National Library of Energy BETA

Sample records for air conditioning tour

  1. Tour Planning for an Unmanned Air Vehicle under Wind Conditions

    E-Print Network [OSTI]

    Iyer, Ram Venkataraman

    Tour Planning for an Unmanned Air Vehicle under Wind Conditions Rachelle L. McNeely and Ram V. Iyer Texas Tech University, Lubbock, TX 79409-1042 and Phillip R. Chandler U. S. Air Force Research Laboratory, Wright­Patterson Air Force Base, Ohio 45433-7531 Graduate Student, Department of Mathematics

  2. History of Air Conditioning

    Office of Energy Efficiency and Renewable Energy (EERE)

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

  3. Air conditioning apparatus

    SciTech Connect (OSTI)

    Ouchi, Y.; Otoshi, Sh.

    1985-04-09

    The air conditioning apparatus according to the invention comprises an absorption type heat pump comprising a system including an absorber, a regenerator, a condenser and an evaporator. A mixture of lithium bromide and zinc chloride is used as an absorbent which is dissolved to form an absorbent solution into a mixed solvent having a ratio by weight of methanol to water, the ratio falling in a range between 0.1 and 0.3. Said solution is circulated through the system.

  4. Optimization of Air Conditioning Cycling 

    E-Print Network [OSTI]

    Seshadri, Swarooph

    2012-10-19

    Systems based on the vapor compression cycle are the most widely used in a variety of air conditioning applications. Despite the vast growth of modern control systems in the field of air conditioning systems, industry standard control is still...

  5. 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

  6. Alternative Air Conditioning Technologies: Underfloor Air Distribution (UFAD)

    E-Print Network [OSTI]

    Webster, Tom

    2004-01-01

    Refrigerating, and Air-Conditioning Engineers, Inc, 1992.Refrigerating, and Air-Conditioning Engineers, Inc. , 1992.Refrigerating, and Air-Conditioning Engineers, Inc. , 1990.

  7. Air conditioning system

    DOE Patents [OSTI]

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

    2005-02-01

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

  8. High Energy Efficiency Air Conditioning

    SciTech Connect (OSTI)

    Edward McCullough; Patrick Dhooge; Jonathan Nimitz

    2003-12-31

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

  9. Heating, Ventilation, and Air Conditioning Design

    E-Print Network [OSTI]

    Heating, Ventilation, and Air Conditioning Design Strategy for a Hot-Humid Production Builder P% postconsumer waste #12;iii Heating, Ventilation, and Air Conditioning Design Strategy for a Hot

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

    E-Print Network [OSTI]

    Holley, James Andrew

    1978-01-01

    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...

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

    E-Print Network [OSTI]

    Bell, Geoffrey C.

    2010-01-01

    Control of Computer Room Air Conditioning using IT EquipmentControl of Computer Room Air Conditioning using IT equipmentcontrol computer room air conditioning. The data provided

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

    E-Print Network [OSTI]

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

    2002-01-01

    of Residential Central Air Conditioning Load Shapes in NEMSof Residential Central Air Conditioning Load Shapes in NEMSof Residential Central Air Conditioning Load Shapes in NEMS

  13. Air Conditioning | Department of Energy

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

    How does it work? An air conditioner uses energy -- usually electricity -- to transfer heat from the interior of your home to the relatively warm outside environment....

  14. Lab Breakthrough: Desiccant Enhanced Evaporative Air Conditioning

    Office of Energy Efficiency and Renewable Energy (EERE)

    Researchers at the National Renewable Energy Laboratory (NREL) invented a breakthrough technology that improves air conditioning in a novel way — with heat.

  15. History of Air Conditioning | Department of Energy

    Energy Savers [EERE]

    Efficiency Standards Drive Improvements As air conditioning use soared in the 1970s, the energy crisis hit. In response, lawmakers passed laws to reduce energy consumption across...

  16. Air Conditioning | Department of Energy

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

    pump can deliver one-and-a-half to three times more heat energy to a home than the electrical energy it consumes. | Photo courtesy of iStockPhotoYinYang. Air-Source Heat Pumps...

  17. Breakthrough Video: Desiccant Enhanced Evaporative Air Conditioning

    SciTech Connect (OSTI)

    2012-01-01

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

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

    Office of Environmental Management (EM)

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

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

    Energy Savers [EERE]

    HEATING, AIR-CONDITIONING AND REFRIGERATION DISTRIBUTORS INTERNATIONAL (HARDI) HEATING, AIR-CONDITIONING AND REFRIGERATION DISTRIBUTORS INTERNATIONAL (HARDI) OE Framework Document...

  20. Roswell International Air Center Airport (ROW) Pavement Condition and Analysis

    E-Print Network [OSTI]

    Cal, Mark P.

    Roswell International Air Center Airport (ROW) Pavement Condition and Analysis Submitted to: Jane M ................................................1. Conditions at Roswell International Air Center (ROW) 4 .................................Figure 1. Geographic Location of Roswell International Air Center (ROW) 4 ..............................Table 1

  1. Alternative Air Conditioning Technologies: Underfloor AirDistribution (UFAD)

    SciTech Connect (OSTI)

    Webster, Tom

    2004-06-01

    Recent trends in today's office environment make it increasingly more difficult for conventional centralized HVAC systems to satisfy the environmental preferences of individual officer workers using the standardized approach of providing a single uniform thermal and ventilation environment. Since its original introduction in West Germany during the 1950s, the open plan office containing modular workstation furniture and partitions is now the norm. Thermostatically controlled zones in open plan offices typically encompass relatively large numbers of workstations in which a diverse work population having a wide range of preferred temperatures must be accommodated. Modern office buildings are also being impacted by a large influx of heat-generating equipment (computers, printers, etc.) whose loads may vary considerably from workstation to workstation. Offices are often reconfigured during the building's lifetime to respond to changing tenant needs, affecting the distribution of within-space loads and the ventilation pathways among and over office partitions. Compounding this problem, there has been a growing awareness of the importance of the comfort, health, and productivity of individual office workers, giving rise to an increased demand among employers and employees for a high-quality work environment. During recent years an increasing amount of attention has been paid to air distribution systems that individually condition the immediate environments of office workers within their workstations to address the issues outlined above. As with task/ambient lighting systems, the controls for the ''task'' components of these systems are partially or entirely decentralized and under the control of the occupants. Typically, the occupant has control over the speed and direction, and in some cases the temperature, of the incoming air supply. Variously called ''task/ambient conditioning,'' ''localized thermal distribution,'' and ''personalized air conditioning'' systems, these systems have been most commonly installed in open-plan office buildings in which they provide supply air and (in some cases) radiant heating directly into workstations. TAC systems can be classified into the following two major categories: (1) furniture-based, and (2) floor-based, underfloor air distribution (UFAD). A large majority of these systems include a raised floor system with which underfloor plenums are used to deliver conditioned air to the space through floor grills, or in conjunction with the workstation furniture and partitions.

  2. Project Tour

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass mapSpeedingProgramExemptions |(Conference)Project Tour Project Tour See NMSSUP from

  3. A New Approach to Industrial Air Conditioning 

    E-Print Network [OSTI]

    Gravenstreter, T.

    1982-01-01

    50% relati~e humi interest in evaporative cooling offers additional dity were usually viewed as dehumidifier jobs. means to curb the rising cost of conditioning air Those above 50% were thought to be best suited to for human or product comfort.... refrigeration. I In the market place below 50% relative humidity, the chemical dehumidifier ranged through the middle 1970 era, when energy cost became a painful reality. We began to research energy reduction means, as When manufacturing areas require...

  4. Innovative Systems for Solar Air Conditioning of Buildings 

    E-Print Network [OSTI]

    Kessling, W.; Peltzer, M.

    2004-01-01

    Solar air conditioning is an attractive technology to achieve comfortable room conditions, especially in hot and sunny climates. In particular air conditioning systems based on sorption technologies offer several advantages as they can be designed...

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

    SciTech Connect (OSTI)

    Kozubal, E.

    2013-02-01

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

  6. Aggregated Modeling and Control of Air Conditioning Loads for...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Aggregated Modeling and Control of Air Conditioning Loads for Demand Response Citation Details In-Document Search Title: Aggregated Modeling and Control of Air...

  7. Alternative non-CFC mobile air conditioning

    SciTech Connect (OSTI)

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

    1992-09-01

    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.

  8. Energy Conservation of Air Conditioning Systems in Large Public Buildings 

    E-Print Network [OSTI]

    Liu, P.; Li, D.

    2006-01-01

    with the heating characteristics of the exterior -protected construction, the set value of the temperature of the air-conditioning, the lectotype of the Central air-conditioning system, the regulation and the modification of the transmission and distribution system...

  9. Development of Optimization Tool for Air Conditioning System Operation 

    E-Print Network [OSTI]

    Sumiyoshi, D.; Akashi, Y.

    2008-01-01

    This study aims to realize the optimization of the air-conditioning system operation. Although set values of air-conditioning systems are usually fixed, variable setting values are used in this study. It is possible that less energy consumption...

  10. Influence of air conditioning management on heat island in Paris air street temperatures

    E-Print Network [OSTI]

    Influence of air conditioning management on heat island in Paris air street temperatures Brice 2012 Available online 13 March 2012 Keywords: Air conditioning Heat island mitigation Urban heat island killer'', is exacerbated in urban areas owing to the heat island effect. Air conditioning (A/C) is a key

  11. Central Air Conditioning | Department of Energy

    Office of Environmental Management (EM)

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

  12. Comparison of Zone Cooling Load for Radiant and All-Air Conditioning Systems

    E-Print Network [OSTI]

    Feng, Jingjuan; Schiavon, Stefano; Bauman, Fred

    2012-01-01

    Load for Radiant and Air Conditioning Systems. ProceedingsRefrigerating and Air Conditioning Engineers Inc. Babiak,of European Heating ahd Air-Conditioning Associations. CEN (

  13. Effects of ambient humidity on the energy use of air conditioning equipment

    E-Print Network [OSTI]

    White, Justin George

    2010-01-01

    Refrigeration, and Air-Conditioning Engi- neers. cz07ventilation, and air conditioning. ksan identifier for theon the Energy Use of Air Conditioning Equipment A Thesis

  14. Thermal comfort in naturally-ventilated and air-conditioned classrooms in the tropics.

    E-Print Network [OSTI]

    Kwok, Alison G

    1997-01-01

    Refrigerating, and Air-Conditioning Engineers, Inc. Elliot,Refrigerating, and Air- Conditioning Engineers, Inc. Nicol,Refrigerating and Air-conditioning Engineers, Inc. ASHRAE.

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

    E-Print Network [OSTI]

    2004-01-01

    of Commercial and Residential Air Conditioning and HeatingOF COMMERCIAL AND RESIDENTIAL AIR-CONDITIONING AND HEATINGand residential air-conditioning and heating equipment.

  16. Central Air Conditioning | Department of Energy

    Energy Savers [EERE]

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

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

    E-Print Network [OSTI]

    Browning, B. K.

    2002-01-01

    This paper discusses some of the difficulties of selecting direct expansion (DX) air conditioning systems to dehumidify conditioned spaces in hot & humid climates. It is a common opinion among designers that concerns of humidity control are best...

  18. Heating, Ventilation and Air Conditioning Efficiency

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

    outside pump circulating heat transfer fluid air make-up inside exhaust 24 Cogged V Belts A major N.C. Manufacturer Tested 2-17 Months (yr 1985) .052KWH (.13 EP) 2700 Hours...

  19. Central Air Conditioning | Department of Energy

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

    will require more energy to cool your house. A preferable alternative is a dehumidifying heat pipe, which can be added as a retrofit to most existing systems. Types of Central Air...

  20. Advanced Development and Market Penetration of Desiccant-Based Air-Conditioning Systems

    SciTech Connect (OSTI)

    Vineyard, E A; Sand, J R; Linkous, R L; Baskin, E; Mason, D

    1998-01-01

    Desiccant Air Conditioning Systems can be used as alternatives for conventional air conditioning equipment in any commercial or residential building.

  1. 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.

    2006-01-01

    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...

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

    E-Print Network [OSTI]

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

    2006-01-01

    the function and the level of the building, but also save energy. At present, air-conditioning design in internal commercial buildings is becoming more complex and enormous. The proportion of air conditioning systems in the whole building is getting larger...

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

    E-Print Network [OSTI]

    K-7109Agnew Hall M-2204Air Conditioning Plant M-833Ambler Johnston Hall - East Wing M-832Ambler is an equal opportunity, affirmative action institution. K-7109 Agnew Hall 460 West Campus Dr M-2204 Air Conditioning Plant 344 Stanger St M-833 Ambler Johnston Hall - East Wing 700 Washington St SW M-832 Ambler

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

    DOE Patents [OSTI]

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

    1998-01-01

    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.

  5. BEETIT: Building Cooling and Air Conditioning

    SciTech Connect (OSTI)

    None

    2010-09-01

    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.

  6. Importance of Design Conditions for Sizing Air-Conditioning Plant 

    E-Print Network [OSTI]

    Shaban, N.; Maheshwari, G. P.; Suri, R. K.

    2000-01-01

    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...

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

    SciTech Connect (OSTI)

    Woods, J.; Kozubal, E.

    2012-10-01

    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.

  8. Reducing Air-Conditioning System Energy Using a PMV Index 

    E-Print Network [OSTI]

    Li, H.; Zhang, Q.

    2006-01-01

    The control system of central air-conditioning, based on PMV, not only improves thermal comfort but also reduces system energy consumption. A new thermal comfort degree softsensor model is built via use of the CMAC neural network nonlinear...

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

    E-Print Network [OSTI]

    Liu, P.; Li, D.

    2006-01-01

    -conditioning. Modifications to the air-conditioning system and some advanced air conditioning systems are introduced, which are helpful for system optimization. In this paper, based on analysis of the characteristics of the air - conditioning system in foreign high speed...

  10. ORNL/TM-2008/227 Using Air Conditioning Load Response

    E-Print Network [OSTI]

    Pennycook, Steve

    ORNL/TM-2008/227 Using Air Conditioning Load Response for Spinning Reserve 2008 Prepared by John D...........................................................................................................4 II. Air Conditioning Temperature Effect and High SEER Ratings .................................................................................................................10 IV. Use of Building Air Conditioning Models to Predict Load

  11. Commentary: Air-conditioning as a risk for increased use of health services

    E-Print Network [OSTI]

    Mendell, Mark J.

    2004-01-01

    55476 Commentary: Air-conditioning as a risk for increased5-14-04 Commentary: Air-conditioning as a risk for increasedof office buildings with air-conditioning systems (e.g. ,

  12. 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)...

  13. Analysis of Air Conditioning Effectiveness vs. Outdoor Conditions: Traditional Bins or Joint Frequency Bins? 

    E-Print Network [OSTI]

    Cohen, B. M.

    1998-01-01

    There are a number of methods used to estimate the effectiveness of air conditioning equipment in handling loads. Full hourly computer simulations are probably the most accurate, but lack flexibility and are more cumbersome ...

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

    E-Print Network [OSTI]

    Han, Junqiao; Piette, Mary Ann

    2008-01-01

    LBNL-63806 Refrigeration, Air Conditioning, & Electric Powerand its Applications in Air Conditioning and Refrigeratingand its applications in Air Conditioning and refrigerating

  15. Ventilation and air-conditioning concept for CNGS underground areas

    E-Print Network [OSTI]

    Lindroos, J

    2002-01-01

    The aim of the CNGS project is to prove the existence of neutrino oscillation by generating an intense neutrino beam from CERN in the direction of the Gran Sasso laboratory in Italy, where two large neutrino detectors are built to detect the neutrinos. All the components for producing the neutrino beam will be situated in the underground tunnels, service galleries and chambers. The ventilation and air-conditioning systems installed in these underground areas have multiple tasks. Depending on the operating mode and structure to be air-conditioned, the systems are required to provide fresh air, cool the machine, dehumidify areas housing sensible equipment or assure the smoke removal in a case of a fire. This paper presents the technical solutions foreseen to meet these requirements.

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

    E-Print Network [OSTI]

    Phillips, J. N.

    1996-01-01

    not a new technology at the time, neither was the gas engine. But now in the 19901s, gas engine-drive (GED) chillers have "hit" the air conditioning market with a "bang". In the Lone Star Gas Company area in 1995, GED chillers are now being considered...

  17. "Table HC11.6 Air Conditioning Characteristics by Northeast...

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

    "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...

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

    E-Print Network [OSTI]

    Zhang, Wei

    strategy is designed to track a desired demand curve and to ensure a stable and smooth response. IModeling and Control of Aggregated Air Conditioning Loads Under Realistic Conditions Chin-Yao Chang, Wei Zhang, Jianming Lian, and Karanjit Kalsi Abstract-- Demand-side control is playing an increasingly

  19. Magnetic Refrigeration Technology for High Efficiency Air Conditioning

    SciTech Connect (OSTI)

    Boeder, A; Zimm, C

    2006-09-30

    Magnetic refrigeration was investigated as an efficient, environmentally friendly, flexible alternative to conventional residential vapor compression central air conditioning systems. Finite element analysis (FEA) models of advanced geometry active magnetic regenerator (AMR) beds were developed to minimize bed size and thus magnet mass by optimizing geometry for fluid flow and heat transfer and other losses. Conventional and magnetocaloric material (MCM) regenerator fabrication and assembly techniques were developed and advanced geometry passive regenerators were built and tested. A subscale engineering prototype (SEP) magnetic air conditioner was designed, constructed and tested. A model of the AMR cycle, combined with knowledge from passive regenerator experiments and FEA results, was used to design the regenerator beds. A 1.5 Tesla permanent magnet assembly was designed using FEA and the bed structure and plenum design was extensively optimized using FEA. The SEP is a flexible magnetic refrigeration platform, with individually instrumented beds and high flow rate and high frequency capability, although the current advanced regenerator geometry beds do not meet performance expectations, probably due to manufacturing and assembly tolerances. A model of the AMR cycle was used to optimize the design of a 3 ton capacity magnetic air conditioner, and the system design was iterated to minimize external parasitic losses such as heat exchanger pressure drop and fan power. The manufacturing cost for the entire air conditioning system was estimated, and while the estimated SEER efficiency is high, the magnetic air conditioning system is not cost competitive as currently configured. The 3 ton study results indicate that there are other applications where magnetic refrigeration is anticipated to have cost advantages over conventional systems, especially applications where magnetic refrigeration, through the use of its aqueous heat transfer fluid, could eliminate intermediate heat exchangers or oil distribution issues found in traditional vapor compression systems.

  20. Do residential air-conditioning rebates miss the mark?

    SciTech Connect (OSTI)

    Stickney, B.; Shepard, M.

    1994-12-31

    The rebates utilities provide for residential central air conditioners and heat pumps to encourage improved cooling efficiency may inadvertently reward higher peak demand in many cases. This problem could be avoided by using both efficiency and peak performance to determine eligibility for rebates. Such changes to incentive formulas would better align the utilities` DSM programs with the dual goals of improved efficiency and peak demand reduction. Improved peak performance would be especially advantageous for sunbelt utilities whose residential cooling load is highly coincident with the summer peak. Air conditioning has been called the utilities` ``load from hell,`` because it is intermittent, unpredictable, and is the largest contributor to summer peak demand, requiring massive investments in power generation and delivery capacity. It is no wonder then that more DSM programs are targeted at space cooling than at any other end use. Ironically, however, all of the residential rebate programs the authors examined for central air conditioners and heat pumps are based on the seasonal energy efficiency ratio (SEER), which provides a valuable measure of seasonal energy efficiency but is not a good indicator of peak demand. Residential central air conditioning incentive programs for eight major utilities are based exclusively on SEER and most ratchet up the incentive levels with increasing SEER. None include the measure for peak demand for residential cooling equipment, which is the so-called energy efficiency ratio, or EER.

  1. Jefferson Lab Virtual Tour

    SciTech Connect (OSTI)

    None

    2013-07-13

    Take a virtual tour of the campus of Thomas Jefferson National Accelerator Facility. You can see inside our two accelerators, three experimental areas, accelerator component fabrication and testing areas, high-performance computing areas and laser labs.

  2. Jefferson Lab Virtual Tour

    ScienceCinema (OSTI)

    None

    2014-05-22

    Take a virtual tour of the campus of Thomas Jefferson National Accelerator Facility. You can see inside our two accelerators, three experimental areas, accelerator component fabrication and testing areas, high-performance computing areas and laser labs.

  3. Anchorage Solar Tour

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Alaska Center for Appropriate Technology has partnered with the American Solar Energy Society to share how solar energy is being used and developed in Alaska communities. Tours take place in Fairbanks, Mat Su, Kenai, and Anchorage.

  4. Campus Tours | ORNL

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

    the Spallation Neutron Source at Oak Ridge National Laboratory, the Historic Graphite Reactor at Oak Ridge National Laboratory and a drive around the old K-25 Plant. The tour...

  5. REAP Anchorage Solar Tour

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Alaska Center for Appropriate Technology has partnered with the American Solar Energy Society to share how solar energy is being used and developed in Alaska communities. Tours take place in...

  6. Solar air-conditioning-active, hybrid and passive

    SciTech Connect (OSTI)

    Yellott, J. I.

    1981-04-01

    After a discussion of summer air conditioning requirements in the United States, active, hybrid, and passive cooling systems are defined. Active processes and systems include absorption, Rankine cycle, and a small variety of miscellaneous systems. The hybrid solar cooling and dehumidification technology of desiccation is covered as well as evaporative cooling. The passive solar cooling processes covered include convective, radiative and evaporative cooling. Federal and state involvement in solar cooling is then discussed. (LEW)

  7. High Technology Centrifugal Compressor for Commercial Air Conditioning Systems

    SciTech Connect (OSTI)

    Ruckes, John

    2006-04-15

    R&D Dynamics, Bloomfield, CT in partnership with the State of Connecticut has been developing a high technology, oil-free, energy-efficient centrifugal compressor called CENVA for commercial air conditioning systems under a program funded by the US Department of Energy. The CENVA compressor applies the foil bearing technology used in all modern aircraft, civil and military, air conditioning systems. The CENVA compressor will enhance the efficiency of water and air cooled chillers, packaged roof top units, and other air conditioning systems by providing an 18% reduction in energy consumption in the unit capacity range of 25 to 350 tons of refrigeration The technical approach for CENVA involved the design and development of a high-speed, oil-free foil gas bearing-supported two-stage centrifugal compressor, CENVA encompassed the following high technologies, which are not currently utilized in commercial air conditioning systems: Foil gas bearings operating in HFC-134a; Efficient centrifugal impellers and diffusers; High speed motors and drives; and System integration of above technologies. Extensive design, development and testing efforts were carried out. Significant accomplishments achieved under this program are: (1) A total of 26 builds and over 200 tests were successfully completed with successively improved designs; (2) Use of foil gas bearings in refrigerant R134a was successfully proven; (3) A high speed, high power permanent magnet motor was developed; (4) An encoder was used for signal feedback between motor and controller. Due to temperature limitations of the encoder, the compressor could not operate at higher speed and in turn at higher pressure. In order to alleviate this problem a unique sensorless controller was developed; (5) This controller has successfully been tested as stand alone; however, it has not yet been integrated and tested as a system; (6) The compressor successfully operated at water cooled condensing temperatures Due to temperature limitations of the encoder, it could not be operated at air cooled condensing temperatures. (7) The two-stage impellers/diffusers worked well separately but combined did not match well.

  8. Effect of Intake Air Filter Condition on Vehicle Fuel Economy

    SciTech Connect (OSTI)

    Norman, Kevin M; Huff, Shean P; West, Brian H

    2009-02-01

    The U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy and the U.S. Environmental Protection Agency (EPA) jointly maintain a fuel economy website (www.fueleconomy.gov), which helps fulfill their responsibility under the Energy Policy Act of 1992 to provide accurate fuel economy information [in miles per gallon (mpg)] to consumers. The site provides information on EPA fuel economy ratings for passenger cars and light trucks from 1985 to the present and other relevant information related to energy use such as alternative fuels and driving and vehicle maintenance tips. In recent years, fluctuations in the price of crude oil and corresponding fluctuations in the price of gasoline and diesel fuels have renewed interest in vehicle fuel economy in the United States. (User sessions on the fuel economy website exceeded 20 million in 2008 compared to less than 5 million in 2004 and less than 1 million in 2001.) As a result of this renewed interest and the age of some of the references cited in the tips section of the website, DOE authorized the Oak Ridge National Laboratory (ORNL) Fuels, Engines, and Emissions Research Center (FEERC) to initiate studies to validate and improve these tips. This report documents a study aimed specifically at the effect of engine air filter condition on fuel economy. The goal of this study was to explore the effects of a clogged air filter on the fuel economy of vehicles operating over prescribed test cycles. Three newer vehicles (a 2007 Buick Lucerne, a 2006 Dodge Charger, and a 2003 Toyota Camry) and an older carbureted vehicle were tested. Results show that clogging the air filter has no significant effect on the fuel economy of the newer vehicles (all fuel injected with closed-loop control and one equipped with MDS). The engine control systems were able to maintain the desired AFR regardless of intake restrictions, and therefore fuel consumption was not increased. The carbureted engine did show a decrease in fuel economy with increasing restriction. However, the level of restriction required to cause a substantial (10-15%) decrease in fuel economy (such as that cited in the literature) was so severe that the vehicle was almost undrivable. Acceleration performance on all vehicles was improved with a clean air filter. Once it was determined how severe the restriction had to be to affect the carbureted vehicle fuel economy, the 2007 Buick Lucerne was retested in a similar manner. We were not able to achieve the level of restriction that was achieved with the 1972 Pontiac with the Lucerne. The Lucerne's air filter box would not hold the filter in place under such severe conditions. (It is believed that this testing exceeded the design limits of the air box.) Tests were conducted at a lower restriction level (although still considerably more severe than the initial clogged filter testing), allowing the air filter to stay seated in the air box, and no significant change was observed in the Lucerne's fuel economy or the AFR over the HFET cycle. Closed-loop control in modern fuel injected vehicle applications is sophisticated enough to keep a clogged air filter from affecting the vehicle fuel economy. However for older, open-loop, carbureted vehicles, a clogged air filter can affect the fuel economy. For the vehicle tested, the fuel economy with a new air filter improved as much as 14% over that with a severely clogged filter (in which the filter was so clogged that drivability was impacted). Under a more typical state of clog, the improvement with a new filter ranged from 2 to 6%.

  9. Liquid over-feeding air conditioning system and method

    DOE Patents [OSTI]

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

    1993-09-21

    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.

  10. Liquid over-feeding air conditioning system and method

    DOE Patents [OSTI]

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

    1993-01-01

    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.

  11. 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.

    2010-01-01

    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 ...

  12. 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.

    2006-01-01

    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 ...

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

    E-Print Network [OSTI]

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

    2006-01-01

    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...

  14. “Open Hatch” Tour of Offshore Wind Buoy- Text Alt Version

    Broader source: Energy.gov [DOE]

    Wind and Water Power Technologies Office Director, Jose Zayas gives a behind the scenes tour of the AXYS WindSentinel research buoy, which uses high-tech instruments to measure conditions for potential offshore wind energy development.

  15. 2180, Page 1 International Refrigeration and Air Conditioning Conference at Purdue, July 14-17, 2014

    E-Print Network [OSTI]

    2180, Page 1 15th International Refrigeration and Air Conditioning Conference at Purdue, July 14 in Yashar and Lee (2013); they optimized the evaporator circuitry for a rooftop air- conditioning (RTU) unit;2180, Page 2 15th International Refrigeration and Air Conditioning Conference at Purdue, July 14-17, 2014

  16. Multi-objective optimization of the HVAC (heating, ventilation, and air conditioning) system performance

    E-Print Network [OSTI]

    Kusiak, Andrew

    Multi-objective optimization of the HVAC (heating, ventilation, and air conditioning) system, ventilation, and air conditioning) system in a typical office facility is presented. A multi-layer perceptron. 1. Introduction HVAC (heating, ventilating and air conditioning) systems are designed to maintain

  17. Air motion within and above forest vegetation in non-ideal conditions

    E-Print Network [OSTI]

    Lee, Xuhui

    Air motion within and above forest vegetation in non-ideal conditions Xuhui Lee* School of Forestry state of knowledge about air ¯ow under ideal conditions (neutral to slightly unstable conditions knowledge of air motion in forest vegetation is a necessary step towards a better understanding of a number

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

    SciTech Connect (OSTI)

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

    2009-02-01

    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.

  19. INL Archeology Tour

    ScienceCinema (OSTI)

    None

    2013-05-28

    Check out this tour of the Idaho National Laboratory's archeological sites. The lab sits on 890-square miles of land and contains numerous archeological artifacts. Lots more content like this is available at INL's facebook page http://www.facebook.com/idahonationallaboratory.

  20. EBR-I Tour

    ScienceCinema (OSTI)

    Miley, Don

    2013-05-28

    Sixty years ago, the first light bulb to be lit with nuclear energy got its juice right here in Idaho. Here's a virtual tour of the place where it all happened. To learn more visit http://www.inl.gov/ebr.

  1. Advanced Test Reactor Tour

    SciTech Connect (OSTI)

    Miley, Don

    2011-01-01

    The Advanced Test Reactor at Idaho National Laboratory is the foremost nuclear materials test reactor in the world. This virtual tour describes the reactor, how experiments are conducted, and how spent nuclear fuel is handled and stored. For more information about INL research, visit http://www.facebook.com/idahonationallaboratory.

  2. Chaperone Information Reserved Tour

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    to the Seymour Center! Being a chaperone is a great way to experience the Seymour Center and is an important at the Seymour Center, help to assemble students at the yellow kiosk by the public entrance doors to wait respectfully. 3. Your group is participating in a Reserved Tour of the Seymour Center and Long Marine Lab

  3. Advanced Test Reactor Tour

    ScienceCinema (OSTI)

    Miley, Don

    2013-05-28

    The Advanced Test Reactor at Idaho National Laboratory is the foremost nuclear materials test reactor in the world. This virtual tour describes the reactor, how experiments are conducted, and how spent nuclear fuel is handled and stored. For more information about INL research, visit http://www.facebook.com/idahonationallaboratory.

  4. The effect on hospital air-conditioning system operation of soiled system elements

    SciTech Connect (OSTI)

    Olson, R.W.

    1986-01-01

    Air-Conditioning systems in a hospital are a crucial element in maintaining a safe and healthy environment. A clean, adequate supply of air is generally provided in the initial construction of the facility or during space remodeling. The presence of dirt or lint on the elements of the air-conditioning system reduces the available air volume and reduces the effectiveness of the heat exchanger surfaces. The ability of the air system to absorb moisture is also impaired and results in fogging and other moisture problems. This paper reviews (1) methods of identifying the condition and cleanliness of hospital air-conditioning systems; (2) methods of cleaning the elements of the hospital air-conditioning system; and (3) the effects on performance of dirt and lint in hospital air-conditioning systems.

  5. Analysis of a Dedicated Outdoor Air System and Low Temperature Supply Air Conditioning System 

    E-Print Network [OSTI]

    Guang, L.; Li, R.

    2006-01-01

    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...

  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.

    2006-01-01

    As a high-efficiency air conditioning scheme, the variable refrigerant flow (VRF) air-conditioning system is finding its way into medium-sized office buildings. Based on a generic dynamic building energy simulation environment, EnergyPlus, a new...

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

    E-Print Network [OSTI]

    Sun, Yu

    Investigating the Performance of Solar Air Conditioning Motivation/Background Findings Two Building-thermal collectors We investigated 3 types of solar cooling technologies: · Air conditioning consumes 10% of all Team Members: Jing Cong Chen, Rong Xiang, Chen Ma, Wen Jie Li · Results demonstrate that solar air

  8. Use of chlorofluorocarbons in refrigeration, insulation and mobile air conditioning in the USA*

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    . (Keywords: CFCs; refrigeration; air conditioning; insulation; ozone depletion) Utilisation des to this global environmental issue by signing for R22 were obtained from the Air Conditioning and the MontrealFILE COPY DO NOT REMOVE Use of chlorofluorocarbons in refrigeration, insulation and mobile air

  9. Air Distribution and Microenvironment Evaluation of a Desktop Task Conditioning System 

    E-Print Network [OSTI]

    Zheng, G.

    2006-01-01

    equation model and two equation model. At present, k-? model is mostly adopted in indoor airflow[4]. Researches[5-6] obtained reliable results from applying k-? model in numerical simulation of three dimensional airflow field of air conditioning... of the task conditioning system. Key words: task air conditioning; numerical simulation; airflow; HDG; VDG; microenvironment 1. INTRODUCTION Total-volume ventilation and air conditioning of rooms are most used at present. Rooms are used...

  10. Commissioning and Diagnosis of VAV Air-Conditioning Systems 

    E-Print Network [OSTI]

    Qin, J.; Wang, S.; Chan, C.; Xiao, F.

    2006-01-01

    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. 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.

    2006-01-01

    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...

  12. 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

  13. ISSUANCE 2015-12-11: Final Rule Regarding Test Procedures for Small, Large, and Very Large Air-Cooled Commercial Package Air Conditioning and Heating Equipment

    Broader source: Energy.gov [DOE]

    Final Rule Regarding Test Procedures for Small, Large, and Very Large Air-Cooled Commercial Package Air Conditioning and Heating Equipment

  14. Photo Tours Avanish Kushal1

    E-Print Network [OSTI]

    Cortes, Corinna

    Photo Tours Avanish Kushal1 , Ben Self1 , Yasutaka Furukawa1,2 , David Gallup2 , Carlos Hernandez2 user-contributed photos on the Internet. These photo tours take you through each site's most popular is framed as a form of the Traveling Salesman Problem on a graph with photos as nodes and transition costs

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

    E-Print Network [OSTI]

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

    2006-01-01

    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...

  16. Conditions for designing single-mode air-core waveguides in three-dimensional photonic crystals

    E-Print Network [OSTI]

    Fan, Shanhui

    Conditions for designing single-mode air-core waveguides in three-dimensional photonic crystals that allows the design of single-mode air-core waveguides in three-dimensional photonic crystals the regions of maximal electric-field intensity, and placing the air defects to enclose these regions

  17. 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.

    2006-01-01

    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...

  18. Monitoring the Performance of a Residential Central Air Conditioner under Degraded Conditions on a Test Bench 

    E-Print Network [OSTI]

    Palani, M.; O'Neal, D. L.; Haberl, J. S.

    1992-01-01

    This report presents the measured degradation in performance of a residential air conditioning system operating under degraded conditions. Experiments were conducted using a R-22 threeton split-type cooling system with a short-tube orifice expansion...

  19. Improving the Performance of Air-Conditioning Systems in an ASEAN Climate 

    E-Print Network [OSTI]

    Busch, J. F.; Warren, M. L.

    1988-01-01

    This paper describes an analysis of air conditioning performance under hot and humid tropical climate conditions appropriate to the Association of South East Asian Nations (ASEAN) countries. This region, with over 280 million people, has one...

  20. Take a Tour

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDidDevelopment TopMetathesis andSeparationsRelevant toTake a Tour Public

  1. PNNL: About - Virtual Tour

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you notHeatMaRIEdioxideUser Careers/ HumanOurOutreachTour PNNL Virtually

  2. Using upper-air conditions to estimate South Cascade Glacier (U.S.A.) summer balance

    E-Print Network [OSTI]

    Rasmussen, L.A.

    Using upper-air conditions to estimate South Cascade Glacier (U.S.A.) summer balance L. A-air conditions from the NCEP-NCAR Reanalysis database to estimate summer balance of South Cascade Glacier each error. The model relates summer balance linearly to temperature T > 0 C at 2000 m and to snow flux

  3. 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.

    2006-01-01

    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...

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

    E-Print Network [OSTI]

    Sheng, G.; Xie, G.

    2006-01-01

    -conditioning units in residential buildings, and are using the central air-conditioning system in residential buildings. To determine the best air conditioning mode, a residential tower building with 22 layers was chosen for analysis. The advantages and disadvantages...

  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.

    2008-01-01

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

    SciTech Connect (OSTI)

    Not Available

    2010-06-01

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

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

    SciTech Connect (OSTI)

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

    2014-09-01

    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.

  8. 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.

    2013-01-01

    and fault diagnosis of vapor-compression equipment." HVAC&R Research 15.3 (2009): 597-616. (12) N, Lu et al., ?Air Conditioner Compressor Performance Model,? Pac. NW Nat. Lib., Richland, WA, Rep. PNNL-17796, 2008. (13) A. Maier, ?Troubleshooting Thermal...

  9. Retrofitting Air Conditioning and Duct Systems in Hot, Dry Climates

    SciTech Connect (OSTI)

    Shapiro, Carl; Aldrich, Robb; Arena, Lois

    2012-07-01

    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.

  10. Critical analysis of thermodynamic cycle modeling of adsorption cooling systems for light-duty vehicle air conditioning applications

    E-Print Network [OSTI]

    Bahrami, Majid

    -duty vehicle air conditioning applications Amir Sharafian, Majid Bahrami n Laboratory for Alternative Energy Keywords: Adsorption cooling system Vehicle air conditioning Thermodynamic cycle Fully dynamic modeling a b different operating conditions for light-duty vehicles air conditioning applications. Available ACS

  11. Air Conditioning Heating and Refrigeration Institute Comment | Department

    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 on Delicious Rank EERE: Alternative FuelsofProgram:Y-12 Beta-3AUDITLeslie PezzulloAgenda AgendaEnergy Air Barriers

  12. The Use of Conditioned Air for Maintaining Quality of Stored Sorghum Grain. 

    E-Print Network [OSTI]

    Person, Nat K. Jr.; Sorenson, J. W. Jr.; McCune, W. E.; Hobgood, Price

    1967-01-01

    the grain mass. This air must be supplied with properties which will provide a potential driving force, such as enthalpy and vapor pressure, in order for heat and moisture to be transferred. In actual practice, grain temperature is of primary concern... of the entering air since there is only one specific humidity at which the mpor pressures are equal. To maintain moisture equilibrium, the specific humidity must be considered a( one property of the air condition which is required. The other property...

  13. System and method for conditioning intake air to an internal combustion engine

    DOE Patents [OSTI]

    Sellnau, Mark C.

    2015-08-04

    A system for conditioning the intake air to an internal combustion engine includes a means to boost the pressure of the intake air to the engine and a liquid cooled charge air cooler disposed between the output of the boost means and the charge air intake of the engine. Valves in the coolant system can be actuated so as to define a first configuration in which engine cooling is performed by coolant circulating in a first coolant loop at one temperature, and charge air cooling is performed by coolant flowing in a second coolant loop at a lower temperature. The valves can be actuated so as to define a second configuration in which coolant that has flowed through the engine can be routed through the charge air cooler. The temperature of intake air to the engine can be controlled over a wide range of engine operation.

  14. Effect of a Radiant Panel Cooling System on Indoor Air Quality of a Conditioned Space 

    E-Print Network [OSTI]

    Mohamed, E.; Abdalla, K. N.

    2010-01-01

    This paper discusses the effect of a radiant cooling panel system on an indoor air quality (IAQ) of a conditioned space. In this study, ceiling radiant cooling panel, mechanical ventilation with fan coil unit (FCU) and 100% fresh air are used...

  15. Zeolite Membrane Water Vapor Separation for Building Air-Conditioning and Ventilation Systems 

    E-Print Network [OSTI]

    Tanskyi, Oleksandr

    2015-07-17

    -AR0000138 “High-efficiency, on-line membrane air dehumidifier enabling sensible cooling for warm and humid climates”. 2. Naval Facilities Engineering Command (NAVFAC), Pacific Northwest National Laboratory (PNNL), and Advanced Research Projects Agency... Outdoor air PC Polycarbonate PDMS Polydimethylsiloxane PE Polyethylene PES Polyethersulphone PNNL Pacific Northwest National Laboratory PSF Polysulfone PVDF Polyvinylidenefluoride RH Relative humidity SF Separation factor STP Standard conditions...

  16. 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.

    2006-01-01

    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...

  17. 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.

    2004-01-01

    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...

  18. A Field Study on Residential Air Conditioning Peak Loads During Summer in College Station, Texas 

    E-Print Network [OSTI]

    Reddy, T. A.; Vaidya, S.; Griffith, L.; Bhattacharyya, S.; Claridge, D. E.

    1992-01-01

    located on the main campus of Texas A&M university provided the necessary climatic data, especially ambient temperature, relative humidity and solar radiation. The data were analysed to determine the extent to which air-conditioning over...

  19. Parameter Estimation of Dynamic Air-conditioning Component Models Using Limited Sensor Data 

    E-Print Network [OSTI]

    Hariharan, Natarajkumar

    2011-08-08

    This thesis presents an approach for identifying critical model parameters in dynamic air-conditioning systems using limited sensor information. The expansion valve model and the compressor model parameters play a crucial ...

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

    E-Print Network [OSTI]

    Zhang, J.

    2006-01-01

    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...

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

    E-Print Network [OSTI]

    Khalil, E. E.

    2010-01-01

    , but also to provide a complete database of the airflow characteristics in the air-conditioned spaces. Based on this analysis and the vast progress of computers and associated software, the artificial intelligent technique will be a competitor candidate...

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

    E-Print Network [OSTI]

    Zhu, H.

    2006-01-01

    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...

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

    E-Print Network [OSTI]

    Schneider, K.; Thedford, M.

    1986-01-01

    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 ...

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

    E-Print Network [OSTI]

    Chen, Y.; Zhang, Z.

    2006-01-01

    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...

  5. Evaluating Membrane Processes for Air Conditioning; Highlights in Research and Development, NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    2015-06-01

    This NREL Highlight discusses a recent state-of-the-art review of membrane processes for air conditioning that identifies future research opportunities. This highlight is being developed for the June 2015 S&T Alliance Board meeting.

  6. Table HC9.6 Air Conditioning Characteristics by Climate Zone...

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

    17.9 21.7 Have Equipment But Do Not Use it... 1.9 Q 0.4 0.4 0.6 0.3 Air-Conditioning Equipment 2, 3 Central System......

  7. 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......

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

    E-Print Network [OSTI]

    Wetter, Michael

    2010-01-01

    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

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

    E-Print Network [OSTI]

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

    2010-01-01

    , 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...

  10. 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.

    2007-05-01

    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.

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

    E-Print Network [OSTI]

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

    2006-01-01

    algorithm (GA ) has special advantages in tackling this problem based on its inherent characteristics.Genetic algorithm (GA) is adopted and applied in the optimal design of air-conditioning water system in this study. A mathematical model and constrained...

  12. The Coordinated Control of a Central Air Conditioning System Based on Variable Chilled Water Temperature and Variable Chilled Water Flow 

    E-Print Network [OSTI]

    Liu, J.; Mai, Y.; Liu, X.

    2006-01-01

    At present, regulation of water flow by means of pump frequency conversion is one of the major methods for power-saving in central air conditioning systems. In this article, optimization regulation for central air conditioning system on the basis...

  13. Air Conditioning Stall Phenomenon Testing, Model Development, and Simulation

    SciTech Connect (OSTI)

    Irminger, Philip; Rizy, D Tom; Li, Huijuan; Smith, Travis; Rice, C Keith; Li, Fangxing; Adhikari, Sarina

    2012-01-01

    Electric distribution systems are experiencing power quality issues of extended reduced voltage due to fault-induced delayed voltage recovery (FIDVR). FIDVR occurs in part because modern air conditioner (A/C) and heat pump compressor motors are much more susceptible to stalling during a voltage sag or dip such as a sub-transmission fault. They are more susceptible than older A/C compressor motors due to the low inertia of these newer and more energy efficient motors. There is a concern that these local reduced voltage events on the distribution system will become more frequent and prevalent and will combine over larger areas and challenge transmission system voltage and ultimately power grid reliability. The Distributed Energy Communications and Controls (DECC) Laboratory at Oak Ridge National Laboratory (ORNL) has been employed to (1) test, (2) characterize and (3) model the A/C stall phenomenon.

  14. ISSUANCE 2015-12-17: Energy Conservation Program for Certain Industrial Equipment: Energy Conservation Standards for Small, Large, and Very Large Air-Cooled Commercial Package Air Conditioning and Heating Equipment and Commercial Warm Air Furnaces

    Office of Energy Efficiency and Renewable Energy (EERE)

    Energy Conservation Program for Certain Industrial Equipment: Energy Conservation Standards for Small, Large, and Very Large Air-Cooled Commercial Package Air Conditioning and Heating Equipment and Commercial Warm Air Furnaces, Supplemental Notice of Proposed Rulemaking

  15. ISSUANCE 2015-12-17: Energy Conservation Program for Certain Industrial Equipment: Energy Conservation Standards for Small, Large, and Very Large Air-Cooled Commercial Package Air Conditioning and Heating Equipment and Commercial Warm Air Furnaces

    Office of Energy Efficiency and Renewable Energy (EERE)

    Energy Conservation Program for Certain Industrial Equipment: Energy Conservation Standards for Small, Large, and Very Large Air-Cooled Commercial Package Air Conditioning and Heating Equipment and Commercial Warm Air Furnaces

  16. RHEOLOGICAL STUDY OF AN HYDRATE SLURRY FOR AIR CONDITIONNING APPLICATION

    E-Print Network [OSTI]

    Boyer, Edmond

    Saint-Etienne France ABSTRACT Under atmospheric pressure condition and temperatures between 0°C and +12 behaviour. The experimental device is made up of a brushed surface heat exchanger in which the hydrates flow rates and pressure drops measurements. We obtain flow curves of hydrates slurries depending

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

    E-Print Network [OSTI]

    1968-01-01

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

  18. Desiccant Enhanced Evaporative Air-Conditioning (DEVap): Evaluation of a New Concept in Ultra Efficient Air Conditioning

    SciTech Connect (OSTI)

    Kozubal, E.; Woods, J.; Burch, J.; Boranian, A.; Merrigan, T.

    2011-01-01

    NREL has developed the novel concept of a desiccant enhanced evaporative air conditioner (DEVap) with the objective of combining the benefits of liquid desiccant and evaporative cooling technologies into an innovative 'cooling core.' Liquid desiccant technologies have extraordinary dehumidification potential, but require an efficient cooling sink. DEVap's thermodynamic potential overcomes many shortcomings of standard refrigeration-based direct expansion cooling. DEVap decouples cooling and dehumidification performance, which results in independent temperature and humidity control. The energy input is largely switched away from electricity to low-grade thermal energy that can be sourced from fuels such as natural gas, waste heat, solar, or biofuels.

  19. An inverse method for calculation of thermal inertia and heat gain in air conditioning and refrigeration systems

    E-Print Network [OSTI]

    Bahrami, Majid

    An inverse method for calculation of thermal inertia and heat gain in air conditioning for estimation of thermal inertia and heat gain in air conditioning and refrigeration systems using on Ltd. All rights reserved. 1. Introduction Heating, Ventilation, Air Conditioning, and Refrigeration

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

    E-Print Network [OSTI]

    Todd, T. R.

    1986-01-01

    . Unfortunately the latent load required to bring the space back to comfort conditions is usually much higher than the sensible load. Most methods of control are ill suited for this duty. This paper examines the response of various types of air conditioning...

  1. TWIST tours | Argonne National Laboratory

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With LivermoreSustainableDEPARTMENT OFEnergy-8,nTWIST tours TWIST Tour

  2. Hanford Tour Restrictions - Hanford Site

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFESOpportunitiesNERSCGrid-based29Hai AhofBureauTours Hanford Tour

  3. 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.

    2008-01-01

    Henderson (2005) Home air conditioning in Europe – how muchA.A. Pavlova ( 2003). Air conditioning market saturation and+ paper 6,306 Future Air Conditioning Energy Consumption in

  4. Environmental Radioactivity 47 (2000) 189}199 E!ects of air conditioning, dehumidi"cation and

    E-Print Network [OSTI]

    Yu, Peter K.N.

    2000-01-01

    Journal of Environmental Radioactivity 47 (2000) 189}199 E!ects of air conditioning, dehumidi to lower the Rn levels, while air conditioning is the next. Dehumidi"cation provides only a marginal and pressure. 1999 Elsevier Science Ltd. All rights reserved. Keywords: Radon; Thoron; Buildings; Air

  5. 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, Second Fig ABSTRACT. Upper-air conditions archived in the NCEP-NCAR Reanalysis have been used cannot be determined, so the investigation is limited to examining relative changes in those upper air

  6. The Impact of Climate Change on Air QualityRelated Meteorological Conditions in California. Part I: Present Time Simulation Analysis

    E-Print Network [OSTI]

    Chen, Shu-Hua

    The Impact of Climate Change on Air Quality­Related Meteorological Conditions in California. Part I on meteorology and air quality conditions in Cal- ifornia by dynamically downscaling Parallel Climate Model (PCM: Present Time Simulation Analysis ZHAN ZHAO Department of Land, Air, and Water Resources, University

  7. ASHRAE $1000 Scholarship Application (02/26/2013) The Utah Chapter of the American Society of Heating, Refrigerating and Air Conditioning

    E-Print Network [OSTI]

    van den Berg, Jur

    of Heating, Refrigerating and Air Conditioning Engineers is offering multiple $1,000 scholarships automation or controls, heating, ventilating, refrigeration or air conditioning (HVAC) principles are invited

  8. General Guidelines for the Disposal of Refrigerators, Freezers, and other Refrigeration Abandon or dispose of refrigerators, freezers, or window air conditioning units in

    E-Print Network [OSTI]

    Cina, Jeff

    not Abandon or dispose of refrigerators, freezers, or window air conditioning units in dumpsters or in common working and nonworking household refrigeration units (refrigerators, freezers, window air conditioning

  9. 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.

    2006-01-01

    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 ...

  10. 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

    1995-01-01

    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...

  11. 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.

    2008-01-01

    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...

  12. 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

  13. "Table HC13.6 Air Conditioning Characteristics by South Census...

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

    "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...

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

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

    "Type 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...

  15. "Table HC12.6 Air Conditioning Characteristics by Midwest Census...

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

    "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...

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

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

    Air-Conditioning 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"...

  17. "Table HC10.6 Air Conditioning Characteristics by U.S. Census...

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

    "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...

  18. "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...

  19. "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...

  20. "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...

  1. "Table HC15.6 Air Conditioning Characteristics by Four Most...

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

    "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...

  2. "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...

  3. "Table HC14.6 Air Conditioning Characteristics by West Census...

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

    "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...

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

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

    "Type 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...

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

    SciTech Connect (OSTI)

    Not Available

    1994-09-01

    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.

  6. 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.

    2006-01-01

    that are energy- saving and environment-friendly. A liquid desiccant air conditioning system is among them, as it has a tremendous ability for power storage and low requirements for heat resources. Heat with low temperatures, such as excess heat, waste heat...

  7. The Influence of Air-Conditioning Efficiency in the Peak Load Demand for Kuwait 

    E-Print Network [OSTI]

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

    2007-01-01

    A model co-relating the peak load demand of a utility with the allowable power rating (PR) of air-conditioning (AC) systems has been developed in this paper through a well defined methodology. The model is capable to predict the extent of allowable...

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

    Office of Energy Efficiency and Renewable Energy (EERE)

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

  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.

    2006-01-01

    -savings at this area. Namely, we may use the combination of evaporative cooling, dehumidifier and mechanical cooling to save energy for air-conditioning....

  10. 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.

    1993-05-01

    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.

  11. Registration Starts Soon for Hanford's Two Annual Public Tour...

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

    B Reactor tours focus on Hanford's role in the top secret Manhattan Project during World War II. All tours begin and end at the B Reactor Tour Headquarters at 2000 Logston Blvd. in...

  12. Effect of Intake Air Filter Condition on Light-Duty Gasoline Vehicles

    SciTech Connect (OSTI)

    Thomas, John F; Huff, Shean P; West, Brian H; Norman, Kevin M

    2012-01-01

    Proper maintenance can help vehicles perform as designed, positively affecting fuel economy, emissions, and the overall drivability. This effort investigates the effect of one maintenance factor, intake air filter replacement, with primary focus on vehicle fuel economy, but also examining emissions and performance. Older studies, dealing with carbureted gasoline vehicles, have indicated that replacing a clogged or dirty air filter can improve vehicle fuel economy and conversely that a dirty air filter can be significantly detrimental to fuel economy. The effect of clogged air filters on the fuel economy, acceleration and emissions of five gasoline fueled vehicles is examined. Four of these were modern vehicles, featuring closed-loop control and ranging in model year from 2003 to 2007. Three vehicles were powered by naturally aspirated, port fuel injection (PFI) engines of differing size and cylinder configuration: an inline 4, a V6 and a V8. A turbocharged inline 4-cylinder gasoline direct injection (GDI) engine powered vehicle was the fourth modern gasoline vehicle tested. A vintage 1972 vehicle equipped with a carburetor (open-loop control) was also examined. Results reveal insignificant fuel economy and emissions sensitivity of modern vehicles to air filter condition, but measureable effects on the 1972 vehicle. All vehicles experienced a measured acceleration performance penalty with clogged intake air filters.

  13. Model Based Commissioning Tool for Air-Conditioning Distribution Systems-APCBC 

    E-Print Network [OSTI]

    Yoshida, H.; Noda, T.

    2014-01-01

    , Beijing, China ESL-IC-14-09-06 Proceedings of the 14th International Conference for Enhanced Building Operations, Beijing, China, September 14-17, 2014 1. Issues 2. Simulation Model of Distribution System 3. Example of VWV System 4. Example of VAV System... 5. Conclusions 2 ESL-IC-14-09-06 Proceedings of the 14th International Conference for Enhanced Building Operations, Beijing, China, September 14-17, 2014 ? Energy consumption of air and water distribution in air- conditioning systems reaches up to 12...

  14. Singapore education tour.......2 Scholarly publishing...............3

    E-Print Network [OSTI]

    Minnesota, University of

    · Singapore education tour.......2 · Scholarly publishing...............3 · Fall seminars representatives from the public and private sectors to address the economics of sustainable practices

  15. Jefferson Lab Visitor's Center - Schedule a Tour

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

    the accelerator, experimental halls and FEL. Tour groups are assigned one radiation dosimeter for every five visitors. 12000 Jefferson Avenue, Newport News, VA 23606 Phone: (757)...

  16. 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.

    2006-01-01

    -conditioning system of variable frequency technology can achieve the effect of energy conservation. In this article, we analyze the application of the VRV air conditioning system heat recovery series in the construction inner zone and its energy saving characteristics...

  17. Assessment of adsorber bed designs in waste-heat driven adsorption cooling systems for vehicle air conditioning and refrigeration

    E-Print Network [OSTI]

    Bahrami, Majid

    ) for vehicle air conditioning and refrigeration (A/C­R) applications. Adsorber beds should be specificallyAssessment of adsorber bed designs in waste-heat driven adsorption cooling systems for vehicle air conditioning and refrigeration Amir Sharafian, Majid Bahrami n Laboratory for Alternative Energy Conversion

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

    SciTech Connect (OSTI)

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

    2014-09-01

    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.

  19. 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

    2011-07-31

    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.

  20. 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

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

    SciTech Connect (OSTI)

    Not Available

    2014-04-01

    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.

  2. Thermodynamic model of a thermal storage air conditioning system with dynamic behavior

    SciTech Connect (OSTI)

    Fleming, E; Wen, SY; Shi, L; da Silva, AK

    2013-12-01

    A thermodynamic model was developed to predict transient behavior of a thermal storage system, using phase change materials (PCMs), for a novel electric vehicle climate conditioning application. The main objectives of the paper are to consider the system's dynamic behavior, such as a dynamic air flow rate into the vehicle's cabin, and to characterize the transient heat transfer process between the thermal storage unit and the vehicle's cabin, while still maintaining accurate solution to the complex phase change heat transfer. The system studied consists of a heat transfer fluid circulating between either of the on-board hot and cold thermal storage units, which we refer to as thermal batteries, and a liquid-air heat exchanger that provides heat exchange with the incoming air to the vehicle cabin. Each thermal battery is a shell-and-tube configuration where a heat transfer fluid flows through parallel tubes, which are surrounded by PCM within a larger shell. The system model incorporates computationally inexpensive semianalytic solution to the conjugated laminar forced convection and phase change problem within the battery and accounts for airside heat exchange using the Number of Transfer Units (NTUs) method for the liquid-air heat exchanger. Using this approach, we are able to obtain an accurate solution to the complex heat transfer problem within the battery while also incorporating the impact of the airside heat transfer on the overall system performance. The implemented model was benchmarked against a numerical study for a melting process and against full system experimental data for solidification using paraffin wax as the PCM. Through modeling, we demonstrate the importance of capturing the airside heat exchange impact on system performance, and we investigate system response to dynamic operating conditions, e.g., air recirculation. (C) 2013 Elsevier Ltd. All rights reserved.

  3. Hanford Site Tours - Hanford Site

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFESOpportunitiesNERSCGrid-based29Hai Ahof 2009videoTours Hanford

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

    E-Print Network [OSTI]

    Kühnl-Kinel, J

    2000-01-01

    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.

  5. TOUR: Time-sensitive Opportunistic Utility-TOUR: Time-sensitive Opportunistic Utility-TOUR: Time-sensitive Opportunistic Utility-TOUR: Time-sensitive Opportunistic Utility-based Routing in Delay Tolerant Networksbased Routing in Delay Tolerant Networksbas

    E-Print Network [OSTI]

    Wu, Jie

    TOUR: Time-sensitive Opportunistic Utility-TOUR: Time-sensitive Opportunistic Utility-TOUR: Time-sensitive Opportunistic Utility-TOUR: Time-sensitive Opportunistic Utility- based Routing in Delay Tolerant Networksbased on utility-based routingIntroduction on utility-based routingIntroduction on utility-based routing

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

    DOE Patents [OSTI]

    Ko, Suk M. (Huntsville, AL)

    1980-01-01

    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.

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

    SciTech Connect (OSTI)

    Zhang, Wei; Lian, Jianming; Chang, Chin-Yao; Kalsi, Karanjit

    2013-06-21

    Demand response is playing an increasingly important role in the efficient and reliable operation of the electric grid. Modeling the dynamic behavior of a large population of responsive loads is especially important to evaluate the effectiveness of various demand response strategies. In this paper, a highly-accurate aggregated model is developed for a population of air conditioning loads. The model effectively includes statistical information of the population, systematically deals with load heterogeneity, and accounts for second-order dynamics necessary to accurately capture the transient dynamics in the collective response. Based on the model, a novel aggregated control strategy is designed for the load population under realistic conditions. The proposed controller is fully responsive and achieves the control objective without sacrificing end-use performance. The proposed aggregated modeling and control strategies are validated through realistic simulations using GridLAB-D. Extensive simulation results indicate that the proposed approach can effectively manage a large number of air conditioning systems to provide various demand response services, such as frequency regulation and peak load reduction.

  8. Changes in the U.S. Domestic Group Tour Market 

    E-Print Network [OSTI]

    Purifoy, Melanie

    2011-08-04

    specific information needs and CVBs and suppliers should accommodate those needs. Third, the path to group tour planners leads through consumers. Fourth, there is a focus on emerging markets such as student groups and soft adventure tours. Fifth, group... tours expect special accommodations from suppliers such as group rates, motorcoach parking and behind the scenes tours. Finally, CVBs are a key player in the iv group tour market. While the results from this study provided important insights...

  9. Seventh Annual Biofuels Science and Sustainability Tour

    Office of Energy Efficiency and Renewable Energy (EERE)

    The U.S. Department of Energy’s Bioenergy Technologies Office Senior Executive Advisor Harry Baumes and Feedstocks Technology Manager Mark Elless were among Congressional, federal agency, White House, and gubernatorial staff who participated in the 7th Annual Biofuels Science and Sustainability Tour. From Aug. 17–19, 2015, the tour visited several bioenergy farms, facilities, research centers, and end users across the state of Iowa. The tour provided participants with the opportunity to experience the bioenergy industry hands-on in an interactive manner.

  10. Fuel-Free Compressed-Air Energy Storage: Fuel-Free, Ubiquitous Compressed-Air Energy Storage and Power Conditioning

    SciTech Connect (OSTI)

    2010-09-13

    GRIDS Project: General Compression has developed a transformative, near-isothermal compressed air energy storage system (GCAES) that prevents air from heating up during compression and cooling down during expansion. When integrated with renewable generation, such as a wind farm, intermittent energy can be stored in compressed air in salt caverns or pressurized tanks. When electricity is needed, the process is reversed and the compressed air is expanded to produce electricity. Unlike conventional compressed air energy storage (CAES) projects, no gas is burned to convert the stored high-pressure air back into electricity. The result of this breakthrough is an ultra-efficient, fully shapeable, 100% renewable and carbon-free power product. The GCAES™ system can provide high quality electricity and ancillary services by effectively integrating renewables onto the grid at a cost that is competitive with gas, coal and nuclear generation.

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

    E-Print Network [OSTI]

    Berglof, K.

    2010-01-01

    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...

  12. 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.

    2010-01-01

    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...

  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.

    2006-01-01

    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 ...

  14. 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

  15. Tours

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired Solar FuelTechnologyTel:FebruaryEIA's Today8Topo II:LAr S cin)lla)on

  16. Tours

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired Solar FuelTechnologyTel:FebruaryEIA's Today8Topo II:LAr S

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

    SciTech Connect (OSTI)

    Fang, Guiyin; Hu, Hainan; Liu, Xu

    2010-09-15

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

  18. Virtual tour: INL's space battery facility

    SciTech Connect (OSTI)

    Johnson, Steve

    2011-01-01

    This virtual tour shows how INL fuels and tests nuclear power systems for deep space missions. To learn more about INL's contribution to the Mars Science Laboratory, visit http://www.inl.gov/marsrover.

  19. Blue Ribbon Commission Tour of Hanford Site

    ScienceCinema (OSTI)

    Paul Saueressig

    2010-09-01

    The Blue Ribbon Commission on America's Nuclear Future toured the Department of Energy's Hanford Site on July 14, 2010. Commission members, invited guests, and members of the public visited facilities that store high-level, radioactive waste.

  20. Virtual tour: INL's space battery facility

    ScienceCinema (OSTI)

    Johnson, Steve

    2013-05-28

    This virtual tour shows how INL fuels and tests nuclear power systems for deep space missions. To learn more about INL's contribution to the Mars Science Laboratory, visit http://www.inl.gov/marsrover.

  1. Preproposal Conference & Site Tour | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    the Offeror intent form identified at Section L, L-33, Offeror Intention to Submit an Offer may attend the briefing and tour. To allow time for security clearance and other...

  2. Blue Ribbon Commission Tour of Hanford Site

    SciTech Connect (OSTI)

    Paul Saueressig

    2010-07-14

    The Blue Ribbon Commission on America's Nuclear Future toured the Department of Energy's Hanford Site on July 14, 2010. Commission members, invited guests, and members of the public visited facilities that store high-level, radioactive waste.

  3. Reproducibility of the airway response to an exercise protocol standardized for intensity, duration, and inspired air conditions, in subjects with symptoms suggestive of asthma.

    E-Print Network [OSTI]

    2010-01-01

    air conditions, in subjects with symptoms suggestive ofair conditions, in subjects with symptoms suggestive ofhas not been reported in subjects being evaluated with mild

  4. Gray-box model for energy-efficient selection of set point hysteresis in heating, ventilation, air conditioning, and refrigeration controllers

    E-Print Network [OSTI]

    Bahrami, Majid

    Energy efficiency Gray-box model a b s t r a c t Many heating, ventilation, air conditioning by Heating, Ventilation, Air Conditioning, and Refrigeration (HVAC­R) systems [1]. HVAC­R energy consumption, for instance, may use up to 80% of the total energy consumed in the supermarket [3]. Moreover, Air Conditioning

  5. Modeling dispersions in initial conditions for air-launched rockets and their effect on vehicle performance

    E-Print Network [OSTI]

    Beerer, Ingrid Mary

    2013-01-01

    Growing interest in air-launched rockets as a method for lofting satellites into orbit motivates the need to investigate the unique challenges that air launch presents. This thesis explores how uncertainties in an air-launched ...

  6. Advantages of enhanced synchronous motors in heating, refrigerating, and air conditioning applications

    SciTech Connect (OSTI)

    Morash, R.T. [Precise Power Corp., Bradenton, FL (United States)

    1998-12-31

    A new synchronous motor is a high-efficiency AC machine that has a low starting current. It may be used for conventional loads and also to start high inertia loads, delivering a constant torque during starting. Acceleration to synchronous speed can be allowed to take several minutes, if necessary, because the low starting current precludes excessive heating in the motor. Some of these motors are constructed with integral high inertia rotors that act as flywheels. These synchronous motors can ride through power sags and interruptions up to 30 seconds or more while still delivering useful load to pumps, fans, blowers, and compressors. The motors also restart instantly and resynchronize when utility power recovers. The motor can be useful in many heating, ventilating, and air-conditioning (HVAC) applications including those where machines and processes might otherwise be forced to shut down during momentary power interruptions.

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

    SciTech Connect (OSTI)

    Ushimaru, Kenji.

    1990-08-01

    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.

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

    SciTech Connect (OSTI)

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

    2013-10-01

    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.

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

    SciTech Connect (OSTI)

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

    2013-07-01

    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.

  10. Expert system for the design of heating, ventilating, and air-conditioning systems. Master's thesis

    SciTech Connect (OSTI)

    Camejo, P.J.

    1989-12-01

    Expert systems are computer programs that seek to mimic human reason. An expert system shelf, a software program commonly used for developing expert systems in a relatively short time, was used to develop a prototypical expert system for the design of heating, ventilating, and air-conditioning (HVAC) systems in buildings. Because HVAC design involves several related knowledge domains, developing an expert system for HVAC design requires the integration of several smaller expert systems known as knowledge bases. A menu program and several auxiliary programs for gathering data, completing calculations, printing project reports, and passing data between the knowledge bases are needed and have been developed to join the separate knowledge bases into one simple-to-use program unit.

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

    SciTech Connect (OSTI)

    Not Available

    2012-07-01

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

  12. Energy Secretary Chu to Tour GE Global Research Advanced Manufacturing...

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

    Energy Secretary Chu to Tour GE Global Research Advanced Manufacturing Lab Energy Secretary Chu to Tour GE Global Research Advanced Manufacturing Lab May 24, 2012 - 10:54am Addthis...

  13. PPPL Offers Twice-Monthly Public Tours | Princeton Plasma Physics...

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

    up with a plasma ball during a PPPL tour. PPPL Deputy Director for Operations Adam Cohen leads visitors on a tour of the QUASAR stellarator. (Photo by Photo by Elle Starkman...

  14. Secretary Chu Tours the 2013 Washington Auto Show | Department...

    Energy Savers [EERE]

    Tours the 2013 Washington Auto Show Secretary Chu Tours the 2013 Washington Auto Show January 31, 2013 - 5:04pm Addthis 1 of 10 While at the Washington Auto Show, Energy Secretary...

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

    SciTech Connect (OSTI)

    Wetter, Michael

    2009-06-17

    This paper presents a freely available Modelica library for building heating, ventilation and air conditioning systems. The library is based on the Modelica.Fluid library. It has been developed to support research and development of integrated building energy and control systems. The primary applications are controls design, energy analysis and model-based operation. The library contains dynamic and steady-state component models that are applicable for analyzing fast transients when designing control algorithms and for conducting annual simulations when assessing energy performance. For most models, dimensional analysis is used to compute the performance for operating points that differ from nominal conditions. This allows parameterizing models in the absence of detailed geometrical information which is often impractical to obtain during the conceptual design phase of building systems. In the first part of this paper, the library architecture and the main classes are described. In the second part, an example is presented in which we implemented a model of a hydronic heating system with thermostatic radiator valves and thermal energy storage.

  16. HOW TO HEAT AND COOL A HOME WITH 400 CFM SUPPLY AIR AND KEEP THE DUCTS IN THE CONDITIONED SPACE

    SciTech Connect (OSTI)

    ANDREWS,J.W.

    1999-05-01

    A design strategy is presented that can enable a typical new home to be heated, cooled, and ventilated with less than 400 cfm of delivered air. The strategy has three major elements. First, peak cooling loads are minimized by using good available technologies for the envelope, with emphasis on minimizing heat gains through the windows. Second, the envelope is designed to have very low natural air leakage rates, such that all the ventilation air can be drawn in at one point and passed over the cooling coil before it is mixed with the house air. This permits a significant portion of the cooling load to be met at an air flow rate of {approximately}200 cubic feet per minute (cfm) per ton, compared with the typical 400 cfm per ton in standard air-conditioning systems. Third, by reducing the amount of supply air needed to meet the envelope loads, the required size of ductwork is reduced, making it easier to locate the ducts within the conditioned space. This reduces duct loads to zero, completing the three-part energy conserving strategy.

  17. With harmful ozone concentrations tied to meteorological conditions, EPA investigates the U.S. air quality implications of a changing climate.

    E-Print Network [OSTI]

    Goldstein, Allen

    With harmful ozone concentrations tied to meteorological conditions, EPA investigates the U.S. air?" noting that ". . . changing climatic conditions could significantly affect the air quality in some quality implications of a changing climate. D iscussion of the potential sensitivity of air quality

  18. P:\\Policy & Procedures\\PP\\PP#9-Building Tours.doc Physical Plant

    E-Print Network [OSTI]

    Fernandez, Eduardo

    conditions encountered as they relate to maintenance and custodial operations and as they relate: BUILDING TOURS OBJECTIVE AND PURPOSE: To establish a level of quality in the maintenance and custodial care of University Facilities and to foster communication between the maintenance and custodial functions

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

    SciTech Connect (OSTI)

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

    1997-12-01

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

  20. ARCHITECTURE The tour will take an hour to walk.

    E-Print Network [OSTI]

    Boucherie, Richard J.

    ARCHITECTURE & ART The tour will take an hour to walk. Refreshments during your tour are available 12 1518 20 27 28 31 34 architecture & art a walking tour of the campus colophon Extra info1 Het. Timmerman, , 2011. See also: www.groteA.nl The Art & Architecture Route is a publication of December 2013

  1. Bicycles and Left-Right Tours in Locally Finite Graphs

    E-Print Network [OSTI]

    Diestel, Reinhard

    Bicycles and Left-Right Tours in Locally Finite Graphs von Melanie Win Myint, M. S. Dem Department-Right Tours 29 6 LRTs Generate the Bicycle Space 43 7 The ABL Planarity Criterion 53 8 Pedestrian Graphs 69 bicycles and some other concepts they relate to, such as left- right tours and pedestrian graphs

  2. 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.

    2011-12-31

    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.

  3. Investigation of techniques to improve continuous air monitors under conditions of high dust loading in environmental setting

    SciTech Connect (OSTI)

    Huang, Suilou; Schery, Stephen D.; Rodgers, John

    2000-06-01

    Improvement in understanding the deposition of ambient dust particles on environmental continuous air monitor (ECAM) filters, reduction of the alpha-particle interference of radon progeny and other radioactive aerosols in different particle size ranges on filters, and development of ECAMs with increased sensitivity under dusty outdoor conditions.

  4. 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.

    2009-01-01

    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...

  5. 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.

    2006-01-01

    in winter and summer. Taking a practical project as example, this paper analyzes the energy consumption of a VAV air conditioning system that is shared by inner zone and exterior zone. The paper also points out the serious problem of useless energy...

  6. 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

    air conditioning systems used in the automotive industry are based on vapour-compression refrigeration major challenge facing the automotive industry. Currently, R-134a is being used, almost in all vehicles. Perform a literature review and describe the state-of-the-art for A/C in automotive industry, for both

  7. Using upper-air conditions to estimate South Cascade Glacier (Washington, U.S.A.) summer balance

    E-Print Network [OSTI]

    Rasmussen, L.A.

    Using upper-air conditions to estimate South Cascade Glacier (Washington, U.S.A.) summer balance balance of South Cascade Glacier, Washington, U.S.A., each year over 1959^99. The rms error, 0.30mw.e. (r2 ^ 0.71), is com- parable to measurement error. The model relates summer balance linearly

  8. INFLUENCE OF DESIGN AND OPERATING CONDITIONS ON UNDERFLOOR AIR DISTRIBUTION (UFAD) SYSTEM PERFORMANCE

    E-Print Network [OSTI]

    2012-01-01

    with thermal decay and stratification. The development ofUFAD systems, room air stratification and thermal decay (Leeno thermal decay) UF – Increased stratification + common

  9. 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]

    2012-01-01

    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

  10. 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]

    2014-01-01

    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

  11. Proposal for the award of a contract for the supply and installation of heating, ventilation and air conditioning facilities for the new "Polymer Laboratory" (Building 771)

    E-Print Network [OSTI]

    2015-01-01

    Proposal for the award of a contract for the supply and installation of heating, ventilation and air conditioning facilities for the new "Polymer Laboratory" (Building 771)

  12. 2014-06-23 Issuance: Energy Conservation Standards for Walk-in Coolers and Freezers; Air-Conditioning, Heating, & Refrigeration Institute Petition for Reconsideration

    Office of Energy Efficiency and Renewable Energy (EERE)

    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.

  13. Sustainability Tour 2 0 0 9 --2010

    E-Print Network [OSTI]

    Bertini, Robert L.

    Campus Sustainability Tour 2 0 0 9 -- 2010 At PSU, we describe sustainability as giving present will be achieved for a bal- anced society. Resources: The PSU EcoWiki - www.ecowiki.pdx.edu PSU Sustainability - www.pdx.edu/sustainability PSU Bicycle Cooperative - www.bikeshop.pdx.edu Tri-Met - www

  14. Florida Atlantic University Study Tour to Tanzania

    E-Print Network [OSTI]

    Fernandez, Eduardo

    1 Florida Atlantic University Study Tour to Tanzania WST 4417/6934 Gender, Culture, and Social Change in Africa: A Case Study of Tanzania May 9th -May 25th , 2015 Course Instructor: Dr. Josephine the Universities of Tanzania will present some guest lectures and lead class discussions. Topics to be covered

  15. Case Study: The Effective Use of an Extensive Logical rule Based Data Analytics Approach in Establishing Root Cause of Performance Issues in Widespread Deployments of Unitary Space Air Conditioning Units 

    E-Print Network [OSTI]

    Brady, N.

    2013-01-01

    Today a significant percentage of office spaces are air conditioned using widely deployed unitary systems, either Fan Coil Units (FCU) or Variable Air Volume (VAV) boxes, to achieve high degrees of air conditioned zonal control. However establishing...

  16. 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.

    2006-01-01

    Due to such disadvantages as large air duct and high energy consumption of the current all- outdoor air evaporative cooling systems used in the dry region of Northwest China, as well as the superiority of the ceiling cooling system in improving...

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

    E-Print Network [OSTI]

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

    2006-01-01

    To address the issue of the substantial energy cost and operating cost of an all-return air system for a clean room, we changed the former system to a 2nd return air system. With the newest building energy simulation program, Energy Plus, we...

  18. Influence of Fault and Optimization of PID Parameters in Building Air-Conditioning System 

    E-Print Network [OSTI]

    Kuniyoshi, K.; Akashi, Y.; Sumiyoshi, D.; Song, Y.

    2005-01-01

    [s] APPROPRIATE 1 30 FAULT 20 30 Table 2. PID Parameters Of VWV 2-way Valve For Experiment Figure 5. Experiment Results 0 5 10 15 20 25 (a)Outside & room temp. Te m p. [d eg .C ] 10 20 30 40 500 60 Elapsed time[min] Room... opening deg.(fault case) 10 20 30 40 50 60 Elapsed time[min] 30 35 40 (c)Supply air temp. Te m p. [d eg .C ] 0 Supply air temp.(appropriate case) Supply air temp.(fault case) 10 20 30 40 50 60 Elapsed time[min] 0 20 40 60 80 100 (d...

  19. Numerical Analysis of the Channel Wheel Fresh Air Ventilator Under Frosting Conditions 

    E-Print Network [OSTI]

    Gao, B.; Dong, Z.; Cheng, Z.; Luo, E.

    2006-01-01

    As new equipment, the channel wheel fresh air ventilator has become increasingly popular in recent years. However, when such equipment is operated under low ambient temperature in the freezing area in winter, the formation of frost on the outdoor...

  20. Comparison of Zone Cooling Load for Radiant and All-Air Conditioning Systems

    E-Print Network [OSTI]

    Feng, Jingjuan; Schiavon, Stefano; Bauman, Fred

    2012-01-01

    Radiant Heating and Cooling Systems. Olesen, B. (2012). "surface heating and cooling systems: . Brussels, EuropeanIn the case of the all-air system, cooling load matches the

  1. 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.

    2006-01-01

    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...

  2. Optimization of airport terminal-area air traffic operations under uncertain weather conditions

    E-Print Network [OSTI]

    Pfeil, Diana Michalek

    2011-01-01

    Convective weather is responsible for large delays and widespread disruptions in the U.S. National Airspace System, especially during summer. Although Air Traffic Flow Management algorithms exist to schedule and route ...

  3. A Study to Determine the Energy Impact of Adding Polarshield to Air Conditioning Systems 

    E-Print Network [OSTI]

    Cromer, C. J.

    2001-01-01

    PolarShield is a polarized refrigerant compressor oil additive containing the a-olefin molecule which is a commonly used oil additive to reduce high pressure viscosity breakdown. The manufacturers of this air conditioner compressor oil additive (COA...

  4. Study of Air Ingress Across the Duct During the Accident Conditions

    SciTech Connect (OSTI)

    Hassan, Yassin

    2013-05-06

    The goal of this project is to study the fundamental physical phenoena associated with air ingress in very high temperature reactors (VHTRs). Air ingress may occur due to a nupture of primary piping and a subsequent breach in the primary pressure boundary in helium-cooled and graphite-moderated VHTRs. Significant air ingress is a concern because it introduces potential to expose the fuel, graphite support rods, and core to a risk of severe graphite oxidation. Two of the most probable air ingress scenarios involve rupture of a control rod or fuel access standpipe, and rupture in the main coolant pipe on the lower part of the reactor pressure vessel. Therefor, establishing a fundamental understanding of air ingress phenomena is critical in order to rationally evaluate safety of existing VHTRs and develop new designs that mimimize these risks. But despite this importance, progress toward development these predictive capabilities has been slowed by the complex nature of the underlaying phenomena. The combination of interdiffusion among multiple species, molecular diffusion, natural convection, and complex geometries, as well as the multiple chemical reactions involved, impose significant roadblocks to both modeling and experiment design. The project team will employ a coordinated experimental and computational effort that will help gain a deeper understanding of multiphased air ingress phenomena. THis project will enhance advanced modeling and simulation methods, enabling calculation of nuclear power plant transients and accident scenarios with a high degree of confidence. The following are the project tasks: Perform particle image velocimetry measurement of multiphase air ingresses Perform computational fluid dynamics analysis of air ingress phenomena

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

    E-Print Network [OSTI]

    Kawano,M.

    2014-01-01

    ? [k W h] E le ct ri c p o w e r co n su m p ti o n ? kW h /y e a r? 12,000 10,0 8,0 6,0 4,0 2,0 0 Outdoor air-conditioning unit Indoor unit Outdoor unit A Humidity Control unit Indoor unit Outdoor unit Outdoor air-conditioning unit A Humidity... Control unit Indoor unit Outdoor unit Developed system onventional system E le ct ri c p o w e r co n su m p ti o n ? kW h /m o n th ? 1,400 1,200 1,000 800 600 400 200 0 E le ct ri c p o w e r co n su m p ti o n ? kW h /m o n th ? 1,400 1,200 1,000 800...

  6. 3-50 A classroom is to be air-conditioned using window air-conditioning units. The cooling load is due to people, lights, and heat transfer through the walls and the windows. The number of 5-kW window air

    E-Print Network [OSTI]

    Bahrami, Majid

    3-19 3-50 A classroom is to be air-conditioned using window air-conditioning units. The cooling.17 3-51 The lighting energy consumption of a storage room is to be reduced by installing motion sensors lamps)(60 W/lamp )(3285 hours/year) = 4730 kWh/year Cost Savings = (Energy Savings)(Unit cost of energy

  7. 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.

    2014-01-01

    EFFICIENCY DIAGNOSIS AND POTENTIAL ANALYSIS OF ENERGY CONSUMPTION FROM AIR- CONDITIONING SYSTEM Lecturer : Rong-Jiang Ma School of Mechanical Engineering, Southwest Jiaotong University Beijing, China September 14-17, 2014 ICEBO2014 - 2014 International... Conference for Enhanced Building Operations ESL-IC-14-09-21a Proceedings of the 14th International Conference for Enhanced Building Operations, Beijing, China, September 14-17, 2014 Outline ICEBO2014 - 2014 International Conference for Enhanced Building...

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

    SciTech Connect (OSTI)

    NONE

    1996-01-30

    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.

  9. 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.

    1993-05-01

    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.

  10. Secretary Chu to Tour Sandia National Laboratories and Highlight...

    Energy Savers [EERE]

    National Laboratories and Highlight President Obama's State of the Union Blueprint to Build an Economy that Lasts Secretary Chu to Tour Sandia National Laboratories and...

  11. Sandia gives Japanese elected official a tour of Z machine |...

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

    gives Japanese elected official a tour of Z machine | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing...

  12. SLIDESHOW: Secretary Moniz Tours 2014 Washington Auto Show

    Broader source: Energy.gov [DOE]

    A slideshow featuring highlights from Secretary Moniz's tour of the 2014 Washington Auto Show is currently posted on the Energy Department's blog.

  13. National Aeronautics and Space Administration COMET NUCLEUS TOUR

    E-Print Network [OSTI]

    Rhoads, James

    National Aeronautics and Space Administration CONTOUR COMET NUCLEUS TOUR MISHAP INVESTIGATION BOARD not constitute an official endorsement, either expressed or implied, by the National Aeronautics and Space

  14. Direct-Expansion Air-Conditioning System Performance in Low Humidity Applications: A Case Study 

    E-Print Network [OSTI]

    Khattar, M. K.; Keebaugh, D.

    1987-01-01

    . Historic energy-use data and field-measured performance data are analyzed. The importance of certain design and operating parameters such as indoor airflow quantity, cooling coil apparatus dew-point temperature and the air-handling unit's fan operating...

  15. A Cinematic Grand Tour of Sicily: Irony, Memory and Metamorphic Desire from Goethe to Tornatore

    E-Print Network [OSTI]

    Marrone, Gaetana

    2010-01-01

    A Cinematic Grand Tour of Sicily: Irony, Memory, andlike, everywhere. 4 This cinematic grand tour is an album ofvarious social aims. A cinematic example of such a diversion

  16. DOE Announces Additional Tour Seats Available: Tours of B Reactor at the Hanford Site Begin and End in Richland, Wash.

    Broader source: Energy.gov [DOE]

    RICHLAND, Wash. – The U.S. Department of Energy (DOE) has made additional seats available for tours of the B Reactor National Historic Landmark this July and August.

  17. Comparison of Zone Cooling Load for Radiant and All-Air Conditioning Systems

    E-Print Network [OSTI]

    Feng, Jingjuan; Schiavon, Stefano; Bauman, Fred

    2012-01-01

    conditions, therefore, no heat transmission through buildingto the conductive heat transmission through the building3-5. Table 3 compares the heat transmission through building

  18. Materials and Fuels Complex Tour

    ScienceCinema (OSTI)

    Miley, Don

    2013-05-28

    The Materials and Fuels Complex at Idaho National Laboratory is home to several facilities used for the research and development of nuclear fuels. Stops include the Fuel Conditioning Facility, the Hot Fuel Examination Facility (post-irradiation examination), and the Space and Security Power System Facility, where radioisotope thermoelectric generators (RTGs) are assembled for deep space missions. You can learn more about INL research programs at http://www.facebook.com/idahonationallaboratory.

  19. Materials and Fuels Complex Tour

    SciTech Connect (OSTI)

    Miley, Don

    2011-01-01

    The Materials and Fuels Complex at Idaho National Laboratory is home to several facilities used for the research and development of nuclear fuels. Stops include the Fuel Conditioning Facility, the Hot Fuel Examination Facility (post-irradiation examination), and the Space and Security Power System Facility, where radioisotope thermoelectric generators (RTGs) are assembled for deep space missions. You can learn more about INL research programs at http://www.facebook.com/idahonationallaboratory.

  20. Investigation of Techniques to Improve Continuous Air Monitors Under Conditions of High Dust Loading in Environmental Settings

    SciTech Connect (OSTI)

    Suilou Huang; Stephen D. Schery; John C. Rodgers

    2002-07-23

    A number of DOE facilities, such as the Los Alamos National Laboratory (LANL) and the Waste Isolation Pilot Plant (WIPP), use alpha-particle environmental continuous air monitors (ECAMs) to monitor air for unwanted releases of radioactive aerosols containing such materials as plutonium and uranium. High sensitivity, ease of operation, and lack of false alarms are all important for ECAMs. The object of the project was to conduct investigations to improve operation of ECAMs, particularly under conditions where a lot of nonradioactive dust may be deposited on the filters (conditions of high dust loading). The presence of such dust may increase the frequency with which filters must be changed and can lead to an increased incidence of false alarms due to deteriorated energy resolution and response specificity to the radionuclides of interest. A major finding of the investigation, not previously documented, was that under many conditions thick layers of underlying nonradioactive dust do not decrease energy resolution and specificity for target radionuclides if the radioactive aerosol arrives as a sudden thin burst deposit, as commonly occurs in the early-warning alarm mode. As a result, operators of ECAMs may not need to change filters as often as previously thought and have data upon which to base more reliable operating procedures.

  1. The design and implementation of Alan Touring, the Campus Tourbot

    E-Print Network [OSTI]

    Johnson, Collin Eugene

    2008-01-01

    Alan Touring, the Campus Tourbot, is a robotic tour-guide/tourist robot for parts of the MIT campus. Work on the robot began in January 2006, and for the past 31 months, I have devoted thousands of hours to designing, ...

  2. GREAVES & FIGLIOZZI 1 COMMERCIAL VEHICLE TOUR DATA COLLECTION USING PASSIVE

    E-Print Network [OSTI]

    Bertini, Robert L.

    GREAVES & FIGLIOZZI 1 COMMERCIAL VEHICLE TOUR DATA COLLECTION USING PASSIVE GPS TECHNOLOGY: ISSUES information on commercial vehicle tours within an urban setting. The paper focuses on passive GPS methods of passive GPS technology in urban freight modelling and planning. Despite processing challenges, GPS

  3. Have You Visited the Living Zero Home Tour?

    Broader source: Energy.gov [DOE]

    The Living Zero Home Tour is on the road, and it may be in a city near you! If you have the chance to see the tour, you may be surprised to discover the small steps that you can take to save energy...

  4. Nahum Gelber Law Library A Self-Guided Library Tour

    E-Print Network [OSTI]

    Kambhampati, Patanjali

    Nahum Gelber Law Library A Self-Guided Library Tour Welcome to the Nahum Gelber Law Library by the library and how to locate materials for assignments, course readings, reserves etc. The tour should take you about 30 minutes. The Nahum Gelber Law Library is one of the Faculty of Law buildings on the north

  5. Experiment on TiO2/AC Photocatalysis Technique to Eliminate Toluene in Air Conditioning Systems 

    E-Print Network [OSTI]

    Hu, Y.; Feng, G.; Yuan, Q.

    2006-01-01

    system to control indoor environmental conditions. The influences of the absorption characteristics of active carbon and TIO2 photocatalytic oxidation on decomposing toluene are tested. The efficiencies of three kinds of purification webs to purify high...

  6. "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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Informationmonthly gasoline price to fall to $3.43U.S.longec 188 U.S.1 HomeRegional37 Air-Conditioning

  7. Energy Savings Potential and Research, Development, & Demonstration Opportunities for Residential Building Heating, Ventilation, and Air Conditioning Systems

    SciTech Connect (OSTI)

    Goetzler, William; Zogg, Robert; Young, Jim; Schmidt, Justin

    2012-10-01

    This report is an assessment of 135 different heating, ventilation, and air-conditioning (HVAC) technologies for U.S. residential buildings to identify and provide analysis on 19 priority technology options in various stages of development. The analyses include an estimation of technical energy-savings potential, descriptions of technical maturity, descriptions of non-energy benefits, descriptions of current barriers for market adoption, and descriptions of the technology's applicability to different building or HVAC equipment types. From these technology descriptions, are suggestions for potential research, development and demonstration (RD&D) initiatives that would support further development of the priority technology options.

  8. Energy Savings Potential and Research, Development, & Demonstration Opportunities for Commercial Building Heating, Ventilation, and Air Conditioning Systems

    SciTech Connect (OSTI)

    none,

    2011-09-01

    This report covers an assessment of 182 different heating, ventilation, and air-conditioning (HVAC) technologies for U.S. commercial buildings to identify and provide analysis on 17 priority technology options in various stages of development. The analyses include an estimation of technical energy-savings potential, description of technical maturity, description of non-energy benefits, description of current barriers for market adoption, and description of the technology’s applicability to different building or HVAC equipment types. From these technology descriptions, are suggestions for potential research, development and demonstration (RD&D) initiatives that would support further development of the priority technology options.

  9. Tour Andover Control TAC | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEt Al., 2013)OpenEnergy Facilities Biomass Facility Jump to: navigation,Tour

  10. PIA - Tour Tracker | 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann JacksonDepartment ofOffice|in theLegislativeIComplaints -BoundaryEnergyTour Tracker

  11. Heating, Ventilation, and Air Conditioning Design Strategy for a Hot-Humid Production Builder

    SciTech Connect (OSTI)

    Kerrigan, P.

    2014-03-01

    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.

  12. 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.

    2006-01-01

    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...

  13. Using Hydrated Salt Phase Change Materials for Residential Air Conditioning Peak Demand Reduction and Energy Conservation in Coastal and Transitional Climates in the State of California

    E-Print Network [OSTI]

    Lee, Kyoung Ok

    2013-05-31

    The recent rapid economic and population growth in the State of California have led to a significant increase in air conditioning use, especially in areas of the State with coastal and transitional climates. This fact makes that the electric peak...

  14. 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

  15. Distortions of Experimental Muon Arrival Time Distributions of Extensive Air Showers by the Observation Conditions

    E-Print Network [OSTI]

    R. Haeusler; A. F. Badea; H. Rebel; I. M. Brancus; J. Oehlschlaeger

    2001-10-17

    Event-by-event measured arrival time distributions of Extensive Air Shower (EAS) muons are affected and distorted by various interrelated effects which originate from the time resolution of the timing detectors, from fluctuations of the reference time and the number (multiplicity) of detected muons spanning the arrival time distribution of the individual EAS events. The origin of these effects is discussed, and different correction procedures, which involve detailed simulations, are proposed and illustrated. The discussed distortions are relevant for relatively small observation distances (R < 200 m) from the EAS core. Their significance decreases with increasing observation distance and increasing primary energies. Local arrival time distributions which refer to the observed arrival time of the first local muon prove to be less sensitive to the mass of the primary. This feature points to the necessity of arrival time measurements with additional information on the curvature of the EAS disk.

  16. The design, construction, and instrumentation of a chamber to study heat, mass, and momentum transfer from humid air to metal under conditions of frosting and free convection 

    E-Print Network [OSTI]

    Hutchison, James P

    1961-01-01

    THE DESIGN? CONSTRUCTION? AND INSTRUMENTATION OF A CEAMSER TO STUDY HEAT, MASS? AND MOSNTUM TRANSFER FROM HUMID AIR TO METAL UNDER CONDITIONS OF FROSTING AND FREE CONVECTION A Thesis By James P. Hutchison Submitted to the Graduate School..., AND MOMENTUM TRANSFER FROM HUMID AIR TO METAL UNDER CONDITIONS OF FROSTING AND FREE CONVECTION A Thesis By James P. Hutchison Approved as to Style and Content: Chairman of Committee Head of Departm t + gkA4; August 1961 ACKNOWLEDGEMENT S The writer...

  17. DEST Software to Analyze System Zoning and Energy Consumption in Air Conditioning Systems 

    E-Print Network [OSTI]

    Fan, Y.; Li, D.

    2006-01-01

    This paper reports on a study on how to appropriately divide system zoning by using DeST software to calculate the basis dynamic temperature and load of all rooms in an office building. Influent factors of weather conditions, building envelope...

  18. Proposal for the Award of a Contract for the Supply and Installation of Air Conditioning for the SCX1 Building

    E-Print Network [OSTI]

    2002-01-01

    This document concerns the award of a contract for the supply and installation of air conditioning for the SCX1 building. Following a market survey (MS-2937/ST/LHC) carried out among 115 firms in thirteen Member States, a call for tenders (IT-3046/ST/LHC) was sent on 26 March 2002 to 10 firms and two consortia in seven Member States. By the closing date, CERN had received seven tenders from six firms and one consortium in five Member States. The Finance Committee is invited to agree to the negotiation of a contract with the consortium DEMONT (IT) - GESCO (IT), the lowest bidder, for the supply and installation of air conditioning for the SCX1 building for a total amount of 649 319 euros (945 426 Swiss francs), not subject to revision. The rate of exchange which has been used is that stipulated in the tender. The firm has indicated the following distribution by country of the contract value covered by this adjudication proposal: IT-40%; DE-21%; GR-21%; SE-10%; FR-8%.

  19. Japanese and American competition in the development of scroll compressors and its impact on the American air conditioning industry

    SciTech Connect (OSTI)

    Ushimaru, Kenji )

    1990-02-01

    This report examines the technological development of scroll compressors and its impact on the air conditioning equipment industry. Scroll compressors, although considered to be the compressors of the future for energy-efficient residential heat pumps and possibly for many other applications, are difficult to manufacture on a volume-production base. The manufacturing process requires computer-aided, numerically controlled tools for high-precision fabrication of major parts. Japan implemented a global strategy for dominating the technological world market in the 1970s, and scroll compressor technology benefited from the advent of new-generation machine tools. As a result, if American manufacturers of scroll compressors purchase or are essentially forced to purchase numerically controlled tools from Japan in the future, they will then become dependent on their own competitors because the same Japanese conglomerates that make numerically controlled tools also make scroll compressors. This study illustrates the importance of the basic machine tool industry to the health of the US economy. Without a strong machine tool industry, it is difficult for American manufacturers to put innovations, whether patented or not, into production. As we experience transformation in the air conditioning and refrigeration market, it will be critical to establish a consistent national policy to provide healthy competition among producers, to promote innovation within the industry, to enhance assimilation of new technology, and to eliminate practices that are incompatible with these goals. 72 refs., 8 figs., 1 tab.

  20. Air-conditioning electricity savings and demand reductions from exterior masonry wall insulation applied to Arizona residences

    SciTech Connect (OSTI)

    Ternes, M.P.; Wilkes, K.E.

    1993-06-01

    A field test involving eight single-family houses was performed during the summer of 1991 in Scottsdale, Arizona to evaluate the potential of reducing air-conditioning electricity consumption and demand by insulating their exterior masonry walls. Total per house costs to perform the installations ranged from $3610 to $4550. The average annual savings was estimated to be 491 kWh, or 9% of pre-retrofit consumption. Peak demands without and with insulation on the hottest day of an average weather year for Phoenix were estimated to be 4.26 and 3.61 kill, for a demand reduction of 0.65 kill (15%). We conclude that exterior masonry wall insulation reduces air-conditioning electricity consumption and peak demand in hot, dry climates similar to that of Phoenix. Peak demand reductions are a primary benefit, making the retrofit worthy of consideration in electric utility conservation programs. Economics can be attractive from a consumer viewpoint if considered within a renovation or home improvement program.

  1. Air-conditioning electricity savings and demand reductions from exterior masonry wall insulation applied to Arizona residences

    SciTech Connect (OSTI)

    Ternes, M.P.; Wilkes, K.E.

    1993-01-01

    A field test involving eight single-family houses was performed during the summer of 1991 in Scottsdale, Arizona to evaluate the potential of reducing air-conditioning electricity consumption and demand by insulating their exterior masonry walls. Total per house costs to perform the installations ranged from $3610 to $4550. The average annual savings was estimated to be 491 kWh, or 9% of pre-retrofit consumption. Peak demands without and with insulation on the hottest day of an average weather year for Phoenix were estimated to be 4.26 and 3.61 kill, for a demand reduction of 0.65 kill (15%). We conclude that exterior masonry wall insulation reduces air-conditioning electricity consumption and peak demand in hot, dry climates similar to that of Phoenix. Peak demand reductions are a primary benefit, making the retrofit worthy of consideration in electric utility conservation programs. Economics can be attractive from a consumer viewpoint if considered within a renovation or home improvement program.

  2. 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

    2014-01-01

    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.

  3. Heating, Ventilation, and Air Conditioning Design Strategy for a Hot-Humid Production Builder

    SciTech Connect (OSTI)

    Kerrigan, P.

    2014-03-01

    Building Science Corporation (BSC) worked directly with the David Weekley Homes - Houston division 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 in preparation for the upcoming code changes in 2015. This research project addressed the following questions: 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?

  4. On eddy accumulation with limited conditional sampling to measure air-surface exchange

    SciTech Connect (OSTI)

    Wesely, M.L.; Hart, R.L.

    1994-01-01

    An analysis of turbulence data collected at a height of 12.3 m above grasslands was carried out to illustrate some of the limitations and possible improvements in methods to compute vertical fluxes of trace substances by the eddy accumulation technique with conditional sampling. The empirical coefficient used in the technique has a slight dependence on atmospheric stability, which can be minimized by using a threshold vertical velocity equal to approximately 0.75{sigma}{sub w}, below which chemical sampling is suspended. This protocol results in a smaller chemical sample but increases the differences in concentrations by approximately 70%. For effective conditional sampling when mass is being accumulated in a trap or reservoir, the time of sampling during updrafts versus downdrafts should be measured and used to adjust estimates of the mean concentrations.

  5. Experimental and kinetic study of autoignition in methane/ethane/air and methane/propane/air mixtures under engine-relevant conditions

    SciTech Connect (OSTI)

    Huang, J.; Bushe, W.K.

    2006-01-01

    The ignition delay of homogeneous methane/air mixtures enriched with small fractions of ethane/propane was measured using the reflected-shock technique at temperatures from 900 to 1400 K and pressures from 16 to 40 bar. The results show complex effects of ethane/propane on the ignition of methane, but a common trend observed with both hydrocarbons is an increased promotion effect for temperatures below 1100 K. A detailed kinetic mechanism was used to investigate the interaction between ethane/propane and the ignition chemistry of methane under the above conditions. It was found that at relatively low temperatures, the reactions between ethane/propane and methylperoxy (CH{sub 3}O{sub 2}) lead to an enhanced rate of formation of OH radicals in the initiation phase of the ignition. By systematically applying the quasi-steady-state assumptions to the intermediate species involved in the main reaction path identified, we have achieved an analytical description of the ignition process in the transitional temperature regime. The analytical solutions agree reasonably well with the detailed kinetic model and the experimental results for both ignition delay and concentrations of major intermediate species.

  6. Drag coefficient for the air-sea exchange: foam impact in hurricane conditions

    E-Print Network [OSTI]

    Golbraikh, Ephim

    2014-01-01

    A physical model is proposed for the estimation of the foam impact on the variation of the effective drag coefficient, C_d, with reference to the wind speed U10 in stormy and hurricane conditions. In the present model C_d is approximated by partitioning the sea surface into foam-covered and foam-free areas. Based on the available optical and radiometric measurements of the fractional foam coverage and the characteristic roughness of the sea-surface in the saturation limit of the foam coverage, the model yields the resulting dependence of C_d vs U10. This dependence is in fair agreement with that evaluated from field measurements of the vertical variation of the mean wind speed.

  7. Drag coefficient for the air-sea exchange in hurricane conditions

    E-Print Network [OSTI]

    Golbraikh, E

    2013-01-01

    The physical model is proposed for prediction of the non-monotonic drag coefficient variation with the neutral stability 10-m wind speed, U10. The model is based upon measurements of the foam coverage fraction and characteristic size of foam bubbles with U10, and on the drag coefficient approximation by the linearly weighted averaging over alternating foam-free and foam-covered portions of the ocean surface. The obtained drag coefficient is in fair agreement with that obtained by field measurements of the vertical variation of mean wind speed in Powell et al. (Nature, 2003) which discover reduction of the sea-surface drag with U10 rising to hurricane conditions.

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

    E-Print Network [OSTI]

    Han, Junqiao; Piette, Mary Ann

    2008-01-01

    for DR and demand side management, along with operationalresponse), DSM (demand side management), DR strategy, air

  9. 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

    2011-02-01

    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.

  10. Copper contamination effects on hydrogen-air combustion under SCRAMJET (supersonic combustion ramjet) testing conditions

    SciTech Connect (OSTI)

    Chang, S.L.; Lottes, S.A.; Berry, G.F.

    1990-01-01

    Two forms of copper catalytic reactions (homogeneous and heterogeneous) in hydrogen flames were found in a literature survey. Hydrogen atoms in flames recombine into hydrogen molecules through catalytic reactions, and these reactions which affect the timing of the combustion process. Simulations of hydrogen flames with copper contamination were conducted by using a modified general chemical kinetics program (GCKP). Results show that reaction times of hydrogen flames are shortened by copper catalytic reactions, but ignition times are relatively insensitive to the reactions. The reduction of reaction time depends on the copper concentration, copper phase, particle size (if copper is in the condensed phase), and initial temperature and pressure. The higher the copper concentration of the smaller the particle, the larger the reduction in reaction time. For a supersonic hydrogen flame (Mach number = 4.4) contaminated with 200 ppm of gaseous copper species, the calculated reaction times are reduced by about 9%. Similar reductions in reaction time are also computed for heterogeneous copper contamination. Under scramjet testing conditions, the change of combustion timing appears to be tolerable (less than 5%) if the Mach number is lower than 3 or the copper contamination is less than 100 ppm. The higher rate the Mach number, the longer the reaction time and the larger the copper catalytic effects. 7 tabs., 8 figs., 34 refs.

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

    SciTech Connect (OSTI)

    Henry DeLima; Joe Akin; Joseph Pietsch

    2008-09-14

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

  12. Registration Starts Soon for Hanford's Two Annual Public Tour...

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

    Salony, DOE, 509-376-0402, Cameron.Salony@rl.doe.gov RICHLAND, Wash. - The U.S. Department of Energy (DOE) will open online registration for both of its public tour programs in...

  13. Registration Starts Soon for 2013 Hanford Site Public Tours ...

    Energy Savers [EERE]

    and 11; May 7, 8, 9, 21*, 22* and 23*; June 4, 5, 6, 18* and 19*; July 30* and 31*; August 1*, 13*, 14*, 15*, 27*, 28* and 29*; and September 10, 11 and 12. *Denotes tour dates...

  14. Y-12 dietician conducts educational tour of local grocery store...

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

    on making good choices in the grocery store. Lacey recently led a tour of the Oak Ridge Food City where she explained how to read food nutrition labels and explained some of the...

  15. Briefing and Ancillary Materials for Rocky Branch Watershed Tour

    E-Print Network [OSTI]

    James, L. Allan

    1 Briefing and Ancillary Materials for Rocky Branch Watershed Tour Allan James This briefing available on the Water as a Resource, Geog 347, website: http://people.cas.sc.edu/ajames/347 Go to Ancillary

  16. Minimum Chaperone to Student Ratio and Costs Reserved Tours

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    SH 7/08 Minimum Chaperone to Student Ratio and Costs Reserved Tours Use the table below Costs Preschool 1 adult/4 students Ages 3 and under: free, Students ages 4 and up: $4 each, Adults: $6

  17. 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.

    2013-04-01

    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.

  18. Analysis and experimental study on formation conditions of large-scale barrier-free diffuse atmospheric pressure air plasmas in repetitive pulse mode

    SciTech Connect (OSTI)

    Li, Lee Liu, Lun; Liu, Yun-Long; Bin, Yu; Ge, Ya-Feng; Lin, Fo-Chang

    2014-01-14

    Atmospheric air diffuse plasmas have enormous application potential in various fields of science and technology. Without dielectric barrier, generating large-scale air diffuse plasmas is always a challenging issue. This paper discusses and analyses the formation mechanism of cold homogenous plasma. It is proposed that generating stable diffuse atmospheric plasmas in open air should meet the three conditions: high transient power with low average power, excitation in low average E-field with locally high E-field region, and multiple overlapping electron avalanches. Accordingly, an experimental configuration of generating large-scale barrier-free diffuse air plasmas is designed. Based on runaway electron theory, a low duty-ratio, high voltage repetitive nanosecond pulse generator is chosen as a discharge excitation source. Using the wire-electrodes with small curvature radius, the gaps with highly non-uniform E-field are structured. Experimental results show that the volume-scaleable, barrier-free, homogeneous air non-thermal plasmas have been obtained between the gap spacing with the copper-wire electrodes. The area of air cold plasmas has been up to hundreds of square centimeters. The proposed formation conditions of large-scale barrier-free diffuse air plasmas are proved to be reasonable and feasible.

  19. Ventilation Air Preconditioning Systems 

    E-Print Network [OSTI]

    Khattar, M.; Brandemuehl, M. J.

    1996-01-01

    Increased outside ventilation air requirements demand special attention to how that air will be conditioned. In winter, the incoming air may need preheating; in summer. the mixed air may be too humid for effective dehumidification. Part...

  20. Distribution of small dispersive coal dust particles and absorbed radioactive chemical elements in conditions of forced acoustic resonance in iodine air filter at nuclear power plant

    E-Print Network [OSTI]

    Ledenyov, Oleg P

    2013-01-01

    The physical features of distribution of the small dispersive coal dust particles and the adsorbed radioactive chemical elements and their isotopes in the absorber with the granular filtering medium with the cylindrical coal granules were researched in the case of the intensive air dust aerosol stream flow through the iodine air filter (IAF). It was shown that, at the certain aerodynamic conditions in the IAF, the generation of the acoustic oscillations is possible. It was found that the acoustic oscillations generation results in an appearance of the standing acoustic waves of the air pressure (density) in the IAF. In the case of the intensive blow of the air dust aerosol, it was demonstrated that the standing acoustic waves have some strong influences on both: 1) the dynamics of small dispersive coal dust particles movement and their accumulation in the IAF; 2) the oversaturation of the cylindrical coal granules by the adsorbed radioactive chemical elements and their isotopes in the regions, where the antin...

  1. Missouri Lithium-Ion Battery Company Hosts Tour With U.S. Deputy...

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

    Missouri Lithium-Ion Battery Company Hosts Tour With U.S. Deputy Secretary of Energy Poneman Missouri Lithium-Ion Battery Company Hosts Tour With U.S. Deputy Secretary of Energy...

  2. DOE Tour of Zero Floorplans: Pumpkin Ridge Passive House by Hammer...

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

    Pumpkin Ridge Passive House by Hammer and Hand DOE Tour of Zero Floorplans: Pumpkin Ridge Passive House by Hammer and Hand DOE Tour of Zero Floorplans: Pumpkin Ridge Passive House...

  3. DOE ZERH Webinar: Tour of Zero, Helping Customers Find Better Homes at Lower Costs

    Office of Energy Efficiency and Renewable Energy (EERE)

    Are you interested in helping homebuyers find a better home at a lower cost? The DOE Tour of Zero provides the opportunity for visitors to take a virtual tour of high-performance Zero Energy Ready...

  4. Tour of Zero: How you can Help Customers Find Better Homes at...

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

    Description: Are you interested in helping homebuyers find a better home at a lower cost? The DOE Tour of Zero provides the opportunity for visitors to take a virtual tour of...

  5. Tour of Zero: How you can help customers find better homes at...

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

    Description: Are you interested in helping homebuyers find a better home at a lower cost? The DOE Tour of Zero provides the opportunity for visitors to take a virtual tour of...

  6. Cameron.Hardy@rl.doe.gov Hanford Tour Registration Begins March...

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

    focus on environmental cleanup, while the B Reactor tours focus on Hanford's role in the top-secret Manhattan Project during World War II. All tours begin and end at the B Reactor...

  7. Effects of Podcast Tours on Tourists' Experiences in a National Park 

    E-Print Network [OSTI]

    Kang, Myung Hwa

    2011-02-22

    This dissertation examines the effect of podcast tours on park visitor experiences. Podcast tours have emerged as a new medium in facilitating the interaction between tourists and destinations. Providing visitors with ...

  8. Cromer Cycle Air Conditioner

    Office of Energy Efficiency and Renewable Energy (EERE)

    New Air Conditioning System Uses Desiccant to Transfer Moisture and Increase Efficiency and Capacity

  9. Air Conditioning Cold/Heat Source Analysis of the Inclusion of the Monetary Values of Environmental Damage Based on the LCA Theory 

    E-Print Network [OSTI]

    Li, Z.; Duanmu, L.; Shu, H.; Zhu, Y.

    2006-01-01

    This is an analysis of the effect on the technical solutions when monetary values of externalities are included in a model for selecting air conditioning cold/heat sources. The focus of the study is on heating and cooling using conventional...

  10. 2014-02-07 Issuance: Certification of Commercial Heating, Ventilation, and Air-conditioning, Water Heating, and Refrigeration Equipment; Notice of Proposed Rulemaking

    Broader source: Energy.gov [DOE]

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

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

    E-Print Network [OSTI]

    Han, Junqiao; Piette, Mary Ann

    2008-01-01

    Research Director, PIER Demand Response Research CenterAssessment of Demand Response & Advanced Metering, staffPower Shortages: Demand Response and its Applications in Air

  12. 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.

  13. Bicycles and left-right tours in locally finite Henning Bruhn Stefanie Kosuch Melanie Win Myint

    E-Print Network [OSTI]

    Diestel, Reinhard

    Bicycles and left-right tours in locally finite graphs Henning Bruhn Stefanie Kosuch Melanie Win Myint Abstract We extend three results involving bicycles and left-right tours to infi- nite, locally-right tours generate the bicycle space and the planarity criterion of Archdeacon, Bonnington and Little

  14. Future Air Conditioning Energy Consumption in Developing Countriesand what can be done about it: The Potential of Efficiency in theResidential Sector

    SciTech Connect (OSTI)

    McNeil, Michael A.; Letschert, Virginie E.

    2007-05-01

    The dynamics of air conditioning are of particular interestto energy analysts, both because of the high energy consumption of thisproduct, but also its disproportionate impact on peak load. This paperaddresses the special role of this end use as a driver of residentialelectricity consumption in rapidly developing economies. Recent historyhas shown that air conditioner ownership can grow grows more rapidly thaneconomic growth in warm-climate countries. In 1990, less than a percentof urban Chinese households owned an air conditioner; by 2003 this numberrose to 62 percent. The evidence suggests a similar explosion of airconditioner use in many other countries is not far behind. Room airconditioner purchases in India are currently growing at 20 percent peryear, with about half of these purchases attributed to the residentialsector. This paper draws on two distinct methodological elements toassess future residential air conditioner 'business as usual' electricityconsumption by country/region and to consider specific alternative 'highefficiency' scenarios. The first component is an econometric ownershipand use model based on household income, climate and demographicparameters. The second combines ownership forecasts and stock accountingwith geographically specific efficiency scenarios within a uniqueanalysis framework (BUENAS) developed by LBNL. The efficiency scenariomodule considers current efficiency baselines, available technologies,and achievable timelines for development of market transformationprograms, such as minimum efficiency performance standards (MEPS) andlabeling programs. The result is a detailed set of consumption andemissions scenarios for residential air conditioning.

  15. Sustainable Land Lab Tour | Photosynthetic Antenna Research Center

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With LivermoreSustainable Land Lab Tour Sustainable Land Lab Tour PARC

  16. Energy Consumption Simulation and Analysis of Heat Pump Air Conditioning System in Wuhan by the BIN Method 

    E-Print Network [OSTI]

    Wen, Y.; Zhao, F.

    2006-01-01

    to simulate the annual energy consumption of groundwater heat pump systems (GWHPS) for an office building in Wuhan. Its annual energy consumption was obtained and compared with the partner of the air source heat pump systems (ASHPS). The results show...

  17. Commissioning Tools for Heating/Cooling System in Residence - Verification of Floor Heating System and Room Air Conditioning System Performance 

    E-Print Network [OSTI]

    Miura, H.; Hokoi, S.; Iwamae, A.; Umeno, T.; Kondo, S.

    2004-01-01

    Tools of evaluating the performance of floor heating and room air conditioner are examined as a commissioning tool. Simple method is needed to check these performance while in use by residents, because evaluation currently requires significant time...

  18. EMISSIONS TO AIR OPERATIONAL PROCEDURE

    E-Print Network [OSTI]

    Harman, Neal.A.

    PURPOSE: To minimise emissions and discharges to air from boilers, fume cupboards, air conditioning Act 1993. SCOPE: All air-conditioning and refrigeration equipment METHOD: Air-conditioning or fluorinated greenhouse gases (air conditioning units, refrigeration units etc.) 2. Several approved

  19. Android Development--Campus Tour Application Android has maps, why

    E-Print Network [OSTI]

    Gray, Jeffrey G.

    Android Development--Campus Tour Application Android has maps, why build another? Our application is built on top of the Google Maps External Library for Android that is available on cur- rent Android This poster describes an Android application that will guide a user around campus and give them important

  20. Analysis of the Window Side Thermal Environment Formed by Air Barrier Technique in Winter Conditions and Its Economy 

    E-Print Network [OSTI]

    Huang, C.; Jia, Y.; Liu, L.; Wang, X.

    2006-01-01

    The air barrier technique applies airflow through a window fan to decrease the heat load of a window surface and avoid dewfall in winter and decrease heat radiation from the window surface in summer. This paper uses numerical simulation to predict...

  1. Investigation and Analysis of Energy Consumption and Cost of Electric Air Conditioning Systems in Civil Buildings in Changsha 

    E-Print Network [OSTI]

    Xie, D.; Chen, J.; Zhang, G.; Zhang, Q.

    2006-01-01

    based on the electric refrigeration. Among the heat sources, the prospect of gas boilers is better. In addition, the air source heat pump depends heavily on whether some crucial issues such as frost can be solved during its application. The water...

  2. Senior U.S. Energy Department Official to Tour Daikin McQuay...

    Energy Savers [EERE]

    Daikin McQuay - the world's largest producer of heating, ventilation and air conditioning (HVAC) equipment - received 1.4 million in Advanced Manufacturing Tax Credits...

  3. Simulation of energy performance of underfloor air distribution (UFAD) systems

    E-Print Network [OSTI]

    2009-01-01

    Refrigerating, and Air-Conditioning Engineers, Inc Bauman,conventional overhead (OH) air conditioning and underfloorair distribution, air conditioning, energy, peak demand,

  4. ORIGINAL ARTICLE Ambient Air Pollution

    E-Print Network [OSTI]

    Mulholland, James A.

    ORIGINAL ARTICLE Ambient Air Pollution and Cardiovascular Emergency Department Visits Kristi Busico ambient air pollutants and cardiovascular disease (CVD), the roles of the physicochemical components the relation between ambient air pollution and cardiovascular conditions using ambient air quality data

  5. Optimal Outside Air Control for Air Handling Units with Humidity Control 

    E-Print Network [OSTI]

    Wang, G.; Liu, M.

    2006-01-01

    Most air handling units (AHUs) in commercial buildings have the (air) economizer cycle to use outside air for free cooling under certain outside air conditions. Ideally the economizer cycle is enabled if outside air enthalpy is less than return air...

  6. Congressional, State Officials Tour Hanford’s Test Site for Safe Tank Waste Cleanup

    Broader source: Energy.gov [DOE]

    RICHLAND, Wash. – EM’s Office of River Protection (ORP) recently hosted a group of congressional and state legislative staffers on a tour of the Hanford site.

  7. Arkansas Natural Gas Company Hosts Tour With U.S. Deputy Secretary...

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

    joined with Conway Mayor Tab Townsell and company officials to tour Southwestern Energy's natural gas operations near Conway, Arkansas. During the visit, Poneman highlighted...

  8. Biodiversity. Future theme issues will include Tourism and Heritage Cuisines, Heritage Tour-

    E-Print Network [OSTI]

    Delson, Eric

    Biodiversity. Future theme issues will include Tourism and Heritage Cuisines, Heritage Tour- ism coordinate review of all standard submissions (other than brief notes and book reviews), combining three

  9. Field trips tour southern California and Colorado. Front page, 1986. Formal report

    SciTech Connect (OSTI)

    Baughman, G.; Cunningham, M.; Sarles, J.

    1987-02-01

    Groups visited Elk Hills Naval Petroleum Reserve and a nearby light oil stream flood operation. Groups toured the Omar Hill cogeneration plant and the wind farms of Tehachapi. Groups toured Platform Edith and held discussions on issues surrounding offshore oil drilling/production. Groups visited the Cool Water Coal Gasification Plant (Solar One and SEGS-1) and listened to discussions on desert land use issues. In Denver, groups toured the Cross Gold Mine. Wrap-up sessions were held, followed by tours of Solar Energy Research Institute labs in Golden, CO.

  10. 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.

  11. 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]

    2012-01-01

    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

  12. Distribution of small dispersive coal dust particles and absorbed radioactive chemical elements in conditions of forced acoustic resonance in iodine air filter at nuclear power plant

    E-Print Network [OSTI]

    Oleg P. Ledenyov; Ivan M. Neklyudov

    2013-06-14

    The physical features of distribution of the small dispersive coal dust particles and the adsorbed radioactive chemical elements and their isotopes in the absorber with the granular filtering medium with the cylindrical coal granules were researched in the case of the intensive air dust aerosol stream flow through the iodine air filter (IAF). It was shown that, at the certain aerodynamic conditions in the IAF, the generation of the acoustic oscillations is possible. It was found that the acoustic oscillations generation results in an appearance of the standing acoustic waves of the air pressure (density) in the IAF. In the case of the intensive blow of the air dust aerosol, it was demonstrated that the standing acoustic waves have some strong influences on both: 1) the dynamics of small dispersive coal dust particles movement and their accumulation in the IAF; 2) the oversaturation of the cylindrical coal granules by the adsorbed radioactive chemical elements and their isotopes in the regions, where the antinodes of the acoustic waves are positioned. Finally, we completed the comparative analysis of the theoretical calculations with the experimental results, obtained for the cases of: 1) the experimental aerodynamic modeling of physical processes of the absorbed radioactive chemical elements and their isotopes distribution in the IAF; and 2) the gamma-activation spectroscopy analysis of the absorbed radioactive chemical elements and their isotopes distribution in the IAF. We made the innovative propositions on the necessary technical modifications with the purpose to improve the IAF technical characteristics and increase its operational time at the nuclear power plant (NPP), going from the completed precise characterization of the IAF parameters at the long term operation.

  13. Development of empirical temperature and humidity-based degraded-condition indicators for low-tonnage air conditioners 

    E-Print Network [OSTI]

    Watt, James Bonner

    1997-01-01

    was equipped with the ability to use either a short-tube orifice (STO) or a thermal expansion valve (TXV). The degraded conditions studied include low evaporator airflow, high and low-charge, and a blocked condenser coil. The work presented in this thesis...

  14. B Reactor Tour Registration Opens March 2- Visitors Have Come From 60 Countries Worldwide

    Broader source: Energy.gov [DOE]

    RICHLAND, Wash. – The U.S. Department of Energy (DOE) will open online registration for the B Reactor National Historic Landmark’s 2013 tour season on March 2 at noon. Families with children above the age of 12, along with middle schools and high schools, are invited to sign up for the coveted tour slots.

  15. TOUR HYDROS.CH -Duba Hong-Kong-Singapore-Monaco-Brazil USA Records & conferences

    E-Print Network [OSTI]

    Psarrakos, Panayiotis

    ;· · · · 10 #12;· · · 11 #12;12 #12;13 #12;14 #12;15 #12;16 #12;VOILES DE SAINT- TROPEZ TOUR HYDROS.CH - Dubaï19-23 July 2016 Energy Efficiency Global Forum Washington May, 12-13 TOUR HYDROS.CH ­ Records

  16. Admissions and Prospective Student Tours The College, Chicago Booth, the Law School, and Graduate Admissions Of-

    E-Print Network [OSTI]

    to the Museum of Science and Industry and Washington Park is home to the DuSable Museum of African American, which holds past yearbooks and other publications and memorabilia. Hyde Park Architecture Tour architecture.org The Chicago Architecture Foundation offers docent-led tours of Hyde Park. Historic Hyde Park

  17. 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.

    2006-10-01

    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.

  18. Energy Secretary Bodman Tours Alabama Red Cross Facility and Attends

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-inPPLfor Innovative SolarSavings Performance ContractingTour

  19. Congressmen tour Y-12 facilities | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouthReporteeo | National NuclearaCSGFNuclearCongressmen tour Y-12

  20. Experimental investigation of supersonic low pressure air plasma flows obtained with different arc-jet operating conditions

    SciTech Connect (OSTI)

    Lago, Viviana; Ndiaye, Abdoul-Aziz

    2012-11-27

    A stationary arc-jet plasma flow at low pressure is used to simulate some properties of the gas flow surrounding a vehicle during its entry into celestial body's atmospheres. This paper presents an experimental study concerning plasmas simulating a re-entry into our planet. Optical measurements have been carried out for several operating plasma conditions in the free stream, and in the shock layer formed in front of a flat cylindrical plate, placed in the plasma jet. The analysis of the spectral radiation enabled the identification of the emitting species, the determination of the rotational and vibrational temperatures in the free-stream and in the shock layer and the determination of the distance of the shock to the flat plate face. Some plasma fluid parameters like, stagnation pressure, specific enthalpy and heat flux have been determined experimentally along the plasma-jet axis.

  1. The Impact of Climate Change on Air QualityRelated Meteorological Conditions in California. Part II: Present versus Future Time Simulation Analysis

    E-Print Network [OSTI]

    Chen, Shu-Hua

    results to infer potential air pollution changes in California. Changes in both the meteorological fields of stagnation days (NNSD) integrating all stagnation events, during which most of the air pollution episodes will be stronger in the future for the two main air pollution seasons (i.e., summer and winter). Increases

  2. Indoor air movement acceptability and thermal comfort in hot-humid climates

    E-Print Network [OSTI]

    Candido, Christhina Maria

    2010-01-01

    Windsor Conference - Air Conditioning and the Low CarbonA. , Thomas, PC (2010). Air conditioning, comfort and energyAmerica's Romance with Air- Conditioning. Washington, D.C.

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

    E-Print Network [OSTI]

    Zhou, Nan

    2010-01-01

    the energy efficiency of air conditioning products isbetween the energy efficiency of air conditioning productsthe air conditioning testing facilities of energy efficiency

  4. Air Conditioning | 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann JacksonDepartment of Energy Facilities By E-mail: YouAbsorption heat pumpsstory home

  5. 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 on Delicious Rank EERE: Alternative Fuels DataEnergy Webinar:I Due Date Adv. FossilMethodsDepartment ofAmerica's

  6. DOE Tour of Zero: The Advanced Efficiency Home by Palo Duro Homes...

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

    Advanced Efficiency Home by Palo Duro Homes Inc. DOE Tour of Zero: The Advanced Efficiency Home by Palo Duro Homes Inc. Addthis 1 of 9 Palo Duro Homes of Albuquerque, New Mexico,...

  7. Events & Topics in Renewable Energy & the Environment Sustainable Land Lab Tour

    E-Print Network [OSTI]

    Subramanian, Venkat

    Events & Topics in Renewable Energy & the Environment Sustainable Land Lab Tour What. Events & Topics in Renewable Energy & the Environment is sponsored by the Photosynthetic Antenna Research Center (PARC) and I-CARES (International Center for Advanced Renewable Energy and Sustainability

  8. DOE Tour of Zero Floorplans: McKinley Project by Carl Franklin...

    Energy Savers [EERE]

    Zero Floorplans: McKinley Project by Carl Franklin Homes and Green Extreme Homes DOE Tour of Zero Floorplans: McKinley Project by Carl Franklin Homes and Green Extreme Homes DOE...

  9. DOE Tour of Zero: The First DOE Zero Energy Ready Retrofit by...

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

    by Green Extreme Homes and Carl Franklin Homes DOE Tour of Zero: The First DOE Zero Energy Ready Retrofit by Green Extreme Homes and Carl Franklin Homes Addthis 1 of 11 Green...

  10. DOE Tour of Zero: The MassDevelopment Devens Green Zero-Energy...

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

    Devens Green Zero-Energy Community Custom Home by Transformations Inc. DOE Tour of Zero: The MassDevelopment Devens Green Zero-Energy Community Custom Home by Transformations Inc....

  11. Zero-Energy Home Tour: Coming to a City Near You

    Broader source: Energy.gov [DOE]

    You may have already heard about the Living Zero Home Tour, which is a traveling and interactive exhibit featuring ENERGY STAR products, eco-friendly construction methods, and innovative...

  12. Tour of Zero: Helping Customers Find Better Homes at Lower Costs...

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

    would want to see it first, on the outside, then the inside, and then some technical pictures if there's further interest on the what's-behind-the-wall content. And like any tour,...

  13. GUIDED TOUR—CONNECTED LIGHTING SYSTEMS MEETING AND TECHNOLOGY DEVELOPMENT WORKSHOP

    Broader source: Energy.gov [DOE]

    The guided bus tour will provide a first-hand look at an LED connected lighting system installed in an office space in the 911 Federal Building. This eight-story building constructed in the 1950s...

  14. Investigation of techniques to improve continuous air monitors under conditions of high dust loading in environmental setting. 1998 annual progress report

    SciTech Connect (OSTI)

    Schery, S.D.; Wasiolek, P.T. [New Mexico Inst. of Mining and Technology, Socorro, NM (US); Rodgers, J. [Los Alamos National Lab., NM (US)

    1998-06-01

    'Improvement in understanding of the deposition of ambient dust particles on ECAM (Environmental Continuous Air Monitor) filters, reduction of the alpha-particle interference of radon progeny and other radioactive aerosols in different particle size ranges on filters, and development of ECAM''s with increased sensitivity under dusty outdoor conditions. As of May 1, 1998 (1/2 year into the project) the research-prototype 30-cm pulsed ionization chamber (PIC) is assembled and operational with an alpha particle energy resolution of better than 45 keV for 5-MeV alpha particles. Measurements of spectral resolution for alpha particles from radon decay products have been made as a function of filter type and dust loading conditions. So far, a study of ten filter types has found that the best combination of resolution and throughput is obtained with 3.0 \\265m Millipore fluoropore and 1.0 \\265m Corning FNMB filters. Experiments with gypsum and Portland cement dust in the size range 1 to 20 \\265m indicate significant degradation in alpha particle resolution for dust loading above about 0.5 mg cm{sup -2}. Study of metalized films for possible use as a PIC window indicate a minimum broadening of 5-MeV alpha particle peaks from 43 (no film) to 301 keV (with film) for AVR film type B8 (0.20 mg cm{sup -2} polycarbonate). A modified ECAM sampling head, equipped with an optical microscopy system feeding data to a high resolution video data capture and logging instrument, was constructed. This system will enable time-lapse study of dust build-up on ECAM filters and formation of dendrite structures that can reduce alpha-particle resolution.'

  15. In hot and dry weather such as Phoenix summers, Air Conditioning (AC) and cooling becomes a large percentage of the power load on the grid. In this thesis the performance of a Hybrid AC System (HACS) is modeled and

    E-Print Network [OSTI]

    In hot and dry weather such as Phoenix summers, Air Conditioning (AC) and cooling becomes a large percentage of the power load on the grid. In this thesis the performance of a Hybrid AC System (HACS, especially during peak hours. In addition to solar photovoltaic (PV) panels, the system includes an ice

  16. The world is grappling with two serious issues related to energy and climate change. The use of solar energy is receiving much attention due to its potential as one of the solutions. Air conditioning is particularly attractive as a

    E-Print Network [OSTI]

    of solar energy is receiving much attention due to its potential as one of the solutions. Air conditioning is particularly attractive as a solar energy application because of the near coincidence of peak cooling loadsThe world is grappling with two serious issues related to energy and climate change. The use

  17. 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.

    2008-01-01

    Consumption 2005-2030 Consumption (TWh) IND INDO SAS-PAS BRASAS-PAS BRA MEA Figure 4 Air Conditioner Saturation by Region 2005-

  18. Taking a Tour of Wilmington's Energy-Efficient Spaces | Department...

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

    energy consumption by 45 percent. Snipes Academy of Arts and Design utilizes a water source heat pump system and outside air system for the school's heating and cooling....

  19. Preliminary Analysis of Potential ADS-B User Benefits for Hawaiian Helicopter Air Tour Operators

    E-Print Network [OSTI]

    Lester, Edward

    ADS-B ground infrastructure is currently planned to be installed in Hawaii between 2010 and 2013 as part of the National Airspace System (NAS) wide implementation of ADS-B. Current plans call for ADS-B coverage to be focused ...

  20. Cold air distribution in office buildings: technology assessment for califonia

    E-Print Network [OSTI]

    Bauman, Fred; Borgers, T.; LaBerge, P.; Gadgil, A.

    1993-01-01

    for sunm~er air conditioning with ice storage. ASHRAEIce storage is one form of thermal energy storage (TES), or off-peak air conditioning,

  1. Cold Air Distribution in Office Buildings: Technology Assessment for California

    E-Print Network [OSTI]

    Bauman, F.S.

    2008-01-01

    for summer air conditioning with ice storage." ASHRAEIce storage is one form of thennal energy storage (TES), or off-peak air-conditioning,

  2. Analysis of the efficiency of urban commercial vehicle tours: Data collection, methodology, and policy implications

    E-Print Network [OSTI]

    Bertini, Robert L.

    vehicle tours; Truck trip distribution; Freight data collection; Empty trips; Trip length distribution 1 of equivalency factors for light and heavy vehi- cles. A commercial vehicle impact on congestion can.elsevier.com/locate/trb #12;the truck dimensions, engine power and truck weight, geometric design, and prevalent traffic

  3. M.A. Figliozzi Page 2 ANALYSIS OF URBAN COMMERCIAL VEHICLE TOURS: EFFICIENCY,

    E-Print Network [OSTI]

    Tours, Truck Trip Distribution, Freight Data Collection, Empty Trips, Trip Length Distribution #12;M with the use of equivalency factors for light and heavy vehicles. A commercial vehicle impact on congestion can be equivalent to the impact of several cars depending on the truck dimensions, engine power and truck weight

  4. Judith Gap Wind Farm Tour 2011 Many Thanks to Invenergy and Site Manager John Bacon

    E-Print Network [OSTI]

    Maxwell, Bruce D.

    Judith Gap Wind Farm Tour 2011 Many Thanks to Invenergy and Site Manager John Bacon #12;Getting the low-down on the high-up from site manager John Bacon Gearing up #12;Seth Knutson, Matt Peterson, tower, Site Manager John Bacon, WAC Director Robb Larson MSU graduate students Ed Meehan and Matt Peterson

  5. RevisiTour: Enriching the Tourism Experience With User-Generated Content

    E-Print Network [OSTI]

    Stasko, John T.

    RevisiTour: Enriching the Tourism Experience With User- Generated Content Youn-ah Kang, John Stasko the tourism experience of people at the Georgia Aquarium by providing a context of photos and by motivating the trip, the visitor can access a website where s/he uploads photos, synchronizes them with the path

  6. Connect at www.kent.ac.uk/kbs SUMMER SCHOOL STUDY TOURS

    E-Print Network [OSTI]

    Banaji,. Murad

    the opportunity to take the teaching out of the classroom. Study tours focused on a particular discipline often visits to the London Stock Exchange, Lloyds Bank London, as well as a visit to the renowned Shepherd and well-defined objectives and outputs. Great moment at the London Stock Exchange." Financial management

  7. CAMPUS WALKING TOUR Welcome to the University of WisconsinMadison, known throughout

    E-Print Network [OSTI]

    Turner, Monica G.

    details and online reservations are available at: info.wisc.edu. The following helpful links and resources­Madison offers many things to see and do, such as exploring natural areas, studying interesting architecture-mail: askbucky@uwmad.wisc.edu Visit online, which includes a live chat: info.wisc.edu Guided tours are available

  8. OPTIMAL COVERING TOURS WITH TURN COSTS # ESTHER M. ARKIN + , MICHAEL A. BENDER # , ERIK D. DEMAINE ,

    E-Print Network [OSTI]

    Arkin, Estie

    '') with a cutting tool. The objective is to find a path or tour along which to move a prescribed cutter in order applications of computational geometry to automatic tool path generation and automatic inspection systems variants arise not only in NC machining applications but also in automatic inspection, spray painting/coating

  9. Tour Brookhaven Lab's Future Hub for Energy Research: The Interdisciplinary Science Building

    ScienceCinema (OSTI)

    Gerry Stokes; Jim Misewich

    2013-07-19

    Construction is under way for the Interdisciplinary Science Building (ISB), a future world-class facility for energy research at Brookhaven Lab. Meet two scientists who will develop solutions at the ISB to tackle some of the nation's energy challenges, and tour the construction site.

  10. An investigation of the heat and mass transfer by free convection from humid air to a horizontal metal plate under frosting conditions 

    E-Print Network [OSTI]

    Bell, Bobby

    1967-01-01

    fulfillment of the requirements for the degree of MASTER OF SCIENCE January, 1967 Fh)or Sub)ect: Mechanical Engineering AN INVESTIGATION OF THE HEAT AND MASS TRANSFER BY FREE CONVECTION FROM HUMID AIR TO A HORIZONTAL METAL PIATE UNDER FROSTING... Sketch ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 16 Photographs of Frost Formation e ~ ~ ~ i ~ i i ~ 23 - 26 LIST OF CURVES 13 - 14 Temperature and Concentration Boundary Layer Profile ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 58 59 15 ? 16 Accumulation of Frost Grosth vs. Time...

  11. Air temperature thresholds for indoor comfort and perceived air quality

    E-Print Network [OSTI]

    Zhang, Hui; Edward, Arens; Pasut, Wilmer

    2012-01-01

    caused by office's thermal Environment, J. Archit. Plann.Standard 55- 2010. Thermal environment conditions for humanindoor air quality, thermal environment, lighting and

  12. Indoor Air Quality Forms 195 Building: _________________________________________________________ File Number: ________________________________

    E-Print Network [OSTI]

    Indoor Air Quality Forms 195 Building in relation to indoor air quality. Page 1 of 14 Needs Attention Not ApplicableOKComponent Comments Outside Air Screen Unobstructed? General condition? Size of mesh? (1 /2" minimum) Outside Air Dampers Operation

  13. Air-Con International: Noncompliance Determination and Proposed...

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

    to Air-Con International finding that a variety of central air conditioners and air conditioning heat pumps distributed under the Air-Con private label do not comport with the...

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

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

    mean for me? A ductless mini-split air conditioner is easier to install than a central air conditioning system. A ductless mini-split air conditioner provides zoned air...

  15. Environmental Conditions Environmental Conditions

    E-Print Network [OSTI]

    Environmental Conditions Environmental Conditions Appendix II The unique geology, hydrology and instream habitat. This chapter examines how environmental conditions in the Deschutes watershed affect, the discussion characterizes the environmental conditions within three watershed areas: the Lower Deschutes

  16. Seminar and Technical Tour to 10 Plants in Operation Vienna (Spittelau, Pfaffenau, Simmering) Zwentendorf Gmunden Linz Lenzing

    E-Print Network [OSTI]

    Columbia University

    , Simmering) Zwentendorf Gmunden Linz Lenzing PROGRAMME #12;Practice Seminar on Sustainable Waste Lunch at the cantina 01.00 pm ­ 03.00 pm Technical Tour of the WtE Plants at Simmering Historic overview

  17. Development of youth leadership life skills of Texas youth as San Antonio Livestock Exposition school tour guides 

    E-Print Network [OSTI]

    Real, Laura A; Real, Laura A.

    2005-02-17

    training. The target population was Texas 4-H, FFA, and FCCLA members who served as school tour guides at the San Antonio Livestock Exposition. School tour guides referred to the 4-H, FFA, FCCLA members who imparted their personal knowledge... guide, and previous leadership skills training. 5 CHAPTER II REVIEW OF LITERATURE This literature review provides a foundation of previous research regarding the relationship between youth leadership life skills development (YLLSD...

  18. U.S. Environmental Protection Agency Clean Air Act notice of construction for spent nuclear fuel project - hot conditioning system annex, project W-484

    SciTech Connect (OSTI)

    Baker, S.K., Westinghouse Hanford

    1996-12-10

    This notice of construction (NOC) provides information regarding the source and the estimated quantity of potential airborne radionuclide emissions resulting from the operation of the Hot Conditioning System (HCS) Annex. The construction of the HCS Annex is scheduled to conunence on or about December 1996, and will be completed when the process equipment begins operations. This document serves as a NOC pursuant to the requirements of 40 Code of Federal Regulations (CFR) 61 for the HCS Annex. About 80 percent of the U.S. Department of Energy`s spent nuclear fuel (SNF) inventory is stored under water in the Hanford Site K Basins. Spent nuclear fuel in the K West Basin is contained in closed canisters, while the SNF in the K East Basin is contained in open canisters, which allows release of corrosion products to the K East Basin water. Storage of the current inventory in the K Basins was originally intended to be on an as-needed basis to sustain operation of the N Reactor while the Plutonium-Uranium Extraction (PUREX) Plant was refurbished and restarted. The decision in December 1992 to deactivate the PUREX Plant left approximately 2, 1 00 MT (2,300 tons) of uranium, as part of 1133 N Reactor SNF in the K Basins with no means for near-term removal and processing. The HCS Annex will be constructed as an annex to the Canister Storage Building (CSB) and will contain the hot conditioning equipment. The hot conditioning system (HCS) will release chemically-bound water and will condition (process of using a controlled amount of oxygen to destroy uranium hydride) the exposed uranium surfaces associated with the SNF through oxidation. The HCS Annex will house seven hot conditioning process stations, six operational and one auxiliary, which could be used as a welding area for final closure of the vessel containing the SNF. The auxiliary pit is being evaluated at this time for its usefulness to support other operations that may be needed to ensure proper conditioning of the SNF and proper storage of the vessel containing the SNF. Figures I and 2 contain map locations of the Hanford Site and the HCS Annex.

  19. Energy efficiency dynamometer testing at the 1996 American Tour de Sol

    SciTech Connect (OSTI)

    Sluder, S.; Duoba, M.; Buitrago, C.; Leblanc, N.; Larsen, R.

    1996-08-01

    In 1995, the U.S. Department of Energy through Argonne National Laboratory`s Center for Transportation Research sponsored energy efficiency data collection from the student, private, and professional vehicles during the American Tour de Sol. The American Tour de Sol is a multiple-day road rally event run from New York City to Washington, D.C. As part of this efficiency testing, a number of vehicles were tested on a chassis dynamometer utilizing three common drive cycles: the LA-4, the New York City Cycle, and the Highway Fuel Economy Test. The results demonstrate remarkable efficiency increases over a gasoline control vehicle and significant cycle-sensitivity information. Two series hybrid electric vehicles (HEVs) were shown to have fuel efficiencies which were less sensitive to drive cycle than either a gasoline or an electric vehicle.

  20. 2005 Tour de Sol: The Sustainable Energy and Transportation Festival and Competition

    SciTech Connect (OSTI)

    Nancy Hazard

    2005-05-07

    This report gives a summary of the 2005Tour de Sol: The Sustainable Energy and Transportation Festival and Competition. It lists our objectives, what we did, and an analysis of how we met our objectives. An 80-page report with a list of verified print, radio and TV media coverage, and copies of selected news clips and web media coverage is available at the NESEA office for review.

  1. Room air stratification in combined chilled ceiling and displacement ventilation systems.

    E-Print Network [OSTI]

    Schiavon, Stefano; Bauman, Fred; Tully, Brad; Rimmer, Julian

    2012-01-01

    Environments. Proceedings of Indoor Air 2005: 10 thInternational Conference on Indoor Air Quality and Climate,displacement ventilation hybrid air conditioning system-

  2. The Use of Positive Matrix Factorization with Conditional Probability Functions in Air Quality Studies: An Application to Hydrocarbon Emissions in Houston, Texas

    SciTech Connect (OSTI)

    Xie, YuLong; Berkowitz, Carl M.

    2006-06-01

    As part of a study to identify groups of compounds (‘source categories’) associated with different processing facilities, a multivariate receptor model called Positive Matrix Factorization (PMF) was applied to hourly average concentrations of volatile organic compounds (VOCs) measured at five Photochemical Assessment Monitoring Stations (PAMS) located near the Ship Channel in Houston, Texas. The observations were made between June and October, 2003, and limited to nighttime measurements (21:00 pm – 6:00 am) in order to remove the complexity of photochemical processing and associated changes in the concentrations of primary and secondary VOCs. Six to eight volatile organic compounds source categories were identified for the five Ship Channel sites. The dominant source categories were found to be those associated with petrochemical, chemical industries and fuel evaporation. In contrast, source categories associated with on-road vehicles were found to be relatively insignificant. Although evidence of biogenic emissions was found at almost all the sites, this broad category was significant only at the Wallisville site, which was also the site furthest away from the Ship Channels area and closest to the northeast forest of Texas. Natural gas, accumulation and fuel evaporation sources were found to contribute most to the ambient VOCs, followed by the petrochemical emission of highly reactive ethene and propylene. Solvent / paint industry and fuel evaporation and emission from refineries were next in importance while the on-road vehicle exhaust generally contributed less than 10% of the total ambient VOCs. Specific geographic areas associated with each source category were identified through the use of a Conditional Probability Function (CPF) analysis that related elevated concentrations of key VOCs in each category to a network of grids superimposed on the source inventories of the VOCs.

  3. Library Audio Tour: Main Library Welcome to the MSU Libraries! I'm a Reference Librarian and I'm going to take you

    E-Print Network [OSTI]

    Library Audio Tour: Main Library Welcome to the MSU Libraries! I'm a Reference Librarian and I'm going to take you on a quick tour of the Main Library, the largest library of the MSU Libraries. You can and a Library Directory. Hit your PAUSE button now if you need a minute to find it. You are now in the Lobby

  4. Seymour Center offers guided tours on the Santa Cruz wharf SANTA CRUZ, CA--In collaboration with the City of Santa Cruz, UCSC's Seymour

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    Seymour Center offers guided tours on the Santa Cruz wharf SANTA CRUZ, CA--In collaboration with the City of Santa Cruz, UCSC's Seymour Marine Discovery Center is now leading free 30-minute public tours on the Santa Cruz Municipal Wharf every Saturday and Sunday at 1 and 3 p.m. The Seymour Center's marine science

  5. EVENT CLOUDS : lighter than air architectural structures

    E-Print Network [OSTI]

    Peydro Duclos, Ignacio

    2014-01-01

    EVENT CLOUD is a versatile covering system that allows events to happen independently to weather conditions. It consists of a lighter than air pneumatic structure, filled either with helium or hot air, that covers spaces ...

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

    SciTech Connect (OSTI)

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

    1984-01-01

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

  7. Performance of electric and hybrid vehicles at the 1995 American Tour de Sol

    SciTech Connect (OSTI)

    Quong, S.; LeBlanc, N.; Buitrago, C.; Duoba, M.; Larsen, R.

    1995-12-31

    Energy consumption and performance data were collected on more than 40 electric and hybrid vehicles during the 1995 American Tour de Sol. At this competition, one electric vehicle drove 229 miles on one charge using nickel metalhydride batteries. The results obtained from the data show that electric vehicle efficiencies reached 9.07 mi./kWh or 70 equivalent mpg of gasoline when compared to the total energy cycle efficiency of electricity and gasoline. A gasoline-fueled 1995 Geo Metro that drove the same route attained 36.4 mpg.

  8. Microsoft PowerPoint - ID 876 TourBooklet_revb_Geology [Compatibility Mode]

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About1996How to Apply forNavalReginald AgunwahPaducah Site TourTankBusinessEnergy,

  9. Investigative Tools and Techniques for Indoor Air Quality Studies 

    E-Print Network [OSTI]

    Kennedy, S. R.; Quinn, C. B.; Henderson, J. E.; Vickery, R. G.

    1994-01-01

    Indoor air quality problems are diverse and often complex. Adverse indoor air quality problems can exist which create symptomatic conditions for building occupants. Often, the exact cause, or causes, of the substandard indoor air quality are unknown...

  10. Numerical Analysis of a Cold Air Distribution System 

    E-Print Network [OSTI]

    Zhu, L.; Li, R.; Yuan, D.

    2006-01-01

    non-uniform so that residents usually feel uncomfortable. The distribution of indoor airflow by cold air distribution is researched in this paper. We study indoor air distribution under different low temperature air supply conditions by numerical...

  11. Spatial and temporal variations in indoor environmental conditions...

    Office of Scientific and Technical Information (OSTI)

    beam-break counters; and outdoor air fractions in the heating, ventilating, and air-conditioning systems serving the sampled spaces. Measurements were made at 5-minute intervals...

  12. Investigation of Feasibility of All-Fresh Air Supply in an All-Air System 

    E-Print Network [OSTI]

    Wang, J.; Yan, Z.

    2006-01-01

    The feasibility of an all-fresh air supply in an all-air system is investigated in theory, and the problem of AHU-handling air in low efficiency in summer and winter conditions is analyzed. The air supply temperature is almost up to standards when a...

  13. Alternative Refrigerants for Building Air Conditioning 

    E-Print Network [OSTI]

    Bivens, D. B.

    1996-01-01

    , 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...

  14. Alternatives to Electric Air Conditioning Systems 

    E-Print Network [OSTI]

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

    1988-01-01

    -driven water chiller. The packaged system has been designed, fabricated and tested. A field experiment unit has been operating since August, 1986, and seven field test units have been operating since April, 1987. The performance of the system has been...

  15. Membrane Based Air Conditioning | 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nAand DOE Safetyof EnergyPresentation:Dais Analytic Corporation - Odessa,

  16. 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 on Delicious Rank EERE:FinancingPetroleum12,ExecutiveFinancing ProgramsDepartment of¡ ¢ £Space Heating

  17. Air-Conditioning Basics | 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann JacksonDepartment of EnergyResearchers atDay 12:was createdNobelInnovations

  18. Central Air Conditioning | 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann JacksonDepartment of EnergyResearchersOctober 22,Plant | Department of EnergyCentral

  19. History of 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 on Delicious Rank EERE: Alternative Fuelsof Energy ServicesContracting OversightEMS PolicyandHigh

  20. DOE Tour of Zero: Options for Community Living by United Way...

    Office of Environmental Management (EM)

    including the storage tank and wall-hung boiler as well as the air handler for the hydro coil and high-efficiency (16 SEER) air conditioner. 11 of 14 The fresh air system...

  1. Maintaining Your Air Conditioner | Department of Energy

    Office of Environmental Management (EM)

    its years of service. Neglecting necessary maintenance ensures a steady decline in air conditioning performance while energy use steadily increases. Check out our Energy...

  2. Tips: Air Conditioners | Department of Energy

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

    before proper dehumidification occurs, making the area feel "clammy" and uncomfortable. Central air-conditioning systems need to be sized by professionals. Explore our Energy...

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

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

    against Air-Con, International, requiring the company to stop selling certain air conditioning systems in the U.S. that have been shown to violate minimum energy efficiency...

  4. Optimal Indoor Air Temperature Considering Energy Savings and Thermal Comfort in the Shanghai Area 

    E-Print Network [OSTI]

    Yao, Y.; Lian, Z.; Hou, Z.; Liu, W.

    2006-01-01

    Indoor air temperature is the most important control parameter in air conditioning systems. It not only impacts the thermal comfort of occupants, but also also greatly affects the energy consumption in air conditioning systems. The lower the indoor...

  5. Economical Analysis of the Cold Air Distribution System: A Case Study 

    E-Print Network [OSTI]

    Zhou, Z.; Xu, W.; Li, J.; Zhao, J.; Niu, L.

    2006-01-01

    In this paper, we briefly introduce the super cold air distribution technique. By comparing the schemes of two air conditioning systems, including a modified air conditioning system, this paper analyzes the technique parameters and the economics...

  6. Improvement in understanding the deposition of ambient dust particles on ECAM (environmental continuous air monitor) filters, reduction of the alpha-particle interference of radon progeny and other radioactive aerosols in different particle size ranges on filters, and development of ECAMs with increased sensitivity under dusty outdoor conditions.

    SciTech Connect (OSTI)

    Schery, Stephen D., Wasiolek, Piotr; Rodgers, John

    1999-06-01

    Improvement in understanding the deposition of ambient dust particles on ECAM (environmental continuous air monitor) filters, reduction of the alpha-particle interference of radon progeny and other radioactive aerosols in different particle size ranges on filters, and development of ECAMs with increased sensitivity under dusty outdoor conditions.

  7. 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]

    2014-01-01

    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

  8. Portable air monitoring laboratories

    SciTech Connect (OSTI)

    Ehntholt, D.J.; Beltis, K.J.; McCullough, J.E.; Valentine, J.R. [Arthur D. Little, Inc., Cambridge, MA (United States)

    1995-12-31

    Arthur D. Little, Inc. was contracted by the US Army to design, fabricate, test and deliver a series of portable air monitoring laboratories which could be used to detect trace levels of toxic chemicals on board cargo ships. The labs were designed to be completely self-sufficient, containing all supplies necessary for a 75-day mission, and to operate under rugged conditions. They were used to monitor for parts-per-billion concentrations of chemical agents in air and to provide information equivalent to high quality fixed laboratory analyses. The mission was successfully completed; independent design awards were received for the laboratories, and they were subsequently diverted to other uses.

  9. Events, Tours

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFES OctoberEvan Racah Evan Racah 1517546 EvanEFRCEFRCJANUARY(SC)

  10. BEST statistics of Markovian fluxes: a tale of Eulerian tours and Fermionic ghosts

    E-Print Network [OSTI]

    Matteo Polettini

    2015-08-18

    We provide an exact expression for the statistics of the fluxes of Markov jump processes at all times, improving on asymptotic results from large deviation theory. The main ingredient is a generalization of the BEST theorem in enumeratoric graph theory to Eulerian tours with open ends. In the long-time limit we reobtain Sanov's theorem for Markov processes, which expresses the exponential suppression of fluctuations in terms of relative entropy. The finite-time power-law term, increasingly important with the system size, is a spanning-tree determinant that, by introducing Grassmann variables, can be absorbed into the effective Lagrangian of a Fermionic ghost field on a metric space, coupled to a gauge potential. With reference to concepts in nonequilibrium stochastic thermodynamics, the metric is related to the dynamical activity that measures net communication between states, and the connection is made to a previous gauge theory for diffusion processes.

  11. Building America Webinar: High Performance Space Conditioning...

    Energy Savers [EERE]

    Webinar: High Performance Space Conditioning Systems, Part II - Air Distribution Retrofit Strategies for Affordable Housing Building America Webinar: High Performance Space...

  12. Promote the use of electric and hybrid vehicles through information dissemination & data collection through the NESEA American Tour de Sol. Final project report

    SciTech Connect (OSTI)

    2000-09-12

    A report on information dissemination on alternative fueled vehicles and on efficiency data collected at the NESEA American Tour de Sol is presented. Some of the latest advanced transportation technology vehicles were showcased. Numerous attachments are included, such as the post-event newsletter, press kit, publicity report, results table, technical workshop proceedings, NESEA tour rules and resources, and a paper titled ''Quantifying the fuel use and greenhouse gas reduction potential of electric and hybrid vehicles.''

  13. Strategy Guideline: Compact Air Distribution Systems

    SciTech Connect (OSTI)

    Burdick, A.

    2013-06-01

    This Strategy Guideline discusses the benefits and challenges of using a compact air distribution system to handle the reduced loads and reduced air volume needed to condition the space within an energy efficient home. Traditional systems sized by 'rule of thumb' (i.e., 1 ton of cooling per 400 ft2 of floor space) that 'wash' the exterior walls with conditioned air from floor registers cannot provide appropriate air mixing and moisture removal in low-load homes. A compact air distribution system locates the HVAC equipment centrally with shorter ducts run to interior walls, and ceiling supply outlets throw the air toward the exterior walls along the ceiling plane; alternatively, high sidewall supply outlets throw the air toward the exterior walls. Potential drawbacks include resistance from installing contractors or code officials who are unfamiliar with compact air distribution systems, as well as a lack of availability of low-cost high sidewall or ceiling supply outlets to meet the low air volumes with good throw characteristics. The decision criteria for a compact air distribution system must be determined early in the whole-house design process, considering both supply and return air design. However, careful installation of a compact air distribution system can result in lower material costs from smaller equipment, shorter duct runs, and fewer outlets; increased installation efficiencies, including ease of fitting the system into conditioned space; lower loads on a better balanced HVAC system, and overall improved energy efficiency of the home.

  14. Air Quality

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications Traditional KnowledgeAgenda Agenda NERSC UserAgustin Mihi andAir Leaks inAir

  15. Determining the Right Air Quality for Your Compressed Air System...

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

    Applications Plant Air Air tools, general plant air Instrument Air Laboratories, paint spraying, powder coating, climate control Process Air Food and pharmaceutical process...

  16. Cromer Cycle Air Conditioner: A Unique Air-Conditioner Desiccant Cycle to Enhance Dehumidification and Save Energy 

    E-Print Network [OSTI]

    Cromer, C. J.

    2000-01-01

    The Cromer cycle uses a desiccant to move moisture from the saturated air leaving an air conditioning (AC) cooling coil to the air returning to the AC unit from the conditioned space. This has the thermodynamic effect of reducing the overall energy...

  17. Model-Based Diagnostics for Air-Handling Units Salsbury and Diamond 1 ModelModel--Based Diagnostics for Air Handling UnitsBased Diagnostics for Air Handling Units

    E-Print Network [OSTI]

    -Based Diagnostics for Air-Handling Units ­ Salsbury and Diamond 1 ModelModel--Based Diagnostics for Air Handling UnitsBased Diagnostics for Air Handling Units Tim Salsbury and Rick Diamond Lawrence Berkeley National Laboratory Berkeley, CA 94720 Introduction In most large air-conditioned buildings, air-handling units

  18. Energy efficiency of electric vehicles at the 1994 American Tour de Sol

    SciTech Connect (OSTI)

    Quong, S.; Duoba, M.; Buitrago, C.; LeBlanc, N.; Larsen, R.

    1994-11-01

    In 1994, the US Department of Energy, through Argonne National Laboratory`s Center for Transportation Research, sponsored energy-efficiency data collection from student, private, and professional electric vehicles during the American Tour de Sol (ATdS). The ATDS is a multiple-day road rally event, from New York City to Philadelphia. During each leg of the event, kilowatt-hour meters measured the efficiency of the electric vehicles (EVs), which averaged from 5.68 to 65.74 km/kWh. In addition to daily energy-usage measurements, some vehicles used a data-acquisition unit to collect second-by-second information. This showed, in one case, that 21% of the total energy was captured in regenerative braking. Some of the vehicles were also tested on a dynamometer for energy-efficiency, acceleration, and steady-state power ratings. This paper also compares the energy efficiency of the vehicles during the road rally to the dynamometer results. In almost all vehicles, there was an increase in energy efficiency when the vehicle was traveling over the road, due to the non-transient duty cycle and efficient driving techniques. The dynamometer testing also showed that some EVs are equal to or better than gasoline vehicles in performance and efficiency.

  19. Optimizing Electric Humidifier Operation with an Air Side Economizer 

    E-Print Network [OSTI]

    Shami, U. F.

    1996-01-01

    Air side economizer cycle is a control scheme that is often used in WAC systems to reduce cooling energy consumption by introducing variable quantities of ambient air into a conditioned space to satisfy the space cooling load (free cooling...

  20. Experimental Investigation of the Padding Tower for Air Dehumidifier 

    E-Print Network [OSTI]

    Wang, J.; Liu, J.; Li, C.; Zhang, G.; An, S.

    2006-01-01

    of the liquid desiccant air conditioning. Of these design parameters, the framework of the padding tower, ratio of the air and the concentration of the inlet solution is largest through the tower, the temperature and effects of the dehumidifying capability...

  1. Air Quality

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O O D S TA I N P A T T E R N AManaged bynuevo sistemaAir

  2. Dirty Air Conditioners: Energy Implications of Coil Fouling Jeffrey Siegel, Lawrence Berkeley National Laboratory/ UC Berkeley

    E-Print Network [OSTI]

    Berkeley National Laboratory ABSTRACT Residential air conditioning is responsible for a substantial amount conditioning commissioning and maintenance practices. Introduction Residential air conditioning is responsible. For typical residential heat pump and air conditioning #12;systems, they predict a 10 ­ 25 % average energy

  3. Monitoring the Performance of a Residential Central Air Conditioner under Reduced Evaporator Air Flow on a Test Bench 

    E-Print Network [OSTI]

    Palani, Manivannan

    1992-01-01

    This report presents results from degraded performance measurements of a residential air conditioning system operating under reduced evaporator air flow. Experiments were conducted using a R-22 three-ton split-type cooling system with a short...

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

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

    Penalty to Air-Con, International, requiring Air-Con to cease the sale of certain air-conditioning systems in the United States and proposing a civil penalty of 231,090 for sales...

  5. Air Leakage and Air Transfer Between Garage and Living Space

    SciTech Connect (OSTI)

    Rudd, A.

    2014-09-01

    This research project focused on evaluation of air transfer between the garage and living space in a single-family detached home constructed by a production homebuilder in compliance with the 2009 International Residential Code and the 2009 International Energy Conservation Code. The project gathered important information about the performance of whole-building ventilation systems and garage ventilation systems as they relate to minimizing flow of contaminated air from garage to living space. A series of 25 multi-point fan pressurization tests and additional zone pressure diagnostic testing characterized the garage and house air leakage, the garage-to-house air leakage, and garage and house pressure relationships to each other and to outdoors using automated fan pressurization and pressure monitoring techniques. While the relative characteristics of this house may not represent the entire population of new construction configurations and air tightness levels (house and garage) throughout the country, the technical approach was conservative and should reasonably extend the usefulness of the results to a large spectrum of house configurations from this set of parametric tests in this one house. Based on the results of this testing, the two-step garage-to-house air leakage test protocol described above is recommended where whole-house exhaust ventilation is employed. For houses employing whole-house supply ventilation (positive pressure) or balanced ventilation (same pressure effect as the Baseline condition), adherence to the EPA Indoor airPLUS house-to-garage air sealing requirements should be sufficient to expect little to no garage-to-house air transfer.

  6. Measured Impacts of Air Conditioner Condenser Shading 

    E-Print Network [OSTI]

    Parker, D. S.; Barkaszi, S. F.; Sonne, J. K.

    1996-01-01

    A study has been conducted by the Florida Solar Energy Center (FSEC) to examine if space cooling energy savings can be achieved from shading of residential air conditioning (AC) condenser units. The investigation consisted of before...

  7. Study of Air Infiltration Energy Consumption 

    E-Print Network [OSTI]

    Liu, Mingsheng

    1992-01-01

    consumption, showed that results from earlier steady-state measurements can be approximately applied to dynamic conditions when solar radiation is not present. However, this study has shown for the first time that IHEE is strongly dependent on air flow...

  8. Metal-Air Batteries

    SciTech Connect (OSTI)

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

    2011-08-01

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

  9. Indoor air movement acceptability and thermal comfort in hot-humid climates

    E-Print Network [OSTI]

    Candido, Christhina Maria

    2010-01-01

    Air conditioning, comfort and energy in India’s CommertialAir conditioning, comfort and energy in India’s Commertialand energy consumption across commercial, office and public buildings in India [

  10. Laboratory Evaluation of Air Flow Measurement Methods for Residential...

    Office of Scientific and Technical Information (OSTI)

    used in commissioning California heating and air conditioning systems in Title 24 (Building and Appliance Efficiency Standards), thereby improving system performance and...

  11. Insulation and Air Sealing Products and Services | Department...

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

    of a variety of insulation and construction products and services Heating, Ventilating, Air Conditioning, and Refrigerating Suppliers and Products Directory American Society of...

  12. Air temperature thresholds for indoor comfort and perceived air quality

    E-Print Network [OSTI]

    Zhang, Hui; Edward, Arens; Pasut, Wilmer

    2012-01-01

    in the Netherlands, Indoor Air 2, 127 – 136. BuildingPaliaga, G. (2009) Moving air for comfort. ASHRAE Journal,ventilation system on perceived air quality, Indoor Air

  13. NUMERICAL SIMULATIONS OF AIR FLOW AND HEAT TRANSFER VIA PDES Fei Cao, Luz Angelica Caudillo-Mata, Natalia Iwanski, Yong Li, Kamran Sadiq,

    E-Print Network [OSTI]

    by the air conditioning units (ACUs) with large scale fans into the plenum thereby pressurizing it of the air conditioning units; these are meant to extract (hot) air out of the room. Thus, equipment like

  14. Moving air for comfort

    E-Print Network [OSTI]

    Arens, Edward; Turner, Stephen; Zhang, Hui; Paliaga, Gwelen

    2009-01-01

    Brager, L. Zagreus. 2007, “Air movement preferences observed709-731. 9. Toftum, J. 2004. “Air movement – good or bad? ”Indoor Air 14, pp 40-45. 10. Gong, N. , K. Tham, A. Melikov,

  15. Feasibility of air capture

    E-Print Network [OSTI]

    Ranjan, Manya

    2010-01-01

    Capturing CO2 from air, referred to as Air Capture, is being proposed as a viable climate change mitigation technology. The two major benefits of air capture, reported in literature, are that it allows us to reduce the ...

  16. Primary zone air proportioner

    DOE Patents [OSTI]

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

    1982-10-12

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

  17. Biological Air Emissions Control

    Office of Energy Efficiency and Renewable Energy (EERE)

    Air quality standards are becoming more stringent for the U.S. wood products industry. Emissions of volatile organic compounds (VOCs) and hazardous air pollutants (HAPs) (including methanol,...

  18. Chapter 21 Air Quality

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

    are in the PortlandVancouver metro area where there are more industrial sources of air pollution and higher levels of traffic congestion that create more air emissions....

  19. Optimal Covering Tours with Turn Costs Esther M. Arkin Michael A. Bender y Erik D. Demaine z Sandor P. Fekete x

    E-Print Network [OSTI]

    Mitchell, Joseph S.B.

    for covering (``milling'') a given region (``pocket'') with a cutting tool: Find a path or tour along which arise naturally in manufacturing applications of computational geometry to automatic tool path in several other applications, including automatic inspection, spray paint­ ing/coating operations, robotic

  20. FIU-IHRC Joined NOAA's Hurricane Hunter Awareness Tour MIAMI (May 8, 2015)-Florida International University's (FIU) International Hurricane Research Center

    E-Print Network [OSTI]

    Chen, Shu-Ching

    FIU-IHRC Joined NOAA's Hurricane Hunter Awareness Tour MIAMI (May 8, 2015)- Florida International University's (FIU) International Hurricane Research Center (IHRC) participated with National Oceanic and Atmospheric Administration's National Hurricane Center (NHC) on the 2015 East Coast Hurricane Hunter Awareness

  1. Advanced Strategy Guideline: Air Distribution Basics and Duct Design

    SciTech Connect (OSTI)

    Burdick, A.

    2011-12-01

    This report discusses considerations for designing an air distribution system for an energy efficient house that requires less air volume to condition the space. Considering the HVAC system early in the design process will allow adequate space for equipment and ductwork and can result in cost savings. Principles discussed that will maximize occupant comfort include delivery of the proper amount of conditioned air for appropriate temperature mixing and uniformity without drafts, minimization of system noise, the impacts of pressure loss, efficient return air duct design, and supply air outlet placement, as well as duct layout, materials, and sizing.

  2. Method and apparatus for extracting water from air

    DOE Patents [OSTI]

    Spletzer, Barry L. (Albuquerque, NM); Callow, Diane Schafer (Albuquerque, NM); Marron, Lisa C. (Albuquerque, NM); Salton, Jonathan R. (Albuquerque, NM)

    2002-01-01

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

  3. Method and apparatus for extracting water from air

    DOE Patents [OSTI]

    Spletzer, Barry L. (Albuquerque, NM)

    2001-01-01

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

  4. Comparison of freezing control strategies for residential air-to-air heat recovery ventilators

    SciTech Connect (OSTI)

    Phillips, E.G.; Bradley, L.C. ); Chant, R.E. ); Fisher, D.R.

    1989-01-01

    A comparison of the energy performance of defrost and frost control strategies for residential air-to-air heat recovery ventilators (HRV) has been carried out by using computer simulations for various climatic conditions. This paper discusses the results and conclusions from the comparisons and their implications for the heat recovery ventilator manufacturers and system designers.

  5. Air Pollution Spring 2010

    E-Print Network [OSTI]

    Pierce, Jeffrey

    ATS 555 Air Pollution Spring 2010 T Th 11:00 ­ 12:15, NESB 101 Instructor: Prof. Sonia Kreidenweis an understanding of types and sources of air pollution. 2. Examine concentrations of air pollutants and their effects on health and welfare. Review regulations governing air pollution. 3. Examine the meteorological

  6. Reactive Air Aluminization

    SciTech Connect (OSTI)

    Choi, Jung-Pyung; Chou, Y. S.; Stevenson, Jeffry W.

    2011-10-28

    Ferritic stainless steels and other alloys are of great interest to SOFC developers for applications such as interconnects, cell frames, and balance of plant components. While these alloys offer significant advantages (e.g., low material and manufacturing cost, high thermal conductivity, and high temperature oxidation resistance), there are challenges which can hinder their utilization in SOFC systems; these challenges include Cr volatility and reactivity with glass seals. To overcome these challenges, protective coatings and surface treatments for the alloys are under development. In particular, aluminization of alloy surfaces offers the potential for mitigating both evaporation of Cr from the alloy surface and reaction of alloy constituents with glass seals. Commercial aluminization processes are available to SOFC developers, but they tend to be costly due to their use of exotic raw materials and/or processing conditions. As an alternative, PNNL has developed Reactive Air Aluminization (RAA), which offers a low-cost, simpler alternative to conventional aluminization methods.

  7. The Effect of Reduced Evaporator Air Flow on the Performance of a Residential Central Air Conditioner 

    E-Print Network [OSTI]

    Palani, M.; O'Neal, D.; Haberl, J.

    1992-01-01

    the performance of a residential cooling system operating under degraded conditions such as reduced evaporator air flow. Degraded performance measurements can provide information which could help electric utilities evaluate the potential impact of system...

  8. Single-Duct Constant Air Volume System Supply Air Temperature Reset: Using Return Air Temperature or Outside Air Temperature? 

    E-Print Network [OSTI]

    Wei, G.; Turner, W. D.; Claridge, D.; Liu, M.

    2002-01-01

    The supply air temperature set point for a singleduct constant air volume air handling unit (AHU) system is often reset based on either return air temperature or outside air temperature in order to reduce simultaneous cooling and heating energy...

  9. Air Conditioner Compressor Performance Model

    SciTech Connect (OSTI)

    Lu, Ning; Xie, YuLong; Huang, Zhenyu

    2008-09-05

    During the past three years, the Western Electricity Coordinating Council (WECC) Load Modeling Task Force (LMTF) has led the effort to develop the new modeling approach. As part of this effort, the Bonneville Power Administration (BPA), Southern California Edison (SCE), and Electric Power Research Institute (EPRI) Solutions tested 27 residential air-conditioning units to assess their response to delayed voltage recovery transients. After completing these tests, different modeling approaches were proposed, among them a performance modeling approach that proved to be one of the three favored for its simplicity and ability to recreate different SVR events satisfactorily. Funded by the California Energy Commission (CEC) under its load modeling project, researchers at Pacific Northwest National Laboratory (PNNL) led the follow-on task to analyze the motor testing data to derive the parameters needed to develop a performance models for the single-phase air-conditioning (SPAC) unit. To derive the performance model, PNNL researchers first used the motor voltage and frequency ramping test data to obtain the real (P) and reactive (Q) power versus voltage (V) and frequency (f) curves. Then, curve fitting was used to develop the P-V, Q-V, P-f, and Q-f relationships for motor running and stalling states. The resulting performance model ignores the dynamic response of the air-conditioning motor. Because the inertia of the air-conditioning motor is very small (H<0.05), the motor reaches from one steady state to another in a few cycles. So, the performance model is a fair representation of the motor behaviors in both running and stalling states.

  10. Security Conditions

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2004-07-08

    This Notice ensures that DOE uniformly meets the requirements of the Homeland Security Advisory System outlined in Homeland Security Presidential Directive-3, Threat Conditions and Associated Protective Measures, dated 3-11-02, and provides responses specified in Presidential Decision Directive 39, U.S. Policy on Counterterrorism (U), dated 6-21-95. It cancels DOE N 473.8, Security Conditions, dated 8-7-02. Extended until 7-7-06 by DOE N 251.64, dated 7-7-05 Cancels DOE N 473.8

  11. New Whole-House Solutions Case Study: Evaluating Through-Wall Air Transfer Fans, Pittsburgh, Pennsylvania

    SciTech Connect (OSTI)

    2014-10-01

    In this project, Building America team IBACOS performed field testing in a new construction unoccupied test house in Pittsburgh, Pennsylvania, to evaluate heating, ventilating, and air conditioning (HVAC) distribution systems during heating, cooling, and midseason conditions. The team evaluated a market-available through-wall air transfer fan system that provides air to the bedrooms.The relative ability of this system was considered with respect to relevant Air Conditioning Contractors of America and ASHRAE standards for house temperature uniformity and stability.

  12. General Air Permits (Louisiana)

    Broader source: Energy.gov [DOE]

    Any source, including a temporary source, which emits or has the potential to emit any air contaminant requires an air permit. Facilities with potential emissions less than 5 tons per year of any...

  13. Clean Air Bill 

    E-Print Network [OSTI]

    Her Majesty's Stationary Office

    1955-01-01

    The object of this Bill is to implement the principal recommendations in the Report of the Committee on Air Pollution

  14. on man, nature & air pollution

    E-Print Network [OSTI]

    Finlayson-Pitts, Barbara J

    2008-01-01

    on man, nature & air pollution About three decades ago, itand episodes of air pollution the following summer. Wetthe increase in air pollution. This hypothesis generated

  15. DOE Tour of Zero: Mutual Housing at Spring Lake by Mutual Housing...

    Energy Savers [EERE]

    domestic hot water year-round. 13 of 14 In the one-level apartments, the comfort deliver system heating and cooling ducts are located within the conditioned space in hallway...

  16. Air Quality: Air Pollutants, SLAC Emissions Sources, and Regulatory Reference

    E-Print Network [OSTI]

    Wechsler, Risa H.

    Air Quality: Air Pollutants, SLAC Emissions Sources, and Regulatory Reference Department: Chemical permit regulations are designed to track, record, and control air pollutants belonging to several on chemical classifications. This reference outlines major categories of air pollutants found at SLAC

  17. 8:30, 9:30 and 10:30am -Various 30-minute Departmental Tours and Career Exploration Activities. Visit various campus locations utilizing your own transportation.

    E-Print Network [OSTI]

    Liu, Taosheng

    :30am and 2:30pm Location: Room 147 of the Natural Science Building (288 Farm Lane). Participants:00pm - Lunch on your own. Dining hall rates for children ages 5-9 is $4.75. For a complete list of on-campus dining halls, visit: www.eatatstate.msu.edu. 1:30 & 2:30pm - Various 30-minute Departmental Tours

  18. Air to Air Communication Protocol Arjan Durresi1

    E-Print Network [OSTI]

    Jain, Raj

    1 Air to Air Communication Protocol Arjan Durresi1 , Vamsi Paruchuri1 , Leonard Barolli2 and Raj. Louis, MO 63130, USA 314-935-4963, jain@cse.wustl.edu Abstract--We present Air to Air Communication (AAC........................................................2 3. AIR TO AIR COMMUNICATION..............................3 4. SIMULATIONS

  19. Oil and Gas Air Heaters 

    E-Print Network [OSTI]

    Kou, G.; Wang, H.; Zhou, J.

    2006-01-01

    Most conventional air heaters adopt indirect heat transfer, which uses combustion gases to indirectly heat fresh air by heating surfaces to generate hot air used for material drying and dehumidification. We call them indirect air heaters. However...

  20. Laboratory Test Report for ThermaStor Ultra-Aire XT150H Dehumidifier

    SciTech Connect (OSTI)

    Christensen, D.; Winkler, J.

    2009-12-01

    This report documents the performance of the ThermaStor Ultra-Aire XT150H Dehumidifier. Its performance was measured across a wide range of inlet air conditions and fit to a numerical model.

  1. CFD Simulation and Measurement Validation of Air Distribution at the Hunan International Exhibition Center 

    E-Print Network [OSTI]

    Deng, T.; Zhang, Q.; Zhang, G.; Yuan, H.

    2006-01-01

    The Hunan International Exhibition Center (HIEC) is a large space building. A stratified air-conditioning system on the second floor of the building has been adopted. Due to some problems with the air supply jet diffuser, CFD simulations were...

  2. Better Unitary Equipment Air-Handlers for Efficiency and Humidity Control 

    E-Print Network [OSTI]

    Sachs, H. M.

    2002-01-01

    procedure gives too little credit for advanced air handlers that reduce air conditioning load and facilitate adaptive humidity control through automatic fan speed adjustment. DC permanent magnet variable speed motors have much lower market share than less...

  3. Economizer control assembly for regulating the volume flow of outdoor ambient air

    SciTech Connect (OSTI)

    Michaels, D.D. Jr.

    1984-10-23

    An economizer assembly is disclosed wherein a sliding door is utilized for covering an outdoor ambient air opening allowing outdoor ambient air flow into a space to be conditioned. A motor shaft arrangement connected via a rotating drive rod is utilized to slidably displace the door to any position necessary to effectively regulate air flow. The utilization of this economizer control arrangement with a rooftop type air conditioning unit is further disclosed.

  4. Determining the Right Air Quality for Your Compressed Air System - Compressed Air Tip Sheet #5

    SciTech Connect (OSTI)

    2004-08-01

    BestPractices Program tip sheet discussing how to determine the right air quality for compressed air systems.

  5. Air-Con International: Order (2010-SE-0301)

    Broader source: Energy.gov [DOE]

    DOE ordered Air-Con International, Inc. to pay a civil penalty of $10,000 after finding Air-Con had distributed in commerce in the U.S. central air conditioning units that were not in conformity with the applicable energy conservation standards. DOE also found that, while some units were exported, none of the units were properly marked as imports intended for exportation.

  6. Indoor Air Quality

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

    In Focus For decades, teams of Berkeley Lab scientists have investigated the ways that indoor air quality affects human health-from cognitive ability to personal comfort...

  7. Personal continuous air monitor

    DOE Patents [OSTI]

    Morgan, Ronald G. (Los Alamos, NM); Salazar, Samuel A. (Albuquerque, NM)

    2000-01-01

    A personal continuous air monitor capable of giving immediate warning of the presence of radioactivity has a filter/detector head to be worn in the breathing zone of a user, containing a filter mounted adjacent to radiation detectors, and a preamplifier. The filter/detector head is connected to a belt pack to be worn at the waist or on the back of a user. The belt pack contains a signal processor, batteries, a multichannel analyzer, a logic circuit, and an alarm. An air pump also is provided in the belt pack for pulling air through the filter/detector head by way of an air tube.

  8. 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEt Al.,Turin,VillageWarrensourceCentreCounty, Tennessee:

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

    E-Print Network [OSTI]

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

    2008-01-01

    and nominal performances and capacities can be automatically computed through a pre-sizing calculation or defined basing on default values given in European standards (prEN 13053 and 13773). The implementation of this global building-HVAC model... and nominal performances and capacities can be automatically computed through a pre-sizing calculation or defined basing on default values given in European standards (prEN 13053 and 13773). The implementation of this global building-HVAC model...

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

    E-Print Network [OSTI]

    McGahey, K.; Harriman, L.

    1996-01-01

    to equalize this pressure differential. Lew Harriman Consultant Mason-Grant Company Box 6547 Portsmouth, NH 03802 With desiccants, moisture removal occurs in the vapor phase. Consequently, desiccant dehumidification can continue even when the dew...

  11. 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.

    2010-01-01

    walls; as one of envelope surfaces; has an important impact on solar radiation. Design and construction of glass walls have significant effects on building comfort and energy consumption. This paper describes methods of improving glass walls thermal...

  12. Desiccant-Enhanced Evaporative Air Conditioning: Parametric Analysis and Design

    SciTech Connect (OSTI)

    J. Woods and E. Kozubal

    2012-10-01

    Presented at the Second International Conference on Building Energy and Environment (COBEE2012); Boulder, Colorado; August 1-4-, 2012

  13. HEATING, AIR-CONDITIONING AND REFRIGERATION DISTRIBUTORS INTERNATIONAL

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-inPPLforLDRD Report11, SolarMatFermiGuido DeHoratiis -PDF version(HARDI) |

  14. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-inPPLforLDRD Report11,Security Officer Program |quickHeather

  15. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-inPPLforLDRD Report11,Security Officer Program |quickHeatherThermostats

  16. Keeping Cool Without Air Conditioning | 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-inPPLforLDRDEnergyTurbine blades being delivered to Kahuku.KathrynTrees

  17. 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 Data Center Home Page on Delicious RankADVANCED MANUFACTURINGEnergy BillsNo. 195 - Oct. 7, 2011 |1 DOEAssurance forReviewDepartmentQuantum Well

  18. 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 on Delicious Rank EERE:Financing Tool FitsProjectData Dashboard RutlandSTEAB's1-E Wholesale Powerand beEnergy and05as

  19. Heating, Ventilation, and Air Conditioning Projects | 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 on Delicious Rank EERE:FinancingPetroleum12,ExecutiveFinancing ProgramsDepartment of¡ ¢ £Space HeatingEmerging

  20. 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavy ElectricalsFTL Solar Jump to:Fenglilai Technology

  1. Air-Conditioning, Heating, and Refrigeration Institute (AHRI) Regulatory

    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 on Delicious Rank EERE: Alternative FuelsofProgram:Y-12 Beta-3AUDITLeslie PezzulloAgenda AgendaEnergyBurden RFI |

  2. Air-Conditioning, Heating, and Refrigeration Institute Ex Parte Memo |

    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 on Delicious Rank EERE: Alternative FuelsofProgram:Y-12 Beta-3AUDITLeslie PezzulloAgenda AgendaEnergyBurden RFI

  3. Residential Forced Air System Cabinet Leakage and Blower Performance

    SciTech Connect (OSTI)

    Walker, Iain S.; Dickerhoff, Darryl J.; Delp, William W.

    2010-03-01

    This project evaluated the air leakage and electric power consumption of Residential HVAC components, with a particular focus on air leakage of furnace cabinets. Laboratory testing of HVAC components indicated that air leakage can be significant and highly variable from unit to unit ? indicating the need for a standard test method and specifying maximum allowable air leakage in California State energy codes. To further this effort, this project provided technical assistance for the development of a national standard for Residential HVAC equipment air leakage. This standard is being developed by ASHRAE and is called"ASHRAE Standard 193P - Method of test for Determining the Air Leakage Rate of HVAC Equipment". The final part of this project evaluated techniques for measurement of furnace blower power consumption. A draft test procedure for power consumption was developed in collaboration with the Canadian General Standards Board: CSA 823"Performance Standard for air handlers in residential space conditioning systems".

  4. Designing Forced-Air HVAC Systems

    SciTech Connect (OSTI)

    2010-08-31

    This guide explains proper calculation of heating and cooling design loads for homes.used to calculated for the home using the protocols set forth in the latest edition of the Air Conditioning Contractors of America’s (ACCA) Manual J (currently the 8th edition), ASHRAE 2009 Handbook of Fundamentals, or an equivalent computation procedure.

  5. Current collectors for rechargeable Li-Air batteries

    SciTech Connect (OSTI)

    Veith, Gabriel M [ORNL; Dudney, Nancy J [ORNL

    2011-01-01

    Here we report the negative influence of porous nickel foam for use as current collectors in rechargeable Li-air batteries. Uncoated nickel foam promotes the decomposition of LiPF6-organic carbonate electrolytes under normal charging conditions reported for rechargeable Li-air cells. We have identified Ni free porous carbon supports as more appropriate cathode current collectors.

  6. Advanced Strategy Guideline. Air Distribution Basics and Duct Design

    SciTech Connect (OSTI)

    Burdick, Arlan

    2011-12-01

    This report discusses considerations for designing an air distribution system for an energy efficient house that requires less air volume to condition the space. Considering the HVAC system early in the design process will allow adequate space for equipment and ductwork and can result in cost savings.

  7. Leads Tactical Air Control Party (TACP) and Air Support

    E-Print Network [OSTI]

    Stuart, Steven J.

    Air LiAison officer Leads Tactical Air Control Party (TACP) and Air Support Operations Center (ASOC) operations. Provides Command and Control, and Execution of Air, Space, and Cyber power. Primary advisor and advocate to the Ground Force Commander ensuring effective Air, Space, and Cyber power integration with US

  8. Appendix F. Air Permits Appendix F. Air Permits F-3

    E-Print Network [OSTI]

    Pennycook, Steve

    Appendix F. Air Permits #12;#12;Appendix F. Air Permits F-3 Table F.1. Air Permits at the Y-12 Chemical Process Operation 01-0020-21 554701 Air Bearing Operation 01-0020-05 554701 Special Processing Purification Facility #12;Oak Ridge Reservation F-4 Appendix F. Air Permits Table F.2. Oak Ridge National

  9. Appendix E. Air Permits Appendix E. Air Permits E-3

    E-Print Network [OSTI]

    Pennycook, Steve

    Appendix E. Air Permits #12;#12;Appendix E. Air Permits E-3 Table E.1. Air permits at the Y-12 Chemical Process Operation 01-0020-21 554701 Air Bearing Operation 01-0020-05 554701 Special Processing Operation 01-0020-68 554701 Disassembly and Storage Operation #12;Oak Ridge Reservation E-4 Appendix E. Air

  10. Cromer Cycle Air Conditioner: A Study to Confirm Target Performance 

    E-Print Network [OSTI]

    Cromer, C. J.

    2001-01-01

    The Cromer cycle uses a desiccant wheel operating in conjunction with a typical air conditioning system. Simulations and laboratory prototypes demonstrate that the cycle has the potential for enhanced humidity control with sensible heat ratios...

  11. Heat transfer pathways in underfloor air distribution (UFAD) systems

    E-Print Network [OSTI]

    Bauman, F.; Jin, H.; Webster, T.

    2006-01-01

    air distribution: Thermal stratification. ASHRAE Journalstratification is increased and temperatures near the ceiling rise, this condition aggra- vates the thermalthermal decay can be a problem. Properly controlled UFAD systems produce temperature stratification

  12. Clean-up of Contaminated Indoor Air Using Photocatalytic Technology 

    E-Print Network [OSTI]

    Hingorani, S.; Greist, H.; Goswami, T.; Goswami, Y.

    2000-01-01

    to be completely effective. Dark control experiments were performed for each condition to confirm the validity of each experiment. The photocatalytic technology tested in these experiments was demonstrated to completely oxidize acetone at normal indoor air...

  13. Recirculating electric air filter

    DOE Patents [OSTI]

    Bergman, W.

    1985-01-09

    An electric air filter cartridge has a cylindrical inner high voltage electrode, a layer of filter material, and an outer ground electrode formed of a plurality of segments moveably connected together. The outer electrode can be easily opened to remove or insert filter material. Air flows through the two electrodes and the filter material and is exhausted from the center of the inner electrode.

  14. Compressed Air System Optimization 

    E-Print Network [OSTI]

    Aegerter, R.

    1999-01-01

    Several years ago I went to a gas station and noticed that my car's tires were low on air. I saw the gas station had an air compressor, but it cost a quarter to use the compressor. I paid my quarter and used the compressor. I realized...

  15. Recirculating electric air filter

    DOE Patents [OSTI]

    Bergman, Werner (Pleasanton, CA)

    1986-01-01

    An electric air filter cartridge has a cylindrical inner high voltage eleode, a layer of filter material, and an outer ground electrode formed of a plurality of segments moveably connected together. The outer electrode can be easily opened to remove or insert filter material. Air flows through the two electrodes and the filter material and is exhausted from the center of the inner electrode.

  16. The CitiSense Air Quality Monitoring Mobile Sensor Node Piero Zappi, Elizabeth Bales, Jing Hong Park, William Griswold and Tajana Simuni Rosing

    E-Print Network [OSTI]

    Simunic, Tajana

    conditions than the national ambient air quality standard [1]. Current air pollutant measurement networks. For example, The San Diego Air Pollution Control District (SDAPCD) maintains only five air pollutant samplingThe CitiSense Air Quality Monitoring Mobile Sensor Node Piero Zappi, Elizabeth Bales, Jing Hong

  17. Desulfurization of Texas lignite using steam and air 

    E-Print Network [OSTI]

    Stone, Robert Reginald

    1981-01-01

    in Coal Sulfur Removal From Coal By Pyrolysis EXPERIMENTAL METHOD Experimental Apparatus Experimental Procedure Analyses of the Products RESULTS AND DISCUSSION Temperature Effect Upon Desulfurization Pressure Effect Upon Desulfurization... . Treatment Composition Effect Pyrolysis Conditions vs. Addition of' Air V1 V111 ix 10 15 20 24 31 31 35 39 43 45 49 52 53 V11 TABLE OF CONTENTS (Continued) PAGE Pyrolysis Conditions vs. Addition of Steam and Air . . 53 Sulfur Removal...

  18. Indoor air movement acceptability and thermal comfort in hot-humid climates

    E-Print Network [OSTI]

    Candido, Christhina Maria

    2010-01-01

    energy efficiency with the majority of electricity consumption attributed to lighting and air-conditioningair-conditioning and lighting systems without any consideration for energy efficiency

  19. Air Resources: Prevention and Control of Air Contamination and...

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

    limits and permitting and operational requirements for facilities that may contribute to air emissions. General air quality standards and standards for specific contaminants are...

  20. Abatement of Air Pollution: Prohibition of Air Pollution (Connecticut...

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

    All air pollution not otherwise covered by these regulations is prohibited. Stationary sources which cause air pollution must be operated in accordance with all applicable...