery systems (ENDS) from YouTube videos

    E-Print Network [OSTI]

    Talbot, Prue

    2013-01-01T23:59:59.000Z

    by group.bmj.com Research paper Mining data on usage of2013 - Published by group.bmj.com Mining data on usage of

  9. The impact of residential density on vehicle usage and fuel consumption

    E-Print Network [OSTI]

    Kim, Jinwon; Brownstone, David

    2010-01-01T23:59:59.000Z

    characteristics on household residential choice and auto2009. The impact of residential density on vehicle usage and2010-05) The impact of residential density on vehicle usage

  10. The Impact of Residential Density on Vehicle Usage and Energy Consumption

    E-Print Network [OSTI]

    Golob, Thomas F.; Brownstone, David

    2005-01-01T23:59:59.000Z

    Vehicle Usage and Energy Consumption Table 2 Housing Unitsresidential vehicular energy consumption is graphed as aon Vehicle Usage and Energy Consumption with vehicles, but

  11. VEHICLE USAGE LOG Department ________________________________________ Vehicle Homebase ____________________________ Week Ended (Sunday) _________________

    E-Print Network [OSTI]

    Yang, Zong-Liang

    VEHICLE USAGE LOG Department ________________________________________ Vehicle Homebase ____________________________ Week Ended (Sunday) _________________ Door #____________ License Plate ____________________ Vehicle/Supplies (Enter Description such as grade sheets, artifacts, money, etc.) 6. Taking vehicle to Automotive Shop

  12. Mthodes et outils pour l'observation et l'analyse des usages tudier les usages pdagogiques

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    l'éducation, Min. de l'éducation : yves.laborey@education.gouv.fr, Sommaire PNER #12;2 Table des...................................................................................... 5 1. Les enjeux des études d'usages des TICs en éducation et en formation

  13. Usage Mining for the World Wide Web WenChen Hu, wenchen@cs.und.edu

    E-Print Network [OSTI]

    Hu, Wen-Chen

    Usage Mining for the World Wide Web Wen­Chen Hu, wenchen@cs.und.edu Department of Computer Science@mail.tku.edu.tw Department of Information Engineering, Tamkang University, Tamsui, Taiwan ABSTRACT Web usage mining is used an overview and analysis of current Web usage mining technologies and systems. A Web usage mining system

  14. A Framework for Personal Web Usage Mining Yongjian Fu Ming-Yi Shih

    E-Print Network [OSTI]

    Fu, Yongjian

    A Framework for Personal Web Usage Mining Yongjian Fu Ming-Yi Shih Department of Computer Science-0350 Rolla, MO 65409-0350 yongjian@umr.edu mingyi@umr.edu Abstract In this paper, we propose to mine Web usage data on client side, or personal Web usage mining, as a complement to the server side Web usage

  15. A Framework for Personal Web Usage Mining Yongjian Fu MingYi Shih

    E-Print Network [OSTI]

    Fu, Yongjian

    A Framework for Personal Web Usage Mining Yongjian Fu Ming­Yi Shih Department of Computer Science­0350 Rolla, MO 65409­0350 yongjian@umr.edu mingyi@umr.edu Abstract In this paper, we propose to mine Web usage data on client side, or personal Web usage mining, as a complement to the server side Web usage

  16. 2011 Radioactive Materials Usage Survey for Unmonitored Point Sources

    SciTech Connect (OSTI)

    Sturgeon, Richard W. [Los Alamos National Laboratory

    2012-06-27T23:59:59.000Z

    This report provides the results of the 2011 Radioactive Materials Usage Survey for Unmonitored Point Sources (RMUS), which was updated by the Environmental Protection (ENV) Division's Environmental Stewardship (ES) at Los Alamos National Laboratory (LANL). ES classifies LANL emission sources into one of four Tiers, based on the potential effective dose equivalent (PEDE) calculated for each point source. Detailed descriptions of these tiers are provided in Section 3. The usage survey is conducted annually; in odd-numbered years the survey addresses all monitored and unmonitored point sources and in even-numbered years it addresses all Tier III and various selected other sources. This graded approach was designed to ensure that the appropriate emphasis is placed on point sources that have higher potential emissions to the environment. For calendar year (CY) 2011, ES has divided the usage survey into two distinct reports, one covering the monitored point sources (to be completed later this year) and this report covering all unmonitored point sources. This usage survey includes the following release points: (1) all unmonitored sources identified in the 2010 usage survey, (2) any new release points identified through the new project review (NPR) process, and (3) other release points as designated by the Rad-NESHAP Team Leader. Data for all unmonitored point sources at LANL is stored in the survey files at ES. LANL uses this survey data to help demonstrate compliance with Clean Air Act radioactive air emissions regulations (40 CFR 61, Subpart H). The remainder of this introduction provides a brief description of the information contained in each section. Section 2 of this report describes the methods that were employed for gathering usage survey data and for calculating usage, emissions, and dose for these point sources. It also references the appropriate ES procedures for further information. Section 3 describes the RMUS and explains how the survey results are organized. The RMUS Interview Form with the attached RMUS Process Form(s) provides the radioactive materials survey data by technical area (TA) and building number. The survey data for each release point includes information such as: exhaust stack identification number, room number, radioactive material source type (i.e., potential source or future potential source of air emissions), radionuclide, usage (in curies) and usage basis, physical state (gas, liquid, particulate, solid, or custom), release fraction (from Appendix D to 40 CFR 61, Subpart H), and process descriptions. In addition, the interview form also calculates emissions (in curies), lists mrem/Ci factors, calculates PEDEs, and states the location of the critical receptor for that release point. [The critical receptor is the maximum exposed off-site member of the public, specific to each individual facility.] Each of these data fields is described in this section. The Tier classification of release points, which was first introduced with the 1999 usage survey, is also described in detail in this section. Section 4 includes a brief discussion of the dose estimate methodology, and includes a discussion of several release points of particular interest in the CY 2011 usage survey report. It also includes a table of the calculated PEDEs for each release point at its critical receptor. Section 5 describes ES's approach to Quality Assurance (QA) for the usage survey. Satisfactory completion of the survey requires that team members responsible for Rad-NESHAP (National Emissions Standard for Hazardous Air Pollutants) compliance accurately collect and process several types of information, including radioactive materials usage data, process information, and supporting information. They must also perform and document the QA reviews outlined in Section 5.2.6 (Process Verification and Peer Review) of ES-RN, 'Quality Assurance Project Plan for the Rad-NESHAP Compliance Project' to verify that all information is complete and correct.

  17. Trends in Commercial Buildings--Buildings and Floorspace

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40 Buildingto17 34 44Year Jan Feb Mar Apr May Jun602 1,397 125 Q 69 0.11 0.09634636

  18. Table B15. Number of Establishments in Building, Floorspace, 1999

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are nowTotal" (Percent) Type: Sulfur Content API GravityDakota" "Fuel, quality", 2013,Iowa"Dakota" ,"FullWestQuantity of2". Summary5. Number

  19. Level: National Data; Row: NAICS Codes; Column: Floorspace and Buildings;

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for On-Highway4,1,50022,3,,,,6,1,9,1,50022,3,,,,6,1,Decade EnergyTennesseeYear Jan FebFoot)(Millionper22,445.5.479.1 Enclosed

  20. Commercial Building Tenant Energy Usage Aggregation and Privacy

    SciTech Connect (OSTI)

    Livingston, Olga V.; Pulsipher, Trenton C.; Anderson, David M.; Wang, Na

    2014-10-31T23:59:59.000Z

    A growing number of building owners are benchmarking their building energy use. This requires the building owner to acquire monthly whole-building energy usage information, which can be challenging for buildings in which individual tenants have their own utility meters and accounts with the utility. Some utilities and utility regulators have turned to aggregation of customer energy use data (CEUD) as a way to give building owners whole-building energy usage data while protecting customer privacy. Meter profile aggregation adds a layer of protection that decreases the risk of revealing CEUD as the number of meters aggregated increases. The report statistically characterizes the similarity between individual energy usage patterns and whole-building totals at various levels of meter aggregation.

  1. Mining Software Usage with the Automatic Library Tracking Database (ALTD)

    SciTech Connect (OSTI)

    Hadri, Bilel [ORNL; Fahey, Mark R [ORNL

    2013-01-01T23:59:59.000Z

    Tracking software usage is important for HPC centers, computer vendors, code developers and funding agencies to provide more efficient and targeted software support, and to forecast needs and guide HPC software effort towards the Exascale era. However, accurately tracking software usage on HPC systems has been a challenging task. In this paper, we present a tool called Automatic Library Tracking Database (ALTD) that has been developed and put in production on several Cray systems. The ALTD infrastructure prototype automatically and transparently stores information about libraries linked into an application at compilation time and also the executables launched in a batch job. We will illustrate the usage of libraries, compilers and third party software applications on a system managed by the National Institute for Computational Sciences.

  2. BEETIT: Building Cooling and Air Conditioning

    SciTech Connect (OSTI)

    None

    2010-09-01T23:59:59.000Z

    BEETIT Project: The 14 projects that comprise ARPA-E’s 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.

  3. Alternative Refrigerants for Building Air Conditioning 

    E-Print Network [OSTI]

    Bivens, D. B.

    1996-01-01T23:59:59.000Z

    , and HFC-245ca. HCFC-22 is also scheduled for phase-out, and three alternatives for HCFC-22 have been identified: HFC-134a, a near-azeotropic mixture of R32/Rl25, and a zeotropic mixture of R32/R125/R134a. Performance test results, future potential energy...

  4. Central Air Conditioning | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube platformBuilding RemovalCSS LetterStateDepartmentAnnounce Results ofCentral Air

  5. Air-Conditioning Basics | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you sure you want toworldPower 2010 1A Potential PathAddingAhorreLeaks

  6. Heating, Ventilation and Air Conditioning Efficiency

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaefer To:Department of Energy CompletingPresented By: WALTER E. JOHNSTON, PE

  7. Heating, Ventilation and Air Conditioning Efficiency

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking of Blythe Solar Power ProjectHawai'iPresented By: WALTER E. JOHNSTON, PE

  8. Improving Home Automation by Discovering Regularly Occurring Device Usage Patterns

    E-Print Network [OSTI]

    Cook, Diane J.

    Improving Home Automation by Discovering Regularly Occurring Device Usage Patterns Edwin O in an environment can be mined to discover significant patterns, which an intelligent agent could use to automate of two prediction algorithms, thus demonstrating multiple uses for a home automation system. Finally, we

  9. Personality and Patterns of Facebook Usage Yoram Bachrach

    E-Print Network [OSTI]

    Rajamani, Sriram K.

    Personality and Patterns of Facebook Usage Yoram Bachrach Microsoft Research yobach.ac.uk ABSTRACT We show how users' activity on Facebook relates to their per- sonality, as measured by the standard Five Factor Model. Our dataset consists of the personality profiles and Facebook pro- file data

  10. Statler College Research Data Center Access and Usage Policy

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    Statler College Research Data Center Access and Usage Policy Objective Access to the Statler under WVU and federal guidelines. Scope This policy applies to all Statler staff, faculty, administrators, officers, contractors and students. Policy Access to the RDC shall be limited to those authorized

  11. Towards activity-relevant attribution of IT energy usage

    E-Print Network [OSTI]

    Chaudhuri, Surajit

    Towards activity-relevant attribution of IT energy usage From a previous study we were able to disaggregate per socket energy consumption from whole domicile energy consumption. We discovered that Home preparation/storage, it is the largest contributor to personal energy consumption. Understanding how and when

  12. Who Is Buying PEVS in California? Exploring Household and Usage

    E-Print Network [OSTI]

    California at Davis, University of

    Additional vehicle "Vehicle Change" Replaced Will Replace Additional vehicle #12;8/3/2012 8 Hybrid Ownership (Hybrid) General pop have Hybrid Vehicle Usage and Charging #12;8/3/2012 9 Driver Characteristics ·Average 4 5 6 7 8 9 10 11 12 Sample M h #12;8/3/2012 2 Respondents Locations 3 Nissan LEAFs Vehicle

  13. A Web Usage Mining Framework for Web Directories Personalization

    E-Print Network [OSTI]

    Kouroupetroglou, Georgios

    A Web Usage Mining Framework for Web Directories Personalization Dimitrios Pierrakos Department framework that combines Web personalization and Web directories, which results in the concept of Community Web Directories. Community Web directories is a novel form of personalization performed on Web

  14. Personalizing Web Directories with the Aid of Web Usage Data

    E-Print Network [OSTI]

    Paliouras, George

    Personalizing Web Directories with the Aid of Web Usage Data Dimitrios Pierrakos, Member, IEEE of Community Web Directories, a concept that we introduced in our recent work, applying personalization to Web directories. In this context, the Web directory is viewed as a thematic hierarchy and personalization

  15. Energy Usage Attitudes of Urban India IBM Research India

    E-Print Network [OSTI]

    Toronto, University of

    Energy Usage Attitudes of Urban India Mohit Jain IBM Research India mohitjain@in.ibm.com Deepika@cs.cmu.edu Amarjeet Singh IIIT Delhi, India amarjeet@iiitd.ac.in Abstract-- Though rapid increase in energy factors affecting energy consumption in urban India. However, the small numbers of participants in those

  16. Fuel bundle design for enhanced usage of plutonium fuel

    DOE Patents [OSTI]

    Reese, Anthony P. (San Jose, CA); Stachowski, Russell E. (Fremont, CA)

    1995-01-01T23:59:59.000Z

    A nuclear fuel bundle includes a square array of fuel rods each having a concentration of enriched uranium and plutonium. Each rod of an interior array of the rods also has a concentration of gadolinium. The interior array of rods is surrounded by an exterior array of rods void of gadolinium. By this design, usage of plutonium in the nuclear reactor is enhanced.

  17. Dynamic Memory Usage Optimization using ILP and J. Ramanujam2

    E-Print Network [OSTI]

    Ramanujam, J. "Ram"

    computing field such as electronic structure calculations, and in several other contexts. We are considering sizes M like those arising in scientific computing such as electronic structure calculations [1, 2, 3Dynamic Memory Usage Optimization using ILP A. Allam1 and J. Ramanujam2 1 Electrical Engineering

  18. Transportation & Work: Exploring Car Usage and Employment Outcomes

    E-Print Network [OSTI]

    Bertini, Robert L.

    Transportation & Work: Exploring Car Usage and Employment Outcomes in the LSAL Data Field Area of 1996, or "welfare reform," attention turned to the role of transportation in job search and employment information on car ownership as well as employment history, literacy proficiency, and measures of social

  19. Exploiting Memory Usage Patterns to Improve Garbage Collections in Java

    E-Print Network [OSTI]

    Lau, Francis C.M.

    Exploiting Memory Usage Patterns to Improve Garbage Collections in Java Liangliang Tong Department Science The University of Hong Kong fcmlau@cs.hku.hk Abstract Copying-based garbage collectors It is a common belief, however, that ob- jects' survival rates are generally too low to make full use

  20. Accountable Anonymous Service Usage in Mobile Communication Systems \\Lambda

    E-Print Network [OSTI]

    Bencsáth, Boldizsár

    to one particular physical location. From a technology perspective, mobile communication systems haveAccountable Anonymous Service Usage in Mobile Communication Systems \\Lambda Levente Butty of Technology CH­1015 Lausanne, Switzerland fLevente.Buttyan, Jean­Pierre.Hubauxg@epfl.ch 23rd June 1999

  1. An Analysis of Anonymity Technology Usage Bingdong Li1

    E-Print Network [OSTI]

    Gunes, Mehmet Hadi

    criminals to hide themselves. In this paper, we provide usage and geo-location analysis of major- linkability, i.e., observers can not link an agent to a specific message or action. Equally contributing a dichotomous issue in both social life and cy- ber space. Anonymity technologies have been used for criminal

  2. FILE USAGE RECOMMENDATIONS OCTOBER 31, 2013 | PAGE: 1 AVAILABLE LOGOS

    E-Print Network [OSTI]

    Aronov, Boris

    FILE USAGE RECOMMENDATIONS OCTOBER 31, 2013 | PAGE: 1 AVAILABLE LOGOS EPS JPG PNG LONG LOGO_long_white.png STACKED LOGO engineering_stacked_color.eps engineering_stacked_color.jpg engineering O R - Recommended File Type O - Optional File Type Which file to use Logo formats are available

  3. Personalized Power Saving Profiles Generation Analyzing Smart Device Usage Patterns

    E-Print Network [OSTI]

    Gesbert, David

    Personalized Power Saving Profiles Generation Analyzing Smart Device Usage Patterns Soumya Kanti interactions of smart devices. This paper describes a client-server architecture that proposes personalized and they are sent back to the smart devices. These profiles are highly personalized since they are developed

  4. Proposal for the award of a contract for the design, supply, installation and commissioning of a ventilation and air conditioning system for the ECN3 experimental area and the TCC8 and GHN300 service tunnels and for the dismantling of the existing system

    E-Print Network [OSTI]

    2014-01-01T23:59:59.000Z

    Proposal for the award of a contract for the design, supply, installation and commissioning of a ventilation and air conditioning system for the ECN3 experimental area and the TCC8 and GHN300 service tunnels and for the dismantling of the existing system

  5. Jefferson Lab's Education web site hits new high-usage record...

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

    web site hits new high-usage record during 2003 SOL season April 2, 2003 Jefferson Lab's Science Education web site is hitting new highs in usage - on a daily basis. Just yesterday...

  6. Jefferson Lab's Education Web Site Hits New High-Usage Record...

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

    Web Site Hits New High-Usage Record April 22, 2002 Jefferson Lab's Science Education web site hit a new high in usage yesterday. In a 24-hour-period nearly 125,000 pages were...

  7. Towards sustainable material usage : time-dependent evaluation of upgrading technologies for recycling

    E-Print Network [OSTI]

    Gaustad, Gabrielle G

    2009-01-01T23:59:59.000Z

    As consumption in the US grows, so does concern about sustainable materials usage. Increasing recycling is a key component within a broad arsenal of strategies for moving towards sustainable materials usage. There are many ...

  8. Energy Department Announces $4.5 Million to Expand Usage of Alternativ...

    Energy Savers [EERE]

    4.5 Million to Expand Usage of Alternative Fuels Energy Department Announces 4.5 Million to Expand Usage of Alternative Fuels July 16, 2014 - 11:00am Addthis In support of...

  9. "Table HC10.5 Space Heating Usage Indicators by U.S. Census...

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

    5 Space Heating Usage Indicators by U.S. Census Region, 2005" " Million U.S. Housing Units" ,"Housing Units (millions)","U.S. Census Region" "Space Heating Usage...

  10. Residential insecticide usage in northern California homes with young XIANGMEI (MAY) WUa

    E-Print Network [OSTI]

    Leistikow, Bruce N.

    Residential insecticide usage in northern California homes with young children XIANGMEI (MAY) WUa of Health and Environment, Seoul National University, Seoul, South Korea Residential insecticide usage and August 2008. Structured telephone interviews were conducted collecting information on residential use

  11. The relationship between children's computer game usage and creativity in Korea 

    E-Print Network [OSTI]

    Lee, Kyung-Sook

    2009-05-15T23:59:59.000Z

    Economic Status) affected children?s creativity scores and computer game usage. Children using computer games heavily showed significantly higher scores on the scale of Figural Originality than those with moderate usage. Highly structured activity students...

  12. Creation of Chimera Through the Usage of an Inspirational System

    E-Print Network [OSTI]

    Parish, Brandi Nicole

    2013-04-23T23:59:59.000Z

    CREATION OF CHIMERA THROUGH THE USAGE OF AN INSPIRATIONAL SYSTEM A Thesis by BRANDI NICOLE PARISH Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE Approved by: Chair of Committee, Carol LaFayette Committee Members, Frederic Parke Kevin Glowacki Head of Department, Tim McLaughlin May 2013 Major Subject: Visualization Copyright 2013 Brandi Nicole Parish ii...

  13. Fuel bundle design for enhanced usage of plutonium fuel

    DOE Patents [OSTI]

    Reese, A.P.; Stachowski, R.E.

    1995-08-08T23:59:59.000Z

    A nuclear fuel bundle includes a square array of fuel rods each having a concentration of enriched uranium and plutonium. Each rod of an interior array of the rods also has a concentration of gadolinium. The interior array of rods is surrounded by an exterior array of rods void of gadolinium. By this design, usage of plutonium in the nuclear reactor is enhanced. 10 figs.

  14. Residential Lighting Usage Estimate Tool, v1.0

    Broader source: Energy.gov [DOE]

    By improving our understanding of residential lighting-energy usage and quantifying it across many different parameters, the new study will be of use to anyone doing energy estimates – such as utilities, market and investment analysts, and government agencies. It will also help manufacturers design products that not only better serve consumers' needs, but that maximize the energy savings that technologies like SSL make possible.

  15. SUPPORT VECTOR CLUSTERING FOR WEB USAGE MINING WEI SHUNG CHUNG

    E-Print Network [OSTI]

    Gruenwald, Le

    is to present a comparison study of SVC and K- means for Web usage data mining using real-life Web logs. (http://www.hippocrates.ouhsc.edu) We chose K-means for comparison because it is a widely used algorithm for clustering. (Shahabi et al. Section 2 describes SVC and K-means. Section 3 and 4 present the comparison studies and experimental

  16. Central Puget Sound freeway network usage and performance. Research report

    SciTech Connect (OSTI)

    Ishimaru, J.M.; Hallenbeck, M.E.

    1999-03-01T23:59:59.000Z

    The summary report presents an overview of the level of traveler usage (e.g., how many vehicles use the freeways) and travel performance (e.g., how fast they are traveling, where and how often congestion occurs) on the principal urban freeways in the central Puget Sound area for 1997. Data presented in this report were collected by the Washington State Department of Transportation`s (WDSOT`s) freeway surveillance system.

  17. Proper Usage of Drugs and Chemicals in Food Animals

    E-Print Network [OSTI]

    Faries Jr., Floron C.

    2002-02-15T23:59:59.000Z

    Federal regulations exist to ensure the proper distribution and usage of veterinary drugs and to prevent adulteration of the food supply with illegal drug residues through drug misuse in food produc- ing animals. The Food and Drug Administration... of omission or commission, violative residues in livestock and poultry (by irresponsible and illegal distribution and use of drugs) violates state and federal laws. When FSIS inspectors detect violative drug residues in food products derived from ani- mals...

  18. Adopted Version 1 Georgia Tech's "BuzzPort" Portal Usage Policy

    E-Print Network [OSTI]

    Li, Mo

    Adopted Version 1 Georgia Tech's "BuzzPort" Portal Usage Policy v. 7.1 1.0 PURPOSE This Policy are highly valued and sensitive Institute resources. This Policy establishes an acceptable usage framework.0 SCOPE This Policy applies to all authorized BuzzPort usage from any location at all times

  19. Session Lengths and IP Address Usage of Smartphones in a University Campus WiFi

    E-Print Network [OSTI]

    Wang, Bing

    to laptops and desktop PCs, network usage characteristics of smartphones may differ significantly becauseSession Lengths and IP Address Usage of Smartphones in a University Campus WiFi Network be used more opportunistically. In this paper, we study two important network usage characteristics

  20. Results of Comparing Bandwidth Usage and Latency: Service Location Protocol and Jini

    E-Print Network [OSTI]

    Barbeau, Michel

    Results of Comparing Bandwidth Usage and Latency: Service Location Protocol and Jini Javier Govea. This paper focuses on analyzing and evaluating two of these limitations, bandwidth usage and latency, of two present the results of our bandwidth usage analysis and the results a comparison of latency of SLP

  1. Red Storm usage model :Version 1.12.

    SciTech Connect (OSTI)

    Jefferson, Karen L.; Sturtevant, Judith E.

    2005-12-01T23:59:59.000Z

    Red Storm is an Advanced Simulation and Computing (ASC) funded massively parallel supercomputer located at Sandia National Laboratories (SNL). The Red Storm Usage Model (RSUM) documents the capabilities and the environment provided for the FY05 Tri-Lab Level II Limited Availability Red Storm User Environment Milestone and the FY05 SNL Level II Limited Availability Red Storm Platform Milestone. This document describes specific capabilities, tools, and procedures to support both local and remote users. The model is focused on the needs of the ASC user working in the secure computing environments at Los Alamos National Laboratory (LANL), Lawrence Livermore National Laboratory (LLNL), and SNL. Additionally, the Red Storm Usage Model maps the provided capabilities to the Tri-Lab ASC Computing Environment (ACE) requirements. The ACE requirements reflect the high performance computing requirements for the ASC community and have been updated in FY05 to reflect the community's needs. For each section of the RSUM, Appendix I maps the ACE requirements to the Limited Availability User Environment capabilities and includes a description of ACE requirements met and those requirements that are not met in that particular section. The Red Storm Usage Model, along with the ACE mappings, has been issued and vetted throughout the Tri-Lab community.

  2. A PRACTICAL ONTOLOGY FOR THE LARGE-SCALE MODELING OF SCHOLARLY ARTIFACTS AND THEIR USAGE

    SciTech Connect (OSTI)

    RODRIGUEZ, MARKO A. [Los Alamos National Laboratory; BOLLEN, JOHAN [Los Alamos National Laboratory; VAN DE SOMPEL, HERBERT [Los Alamos National Laboratory

    2007-01-30T23:59:59.000Z

    The large-scale analysis of scholarly artifact usage is constrained primarily by current practices in usage data archiving, privacy issues concerned with the dissemination of usage data, and the lack of a practical ontology for modeling the usage domain. As a remedy to the third constraint, this article presents a scholarly ontology that was engineered to represent those classes for which large-scale bibliographic and usage data exists, supports usage research, and whose instantiation is scalable to the order of 50 million articles along with their associated artifacts (e.g. authors and journals) and an accompanying 1 billion usage events. The real world instantiation of the presented abstract ontology is a semantic network model of the scholarly community which lends the scholarly process to statistical analysis and computational support. They present the ontology, discuss its instantiation, and provide some example inference rules for calculating various scholarly artifact metrics.

  3. Use of nanofiltration to reduce cooling tower water usage.

    SciTech Connect (OSTI)

    Sanchez, Andres L.; Everett, Randy L.; Jensen, Richard Pearson; Cappelle, Malynda A.; Altman, Susan Jeanne

    2010-09-01T23:59:59.000Z

    Nanofiltration (NF) can effectively treat cooling-tower water to reduce water consumption and maximize water usage efficiency of thermoelectric power plants. A pilot is being run to verify theoretical calculations. A side stream of water from a 900 gpm cooling tower is being treated by NF with the permeate returning to the cooling tower and the concentrate being discharged. The membrane efficiency is as high as over 50%. Salt rejection ranges from 77-97% with higher rejection for divalent ions. The pilot has demonstrated a reduction of makeup water of almost 20% and a reduction of discharge of over 50%.

  4. The methods of steam coals usage for coke production

    SciTech Connect (OSTI)

    Korobetskii, I.A.; Ismagilov, M.S.; Nazimov, S.A.; Sladkova, I.L.; Shudrikov, E.S.

    1998-07-01T23:59:59.000Z

    Nowadays, high volatile bituminous coals are broadly used for metallurgical coke production in Russia. The share of such coals in the coking blend is variable from 20 to 40% by weight. There are some large coal deposits in Kuznetskii basin which have coals with low caking tendency. The low caking properties of such coals limit of its application in the coking process. At the same time the usage of low caking coals for coke production would allow flexibility of the feedstock for coke production. Preliminary tests, carried out in COAL-C's lab has shown some differences in coal properties with dependence on the size distribution. That is why the separation of the well-caking fraction from petrographically heterogeneous coals and its further usage in coking process may be promising. Another way for low caking coals application in the coke industry is briquettes production from such coals. This method has been known for a very long time. It may be divided into two possible directions. First is a direct coking of briquettes from the low caking coals. Another way is by adding briquettes to coal blends in defined proportion and combined coking. The possibility of application of coal beneficiation methods mentioned above was investigated in present work.

  5. Usage based indicators to assess the impact of scholarly works: architecture and method

    DOE Patents [OSTI]

    Bollen, Johan (Santa Fe, NM); Van De Sompel, Herbert (Santa Fe, NM)

    2012-03-13T23:59:59.000Z

    Although recording of usage data is common in scholarly information services, its exploitation for the creation of value-added services remains limited due to concerns regarding, among others, user privacy, data validity, and the lack of accepted standards for the representation, sharing and aggregation of usage data. A technical, standards-based architecture for sharing usage information is presented. In this architecture, OpenURL-compliant linking servers aggregate usage information of a specific user community as it navigates the distributed information environment that it has access to. This usage information is made OAI-PMH harvestable so that usage information exposed by many linking servers can be aggregated to facilitate the creation of value-added services with a reach beyond that of a single community or a single information service.

  6. additional county-level usage: Topics by E-print Network

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

    Libraries (CUL). While Rosen, Jay 363 Mining Usage Data and Development Artifacts Olga Baysal, Reid Holmes, and Michael W. Godfrey Computer Technologies and Information...

  7. Availability, usage and expected contribution of potential nursery habitats for the California halibut

    E-Print Network [OSTI]

    Fodrie, Fredrick Joel; Mendoza, Guillermo F.

    2006-01-01T23:59:59.000Z

    of a damsel?sh re?ect availability of suitable habitat.locate/ecss Availability, usage and expected contribution ofthe spatial coverage (availability) of all potential nursery

  8. A Decision-Based Analysis of Compressed Air Usage Patterns in Automotive Manufacturing

    E-Print Network [OSTI]

    Yuan, Chris; Zhang, Teresa; Rangarajan, Arvind; Dornfeld, David; Ziemba, Bill; Whitbeck, Rod

    2006-01-01T23:59:59.000Z

    Air Usage Patterns in Automotive Manufacturing Chris Y. Yuanper vehicle built from automotive manufacturing facilities,2004). Compressed Air in Automotive Manufacturing Compressed

  9. Scholarly E-Book Use across Disciplines: Content Analysis of Usage Reports and Search Terms

    E-Print Network [OSTI]

    Rosen, Jay

    community. In response to this demand, Columbia University Libraries (CUL) #12;2 | B a k k a l b a s i & G o the aggregate results indicate that e-book use continues to increase, usage rates are not uniform across the aggregate results indicate that e-book use continues to increase, usage rates are not uniform across

  10. A Model-Based Approach to Synthesizing Insulin Infusion Pump Usage Parameters for Diabetic Patients

    E-Print Network [OSTI]

    Sankaranarayanan, Sriram

    A Model-Based Approach to Synthesizing Insulin Infusion Pump Usage Parameters for Diabetic Patients Fainekos Abstract-- We present a model-based approach to synthesiz- ing insulin infusion pump usage parameters against varying meal scenarios and physiological conditions. Insulin infusion pumps are commonly

  11. A taxonomy of virtual worlds usage in education Ishbel Duncan, Alan Miller and Shangyi Jiang

    E-Print Network [OSTI]

    St Andrews, University of

    1 A taxonomy of virtual worlds usage in education Ishbel Duncan, Alan Miller and Shangyi Jiang from around the world. A taxonomy is then derived from these articles, delineating current theoretical and practical work on Virtual World usage, specifically in the field of education. The taxonomy identifies rich

  12. Characterizing Geospatial Dynamics of Application Usage in a 3G Cellular Data Network

    E-Print Network [OSTI]

    Fisher, Kathleen

    Characterizing Geospatial Dynamics of Application Usage in a 3G Cellular Data Network M. Zubair provided the evidence that significant geospatial correla- tions, in terms of traffic volume and application access, exist in cellular network usage. Such geospatial correlation patterns provide local

  13. The User Side of Sustainability: Modeling Behavior and Energy Usage in the Home

    E-Print Network [OSTI]

    Cook, Diane J.

    The User Side of Sustainability: Modeling Behavior and Energy Usage in the Home Chao Chena, , Diane in everyday home environments to examine the relationship between behavioral patterns and energy consumption;technologies that examine energy usage in homes and to encourage energy effi- cient behaviors, in addition

  14. Clustering Educational Digital Library Usage Data: A Comparison of Latent Class Analysis and

    E-Print Network [OSTI]

    Qi, Xiaojun

    Clustering Educational Digital Library Usage Data: A Comparison of Latent Class Analysis and K-Means Analysis is superior to K-means on all three comparisons. In particular, LCA is more immune to the variance, the widely used K-means and the model-based Latent Class Analysis, are compared, using usage data from

  15. Web Usage Mining as a Tool for Personalization: a survey D. Pierrakos+

    E-Print Network [OSTI]

    Paliouras, George

    1 Web Usage Mining as a Tool for Personalization: a survey D. Pierrakos+ , G. Paliouras+ , C GREECE Abstract: This paper is a survey of recent work in the field of Web Usage Mining for the benefit of research on the personalization of Web-based information services. The essence of personalization

  16. A GeneralizationBased Approach to Clustering of Web Usage Sessions

    E-Print Network [OSTI]

    Fu, Yongjian

    A Generalization­Based Approach to Clustering of Web Usage Sessions Yongjian Fu, Kanwalpreet Sandhu,ksandhu,mingyig@umr.edu Abstract. The clustering of Web usage sessions based on the access patterns is studied. Access patterns of Web users are extracted from Web server log files, and then organized into sessions which represent

  17. Water usage dropping on campus, but UT hopes to lower it more

    E-Print Network [OSTI]

    Johnston, Daniel

    Water usage dropping on campus, but UT hopes to lower it more Photo Credit: Zachary Strain | Daily six years, UT has worked to decrease its water usage, but the University still has a ways to go if it the University was using one billion gallons of water per year. Across buildings, irrigation, chilling stations

  18. The Comparison of Usage and Availability Measurements for Evaluating Resource Douglas H. Johnson

    E-Print Network [OSTI]

    Steury, Todd D.

    The Comparison of Usage and Availability Measurements for Evaluating Resource Preference Douglas H and Conditions of Use, available at http://www.jstor.org/about/terms.html. JSTOR's Terms and Conditions of Use~etyof Amenca THE COMPARISON OF USAGE AND AVAILABILITY MEASUREMENTS FOR EVALUATING RESOURCE PREFERENCE1

  19. Modeling the Performance and the Energy Usage of Wireless Sensor Networks by Retrial Queueing Systems

    E-Print Network [OSTI]

    Sztrik, János

    Modeling the Performance and the Energy Usage of Wireless Sensor Networks by Retrial Queueing and the energy usage of the sensor network. Two operations are compared. In the first case only the event driven requests can initiate reaching the radio trans- mission (RF) unit. Time driven requests have to wait

  20. Usage Patterns of the Java Standard API Homan Ma, Robert Amor, Ewan Tempero

    E-Print Network [OSTI]

    Amor, Robert

    Usage Patterns of the Java Standard API Homan Ma, Robert Amor, Ewan Tempero Department of Computer,ewan}@cs.auckland.ac.nz Abstract The Java Standard API has grown enormously since Java's be- ginnings, now consisting of over 3 to help determine the "typical" usage of the Standard API. We find that, in an extensive corpus of open

  1. Usage Management in Cloud Computing Pramod A. Jamkhedkar, Christopher C. Lamb, Gregory L. Heileman

    E-Print Network [OSTI]

    Heileman, Gregory L.

    Usage Management in Cloud Computing Pramod A. Jamkhedkar, Christopher C. Lamb, Gregory L. Heileman will gain increasing importance as cloud computing becomes more pervasive. Existing service level agreement. This paper introduces the notion and importance of usage management in cloud computing. It provides

  2. A Look At Steam Usage in William's Athletic Facilities Patrick Morrissey

    E-Print Network [OSTI]

    Aalberts, Daniel P.

    A Look At Steam Usage in William's Athletic Facilities Patrick Morrissey Geosciences 206 Final Project Professor Dethier May 18, 2010 #12;Introduction: This paper will examine steam usage trends that Towne FH and Lansing Chapman both draw their steam from an enclosed loop heating system.23

  3. Description of 2003 CBECS Detailed Tables and Categories of Data

    Gasoline and Diesel Fuel Update (EIA)

    floorspace heated, cooled, and lit, and energy-using equipment types (heating, cooling, water heating, lighting, and refrigeration). Tables C1-C12 and C1A-C12A contain energy usage...

  4. Figure 1. HomeWindow showing the energy usage of several monitors, displays, and computers with colored

    E-Print Network [OSTI]

    Greenberg, Saul

    Figure 1. HomeWindow showing the energy usage of several monitors, displays, and computers with colored auras. Red is high usage while green is low usage. HomeWindow: An Augmented Reality Domestic that reflects its current and historical energy use. Categories and Subject Descriptors H.5.2 [Information

  5. Woodfuel Usage Update 1 I Wood fuel use in Scotland 2011 I Hudson Consulting I September 2011

    E-Print Network [OSTI]

    energy sectors of the Scottish market) to 30 December 2010. The information gained from the study is usedWoodfuel Usage Update 1 I Wood fuel use in Scotland 2011 I Hudson Consulting I September 2011 Woodfuel Demand and Usage in Scotland Report 2011 #12;Woodfuel Usage Update 2 I Wood fuel use in Scotland

  6. HOSPITAL ENERGY AUDITS: A BIBLIOGRAPHY

    E-Print Network [OSTI]

    Pollack, R. I.

    2011-01-01T23:59:59.000Z

    associated with heating, ventilation, and air conditioninglighting, heating, ventilation and air conditioning. theenergy usage. Heating, ventilation, and cooling systems

  7. Battery Usage and Thermal Performance of the Toyota Prius and Honda Insight for Various Chassis Dynamometer Test Procedures: Preprint

    SciTech Connect (OSTI)

    Kelly, K. J.; Mihalic, M.; Zolot, M.

    2001-11-20T23:59:59.000Z

    This study describes the results from the National Renewable Energy Laboratory's (NREL) chassis dynamometer testing of a 2000 model year Honda Insight and 2001 model year Toyota Prius. The tests were conducted for the purpose of evaluating the battery thermal performance, assessing the impact of air conditioning on fuel economy and emissions, and providing information for NREL's Advanced Vehicle Simulator (ADVISOR).

  8. HIV Co-receptor Usage in HIV-related Non-Hodgkin's Lymphoma

    E-Print Network [OSTI]

    Reid, Erin; Morris, Sheldon R

    2012-01-01T23:59:59.000Z

    receptor usage, CCR5 CXCR4, SDF-1 Introduction Highly activewith SNP analysis for the SDF 1-3’A polymorphism (Appliedsamples were testing for the SDF polymorphism and four were

  9. PERSPECTIVES AND USAGE OF TECHNOLOGY OF ARABIC LANGUAGE TEACHERS IN THE UNITED ARAB EMIRATES

    E-Print Network [OSTI]

    ALhumaid, Khadija Farhan

    2014-05-31T23:59:59.000Z

    Abstract This study examined the perspectives and usage of technology by Arabic language teachers' in various schools all across The United Arab Emirates. Barriers to integrating technology were closely examined. Dimensions investigated included...

  10. "Table HC8.5 Space Heating Usage Indicators by Urban/Rural Location...

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

    5 Space Heating Usage Indicators by UrbanRural Location, 2005" " Million U.S. Housing Units" ,,"UrbanRural Location (as Self-Reported)" ,"Housing Units (millions)" "Space Heating...

  11. "Table HC9.5 Space Heating Usage Indicators by Climate Zone...

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

    5 Space Heating Usage Indicators by Climate Zone, 2005" " Million U.S. Housing Units" ,,"Climate Zone1" ,,"Less than 2,000 CDD and --",,,,"2,000 CDD or More and Less than 4,000...

  12. "Table HC4.5 Space Heating Usage Indicators by Renter-Occupied...

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

    5 Space Heating Usage Indicators by Renter-Occupied Housing Unit, 2005" " Million U.S. Housing Units" ,," Renter-Occupied Housing Units (millions)","Type of Renter-Occupied Housing...

  13. "Table HC3.5 Space Heating Usage Indicators by Owner-Occupied...

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

    5 Space Heating Usage Indicators by Owner-Occupied Housing Unit, 2005" " Million U.S. Housing Units" ,," Owner-Occupied Housing Units (millions)","Type of Owner-Occupied Housing...

  14. Commercial Building Tenant Energy Usage Data Aggregation and Privacy: Technical Appendix

    SciTech Connect (OSTI)

    Livingston, Olga V.; Pulsipher, Trenton C.; Anderson, David M.

    2014-11-12T23:59:59.000Z

    This technical appendix accompanies report PNNL–23786 “Commercial Building Tenant Energy Usage Data Aggregation and Privacy”. The objective is to provide background information on the methods utilized in the statistical analysis of the aggregation thresholds.

  15. "Table HC9.10 Home Appliances Usage Indicators by Climate Zone...

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

    0 Home Appliances Usage Indicators by Climate Zone, 2005" " Million U.S. Housing Units" ,,"Climate Zone1" ,,"Less than 2,000 CDD and --",,,,"2,000 CDD or More and Less than 4,000...

  16. "Table HC15.13 Lighting Usage Indicators by Four Most Populated...

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

    Units (millions)","Four Most Populated States" "Lighting Usage Indicators",,"New York","Florida","Texas","California" "Total U.S. Housing Units",111.1,7.1,7,8,12.1 "Indoor...

  17. RECS Fuel Oil Usage Form_v1 (Draft).xps

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

    fuel oil usage for this delivery address between September 2008 and April 2010. Delivery Number Enter the Delivery Date for each delivery 1 2 3 4 5 6 7 8 9 10 Enter the Total...

  18. Improvements to building energy usage modeling during early design stages and retrofits

    E-Print Network [OSTI]

    Mandelbaum, Andrew (Andrew Joseph)

    2014-01-01T23:59:59.000Z

    A variety of improvements to the MIT Design Advisor, a whole-building energy usage modeling tool intended for use during early design stages, are investigated. These include changes to the thermal mass temperature distribution ...

  19. Heavy-duty truck population, activity and usage patterns. Final report

    SciTech Connect (OSTI)

    Fischer, M.

    1998-07-01T23:59:59.000Z

    The objective of the study was to update the heavy-duty truck (HDT) population, activity (e.g., vehicle miles traveled (VMT), numbers of starts and trips, trip duration, etc.), and usage patterns type of service/business (e.g., delivery, construction, etc.), area of operation (i.e., local, short-haul, long-haul) for HDT`s registered and/or operated in California. The population and activity estimates were done on a weight-class-specific basis light-heavy-duty, medium-heavy-duty and heavy-heavy-duty. Population, activity and usage estimates were based primarily on Department of Motor Vehicles (DMV) registration data and Truck Inventory and Usage Survey (TIUS) data. In addition to the analysis of existing data (i.e., DMV and TIUS), 42 HDTs were fitted with on-board data loggers that recorded numbers of trips and starts, daily VMT and travel by time-of-day.

  20. Integration of Photovoltaics into Building Energy Usage through Advanced Control of Rooftop Unit

    SciTech Connect (OSTI)

    Starke, Michael R [ORNL] [ORNL; Nutaro, James J [ORNL] [ORNL; Irminger, Philip [ORNL] [ORNL; Ollis, Benjamin [University of Tennessee, Knoxville (UTK)] [University of Tennessee, Knoxville (UTK); Kuruganti, Phani Teja [ORNL] [ORNL; Fugate, David L [ORNL] [ORNL

    2014-01-01T23:59:59.000Z

    This paper presents a computational approach to forecast photovoltaic (PV) power in kW based on a neural network linkage of publicly available cloud cover data and on-site solar irradiance sensor data. We also describe a control approach to utilize rooftop air conditioning units (RTUs) to support renewable integration. The PV forecasting method is validated using data from a rooftop PV panel installed on the Distributed Energy, Communications, and Controls (DECC) laboratory at Oak Ridge National Laboratory. The validation occurs in multiple phases to ensure that each component of the approach is the best representation of the actual expected output. The control of the RTU is based on model predictive methods.

  1. A study of the validity of language usage as an indicator of ethnic identification 

    E-Print Network [OSTI]

    Patella, Victoria Morrow

    1971-01-01T23:59:59.000Z

    for Index by Sex Analysis of Variance With Respect to Index of Language Usage Mean Index by Sex, Place of Residence, and Border/Non-Border Residence Results of Anova and Mean Index of Language Usage of Mexican American Males and Females With Respect... by Sex: Total Column Indicates What Percent of all R's had Each Index, and Sex Columns Indicate for Each Index, What the Sex Ratio was 7J 1 1 li 21 L Frequency Distribution for Index by Border/ Non-Border Residence Table Page( 22 Percentage...

  2. Direct Expansion Air Conditioning System Selection for Hot & Humid Climates

    E-Print Network [OSTI]

    Browning, B. K.

    2002-01-01T23:59:59.000Z

    Capacity at Part-Load Conditions In 1996, Henderson and Rengarajan4 published a method for modeling the latent capacity degradation of DX equipment with constant blower operation. This latent degradation model provided critical information need... to match the moisture removal capacity of the selected system to the moisture load. However, the model required an iterative solution and knowledge of equipment parameters that were not readily available during design. In 1998, Henderson published a...

  3. air conditioning system: Topics by E-print Network

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

    may be eliminated. Physical principals governing airflow in fan systems predict available energy savings from using premium air filters. This energy savings may offset the...

  4. air conditioning systems: Topics by E-print Network

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

    may be eliminated. Physical principals governing airflow in fan systems predict available energy savings from using premium air filters. This energy savings may offset the...

  5. Simulation- Assisted Audit of an Air Conditioned Office Building

    E-Print Network [OSTI]

    Bertagnolio, S.; Lebrun, J.; Hannay, J.; Silva, C. A.

    , an equation-based building-HVAC simulation tool is used to assist the audit. Fuel and electricity consumption are then interpreted and significant energy saving opportunities are identified....

  6. K-7109Agnew Hall M-2204Air Conditioning Plant

    E-Print Network [OSTI]

    Buehrer, R. Michael

    Building] K-4171Burchard Hall L-4176Burruss Hall L-637Campbell Hall - East Wing L-636Campbell Hall - Main Center at Donaldson Brown L-9124Greenhouse Q-10 241Grounds Building (Central Stores) J-4 158Hahn Hall

  7. Direct Digital Control in Air Conditioning Systems for Energy Efficiency

    E-Print Network [OSTI]

    Liu, W.; Ye, A.; Li, D.

    2006-01-01T23:59:59.000Z

    With the rapid development of Intelligent Buildings (IB), the Building Automation System (BAS) has come to control and manage the equipment in the building more and more scientifically, economically and rationally, which can not only raise...

  8. air conditioning engineers: Topics by E-print Network

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

    was performed to investigate the effects of air-fuel ratio, inlet boost pressure, hydrogen rich fuel reformate, and compression ratio on engine knock behavior. For each...

  9. air conditioning engineering: Topics by E-print Network

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

    was performed to investigate the effects of air-fuel ratio, inlet boost pressure, hydrogen rich fuel reformate, and compression ratio on engine knock behavior. For each...

  10. air conditioning: Topics by E-print Network

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

    of California eScholarship Repository Summary: chamber, passive sampling, passive solar house, measurementhouse, we planed the distribution of fresh air, passivepassive...

  11. air conditioning deactivation: Topics by E-print Network

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

    of California eScholarship Repository Summary: chamber, passive sampling, passive solar house, measurementhouse, we planed the distribution of fresh air, passivepassive...

  12. Desiccants: Benefits for the Second Century of Air-Conditioning

    E-Print Network [OSTI]

    McGahey, K.; Harriman, L.

    1996-01-01T23:59:59.000Z

    Desiccant technology now stands where mechanical cooling stood in the 1930's. Desiccant systems have been used by industrial engineers to achieve productivity and energy benefits which far outweigh their installed cost. Now, with lower cost...

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

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

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

  14. air conditioning plants: Topics by E-print Network

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

    - TxSpace Summary: The primarysecondary piping systems are often employed in large chiller plant Systems. Normally, the primary flow becomes more than secondary flow, and...

  15. air conditioning applications: Topics by E-print Network

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

    chillers use the most environmentally friendly refrigerant - water... the Absorption. chiller. If a million Btulshr of hot water can be used from the heat of the engine, at...

  16. air conditioning fuel: Topics by E-print Network

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

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440 2. Adsorption versus absorptionAssessment of adsorber bed designs in waste-heat driven...

  17. air conditioning plant: Topics by E-print Network

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

    - TxSpace Summary: The primarysecondary piping systems are often employed in large chiller plant Systems. Normally, the primary flow becomes more than secondary flow, and...

  18. RHEOLOGICAL STUDY OF AN HYDRATE SLURRY FOR AIR CONDITIONNING APPLICATION

    E-Print Network [OSTI]

    Boyer, Edmond

    [-] INTRODUCTION In the context of the classical refrigerants phase out, phase change materials (PCM) arouse great interests. Indeed, for very low temperature application such as refrigeration, ice-slurries are spread as secondary refrigerants. Concerning hydrates, they have been used as PCM for cold storage for years

  19. Energy Conservation of Air Conditioning Systems in Large Public Buildings

    E-Print Network [OSTI]

    Liu, P.; Li, D.

    2006-01-01T23:59:59.000Z

    cold seasons, the closed middle air layer absorbs the solar energy, and becomes the buffer layer of space between the inside and outside because of the glasshouse effect. In this case, the indoor heat loss can be reduced. While during the hot... and natural climatic microenvironment for the people indoor. Considering the energy conservation and the ecological environmental protection, this system not only satisfies the aesthetic need of the architecture, but also is the need of developing...

  20. Alternative Air Conditioning Technologies: Underfloor Air Distribution (UFAD)

    E-Print Network [OSTI]

    Webster, Tom

    2004-01-01T23:59:59.000Z

    trends in today’s office environment make it increasingly more difficult for conventional centralized HVAC

  1. Direct Digital Control in Air Conditioning Systems for Energy Efficiency 

    E-Print Network [OSTI]

    Liu, W.; Ye, A.; Li, D.

    2006-01-01T23:59:59.000Z

    connected by lines that represent the data flow. The process is depicted with symbols as on electrical schematics and pneumatic control diagrams. Graphical diagrams are created and the detailed data is entered in background menus or screens... and control system Energy management and control system (EMCS) technology has evolved over the past three decades from pneumatic and mechanical devices to direct digital controls (DDC) or computer-based controllers and systems. Today's EMCS systems...

  2. Energy Conservation of Air Conditioning Systems in Large Public Buildings 

    E-Print Network [OSTI]

    Liu, P.; Li, D.

    2006-01-01T23:59:59.000Z

    chart and the pipeline performance chart. Don?t choose the oversize flux and the oversize delivery lift pumps. If the oversize model of the pumps is chosen, most of the valves in the outlet conduit will be semi-open, which can increase...

  3. air conditioning hvac: Topics by E-print Network

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

    humidity and other environmental parameters for the occupants as well as to save energy. Achieving these objectives requires a suitable control system design. Approach: In...

  4. air conditioning heat: Topics by E-print Network

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

    solar air collector PV-panel fannon-return valve DHW tank mantle cold waterhot water roof Solar Energy Centre Denmark Danish Technological Institute SEC-R-29 12;Solar air heating...

  5. air conditioning devices: Topics by E-print Network

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

    air temperatures... conditions. The design of this study was based on the relation- ship of four parameters: air temperature, air velocity, radiant heat, and globe...

  6. air conditioning conference: Topics by E-print Network

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

    air temperatures... conditions. The design of this study was based on the relation- ship of four parameters: air temperature, air velocity, radiant heat, and globe...

  7. air conditioning problemas: Topics by E-print Network

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

    air temperatures... conditions. The design of this study was based on the relation- ship of four parameters: air temperature, air velocity, radiant heat, and globe...

  8. air conditioning maintenance: Topics by E-print Network

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

    the transient evolution of the free surface surrounding the impact region of a low-viscosity laminar liquid jet as it enters a quiescent pool. The close-up images depict the...

  9. Control of Computer Room Air Conditioning using IT Equipment Sensors

    E-Print Network [OSTI]

    Bell, Geoffrey C.

    2010-01-01T23:59:59.000Z

    to control the cooling system in the data center, energyfor input to the data center cooling system devices. Goal 2:for input to the data center cooling system devices. See

  10. Commissioning and Diagnosis of VAV Air-Conditioning Systems

    E-Print Network [OSTI]

    Qin, J.; Wang, S.; Chan, C.; Xiao, F.

    2006-01-01T23:59:59.000Z

    This paper presents a fault detection and diagnosis (FDD) strategy based on system knowledge, qualitative states and object-oriented statistical process control (SPC) models for typical pressure-independent variable air volume (VAV) air...

  11. Control of Computer Room Air Conditioning using IT Equipment Sensors

    E-Print Network [OSTI]

    Bell, Geoffrey C.

    2010-01-01T23:59:59.000Z

    graphics that allowed facility operators to choose which server temperature data points were used for control.graphics that allowed facility operators to choose which server temperature data points were used for control.

  12. Retrofitting Air Conditioning and Duct Systems in Hot, Dry Climates

    SciTech Connect (OSTI)

    Shapiro, C.; Aldrich, R.; Arena, L.

    2012-07-01T23:59:59.000Z

    This technical report describes CARB's work with Clark County Community Resources Division in Las Vegas, Nevada, to optimize procedures for upgrading cooling systems on existing homes in the area to implement health, safety, and energy improvements. Detailed monitoring of five AC systems showed that three of the five systems met or exceeded air flow rate goals.

  13. Importance of Design Conditions for Sizing Air-Conditioning Plant

    E-Print Network [OSTI]

    Shaban, N.; Maheshwari, G. P.; Suri, R. K.

    2000-01-01T23:59:59.000Z

    Design conditions based on the meteorological data collected at two weather stations located less than 10 km away from each other within Kuwait City are presented for dry-bulb temperature (DBT) and web-bulb temperature (WBT) prioritization...

  14. automotive air conditioning: Topics by E-print Network

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

    with Ttic5ms, Tcycle40ms. lic scheduling on automotive Navet, Nicolas 365 2001-01-0308 FMEA-based Design for Remanufacture using Automotive- Engineering Websites Summary: . The...

  15. Smart School Symposium Heating Ventilation and Air Conditioning Session

    E-Print Network [OSTI]

    California at Davis, University of

    · The presentation will cover the following topic; Typical school Building Load Profiles Typically HVAC Equipment that we can understand the load profiles as well as all the operating characteristics · For this, ASHRAE and secondary) · Schools have a unique building load profile · They are different than other buildings like

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

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently20,000 RussianBy: Thomas P. D'Agostino,GlenLearning andDesign inImage of13-Energy

  17. Keeping Cool Without Air Conditioning | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetter Report: I11IG002RTC3WASTE-TO-ENERGY: WASTEKeeping Cool

  18. Weatherking Heating & Air conditioning | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown ofNationwideWTED Jump to:Ohio: Energy ResourcesWeatherford, Texas:

  19. Heating Ventilation and Air Conditioning Efficiency | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaefer To:Department of Energy Completing

  20. HEATING, AIR-CONDITIONING AND REFRIGERATION DISTRIBUTORS INTERNATIONAL

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic2 OPAM Flash2011-12 OPAMGeneralGuiding Documents and Links GuidingTank(HARDI) |

  1. Air Conditioning Heating and Refrigeration Institute Comment | Department

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you0 ARRA Newsletters 20103-03Energy AdvancedJudge | Departmentof Energy

  2. Air Conditioning Heating and Refrigeration Institute Comment | Department

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011AT&T, Inc.'s Reply Comments AT&T,FACT S HEET FACTAgenda: TheAof Energy Air

  3. Air-Conditioning, Heating, and Refrigeration Institute (AHRI) Regulatory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently20,000 RussianBy:Whether you're a16-17, 201529,Vulnerabilities |AgreementBurden RFI |

  4. Air-Conditioning, Heating, and Refrigeration Institute Ex Parte Memo |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently20,000 RussianBy:Whether you're a16-17, 201529,Vulnerabilities |AgreementBurden RFI

  5. Heating Ventilation and Air Conditioning Efficiency | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122Commercial602 1,39732on Armed Services U.S.Health, Safety, &ofHeating

  6. Saving Money During the Air Conditioning Season | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreakingMay 2015 <Department ofDepartment| Department ofSaving Energy

  7. Fetz Plumbing, Heating & Air Conditioning | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof Energy 2,AUDIT REPORTEnergyFarms A S Jump to: navigation,FAFCOCommitteeFenpower

  8. Quantum Well Thermoelectric Truck Air Conditioning | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin of ContaminationHubs+18, 2012 Qualified Energy ConservationDepartmentQuantum Dot

  9. ON THE USAGE OF ANTENNAS IN MIMO AND MISO INTERFERENCE CHANNELS Mariam Kaynia

    E-Print Network [OSTI]

    Gesbert, David

    ON THE USAGE OF ANTENNAS IN MIMO AND MISO INTERFERENCE CHANNELS Mariam Kaynia , Andrea J. Goldsmith case of a MISO chan- nel is considered, where exact expressions for the ergodic capac- ity of the capacity of a MISO broadcast channel with a random beamformer is derived. However, the impact

  10. Optimal Power Procurement and Demand Response with Quality-of-Usage Guarantees

    E-Print Network [OSTI]

    Huang, Longbo

    1 Optimal Power Procurement and Demand Response with Quality-of-Usage Guarantees Longbo Huang, Jean the utility company to jointly perform power procurement and demand response so as to maximize the social are the inte- gration of renewable energy technologies [1] and the design of efficient user demand-response

  11. Semantic Analysis of Web Site Audience by Integrating Web Usage Mining and Web

    E-Print Network [OSTI]

    Libre de Bruxelles, Université

    Semantic Analysis of Web Site Audience by Integrating Web Usage Mining and Web Content Mining Jean://www.jrc.it/langtech Abstract. With the emergence of the World Wide Web, analyzing and improving Web communication has become essential to adapt the Web content to the visitors' expectations. Web communication analysis

  12. The TFRC protocol and its usage for wireless video transmission Christos Bouras1,2

    E-Print Network [OSTI]

    Bouras, Christos

    ) protocol in the area of efficient wireless video transmission and its possible usage in cross-layer power-layer approaches for adaptation of the power transmission level of the sender and TFRC feedback information, and therefore user experience, without unnecessary power consumption. INTRODUCTION Networking complexity has led

  13. ATTRIBUTE MUTABILITY IN USAGE CONTROL Jaehong Park, Xinwen Zhang, and Ravi Sandhu

    E-Print Network [OSTI]

    Sandhu, Ravi

    modern access control systems. Al- though the UCON study has been inspired largely from digital rights only by administrative actions. However, in modern information systems these attributes are often and modern access control policies. 1. Introduction The notion of usage control has been introduced recently

  14. Navy Leadership Disturbed by "Spice" Usage Rise Navy leaders are expressing alarm at recent statistics that

    E-Print Network [OSTI]

    Navy Leadership Disturbed by "Spice" Usage Rise Navy leaders are expressing alarm at recent, mimicking the chemical compounds found in the drug. These products are banned for Navy personnel (NAVADMIN) 108/10 in March 2010, which reemphasized the Navy's drug policy, the U.S. Navy has been

  15. REGULATION POLITIQUE ET REGULATION D'USAGE DANS LE TEMPS DE TRAVAIL1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 REGULATION POLITIQUE ET REGULATION D'USAGE DANS LE TEMPS DE TRAVAIL1 : par G. de Terssac, J REGULATION AND REGULATION OF USE OVER WORKING TIME In this paper we discuss « social regulations » as defined by Reynaud (1999). These regulations, in our case (working)-time regulations, are multiple. Their combination

  16. Instructions for CEC-1250E-4 Biomass and Fossil Fuel Usage Report for Biomass Facilities

    E-Print Network [OSTI]

    Instructions for CEC-1250E-4 Biomass and Fossil Fuel Usage Report for Biomass Facilities Biomass energy input basis in the upcoming calendar year? - Please check "yes" or "no." 12. Types of Biomass Fuel Used - Please report the quantity and supplier of the following types of biomass fuel used

  17. The Portable Extensible Toolkit for Scientific computing Day 1: Usage and Algorithms

    E-Print Network [OSTI]

    The Portable Extensible Toolkit for Scientific computing Day 1: Usage and Algorithms Jed Brown CSCS runs performantly on a laptop · No iPhone support Jed Brown (ETH Zürich) PETSc day 1 CSCS 2010-05-10 5) · Same code runs performantly on a laptop · No iPhone support Jed Brown (ETH Zürich) PETSc day 1 CSCS

  18. Somniloquy: Augmenting Network Interfaces to Reduce PC Energy Usage Yuvraj Agarwal

    E-Print Network [OSTI]

    Zhou, Yuanyuan

    Somniloquy: Augmenting Network Interfaces to Reduce PC Energy Usage Yuvraj Agarwal , Steve Hodges@cs.ucsd.edu Abstract Reducing the energy consumption of PCs is becoming in- creasingly important with rising energy costs and environmen- tal concerns. Sleep states such as S3 (suspend to RAM) save energy, but are often

  19. Lifestyle studies Market demand Usage patterns Funding: Calif. Energy Commission, BMW, Calif. ARB, ECOtality

    E-Print Network [OSTI]

    California at Davis, University of

    as much energy as it consumes. When done in 2014, the 130-acre UC Davis West Village will be home to 3Consumers Lifestyle studies · Market demand · Usage patterns Funding: Calif. Energy Commission, BMW operation · Energy savings Funding: Chrysler, US Dept of Energy Lead researcher: Kevin Nesbitt, Ph

  20. Mining Usage Data and Development Artifacts Olga Baysal, Reid Holmes, and Michael W. Godfrey

    E-Print Network [OSTI]

    Godfrey, Michael W.

    Mining Usage Data and Development Artifacts Olga Baysal, Reid Holmes, and Michael W. Godfrey Software Architecture Group (SWAG) David R. Cheriton School of Computer Science, University of Waterloo {obaysal, rtholmes, migod}@uwaterloo.ca Abstract--Software repository mining techniques generally focus

  1. UDP: Usage-based Dynamic Pricing with Privacy Preservation for Smart Grid

    E-Print Network [OSTI]

    Shen, Xuemin "Sherman"

    overhead, we introduce distributed community gateways as proxies of the utility company to timely respond are managed adaptively to meet the electricity generation and distribution capabilities at any time be optimally utilized in real time. In this paper, we propose a usage-based dynamic pricing (UDP) scheme

  2. Impact of Liquefied Natural Gas usage and payload size on Hybrid Wing Body aircraft fuel efficiency

    E-Print Network [OSTI]

    Mody, Pritesh (Pritesh Chetan)

    2010-01-01T23:59:59.000Z

    This work assessed Hybrid Wing Body (HWB) aircraft in the context of Liquefied Natural Gas (LNG) fuel usage and payload/range scalability at three scales: H1 (B737), H2 (B787) and H3 (B777). The aircraft were optimized for ...

  3. ADAPTIVE WEB SITES BY WEB USAGE MINING Yongjian Fu Mario Creado MingYi Shih

    E-Print Network [OSTI]

    Fu, Yongjian

    ADAPTIVE WEB SITES BY WEB USAGE MINING Yongjian Fu Mario Creado Ming­Yi Shih Department of Computer An approach for reorganizing a Web site based on user access patterns is proposed. The Web server's log files and the Web pages on the site are first preprocessed to obtain the access statistics of the Web pages

  4. Mobile Application and Device Power Usage Measurements1,2 Rahul Murmuria, Jeffrey Medsger, Angelos Stavrou

    E-Print Network [OSTI]

    Stavrou, Angelos

    by the operating system's power-management module. We present the models capability to further calculate the powerMobile Application and Device Power Usage Measurements1,2 Rahul Murmuria, Jeffrey Medsger, Angelos Gaithersburg, MD 20899 Email:jeff.voas@nist.gov Abstract--Reducing power consumption has become a cru- cial

  5. A Large-scale Study on Predicting and Contextualizing Building Energy Usage J. Zico Kolter

    E-Print Network [OSTI]

    Kolter, J. Zico

    fuels (Multiple 2009). In the United States, 41% of all energy is consumed in residential and commercial people with feedback about their energy use can itself produce behavior changes that significantly reduce the value of normative energy feedback, showing users how their usage relates to that of their peers

  6. Improving API Documentation Using API Usage Information Jeffrey Stylos, Andrew Faulring, Zizhuang Yang, Brad A. Myers

    E-Print Network [OSTI]

    Matsuda, Noboru

    than with standard Javadoc. 1. Introduction An Application Programming Interface (API) is the userImproving API Documentation Using API Usage Information Jeffrey Stylos, Andrew Faulring, Zizhuang://www.cs.cmu.edu/~jadeite Abstract Jadeite is a new Javadoc-like API documentation system that takes advantage of multiple users

  7. A Graph-based Approach to API Usage Adaptation Hoan Anh Nguyen,1a

    E-Print Network [OSTI]

    Kim, Miryung

    to accommodate new feature requests, to fix bugs, and to meet new standards, changes in API declarationsA Graph-based Approach to API Usage Adaptation Hoan Anh Nguyen,1a Tung Thanh Nguyen,1b Gary Wilson standards, the clients of software libraries often need to make correspond- ing changes to correctly use

  8. The OffPAD: Requirements and Usage Kent Are Varmedal1

    E-Print Network [OSTI]

    Boyer, Edmond

    The OffPAD: Requirements and Usage Kent Are Varmedal1 , Henning Klevjer1 , Joakim Hovlandsv°ag1 by descriptions of different applications that can be implemented with contemporary technology. Finally platform". This certainly provides great flexibility and support for many new business models, but it also

  9. Supporting Mobile Service Usage through Physical Mobile Interaction Gregor Broll1

    E-Print Network [OSTI]

    Service technology and Physical Mobile Interaction. This interaction paradigm uses mobile devicesSupporting Mobile Service Usage through Physical Mobile Interaction Gregor Broll1 , Sven Siorpaes1 albrecht.schmidt@ifi.lmu.de Abstract Although mobile services can be used ubiquitously, their employment

  10. Promiscuous Usage of Nucleotides by the DNA Helicase of Bacteriophage T7

    E-Print Network [OSTI]

    Richardson, Charles C.

    Promiscuous Usage of Nucleotides by the DNA Helicase of Bacteriophage T7 DETERMINANTS OF NUCLEOTIDE activity. Very little is known regarding the architecture of the nucleotide binding site in determining nucleotide specificity. Crystal structures of the T7 helicase domain with bound dATP or dTTP identified Arg

  11. Logo Standards In this guide, you will find usage standards for the

    E-Print Network [OSTI]

    Kasman, Alex

    Logo Standards #12;In this guide, you will find usage standards for the new College of Charleston logo system. This guide is provided as a supplement to the College of Charleston Brand Manual, which at http://marcomm.cofc.edu. The new logo, which combines the existing College of Charleston wordmark

  12. L'usage d'un micro-monde pour apprendre la programmation en LOGO

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    L'usage d'un micro-monde pour apprendre la programmation en LOGO Marios Xenos1 , Zacharoula difficultés, en utilisant le langage LOGO pour programmer le comportement d'objets dans un contexte de permet aux élèves de changer le code en LOGO pour modifier les éléments graphiques et affecter le

  13. Optimisation of Fuel Usage and Steam Availability in the Power and Steam

    E-Print Network [OSTI]

    Cambridge, University of

    the medium pressure manifold (nominally operated at 14 bar), through a steam turbine that can be usedOptimisation of Fuel Usage and Steam Availability in the Power and Steam Plant of a Paper Mill KEYWORDS: Model Predictive Control, Improved Efficiency, Optimisation, Power and Steam Supply System

  14. Date | 1Refrigeration and Air Conditioning EMA Education and Training Date | 2Refrigeration and Air Conditioning EMA Education and Training

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    Automatic Controls Evaporator Load Superheat MSS Curve MSS curve depends on Load Evaporator Temperature Air, stable superheat over full capacity range ensures best COP under all conditions MSS Curve Superheat Curve

  15. 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.

    2011-01-01T23:59:59.000Z

    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.

  16. Woodfuel Usage Update 1 I Wood fuel use in Scotland 2012 I Hudson Consulting I November 2012

    E-Print Network [OSTI]

    furnish of 150k odt/yr in 2012. 9. Including wood going for the production of pellets, usage of wood in progress 3.3. Wood fuel usage by fuel category 3.4. Pellet plants 3.5. Greenhouse gas emissions 4 to 1.073 million odt in 2014. 8. Four wood pellet manufacturing plants in Scotland used in total some

  17. Identifying Software Usage at HPC Centers with the Automatic Library Tracking Database

    SciTech Connect (OSTI)

    Hadri, Bilel [ORNL; Fahey, Mark R [ORNL; Jones, Nicholas A [ORNL

    2010-01-01T23:59:59.000Z

    A library tracking database has been developed to monitor software/library usage. This Automatic Library Tracking Database (ALTD) automatically and transparently stores, into a database, information about the libraries linked into an application at compilation time and also the executables launched in a batch job. Information gathered into the database can then be mined to provide reports. Analyzing the results from the data collected will help to identify, for example, the most frequently used and the least used libraries and codes, and those users that are using deprecated libraries or applications. We will illustrate the usage of libraries and executables on the Cray XT platforms hosted at the National Institute for Computational Sciences and the Oak Ridge Leadership Computing Facility (both located at Oak Ridge National Laboratory).

  18. Table HC1.1.2 Housing Unit Characteristics by Average Floorspace, 2005

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1Stocks Nov-14Total DeliveredPrincipal shale gas:14:9a. Housing Unit12

  19. Table HC1.1.4 Housing Unit Characteristics by Average Floorspace--Apartments, 2

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1Stocks Nov-14Total DeliveredPrincipal shale gas:14:9a. Housing

  20. Table HC1.2.2 Living Space Characteristics by Average Floorspace

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1Stocks Nov-14Total DeliveredPrincipal shale gas:14:9a. Housing1.2

  1. Table HC1.2.4 Living Space Characteristics by Average Floorspace--Apartments, 2

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1Stocks Nov-14Total DeliveredPrincipal shale gas:14:9a. Housing1.22.4

  2. Table B1. Summary Table: Totals and Means of Floorspace, Number of Workers, and

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are nowTotal" (Percent) Type: Sulfur Content API GravityDakota" "Fuel, quality", 2013,Iowa"Dakota" ,"FullWestQuantity of2". Summary Table:

  3. Table B16. Multibuilding Facilities, Number of Buildings and Floorspace, 1999

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are nowTotal" (Percent) Type: Sulfur Content API GravityDakota" "Fuel, quality", 2013,Iowa"Dakota" ,"FullWestQuantity of2". Summary5.

  4. Table B19. Energy End Uses, Number of Buildings and Floorspace, 1999

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are nowTotal" (Percent) Type: Sulfur Content API GravityDakota" "Fuel, quality", 2013,Iowa"Dakota" ,"FullWestQuantity of2". Summary5.9.

  5. Table B2. Summary Table: Totals and Medians of Floorspace, Number of Workers,

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are nowTotal" (Percent) Type: Sulfur Content API GravityDakota" "Fuel, quality", 2013,Iowa"Dakota" ,"FullWestQuantity of2". Summary5.9..

  6. Table B24. Cooling Energy Sources, Number of Buildings and Floorspace, 1999

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are nowTotal" (Percent) Type: Sulfur Content API GravityDakota" "Fuel, quality", 2013,Iowa"Dakota" ,"FullWestQuantity of2". Summary5.9..4.

  7. Table B27. Cooking Energy Sources, Number of Buildings and Floorspace, 1999

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are nowTotal" (Percent) Type: Sulfur Content API GravityDakota" "Fuel, quality", 2013,Iowa"Dakota" ,"FullWestQuantity of2". Summary5.9..4.7.

  8. Table B3. Census Region, Number of Buildings and Floorspace, 1999

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are nowTotal" (Percent) Type: Sulfur Content API GravityDakota" "Fuel, quality", 2013,Iowa"Dakota" ,"FullWestQuantity of2".9. Percent of.

  9. Table B30. Percent of Floorspace Lit When Open, Number of Buildings and Floorspa

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are nowTotal" (Percent) Type: Sulfur Content API GravityDakota" "Fuel, quality", 2013,Iowa"Dakota" ,"FullWestQuantity of2".9. Percent of.0.

  10. Table B36. Refrigeration Equipment, Number of Buildings and Floorspace, 1999

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are nowTotal" (Percent) Type: Sulfur Content API GravityDakota" "Fuel, quality", 2013,Iowa"Dakota" ,"FullWestQuantity of2".9. Percent of.0.6.

  11. Table B37. Water Heating Equipment, Number of Buildings and Floorspace, 1999

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are nowTotal" (Percent) Type: Sulfur Content API GravityDakota" "Fuel, quality", 2013,Iowa"Dakota" ,"FullWestQuantity of2".9. Percent

  12. "Table B11. Employment Size Category, Floorspace, 1999"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1Stocksa. AppliancesTotal"1" "Shell Storage Capacity1.

  13. "Table B16. Employment Size Category, Floorspace for Non-Mall Buildings, 2003"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1Stocksa. AppliancesTotal"1" "Shell Storage

  14. "Table B21. Space-Heating Energy Sources, Floorspace, 1999"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1Stocksa. AppliancesTotal"1" "Shell Storage1.

  15. "Table B23. Primary Space-Heating Energy Sources, Floorspace, 1999"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1Stocksa. AppliancesTotal"1" "Shell Storage1.2.

  16. "Table B25. Energy End Uses, Floorspace for Non-Mall Buildings, 2003"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1Stocksa. AppliancesTotal"1" "Shell Storage1.2.5.

  17. "Table B26. Water-Heating Energy Sources, Floorspace, 1999"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1Stocksa. AppliancesTotal"1" "Shell Storage1.2.5.6.

  18. "Table HC1.1.3 Housing Unit Characteristics by Average Floorspace--"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4 Space Heating8TotalTotal Energya.b.3

  19. "Table HC1.2.3 Living Space Characteristics by Average Floorspace--"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4 Space Heating8TotalTotal Energya.b.33

  20. Usage Demographics

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengthening aTurbulence mayUndergraduateAbout Us Updatesproject

  1. "Table HC4.10 Home Appliances Usage Indicators by Renter-Occupied Housing Unit, 2005"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department of Energygasoline4 Space2.9 Home7 Air-ConditioningHC3.90

  2. Examining the adoption, usage and outcomes of mobile money services: the case of M-PESA in Kenya 

    E-Print Network [OSTI]

    Morawczynski, Olga

    2011-07-04T23:59:59.000Z

    This thesis will examine the adoption, usage and outcomes of a mobile money service called MPESA. Since being launched in 2007, the service has seen phenomenal growth in Kenya. Over 7.5 million users, or 34% of the adult ...

  3. Guidelines for Energy Cost Savings Resulting from Tracking and Monitoring Electrical nad Natural Gas Usage, Cost, and Rates

    E-Print Network [OSTI]

    McClure, J. D.; Estes, M. C.; Estes, J. M.

    1989-01-01T23:59:59.000Z

    This paper discusses how improved energy information in schools and hospitals from tracking and monitoring electrical and natural gas usage, cost, and optional rate structures, can reduce energy costs. Recommendations, methods, and guidelines...

  4. Guidelines for Energy Cost Savings Resulting from Tracking and Monitoring Electrical nad Natural Gas Usage, Cost, and Rates 

    E-Print Network [OSTI]

    McClure, J. D.; Estes, M. C.; Estes, J. M.

    1989-01-01T23:59:59.000Z

    This paper discusses how improved energy information in schools and hospitals from tracking and monitoring electrical and natural gas usage, cost, and optional rate structures, can reduce energy costs. Recommendations, ...

  5. SME-Entrepreneurship Global Conference 2006 -Refereed Paper Bakke et al.: ICT diffusion and usage among Asian SMEs 1

    E-Print Network [OSTI]

    Sahay, Sundeep

    SME-Entrepreneurship Global Conference 2006 - Refereed Paper Bakke et al.: ICT diffusion and usage factors, infrastructures and post-adoption behaviour Paper for the conference: "SME ­ Entrepreneurship. Keywords: Diffusion models, infrastructure, domestication, small and medium sized enterprises, SME, ICT

  6. From Measurements to Sustainable Choices: Non-intrusive Fine-grained Sensing of Resource Usage in Buildings

    E-Print Network [OSTI]

    Jalali. Bahram

    From Measurements to Sustainable Choices: Non-intrusive Fine- grained Sensing of Resource Usage. Example pictures of non-intrusive pipe level water monitoring test-bed and non- intrusive appliance power

  7. An investigation of winter Texans' time usage in the Lower Rio Grande Valley

    E-Print Network [OSTI]

    Marshall, Keith Alan

    1991-01-01T23:59:59.000Z

    will increase. Operational Definitions The following definitions were used to guide this study: ~Win ~rT x ns - Retired persons who stay in the Lower Rio Grande Valley of Texas for at least one month during the Winter. consisting of four counties (Cameron...AN INVESTIGATION OF WINTER TEXANS' TIME USAGE IN THE LOWER RIO GRANDE VALLEY A Thesis by Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE...

  8. Label Building Natural Gas Usage Form 1999 Commercial Buildings Energy Consumption Survey (CBECS)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells, Wisconsin:DeploymentSite Name:24,High naturalProsperityNatural Gas Usage

  9. Optimal Power Procurement and Demand Response with Quality-of-Usage Guarantees

    E-Print Network [OSTI]

    Huang, Longbo; Ramchandran, Kannan

    2011-01-01T23:59:59.000Z

    In this paper, we propose a general operating scheme which allows the utility company to jointly perform power procurement and demand response so as to maximize the social welfare. Our model takes into consideration the effect of the renewable energy and the multi-stage feature of the power procurement process. It also enables the utility company to provide quality-of-usage (QoU) guarantee to the power consumers, which ensures that the average power usage level meets the target value for each user. To maximize the social welfare, we develop a low-complexity algorithm called the \\emph{welfare maximization algorithm} (WMA), which performs joint power procurement and dynamic pricing. WMA is constructed based on a two-timescale Lyapunov optimization technique. We prove that WMA achieves a close-to-optimal utility and ensures that the QoU requirement is met with bounded deficit. WMA can be implemented in a distributed manner and is robust with respect to system dynamics uncertainty.

  10. Usage of Electric Vehicle Supply Equipment Along the Corridors between the EV Project Major Cities

    SciTech Connect (OSTI)

    Mindy Kirkpatrick

    2012-05-01T23:59:59.000Z

    The report explains how the EVSE are being used along the corridors between the EV Project cities. The EV Project consists of a nationwide collaboration between Idaho National Laboratory (INL), ECOtality North America, Nissan, General Motors, and more than 40 other city, regional and state governments, and electric utilities. The purpose of the EV Project is to demonstrate the deployment and use of approximately 14,000 Level II (208-240V) electric vehicle supply equipment (EVSE) and 300 fast chargers in 16 major cities. This research investigates the usage of all currently installed EV Project commercial EVSE along major interstate corridors. ESRI ArcMap software products are utilized to create geographic EVSE data layers for analysis and visualization of commercial EVSE usage. This research locates the crucial interstate corridors lacking sufficient commercial EVSE and targets locations for future commercial EVSE placement. The results and methods introduced in this research will be used by INL for the duration of the EV Project.

  11. Assessment of groundwater usage at Chalk Point power plant. Final report

    SciTech Connect (OSTI)

    Not Available

    1982-07-01T23:59:59.000Z

    In order to quantify the usage of ground water in an operating electric power plant, a study was initiated in 1978 aimed at determining where in the energy conversion process ground water is used and to suggest, if possible, alternate means for providing this water and/or methods to reduce consumption. The Chalk Point Plant was selected for this study because of its difference in fuel source (coal and oil), and because of its high consumption of ground water (approximately 800,000 to 1,200,000 gallons per day). Located at the confluence of the Patuxent River and Swanson Creek in the southeast corner of Prince George's County, Maryland, it consists of three operating units, with a fourth unit under construction during the survey time. (unit 4 has recently become operational). With the cooperation of the Potomac Electric Power Company, the plant was selected for study and was instrumented with several flow meters. Over a two-year period, this plant has been monitored to provide the information needed to make an assessment of the rates, nature, and methods of water usage in an operating power plant.

  12. HPC Usage Behavior Analysis and Performance Estimation with Machine Learning Techniques

    SciTech Connect (OSTI)

    Zhang, Hao [ORNL; You, Haihang [ORNL; Hadri, Bilel [ORNL; Fahey, Mark R [ORNL

    2012-01-01T23:59:59.000Z

    Most researchers with little high performance computing (HPC) experience have difficulties productively using the supercomputing resources. To address this issue, we investigated usage behaviors of the world s fastest academic Kraken supercomputer, and built a knowledge-based recommendation system to improve user productivity. Six clustering techniques, along with three cluster validation measures, were implemented to investigate the underlying patterns of usage behaviors. Besides manually defining a category for very large job submissions, six behavior categories were identified, which cleanly separated the data intensive jobs and computational intensive jobs. Then, job statistics of each behavior category were used to develop a knowledge-based recommendation system that can provide users with instructions about choosing appropriate software packages, setting job parameter values, and estimating job queuing time and runtime. Experiments were conducted to evaluate the performance of the proposed recommendation system, which included 127 job submissions by users from different research fields. Great feedback indicated the usefulness of the provided information. The average runtime estimation accuracy of 64.2%, with 28.9% job termination rate, was achieved in the experiments, which almost doubled the average accuracy in the Kraken dataset.

  13. Spécification pour les stratifiés industriels rigides en planches à base de résines thermodurcissables à usage électriques partie 3: spécifications pour matériaux particuliers : feuille 7: prescriptions pour les stratifiés rigides en planches à base de résine polyimide

    E-Print Network [OSTI]

    Association Française de Normalisation. Paris

    1995-01-01T23:59:59.000Z

    Spécification pour les stratifiés industriels rigides en planches à base de résines thermodurcissables à usage électriques

  14. The effects of user mobility on usage parameter control (UPC) in wireless ATM systems

    SciTech Connect (OSTI)

    Sholander, P.; Martinez, L.; Tolendino, L. [Sandia National Labs., Albuquerque, NM (United States); Mah, B.A. [Sandia National Labs., Livermore, CA (United States)

    1997-07-01T23:59:59.000Z

    Wireless Asynchronous Transfer Mode (WATM) networks pose new traffic management problems. One example is the effect of user mobility on Usage Parameter Control (UPC). If the UPC algorithm resets after each handoff between wireless-cells, then users can cheat on their traffic contract. This paper derives explicit relationships between a user`s traffic parameters (Peak Cell Rate, Sustained Cell Rate and Maximum Burst Size), their transit time per wireless-cell, their maximum sustained cheating-rate and the Generic Cell Rate Algorithm`s (GCRA`s) Limit (L) parameter. It also shows that the GCRA can still effectively police Constant Bit Rate (CBR) traffic, but not some types of realistic Variable Bit Rate (VBR) traffic.

  15. Prolonged cold storage of red blood cells by oxygen removal and additive usage

    DOE Patents [OSTI]

    Bitensky, Mark W. (Boston, MA); Yoshida, Tatsuro (Newton, MA)

    1998-01-01T23:59:59.000Z

    Prolonged cold storage of red blood cells by oxygen removal and additive usage. A cost-effective, 4.degree. C. storage procedure that preserves red cell quality and prolongs post-transfusion in vivo survival is described. The improved in vivo survival and the preservation of adenosine triphosphate levels, along with reduction in hemolysis and membrane vesicle production of red blood cells stored at 4.degree. C. for prolonged periods of time, is achieved by reducing the oxygen level therein at the time of storage; in particular, by flushing the cells with an inert gas, and storing them in an aqueous solution which includes adenine, dextrose, mannitol, citrate ion, and dihydrogen phosphate ion, but no sodium chloride, in an oxygen-permeable container which is located in an oxygen-free environment containing oxygen-scavenging materials.

  16. Prolonged cold storage of red blood cells by oxygen removal and additive usage

    DOE Patents [OSTI]

    Bitensky, M.W.; Yoshida, Tatsuro

    1998-08-04T23:59:59.000Z

    Prolonged cold storage of red blood cells by oxygen removal and additive usage. A cost-effective, 4 C storage procedure that preserves red cell quality and prolongs post-transfusion in vivo survival is described. The improved in vivo survival and the preservation of adenosine triphosphate levels, along with reduction in hemolysis and membrane vesicle production of red blood cells stored at 4 C for prolonged periods of time, is achieved by reducing the oxygen level therein at the time of storage; in particular, by flushing the cells with an inert gas, and storing them in an aqueous solution which includes adenine, dextrose, mannitol, citrate ion, and dihydrogen phosphate ion, but no sodium chloride, in an oxygen-permeable container which is located in an oxygen-free environment containing oxygen-scavenging materials. 8 figs.

  17. Simulation of the Rungis Wholesale Market: lessons on the calibration, validation and usage of a Cognitive Agent-based Simulation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Simulation of the Rungis Wholesale Market: lessons on the calibration, validation and usage on a simulation of the Rungis Wholesale Market (in France) using cognitive agents. The implication of using of the system. Our case, the Fruits and Vegetables wholesale market of the Rungis Food Market, constitutes

  18. USAGE OF RADARS FOR WIND ENERGY APPICATIONS Determine the benefit of using radar observations for wind energy applications by

    E-Print Network [OSTI]

    USAGE OF RADARS FOR WIND ENERGY APPICATIONS TASK: Determine the benefit of using radar observations for wind energy applications by analyzing i) the resolution effects and ii) sensitivity effects of weather radar systems. MOTIVATION: Wind energy applications strongly focus high-resolution wind observations

  19. IDENTIFYING THE USAGE PATTERNS OF METHYL TERT-BUTYL ETHER (MTBE) AND OTHER OXYGENATES IN GASOLINE USING GASOLINE

    E-Print Network [OSTI]

    IDENTIFYING THE USAGE PATTERNS OF METHYL TERT-BUTYL ETHER (MTBE) AND OTHER OXYGENATES IN GASOLINE 1608 Mt. View Rapid City, SD 57702 Methyl tert-butyl ether (MTBE) is commonly added to gasoline. In 1998, 11.9 billion liters of MTBE were produced in the U.S. MTBE has been detected frequently

  20. Dveloppement de l'usage des TICE et de leur utilisabilit dans les CFA du secteur automobile

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Développement de l'usage des TICE et de leur « utilisabilité » dans les CFA du secteur automobile formation professionnelle dans le secteur de l'automobile, qui entre dans sa quatrième année. Les effets de systems in professional training; teachers training; diffusion and change management. Le contexte L'automobile

  1. UBC Social Ecological Economic Development Studies (SEEDS) Student Report An Investigation into Waste Heat Recovery for Usage by a Rooftop Greenhouse

    E-Print Network [OSTI]

    into Waste Heat Recovery for Usage by a Rooftop Greenhouse Rohit Singla, Jeremy Lord, Jorden Hetherington Investigation into Waste Heat Recovery for Usage by a Rooftop Greenhouse April 4, 2013 Dr. Naoko Ellis APSC 262 of a microbrewery, an excess amount of waste heat in the form of steam is produced. In the sustainability principles

  2. Computer usage and national energy consumption: Results from a field-metering study

    SciTech Connect (OSTI)

    Desroches, Louis-Benoit; Fuchs, Heidi; Greenblatt, Jeffery; Pratt, Stacy; Willem, Henry; Claybaugh, Erin; Beraki, Bereket; Nagaraju, Mythri; Price, Sarah; Young, Scott

    2014-12-01T23:59:59.000Z

    The electricity consumption of miscellaneous electronic loads (MELs) in the home has grown in recent years, and is expected to continue rising. Consumer electronics, in particular, are characterized by swift technological innovation, with varying impacts on energy use. Desktop and laptop computers make up a significant share of MELs electricity consumption, but their national energy use is difficult to estimate, given uncertainties around shifting user behavior. This report analyzes usage data from 64 computers (45 desktop, 11 laptop, and 8 unknown) collected in 2012 as part of a larger field monitoring effort of 880 households in the San Francisco Bay Area, and compares our results to recent values from the literature. We find that desktop computers are used for an average of 7.3 hours per day (median = 4.2 h/d), while laptops are used for a mean 4.8 hours per day (median = 2.1 h/d). The results for laptops are likely underestimated since they can be charged in other, unmetered outlets. Average unit annual energy consumption (AEC) for desktops is estimated to be 194 kWh/yr (median = 125 kWh/yr), and for laptops 75 kWh/yr (median = 31 kWh/yr). We estimate national annual energy consumption for desktop computers to be 20 TWh. National annual energy use for laptops is estimated to be 11 TWh, markedly higher than previous estimates, likely reflective of laptops drawing more power in On mode in addition to greater market penetration. This result for laptops, however, carries relatively higher uncertainty compared to desktops. Different study methodologies and definitions, changing usage patterns, and uncertainty about how consumers use computers must be considered when interpreting our results with respect to existing analyses. Finally, as energy consumption in On mode is predominant, we outline several energy savings opportunities: improved power management (defaulting to low-power modes after periods of inactivity as well as power scaling), matching the rated power of power supplies to computing needs, and improving the efficiency of individual components.

  3. / http://www.sciencemag.org/content/early/recent / 26 September 2013 / Page 1 / 10.1126/science.1241934 Codon usage is biased in natural genes and can strongly affect heterolo-

    E-Print Network [OSTI]

    Church, George M.

    to represent a wide range of codon usages and secondary structure free energies across the translation differences (fig. S7A). New metrics that take into account both tRNA availability and usage (nTE) show

  4. Urinary 1-hydroxypyrene concentrations in Chinese coke oven workers relative to job category, respirator usage, and cigarette smoking

    SciTech Connect (OSTI)

    Bo Chen; Yunping Hu; Lixing Zheng; Qiangyi Wang; Yuanfen Zhou; Taiyi Jin [Fudan University, Shanghai (China). School of Public Health

    2007-09-15T23:59:59.000Z

    1-Hydroxypyrene (1-OHP) is a biomarker of recent exposure to polycyclic aromatic hydrocarbons (PAHs). We investigated whether urinary 1-OHP concentrations in Chinese coke oven workers (COWs) are modulated by job category, respirator usage, and cigarette smoking. The present cross-sectional study measured urinary 1-OHP concentrations in 197 COWs from Coking plant I and 250 COWs from Coking plant II, as well as 220 unexposed referents from Control plant I and 56 referents from Control plant II. Urinary 1-OHP concentrations (geometric mean, {mu}mol/mol creatinine) were 5.18 and 4.21 in workers from Coking plants I and II, respectively. The highest 1-OHP levels in urine were found among topside workers including lidmen, tar chasers, and whistlers. Benchmen had higher 1-OHP levels than other workers at the sideoven. Above 75% of the COWs exceeded the recommended occupational exposure limit of 2.3 {mu}mol/mol creatinine. Respirator usage and increased body mass index (BMI) slightly reduced 1-OHP levels in COWs. Cigarette smoking significantly increased urinary 1-OHP levels in unexposed referents but had no effect in COWs. Chinese COWs, especially topside workers and benchmen, are exposed to high levels of PAHs. Urinary 1-OHP concentrations appear to be modulated by respirator usage and BMI in COWs, as well as by smoking in unexposed referents.

  5. Rearrangement of Variable Region T Cell Receptor y Genes in Acute Lymphoblastic Leukemia Vy Gene Usage Differs in Mature and Immature T Cells

    E-Print Network [OSTI]

    Hara, Junichi; Benedict, Stephen H.; Yumura, Keiko; Ha-Kawa, Kyungsae; Gelfand, Erwin W.

    1989-04-01T23:59:59.000Z

    Using probes recognizing variable regions (V gamma) and joining regions (J gamma) of the T cell receptor (TCR) gamma gene, we have analyzed the usage of V gamma genes in 24 patients with T cell acute lymphoblastic leukemia ...

  6. Maximizing the usage of renewable energy will reduce our reliance on dwindling natural resources and environmental pollution. Batteries are an important enabling technology for renewable energy, portable

    E-Print Network [OSTI]

    Tsymbal, Evgeny Y.

    Maximizing the usage of renewable energy will reduce our reliance on dwindling natural resources and environmental pollution. Batteries are an important enabling technology for renewable energy, portable electronics, and modern transportation systems such as hybrid electric vehicles. However, limitation

  7. "Table B27. Space Heating Energy Sources, Floorspace for Non-Mall Buildings, 2003"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1Stocksa. AppliancesTotal"1" "Shell Storage1.2.5.6.7.

  8. "Table B29. Primary Space-Heating Energy Sources, Total Floorspace for Non-Mall Buildings, 2003"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1Stocksa. AppliancesTotal"1" "Shell Storage1.2.5.6.7.9.

  9. "Table B32. Water-Heating Energy Sources, Floorspace for Non-Mall Buildings, 2003"

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1Stocksa. AppliancesTotal"1" "Shell

  10. Spanish and English language usage by rural and urban Spanish-American families in two South Texas counties

    E-Print Network [OSTI]

    Mahoney, Mary Katherine

    1967-01-01T23:59:59.000Z

    T, Hall, The Silent ~Lanka ueee, (Garden City, New york: Doubleday snd Company, 195~9 , p. 61. 8 Joshua A. Fishman and V. C. Nahriny, ~o. cit. These include: Mary L. Cothran, "An Analysis of Occupational Patterns Among Rural snd Urban Spanish... the acculturation of this population group. Moreovery the studies have not attempted to relate Spanish and English language usage by Spanish-Americans to these particular factors. This thesis 22 Jurgen Ruesch and Weldon Kees, Nonverbal Communication IB 2 2 y: 2...

  11. Analyzing the Impact of Residential Building Attributes, Demographic and Behavioral Factors on Natural Gas Usage

    SciTech Connect (OSTI)

    Livingston, Olga V.; Cort, Katherine A.

    2011-03-03T23:59:59.000Z

    This analysis examines the relationship between energy demand and residential building attributes, demographic characteristics, and behavioral variables using the U.S. Department of Energy’s Residential Energy Consumption Survey 2005 microdata. This study investigates the applicability of the smooth backfitting estimator to statistical analysis of residential energy consumption via nonparametric regression. The methodology utilized in the study extends nonparametric additive regression via local linear smooth backfitting to categorical variables. The conventional methods used for analyzing residential energy consumption are econometric modeling and engineering simulations. This study suggests an econometric approach that can be utilized in combination with simulation results. A common weakness of previously used econometric models is a very high likelihood that any suggested parametric relationships will be misspecified. Nonparametric modeling does not have this drawback. Its flexibility allows for uncovering more complex relationships between energy use and the explanatory variables than can possibly be achieved by parametric models. Traditionally, building simulation models overestimated the effects of energy efficiency measures when compared to actual "as-built" observed savings. While focusing on technical efficiency, they do not account for behavioral or market effects. The magnitude of behavioral or market effects may have a substantial influence on the final energy savings resulting from implementation of various energy conservation measures and programs. Moreover, variability in behavioral aspects and user characteristics appears to have a significant impact on total energy consumption. Inaccurate estimates of energy consumption and potential savings also impact investment decisions. The existing modeling literature, whether it relies on parametric specifications or engineering simulation, does not accommodate inclusion of a behavioral component. This study attempts to bridge that gap by analyzing behavioral data and investigate the applicability of additive nonparametric regression to this task. This study evaluates the impact of 31 regressors on residential natural gas usage. The regressors include weather, economic variables, demographic and behavioral characteristics, and building attributes related to energy use. In general, most of the regression results were in line with previous engineering and economic studies in this area. There were, however, some counterintuitive results, particularly with regard to thermostat controls and behaviors. There are a number of possible reasons for these counterintuitive results including the inability to control for regional climate variability due to the data sanitization (to prevent identification of respondents), inaccurate data caused by to self-reporting, and the fact that not all relevant behavioral variables were included in the data set, so we were not able to control for them in the study. The results of this analysis could be used as an in-sample prediction for approximating energy demand of a residential building whose characteristics are described by the regressors in this analysis, but a certain combination of their particular values does not exist in the real world. In addition, this study has potential applications for benefit-cost analysis of residential upgrades and retrofits under a fixed budget, because the results of this study contain information on how natural gas consumption might change once a particular characteristic or attribute is altered. Finally, the results of this study can help establish a relationship between natural gas consumption and changes in behavior of occupants.

  12. Plant Wide Assessment of Energy Usage Utilizing SitEModelling as a Tool for Optimizing Energy Consumption

    SciTech Connect (OSTI)

    Ralf Janowsky, Ph.D.; Tracey Mole, Ph.D.

    2007-12-31T23:59:59.000Z

    The Evonik Degussa Corporation is the global market leader in the specialty chemicals industry. Innovative products and system solutions make an indispensable contribution to our customers' success. We refer to this as "creating essentials". In fiscal 2004, Degussa's 45,000 employees worldwide generated sales of 11.2 billion euros and operating profits (EBIT) of 965 million euros. Evonik Degussa Corporation has performed a plant wide energy usage assessment at the Mapleton, Illinois facility, which consumed 1,182,330 MMBTU in 2003. The purpose of this study was to identify opportunities for improvement regarding the plant’s utility requirements specific to their operation. The production is based mainly on natural gas usage for steam, process heating and hydrogen production. The current high price for natural gas in the US is not very competitive compared to other countries. Therefore, all efforts must be taken to minimize the utility consumption in order to maximize market position and minimize fixed cost increases due to the rising costs of energy. The main objective of this plant wide assessment was to use a methodology called Site Energy Modelling (SitE Modelling) to identify areas of potential improvement for energy savings, either in implementing a single process change or in changing the way different processes interact with each other. The overall goal was to achieve energy savings of more than 10% compared to the 2003 energy figures of the Mapleton site. The final savings breakdown is provided below: - 4.1% savings for steam generation and delivery These savings were accomplished through better control schemes, more constant and optimized loading of the boilers and increased boiler efficiency through an advanced control schemes. - 1.6% savings for plant chemical processing These saving were accomplished through optimized processing heating efficiency and batch recipes, as well as an optimized production schedule to help equalize the boiler load (e.g. steam consumption).

  13. Improving the Performance of Air-Conditioning Systems in an ASEAN Climate

    E-Print Network [OSTI]

    Busch, J. F.; Warren, M. L.

    1988-01-01T23:59:59.000Z

    and control options, whole building energ performance was simulated using DOE-2. The 5,100 m 1Y (50,000 ft2) prototype offlce building module was previous wed in earlier commercial building energy standards analysla for Malaysia and Singapore. In general...

  14. Research Positionsfor Development of Novel Green Air Conditioning and Refrigeration Systems for Transportation Vehicles

    E-Print Network [OSTI]

    Bahrami, Majid

    compression A/CR featuring Liion batteries and regenerative auxiliary power systems; iv) Development visit: http://www.sfu.ca/~mbahrami/index.html To apply, please email Dr. Majid Bahrami (mbahrami

  15. Airflow Simulation and Energy Analysis in Ventilated Room with a New Type of Air Conditioning

    E-Print Network [OSTI]

    Liu, D.; Tang, G.; Zhao, F.

    2006-01-01T23:59:59.000Z

    Airflow simulation in one ventilated room with radiant heating and natural ventilation has been carried out. Three cases are compared: the closed room, the room with full openings, and the room with small openings. The radiator heating room...

  16. Using Acid Number as a Leading Indicator of Refrigeration and Air Conditioning System Performance

    SciTech Connect (OSTI)

    Dennis Cartlidge; Hans Schellhase

    2003-07-31T23:59:59.000Z

    This report summarizes a literature review to assess the acidity characteristics of the older mineral oil and newer polyolester (POE) refrigeration systems as well as to evaluate acid measuring techniques used in other non-aqueous systems which may be applicable for refrigeration systems. Failure in the older chlorofluorocarbon/hydrochlorofluorocarbon (CFC/HCFC) / mineral oil systems was primarily due to thermal degradation of the refrigerant which resulted in the formation of hydrochloric and hydrofluoric acids. These are strong mineral acids, which can, over time, severely corrode the system metals and lead to the formation of copper plating on iron surfaces. The oil lubricants used in the older systems were relatively stable and were not prone to hydrolytic degradation due to the low solubility of water in oil. The refrigerants in the newer hydrofluorocarbon (HFC)/POE systems are much more thermally stable than the older CFC/HCFC refrigerants and mineral acid formation is negligible. However, acidity is produced in the new systems by hydrolytic decomposition of the POE lubricants with water to produce the parent organic acids and alcohols used to prepare the POE. The individual acids can therefore vary but they are generally C5 to C9 carboxylic acids. Organic acids are much weaker and far less corrosive to metals than the mineral acids from the older systems but they can, over long time periods, react with metals to form carboxylic metal salts. The salts tend to accumulate in narrow areas such as capillary tubes, particularly if residual hydrocarbon processing chemicals are present in the system, which can lead to plugging. The rate of acid production from POEs varies on a number of factors including chemical structure, moisture levels, temperature, acid concentration and metals. The hydrolysis rate of reaction can be reduced by using driers to reduce the free water concentration and by using scavenging chemicals which react with the system acids. Total acid number (TAN), which includes both mineral acids and organic acids, is therefore a useful indicator which can be used to monitor the condition of the system in order to perform remedial maintenance, when required, to prevent system failure. The critical TAN value is the acid level at which remedial action should be taken to prevent the onset of rapid acid formation which can result in system failure. The level of 0.05 mg KOH/g of oil was established for CFC/mineral oil systems based on analysis of 700 used lubricants from operating systems and failed units. There is no consensus within the refrigeration industry as to the critical TAN value for HFC/POE systems, however, the value will be higher than the CFC/mineral oil systems critical TAN value because of the much weaker organic acids produced from POE. A similar study of used POE lubricants should be performed to establish a critical TAN limit for POE systems. Titrimetric analysis per ASTM procedures is the most commonly used method to determine TAN values in lubricants in the refrigeration industry and other industries dealing with lubricating oils. For field measurements, acid test kits are often used since they provide rapid, semi-quantitative TAN results.

  17. Influence of Attic Radiant Barrier Systems on Air Conditioning Demand in an Utility Pilot Project

    E-Print Network [OSTI]

    Parker, D. S.; Sherwin, J. R.

    2002-01-01T23:59:59.000Z

    during the summer of 2000. Data analysis on the pre and post cooling and heating consumption was used to determine impacts on energy use and peak demand for the utility. The average cooling energy savings from the RBS retrofit was 3.6 kWh/day, or about 9...

  18. Analysis of a Dedicated Outdoor Air System and Low Temperature Supply Air Conditioning System

    E-Print Network [OSTI]

    Guang, L.; Li, R.

    2006-01-01T23:59:59.000Z

    This paper presents the principles and the characteristics of a dedicated outdoor air system (DOAS) and low temperature supply air system. DOAS is offered based on the demands of indoor air quality and the low temperature supply air system...

  19. Economic Analysis of a Waste Water Resource Heat Pump Air-Conditioning System in North China 

    E-Print Network [OSTI]

    Chen, H.; Li, D.; Dai, X.

    2006-01-01T23:59:59.000Z

    This paper describes the situation of waste water resource in north China and the characteristics and styles of a waste water resource heat pump system, and analyzes the economic feasibility of a waste water resource heat pump air...

  20. Understanding the Dehumidification Performance of Air-Conditioning Equipment at Part-Load Conditions

    SciTech Connect (OSTI)

    Don B. Shirey III; Hugh I. Henderson Jr; Richard A. Raustad

    2006-01-01T23:59:59.000Z

    Air conditioner cooling coils typically provide both sensible cooling and moisture removal. Data from a limited number of field studies (Khattar et al. 1985; Henderson and Rengarajan 1996; Henderson 1998) have demonstrated that the moisture removal capacity of a cooling coil degrades at part-load conditions--especially when the supply fan operates continuously while the cooling coil cycles on and off. Degradation occurs because moisture that condenses on the coil surfaces during the cooling cycle evaporates back into air stream when the coil is off. This degradation affects the ability of cooling equipment to maintain proper indoor humidity levels and may negatively impact indoor air quality. This report summarizes the results of a comprehensive project to better understand and quantify the moisture removal (dehumidification) performance of cooling coils at part-load conditions. A review of the open literature was initially conducted to learn from previous research on this topic. Detailed performance measurements were then collected for eight cooling coils in a controlled laboratory setting to understand the impact of coil geometry and operating conditions on transient moisture condensation and evaporation by the coils. Measurements of cooling coil dehumidification performance and space humidity levels were also collected at seven field test sites. Finally, an existing engineering model to predict dehumidification performance degradation for single-stage cooling equipment at part-load conditions (Henderson and Rengarajan 1996) was enhanced to include a broader range of fan control strategies and an improved theoretical basis for modeling off-cycle moisture evaporation from cooling coils. The improved model was validated with the laboratory measurements, and this report provides guidance for users regarding proper model inputs. The model is suitable for use in computerized calculation procedures such as hourly or sub-hourly building energy simulation programs (e.g., DOE's EnergyPlus building energy simulation program, http://www.energyplus.gov ).

  1. Heating, Ventilation, and Air Conditioning Design Strategy for a Hot-Humid Production Builder

    SciTech Connect (OSTI)

    Kerrigan, P.

    2014-03-01T23:59:59.000Z

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

  2. Modelica Library for Building Heating, Ventilation and Air-Conditioning Systems

    E-Print Network [OSTI]

    Wetter, Michael

    2010-01-01T23:59:59.000Z

    to a strati?ed thermal energy storage Figure 5: Model ofsystem with thermal energy storage. (to model ventilation

  3. A Study to Determine the Energy Impact of Adding Polarshield to Air Conditioning Systems

    E-Print Network [OSTI]

    Cromer, C. J.

    2001-01-01T23:59:59.000Z

    unit operating under typical hot outdoor conditions (95 degrees F). The test was operated in a “before” - “after” manner with each before-after segment operated for twelve days and three tests were conducted - one on a new 2.5 ton system where 1.25 oz...

  4. Modeling and Control of Aggregated Air Conditioning Loads Under Realistic Conditions

    SciTech Connect (OSTI)

    Chang, Chin-Yao; Zhang, Wei; Lian, Jianming; Kalsi, Karanjit

    2013-02-24T23:59:59.000Z

    Demand-side control is playing an increasingly important role in smart grid control strategies. Modeling the dynamical behavior of a large population of appliances is especially important to evaluate the effectiveness of various load control strategies. In this paper, a high accuracy aggregated model is first developed for a population of HVAC units. The model efficiently includes statistical information of the population, systematically deals with heterogeneity, and accounts for a second-order effect necessary to accurately capture the transient dynamics in the collective response. Furthermore, the model takes into account the lockout effect of the compressor in order to represent the dynamics of the system under control more accurately. Then, a novel closed loop load control strategy is designed to track a desired demand curve and to ensure a stable and smooth response.

  5. Risk Factors in Heating, Ventilating, and Air-Conditioning Systems for Occupant Symptoms in

    E-Print Network [OSTI]

    Mendell, M.J.; Lei-Gomez, Q.; Mirer, A.; Seppanen, O.; Brunner, G.

    2007-01-01T23:59:59.000Z

    LBNL-61870 Risk Factors in Heating, Ventilating, and Air-for Occupant Symptoms in Heating, Ventilating, and Air-uncertain. Characteristics of heating, ventilating, and air-

  6. Use of chlorofluorocarbons in refrigeration, insulation and mobile air conditioning in the USA*

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    FILE COPY DO NOT REMOVE Use of chlorofluorocarbons in refrigeration, insulation and mobile air in refrigeration equipment and mobile air conditioners, or as the blowing agent in foam insulations. When again accounted for _ 40 %of the potential risk to the environment. Refrigeration, mobile air

  7. VFD Technology's Energy Conservation Application at Metro Ventilation Air-conditioning System

    E-Print Network [OSTI]

    Li, G.

    2006-01-01T23:59:59.000Z

    Shenzhen metro has been applied the VFD control technique and close loop negative control logic to adjust and control the temperature and humidity of public area and conserve the energy on HVAC system of children palace station and Fumin station...

  8. Risk Factors in Heating, Ventilating, and Air-Conditioning Systems for Occupant Symptoms in

    E-Print Network [OSTI]

    Mendell, M.J.; Lei-Gomez, Q.; Mirer, A.; Seppanen, O.; Brunner, G.

    2007-01-01T23:59:59.000Z

    upper respiratory symptoms, cough, eye symptoms, fatigue orof breath, or chest tightness); cough; upper respiratory (atrespiratory symptoms, cough, and eye symptoms. Calibration

  9. 2416, Page 1 International Refrigeration and Air Conditioning Conference at Purdue, July 12-15, 2010

    E-Print Network [OSTI]

    evaporators defrost more often than fin-and-tube heat pump units, operating under similar conditions understanding of the heat and mass transfer characteristics of coils during frosting and defrosting transient-15, 2010 Experimental Investigation of Frost Growth on Microchannel Heat Exchangers Ehsan Moallem1

  10. High Efficiency Liquid-Desiccant Regenerator for Air Conditioning and Industrial Drying

    SciTech Connect (OSTI)

    Andrew Lowenstein

    2005-12-19T23:59:59.000Z

    Over 2 quads of fossil fuels are used each year for moisture removal. This includes industrial and agricultural processes where feedstocks and final products must be dried, as well as comfort conditioning of indoor spaces where the control of humidity is essential to maintaining healthy, productive and comfortable working conditions. Desiccants, materials that have a high affinity for water vapor, can greatly reduce energy use for both drying and dehumidification. An opportunity exists to greatly improve the competitiveness of advanced liquid-desiccant systems by increasing the efficiency of their regenerators. It is common practice within the chemical process industry to use multiple stage boilers to improve the efficiency of thermal separation processes. The energy needed to regenerate a liquid desiccant, which is a thermal separation process, can also be reduced by using a multiple stage boiler. In this project, a two-stage regenerator was developed in which the first stage is a boiler and the second stage is a scavenging-air regenerator. The only energy input to this regenerator is the natural gas that fires the boiler. The steam produced in the boiler provides the thermal energy to run the second-stage scavenging-air regenerator. This two-stage regenerator is referred to as a 1?-effect regenerator. A model of the high-temperature stage of a 1?-effect regenerator for liquid desiccants was designed, built and successfully tested. At nominal operating conditions (i.e., 2.35 gpm of 36% lithium chloride solution, 307,000 Btu/h firing rate), the boiler removed 153 lb/h of water from the desiccant at a gas-based efficiency of 52.9 % (which corresponds to a COP of 0.95 when a scavenging-air regenerator is added). The steam leaving the boiler, when condensed, had a solids concentration of less than 10 ppm. This low level of solids in the condensate places an upper bound of about 6 lb per year for desiccant loss from the regenerator. This low loss will not create maintenance problems nor will it significantly increase operating expenses. An energy balance on the boiler showed that heat loss through the insulated jacket was 10%. This value is much higher than the 2% to 5% that is typical of most boilers and indicates a need to better insulate the unit. With insulation that brings jacket losses down to 5%, a 1?-effect regenerator that uses this boiler as its high-temperature stage will have a gas-based COP of 1.05. The estimated cost to manufacture a 300-lb/h, 1?-effect regenerator at 500 units per year is $17,140. Unfortunately, the very high cost for natural gas that now prevails in the U.S. makes it very difficult for a gas-fired LDAC to compete against an electric vapor-compression air conditioner in HVAC applications. However, there are important industrial markets that need very dry air where the high price of natural gas will encourage the sale of a LDAC with the 1?-effect regenerator since in these markets it competes against less efficient gas-fired desiccant technologies. A manufacturer of industrial dehumidification equipment is now negotiating a sales agreement with us that would include the 1?-effect regenerator.

  11. air-conditioning system driven: Topics by E-print Network

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

    Fie?.-Test Site - Budget Inn, System Engine Chiller Cleveland Bleyle of America, Engine Chiller Atlanta Panhandle Eastern, EngineIAbsorption Kansas City Bristol Wyndham, Engine...

  12. alternative automative air-conditioning: Topics by E-print Network

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

    Websites Summary: of a partial automation since they act on the control part of the vehicle. This increasing automationABV- A Low Speed Automation Project to Study the...

  13. Modelica Library for Building Heating, Ventilation and Air-Conditioning Systems

    E-Print Network [OSTI]

    Wetter, Michael

    2010-01-01T23:59:59.000Z

    for Building Heating, Ventilation and Air-Conditioningfor Building Heating, Ventilation and Air-Conditioningfor building heating, ventilation and air con- ditioning

  14. Risk Factors in Heating, Ventilating, and Air-Conditioning Systems for Occupant Symptoms in

    E-Print Network [OSTI]

    Mendell, M.J.; Lei-Gomez, Q.; Mirer, A.; Seppanen, O.; Brunner, G.

    2007-01-01T23:59:59.000Z

    for building ventilation systems." Retrieved December 15,of moisture and ventilation system contamination in U.S.installed in office ventilation systems on workers' health

  15. Comparison of Zone Cooling Load for Radiant and All-Air Conditioning Systems

    E-Print Network [OSTI]

    Feng, Jingjuan; Schiavon, Stefano; Bauman, Fred

    2012-01-01T23:59:59.000Z

    described in future papers. While the high peak-cooling ratecooling load can be in the range of 10-40% higher depending on the load conditions. Future

  16. Economic Analysis of a Waste Water Resource Heat Pump Air-Conditioning System in North China

    E-Print Network [OSTI]

    Chen, H.; Li, D.; Dai, X.

    2006-01-01T23:59:59.000Z

    This paper describes the situation of waste water resource in north China and the characteristics and styles of a waste water resource heat pump system, and analyzes the economic feasibility of a waste water resource heat pump air...

  17. air-conditioned domestic buildings: Topics by E-print Network

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

    layer, the outer layer and the air layer between them. To make the best of the solar energy, the low emissivity glass, which can reduce the harmful effect to the surroundings by...

  18. The Influence of Air-Conditioning Efficiency in the Peak Load Demand for Kuwait

    E-Print Network [OSTI]

    Ali, A. A.; Maheshwari, G. P.

    2007-01-01T23:59:59.000Z

    in reduction in peak load demand and savings of KD 2,301 million in capital expenditures are possible for the years between 2001 and 2025 if the PR of AC systems are improved to 1.2 kW/RT from its present level of 2.0 kW/RT. Also, it is estimated that extent...

  19. Experiment on TiO2/AC Photocatalysis Technique to Eliminate Toluene in Air Conditioning Systems

    E-Print Network [OSTI]

    Hu, Y.; Feng, G.; Yuan, Q.

    2006-01-01T23:59:59.000Z

    at present, the article proposes that new-type purification technique and hopes to promote the upgrading of the product about purification. 2. INTRODUTION ON THE STRURE AND STUFF OF ACTIVE CARBON AND NANO- TITANIUM DIOXIDE PHOTOCATALYSIS PURIFICATION... WEB What is called active carbon and nano-titanium dioxide photocatalysis technique is to utilize the method of compounding active carbon and nanometer photocatalyst to firstly form absorption layer on supporting body surface by gluing, which...

  20. Analysis of Energy Saving in a Clean Room Air-conditioning System 

    E-Print Network [OSTI]

    Liu, S.; Liu, J.; Pei, J.; Wang, M.

    2006-01-01T23:59:59.000Z

    above, we had chosen a representative air-handling unit for the testing renovation of 2nd return air system. Cleaning area for this AHU was a capsule clean room with a hundred thousand cleanliness classes. Indoor controlled dry-bulb temperature...