Sample records for forced air system

  1. Register Closing Effects on Forced Air Heating System Performance

    SciTech Connect (OSTI)

    Walker, Iain S.

    2003-11-01T23:59:59.000Z

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

  2. Field measurements of interactions between furnaces and forced air distribution systems

    E-Print Network [OSTI]

    of equipment that provides the heating energy (the furnace, boiler or heat pump) and the method usedLBNL 40587 Field measurements of interactions between furnaces and forced air distribution systems Vol. 104 Part 1 Field measurements of interactions between furnaces and forced air distribution

  3. Residential Forced Air System Cabinet Leakage and Blower Performance

    E-Print Network [OSTI]

    Walker, Iain S.

    2010-01-01T23:59:59.000Z

    Driven Unitary  Air?Conditioning and Heat Pump Equipment”.  Air Conditioning &  Air?source Heat Pump Equipment.  Air?apply to the air handlers of heat pumps and electric 

  4. Complexity within the Air Force acquisition system gaining insight from a theory of collapse

    E-Print Network [OSTI]

    Marticello, Daniel Nicholas, Jr

    2012-01-01T23:59:59.000Z

    Joseph Tainter's theory of societal collapse is applied in an examination of the U.S. Air Force's aircraft acquisition system in order to gain insight into the enterprise's lagging performance. Theories of collapse at both ...

  5. Residential Forced Air System Cabinet Leakage and Blower Performance

    E-Print Network [OSTI]

    Walker, Iain S.

    2010-01-01T23:59:59.000Z

    CA.   CEC (2008b).  Residential Alternative Calculation Standard for Air Handlers in Residential Space Conditioning of Standards Options for Residential Air Handler Fans.   

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

    E-Print Network [OSTI]

    Siegel, Jeffrey

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

  7. E-Print Network 3.0 - air force systems Sample Search Results

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

    to be a likely driving force... ; these forces may also have been contributing to entrainment of fume hood air into the general room exhaust. 12;... indoor air quality...

  8. Sensitivity of forced air distribution system efficiency to climate, duct location, air leakage and insulation

    E-Print Network [OSTI]

    Walker, Iain

    2001-01-01T23:59:59.000Z

    Location, Air Leakage and Insulation Iain S. Walker Energy4 Duct Insulation, Location and Leakageinsulation

  9. Air Force Renewable Energy Programs

    Broader source: Energy.gov [DOE]

    Presentation covers Air Force Renewable Energy Programs and is given at the Spring 2011 Federal Utility Partnership Working Group (FUPWG) meeting.

  10. Air Force Enhanced Use Lease

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

    S e r v i c e - E x c e l l e n c e Headquarters U.S. Air Force 1 Air Force Enhanced Use Lease Mr. Brian Brown 16 Oct. 12 I n t e g r i t y - S e r v i c e - E x c e l l e n c e 2...

  11. Air Force Renewable Energy Programs

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

    in All We Do" I n t e g r i t y - S e r v i c e - E x c e l l e n c e THINK GREEN, BUILD GREEN, Topics Air Force Energy Use Air Force Facility Energy Center Current RE...

  12. U.S. Air Force Fact Sheet Air Force Reserve Officer Training Corps

    E-Print Network [OSTI]

    Su, Xiao

    U.S. Air Force Fact Sheet Air Force Reserve Officer Training Corps Mission Develop Quality Leaders for the Air Force. Personnel and Resources Air Force Reserve Officer Training Corps (ROTC) includes four,796 new Second Lieutenants who entered active duty in the United States Air Force. Organization Air Force

  13. Aeronautical System Center's environmental compliance assessment and management program's cost-saving initiatives support the Air Force's acquisition reform initiative

    SciTech Connect (OSTI)

    Meanor, T.

    1999-07-01T23:59:59.000Z

    The Environmental Management directorate of ASC (ASC/EM) has the responsibility of providing government oversight for the Government Owned Contractor Operated Aircraft and Missile plants (GOCOs). This oversight is manifested as a landlord role where Air Force provides the funding required to maintain the plant facilities including buildings and utilities as well as environmental systems. By agreement the companies operating the plants are required to operate them in accordance with environmental law. Presently the GOCOs include Air Force Plant (AFP) 6 in Marietta Ga., AFP 4 in Fort Worth, Tx., AFP 44 in Tucson, Az., AFP 42 in Palmdale, Ca., and AFP PJKS in Denver, Co. Lockheed Martin corporation operates AFPs 4,6, PJKS and a portion of AFP 42 while AFP 44 is operated by Raytheon Missile Systems Company. Other GOCOs at AFP 42 are Northrup-Grumman, Boeing, and Cabaco, the facilities engineer. Since 1992 the Environmental Management division has conducted its Environmental Compliance Assessment and Management Program assessments (ECAMP) annually at each of the plants. Using DOD's ECAMP Team Guide and teams comprised of both Air Force and consultant engineering personnel, each plant is assessed for its environmental compliance well being. In the face of rising operational costs and diminishing budgets ASC/EM performed a comprehensive review of its ECAMP. As a result, the basic ECAMP program was improved to reduce costs without compromising on quality of the effort. The program retained its emphasis in providing a snap-shot evaluation of each Air Force plant's environmental compliance health supported by complete but tailored protocol assessments.

  14. Field Measurements of Efficiency and Duct Effectiveness in Residential Forced Air Distributions Systems

    E-Print Network [OSTI]

    Jump, D.A.

    2011-01-01T23:59:59.000Z

    power for air conditioning, heat pumps and electricwith 13 air conditioners, eight heat pumps (one house hadPre Post * A C : air conditioning, HP : heat pump, GF : gas

  15. Air Force Research Laboratory Placement: Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson

    E-Print Network [OSTI]

    Alpay, S. Pamir

    Air Force Research Laboratory Placement: Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force Base, Dayton OH Discipline(s): Materials science/engineering, chemical. Description: We are looking for a qualified candidate to join our team at the Air Force Research Laboratory

  16. Ellsworth Air Force Base Advanced Metering Project

    Broader source: Energy.gov [DOE]

    Presentation covers the Ellsworth Air Force Base Advanced Metering project and is given at the Spring 2010 Federal Utility Partnership Working Group (FUPWG) meeting in Providence, Rhode Island.

  17. U.S.Air Force Advanced Power

    E-Print Network [OSTI]

    efficiency,improved power distribution,reduced fuel dependency,reduction of noise,heat,and visual signatureU.S.Air Force Advanced Power Technology Office (APTO) U.S.Air Force Advanced Power Technology/Wind Powered Hydrogen Generation for Fuel Cell Applications · Waste-To-Energy APTO/Small Business Innovation

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

    SciTech Connect (OSTI)

    Rudd, A.

    2012-08-01T23:59:59.000Z

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

  19. U.S. Air Force UESCs

    Broader source: Energy.gov [DOE]

    Presentation—given at the Spring 2009 Federal Utility Partnership Working Group (FUPWG) meeting—covers the U.S. Air Force's approval process, submittal requirements, and guidelines for utility energy service contracts (UESCs).

  20. Sponsored by Air Force Research Laboratory

    E-Print Network [OSTI]

    Piao, Daqing

    Sponsored by Air Force Research Laboratory Space Vehicles Directorate Directed Energy Directorate PROGRAM Space Scholars and Directed Energy Scholars The Space Vehicles and Directed Energy Directorates Scholars The Phillips Scholars internship offers an edu- cational and fulfilling summer job experience

  1. Comprehensive Energy Program at Patrick Air Force Base Set to...

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

    Comprehensive Energy Program at Patrick Air Force Base Set to Exceed Energy Goals Comprehensive Energy Program at Patrick Air Force Base Set to Exceed Energy Goals Fact sheet...

  2. Hickam Air Force Base Fuel Cell Vehicles: Early Implementation...

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

    Hickam Air Force Base Fuel Cell Vehicles: Early Implementation Experience Hickam Air Force Base Fuel Cell Vehicles: Early Implementation Experience This report sumarizes early...

  3. Case Study- Hill Air Force Base, Utah

    Broader source: Energy.gov [DOE]

    Energy savings performance contracting at Hill Air Force Base generated much interest during a recent training session on energy management that downlinked 12 Department of Defense sites. Energy systems in 940 buildings on the Base will be upgraded under an 18-year ESPC between the Government and the energy service company, CES/Way. Improvements are distributed over five task orders that will be completed in five years, with CES/Way providing $2.5 million in up-front costs for the first two task orders. Utah Power & Light will provide $8 million in rebates to help cover the contractor's initial investment, maintenance services, and interest costs. The remainder of the costs will be reimbursed from the Government's share of energy savings.

  4. Air Force Enhanced Use Lease | Department of Energy

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

    Air Force Enhanced Use Lease Air Force Enhanced Use Lease Presentation-given at the Fall 2012 Federal Utility Partnership Working Group (FUPWG) meeting-discusses the U.S. Air...

  5. Air Force Achieves Fuel Efficiency through Industry Best Practices...

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

    Air Force Achieves Fuel Efficiency through Industry Best Practices Air Force Achieves Fuel Efficiency through Industry Best Practices Fact sheet offers an overview of the U.S. Air...

  6. UNITED STATES AIR FORCE OUTSIDE THE NATIONAL CAPITAL REGION

    E-Print Network [OSTI]

    program in order to reduce Federal employee's contribution to traffic congestion and air pollutionUNITED STATES AIR FORCE OUTSIDE THE NATIONAL CAPITAL REGION PUBLIC TRANSPORTATION BENEFIT PROGRAM): ____________ City (Residence): __________________________State: _______________ Zip Code: ________________ Air Force

  7. Air Observe System

    E-Print Network [OSTI]

    Alexander Bolonkin

    2007-01-10T23:59:59.000Z

    This manuscript contains a description and basic principles for observing inaccessible areas using low cost, easily deployed equipment. The basic premise is to suspend a tiny video camera at an altitude of 10 - 200 meters over the area to be surveyed. The TV camera supports at altitude by wind or balloon. The technical challenges regard the means by which the camera is suspended. Such a system may be used by military or police forces or by civil authorities for rescue missions or assessment of natural disasters. The method may be further developed for military applications by integrating the surveillance task with deployment of munitions. Key words: air observer, air suspended system, low altitude video observer.

  8. Natural Heritage Inventory of Schriever Air Force Base,

    E-Print Network [OSTI]

    Natural Heritage Inventory of Schriever Air Force Base, El Paso County, Colorado Colorado Natural-491-1309 July 2000 #12;Natural Heritage Inventory of Schriever Air Force Base, El Paso County, Colorado Prepared

  9. E-Print Network 3.0 - air force rethinks Sample Search Results

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

    Joint Program Collection: Environmental Sciences and Ecology 78 Proceedings of Healthy Buildings 2009 Paper 680 Do forced air HVAC systems have a role in healthy homes? Summary:...

  10. E-Print Network 3.0 - air force premier Sample Search Results

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

    Centre de mathmatiques Collection: Mathematics 100 Proceedings of Healthy Buildings 2009 Paper 680 Do forced air HVAC systems have a role in healthy homes? Summary:...

  11. E-Print Network 3.0 - air force installations Sample Search Results

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

    ; Engineering ; Energy Storage, Conversion and Utilization 6 Proceedings of Healthy Buildings 2009 Paper 680 Do forced air HVAC systems have a role in healthy homes? Summary:...

  12. US Air Force Facility Energy Management Program - How Industry Can Help the Air Force Meet Its Objectives

    E-Print Network [OSTI]

    Holden, P. C.; Kroop, R. H.

    1983-01-01T23:59:59.000Z

    This paper describes the Air Force's facility energy management program including how industry can help the Air Force meet its facility energy objectives. Background information on energy use and energy conservation efforts are presented to give...

  13. Sandia National Laboratories: Air Force Research 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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0Energy Advanced Nuclear Energy TheASC ContactAir Force

  14. Geothermal-resource verification for Air Force bases

    SciTech Connect (OSTI)

    Grant, P.R. Jr.

    1981-06-01T23:59:59.000Z

    This report summarizes the various types of geothermal energy reviews some legal uncertainties of the resource and then describes a methodology to evaluate geothermal resources for applications to US Air Force bases. Estimates suggest that exploration costs will be $50,000 to $300,000, which, if favorable, would lead to drilling a $500,000 exploration well. Successful identification and development of a geothermal resource could provide all base, fixed system needs with an inexpensive, renewable energy source.

  15. Force Modulator System

    SciTech Connect (OSTI)

    Redmond Clark

    2009-04-30T23:59:59.000Z

    Many metal parts manufacturers use large metal presses to shape sheet metal into finished products like car body parts, jet wing and fuselage surfaces, etc. These metal presses take sheet metal and - with enormous force - reshape the metal into a fully formed part in a manner of seconds. Although highly efficient, the forces involved in forming metal parts also damage the press itself, limit the metals used in part production, slow press operations and, when not properly controlled, cause the manufacture of large volumes of defective metal parts. To date, the metal-forming industry has not been able to develop a metal-holding technology that allows full control of press forces during the part forming process. This is of particular importance in the automotive lightweighting efforts under way in the US automotive manufacturing marketplace. Metalforming Controls Technology Inc. (MC2) has developed a patented press control system called the Force Modulator that has the ability to control these press forces, allowing a breakthrough in stamping process control. The technology includes a series of hydraulic cylinders that provide controlled tonnage at all points in the forming process. At the same time, the unique cylinder design allows for the generation of very high levels of clamping forces (very high tonnages) in very small spaces; a requirement for forming medium and large panels out of HSS and AHSS. Successful production application of these systems testing at multiple stamping operations - including Ford and Chrysler - has validated the capabilities and economic benefits of the system. Although this technology has been adopted in a number of stamping operations, one of the primary barriers to faster adoption and application of this technology in HSS projects is system cost. The cost issue has surfaced because the systems currently in use are built for each individual die as a custom application, thus driving higher tooling costs. This project proposed to better marry the die-specific Force Modulator technology with stamping presses in the form of a press cushion. This system would be designed to operate the binder ring for multiple parts, thus cutting the per-die cost of the technology. This study reports the results of technology field application. This project produced the following conclusions: (1) The Force Modulator system is capable of operating at very high tempos in the stamping environment; (2) The company can generate substantial, controlled holding tonnage (binder ring pressure) necessary to hold high strength steel parts for proper formation during draw operations; (3) A single system can be designed to operate with a family of parts, thus significantly reducing the per-die cost of a FM system; (4) High strength steel parts made with these systems appear to show significant quality improvements; (5) The amounts of steel required to make these parts is typically less than the amounts required with traditional blank-holding technologies; and (6) This technology will aid in the use of higher strength steels in auto and truck production, thus reducing weight and improving fuel efficiency.

  16. Air Force Announces Funding for Alternative Energy Research & Development

    Broader source: Energy.gov [DOE]

    The Air Force Research Laboratory (AFRL) has released a Broad Area Announcement (BAA) for over $25 million for Alternative Energy Research & Development.

  17. air force materials: Topics by E-print Network

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

    air force materials First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Air Force Research Laboratory...

  18. air force base: Topics by E-print Network

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

    Index 1 Energy Savings Performance Contract- Robins Air Force Base, Georgia Texas A&M University - TxSpace Summary: Due to budgetary constraints and lack of funding for energy...

  19. air force bases: Topics by E-print Network

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

    Index 1 Energy Savings Performance Contract- Robins Air Force Base, Georgia Texas A&M University - TxSpace Summary: Due to budgetary constraints and lack of funding for energy...

  20. air force pilots: Topics by E-print Network

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

    14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 21 The Air Force Research Laboratory (AFRL) Scholars Program is currently Computer Technologies and Information...

  1. air force pilot: Topics by E-print Network

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

    14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 21 The Air Force Research Laboratory (AFRL) Scholars Program is currently Computer Technologies and Information...

  2. Portfolio management in the Air Force : current status and opportunities

    E-Print Network [OSTI]

    Morgan, Dave B

    2011-01-01T23:59:59.000Z

    There are hundreds of weapons programs, under the management of the United States Air Force worth billions of dollars. These programs are being developed to fulfill a need in the U.S. defense strategy. Bringing these weapon ...

  3. ESPC Success Story- Dyess Air Force Base

    Broader source: Energy.gov [DOE]

    Fact sheet describes the Federal Energy Management Program (FEMP) Energy Savings Performance Contract (ESPC) Success Story on water conservation and green energy at Dyess Air Foce Base at Dyess, Texas.

  4. E-Print Network 3.0 - air force personnel Sample Search Results

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

    in an actual Summary: components: personnel and technological interventions. In terms of personnel interventions, the Air Force... of the Air Force's culture and mission,...

  5. E-Print Network 3.0 - air force enlisted Sample Search Results

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

    Summary: , Marines, and Air Force Spend Hundreds of Millions of Dollars Annually on Advertising... clients include the Air Force Reserve, Department of Veteran Affairs and...

  6. E-Print Network 3.0 - air force 611th Sample Search Results

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

    to be a likely driving force... ; these forces may also have been contributing to entrainment of fume hood air into the general room exhaust. 12;... indoor air quality...

  7. E-Print Network 3.0 - air force family Sample Search Results

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

    to be a likely driving force... ; these forces may also have been contributing to entrainment of fume hood air into the general room exhaust. 12;... indoor air quality...

  8. Air heating system

    DOE Patents [OSTI]

    Primeau, John J. (19800 Seminole Rd., Euclid, OH 44117)

    1983-03-01T23:59:59.000Z

    A self-starting, fuel-fired, air heating system including a vapor generator, a turbine, and a condenser connected in a closed circuit such that the vapor output from the vapor generator is conducted to the turbine and then to the condenser where it is condensed for return to the vapor generator. The turbine drives an air blower which passes air over the condenser for cooling the condenser. Also, a condensate pump is driven by the turbine. The disclosure is particularly concerned with the provision of heat exchanger and circuitry for cooling the condensed fluid output from the pump prior to its return to the vapor generator.

  9. Demonstration of Security Benefits of Renewable Generation at FE Warren Air Force Base

    SciTech Connect (OSTI)

    Warwick, William M.; Myers, Kurt; Seifert, Gary

    2010-12-31T23:59:59.000Z

    Report detailing field demonstration of security benefits of renewable generation at FE Warren Air Force Base.

  10. Ventilation Air Preconditioning Systems

    E-Print Network [OSTI]

    Khattar, M.; Brandemuehl, M. J.

    1996-01-01T23:59:59.000Z

    capacity. Optional Morning Warm-up If connected to a liquid condenser bundle, the icemaking chiller can serve as a heat recovery heat pump. The chiller can freeze ice in the early morning to provide heat for morning warm-up, and use the ice... the cooling coil or drain pan re-evaporates and is delivered to occupied space during compressor off-cycles. Although heat recovery between the exhaust air and ventilation air can reduce the impact on the HVAC system, many buildings do not have central...

  11. Electromechanical coupling in free-standing AlGaNGaN planar structures Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force

    E-Print Network [OSTI]

    Pan, Ernie

    Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force Base, Ohio 45433 and Semiconductor Research Center, Wright State University, Dayton, Ohio 45435 J. D. Albrecht Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433 E. Pan Department of Civil Engineering

  12. Energy Efficiency Upgrades for Little Rock Air Force Base

    SciTech Connect (OSTI)

    Goldman, C.; Dunlap, M.A.

    2000-11-13T23:59:59.000Z

    Little Rock Air Force Base (LRAFB), in partnership with the local utility, Entergy Services, Inc., has reduced energy costs and used savings from investments in high-efficiency equipment to maintain and improve the condition of base housing and other facilities. Three projects were completed, with over $10 million invested. Major accomplishments include replacing air-to-air heat pumps with high-efficiency ground-source heat pumps (GSHPs) in more than 1,500 base housing units, lighting modifications to 10 buildings, upgrade of HVAC equipment in the base's enlisted club, and energy-efficient lighting retrofits for LRAFB's flight simulator.

  13. Hill Air Force Base Energy Performance Contract

    E-Print Network [OSTI]

    Leach, M. D.

    the original plants were n t required to meet current ASHRAE 15 standards ~ r refrigerant leak detection and evacuation. The chill r replacement will result in energy savings by utilizi g the more efficient screw-compressor chiller betwe n 30% part load... ed from the system. The concept of this ECM is to redIce stearn distribution pressures to the minimum require to provide necessary steam flow at each of the buildi gs connected on the distribution system, which is curre tly calculated...

  14. Fundamentals of Compressed Air Systems

    Broader source: Energy.gov [DOE]

    Find out how a compressed air system works and the benefits of optimal compressed air system performance. This initial class demonstrates how to compute the current cost of your plant's compressed...

  15. Compressed Air Energy Storage System

    E-Print Network [OSTI]

    Farzad A. Shirazi; Mohsen Saadat; Bo Yan; Perry Y. Li; Terry W. Simon

    /expanders are crucial for the economical viability of a Compressed Air Energy Storage (CAES) system such as the

  16. E-Print Network 3.0 - air force research Sample Search Results

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

    to be a likely driving force... ; these forces may also have been contributing to entrainment of fume hood air into the general room exhaust. 12;... --- Research by...

  17. Literature Review of Fire Ecology and Effects United States Air Force Academy

    E-Print Network [OSTI]

    Literature Review of Fire Ecology and Effects United States Air Force Academy Colorado Springs, Colorado 1997 Report submitted to: U.S. Air Force Academy, Natural Resources Compiled by: Denise Culver

  18. E-Print Network 3.0 - air force aircrew Sample Search Results

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

    search results for: air force aircrew Page: << < 1 2 3 4 5 > >> 1 CAPTAIN BENJAMIN H. SMITH Captain Ben Smith is Recruiting Flight Commander for the Air Force Reserve Officer...

  19. E-Print Network 3.0 - afit air force Sample Search Results

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

    at the Air Force Institute of Technology (AFIT) have developed... on the satellite range scheduling problem, using data from the U.S. Air Force Satellite Control Network; a...

  20. Noxious Weed Survey of the U.S. Air Force Academy and

    E-Print Network [OSTI]

    Noxious Weed Survey of the U.S. Air Force Academy and Farish Outdoor Recreation Area Colorado 80523 http://www.cnhp.colostate.edu April 15, 2003 Prepared For: U.S. Air Force Academy Department ................................................................................................... 5 OTHER RESEARCH AT THE U.S. AIR FORCE ACADEMY AND FARISH OUTDOOR RECREATION AREA

  1. Compressed Air System Optimization

    E-Print Network [OSTI]

    Aegerter, R.

    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...

  2. 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.

    2002-01-01T23:59:59.000Z

    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...

  3. Air conditioning system

    DOE Patents [OSTI]

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

    2005-02-01T23:59:59.000Z

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

  4. Air ejector augmented compressed air energy storage system

    DOE Patents [OSTI]

    Ahrens, Frederick W. (Naperville, IL); Kartsounes, George T. (Naperville, IL)

    1980-01-01T23:59:59.000Z

    Energy is stored in slack demand periods by charging a plurality of underground reservoirs with air to the same peak storage pressure, during peak demand periods throttling the air from one storage reservoir into a gas turbine system at a constant inlet pressure until the air pressure in the reservoir falls to said constant inlet pressure, thereupon permitting air in a second reservoir to flow into said gas turbine system while drawing air from the first reservoir through a variable geometry air ejector and adjusting said variable geometry air ejector, said air flow being essentially at the constant inlet pressure of the gas turbine system.

  5. Air distribution effectiveness with stratified air distribution systems

    E-Print Network [OSTI]

    Chen, Qingyan "Yan"

    1 Air distribution effectiveness with stratified air distribution systems Kisup Lee* Zheng Jiang, Ph.D Qingyan Chen, Ph.D. Student Member ASHRAE Fellow ASHRAE ABSTRACT Stratified air distribution systems such as Traditional Displacement Ventilation (TDV) and Under- Floor Air Distribution (UFAD

  6. Mountain Home Air Force Base, Idaho Geothermal Resource Assessment and Future Recommendations

    SciTech Connect (OSTI)

    Joseph C. Armstrong; Robert P. Breckenridge; Dennis L. Nielson; John W. Shervais; Thomas R. Wood

    2013-03-01T23:59:59.000Z

    The U.S. Air Force is facing a number of challenges as it moves into the future, one of the biggest being how to provide safe and secure energy to support base operations. A team of scientists and engineers met at Mountain Home Air Force Base in early 2011 near Boise, Idaho, to discuss the possibility of exploring for geothermal resources under the base. The team identified that there was a reasonable potential for geothermal resources based on data from an existing well. In addition, a regional gravity map helped identify several possible locations for drilling a new well. The team identified several possible sources of funding for this well—the most logical being to use U.S. Department of Energy funds to drill the upper half of the well and U.S. Air Force funds to drill the bottom half of the well. The well was designed as a slimhole well in accordance with State of Idaho Department of Water Resources rules and regulations. Drilling operations commenced at the Mountain Home site in July of 2011 and were completed in January of 2012. Temperatures increased gradually, especially below a depth of 2000 ft. Temperatures increased more rapidly below a depth of 5500 ft. The bottom of the well is at 5976 ft, where a temperature of about 140°C was recorded. The well flowed artesian from a depth below 5600 ft, until it was plugged off with drilling mud. Core samples were collected from the well and are being analyzed to help understand permeability at depth. Additional tests using a televiewer system will be run to evaluate orientation and directions at fractures, especially in the production zone. A final report on the well exploitation will be forthcoming later this year. The Air Force will use it to evaluate the geothermal resource potential for future private development options at Mountain Home Air Force Base. In conclusion, Recommendation for follow-up efforts include the following:

  7. Energy-conservation study for the US Air Force Academy

    SciTech Connect (OSTI)

    Peterson, J.L.; Davis, L.B.

    1983-01-01T23:59:59.000Z

    The United States Air Force Academy (AFA) has asked the Los Alamos National Laboratory to assist them in conducting detailed energy and solar analyses of selected AFA buildings using the DOE-2 building energy analysis computer program. The results of the energy conservation study conducted by Los Alamos in FY 1981 and 1982 for Building 2360 (Vandenberg Hall), Building 2169 (Field House), and Building 2410 (Aeronautics Laboratory) are presented. Energy Conservation and Solar Opportunities (ECOs) are identified for each building and predicted heating, cooling and electric energy savings are presented for each ECO. Economic results are summarized as annual dollars saved, discounted benefit-to-cost ratio, maximum investment targets, and the life-cycle cost of implementing each ECO.

  8. E-Print Network 3.0 - air force health Sample Search Results

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

    Co-chairs Omar Benjamin, Port of Oakland Summary: health risk resulting from Port-related air pollution. As the scheduled meetings for our task force draws... of task force members...

  9. E-Print Network 3.0 - air force public Sample Search Results

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

    Co-chairs Omar Benjamin, Port of Oakland Summary: health risk resulting from Port-related air pollution. As the scheduled meetings for our task force draws... of task force members...

  10. E-Print Network 3.0 - air force posture Sample Search Results

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

    Summary: on postural and manual control and self-motion perception FRED H. PREVIC Armstrong Laboratory, Brooks Air... was obtained, as required by Air Force Regulation 169-3....

  11. E-Print Network 3.0 - air force medical Sample Search Results

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

    PLAN Project DescriptionTitle as on DD Form 1391 Summary: completion. 6.2.3.1. HQ Air Force Medical Support AgencyHealth Facilities Division (HQ AFMSA... SGMF) is the Air...

  12. Trends and Market Forces Shaping Small Community Air Service in the United States

    E-Print Network [OSTI]

    Wittman, Michael D.

    2013-05-07T23:59:59.000Z

    This report, Trends and Market Forces Shaping Small Community Air Service in the United States, is the first in a series of papers written under the umbrella of the MIT Small Community Air Service White Paper series. The ...

  13. 2013 Data Update: Trends and Market Forces Shaping Small Community Air Service in the United States

    E-Print Network [OSTI]

    Wittman, M.D.

    2014-05-20T23:59:59.000Z

    This document is an update to MIT Small Community Air Service White Paper No. 1—Trends and Market Forces Shaping Small Community Air Service in the United States1. This report provides updated analysis and data appendices ...

  14. E-Print Network 3.0 - air force cambridge Sample Search Results

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

    Search Sample search results for: air force cambridge Page: << < 1 2 3 4 5 > >> 1 Air Pollution Physics and Chemistry EAS 6790 Monday, Wednesday, Friday 2:05 to 2:55...

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

    E-Print Network [OSTI]

    Guang, L.; Li, R.

    2006-01-01T23:59:59.000Z

    This paper presents the principles and the characteristics of a dedicated outdoor air system (DOAS) and low temperature supply air system. DOAS is offered based on the demands of indoor air quality and the low temperature supply air system...

  16. E-Print Network 3.0 - air force acquisition Sample Search Results

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

    Division Collection: Geosciences 56 Ronald Driggers Optical Sciences Division Summary: FLIR Navy: ActivePassive, Large Focal Planes Air Force: Synthetic Aperture Ladar mmW and...

  17. E-Print Network 3.0 - air force eastern Sample Search Results

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

    France... of boundary layer ozone in Asia?" Task Force on Hemispheric Transport of Air Pollution, Hanoi, Vietnam (Oct... Environmental Protection Agency (609) Presenting at the...

  18. E-Print Network 3.0 - air force academy Sample Search Results

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

    France... of boundary layer ozone in Asia?" Task Force on Hemispheric Transport of Air Pollution, Hanoi, Vietnam (Oct... Environmental Protection Agency (609) Presenting at the...

  19. air force bombers: Topics by E-print Network

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

    Engagement Effectiveness 12;Aircrew at Risk The Value of Range, Payload, Precision, and Stealth Bomb Droppers Air Escort Air Defense Suppression Tankers Total Aircrew At Risk...

  20. air force aircraft: Topics by E-print Network

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

    Window Location on a King Air 200 Aircraft:aerosol.atmos.und.edu) Objective A Raytheon Beechcraft King Air 200 aircraft has been used to obtain Condensation Particle...

  1. Innovative pollution prevention program at Air Force owned Raytheon operated facility incorporating Russian technology

    SciTech Connect (OSTI)

    Stallings, J.H.; Cepeda-Calderon, S.

    1999-07-01T23:59:59.000Z

    Air Force Plant 44 in Tucson, Arizona is owned by the Air Force and operated by Raytheon Missile Systems Company. A joint Air Force/Raytheon Pollution Prevention Team operates at AFP 44 with the ultimate goal to minimize or eliminate the use of hazardous substances. The team works together to uncover new technologies and methods that will replace chemicals used in the plant's missile manufacturing facilities. The program maximizes pollution prevention by first eliminating hazardous material use, then chemical recycling, next hazardous waste reduction and finally wastewater treatment and recycling. From fiscal years 1994 through 1997, nine pollution prevention projects have been implemented, totaling $2.6 million, with a payback averaging less than two years. A unique wastewater treatment method has been demonstrated as part of this program. This is electroflotation, a Russian technology which removes dispersed particles from liquid with gas bubbles obtained during water electrolysis. A unit was built in the US which successfully removed organic emulsions from wastewater. Operational units are planned for the removal of waste from waterfall paint booths. The pollution prevention joint team continues to be very active with two projects underway in FY 98 and two more funded for FY 99.

  2. Robins Air Force Base Integrated Resource Assessment. Volume 2, Baseline Detail

    SciTech Connect (OSTI)

    Keller, J.M.; Sullivan, G.P.; Wahlstrom, R.R.; Larson, L.L.

    1993-08-01T23:59:59.000Z

    This report documents the assessment of baseline energy use at Robins Air Force Base (AFB), a US Air Force Materiel Command facility located near Macon, Georgia. This is a companion report to Volume 1, Executive Summary, and Volume 3, Integrated Resource Assessment. The US Air Force Materiel Command (AFMC) has tasked the US Department of Energy (DOE) Federal Energy Management Program (FEMP), supported by the Pacific Northwest Laboratory (PNL), to identify, evaluate, and assist in acquiring all cost-effective energy projects at Robins AFB. This is part of a model program that PNL is designing to support energy-use decisions in the federal sector. This program (1) identifies and evaluates all cost-effective energy projects; (2) develops a schedule at each installation for project acquisition considering project type, size, timing, and capital requirements, as well as energy and dollar savings; and (3) targets 100% of the financing required to implement energy efficiency projects. PNL applied this model program to Robins AFB. The analysis examines the characteristics of electric, natural gas, oil, propane, and wood chip use for fiscal year 1991. The results include energy-use intensities for the facilities at Robins AFB by building type, fuel type, and energy end use. A complete energy consumption reconciliation is presented that accounts for the distribution of all major energy uses and losses among buildings, utilities, and central systems.

  3. Exploration and Resource Assessment at Mountain Home Air Force Base, Idaho Using an Integrated Team Approach

    SciTech Connect (OSTI)

    Joseph C. Armstrong; Robert P. Breckenridge; Dennis L. Nielson; John W. Shervais; Thomas R. Wood

    2012-10-01T23:59:59.000Z

    The U.S. Air Force is facing a number of challenges as it moves into the future, one of the biggest being how to provide safe and secure energy to support base operations. A team of scientists and engineers met at Mountain Home Air Force Base near Boise, Idaho, to discuss the possibility of exploring for geothermal resources under the base. The team identified that there was a reasonable potential for geothermal resources based on data from an existing well. In addition, a regional gravity map helped identify several possible locations for drilling a new well. The team identified several possible sources of funding for this well—the most logical being to use U.S. Department of Energy funds to drill the upper half of the well and U.S. Air Force funds to drill the bottom half of the well. The well was designed as a slimhole well in accordance with State of Idaho Department of Water Resources rules and regulations. Drilling operations commenced at the Mountain Home site in July of 2011 and were completed in January of 2012. Temperatures increased gradually, especially below a depth of 2000 ft. Temperatures increased more rapidly below a depth of 5500 ft. The bottom of the well is at 5976 ft, where a temperature of about 140°C was recorded. The well flowed artesian from a depth below 5600 ft, until it was plugged off with drilling mud. Core samples were collected from the well and are being analyzed to help understand permeability at depth. Additional tests using a televiewer system will be run to evaluate orientation and directions at fractures, especially in the production zone. A final report on the well exploitation will be forthcoming later this year. The Air Force will use it to evaluate the geothermal resource potential for future private development options at Mountain Home AFB.

  4. Magnus air turbine system

    DOE Patents [OSTI]

    Hanson, Thomas F. (24204 Heritage La., Newhall, CA 91321)

    1982-01-01T23:59:59.000Z

    A Magnus effect windmill for generating electrical power is disclosed. A large nacelle-hub mounted pivotally (in Azimuth) atop a support tower carries, in the example disclosed, three elongated barrels arranged in a vertical plane and extending symmetrically radially outwardly from the nacelle. The system provides spin energy to the barrels by internal mechanical coupling in the proper sense to cause, in reaction to an incident wind, a rotational torque of a predetermined sense on the hub. The rotating hub carries a set of power take-off rollers which ride on a stationary circular track in the nacelle. Shafts carry the power, given to the rollers by the wind driven hub, to a central collector or accumulator gear assembly whose output is divided to drive the spin mechanism for the Magnus barrels and the main electric generator. A planetary gear assembly is interposed between the collector gears and the spin mechanism functioning as a differential which is also connected to an auxiliary electric motor whereby power to the spin mechanism may selectively be provided by the motor. Generally, the motor provides initial spin to the barrels for start-up after which the motor is braked and the spin mechanism is driven as though by a fixed ratio coupling from the rotor hub. During high wind or other unusual conditions, the auxiliary motor may be unbraked and excess spin power may be used to operate the motor as a generator of additional electrical output. Interposed between the collector gears of the rotating hub and the main electric generator is a novel variable speed drive-fly wheel system which is driven by the variable speed of the wind driven rotor and which, in turn, drives the main electric generator at constant angular speed. Reference is made to the complete specification for disclosure of other novel aspects of the system such as, for example, the aerodynamic and structural aspects of the novel Magnus barrels as well as novel gearing and other power coupling combination apparatus of the invention. A reading of the complete specification is recommended for a full understanding of the principles and features of the disclosed system.

  5. air force space: Topics by E-print Network

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

    solar air collector PV-panel fannon-return valve DHW tank mantle cold waterhot water roof Solar Energy Centre Denmark Danish Technological Institute SEC-R-29 12;Solar air heating...

  6. Forced Air Systems in High Performance Homes

    Broader source: Energy.gov [DOE]

    This presentation was delivered at the U.S. Department of Energy Building America Technical Update meeting on April 29-30, 2013, in Denver, Colorado.

  7. Supplemental site inspection for Air Force Plant 59, Johnson City, New York, Volume 3: Appendices F-Q

    SciTech Connect (OSTI)

    Nashold, B.; Rosenblatt, D.; Hau, J. [and others

    1995-08-01T23:59:59.000Z

    This summary describes a Supplemental Site Inspection (SSI) conducted by Argonne National Laboratory (ANL) at Air Force Plant 59 (AFP 59) in Johnson City, New York. All required data pertaining to this project were entered by ANL into the Air Force-wide Installation Restoration Program Information System (IRPIMS) computer format and submitted to an appropriate authority. The work was sponsored by the United States Air Force as part of its Installation Restoration Program (IRP). Previous studies had revealed the presence of contaminants at the site and identified several potential contaminant sources. Argonne`s study was conducted to answer questions raised by earlier investigations. This volume consists of appendices F-Q, which contain the analytical data from the site characterization.

  8. Advanced Management of Compressed Air Systems

    Office of Energy Efficiency and Renewable Energy (EERE)

    Find out how a compressed air system works and the benefits of optimal compressed air system performance. This training is designed to help end users as well as industry solution providers learn...

  9. Flying knights or Flying scientists? a cognitive history of the US Air Force Fighter Pilot in air-to-air combat, 1950-1980

    E-Print Network [OSTI]

    Fino, Steven A. (Steven Andrew)

    2014-01-01T23:59:59.000Z

    US Air Force fighter aircraft underwent a remarkable transformation in the period from 1950 to 1980. Whereas the lone fighter pilots of earlier fame relied on the power of their eyesight, the finesse of their piloting ...

  10. A New Contactless Conveyor System for Handling Clean and Delicate Products Using Induced Air Flows

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A New Contactless Conveyor System for Handling Clean and Delicate Products Using Induced Air Flows thanks to an air cushion and induced air flows. A model of the system is established or in semiconductor production processes. Furthermore, dry fric- tion forces are canceled, which enables accurate

  11. E-Print Network 3.0 - air force plant Sample Search Results

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

    coast, where the air, ground- water, and soil can... or may be damaged by the force of rainwater dropping from the roof. Once you know which plants you intend... plants that...

  12. E-Print Network 3.0 - air force wright Sample Search Results

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

    wright Search Powered by Explorit Topic List Advanced Search Sample search results for: air force wright Page: << < 1 2 3 4 5 > >> 1 This article was written by Rich Sutton and...

  13. E-Print Network 3.0 - army air forces Sample Search Results

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

    33 Air Force Reserve Reserve 0 0 1 1 Army Active Active Duty 6 6 11 23 Army ... Source: New Hampshire, University of - Department of Electrical and Computer Engineering,...

  14. Energy Savings Performance Contract- Robins Air Force Base, Georgia

    E-Print Network [OSTI]

    Edge, J. S.

    Due to budgetary constraints and lack of funding for energy savings initiatives, government energy managers are being forced to develop new techniques by which energy savings technologies can be procured. One such mechanism for obtaining energy...

  15. air force office: Topics by E-print Network

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

    Does not include Office of Health Sciences and College Howat, Ian M. 91 Proposal for an Adsorption Solar-Driven Air-Conditioning Unit for Public Offices Texas A&M University -...

  16. air force officer: Topics by E-print Network

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

    Does not include Office of Health Sciences and College Howat, Ian M. 91 Proposal for an Adsorption Solar-Driven Air-Conditioning Unit for Public Offices Texas A&M University -...

  17. Transfer of Air Force technical procurement bid set data to small businesses, using CALS and EDI: Test report

    SciTech Connect (OSTI)

    NONE

    1994-08-15T23:59:59.000Z

    This report documents a test transfer of three Air Force technical procurement bid sets to one large and twelve small businesses, using the Department of Defense (DoD) Continuous Acquisition and Life-cycle Support (CALS) and ANSI ASC X12 Electronic Data Interchange (EDI) standards. The main goal of the test was to evaluate the effectiveness of using CALS technical data within the context of the DoD`s EDI-based standard approach to electronic commerce in procurement, with particular emphasis on receipt and use of the data by small contractors. Air Force procurement data was provided by the Sacramento Air Logistics Center at McClellan Air Force Base; the manufacturing participants were selected from among McClellan`s ``Blue Ribbon`` contractors, located throughout the US. The test was sponsored by the Air Force CALS Test Network, headquartered at Wright-Patterson Air Force Base. The test successfully demonstrated the technical feasibility of including CALS MIL-R-28002 (Raster) engineering data in an EDI Specification/Technical Information transaction set (ANSI ASC X12 841) when issuing electronic requests for quotation to small businesses. In many cases, the data was complete enough for the contractor participant to feel comfortable generating a quote. Lessons learned from the test are being fed back to the CALS and EDI standards organizations, and to future implementors of CALS-EDI based acquisition or contracting systems, which require the transfer of technical information, such as engineering data, manufacturing process data, quality test data, and other product or process data, in the form of a CALS or other digital datafile.

  18. Strategy Guideline: Compact Air Distribution Systems

    SciTech Connect (OSTI)

    Burdick, A.

    2013-06-01T23:59:59.000Z

    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.

  19. Compressed air energy storage system

    DOE Patents [OSTI]

    Ahrens, Frederick W. (Naperville, IL); Kartsounes, George T. (Naperville, IL)

    1981-01-01T23:59:59.000Z

    An internal combustion reciprocating engine is operable as a compressor during slack demand periods utilizing excess power from a power grid to charge air into an air storage reservoir and as an expander during peak demand periods to feed power into the power grid utilizing air obtained from the air storage reservoir together with combustible fuel. Preferably the internal combustion reciprocating engine is operated at high pressure and a low pressure turbine and compressor are also employed for air compression and power generation.

  20. THE PREV AIR SYSTEM, AN OPERATIONAL SYSTEM FOR LARGE SCALE AIR QUALITY FORECASTS OVER EUROPE; APPLICATIONS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    THE PREV AIR SYSTEM, AN OPERATIONAL SYSTEM FOR LARGE SCALE AIR QUALITY FORECASTS OVER EUROPE Author ABSTRACT Since Summer 2003, the PREV'AIR system has been delivering through the Internet1 daily air quality forecasts over Europe. This is the visible part of a wider collaborative project

  1. Industrial Compressed Air System Energy Efficiency Guidebook.

    SciTech Connect (OSTI)

    United States. Bonneville Power Administration.

    1993-12-01T23:59:59.000Z

    Energy efficient design, operation and maintenance of compressed air systems in industrial plants can provide substantial reductions in electric power and other operational costs. This guidebook will help identify cost effective, energy efficiency opportunities in compressed air system design, re-design, operation and maintenance. The guidebook provides: (1) a broad overview of industrial compressed air systems, (2) methods for estimating compressed air consumption and projected air savings, (3) a description of applicable, generic energy conservation measures, and, (4) a review of some compressed air system demonstration projects that have taken place over the last two years. The primary audience for this guidebook includes plant maintenance supervisors, plant engineers, plant managers and others interested in energy management of industrial compressed air systems.

  2. Air Force Academy, Colorado: Energy Resources | 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 Office of InspectorConcentrating SolarElectricEnergy Information LightningAiken Electric CoopCooling: Air

  3. Making Compressed Air System Decisions

    E-Print Network [OSTI]

    Porri, R. E.

    spawned an entire industry dedicated to manufacturing equipment designed to remove moisture, lubricant, particulate and vapor contaminants from compressed air. Purification equipment, such as air dryers and filters, are used alone or in combination... to reduce the amount of contaminants in the compressed air to the desired purity. All compressed ESL-IE-96-04-32 Proceedings from the Eighteenth Industrial Energy Technology Conference, Houston, TX, April 17-18, 1996 air purification equipment requires...

  4. air force materiel: Topics by E-print Network

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

    of index policies MIT - DSpace Summary: As some of the most technically complex systems in the world, United States fighter aircraft require a complex logistics system to...

  5. Sandia National Laboratories: Air Force Research Laboratory Testing

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0Energy Advanced Nuclear Energy TheASC ContactAir

  6. Galileon forces in the Solar System

    E-Print Network [OSTI]

    Melinda Andrews; Yi-Zen Chu; Mark Trodden

    2013-10-14T23:59:59.000Z

    We consider the challenging problem of obtaining an analytic understanding of realistic astrophysical dynamics in the presence of a Vainshtein screened fifth force arising from infrared modifications of General Relativity. In particular, we attempt to solve -- within the most general flat spacetime galileon model -- the scalar force law between well separated bodies located well within the Vainshtein radius of the Sun. To this end, we derive the exact static Green's function of the galileon wave equation linearized about the background field generated by the Sun, for the minimal cubic and maximally quartic galileon theories, and then introduce a method to compute the general leading order force law perturbatively away from these limits. We also show that the same nonlinearities which produce the Vainshtein screening effect present obstacles to an analytic calculation of the galileon forces between closely bound systems within the solar system, such as that of the Earth and Moon. Within the test mass approximation, we deduce that a large enough quartic galileon interaction would suppress the effect on planetary perihelion precession below the level detectable by even the next-generation experiments.

  7. FIELD EXPERIMENTATION OF COTS-BASED UAV NETWORKING Air Force Research Laboratory

    E-Print Network [OSTI]

    Kung, H. T.

    1 of 7 FIELD EXPERIMENTATION OF COTS-BASED UAV NETWORKING Dan Hague Air Force Research Laboratory Vehicles (UAVs). This new capability has inspired many novel application ideas in UAV networking. We argue that field experimentation of UAV networking is essential in collecting link meas- urement data, developing

  8. Unique composition niobium-silicide alloy, plasma melted for the Air Force as part of

    E-Print Network [OSTI]

    Unique composition niobium-silicide alloy, plasma melted for the Air Force as part of advanced investments in metal casting; thermomechanical processing; electrochemistry; powder processing; sol gel Laboratory. Hot and cold rolling of metals is used to meet customer dimensional and crystallographic

  9. A lightning summary and decision model for thunderstorm prediction at Whiteman Air Force Base, Missouri

    E-Print Network [OSTI]

    Bass, Randall Gerald

    1996-01-01T23:59:59.000Z

    A cloud-to-ground lightning summary was developed for a 139xl85 kilometer area centered at Whiteman Air Force Base. Spatial and temporal patterns, and first stroke peak currents were analyzed from 1989-1995. Stability indices were examined...

  10. Economic analysis of coal-fired cogeneration plants for Air Force bases

    SciTech Connect (OSTI)

    Holcomb, R.S.; Griffin, F.P.

    1990-10-01T23:59:59.000Z

    The Defense Appropriations Act of 1986 requires the Department of Defense to use an additional 1,600,000 tons/year of coal at their US facilities by 1995 and also states that the most economical fuel should be used at each facility. In a previous study of Air Force heating plants burning gas or oil, Oak Ridge National Laboratory found that only a small fraction of this target 1,600,000 tons/year could be achieved by converting the plants where coal is economically viable. To identify projects that would use greater amounts of coal, the economic benefits of installing coal-fired cogeneration plants at 7 candidate Air Force bases were examined in this study. A life-cycle cost analysis was performed that included two types of financing (Air Force and private) and three levels of energy escalation for a total of six economic scenarios. Hill, McGuire, and Plattsburgh Air Force Bases were identified as the facilities with the best potential for coal-fired cogeneration, but the actual cost savings will depend strongly on how the projects are financed and to a lesser extent on future energy escalation rates. 10 refs., 11 figs., 27 tabs.

  11. Alternatives to Electric Air Conditioning Systems

    E-Print Network [OSTI]

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

    1988-01-01T23:59:59.000Z

    , and exposed to a purge air stream to remove the moisture. The drier air eliminates the need for low evaporator temperatures, allowing the compressor to operate more efficiently, providing only sensible cooling. The synergy of the desiccant/engine chiller... during the summer, including solar gain and high ambient temperatures, the air conditioning system must also handle the heat generated by lighting, personnel, and office equipment. These internal loads dominate in large buildings, especially where...

  12. Energy Efficiency in Compressed Air Systems

    E-Print Network [OSTI]

    Hingorani, A.; Pavlov, A.

    2010-01-01T23:59:59.000Z

    Energy use in compressed air systems accounts for typically 10% of the total industrial electricity consumption. It also accounts for close to 99% of the CO2 footprint of an air compressor and approximately 80% of the life cycle costs of a...

  13. Advanced Controls for Industrial Compressed Air Systems

    E-Print Network [OSTI]

    Vold, P.; Gabel, S.; Carmichael, L.; Curtner, K.; Cirillo, N. C. Jr.

    at a Goulds Pumps manufacturing plant in Seneca Falls, New York, and is currently undergoing field testing. The compressed air system will optimize the energy efficiency of the 7 compressor system (1,850hp) at Goulds, while reducing system pressure...

  14. Geothermal exploration program, Hill Air Force Base, Davis and Weber Counties, Utah

    SciTech Connect (OSTI)

    Glenn, W.E.; Chapman, D.S.; Foley, D.; Capuano, R.M.; Cole, D.; Sibbett, B.; Ward, S.H.

    1980-03-01T23:59:59.000Z

    Results obtained from a program designed to locate a low- or moderate-temperature geothermal resource that might exist beneath Hill Air Force Base (AFB), Ogden, Utah are discussed. A phased exploration program was conducted at Hill AFB. Published geological, geochemical, and geophysical reports on the area were examined, regional exploration was conducted, and two thermal gradient holes were drilled. This program demonstrated that thermal waters are not present in the shallow subsurface at this site. (MHR)

  15. Compressed Air Systems Audits - Why? And How?

    E-Print Network [OSTI]

    Kemp, H. L.

    2004-01-01T23:59:59.000Z

    % of the compressed air costs, most with little or no capital investment. Almost always, in the event of a capital outlay, energy savings alone afford less than one-year payback. Many energy utility companies energetically support these efforts, and some.... Secondly, join us in the definition of compressed air as a system, the totality of which is comprised of the Supply Side and the Demand Side. The Supply Side is the compressors and their controls, receivers (primary storage tanks), aftercoolers, filters...

  16. Improving Energy Efficiency of Compressed Air System Based on System Audit

    E-Print Network [OSTI]

    Shanghai, Hongbo Qin; McKane, Aimee

    2008-01-01T23:59:59.000Z

    50 compressed air system energy audits completed by Shanghai50 compressed air system energy audits completed by Shanghaiof compressed air energy audits conducted by the Shanghai

  17. Fuel Cell Systems Air Management

    E-Print Network [OSTI]

    Targets Compressor/Expander for Transportation Fuel Cell System 400--$Cost 10-1510-155Turndown Ratio 15 compressor/expander units for direct hydrogen systems. · Need exists for compressor/ expander motor unit hydrogen 500020001000HoursDurability 45125325$/kWCost 325250140W/LPower density Operating on Tier 2

  18. Fault Tolerant Oxygen Control of a Diesel Engine Air System

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Fault Tolerant Oxygen Control of a Diesel Engine Air System Rainer Nitsche Matthias Bitzer control problem of a Diesel engine air system having a jammed Exhaust Gas Recirculation (EGR) valve of the air system. Keywords: Fault tolerant control, Diesel engine, Air system, Model-based trajectory

  19. Application of discrete event simulation techniques for prioritization of U.S. Air Force Military Family Housing Projects

    E-Print Network [OSTI]

    Krukenberg, Harry J.

    1996-01-01T23:59:59.000Z

    This study, through the use of discrete event simulation and modeling, explores various prioritization disciplines for U.S. Air Force Military Family Housing maintenance, repair, and renovation projects. Actual data from the Military Family Housing...

  20. American Recovery and Reinvestment Act (ARRA) Federal Energy Management Program Technical Assistance Project 224 Altus Air Force Base Solar Technologies

    SciTech Connect (OSTI)

    Russo, Bryan J.

    2010-09-30T23:59:59.000Z

    The principal goal of this project was to evaluate altus Air Force Base for building integrated silicon or thin film module photovoltaic opportunities. This report documents PNNL's efforts and documents study conclusions.

  1. The Role of Quantum Vacuum Forces in Microelectromechanical Systems

    E-Print Network [OSTI]

    G. Jordan Maclay

    2006-08-22T23:59:59.000Z

    The presence of boundary surfaces in the vacuum alters the ground state of the quantized electromagnetic field and can lead to the appearance of vacuum forces. In the last decade, landmark measurements of the vacuum stress between conducting uncharged parallel plates (Casimir force) have been made. Recently the first micromachined MEMS (microelectromechanical system) device was fabricated that utilizes the Casimir force between parallel plates. The force dependence allows the device to serve as a highly sensitive position sensor. The are many other examples of quantum vacuum forces and effects besides the well known parallel plate Casimir force. Here we discuss potential roles of quantum vacuum forces and effects in MEMS systems and other systems. With the growing capability in nanofabrication, some of the roles may be actualized in the future. Because of the computational complexity, no theoretical results are yet available for a number of potentially interesting geometries and we can only speculate.

  2. Secondary air injection system and method

    DOE Patents [OSTI]

    Wu, Ko-Jen; Walter, Darrell J.

    2014-08-19T23:59:59.000Z

    According to one embodiment of the invention, a secondary air injection system includes a first conduit in fluid communication with at least one first exhaust passage of the internal combustion engine and a second conduit in fluid communication with at least one second exhaust passage of the internal combustion engine, wherein the at least one first and second exhaust passages are in fluid communication with a turbocharger. The system also includes an air supply in fluid communication with the first and second conduits and a flow control device that controls fluid communication between the air supply and the first conduit and the second conduit and thereby controls fluid communication to the first and second exhaust passages of the internal combustion engine.

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

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

    an advanced gas engine... Lindsay, B. B.; Koplow, M. D. 1988-01-01 46 Compressed Air Energy Savings: SAV-AIR Monitor and Control System and the PNW Compressed Air Challenge...

  4. Air Force program tests production of aviation turbine fuels from Utah and Kentucky bitumens

    SciTech Connect (OSTI)

    Not Available

    1986-09-01T23:59:59.000Z

    Ashland Petroleum Company and Sun Refining and Marketing participated in a US Air Force program to determine the costs, yields, physical characteristics, and chemical properties of aviation turbine fuels, Grades JP-4 and JP-8, produced from Kentucky and Utah bitumens. The processes used by both are summarized; Ashland used a different approach for each bitumen; Sun's processing was the same for both, but different from Ashland's. Chemical and physical properties are tabulated for the two raw bitumens. Properties of the eight fuels produced are compared with specification for similar type aviation turbine fuels.

  5. Summary and evaluation of hydraulic property data available for Eielson Air Force Base, Alaska

    SciTech Connect (OSTI)

    Spane, F.A. Jr.; Thorne, P.D.

    1994-07-01T23:59:59.000Z

    Most of the contaminant source areas at Eielson Air Force Base are located above an unconfined alluvial aquifer with relatively high hydraulic conductivity. Hydraulic tests that have been conducted on wells at the base were evaluated, and in some cases reanalyzed, to determine hydraulic conductivity and specific yield for the aquifer. The reviewed tests included 2 multiple-well pumping tests and 30 slug tests. One slug test was conducted on a well in the bedrock aquifer at Site 38. All the other tests were conducted on the alluvial aquifer.

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

    E-Print Network [OSTI]

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

    2006-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Wang, J.; Yan, Z.

    2006-01-01T23:59:59.000Z

    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...

  8. Patrick Air Force Base integrated resource assessment. Volume 3, Resource assessment

    SciTech Connect (OSTI)

    Sandusky, W.F.; Parker, S.A.; King, D.A.; Wahlstrom, R.R.; Elliott, D.B.; Shankle, S.A.

    1993-12-01T23:59:59.000Z

    The US Air Force has tasked the Pacific Northwest Laboratory (PNL) in support of the US Department of Energy Federal Energy Management Program to identify, evaluate, and assist in acquiring all cost effective energy projects at Patrick Air Force Base (AFB). This is part of a model program that PNL is designing to support energy-use decisions in the federal sector. This report provides the results of the fossil fuel and electric energy resource opportunity (ERO) assessments performed by PNL at Patrick AFB which is located south of Cocoa Beach, Florida. It is a companion report to Volume 1, Executive Summary, and Volume.2, Baseline Detail. The results of the analyses of EROs are presented in 11 common energy end-use categories. A narrative description of each ERO is provided, including information on the installed cost, energy and dollar savings, impacts on operations and maintenance, and, when applicable, a discussion of energy supply and demand, energy security, and environmental issues. A description of the evaluation methodologies and technical and cost assumptions is also provided for each ERO. Summary tables present the cost-effectiveness of energy end-use equipment before and after the implementation of each ERO and present the results of the life-cycle cost analysis indicating the net present value and value index of each ERO.

  9. Robins Air Force Base integrated resource assessment. Volume 3, Resource assessment

    SciTech Connect (OSTI)

    Sullivan, G.P.; Keller, J.M.; Stucky, D.J.; Wahlstrom, R.R.; Larson, L.L.

    1993-10-01T23:59:59.000Z

    The US Air Force Materiel Command (AFMC) has tasked the US Department of Energy (DOE) Federal Energy Management Program (FEMP), supported by the Pacific Northwest Laboratory (PNL), to identify, evaluate, and assist in acquiring all cost-effective energy projects at Robins Air Force Base (AFB). This is part of a model program that PNL is designing to support energy-use decisions in the federal sector. This report provides the results of the fossil fuel and electric energy resource opportunity (ERO) assessments performed by PNL at the AFMC Robins AFB facility located approximately 15 miles south of Macon, Georgia. It is a companion report to Volume 1, Executive Summary, and Volume 2, Baseline Detail. The results of the analyses of EROs are presented in 13 common energy end-use categories (e.g., boilers and furnaces, service hot water, and building lighting). A narrative-description of each ERO is provided, including information on the installed cost, energy and dollar savings; impacts on operation and maintenance (O&M); and, when applicable, a discussion of energy supply and demand, energy security, and environmental issues. A description of the evaluation methodologies and technical and cost assumptions is also provided for each ERO. Summary tables present the cost-effectiveness of energy end-use equipment before and after the implementation of each ERO and present the results of the life-cycle cost (LCC) analysis indicating the net present value (NPV) and savings to investment ratio (SIR) of each ERO.

  10. Operable Unit 1 remedial investigation report, Eielson Air Force Base, Alaska

    SciTech Connect (OSTI)

    Gilmore, T.J.; Fruland, R.M.; Liikala, T.L. [and others

    1994-06-01T23:59:59.000Z

    This remedial investigation report for operable Unit 1 (OU-1) at Eielson Air Force Base presents data, calculations, and conclusions as to the nature and extent of surface and subsurface contamination at the eight source areas that make up OU-1. The information is based on the 1993 field investigation result and previous investigations. This report is the first in a set of three for OU-1. The other reports are the baseline risk assessment and feasibility study. The information in these reports will lead to a Record of Decision that will guide and conclude the environmental restoration effort for OU-1 at Eielson Air Force Base. The primary contaminants of concern include fuels and fuel-related contaminants (diesel; benzene, toluene, ethylbenzene, and xylene; total petroleum hydrocarbon; polycyclic aromatic hydrocarbons), maintenance-related solvents and cleaners (volatile chlorinated hydrocarbons such as trichloroothylene), polychlorinated biphenyls, and dichlorodiphenyltrichloroethane (DDT). The origins of contaminants of concern include leaks from storage tanks, drums and piping, and spills. Ongoing operations and past sitewide practices also contribute to contaminants of concern at OU-1 source areas. These include spraying mixed oil and solvent wastes on unpaved roads and aerial spraying of DDT.

  11. Fall 1994 wildlife and vegetation survey, Norton Air Force Base, California

    SciTech Connect (OSTI)

    Not Available

    1994-12-15T23:59:59.000Z

    The fall 1994 wildlife and vegetation surveys were completed October 3-7, 1994, at Norton Air Force Base (AFB), California. Two biologists from CDM Federal Programs, the U.S. Environmental Protection Agency (EPA) regional biologist and the Oak Ridge National Laboratory (ORNL) lead biologist conducted the surveys. A habitat assessment of three Installation Restoration Project (IRP) sites at Norton Air Force Base was also completed during the fall survey period. The IRP sites include: Landfill No. 2 (Site 2); the Industrial Wastewater Treatment Plant (IWTP) area; and Former Fire Training Area No. 1 (Site 5). The assessments were designed to qualitatively characterize the sites of concern, identify potential ecological receptors, and provide information for Remedial Design/Remedial Action activities. A Reference Area (Santa Ana River Wash) and the base urban areas were also characterized. The reference area assessment was performed to provide a baseline for comparison with the IRP site habitats. The fall 1994 survey is the second of up to four surveys that may be completed. In order to develop a complete understanding of all plant and animal species using the base, these surveys were planned to be conducted over four seasons. Species composition can vary widely during the course of a year in Southern California, and therefore, seasonal surveys will provide the most complete and reliable data to address changes in habitat structure and wildlife use of the site. Subsequent surveys will focus on seasonal wildlife observations and a spring vegetation survey.

  12. HEDL air filter examination system software

    SciTech Connect (OSTI)

    Stapleton, E.E.

    1984-10-01T23:59:59.000Z

    This document describes the system software and operation of the Hanford Engineering Development Laboratory (HEDL) air filter sample counting systems. Included are a description of how each program functions with flow charts, sample printouts, program listings and a listing with comments of test routines that exercise the hardware. This effort is a result of a work order from HEDL Operational Safety to the Instrument Calibration and Evaluations section of the Pacific Northwest Laboratory (PNL) to upgrade the HEDL counting systems to include standardization, radon subtraction, and detector cooling.

  13. An overview of the Noncyanide Metal Stripper program conducted at Kelly Air Force Base

    SciTech Connect (OSTI)

    Argyle, M.D.; Cowan, R.L.

    1995-01-01T23:59:59.000Z

    The Noncyanide Metal Stripper Program was a waste minimization effort aimed at identifying and testing suitable noncyanide stripping solutions that could replace the cyanide stripping solutions found in the United States Air Force (USAF) Air Logistics Centers (ALC). The program started with laboratory testing of commercial stripping solutions. The performance of these solutions was compared with the cyanide process solutions C-101 and C-106 targeted for replacement. Plate metal stripping rate, basis metal corrosion, and compatibility with masking materials and biodegradability were all used to determine the performance of each product. Those products that passed the acceptance criteria were field tested using 25 to 50-gallon solutions to determine optimum operating conditions, stripper maintenance requirements, and maximum solution loading and longevity. The program included investigating any adverse effects these new products might have on existing chemical and biological waste treatment processes. All cyanide stripping solutions at the San Antonio Air Logistics Command Center have been successfully replaced with commercial noncyanide products. Generally, these replacements were less toxic and generated less waste and had longer lifetimes than their cyanide counterparts.

  14. air suspension system: Topics by E-print Network

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

    and Comparison of Waste Water Resource Heat Pump Heating and Air-Conditioning System Texas A&M University - TxSpace Summary: Based on the heating and air-conditioning system...

  15. air suspension systems: Topics by E-print Network

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

    and Comparison of Waste Water Resource Heat Pump Heating and Air-Conditioning System Texas A&M University - TxSpace Summary: Based on the heating and air-conditioning system...

  16. Solving an Air Conditioning System Problem using Constraint Satisfaction

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Solving an Air Conditioning System Problem using Constraint Satisfaction Raphaël Chenouard1 An air conditioning system problem 1.1 Context The design process is a sequence of phases ranging from States (2007)" DOI : 10.1007/978-3-540-74970-7_4 #12;In this paper, an air conditioning system (ACS

  17. Attempt to estimate measurement uncertainty in the Air Force Toxic Chemical Dispersion (AFTOX) model. Master's thesis

    SciTech Connect (OSTI)

    Zettlemoyer, M.D.

    1990-01-01T23:59:59.000Z

    The Air Force Toxic Chemical Dispersion (AFTOX) model is a Gaussian puff dispersion model that predicts plumes, concentrations, and hazard distances of toxic chemical spills. A measurement uncertainty propagation formula derived by Freeman et al. (1986) is used within AFTOX to estimate resulting concentration uncertainties due to the effects of data input uncertainties in wind speed, spill height, emission rate, and the horizontal and vertical Gaussian dispersion parameters, and the results are compared to true uncertainties as estimated by standard deviations computed by Monte Carlo simulations. The measurement uncertainty uncertainty propagation formula was found to overestimate measurement uncertainty in AFTOX-calculated concentrations by at least 350 percent, with overestimates worsening with increasing stability and/or increasing measurement uncertainty.

  18. Vandenberg Air Force Base integrated resource assessment. Volume 3, Resource assessment

    SciTech Connect (OSTI)

    Daellenbach, K.K.; Dagle, J.E.; Dittmer, A.L.; Elliott, D.B.; Halverson, M.A.; Hickman, B.J.; Parker, G.B.; Richman, E.E.; Shankle, S.A.

    1993-06-01T23:59:59.000Z

    The US Air Force Space Command (SPACECOM) has tasked the Pacific Northwest Laboratory (PNL), as the lead laboratory supporting the US Department of Energy (DOE) Federal Energy Management Program (FEMP), to identify, evaluate, and assist in acquiring all cost-effective energy projects at Vandenberg Air Force Base (VAFB). This is part of a model program that PNL is designing to support energy-use decisions in the federal sector. This report provides the results of the fossil fuel and electric energy resource opportunity (ERO) assessments performed by PNL at the SPACECOM VAFB facility located approximately 50 miles northwest of Santa Barbara, California. It is a companion report to Volume 1, Executive Summary, and Volume 2, Baseline Detail. The results of the analysis of EROs are presented in ten common energy end-use categories (e.g., boilers and furnaces, service hot water, and building lighting). In addition, a case study of process loads at Space Launch Complex-4 (SLC-4) is included. A narrative description of each ERO is provided, including information on the installed cost, energy and dollar savings; impacts on operation and maintenance (O and M); and, when applicable, a discussion of energy supply and demand, energy security, and environmental issues. A description of the evaluation methodologies and technical and cost assumptions is also provided for each ERO. Summary tables present the cost-effectiveness of energy end-use equipment before and after the implementation of each ERO and present the results of the life-cycle cost (LCC) analysis indicating the net present value (NPV) and value index (VI) of each ERO. Finally, an appendix includes a summary of an economic analysis case study of the South Vandenberg Power Plant (SVPP) operating scenarios.

  19. Cape Canaveral Air Force Station integrated resource assessment. Volume 3, Resource assessment

    SciTech Connect (OSTI)

    Sandusky, W.F.; Eichman, C.J.; King, D.A.; McMordie, K.L.; Parker, S.A.; Shankle, S.A.; Wahlstrom, R.R.

    1994-03-01T23:59:59.000Z

    The U.S. Air Force (USAF) has tasked the Pacific Northwest Laboratory (PNL) in support of the U.S. Department of Energy (DOE) Federal Energy Management Program (FEMP), to identify, evaluate, and assist in acquiring all cost-effective energy projects at Cape Canaveral Air Force Station (AFS). Projects considered can be either in the form of energy management or energy conservation. The overall efforts of this task are based on a model program PNL is designing to support energy-use decisions in the federal sector. This report provides the results of the fossil fuel and electric energy resource opportunity (ERO) assessments performed by PNL at Cape Canaveral AFS, which is located approximately 10 miles north of Cocoa Beach, Florida. It is a companion report to Volume 1: Executive Summary and Volume 2: Baseline Detail. The results of the analyses of EROs are presented in 11 common energy end-use categories (e.g., boilers and furnaces, service hot water, and building lighting). A narrative description of each ERO is provided, including information on the installed cost, energy and dollar savings, impacts on operations and maintenance (O&M), and, when applicable, a discussion of energy supply and demand, energy security, and environmental issues. Descriptions of the evaluation methodologies and technical and cost assumptions are also provided for each ERO. Summary tables present the cost- effectiveness of energy end-use equipment before and after the implementation of each ERO and present the results of the life-cycle cost (LCC) analysis, indicating the net present value (NPV) and savings-to-investment ratio (SIR) of each ERO.

  20. Vandenberg Air Force Base integrated resource assessment. Volume 2, Baseline detail

    SciTech Connect (OSTI)

    Halverson, M.A.; Richman, E.E.; Dagle, J.E.; Hickman, B.J.; Daellenbach, K.K.; Sullivan, G.P.

    1993-06-01T23:59:59.000Z

    The US Air Force Space Command has tasked the Pacific Northwest Laboratory, as the lead laboratory supporting the US Department of Energy Federal Energy Management Program, to identify, evaluate, and assist in acquiring all cost-effective energy projects at Vandenberg Air Force Base (VAFB). This is a model program PNL is designing for federal customers served by the Pacific Gas and Electric Company (PG and E). The primary goal of the VAFB project is to identify all electric energy efficiency opportunities, and to negotiate with PG and E to acquire those resources through a customized demand-side management program for its federal clients. That customized program should have three major characteristics: (1) 100% up-front financing; (2) substantial utility cost-sharing; and (3) utility implementation through energy service companies under contract to the utility. A similar arrangement will be pursued with Southern California Gas for non-electric resource opportunities if that is deemed desirable by the site and if the gas utility seems open to such an approach. This report documents the assessment of baseline energy use at VAFB located near Lompoc, California. It is a companion report to Volume 1, Executive Summary, and Volume 3, Resource Assessment. This analysis examines the characteristics of electric, natural gas, fuel oil, and propane use for fiscal year 1991. It records energy-use intensities for the facilities at VAFB by building type and energy end use. It also breaks down building energy consumption by fuel type, energy end use, and building type. A more complete energy consumption reconciliation is presented that includes the accounting of all energy use among buildings, utilities, and applicable losses.

  1. Mechanical Air Distribution Interactions with the House System in Hot and Humid Climates

    E-Print Network [OSTI]

    Garrett, D. A.

    1994-01-01T23:59:59.000Z

    and the resulting air flows that are occurring in our homes. These powerful driving forces or pressures are caused by the fans in HVAC systems and venting appliances. Other contributory factors are today's tight building envelopes. door closure and badly leaking...

  2. Solar air heating system for combined DHW and space heating

    E-Print Network [OSTI]

    Solar air heating system for combined DHW and space heating solar air collector PV-panel fannon-return valve DHW tank mantle cold waterhot water roof Solar Energy Centre Denmark Danish Technological Institute SEC-R-29 #12;Solar air heating system for combined DHW and space heating Søren �stergaard Jensen

  3. Systematic method for the condition assessment of central heating plants in Air Force Logistics Command. Master's thesis

    SciTech Connect (OSTI)

    Starmack, G.J.

    1990-09-01T23:59:59.000Z

    Air Force Logistics Command (AFLC), facing decreasing funds and aging utility systems, needed a method to objectively rate its central heating plants. Such a rating system would be used to compare heating plants throughout the command to identify potential problem areas and prioritize major repair projects. This thesis used a Delphi questionnaire to gather opinions from heating plant experts in order to identify and prioritize components considered most critical to overall plant operation. In addition, the experts suggested measurements which could be used to evaluate component conditions. By combining expert opinions and reading from technical literature, component model rating schemes were developed for AFLC's steam and high temperature hot water plants. Based on measurements and observations of critical components in the plant, a score between 0 and 100 is assigned to each component (for example, condensate piping, deaerator, etc.), each plant subsystem (distribution system, water treatment system, etc.), and to the plant as a whole. These component model rating schemes and the resultant overall condition index scores will enable AFLC to focus their management attention and allocate needed resources to the plants in greatest need of repair.

  4. air cooling system: Topics by E-print Network

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

    coil unit (FCU) and 100% fresh air are used... Mohamed, E.; Abdalla, K. N. 2010-01-01 8 Cold side thermal energy storage system for improved operation of air cooled power plants...

  5. air cooling systems: Topics by E-print Network

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

    coil unit (FCU) and 100% fresh air are used... Mohamed, E.; Abdalla, K. N. 2010-01-01 8 Cold side thermal energy storage system for improved operation of air cooled power plants...

  6. Commissioning and Diagnosis of VAV Air-Conditioning Systems

    E-Print Network [OSTI]

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

    2006-01-01T23:59:59.000Z

    This paper presents a fault detection and diagnosis (FDD) strategy based on system knowledge, qualitative states and object-oriented statistical process control (SPC) models for typical pressure-independent variable air volume (VAV) air...

  7. Burner Designs and Controls for Variable Air Preheat Systems

    E-Print Network [OSTI]

    Lied, C. R.

    1981-01-01T23:59:59.000Z

    and batch type melting operations resulting in cyclic or variable air preheat temperatures will be discussed. Fuel savings relating to the use of recuperation and various types of fuel/air ratio systems will also be discussed....

  8. E-Print Network 3.0 - air force landfill Sample Search Results

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

    Driving Forces towards Materials... lack of Waste-to-Energy capacity. 12;9 Austria As Germany, but Ban in force already in 2002. Landfill... Landfill Ban in force already in...

  9. E-Print Network 3.0 - air force engineering Sample Search Results

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

    Summary: the Performance of the Air Curtain in a Refrigerated Display Case," Journal of Fluids Engineering, Vol. 124, No. 3... , E., "Entrainment by a Refrigerated Air Curtain...

  10. E-Print Network 3.0 - air force journal Sample Search Results

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

    although these types of interaction... -fluid interaction based on the Smoothed Particle Hydro- dynamics (SPH) method. For the simulation of air... -water interaction, air...

  11. E-Print Network 3.0 - air force range Sample Search Results

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

    Colorado State University Collection: Geosciences 70 Water Modeling of Steel Flow, Air Entrainment and Filtration Summary: Water Modeling of Steel Flow, Air Entrainment and...

  12. E-Print Network 3.0 - air force institute Sample Search Results

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

    University Collection: Materials Science ; Engineering 63 Water Modeling of Steel Flow, Air Entrainment and Filtration Summary: Water Modeling of Steel Flow, Air Entrainment and...

  13. E-Print Network 3.0 - air force handbook Sample Search Results

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

    Chemistry, University of Kansas Collection: Chemistry 18 Water Modeling of Steel Flow, Air Entrainment and Filtration Summary: Water Modeling of Steel Flow, Air Entrainment and...

  14. E-Print Network 3.0 - air force experience Sample Search Results

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

    of Chemistry, University of Sydney Collection: Chemistry 70 Water Modeling of Steel Flow, Air Entrainment and Filtration Summary: air entrainment rate on Z. It is suggested to...

  15. Operation technology of air treatment system in nuclear facilities

    E-Print Network [OSTI]

    Chun, Y B; Hwong, Y H; Lee, H K; Min, D K; Park, K J; Uom, S H; Yang, S Y

    2001-01-01T23:59:59.000Z

    Effective operation techniques were reviewed on the air treatment system to protect the personnel in nuclear facilities from the contamination of radio-active particles and to keep the environment clear. Nuclear air treatment system consisted of the ventilation and filtering system was characterized by some test. Measurement of air velocity of blowing/exhaust fan in the ventilation system, leak tests of HEPA filters in the filtering, and measurement of pressure difference between the areas defined by radiation level were conducted. The results acquired form the measurements were reflected directly for the operation of air treatment. In the abnormal state of virus parts of devices composted of the system, the repairing method, maintenance and performance test were also employed in operating effectively the air treatment system. These measuring results and techniques can be available to the operation of air treatment system of PIEF as well as the other nuclear facilities in KAERI.

  16. Residential Forced Air System Cabinet Leakage and Blower Performance

    E-Print Network [OSTI]

    Walker, Iain S.

    2010-01-01T23:59:59.000Z

    Plan goals of net zero energy new homes by 2020, as well as Plan goals of net zero energy new homes by 2020, as well as 

  17. Residential Forced Air System Cabinet Leakage and Blower Performance

    E-Print Network [OSTI]

    Walker, Iain S.

    2010-01-01T23:59:59.000Z

    Strategic Plan goals of net zero energy new homes by 2020, Strategic Plan goals of net zero energy new homes by 2020, 

  18. Residential Forced Air System Cabinet Leakage and Blower Performance

    E-Print Network [OSTI]

    Walker, Iain S.

    2010-01-01T23:59:59.000Z

    for two?speed furnaces with BPM  motors in low speed/low speed/high fire rate operation with BPM blowers and PSC and Brushless Permanent Magnet (BPM).   PSC’s are the  most 

  19. Closed-loop air cooling system for a turbine engine

    DOE Patents [OSTI]

    North, William Edward (Winter Springs, FL)

    2000-01-01T23:59:59.000Z

    Method and apparatus are disclosed for providing a closed-loop air cooling system for a turbine engine. The method and apparatus provide for bleeding pressurized air from a gas turbine engine compressor for use in cooling the turbine components. The compressed air is cascaded through the various stages of the turbine. At each stage a portion of the compressed air is returned to the compressor where useful work is recovered.

  20. DESIGN AND CONSTRUCTION OF A FORCE-REFLECTING TELEOPERATION SYSTEM

    SciTech Connect (OSTI)

    M.A. Ebadian, Ph.D.

    1999-01-01T23:59:59.000Z

    For certain applications, such as space servicing, undersea operations, and hazardous material handling tasks in nuclear reactors, the environments can be uncertain, complex, and hazardous. Lives may be in danger if humans were to work under these conditions. As a result, a man-machine system--a teleoperator system--has been developed to work in these types of environments. In a typical teleoperator system, the actual system operates at a remote site; the operator located away from this system usually receives visual information from a video image and/or graphical animation on the computer screen. Additional feedback, such as aural and force information, can significantly enhance performance of the system. Force reflection is a type of feedback in which forces experienced by the remote manipulator are fed back to the manual controller. Various control methods have been proposed for implementation on a teleoperator system. In order to examine different control schemes, a one Degree-Of-Freedom (DOF) Force-Reflecting Manual Controller (FRMC) is constructed and integrated into a PC. The system parameters are identified and constructed as a mathematical model. The Proportional-Integral-Derivative (PID) and fuzzy logic controllers are developed and tested experimentally. Numerical simulation results obtained from the mathematical model are compared with those of experimental data for both types of controllers. In addition, the concept of a telesensation system is introduced. A telesensation system is an advanced teleoperator system that attempts to provide the operator with sensory feedback. In this context, a telesensation system integrates the use of a Virtual Reality (VR) unit, FRMC, and Graphical User Interface (GUI). The VR unit is used to provide the operator with a 3-D visual effect. Various commercial VR units are reviewed and features compared for use in a telesensation system. As for the FRMC, the conceptual design of a 3-DOF FRMC is developed in an effort to make the system portable, compact, and lightweight. A variety of design alternatives are presented and evaluated. Finally, a GUI software package is developed to interface with several teleoperation unit components. These components include an industrial robot, electric motor, encoder, force/torque sensor, and CCD camera. The software includes features such as position scaling, force scaling, and rereferencing and is intended to provide a sound basis for the development of a multi-DOF FRMC system in the future.

  1. Energy efficiency improvements in Chinese compressed air systems

    E-Print Network [OSTI]

    McKane, Aimee; Li, Li; Li, Yuqi; Taranto, T.

    2008-01-01T23:59:59.000Z

    Air Systems, Paper #071 Energy efficiency improvements into increase industrial energy efficiency. As a result, morein use. Over time, energy efficiency decreases and the cost

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

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

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

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

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

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

  4. Cooperative Control of Air Flow for HVAC Systems

    E-Print Network [OSTI]

    Shuai, Liu; Lihua, Xie

    2013-01-01T23:59:59.000Z

    in a variable air volume HVAC system,” Energy, vol. 21, no.Global optimization for overall HVAC systems-part I problemGlobal optimization for overall HVAC systems-part II problem

  5. Identifying Efficiency Degrading Faults in Split Air Conditioning Systems

    E-Print Network [OSTI]

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

    2013-01-01T23:59:59.000Z

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

  6. Energy performance of underfloor air distribution systems

    E-Print Network [OSTI]

    Bauman, Fred; Webster, Tom; Linden, Paul; Buhl, Fred

    2007-01-01T23:59:59.000Z

    Underfloor Air Distribution (UFAD) Design Guide.  Atlanta: distribution, UFAD, EnergyPlus, EnergyPlus/UFAD, energy  modeling, design design calculations must account for the distribution of 

  7. Ventilation System Effectiveness and Tested Indoor Air Quality Impacts

    SciTech Connect (OSTI)

    Rudd, A.; Bergey, D.

    2014-02-01T23:59:59.000Z

    Ventilation system effectiveness testing was conducted at two unoccupied, single-family, detached lab homes at the University of Texas - Tyler. Five ventilation system tests were conducted with various whole-building ventilation systems. Multizone fan pressurization testing characterized building and zone enclosure leakage. PFT testing showed multizone air change rates and interzonal airflow. Cumulative particle counts for six particle sizes, and formaldehyde and other Top 20 VOC concentrations were measured in multiple zones. The testing showed that single-point exhaust ventilation was inferior as a whole-house ventilation strategy. It was inferior because the source of outside air was not direct from outside, the ventilation air was not distributed, and no provision existed for air filtration. Indoor air recirculation by a central air distribution system can help improve the exhaust ventilation system by way of air mixing and filtration. In contrast, the supply and balanced ventilation systems showed that there is a significant benefit to drawing outside air from a known outside location, and filtering and distributing that air. Compared to the Exhaust systems, the CFIS and ERV systems showed better ventilation air distribution and lower concentrations of particulates, formaldehyde and other VOCs. System improvement percentages were estimated based on four System Factor Categories: Balance, Distribution, Outside Air Source, and Recirculation Filtration. Recommended System Factors could be applied to reduce ventilation fan airflow rates relative to ASHRAE Standard 62.2 to save energy and reduce moisture control risk in humid climates. HVAC energy savings were predicted to be 8-10%, or $50-$75/year.

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

    DOE Patents [OSTI]

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

    1998-01-01T23:59:59.000Z

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

  9. Conserve Energy by Optimizing Air Compressor System

    E-Print Network [OSTI]

    Williams, V. A.

    is the compressed air plant(s), cating air compressors with one 60-hp and one 30-hp which many times include compressors, ancillary screw compressor; (2) the repiping of the existing equipment, and/or an operating sequence that is screw compressors cooling water...

  10. Major: Ecological Systems Design, Air Quality Control and Waste Management

    E-Print Network [OSTI]

    Giger, Christine

    1 Major: Ecological Systems Design, Air Quality Control and Waste Management · Being able to solve control technologies · Knowledge in waste management and technologies Module 1: Ecological Systems Design quality control and biogas Waste management and air quality control Examples for combination of Modules

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

    E-Print Network [OSTI]

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

    2012-01-01T23:59:59.000Z

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

  12. An Integrated Air Handling Unit System for Large Commercial Buildings

    E-Print Network [OSTI]

    Song, L.; Liu, M.

    2001-01-01T23:59:59.000Z

    are developed to compare the energy performance and indoor air quality between the OAHU and conventional AHU systems (single AHU). The OAHU uses significantly less energy than the conventional system in both winter and summer. The OAHU also provides better...

  13. Innovative Systems for Solar Air Conditioning of Buildings

    E-Print Network [OSTI]

    Kessling, W.; Peltzer, M.

    2004-01-01T23:59:59.000Z

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

  14. air defense system: Topics by E-print Network

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

    system. Much is now known about the post-September Wang, Hai 377 Numerical Analysis of Heat and Moisture Transfer in Underground Air-conditioning Systems Texas A&M University -...

  15. air defense systems: Topics by E-print Network

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

    system. Much is now known about the post-September Wang, Hai 377 Numerical Analysis of Heat and Moisture Transfer in Underground Air-conditioning Systems Texas A&M University -...

  16. Efficiency of compressed-air systems. Final report

    SciTech Connect (OSTI)

    Not Available

    1983-01-01T23:59:59.000Z

    The program undertaken by this contract is intended to quantify the current state of knowledge in American industry concerning the energy efficient design and operation of industrial compressed air systems and system components. Since there is no standard reference for designers and operators of compressed air systems which provides guidelines for maximizing the energy efficiency of these systems, a major product of this contract was the preparation of a guidebook for this purpose.

  17. Understanding the Basics of Compressed Air Systems

    E-Print Network [OSTI]

    Herron, D. J.

    , contaminated filters, conversion to electrically operated hoists, and the use of centrifugal fans or compressed air with pressure regulators to purge control cabinets. Finally, a review of compressor technologies with typical cfm, pressure ranges, and price...

  18. System Transition: Dynamics of Change in the US Air TransportationSystem

    E-Print Network [OSTI]

    de Weck, Olivier L.

    System Transition: Dynamics of Change in the US Air TransportationSystem by Aleksandra L Education Committee #12;#12;System Transition: Dynamics of Change in the US Air Transportation System of the requirements for the degree of Doctor of Philosophy in Technology, Management, and Policy Abstract The US Air

  19. E-Print Network 3.0 - air force nuclear Sample Search Results

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

    TO THE UNIVERSITY Summary: of the Prime Minister's Task Force that reviewed issues of uranium mining, processing and nuclear energy... George Dracoulis Professor George...

  20. E-Print Network 3.0 - air force fuels Sample Search Results

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

    Forces' already sizable annual fuel costs by 600 million.7... , Airline Officials Sign Alternative ... Source: DOE Office of Energy Efficiency and Renewable Energy, Hydrogen,...

  1. E-Print Network 3.0 - air force memorandum Sample Search Results

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

    for improvement. In addition there are many collaborative working groups and task forces that meet often... 's Memorandum of Understanding FDP Terms and Conditions...

  2. E-Print Network 3.0 - air force logistics Sample Search Results

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

    Sea Boundary SEASHIELD Ship Shock and Vibration... of Graduate Education Workforce Aging and Retention SEA TRIAL NPS Experimentation Programs FORCENET Force... ...

  3. E-Print Network 3.0 - air force invests Sample Search Results

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

    John Mitchell, and Nicholas Bambos Summary: to be a negative externality much like air pollution (9). As such, investment in information security causes... . When a player...

  4. E-Print Network 3.0 - air force project Sample Search Results

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

    (CERC) Engineer Waterways Experiment Station Vicksburg, MS Collection: Engineering 2 Air Pollution Physics and Chemistry EAS 6790 Monday, Wednesday, Friday 2:05 to 2:55...

  5. E-Print Network 3.0 - air force global Sample Search Results

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

    Feifei - Department of Geography, University of North Texas Collection: Geosciences 3 Air Pollution Physics and Chemistry EAS 6790 Monday, Wednesday, Friday 2:05 to 2:55...

  6. E-Print Network 3.0 - air force expeditionary Sample Search Results

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

    Air ... Source: US Army Corps of Engineers - Coastal and Hydraulics Laboratory (CERC) Engineer Waterways Experiment Station Vicksburg, MS Collection: Engineering 3 TSgt Kipling W....

  7. E-Print Network 3.0 - air expeditionary force Sample Search Results

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

    Air ... Source: US Army Corps of Engineers - Coastal and Hydraulics Laboratory (CERC) Engineer Waterways Experiment Station Vicksburg, MS Collection: Engineering 3 TSgt Kipling W....

  8. E-Print Network 3.0 - air force technical Sample Search Results

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

    Technologies and Information Sciences 16 The Effect of Pour Time and Head Height on Air Entrainment Malcolm Blair, Technical and Research Director, SFSA Summary: The Effect...

  9. E-Print Network 3.0 - air force information Sample Search Results

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

    (WTERT) Collection: Renewable Energy 57 The Effect of Pour Time and Head Height on Air Entrainment Malcolm Blair, Technical and Research Director, SFSA Summary: The Effect...

  10. E-Print Network 3.0 - air force basic Sample Search Results

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

    University Collection: Materials Science 36 The Effect of Pour Time and Head Height on Air Entrainment Malcolm Blair, Technical and Research Director, SFSA Summary: the pouring...

  11. E-Print Network 3.0 - air force surveys Sample Search Results

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

    ; Energy Storage, Conversion and Utilization 8 The Effect of Pour Time and Head Height on Air Entrainment Malcolm Blair, Technical and Research Director, SFSA Summary: the diameter...

  12. E-Print Network 3.0 - air force operations Sample Search Results

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

    Energy Storage, Conversion and Utilization 57 The Effect of Pour Time and Head Height on Air Entrainment Malcolm Blair, Technical and Research Director, SFSA Summary: The Effect...

  13. The Air or Brayton Cycle Solvent Recovery System

    E-Print Network [OSTI]

    Fox, B. J.

    reduction of the turbine exhaust air temperature. In this manner the system will boot strap itself down to a very low temperature in just a few minutes. I have observed the 8000 CFM system, which will be described a little later, cool from an ambient... condens~ng temperature for many solvents is colder than -50 F. Such low temperatures require relatively complicated freon refri geration systems. This led to development of the Air Cycle System. Fig. 3 shows a simple schematic of the air cycle. A...

  14. Position paper -- Tank ventilation system design air flow rates

    SciTech Connect (OSTI)

    Goolsby, G.K.

    1995-01-04T23:59:59.000Z

    The purpose of this paper is to document a project position on required ventilation system design air flow rates for the waste storage tanks currently being designed by project W-236A, the Multi-Function Waste Tank Facility (MWTF). The Title 1 design primary tank heat removal system consists of two systems: a primary tank vapor space ventilation system; and an annulus ventilation system. At the conclusion of Title 1 design, air flow rates for the primary and annulus ventilation systems were 960 scfm and 4,400 scfm, respectively, per tank. These design flow rates were capable of removing 1,250,000 Btu/hr from each tank. However, recently completed and ongoing studies have resulted in a design change to reduce the extreme case heat load to 700,000 Btu/hr. This revision of the extreme case heat load, coupled with results of scale model evaporative testing performed by WHC Thermal Hydraulics, allow for a reduction of the design air flow rates for both primary and annulus ventilation systems. Based on the preceding discussion, ICF Kaiser Hanford Co. concludes that the design should incorporate the following design air flow rates: Primary ventilation system--500 scfm maximum and Annulus ventilation system--1,100 scfm maximum. In addition, the minimum air flow rates in the primary and annulus ventilation systems will be investigated during Title 2 design. The results of the Title 2 investigation will determine the range of available temperature control using variable air flows to both ventilation systems.

  15. Air Pollution Accountability and Compliance Tracking System (A-PACT System)

    E-Print Network [OSTI]

    regulatory authorities in making their decisions. (Abstract) Keywords-air pollution; aviation; data mining IAir Pollution Accountability and Compliance Tracking System (A-PACT System) Andrew Keller and emissions regulations for aircraft at major airports. The proposed Air Pollution Accountability

  16. Scalability of the air transportation system and development of multi-airport systems : a worldwide perspective

    E-Print Network [OSTI]

    Bonnefoy, Philippe A

    2008-01-01T23:59:59.000Z

    With the growing demand for air transportation and the limited ability to increase capacity at some key points in the air transportation system, there are concerns that in the future the system will not scale to meet demand. ...

  17. Scalability of the Air Transportation System and Development of Multi-Airport Systems: A Worldwide Perspective

    E-Print Network [OSTI]

    Bonnefoy, Philippe

    With the growing demand for air transportation and the limited ability to increase capacity at some key points in the air transportation system, there are concerns that in the future the system will not scale to meet demand. ...

  18. Air Pollutant Climate Forcings within the Big Climate Picture* J. Hansen, M. Sato

    E-Print Network [OSTI]

    Hansen, James E.

    changes relative to today. The planet's present energy imbalance, at least to first order, determines of climate forcings for the past century, suggest that the planet should be out of energy balance by +0, for policy purposes it may be sufficient to start with the present situation and consider climate forcing

  19. Multi-dimensional Longwave Forcing of Boundary Layer Cloud Systems

    SciTech Connect (OSTI)

    Mechem, David B.; Kogan, Y. L.; Ovtchinnikov, Mikhail; Davis, Anthony B; Evans, K. F.; Ellingson, Robert G.

    2008-12-20T23:59:59.000Z

    The importance of multi-dimensional (MD) longwave radiative effects on cloud dynamics is evaluated in a large eddy simulation (LES) framework employing multi-dimensional radiative transfer (Spherical Harmonics Discrete Ordinate Method —SHDOM). Simulations are performed for a case of unbroken, marine boundary layer stratocumulus and a broken field of trade cumulus. “Snapshot” calculations of MD and IPA (independent pixel approximation —1D) radiative transfer applied to LES cloud fields show that the total radiative forcing changes only slightly, although the MD effects significantly modify the spatial structure of the radiative forcing. Simulations of each cloud type employing MD and IPA radiative transfer, however, differ little. For the solid cloud case, relative to using IPA, the MD simulation exhibits a slight reduction in entrainment rate and boundary layer TKE relative to the IPA simulation. This reduction is consistent with both the slight decrease in net radiative forcing and a negative correlation between local vertical velocity and radiative forcing, which implies a damping of boundary layer eddies. Snapshot calculations of the broken cloud case suggest a slight increase in radiative cooling, though few systematic differences are noted in the interactive simulations. We attribute this result to the fact that radiative cooling is a relatively minor contribution to the total energetics. For the cloud systems in this study, the use of IPA longwave radiative transfer is sufficiently accurate to capture the dynamical behavior of BL clouds. Further investigations are required in order to generalize this conclusion for other cloud types and longer time integrations. 1

  20. A Wireless Sensor Network Air Pollution Monitoring System

    E-Print Network [OSTI]

    Khedo, Kavi K; Mungur, Avinash; Mauritius, University of; Mauritius,; 10.5121/ijwmn.2010.2203

    2010-01-01T23:59:59.000Z

    Sensor networks are currently an active research area mainly due to the potential of their applications. In this paper we investigate the use of Wireless Sensor Networks (WSN) for air pollution monitoring in Mauritius. With the fast growing industrial activities on the island, the problem of air pollution is becoming a major concern for the health of the population. We proposed an innovative system named Wireless Sensor Network Air Pollution Monitoring System (WAPMS) to monitor air pollution in Mauritius through the use of wireless sensors deployed in huge numbers around the island. The proposed system makes use of an Air Quality Index (AQI) which is presently not available in Mauritius. In order to improve the efficiency of WAPMS, we have designed and implemented a new data aggregation algorithm named Recursive Converging Quartiles (RCQ). The algorithm is used to merge data to eliminate duplicates, filter out invalid readings and summarise them into a simpler form which significantly reduce the amount of dat...

  1. Implementation of the Laboratory Air Handling Unit Systems (LAHU)

    E-Print Network [OSTI]

    Cui, Y.; Liu, M.; Conger, K.

    2003-01-01T23:59:59.000Z

    Implementation of the Laboratory Air Handling Unit Systems (LAHU) Y. Cui Graduate Student Energy Systems Laboratory University of Nebraska-Lincoln Omaha, NE, USA M. Liu, Ph.D., P.E. Associate Professor Energy Systems Laboratory...-around coils [18, 19], the variable air volume (VAV) fume hoods [8-16] and the usage-based control devices (UBC) [17]. These measures have effectively reduced the cooling energy, preheat energy and fan power consumption, and sometime, improved indoor...

  2. Improving Compressed Air System Efficiency- Know What You Really Need

    E-Print Network [OSTI]

    Terrell, R. E.

    ($17,000/year saved) by reducing air use without reducing production. Another, by monitoring air production and energy requirements of the system, selected a properly sized 75 hp compressor to replace a worn-out 250 hp compressor and paid for the new...

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

    E-Print Network [OSTI]

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

    2006-01-01T23:59:59.000Z

    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...

  4. Cold Vacuum Drying Facility Stack Air Sampling System Qualification Tests

    SciTech Connect (OSTI)

    Glissmeyer, John A.

    2001-01-24T23:59:59.000Z

    This report documents tests that were conducted to verify that the air monitoring system for the Cold Vacuum Drying Facility ventilation exhaust stack meets the applicable regulatory criteria regarding the placement of the air sampling probe, sample transport, and stack flow measurement accuracy.

  5. Iterative Optimal and Adaptive Control of a Near Isothermal Liquid Piston Air Compressor in a Compressed Air Energy Storage System

    E-Print Network [OSTI]

    Li, Perry Y.

    in a Compressed Air Energy Storage System Farzad A. Shirazi, Mohsen Saadat, Bo Yan, Perry Y. Li, and Terry W/expanders are crucial for the economical viability of a Compressed Air Energy Storage (CAES) system such as the one in the Com- pressed Air Energy Storage (CAES) system for offshore wind turbine that has recently been

  6. E-Print Network 3.0 - air force purchasing Sample Search Results

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

    air pollution. BENEFITS TO CONSUMERS San Diego... the 8,000-10,000 that installing solar on existing homes costs in part because homebuilders purchase... 's Buydown and the...

  7. A systems analysis of scheduled air transportation networks

    E-Print Network [OSTI]

    Swan, William M.

    1979-01-01T23:59:59.000Z

    This work establishes the conditions for airline system design building from submodels of smaller aspects of air transportation. The first three sections develop submodels which then are combined in extensive numerical ...

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

    E-Print Network [OSTI]

    Li, H.; Zhang, Q.

    2006-01-01T23:59:59.000Z

    ICEBO2006, Shenzhen, China Maximize Comfort: Temperature, Humidity and IAQ Vol.I-4-1 Reducing Air-Conditioning System Energy Using a PMV Index Hui Li Qingfan Zhang Associate professor...

  9. Ground facilities for a VTOL intercity air transportation system

    E-Print Network [OSTI]

    Allen Edward

    1970-01-01T23:59:59.000Z

    Introduction: This study covers the design of ground facilities, or metroports, for a future form of short haul intercity air transportation, the VTOL Airbus system as described by previous M.I.T. Flight Transportation ...

  10. Improved Air Volume Control Logic for VAV Systems

    E-Print Network [OSTI]

    Wei, G.; Claridge, D. E.; Sakuri, Y.; M. Liu

    2000-01-01T23:59:59.000Z

    position of the terminal boxes. This method is called air volume control logic. Under this control logic, terminal box airflow requirements are met with reduced static pressure. Fan power consumption is minimized. However, the actual system performance also...

  11. Estimating Energy Savings in Compressed Air Systems

    E-Print Network [OSTI]

    Schmidt, C.; Kissock, J. K.

    2004-01-01T23:59:59.000Z

    are frequently overestimated because the methods used to estimate savings neglect to consider important factors such as compressor control and type, storage, and multiple compressor operation. In this paper, a methodology is presented for modeling air... compressor performance and calculating projected energy savings from easily obtainable performance data such as full-load power, no-load power, rated capacity, average fraction full-load power or average fraction rated capacity. The methodology...

  12. Assessing the Impact of Measurement Policy on the Accuracy of Certified Energy Efficiency Ratio for Split-System Air Conditioners

    E-Print Network [OSTI]

    Yu, Bingyi

    2013-01-01T23:59:59.000Z

    Efficiency of Unitary Air Conditioners and Heat Pumps,and Validation of Unitary Air Conditioner and Heat PumpC.W. (1994). Room Air Conditioner System Modeling, Air

  13. An Electromotive Force Measurement System for Alloy Fuels

    SciTech Connect (OSTI)

    Changhu Xing; Colby Jensen; Heng Ban; Robert Mariani; J. Rory Kennedy

    2010-11-01T23:59:59.000Z

    The development of advanced nuclear fuels requires a better understanding of the transmutation and micro-structural evolution of the materials. Alloy fuels have the advantage of high thermal conductivity and improved characteristics in fuel-cladding chemical reaction. However, information on thermodynamic and thermophysical properties is limited. The objective of this project is to design and build an experimental system to measure the thermodynamic properties of solid materials from which the understanding of their phase change can be determined. The apparatus was used to measure the electromotive force (EMF) of several materials in order to calibrate and test the system. The EMF of chromel was measured from 100°C to 800°C and compared with theoretical values. Additionally, the EMF measurement of Ni-Fe alloy was performed and compared with the Ni-Fe phase diagram. The prototype system is to be modified eventually and used in a radioactive hot-cell in the future.

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

    E-Print Network [OSTI]

    Watson, Ian

    A web based CBR system for heating ventilation and air conditioning systems sales support D describes the implementation of a case-based reasoning (CBR) system to support heating ventilation and air conditioning systems (HVAC) sales staff operating in remote locations. The system operates on the world wide

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

    SciTech Connect (OSTI)

    Shapiro, C.; Aldrich, R.; Arena, L.

    2012-07-01T23:59:59.000Z

    This technical report describes CARB's work with Clark County Community Resources Division in Las Vegas, Nevada, to optimize procedures for upgrading cooling systems on existing homes in the area to implement health, safety, and energy improvements. Detailed monitoring of five AC systems showed that three of the five systems met or exceeded air flow rate goals.

  16. Integration of air separation membrane and coalescing filter for use on an inlet air system of an engine

    DOE Patents [OSTI]

    Moncelle, Michael E. (Bloomington, IL)

    2003-01-01T23:59:59.000Z

    An intake air separation system suitable for combustion air of an internal combustion engine. An air separation device of the system includes a plurality of fibers, each fiber having a tube with a permeation barrier layer on the outer surface thereof and a coalescing layer on the inner surface thereof, to restrict fluid droplets from contacting the permeation barrier layer.

  17. ARMY, MARINE CORPS, NAVY, AIR FORCE MULTI-SERVICE TACTICS, TECHNIQUES, AND PROCEDURES

    E-Print Network [OSTI]

    US Army Corps of Engineers

    ) environment. It is the intent of this document to inform the combatant commanders (CCDRs), joint force environment. On future battlefields, failure to properly plan and execute CBRN defensive operations may result, BIOLOGICAL, RADIOLOGICAL, AND NUCLEAR ENVIRONMENT FM 4-02.7 MCRP 4-11.1F NTTP 4-02.7 AFTTP 3-42.3 JULY 2009

  18. Air-flow regulation system for a coal gasifier

    DOE Patents [OSTI]

    Fasching, George E. (Morgantown, WV)

    1984-01-01T23:59:59.000Z

    An improved air-flow regulator for a fixed-bed coal gasifier is provided which allows close air-flow regulation from a compressor source even though the pressure variations are too rapid for a single primary control loop to respond. The improved system includes a primary controller to control a valve in the main (large) air supply line to regulate large slow changes in flow. A secondary controller is used to control a smaller, faster acting valve in a secondary (small) air supply line parallel to the main line valve to regulate rapid cyclic deviations in air flow. A low-pass filter with a time constant of from 20 to 50 seconds couples the output of the secondary controller to the input of the primary controller so that the primary controller only responds to slow changes in the air-flow rate, the faster, cyclic deviations in flow rate sensed and corrected by the secondary controller loop do not reach the primary controller due to the high frequency rejection provided by the filter. This control arrangement provides at least a factor of 5 improvement in air-flow regulation for a coal gasifier in which air is supplied by a reciprocating compressor through a surge tank.

  19. Hydrologic transport of depleted uranium associated with open air dynamic range testing at Los Alamos National Laboratory, New Mexico, and Eglin Air Force Base, Florida

    SciTech Connect (OSTI)

    Becker, N.M. [Los Alamos National Lab., NM (United States); Vanta, E.B. [Wright Laboratory Armament Directorate, Eglin Air Force Base, FL (United States)

    1995-05-01T23:59:59.000Z

    Hydrologic investigations on depleted uranium fate and transport associated with dynamic testing activities were instituted in the 1980`s at Los Alamos National Laboratory and Eglin Air Force Base. At Los Alamos, extensive field watershed investigations of soil, sediment, and especially runoff water were conducted. Eglin conducted field investigations and runoff studies similar to those at Los Alamos at former and active test ranges. Laboratory experiments complemented the field investigations at both installations. Mass balance calculations were performed to quantify the mass of expended uranium which had transported away from firing sites. At Los Alamos, it is estimated that more than 90 percent of the uranium still remains in close proximity to firing sites, which has been corroborated by independent calculations. At Eglin, we estimate that 90 to 95 percent of the uranium remains at test ranges. These data demonstrate that uranium moves slowly via surface water, in both semi-arid (Los Alamos) and humid (Eglin) environments.

  20. Literature Review on Underfloor Air Distribution (UFAD) Systems

    E-Print Network [OSTI]

    Im, P.; Cho, S.; Haberl, J. S.

    2006-01-10T23:59:59.000Z

    implemented with the improved type of outlet provided the indoor environment quality that meets the standard. McCarry, B.T. 1995. Underfloor air distribution systems: benefits and when to use the system in building design. ASHRAE Trans., 1995, Vol. 101, Pt... the structural slab and the underside of a raised floor to deliver conditioned air to supply outlets located at or near floor level within the occupied zone. The reported benefits of this system are: 1) improved thermal comfort, 2) reduced energy use, 3...

  1. Sensitivity of forced air distribution system efficiency to climate, duct location, air leakage and insulation

    E-Print Network [OSTI]

    Walker, Iain

    2001-01-01T23:59:59.000Z

    potential responses to time of use pricing. The study wasand interest in time of use pricing for residences mean thatpotential effects of time of use pricing. The design climate

  2. Sensitivity of Forced Air Distribution System Efficiency to Climate, Duct Location, Air Leakage and Insulation

    E-Print Network [OSTI]

    . 94720 This work was supported by the Assistant Secretary for Energy Efficiency and Renewable Energy......................................................... 5 Figure 4. New plastic flexible ducts in an attic.......................................................................... 6 Figure 5. Combination of plastic insulated flexible duct and added open face glass fiber

  3. Effect of System and Air Contaminants on PEMFC Performance and Durability (Presentation)

    SciTech Connect (OSTI)

    Dinh, H.

    2010-06-11T23:59:59.000Z

    This presentation summarizes Effect of System and Air Contaminants on PEMFC Performance and Durability.

  4. Stability limit of room air temperature of a VAV system

    SciTech Connect (OSTI)

    Matsuba, Tadahiko; Kamimura, Kazuyuki [Yamatake-Honeywell Co., Ltd., Tokyo (Japan). Building System Div.; Kasahara, Masato; Kimbara, Akiomi; Kurosu, Shigeru [Oyama National Coll. of Technology (Japan); Murasawa, Itaru; Hashimoto, Yukihiko [Tonets Corp., Tokyo (Japan). Engineering Project Dept.

    1998-12-31T23:59:59.000Z

    To control heating, ventilating, and air-conditioning (HVAC) systems, it has been necessary to accept an analog system controlled mainly by proportional-plus-integral-plus-derivative (PID) action. However, when conventional PID controllers are replaced with new digital controllers by selecting the same PID parameters as before, the control loops have often got into hunting phenomena, which result in undamped oscillations. Unstable control characteristics (such as huntings) are thought to be one of the crucial problems faced by field operators. The PID parameters must be carefully selected to avoid instabilities. In this study, a room space is simulated as a thermal system that is air-conditioned by a variable-air-volume (VAV) control system. A dynamic room model without infiltration or exfiltration, which is directly connected to a simple air-handling unit without an economizer, is developed. To explore the possible existence of huntings, a numerical system model is formulated as a bilinear system with time-delayed feedback, and a parametric analysis of the stability limit is presented. Results are given showing the stability region affected by the selection of control and system parameters. This analysis was conducted to help us tune the PID controllers for optimal HVAC control.

  5. DOE - Office of Legacy Management -- Air Force Plant No 36 - OH 06

    Office of Legacy Management (LM)

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment ofDepartment ofof EnergyYou are here Home » Sites » SitesNew MexicoAdrianAir

  6. DOE - Office of Legacy Management -- Nellis Air Force Base - NV 04

    Office of Legacy Management (LM)

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment ofDepartment ofof EnergyYou are herePA 3003A AECMexico -36Nellis Air

  7. Friction and Adhesion Forces of Bacillus thuringiensis Spores on Planar Surfaces in Atmospheric Systems

    SciTech Connect (OSTI)

    Kweon, Hyojin [Georgia Institute of Technology; Yiacoumi, Sotira [Georgia Institute of Technology; Tsouris, Costas [ORNL

    2011-01-01T23:59:59.000Z

    The kinetic friction force and the adhesion force of Bacillus thuringiensis spores on planar surfaces in atmospheric systems were studied using atomic force microscopy. The influence of relative humidity (RH) on these forces varied for different surface properties including hydrophobicity, roughness, and surface charge. The friction force of the spore was greater on a rougher surface than on mica, which is atomically flat. As RH increases, the friction force of the spores decreases on mica whereas it increases on rough surfaces. The influence of RH on the interaction forces between hydrophobic surfaces is not as strong as for hydrophilic surfaces. The friction force of the spore is linear to the sum of the adhesion force and normal load on the hydrophobic surface. The poorly defined surface structure of the spore and the adsorption of contaminants from the surrounding atmosphere are believed to cause a discrepancy between the calculated and measured adhesion forces.

  8. Measured Air Distribution Effectiveness for Residential Mechanical Ventilation Systems

    SciTech Connect (OSTI)

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

    2008-05-01T23:59:59.000Z

    The purpose of ventilation is dilute or remove indoor contaminants that an occupant is exposed to. In a multi-zone environment such as a house, there will be different dilution rates and different source strengths in every zone. Most US homes have central HVAC systems, which tend to mix the air thus the indoor conditions between zones. Different types of ventilation systems will provide different amounts of exposure depending on the effectiveness of their air distribution systems and the location of sources and occupants. This paper will report on field measurements using a unique multi-tracer measurement system that has the capacity to measure not only the flow of outdoor air to each zone, but zone-to-zone transport. The paper will derive seven different metrics for the evaluation of air distribution. Measured data from two homes with different levels of natural infiltration will be used to evaluate these metrics for three different ASHRAE Standard 62.2 compliant ventilation systems. Such information can be used to determine the effectiveness of different systems so that appropriate adjustments can be made in residential ventilation standards such as ASHRAE Standard 62.2.

  9. E-Print Network 3.0 - air-conditioning system driven Sample Search...

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

    (3-0-3) Summary: and design of air-conditioning, heating, and refrigeration systems; including consideration of vapor... ME 4321 Refrigeration and Air Conditioning...

  10. Field Test of Room-to-Room Distribution of Outside Air with Two Residential Ventilation Systems

    SciTech Connect (OSTI)

    Hendron, R.; Anderson, R.; Barley, D.; Rudd, A.; Townsend, A.; Hancock, E.

    2008-08-01T23:59:59.000Z

    Uniform distribution of outside air is one way to ensure that residential dilution ventilation systems will provide a known amount of fresh air to all rooms.

  11. E-Print Network 3.0 - air transport system Sample Search Results

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

    University of Nebraska-Lincoln Collection: Engineering 67 Water Modeling of Steel Flow, Air Entrainment and Filtration Summary: , the use of a water system to model air...

  12. E-Print Network 3.0 - air transportation system Sample Search...

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

    University of Nebraska-Lincoln Collection: Engineering 67 Water Modeling of Steel Flow, Air Entrainment and Filtration Summary: , the use of a water system to model air...

  13. E-Print Network 3.0 - air force veterans Sample Search Results

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

    Veterans Affairs. To ... Source: Ohio State University, Department of Industrial, Welding, and Systems Engineering, Biodynamics Laboratories Collection: Engineering ; Biology...

  14. Lessons learned in modeling Underfloor Air Distribution system

    E-Print Network [OSTI]

    Lee, Kwang Ho; Schiavon, Stefano; Webster, Tom; Bauman, Fred; Feng, Jingjuan; Hoyt, Tyler

    2011-01-01T23:59:59.000Z

    Underfloor Air Distribution (UFAD) Design Guide. Atlanta:for design cooling loads in underfloor air distribution (

  15. Distributed Forcing of Forecast and Assimilation Error Systems BRIAN F. FARRELL

    E-Print Network [OSTI]

    Farrell, Brian F.

    Distributed Forcing of Forecast and Assimilation Error Systems BRIAN F. FARRELL Division forecast system gov- erning forecast error growth and the tangent linear observer system governing deterministic and stochastic forcings of the forecast and observer systems over a chosen time interval

  16. Using ductwork to improve supply plenum temperature distribution in underfloor air distribution (UFAD) system

    E-Print Network [OSTI]

    Pasut, Wilmer

    2011-01-01T23:59:59.000Z

    overhead air distribution design(1). 1.3 Thermal comfortS. Under Floor Air Distribution (UFAD) Design Guide. s.l. :load design tool for underfloor air distribution systems.

  17. Closed loop air cooling system for combustion turbines

    DOE Patents [OSTI]

    Huber, David John (North Canton, OH); Briesch, Michael Scot (Orlando, FL)

    1998-01-01T23:59:59.000Z

    Convective cooling of turbine hot parts using a closed loop system is disclosed. Preferably, the present invention is applied to cooling the hot parts of combustion turbine power plants, and the cooling provided permits an increase in the inlet temperature and the concomitant benefits of increased efficiency and output. In preferred embodiments, methods and apparatus are disclosed wherein air is removed from the combustion turbine compressor and delivered to passages internal to one or more of a combustor and turbine hot parts. The air cools the combustor and turbine hot parts via convection and heat is transferred through the surfaces of the combustor and turbine hot parts.

  18. Closed loop air cooling system for combustion turbines

    DOE Patents [OSTI]

    Huber, D.J.; Briesch, M.S.

    1998-07-21T23:59:59.000Z

    Convective cooling of turbine hot parts using a closed loop system is disclosed. Preferably, the present invention is applied to cooling the hot parts of combustion turbine power plants, and the cooling provided permits an increase in the inlet temperature and the concomitant benefits of increased efficiency and output. In preferred embodiments, methods and apparatus are disclosed wherein air is removed from the combustion turbine compressor and delivered to passages internal to one or more of a combustor and turbine hot parts. The air cools the combustor and turbine hot parts via convection and heat is transferred through the surfaces of the combustor and turbine hot parts. 1 fig.

  19. Measured Air Distribution Effectiveness for Residential Mechanical Ventilation Systems

    E-Print Network [OSTI]

    Sherman, Max H.

    2008-01-01T23:59:59.000Z

    In Review J. Indoor Air) 2007 LBNL-63193 Tarantola, Albert,Gas Measurement to Determine Air Movements in a House,Measurement Techniques”, Air Infiltration and Ventilation

  20. air distribution system: Topics by E-print Network

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

    by bringingArnold Schwarzenegger Governor AIR QUALITY IMPACTS OF DISTRIBUTED GENERATION IN THE SOUTH COAST AIR Board, South Coast Air Quality Management District, and San...

  1. air distribution systems: Topics by E-print Network

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

    by bringingArnold Schwarzenegger Governor AIR QUALITY IMPACTS OF DISTRIBUTED GENERATION IN THE SOUTH COAST AIR Board, South Coast Air Quality Management District, and San...

  2. System transition : dynamics of change in the US air transportation system

    E-Print Network [OSTI]

    Mozdzanowska, Aleksandra L. (Aleksandra Ludmila), 1979-

    2008-01-01T23:59:59.000Z

    The US Air Transportation System is currently facing a number of challenges including an increasing demand for travel and growing environmental requirements. In order to successfully meet future needs, the system will need ...

  3. Air flow and particle control with different ventilation systems in a classroom

    E-Print Network [OSTI]

    Chen, Qingyan "Yan"

    Air flow and particle control with different ventilation systems in a classroom Sture Holmberg, Ph. For displacement ventilation systems, designers normally assume that all pollutants follow the buoyant air flow of the ventilation air flow are shown to play an important role in the control of air quality. Computer simulation

  4. High Technology Centrifugal Compressor for Commercial Air Conditioning Systems

    SciTech Connect (OSTI)

    Ruckes, John

    2006-04-15T23:59:59.000Z

    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.

  5. Collective behaviors of the Casimir force in microelectromechanical systems

    SciTech Connect (OSTI)

    Chan, H. B.; Yelton, J.

    2013-01-23T23:59:59.000Z

    Our goal was to explore the strong dependence of the Casimir force on the shape of the interacting bodies. We made significant progress and measured the Casimir force on silicon surface with rectangular corrugation and showed that the results agree with theoretical calculations, provided that the optical properties of silicon are taken into account. Furthermore, we performed measurement of the Casimir force within a single chip for the first time, between a doubly clamped beam and a movable, on-chip electrode at liquid helium temperature. This experiment represents a new way of studying the Casimir effect, a significant advance from the conventional approach of placing an external surface close to a force transducer.

  6. Corrective Action Investigation Plan for Corrective Action Unit 486: Double Tracks RADSAFE Area Nellis Air Force Range, Nevada

    SciTech Connect (OSTI)

    IT Las Vegas

    1998-10-15T23:59:59.000Z

    This Corrective Action Investigation Plan (CAIP) has been developed in accordance with the Federal Facility Agreement and Consent Order (FFACO) that was agreed to by the US Department of Energy, Nevada Operations Office (DOE/NV); the State of Nevada Division of Environmental Protection (NDEP); and the US Department of Defense (FFACO, 1996). The CAIP is a document that provides or references all of the specific information for investigation activities associated with Corrective Action Units (CAUs) or Corrective Action Sites (CASs). According to the FFACO, CASs are sites potentially requiring corrective action(s) and may include solid waste management units or individual disposal or release sites (FFACO, 1996). Corrective Action Units consist of one or more CASs grouped together based on geography, technical similarity, or agency responsibility for the purpose of determining corrective actions. This CAIP contains the environmental sample collection objectives and the criteria for conducting site investigation activities at CAU 486, the Double Tracks Radiological Safety (RADSAFE) Area (DTRSA) which is located on the Nellis Air Force Range 71North (N), west of the Tonopah Test Range (TTR). The TTR, included in the Nellis Air Force Range Complex, is approximately 255 kilometers (km) (140 miles [mi]) northwest of Las Vegas, Nevada (Figure 1-1). Corrective Action Unit 486 is comprised of CAS 71-23-001-71DT consisting of two areas of concern referred to as the vehicle decontamination area and the animal burial pit. The DTRSA is located on the west side of the Cactus Range approximately 8 km (5 mi) southwest of the Cactus Spring gate at the intersection of the Cactus Spring Road and the Double Tracks Control Point Road (Figure 1-2). The DTRSA was used during May 1963 to decontaminate vehicles, equipment, personnel, and animals from the Double Tracks test. The DTRSA is one of three areas identified as a potential location for the disposal of radioactively contaminated materials from the Double Tracks experiment. The other two locations are the Cactus Spring Waste Trenches (CAU 426) and the Roller Coaster RADSAFE Area (CAU 407), both of which have been investigated. The surface and subsurface soils are likely to have been impacted by plutonium and other contaminants of potential concern (COPCs) associated with decontamination activities at this site.

  7. Methods for air cleaning system design and accident analysis

    SciTech Connect (OSTI)

    Gregory, W.S.; Nichols, B.D.

    1986-01-01T23:59:59.000Z

    This paper describes methods, in the form of a handbook and five computer codes, that can be used for air cleaning system design and accident analysis. Four of the codes were developed primarily at the Los Alamos National Laboratory, and one was developed in France. Tools such as these are used to design ventilation systems in the mining industry but do not seem to be commonly used in the nuclear industry. For example, the Nuclear Air Cleaning Handbook is an excellent design reference, but it fails to include information on computer codes that can be used to aid in the design process. These computer codes allow the analyst to use the handbook information to form all the elements of a complete system design. Because these analysis methods are in the form of computer codes, they allow the analyst to investigate many alternative designs. In addition, the effects of many accident scenarios on the operation of the air cleaning system can be evaluated. These tools originally were intended for accident analysis, but they have been used mostly as design tools by several architect-engineering firms. The Cray, VAX, and personal computer versions of the codes, an accident analysis handbook, and the codes' availability will be discussed. The application of these codes to several design operations of nuclear facilities will be illustrated, and their use to analyze the effect of several accident scenarios also will be described.

  8. Variable oxygen/nitrogen enriched intake air system for internal combustion engine applications

    DOE Patents [OSTI]

    Poola, Ramesh B. (Woodridge, IL); Sekar, Ramanujam R. (Naperville, IL); Cole, Roger L. (Elmhurst, IL)

    1997-01-01T23:59:59.000Z

    An air supply control system for selectively supplying ambient air, oxygen enriched air and nitrogen enriched air to an intake of an internal combustion engine includes an air mixing chamber that is in fluid communication with the air intake. At least a portion of the ambient air flowing to the mixing chamber is selectively diverted through a secondary path that includes a selectively permeable air separating membrane device due a differential pressure established across the air separating membrane. The permeable membrane device separates a portion of the nitrogen in the ambient air so that oxygen enriched air (permeate) and nitrogen enriched air (retentate) are produced. The oxygen enriched air and the nitrogen enriched air can be selectively supplied to the mixing chamber or expelled to atmosphere. Alternatively, a portion of the nitrogen enriched air can be supplied through another control valve to a monatomic-nitrogen plasma generator device so that atomic nitrogen produced from the nitrogen enriched air can be then injected into the exhaust of the engine. The oxygen enriched air or the nitrogen enriched air becomes mixed with the ambient air in the mixing chamber and then the mixed air is supplied to the intake of the engine. As a result, the air being supplied to the intake of the engine can be regulated with respect to the concentration of oxygen and/or nitrogen.

  9. Systems and methods of detecting force and stress using tetrapod nanocrystal

    DOE Patents [OSTI]

    Choi, Charina L.; Koski, Kristie J.; Sivasankar, Sanjeevi; Alivisatos, A. Paul

    2013-08-20T23:59:59.000Z

    Systems and methods of detecting force on the nanoscale including methods for detecting force using a tetrapod nanocrystal by exposing the tetrapod nanocrystal to light, which produces a luminescent response by the tetrapod nanocrystal. The method continues with detecting a difference in the luminescent response by the tetrapod nanocrystal relative to a base luminescent response that indicates a force between a first and second medium or stresses or strains experienced within a material. Such systems and methods find use with biological systems to measure forces in biological events or interactions.

  10. Energy efficiency assessment methods and tools evaluation. Bolling Air Force Base. Revision 1

    SciTech Connect (OSTI)

    McMordie, K.L.; Richman, E.E.; Keller, J.M.; Dixon, D.R.

    1995-05-01T23:59:59.000Z

    The goal of the U.S. Department of Energy (DOE) Federal Energy Management Program (FEMP) is to facilitate energy-efficiency improvements at federal facilities. This is accomplished by a balanced program of technology development, facility assessment, and use of cost-sharing procurement mechanisms. Technology development focuses upon the tools, software, and procedures used to identify and evaluate energy-efficiency technologies and improvements. For facility assessment, FEMP provides metering equipment and trained analysts to federal agencies exhibiting a commitment to improve energy use efficiency. To assist in procurement of energy-efficiency measures, FEMP helps federal agencies devise and implement performance contracting and utility demand-side management strategies. Pacific Northwest Laboratory (PNL) supports the FEMP mission of energy systems modernization. Under this charter, the Laboratory and its contractors work with federal facility energy managers to assess and implement energy-efficiency improvements at federal facilities nationwide.

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

    E-Print Network [OSTI]

    Liu, P.; Li, D.

    2006-01-01T23:59:59.000Z

    cold seasons, the closed middle air layer absorbs the solar energy, and becomes the buffer layer of space between the inside and outside because of the glasshouse effect. In this case, the indoor heat loss can be reduced. While during the hot... and natural climatic microenvironment for the people indoor. Considering the energy conservation and the ecological environmental protection, this system not only satisfies the aesthetic need of the architecture, but also is the need of developing...

  12. Radiation control coatings installed on federal buildings at Tyndall Air Force Base. Volume 2: Long-term monitoring and modeling

    SciTech Connect (OSTI)

    Petrie, T.W.; Childs, P.W.

    1998-06-01T23:59:59.000Z

    The US Department of Energy`s (DOE`s) Federal Energy Management Program (FEMP) supports efforts to reduce energy use and associated expenses in the federal sector. One such effort, the New Technology Demonstration Program (NTDP), seeks to evaluate new energy-saving US technologies and secure their more timely adoption by the US government. Through a partnership with a federal site, the utility serving the site, a manufacturer of an energy-related technology, and other organizations associated with these interests, DOE can evaluate a new technology. The results of the program give federal agency decision makers more hands-on information with which to validate a decision to utilize a new technology in their facilities. This is the second volume of a two-volume report that describes the effects of radiation control coatings installed on federal buildings at Tyndall Air Force Base (AFB) in Florida by ThermShield International. ORNL`s Buildings Technology Center (BTC) was assigned the responsibility for gathering, analyzing, and reporting on the data to describe the effects of the coatings. The first volume described the monitoring plan and its implementation, the results of pre-coating monitoring, the coating installation, results from fresh coatings compared to pre-coating results, and a plan to decommission the monitoring equipment. This second volume updates and completes the presentation of data to compare performance of fresh coatings with weathered coatings.

  13. Attractiveness of periodic orbits in parametrically forced systems with time-increasing friction

    E-Print Network [OSTI]

    Attractiveness of periodic orbits in parametrically forced systems with time-increasing friction-dimensional systems subject to a periodic force and study numer- ically how a time-varying friction affects oscillator in the presence of friction. We find that, if the damping coefficient increases in time up

  14. FUJIFILM Hunt Chemicals U.S.A. Achieves Compressed Air System...

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

    FUJIFILM Hunt Chemicals U.S.A. Achieves Compressed Air System Energy-Reduction Goals with a Three-Phased Strategy FUJIFILM Hunt Chemicals U.S.A. Achieves Compressed Air System...

  15. The integration of Automatic Speech Recognition into the Air Traffic Control system

    E-Print Network [OSTI]

    Karlsson Joakim

    1990-01-01T23:59:59.000Z

    Today, the Air Traffic Control (ATC) system relies primarily on verbal communication between the air traffic controllers and the pilots of the aircraft in the controlled airspace. Although a computer system exists that ...

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

    E-Print Network [OSTI]

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

    2006-01-01T23:59:59.000Z

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

  17. E-Print Network 3.0 - air treatment system Sample Search Results

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

    Last Updated: 41702 Summary: , including refrigeration, air conditioning, heating systems, ventilating fans, roof ventilators, exhaust fans... , water treatment equipment,...

  18. E-Print Network 3.0 - air handling systems Sample Search Results

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

    Last Updated: 41702 Summary: , including refrigeration, air conditioning, heating systems, ventilating fans, roof ventilators, exhaust fans... , water treatment equipment,...

  19. Liquid over-feeding air conditioning system and method

    DOE Patents [OSTI]

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

    1993-01-01T23:59:59.000Z

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

  20. Liquid over-feeding air conditioning system and method

    DOE Patents [OSTI]

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

    1993-09-21T23:59:59.000Z

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

  1. Force measuring valve assemblies, systems including such valve assemblies and related methods

    DOE Patents [OSTI]

    DeWall, Kevin George (Pocatello, ID); Garcia, Humberto Enrique (Idaho Falls, ID); McKellar, Michael George (Idaho Falls, ID)

    2012-04-17T23:59:59.000Z

    Methods of evaluating a fluid condition may include stroking a valve member and measuring a force acting on the valve member during the stroke. Methods of evaluating a fluid condition may include measuring a force acting on a valve member in the presence of fluid flow over a period of time and evaluating at least one of the frequency of changes in the measured force over the period of time and the magnitude of the changes in the measured force over the period of time to identify the presence of an anomaly in a fluid flow and, optionally, its estimated location. Methods of evaluating a valve condition may include directing a fluid flow through a valve while stroking a valve member, measuring a force acting on the valve member during the stroke, and comparing the measured force to a reference force. Valve assemblies and related systems are also disclosed.

  2. The Micro Craft iSTAR Micro Air Vehicle: Control System Design and Testing

    E-Print Network [OSTI]

    Rotkowitz, Michael C.

    -rotating propellers) benefits both reliability and cost. Figure 1: iSTAR Micro Air Vehicle The Micro Craft iSTAR VTOLThe Micro Craft iSTAR Micro Air Vehicle: Control System Design and Testing Larry Lipera i Abstract The iSTAR Micro Air Vehicle (MAV) is a unique 9-inch diameter ducted air vehicle weighing

  3. Air and water flows in a large sand box with a two-layer aquifer system

    E-Print Network [OSTI]

    Jiao, Jiu Jimmy

    Air and water flows in a large sand box with a two-layer aquifer system Xingxing Kuang & Jiu Jimmy negative air pressure can be generated in the vadose zone during pumping. The negative air pressure. The initial water-table depth has a significant effect on the generated negative air pressure. The shallower

  4. STATE OF CALIFORNIA CONSTANT VOLUME SINGLE ZONE UNITARY AIR CONDITIONER AND HEAT PUMP SYSTEMS

    E-Print Network [OSTI]

    STATE OF CALIFORNIA CONSTANT VOLUME SINGLE ZONE UNITARY AIR CONDITIONER AND HEAT PUMP SYSTEMS CEC Volume Single Zone Unitary Air Conditioner and Heat Pump Systems (Page 1 of 4) Project Name CONSTANT VOLUME SINGLE ZONE UNITARY AIR CONDITIONER AND HEAT PUMP SYSTEMS CEC-MECH-3A (Revised 08

  5. Raytheon: Compressed Air System Upgrade Saves Energy and Improves Performance

    SciTech Connect (OSTI)

    Not Available

    2005-04-01T23:59:59.000Z

    In 2003, Raytheon Company upgraded the efficiency of the compressed air system at its Integrated Air Defense Center in Andover, Massachusetts, to save energy and reduce costs. Worn compressors and dryers were replaced, a more sophisticated control strategy was installed, and an aggressive leak detection and repair effort was carried out. The total cost of these improvements was $342,000; however, National Grid, a utility service provider, contributed a $174,000 incentive payment. Total annual energy and maintenance cost savings are estimated at $141,500, and energy savings are nearly 1.6 million kWh. This case study was prepared for the U.S. Department of Energy's Industrial Technologies Program.

  6. Improving Energy Efficiency of Compressed Air System Based on System Audit

    E-Print Network [OSTI]

    Shanghai, Hongbo Qin; McKane, Aimee

    2008-01-01T23:59:59.000Z

    plan, formulate energy efficiency goals and adopt energyGO-102004-1926 [3] Energy Efficiency and Market Potential ofImproving Energy Efficiency of Compressed Air System Based

  7. Improving Energy Efficiency of Compressed Air System Based on System Audit

    E-Print Network [OSTI]

    Shanghai, Hongbo Qin; McKane, Aimee

    2008-01-01T23:59:59.000Z

    energy efficiency goals and adopt energy conservation measures. Application of the types of compressed air best practicesEnergy Efficiency and Market Potential of Electric Motor System in China. China Machine Pressu re, [4] Best Practices

  8. Nonlinear dynamics of a self-excited thermoacoustic system subjected to acoustic forcing

    E-Print Network [OSTI]

    Balusamy, Saravanan; Li, Larry K. B.; Han, Zhiyi; Juniper, Matthew P.; Hochgreb, Simone

    2014-06-25T23:59:59.000Z

    ) and decreasing A (Fig. 6b). All four types of behavior (phase drifting, slip- ping, trapping, and locking) have been observed in forced hydrodynamically self-excited jets [8] and in forced model oscillators. In the latter case, it can be studied analytically... Nonlinear dynamics thermoacoustic system subjected to acoustic forcing a partially synchronous state characterized by frequency locking without phase locking. Despite decades of research, thermoacoustic instability remains one of the biggest...

  9. Lessons learned in modeling Underfloor Air Distribution system

    E-Print Network [OSTI]

    Lee, Kwang Ho; Schiavon, Stefano; Webster, Tom; Bauman, Fred; Feng, Jingjuan; Hoyt, Tyler

    2011-01-01T23:59:59.000Z

    terminal unit (TU) cooling design supply air temperature (due to the low supply airflow at low cooling load conditioncontrol the cooling air flow rate or reheated supply air to

  10. Hybrid membrane--PSA system for separating oxygen from air

    DOE Patents [OSTI]

    Staiger, Chad L. (Albuquerque, NM); Vaughn, Mark R. (Albuquerque, NM); Miller, A. Keith (Albuquerque, NM); Cornelius, Christopher J. (Blackburg, VA)

    2011-01-25T23:59:59.000Z

    A portable, non-cryogenic, oxygen generation system capable of delivering oxygen gas at purities greater than 98% and flow rates of 15 L/min or more is described. The system consists of two major components. The first component is a high efficiency membrane capable of separating argon and a portion of the nitrogen content from air, yielding an oxygen-enriched permeate flow. This is then fed to the second component, a pressure swing adsorption (PSA) unit utilizing a commercially available, but specifically formulated zeolite compound to remove the remainder of the nitrogen from the flow. The system is a unique gas separation system that can operate at ambient temperatures, for producing high purity oxygen for various applications (medical, refining, chemical production, enhanced combustion, fuel cells, etc . . . ) and represents a significant advance compared to current technologies.

  11. Compressed Air Energy Savings: SAV-AIR Monitor and Control System and the PNW Compressed Air Challenge

    E-Print Network [OSTI]

    Anderson, K. J.; Annen, B.; Scott, S.

    Portland, OR Portland, OR ABSTRACT This paper presents the results from two compressed air programs supported by the Northwest Energy Efficiency Alliance (Alliance) over the last five years. In 1997 the Alliance funded the Northwest regional version...Resource Group Portland, OR COMPRESSED A[R CHALLENGE The Compressed Air Challenge (CAC) is a national collaborative that develops and provides resources to educate industrial plant operating staff on ways to increase net profits through compressed air...

  12. Energy performance of air distribution systems part II: room air stratification full scale testing

    E-Print Network [OSTI]

    Webster, Tom; Lukaschek, Wolfgang; Dickeroff, Darryl; Bauman, Fred

    2007-01-01T23:59:59.000Z

    and are connected to a fan coil unit by flexible ductwork asvariable air volume fan coil units typically used in

  13. Method, system and apparatus for monitoring and adjusting the quality of indoor air

    DOE Patents [OSTI]

    Hartenstein, Steven D.; Tremblay, Paul L.; Fryer, Michael O.; Hohorst, Frederick A.

    2004-03-23T23:59:59.000Z

    A system, method and apparatus is provided for monitoring and adjusting the quality of indoor air. A sensor array senses an air sample from the indoor air and analyzes the air sample to obtain signatures representative of contaminants in the air sample. When the level or type of contaminant poses a threat or hazard to the occupants, the present invention takes corrective actions which may include introducing additional fresh air. The corrective actions taken are intended to promote overall health of personnel, prevent personnel from being overexposed to hazardous contaminants and minimize the cost of operating the HVAC system. The identification of the contaminants is performed by comparing the signatures provided by the sensor array with a database of known signatures. Upon identification, the system takes corrective actions based on the level of contaminant present. The present invention is capable of learning the identity of previously unknown contaminants, which increases its ability to identify contaminants in the future. Indoor air quality is assured by monitoring the contaminants not only in the indoor air, but also in the outdoor air and the air which is to be recirculated. The present invention is easily adaptable to new and existing HVAC systems. In sum, the present invention is able to monitor and adjust the quality of indoor air in real time by sensing the level and type of contaminants present in indoor air, outdoor and recirculated air, providing an intelligent decision about the quality of the air, and minimizing the cost of operating an HVAC system.

  14. E-Print Network 3.0 - air-distribution systems interactions Sample...

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

    Distribution Systems Bass Abushakra Iain S. Walker... , and the installation of supply boots and diffusers. Introduction The installation of air distribution systems... in the...

  15. A MultiAir / MultiFuel Approach to Enhancing Engine System Efficiency...

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

    to Enhancing Engine System Efficiency A MultiAir MultiFuel Approach to Enhancing Engine System Efficiency 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies...

  16. E-Print Network 3.0 - air system design Sample Search Results

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

    10 CIVIL ENGINEERING UNDERGRADUATE AREAS OF CONCENTRATION Summary: Wastewater Treatment Systems CE 4300 Air Pollution Control System Design Required Design Course...

  17. Sandia National Laboratories: National Air Space radar system

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik Spoerke SSLSMolten-Salt Storage System ArevaNRG SandiaGases inAir Space

  18. Epidemiologic investigation of health effects in Air Force personnel following exposure to herbicides: Extract reproductive outcomes. Executive summary, introduction, and conclusions. Interim report, 1985-1992

    SciTech Connect (OSTI)

    Wolfe, W.H.; Michalek, J.E.; Miner, J.C.; Rahe, A.J.

    1992-08-31T23:59:59.000Z

    The Air Force is conducting a 20-year prospective study of veterans of Operation Ranch Hand, the unit responsible for aerial spraying of herbicides in Vietnam from 1962 to 1971. A comparison group of Air Force veterans who served in Southeast Asia (SEA) during the same period who were not occupationally exposed to herbicides was selected. The study, called the Air Force Health Study (AFHS), is in its tenth year and is designed to determine whether exposure to the herbicides or their contaminant, 2,3,37,8-tetrachlorodibenzo-p-dioxin (dioxin), has adversely affected the health, survival or reproductive outcomes of Ranch Hands. This report summarizes the findings of an investigation of reproductive outcomes of the 791 Ranch Hands and 942 Comparisons for whom a dioxin level had been determined by August, 1991. These men have fathered 5,489 pregnancies including 4,514 live births. These men are a subset of all Ranch Hands (n=1,098) and Comparisons (n=1,549) who have fathered 8,263 pregnancies and 6,792 live births. All data in this report have been verified by review of birth certificates, newborn clinic records, health records and death certificates. The birth defect status of each child was verified through the age of 18.

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

    E-Print Network [OSTI]

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

    2006-01-01T23:59:59.000Z

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

  20. COMPRESSED-AIR ENERGY STORAGE SYSTEMS FOR STAND-ALONE OFF-GRID PHOTOVOLTAIC MODULES

    E-Print Network [OSTI]

    Deymier, Pierre

    COMPRESSED-AIR ENERGY STORAGE SYSTEMS FOR STAND-ALONE OFF-GRID PHOTOVOLTAIC MODULES Dominique materials, flywheels, pumped hydro (PH), superconducting magnetic energy storage (SMES) and compressed air-grid alternative to the large-scale compressed air energy storage systems we propose to examine the viability

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

    E-Print Network [OSTI]

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

    2006-01-01T23:59:59.000Z

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

  2. Energy performance of underfloor air distribution systems part V: energy plus development

    E-Print Network [OSTI]

    Buhl, Fred

    2007-01-01T23:59:59.000Z

    heating coil (fan outlet, coil inlet); the unit air outletVS) fan and reheat coil is an air system terminal unitfan is upstream of the heating coil (this is a blow-through unit).

  3. Optimization of supply air temperature reset schedule for a single duct VAV systems

    E-Print Network [OSTI]

    Fan, Wenshu

    2009-05-15T23:59:59.000Z

    In a single duct variable air volume (SDVAV) system, the supply air temperature is usually set as a constant value. Since this constant setpoint is selected to satisfy the maximum cooling load conditions, significant reheat will occur once...

  4. E-Print Network 3.0 - advanced automation system air traffic...

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

    burdened air traffic control (ATC) systems that are at or near their desig- nated maximum handling... of ground-based ATC but to use automation to support air traffic...

  5. Large System Analysis of Zero-Forcing Precoding in MISO Broadcast Channels with Limited

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Large System Analysis of Zero-Forcing Precoding in MISO Broadcast Channels with Limited Feedback in MISO broadcast channels with limited feed- back, transmit correlation and path loss. Our analysis

  6. Moltox™ Chemical Air Separation System-A Progress Report

    E-Print Network [OSTI]

    Erickson, D. C.; Brown, W. R.; Dunbobbin, B. R.; Massey, R. G.

    MOLTOX~* CHEMICAL AIR SEPARATION SYSTEM - A PROGRESS REPORT Donald C. Er1ckson Energy Concepts Co. Annapo11s, Maryland W111iam R. Brown and Br1an R. Dunbobb1n A1r Products and Chem1ca1s, Inc. Allentown, Pennsy1van1a Robert G. Massey U....S. Department of Energy Wash1ngton, D.C. ABSTRACT A new low energy route to tonnage oxygen product1on, the HOLTOX~ system, 1s now commenc1ng p110t plant test1ng. The process, 1ts h1story, and potent1a1 app11cat10ns will be descr1bed, 1n add1t1on...

  7. INFLUENCE OF SUPPLY AIR TEMPERATURE ON UNDERFLOOR AIR DISTRIBUTION (UFAD) SYSTEM ENERGY PERFORMANCE

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

    chilled water cooling coil, and supply fan. The fan is aspecify the VAV box cooling design supply air temperature (the underfloor supply plenum (thereby, reducing room cooling

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

    E-Print Network [OSTI]

    Reitz, Sven; Schneider, Peter

    2008-01-01T23:59:59.000Z

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

  9. Detecting invariant manifolds, attractors, and generalized KAM tori in aperiodically forced mechanical systems

    E-Print Network [OSTI]

    Alireza Hadjighasem; Mohammad Farazmand; George Haller

    2013-02-07T23:59:59.000Z

    We show how the recently developed theory of geodesic transport barriers for fluid flows can be used to uncover key invariant manifolds in externally forced, one-degree-of-freedom mechanical systems. Specifically, invariant sets in such systems turn out to be shadowed by least-stretching geodesics of the Cauchy-Green strain tensor computed from the flow map of the forced mechanical system. This approach enables the finite-time visualization of generalized stable and unstable manifolds, attractors and generalized KAM curves under arbitrary forcing, when Poincare maps are not available. We illustrate these results by detailed visualizations of the key finite-time invariant sets of conservatively and dissipatively forced Duffing oscillators.

  10. A study of pressure losses in residential air distribution systems

    SciTech Connect (OSTI)

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

    2002-07-01T23:59:59.000Z

    An experimental study was conducted to evaluate the pressure drop characteristics of residential duct system components that are either not available or not thoroughly (sometimes incorrectly) described in existing duct design literature. The tests were designed to imitate cases normally found in typical residential and light commercial installations. The study included three different sizes of flexible ducts, under different compression configurations, splitter boxes, supply boots, and a fresh air intake hood. The experimental tests conformed to ASHRAE Standard 120P--''Methods of Testing to Determine Flow Resistance of HVAC Air Ducts and Fittings''. The flexible duct study covered compressibility and bending effects on the total pressure drop, and the results showed that the available published references tend to underestimate the effects of compression in flexible ducts that can increase pressure drops by up to a factor of nine. The supply boots were tested under different configurations including a setup where a flexible duct elbow connection was considered as an integral part of the supply boot. The supply boots results showed that diffusers can increase the pressure drop by up to a factor of two in exit fittings, and the installation configuration can increase the pressure drop by up to a factor of five. The results showed that it is crucial for designers and contractors to be aware of the compressibility effects of the flexible duct, and the installation of supply boots and diffusers.

  11. air heating system: Topics by E-print Network

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

    solar air collector PV-panel fannon-return valve DHW tank mantle cold waterhot water roof Solar Energy Centre Denmark Danish Technological Institute SEC-R-29 12;Solar air heating...

  12. air systems metodologia: Topics by E-print Network

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

    solar air collector PV-panel fannon-return valve DHW tank mantle cold waterhot water roof Solar Energy Centre Denmark Danish Technological Institute SEC-R-29 12;Solar air heating...

  13. air heating systems: Topics by E-print Network

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

    solar air collector PV-panel fannon-return valve DHW tank mantle cold waterhot water roof Solar Energy Centre Denmark Danish Technological Institute SEC-R-29 12;Solar air heating...

  14. Heat transfer pathways in underfloor air distribution (UFAD) systems

    E-Print Network [OSTI]

    Bauman, F.; Jin, H.; Webster, T.

    2006-01-01T23:59:59.000Z

    room cooling load, room air setpoint, and supply air temper-distribution of room cooling load into the supply plenum orof room cooling load between the underfloor supply plenum

  15. Improving Energy Efficiency of Compressed Air System Based onSystem Audit

    SciTech Connect (OSTI)

    Shanghai, Hongbo Qin; McKane, Aimee

    2007-06-01T23:59:59.000Z

    Industrial electric motor systems consume more than 600billion kWh annually, accounting for more than 50 percent of China selectricity use. The International Energy Agency estimates thatoptimizing motor systems results in an improvement of 20-25 percent,which is well-supported by experience in both the U.S. and China.Compressed air systems in China use 9.4 percent of all electricity.Compressed air use in China is growing rapidly, as new industrial plantsare built and the production processes of existing plants expand andchange. Most of these systems, whether existing or new, are not optimizedfor energy efficiency. This paper will present a practitioner'sperspective on theemergence of compressed air auditing services inChina, specifically as it pertains to Shanghai and surrounding areas.Both the methodology used and the market development of these compressedair system services will be addressed. Finally, the potential for energysaving opportunities will be described based on highlights from over 50compressed air system energy audits completed by Shanghai EnergyConservation Service Center, both during the United Nations IndustrialDevelopment Organization (UNIDO) China Motor System Energy ConservationProgram, and after this training program was completed.

  16. Air traffic complexity and the interacting particle system method: An integrated approach for collision risk estimation

    E-Print Network [OSTI]

    Del Moral , Pierre

    Air traffic complexity and the interacting particle system method: An integrated approach explore the possibility of using air traffic complexity metrics to accelerate the Interacting Particle to assess the performance and impact of, e.g., possible modifications of the current air traffic management

  17. DRAFT: NONLINEAR CONTROLLER DESIGN WITH BANDWIDTH CONSIDERATION FOR A NOVEL COMPRESSED AIR ENERGY STORAGE SYSTEM

    E-Print Network [OSTI]

    Li, Perry Y.

    regulation and gen- erator power tracking for a Compressed Air Energy Storage (CAES) system, a nonlinearDRAFT: NONLINEAR CONTROLLER DESIGN WITH BANDWIDTH CONSIDERATION FOR A NOVEL COMPRESSED AIR ENERGY available wind power in normal situations. Storing energy in high pressure compressed air is attractive

  18. ENVIRONMENTAL INFORMATION SYSTEM FOR ANALYSIS AND FORECAST OF AIR POLLUTION (APPLICATION TO SANTIAGO DE CHILE)

    E-Print Network [OSTI]

    Bertossi, Leopoldo

    ENVIRONMENTAL INFORMATION SYSTEM FOR ANALYSIS AND FORECAST OF AIR POLLUTION (APPLICATION Chile and other cities in Chile, air pollution is a dramatic problem. An Environmental Information planning. Using a model-based EIS for air pollution it is possible (i) to study complex source

  19. Parallel NonLinear Optimization : Towards The Design Of A Decision Support System For Air

    E-Print Network [OSTI]

    Abramson, David

    outcomes (e.g. financial return) whilst minimizing environmental damage. In the area of air pollution, such technology has been used for real world studies predicting air pollution levels over a planning horizon1 Parallel Non­Linear Optimization : Towards The Design Of A Decision Support System For Air

  20. Environmental turbulent mixing controls on air-water gas exchange in marine and aquatic systems

    E-Print Network [OSTI]

    Ho, David

    linked with gas transfer. Microbreaking, or the breakdown of small-scale waves that do not entrain airEnvironmental turbulent mixing controls on air-water gas exchange in marine and aquatic systems; accepted 5 April 2007; published 17 May 2007. [1] Air-water gas transfer influences CO2 and other

  1. Thermal decay in underfloor air distribution (UFAD) systems: Fundamentals and influence on system performance

    E-Print Network [OSTI]

    Lee, Kwang Ho; Schiavon, Stefano; Bauman, Fred; Webster, Tom

    2012-01-01T23:59:59.000Z

    Underfloor Air Distribution (UFAD) Design Guide. Atlanta:for design cooling loads in underfloor air distribution (

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

    SciTech Connect (OSTI)

    Wray, Craig; Wray, Craig P.; Sherman, Max H.; Walker, I.S.; Dickerhoff, D.J.; Federspiel, C.C.

    2008-02-01T23:59:59.000Z

    The performance of air-handling systems in buildings needs to be improved. Many of the deficiencies result from myths and lore and a lack of understanding about the non-linear physical principles embedded in the associated technologies. By incorporating these principles, a few important efforts related to diagnostics and controls have already begun to solve some of the problems. This paper illustrates three novel solutions: one rapidly assesses duct leakage, the second configures ad hoc duct-static-pressure reset strategies, and the third identifies useful intermittent ventilation strategies. By highlighting these efforts, this paper seeks to stimulate new research and technology developments that could further improve air-handling systems.

  3. A Comparison of Atmospheric Reanalysis Surface Products over the Ocean and Implications for Uncertainties in Air–Sea Boundary Forcing

    E-Print Network [OSTI]

    Chaudhuri, Ayan H.

    This paper investigates the uncertainties related to atmospheric fields from reanalysis products used in forcing ocean models. Four reanalysis products, namely from 1) the interim ECMWF Re-Analysis (ERA-Interim), 2) version ...

  4. Van der Waals forces from first principles for periodic systems: Application to graphene-water interactions

    E-Print Network [OSTI]

    Pouya Partovi-Azar; T. D. Kühne

    2015-04-17T23:59:59.000Z

    We extend the method of Silvestrelli [P. L. Silvestrelli, J. Chem. Phys. 139, 054106 (2013)] to approximate long-range van der Waals interactions at the density functional theory level based on maximally localized Wannier functions combined with the quantum harmonic oscillator model, to periodic systems. Applying this scheme to study London dispersion forces between graphene and water layers, we demonstrate that collective many-body effects beyond simple additive pair-wise interactions are essential to accurately describe van der Waals forces.

  5. Van der Waals forces from first principles for periodic systems: Application to graphene-water interactions

    E-Print Network [OSTI]

    Partovi-Azar, Pouya

    2015-01-01T23:59:59.000Z

    We extend the method of Silvestrelli [P. L. Silvestrelli, J. Chem. Phys. 139, 054106 (2013)] to approximate long-range van der Waals interactions at the density functional theory level based on maximally localized Wannier functions combined with the quantum harmonic oscillator model, to periodic systems. Applying this scheme to study London dispersion forces between graphene and water layers, we demonstrate that collective many-body effects beyond simple additive pair-wise interactions are essential to accurately describe van der Waals forces.

  6. E-Print Network 3.0 - air Sample Search Results

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

    Texas Transportation Institute Collection: Engineering 60 Proceedings of Healthy Buildings 2009 Paper 680 Do forced air HVAC systems have a role in healthy homes? Summary:...

  7. E-Print Network 3.0 - ammonia-removing biological air Sample...

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

    Project Collection: Environmental Sciences and Ecology 43 Proceedings of Healthy Buildings 2009 Paper 680 Do forced air HVAC systems have a role in healthy homes? Summary:...

  8. E-Print Network 3.0 - active duty air Sample Search Results

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

    Engineering ; Computer Technologies and Information Sciences 92 Proceedings of Healthy Buildings 2009 Paper 680 Do forced air HVAC systems have a role in healthy homes? Summary:...

  9. E-Print Network 3.0 - air izmerenie ehffektivnosti Sample Search...

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

    Texas Transportation Institute Collection: Engineering 71 Proceedings of Healthy Buildings 2009 Paper 680 Do forced air HVAC systems have a role in healthy homes? Summary:...

  10. E-Print Network 3.0 - aire raidvee jaanus Sample Search Results

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

    Texas Transportation Institute Collection: Engineering 69 Proceedings of Healthy Buildings 2009 Paper 680 Do forced air HVAC systems have a role in healthy homes? Summary:...

  11. E-Print Network 3.0 - air kerma strength Sample Search Results

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

    ; Environmental Sciences and Ecology ; Biology and Medicine 87 Proceedings of Healthy Buildings 2009 Paper 680 Do forced air HVAC systems have a role in healthy homes? Summary:...

  12. E-Print Network 3.0 - air cleaners evaluation Sample Search Results

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

    Energy Storage, Conversion and Utilization ; Engineering 12 Proceedings of Healthy Buildings 2009 Paper 680 Do forced air HVAC systems have a role in healthy homes? Summary:...

  13. E-Print Network 3.0 - air cleaning handbook Sample Search Results

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

    Nebraska-Omaha Collection: Biotechnology ; Biology and Medicine 19 Proceedings of Healthy Buildings 2009 Paper 680 Do forced air HVAC systems have a role in healthy homes? Summary:...

  14. E-Print Network 3.0 - automotive air-conditioning system Sample...

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

    EGTE456 Fundamentals of Heating, Ventilation and Air Conditioning ELEG420 Solar Electric Systems... CIEG351 Transportation Engineering MEEG425 Automotive Powertrain...

  15. E-Print Network 3.0 - air injection systems Sample Search Results

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

    systems. Different methods for measuring air-leakage rates were also compared... , and Refrigeration ... Source: Lawrence Berkeley National Laboratory, Environmental Energy...

  16. E-Print Network 3.0 - air control system Sample Search Results

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

    Search Powered by Explorit Topic List Advanced Search Sample search results for: air control system Page: << < 1 2 3 4 5 > >> 1 The Pennsylvania State University Confined Space...

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

    E-Print Network [OSTI]

    Meckler, G.

    1989-01-01T23:59:59.000Z

    and incorporated into HVAC design for medium-to-large buildings, it is possible to structure system arrangements that reduce energy operating costs very significantly compared to conventional all-air VAV systems and also to all-air VAV ice thermal storage systems...

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

    E-Print Network [OSTI]

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

    2006-01-01T23:59:59.000Z

    simulated and compared the summer energy consuming conditions of the two systems. Results prove the superiority of the 2nd return air system, and the validity of the simulation. Also, the air system energy performance in summer was illustrated with typical...

  19. Compressed Air Audits: A Holistic Approach -Addressing the Air System as a Whole

    E-Print Network [OSTI]

    Shaver, D.

    2011-01-01T23:59:59.000Z

    energy savings. The quality and comprehensiveness of manufacturing facilities, and therefore audits, vary widely and it is important to consider experience. Compressed Air Technologies has audited nearly 200 manufacturing facilities since our inception...

  20. Cardiac and Thoracic-Abdominal Surgery A robotic system providing force feedback and automation

    E-Print Network [OSTI]

    Surgery, German Heart Center Munich, Germany Abstract We have developed an experimental system for robotic allow a human expert to tie knots comfortably and cleanly, and, therefore, generate useful training and Technology has developed a mi- cro-telerobot system that also provides force feedback [3]. In Ger- many two

  1. Supply fan energy use in pressurized underfloor air distribution systems

    E-Print Network [OSTI]

    Webster, Tom P.E.; Bauman, Fred P.E.; Ring, Erik P.E.

    2000-01-01T23:59:59.000Z

    air-water devices like fan coil units and water source heatsuch as VAV boxes and fan coil units. One fairly typical

  2. Environmental policymaking for air transportation : toward an emissions trading system.

    E-Print Network [OSTI]

    De Serres, Martine.

    2007-01-01T23:59:59.000Z

    ??Aviation is at a turning point. Considerable improvements in aircraft emissions efficiencies are expected through technological improvements, air traffic management, and managerial strategies. But global… (more)

  3. Human-System Safety Methods for Development of Advanced Air Traffic Management Systems

    SciTech Connect (OSTI)

    Nelson, W.R.

    1999-05-24T23:59:59.000Z

    The Idaho National Engineering and Environmental Laboratory (INEEL) is supporting the National Aeronautics and Space Administration in the development of advanced air traffic management (ATM) systems as part of the Advanced Air Transportation Technologies program. As part of this program INEEL conducted a survey of human-system safety methods that have been applied to complex technical systems, to identify lessons learned from these applications and provide recommendations for the development of advanced ATM systems. The domains that were surveyed included offshore oil and gas, commercial nuclear power, commercial aviation, and military. The survey showed that widely different approaches are used in these industries, and that the methods used range from very high-level, qualitative approaches to very detailed quantitative methods such as human reliability analysis (HRA) and probabilistic safety assessment (PSA). In addition, the industries varied widely in how effectively they incorporate human-system safety assessment in the design, development, and testing of complex technical systems. In spite of the lack of uniformity in the approaches and methods used, it was found that methods are available that can be combined and adapted to support the development of advanced air traffic management systems.

  4. Casimir force for absorbing media in an open quantum system framework: Scalar model

    SciTech Connect (OSTI)

    Lombardo, Fernando C.; Rubio Lopez, Adrian E. [Departamento de Fisica Juan Jose Giambiagi, FCEyN UBA and IFIBA CONICET, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellon I, 1428 Buenos Aires (Argentina); Mazzitelli, Francisco D. [Departamento de Fisica Juan Jose Giambiagi, FCEyN UBA and IFIBA CONICET, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellon I, 1428 Buenos Aires (Argentina); Centro Atomico Bariloche Comision Nacional de Energia Atomica, R8402AGP Bariloche (Argentina)

    2011-11-15T23:59:59.000Z

    In this article we compute the Casimir force between two finite-width mirrors at finite temperature, working in a simplified model in 1+1 dimensions. The mirrors, considered as dissipative media, are modeled by a continuous set of harmonic oscillators which in turn are coupled to an external environment at thermal equilibrium. The calculation of the Casimir force is performed in the framework of the theory of open quantum systems. It is shown that the Casimir interaction has two different contributions: the usual radiation pressure from the vacuum, which is obtained for ideal mirrors without dissipation or losses, and a Langevin force associated with the noise induced by the interaction between dielectric atoms in the slabs and the thermal bath. Both contributions to the Casimir force are needed in order to reproduce the analogous Lifshitz formula in 1+1 dimensions. We also discuss the relationship between the electromagnetic properties of the mirrors and the spectral density of the environment.

  5. Propagation of travelling waves in sub-excitable systems driven by noise and periodic forcing

    E-Print Network [OSTI]

    Fen-Ni Si; Quan-Xing Liu; Jin-Zhong Zhang; Lu-Qun Zhou

    2007-11-23T23:59:59.000Z

    It has been reported that traveling waves propagate periodically and stably in sub-excitable systems driven by noise [Phys. Rev. Lett. \\textbf{88}, 138301 (2002)]. As a further investigation, here we observe different types of traveling waves under different noises and periodic forces, using a simplified Oregonator model. Depending on different noises and periodic forces, we have observed different types of wave propagation (or their disappearance). Moreover, the reversal phenomena are observed in this system based on the numerical experiments in the one-dimensional space. As an explanation, we regard it as the effect of periodic forces. Thus, we give qualitative explanations to how reversal phenomena stably appear, which seem to arise from the mixing function of the periodic force and the noise. And the output period and three velocities (the normal, the positive and the negative) of the travelling waves are defined and their relationship with the periodic forces, along with the types of waves, are also studied in sub-excitable system under a fixed noise intensity.

  6. Short communication Optimization of hybrid ground coupled and air source heat pump systems

    E-Print Network [OSTI]

    Fernández de Córdoba, Pedro

    Short communication Optimization of hybrid ­ ground coupled and air source ­ heat pump systems 2008 Accepted 14 January 2010 Available online 28 January 2010 Keywords: Ground coupled heat pump Air to water heat pump Thermal storage device Hybrid HVAC system Energy efficiency Numerical simulation a b

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

    E-Print Network [OSTI]

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

    2006-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Modelica Library for Building Heating, Ventilation and Air-Conditioning Systems Michael Wetter available Modelica library for building heating, ventilation and air conditioning systems. The library is based on the Modelica.Fluid library. It has been developed to support research and development

  9. 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

  10. Modeling the pneumatic subsystem of a S-cam air brake system

    E-Print Network [OSTI]

    Coimbatore Subramanian, Shankar

    2004-09-30T23:59:59.000Z

    The air brake system is one of the critical components in ensuring the safe operation of any commercial vehicle. This work is directed towards the development of a fault-free model of the pneumatic subsystem of the air brake system. This model can...

  11. Figure 1. Schematic of initial air pump design Design of Air Pump System Using Bond Graph

    E-Print Network [OSTI]

    Fernandez, Thomas

    , is presented in Figure 1. It is a vibratory pump in which an electromagnetic circuit drives a small permanent magnet attached to a pivoted lever that, in turn, drives a rubber bellows pump. The bellows pump has of the cascaded arrangement of three coupled subsystems: the electromagnetic actuator, the lever, and the air

  12. E-Print Network 3.0 - automative air-conditioning systems Sample...

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

    systems Page: << < 1 2 3 4 5 > >> 1 PLEASE HELP SAVE ENERGY Learn how to control the heating system for your room. Summary: & SW Heat & air conditioning control Cary E & NE &...

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

    E-Print Network [OSTI]

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

    2006-01-01T23:59:59.000Z

    ICEBO2006, Shenzhen, China Co ntrol Systems for Energy Efficiency and Comfort, Vol. V-5-2 Analysis of the Diagnostic Methods of the Performance Failure of Heating and Air Conditioning Systems Lianyou LI Zhihong ZHANG Yong...

  14. NREL research determines optimal HVAC system design for proper air mixing and thermal comfort in homes.

    E-Print Network [OSTI]

    NREL research determines optimal HVAC system design for proper air mixing and thermal comfort in homes. As U.S. homes become more energy efficient, heating, ventilation, and cooling (HVAC) systems

  15. A model for an under floor air distribution system Y.J.P. Lina,*, P.F. Lindenb

    E-Print Network [OSTI]

    Linden, Paul F.

    cool air from above. This geometrical design induces entrainment of warm air at the top of the roomA model for an under floor air distribution system Y.J.P. Lina,*, P.F. Lindenb a Energy Abstract We present a simplified model of an underfloor air distribution (UFAD) system consisting

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

    SciTech Connect (OSTI)

    Camejo, P.J.

    1989-12-01T23:59:59.000Z

    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.

  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.

    2006-01-01T23:59:59.000Z

    ). If the system can be transformed into linear system by mathematic method, control strategy will be simplified. It is noted that differential geometry theory is applicable to simplify the system described by equation (4). 3. DIFFERENTIABLE HOMEOMORPHI..., stability and other aspects. Key words: VAV; differentiable homeomorphism; nonlinear feedback; simulation 1. INTRODUCTION In order to maintain indoor air temperature at set value, there are two methods in the air-conditioning system. One method...

  18. (Ir)reversibility in dense granular systems driven by oscillating forces

    E-Print Network [OSTI]

    Ronny Moebius; Claus Heussinger

    2014-04-07T23:59:59.000Z

    We use computer simulations to study highly dense systems of granular particles that are driven by oscillating forces. We implement different dissipation mechanisms that are used to extract the injected energy. In particular, the action of a simple local Stokes' drag is compared with non-linear and history-dependent frictional forces that act either between particle pairs or between particles and an external container wall. The Stokes' drag leads to particle motion that is periodic with the driving force, even at high densities around close packing where particles undergo frequent collisions. With the introduction of inter-particle frictional forces this "interacting absorbing state" is destroyed and particles start to diffuse around. By reducing the density of the material we go through another transition to a "non-interacting" absorbing state, where particles independently follow the force-induced oscillations without collisions. In the system with particle-wall frictional interactions this transition has signs of a discontinuous phase transition. It is accompanied by a diverging relaxation time, but not by a vanishing order parameter, which rather jumps to zero at the transition.

  19. Metering Air Compressor Systems for Efficiency: A Progress Report

    E-Print Network [OSTI]

    Joseph, B.

    2005-01-01T23:59:59.000Z

    Air compressors have energy efficiency quantified as SCFM/BHP. However, this efficiency fluctuates over a broad range based on the loading of the compressor. When multiple compressors operate with varying loads, as in a central plant, the overall...

  20. Air cooled turbine component having an internal filtration system

    DOE Patents [OSTI]

    Beeck, Alexander R. (Orlando, FL)

    2012-05-15T23:59:59.000Z

    A centrifugal particle separator is provided for removing particles such as microscopic dirt or dust particles from the compressed cooling air prior to reaching and cooling the turbine blades or turbine vanes of a turbine engine. The centrifugal particle separator structure has a substantially cylindrical body with an inlet arranged on a periphery of the substantially cylindrical body. Cooling air enters centrifugal particle separator through the separator inlet port having a linear velocity. When the cooling air impinges the substantially cylindrical body, the linear velocity is transformed into a rotational velocity, separating microscopic particles from the cooling air. Microscopic dust particles exit the centrifugal particle separator through a conical outlet and returned to a working medium.

  1. Compliance testing of Grissom Air Force Base Central Heating Plant coal-fired boilers 3, 4, and 5, Grissom Air Force Base, Indiana. Final technical report, 3-21 Feb 92

    SciTech Connect (OSTI)

    Cintron-Ocasio, R.A.

    1992-06-01T23:59:59.000Z

    A source emission testing for particulate matter and visible emissions was conducted on coal-fired boilers at the Grissom AFB Central Heating Plant during 3-21 February 1992 by the Air Quality Function of Armstrong Laboratory. The survey was conducted to determine compliance with regard to Indiana Administration Code, Title 325 Pollution Control Board, Article 5, Opacity Regulations, and Article 6, Particulate Regulations. All boilers were tested through the bypass stack. Results indicated that boilers 3 and 4 met applicable, visible, and particulate matter emissions standards. Boiler 5 exceeded the particulate standard.

  2. Development of Optimization Tool for Air Conditioning System Operation

    E-Print Network [OSTI]

    Sumiyoshi, D.; Akashi, Y.

    Operations, Berlin, Germany, October 20-22, 2008 Outside air temperature and the absolute air humidity are predicted by the Auto-regressive Integrated Moving Average (ARIMA) model [1],[2]. The solar radiation on a horizontal surface... of the error margin Energy Consumption (set value A) Energy Consumption (set value B) ESL-IC-08-10-55 Proceedings of the Eighth International Conference for Enhanced Building Operations, Berlin, Germany, October 20-22, 2008 J VAV unit is also operated under...

  3. High-speed atomic force microscope based on an astigmatic detection system

    SciTech Connect (OSTI)

    Liao, H.-S.; Chen, Y.-H.; Hwu, E.-T.; Chang, C.-S.; Hwang, I.-S., E-mail: ishwang@phys.sinica.edu.tw [Institute of Physics, Academia Sinica, Nankang, Taipei 11529, Taiwan (China); Ding, R.-F.; Huang, H.-F.; Wang, W.-M. [Institute of Physics, Academia Sinica, Nankang, Taipei 11529, Taiwan (China); Department of Mechanical Engineering, National Taiwan University, Taipei 10617, Taiwan (China); Huang, K.-Y. [Department of Mechanical Engineering, National Taiwan University, Taipei 10617, Taiwan (China)

    2014-10-15T23:59:59.000Z

    High-speed atomic force microscopy (HS-AFM) enables visualizing dynamic behaviors of biological molecules under physiological conditions at a temporal resolution of 1s or shorter. A small cantilever with a high resonance frequency is crucial in increasing the scan speed. However, detecting mechanical resonances of small cantilevers is technically challenging. In this study, we constructed an atomic force microscope using a digital versatile disc (DVD) pickup head to detect cantilever deflections. In addition, a flexure-guided scanner and a sinusoidal scan method were implemented. In this work, we imaged a grating sample in air by using a regular cantilever and a small cantilever with a resonance frequency of 5.5 MHz. Poor tracking was seen at the scan rate of 50 line/s when a cantilever for regular AFM imaging was used. Using a small cantilever at the scan rate of 100 line/s revealed no significant degradation in the topographic images. The results indicate that a smaller cantilever can achieve a higher scan rate and superior force sensitivity. This work shows the potential for using a DVD pickup head in future HS-AFM technology.

  4. Forced convective flow and heat transfer of upward cocurrent air-water slug flow in vertical plain and swirl tubes

    SciTech Connect (OSTI)

    Chang, Shyy Woei [Thermal Fluids Laboratory, National Kaohsiung Marine University, No. 142, Haijhuan Road, Nanzih District, Kaohsiung City 81143 (China); Yang, Tsun Lirng [Department of Marine Engineering, National Kaohsiung Marine University, No. 142, Haijhuan Road, Nanzih District, Kaohsiung City 81143 (China)

    2009-10-15T23:59:59.000Z

    This experimental study comparatively examined the two-phase flow structures, pressured drops and heat transfer performances for the cocurrent air-water slug flows in the vertical tubes with and without the spiky twisted tape insert. The two-phase flow structures in the plain and swirl tubes were imaged using the computerized high frame-rate videography with the Taylor bubble velocity measured. Superficial liquid Reynolds number (Re{sub L}) and air-to-water mass flow ratio (AW), which were respectively in the ranges of 4000-10000 and 0.003-0.02 were selected as the controlling parameters to specify the flow condition and derive the heat transfer correlations. Tube-wise averaged void fraction and Taylor bubble velocity were well correlated by the modified drift flux models for both plain and swirl tubes at the slug flow condition. A set of selected data obtained from the plain and swirl tubes was comparatively examined to highlight the impacts of the spiky twisted tape on the air-water interfacial structure and the pressure drop and heat transfer performances. Empirical heat transfer correlations that permitted the evaluation of individual and interdependent Re{sub L} and AW impacts on heat transfer in the developed flow regions of the plain and swirl tubes at the slug flow condition were derived. (author)

  5. Linkage to Previous International PV Module QA Task Force Workshops: Proposal for Rating System

    Broader source: Energy.gov [DOE]

    This PowerPoint presentation, focused on humidity, temperature and voltage testing, was originally presented at the NREL 2013 PV Module Reliability Workshop on Feb. 26-27, 2013 in Denver, CO. It summarizes the efforts of previous QA task forces and proposes a QA rating system to differentiate the relative durability of model designs.

  6. Attractiveness of periodic orbits in parametrically forced systems with time-increasing friction

    E-Print Network [OSTI]

    Bartuccelli, Michele

    Attractiveness of periodic orbits in parametrically forced systems with time- increasing friction with time-increasing friction Michele Bartuccelli,1,a) Jonathan Deane,1,b) and Guido Gentile2,c) 1 oscillator in the presence of friction, and study numerically how time-varying friction affects the dynamics

  7. Smart Materials as Sensors and Actuators for Lorentz Force Tuning System Przemyslaw Skalski

    E-Print Network [OSTI]

    Smart Materials as Sensors and Actuators for Lorentz Force Tuning System Przemyslaw Skalski-pulse detuning measurement 36 3.6. Conclusion 37 Chapter 4. Smart materials 39 4.1. Introduction 39 4 temperature 63 5.4. Capacitance change 67 5.5. Conclusion 69 #12;Smart Materials as Sensors and Actuators

  8. Investment-Grade Compressed Air System Audit, Analysis, and Upgrade in a Pulp and Paper Mill

    E-Print Network [OSTI]

    Parekh, P. S.

    INVESTMENT-GRADE COMPRESSED AIR SYSTEM AUDIT, ANALYSIS, AND UPGRADE IN A PULP & PAPER MILL Paresh S. Parekh, P.E. Principal ABSTRACT An investment-grade compressed air audit, analysis, design, and upgrade in an industrial facility requires a..., West Tacoma Division, located in Washington State, had production capability of 540 tons per day of recycle newsprint manufactured from TMP and recycled paper. Over the years, as mill capacity increased, various sizes and types of air compressor...

  9. Paper to be presented at IEEE High Assurance Softwar Software Engineering, Nov. 1999, DC. UML--Based Analysis of Embedded Systems

    E-Print Network [OSTI]

    Cheng, Betty H.C.

    ­96­1­0298, managed by Air Force's Rome Laboratories, and Eaton Corporation. veloping and modeling embedded systems

  10. Evaluation of an air drilling cuttings containment system

    SciTech Connect (OSTI)

    Westmoreland, J.

    1994-04-01T23:59:59.000Z

    Drilling at hazardous waste sites for environmental remediation or monitoring requires containment of all drilling fluids and cuttings to protect personnel and the environment. At many sites, air drilling techniques have advantages over other drilling methods, requiring effective filtering and containment of the return air/cuttings stream. A study of. current containment methods indicated improvements could be made in the filtering of radionuclides and volatile organic compounds, and in equipment like alarms, instrumentation or pressure safety features. Sandia National Laboratories, Dept. 61 11 Environmental Drilling Projects Group, initiated this work to address these concerns. A look at the industry showed that asbestos abatement equipment could be adapted for containment and filtration of air drilling returns. An industry manufacturer was selected to build a prototype machine. The machine was leased and put through a six-month testing and evaluation period at Sandia National Laboratories. Various materials were vacuumed and filtered with the machine during this time. In addition, it was used in an actual air drive drilling operation. Results of these tests indicate that the vacuum/filter unit will meet or exceed our drilling requirements. This vacuum/filter unit could be employed at a hazardous waste site or any site where drilling operations require cuttings and air containment.

  11. Privacy and Security Notice This Air Force ROTC Detachment 825 Website is provided as a public service by The

    E-Print Network [OSTI]

    Texas at Austin, University of

    specifications, and identifying system performance or problem areas. For site security purposes and to ensure

  12. Privacy and Security Notice "This Air Force ROTC Detachment 205 Website is provided as a public service by the

    E-Print Network [OSTI]

    Nickrent, Daniel L.

    specifications, and identifying system performance or problem areas. For site security purposes and to ensure

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

    E-Print Network [OSTI]

    Zhu, H.

    2006-01-01T23:59:59.000Z

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

  14. 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.

    2006-01-01T23:59:59.000Z

    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...

  15. Feasibility Study of Economics and Performance of Biopower at the Chanute Air Force Base in Rantoul, Illinois. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect (OSTI)

    Scarlata, C.; Mosey, G.

    2013-05-01T23:59:59.000Z

    The U.S. Environmental Protection Agency (EPA), in accordance with the RE-Powering America's Land initiative, selected the Former Chanute Air Force Base site in Rantoul, Illinois, for a feasibility study of renewable energy production. The National Renewable Energy Laboratory (NREL) was contacted to provide technical assistance for this project. The purpose of this study was to assess the site for a possible biopower system installation and estimate the cost, performance, and impacts of different biopower options.

  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.

    2006-01-01T23:59:59.000Z

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

  17. STATE OF CALIFORNIA AIR, WATER SIDE SYSTEM, SERVICE HOT WATER & POOL REQUIREMENTS

    E-Print Network [OSTI]

    /Cool 144(d) Economizer 144(e) Heat and Cool Air Supply Reset 144(f) Electric Resistance Heating1 144(g) Heat Rejection System §144 (h) Air Cooled Chiller Limitation §144 (i) Duct Leakage Sealing. If Yes, a MECH-4-A must be submitted 144(k) 1. Total installed capacity (MBtu/hr) of all electric heat

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

    E-Print Network [OSTI]

    Mohamed, E.; Abdalla, K. N.

    2010-01-01T23:59:59.000Z

    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...

  19. NGATS ATM-Airportal Project Reference Material (External Release) Next Generation Air Transportation System

    E-Print Network [OSTI]

    NGATS ATM-Airportal Project Reference Material (External Release) Next Generation Air Transportation System (NGATS) Air Traffic Management (ATM) - Airportal Project Reference Material May 23, 2007 Manager NASA Mike Madson Project Scientist NASA #12;NGATS ATM-Airportal Project Reference Material

  20. THE SCIENCE-POLICYINTERFACE:Using The Entire Scientific Toolbox To Enhance the Air Quality Management System

    E-Print Network [OSTI]

    Quality Management System The preceding chapters demonstrate the significant progress made during the last as an initial step to aid policy makers in designing and evaluating future management strategies. 5.1 THE AIR-QUALITY air-quality management processes, certain elements are common to each. These common elements

  1. Dust in the Earth system: The biogeochemical linking of land, air, and

    E-Print Network [OSTI]

    Kohfeld, Karen

    1 Dust in the Earth system: The biogeochemical linking of land, air, and sea Andy Ridgwell1 of CO2 from the atmosphere. The complex way in which dust biogeochemically links land, air, and sea of atmospheric aerosols. In this review, however, we consider dust to be soil mineral fragments. The entrainment

  2. Feedback air-fuel control system for Stirling engines

    SciTech Connect (OSTI)

    Monahan, R.

    1991-11-19T23:59:59.000Z

    This patent describes improvement in combination with a Stirling engine having an air-fuel ratio control and an exhaust gas emission outlet. The improvement comprises an oxygen sensor in communication with the exhaust gas emission outlet for generating an output signal representative of the oxygen content in the outlet; a sensor signal conditioning unit for adapting the output signal to a conditioned input signal for a microprocessor; and a microprocessor controlled pilot for adjusting the air-fuel control in response to the control input signal.

  3. Want Some Money Back from your Compressed Air System? Check Out These Top 10 Areas to Look

    E-Print Network [OSTI]

    Van Ormer, H.

    2004-01-01T23:59:59.000Z

    Compressed air is often overlooked in energy studies because many people don't fully understand compressed air equipment, the air system or what it costs to produce compressed air power. For those willing to look and use some good old common sense it is...

  4. Experimental investigation on performance of ice storage air-conditioning system with separate heat pipe

    SciTech Connect (OSTI)

    Fang, Guiyin; Liu, Xu; Wu, Shuangmao [Department of Physics, Nanjing University, Nanjing 210093 (China)

    2009-11-15T23:59:59.000Z

    An experimental study on operation performance of ice storage air-conditioning system with separate helical heat pipe is conducted in this paper. The experimental system of ice storage air-conditioning system with separate heat pipe is set up. The performance parameters such as the evaporation pressure and the condensation pressure of refrigeration system, the refrigeration capacity and the COP (coefficient of performance) of the system, the IPF (ice packing factor) and the cool storage capacity in the cool storage tank during charging period, and the cool discharge rate and the cool discharge capacity in the cool storage tank, the outlet water temperature in the cool storage tank and the outlet air temperature in room unit during discharging period are investigated. The experimental results show that the ice storage air-conditioning system with separate helical heat pipe can stably work during charging and discharging period. This indicates that the ice storage air-conditioning system with separate helical heat pipe is well adapted to cool storage air-conditioning systems in building. (author)

  5. Effects of system cycling, evaporator airflow, and condenser coil fouling on the performance of residential split-system air conditioners

    E-Print Network [OSTI]

    Dooley, Jeffrey Brandon

    2005-02-17T23:59:59.000Z

    EFFECTS OF SYSTEM CYCLING, EVAPORATOR AIRFLOW, AND CONDENSER COIL FOULING ON THE PERFORMANCE OF RESIDENTIAL SPLIT-SYSTEM AIR CONDITIONERS A Thesis by JEFFREY BRANDON DOOLEY Submitted to the Office of Graduate Studies... COIL FOULING ON THE PERFORMANCE OF RESIDENTIAL SPLIT-SYSTEM AIR CONDITIONERS A Thesis by JEFFREY BRANDON DOOLEY Submitted to Texas A&M University in partial fulfillment of the requirements for the degree of MASTER...

  6. International PV QA Task Force's Proposed Comparative Rating System for PV Modules: Preprint

    SciTech Connect (OSTI)

    Wohlgemuth, J.; Kurtz, S.

    2014-10-01T23:59:59.000Z

    The International PV Quality Assurance Task Force is developing a rating system that provides comparative information about the relative durability of PV modules. Development of accelerated stress tests that can provide such comparative information is seen as a major step toward being able to predict PV module service life. This paper will provide details of the ongoing effort to determine the format of such an overall module rating system. The latest proposal is based on using three distinct climate zones as defined in IEC 60721-2-1 for two different mounting systems. Specific stresses beyond those used in the qualification tests are being developed for each of the selected climate zones.

  7. Economic Analysis of a Waste Water Resource Heat Pump Air-Conditioning System in North China

    E-Print Network [OSTI]

    Chen, H.; Li, D.; Dai, X.

    2006-01-01T23:59:59.000Z

    This paper describes the situation of waste water resource in north China and the characteristics and styles of a waste water resource heat pump system, and analyzes the economic feasibility of a waste water resource heat pump air...

  8. Air-Cooled Condensers in Next-Generation Conversion Systems Geothermal...

    Open Energy Info (EERE)

    makeup. Though they use no water, air-cooling systems have higher capital costs, reduced power output (heat is rejected at a higher temperature), lower power sales due to higher...

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

    E-Print Network [OSTI]

    Zheng, G.

    2006-01-01T23:59:59.000Z

    Task conditioning aims to provide each occupant with personalized clean air direct to the breathing zone. The microenvironment of a typical office workplace, consisting of two desktop task conditioning systems (a Horizontal Desk Grill (HDG...

  10. Avionics and control system development for mid-air rendezvous of two unmanned aerial vehicles

    E-Print Network [OSTI]

    Park, Sanghyuk, 1973-

    2004-01-01T23:59:59.000Z

    A flight control system was developed to achieve mid-air rendezvous of two unmanned aerial vehicles (UAVs) as a part of the Parent Child Unmanned Aerial Vehicle (PCUAV) project at MIT and the Draper Laboratory. A lateral ...

  11. Analysis of a Retrofitted Thermal Energy Storage Air-conditioning System of a Marine Museum.

    E-Print Network [OSTI]

    Yu, Po-wen

    2005-01-01T23:59:59.000Z

    ??Thermal energy storage(TES) air-conditioning system is a electrical load management technology with great potential to shift load from peak to off-peak utility periods. TES is… (more)

  12. E-Print Network 3.0 - air sampling system Sample Search Results

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

    system... in correlation to the air exchange rate and the sampling duration time for an ice rink arena. The theoretical ACH... higher values ( i.e. areas very close to the main...

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

    E-Print Network [OSTI]

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

    2010-01-01T23:59:59.000Z

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

  14. Decentralized robust control-system for a non-square MIMO system, the air-path of a turbocharged Diesel engine

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    and greenhouse gas pollutants. In this paper, a non-square multivariable controller for the air-path systemDecentralized robust control-system for a non-square MIMO system, the air-path of a turbocharged the performance of the proposed control-system. Keywords: Diesel engine air path, Robust control, CRONE

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

    E-Print Network [OSTI]

    Khattar, M. K.; Keebaugh, D.

    1987-01-01T23:59:59.000Z

    DIRECT-EXPANSION AIR-CONDITIONING SYSTEM PERFORMANCE IN LOW HUMIDITY APPLICATIONS: A CASE STUDY MUKESH K. KHATTAR, P.E. DENNIS KEEBAUGH, P.E. Senior Systems Engineer Senior Research Engineer Florida Solar Energy Center Shenandoah Solar Center... warehouse. The flat gravel roof is exposed to sun. The 16' ceiling is insulated with two inch spray foam. Entrance to the warehouse is through sealed and insulated doors located on the west partition wall. The air -conditioning sys tem on this leased...

  16. A mathematical model for air brake systems in the presence of leaks

    E-Print Network [OSTI]

    Ramaratham, Srivatsan

    2008-10-10T23:59:59.000Z

    A MATHEMATICAL MODEL FOR AIR BRAKE SYSTEMS IN THE PRESENCE OF LEAKS A Thesis by SRIVATSAN RAMARATHNAM Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... August 2008 Major Subject: Mechanical Engineering A MATHEMATICAL MODEL FOR AIR BRAKE SYSTEMS IN THE PRESENCE OF LEAKS A Thesis by SRIVATSAN RAMARATHNAM Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment...

  17. Engineering Design Example CompressedCompressed--Air System for a Manufacturing PlantAir System for a Manufacturing Plant

    E-Print Network [OSTI]

    Kostic, Milivoje M.

    *1.35=1900 cfm. · Centrifugal or reciprocating compressor may be chosen (later). From handbooks: P kk /)1 to operate C/A tools: Compressor and piping layoutCompressor and piping layout Air supply circumferentially: · Estimate the load [cfm] based on current and future demand. · Size the compressor(s). · Size the pipes so

  18. A new class of high force, low-voltage, compliant actuation system

    SciTech Connect (OSTI)

    RODGERS,M. STEVEN; KOTA,SRIDHAR; HETRICK,JOEL; LI,ZHE; JENSEN,BRIAN D.; KRYGOWSKI,THOMAS W.; MILLER,SAMUEL L.; BARNES,STEPHEN MATTHEW; BURG,MICHAEL STANLEY

    2000-04-10T23:59:59.000Z

    Although many actuators employing electrostatic comb drives have been demonstrated in a laboratory environment, widespread acceptance in mass produced microelectromechanical systems (MEMS) may be limited due to issues associated with low drive force, large real estate demands, high operating voltages, and reliability concerns due to stiction. On the other hand, comb drives require very low drive currents, offer predictable response, and are highly compatible with the fabrication technology. The expand the application space and facilitate the widespread deployment of self-actuated MEMS, a new class of advanced actuation systems has been developed that maintains the highly desirable aspects of existing components, while significantly diminishing the issues that could impede large scale acceptance. In this paper, the authors will present low-voltage electrostatic actuators that offer a dramatic increase in force over conventional comb drive designs. In addition, these actuators consume only a small fraction of the chip area previously used, yielding significant gains in power density. To increase the stroke length of these novel electrostatic actuators, the authors have developed highly efficient compliant stroke amplifiers. The coupling of compact, high-force actuators with fully compliant displacement multipliers sets a new paradigm for highly integrated microelectromechanical systems.

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

    E-Print Network [OSTI]

    Yoshida, H.; Noda, T.

    2014-01-01T23:59:59.000Z

    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...-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 7 ESL-IC-14...

  20. Promising future energy storage systems: Nanomaterial based systems, Zn-air and electromechanical batteries

    SciTech Connect (OSTI)

    Koopman, R.; Richardson, J.

    1993-10-01T23:59:59.000Z

    Future energy storage systems will require longer shelf life, higher duty cycles, higher efficiency, higher energy and power densities, and be fabricated in an environmentally conscious process. This paper describes several possible future systems which have the potential of providing stored energy for future electric and hybrid vehicles. Three of the systems have their origin in the control of material structure at the molecular level and the subsequent nanoengineering into useful device and components: aerocapacitors, nanostructure multilayer capacitors, and the lithium ion battery. The zinc-air battery is a high energy density battery which can provide vehicles with long range (400 km in autos) and be rapidly refueled with a slurry of zinc particles and electrolyte. The electromechanical battery is a battery-sized module containing a high-speed rotor integrated with an iron-less generator mounted on magnetic bearings and housed in an evacuated chamber.

  1. US Air Force installation restoration program: Remedial investigation of former herbicide storage site at Johnston Island, Pacific Ocean

    SciTech Connect (OSTI)

    Not Available

    1988-09-01T23:59:59.000Z

    This report represents a synthesis and reformatting of six primary documents and other related materials on soils, ocean sediments, air, and biota investigations conducted at Johnston Island (JI), Pacific Ocean, to characterize contamination resulting from storage of 1.37 million gallons of Herbicide Orange (HO) from 1972 through 1977. The individual study components comprise the Remedial Investigation (RI) of the former HO storage site at JI. This report describes the procedures, results, and conclusions of the sampling and analysis programs conducted at JI. Samples of site soils, ocean sediments, airborne particulates, dust, sweepings, and aquatic organisms were collected and analyzed for HO-derived 2,4-dichlorophenoxyacetic acid (2,4-D), 2,4,5-trichlorophenoxyacetic acid (2,4,5-T), and 2,3,7,8- tetrachlorodibenzo-p-dioxin (TCDD). Environmental media other than soils at the storage facility itself were found to be free of contamination or to contain very low contaminant concentrations. No contamination was found in ocean sediments, indicating possible dispersion of contaminants due to erosion. A few of the biological specimens collected were found to contain TCDD levels below the guidelines of 25 to 50 parts per trillion established by the US Food and Drug Administration; TCDD in all other biota samples was nondetectable. Analysis of samples of airborne particulates and of soils, dust, and sweepings from high-use and residential areas outside the boundaries of the former storage site indicated that there is little or no concern of adverse impacts from airborne transport and deposition of TCDD.

  2. Pollution Control in a Manufacturing System Stochastic Models for Analysis and Control of Air Pollution

    E-Print Network [OSTI]

    Gosavi, Abhijit

    Pollution Control in a Manufacturing System Stochastic Models for Analysis and Control of Air Pollution in a Manufacturing System Jan, 1, 2005 Technical Report SOPTL-05-01 Missouri University of Science models that can be used for controlling pollution in a manufacturing system. The models are developed

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

    E-Print Network [OSTI]

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

    2006-01-01T23:59:59.000Z

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

  4. Modeling and control of an open accumulator Compressed Air Energy Storage (CAES) system for wind turbines q

    E-Print Network [OSTI]

    Li, Perry Y.

    Modeling and control of an open accumulator Compressed Air Energy Storage (CAES) system for wind compressed air energy storage. Maximizes energy production, levels load, downsizes electrical parts, meets presents the modeling and control for a novel Compressed Air Energy Storage (CAES) system for wind turbines

  5. STUDY OF FROST GROWTH ON HEAT EXCHANGERS USED AS OUTDOOR COILS IN AIR SOURCE HEAT PUMP SYSTEMS

    E-Print Network [OSTI]

    STUDY OF FROST GROWTH ON HEAT EXCHANGERS USED AS OUTDOOR COILS IN AIR SOURCE HEAT PUMP SYSTEMS OF FROST GROWTH ON HEAT EXCHANGERS USED AS OUTDOOR COILS IN AIR SOURCE HEAT PUMP SYSTEMS Dissertation . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3.5.3 Air Side Heat Transfer Rates . . . . . . . . . . . . . . . . . . 43 3.5.4 Fluid Side Heat

  6. AirTec System Co Ltd | 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 Office of Inspector GeneralDepartmentAUDIT REPORTOpenWende NewSowitecAWSAgri-Energy LLCAir Energy GmbH JumpAirTec

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

    E-Print Network [OSTI]

    Bain, Joel Alan

    1995-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

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

    2006-01-01T23:59:59.000Z

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

  9. An application of a meteorological data assimilation system to an air quality simulation

    SciTech Connect (OSTI)

    Moon, D.; Pai, P.

    1999-07-01T23:59:59.000Z

    The need to calculate air pollutant exposure metrics for longer time periods, i.e., seasonal and annual, has generated a need to conduct long-term simulations using regional-scale Eulerian air quality models. Hourly-resolved meteorological and micro-meteorological fields for an entire year are required as input to the air quality models. In this paper, the authors describe the application of a meteorological data assimilation system to provide high-quality fields to drive a regional air quality model. The process of assimilation blends multiple data sources (large-scale gridded data, surface and upper air observations, satellite imagery, and radar data) into a unified atmospheric representation. The authors have used an assimilation system developed at the Center for the Analysis and Prediction of Storms at the University of Oklahoma. The modeling domain covers most of North America and 1995 was chosen as the simulation year. The data used in the assimilation include the NCAR/NCEP global reanalysis fields combined with North American surface and radiosonde data. The authors will describe modifications made to the assimilation system to enable estimation of a number of air-quality related quantities not normally calculated, such as Monin-Obhukov length and friction velocity. While the system supports a state-of-the-art three-dimensional cloud and hydrometeor field analysis based on background fields, surface observations, satellite, and radar; a simpler approach was developed in this study to estimate cloud fractional coverage based on the gridded relative humidity values.

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

    E-Print Network [OSTI]

    Zhang, Hui; Edward, Arens; Pasut, Wilmer

    2012-01-01T23:59:59.000Z

    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

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

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    system represents a fan coil unit (FCU) system, consistingEnergy use intensity EUI Fan coil unit F CU HVAC electricityarea Fan powered terminal unit (with heating coil) used for

  12. Combined fuel and air staged power generation system

    SciTech Connect (OSTI)

    Rabovitser, Iosif K; Pratapas, John M; Boulanov, Dmitri

    2014-05-27T23:59:59.000Z

    A method and apparatus for generation of electric power employing fuel and air staging in which a first stage gas turbine and a second stage partial oxidation gas turbine power operated in parallel. A first portion of fuel and oxidant are provided to the first stage gas turbine which generates a first portion of electric power and a hot oxidant. A second portion of fuel and oxidant are provided to the second stage partial oxidation gas turbine which generates a second portion of electric power and a hot syngas. The hot oxidant and the hot syngas are provided to a bottoming cycle employing a fuel-fired boiler by which a third portion of electric power is generated.

  13. 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.

    2006-01-01T23:59:59.000Z

    ICEBO2006, Shenzhen, China HVAC Technologies for Energy Efficiency Vol.IV-2-1 Economical Analysis of the Cold Air Distribution System: A Case Study Jiancheng Zhao Limin Niu Zhe Zhou Juan Li Professor Postgraduate... and beverage. The 4th storey underground is the garage and goods and materials storehouse partly which is for people's air defense in wartime, the 3rd ICEBO2006, Shenzhen, China HVAC Technologies for Energy Efficiency Vol.IV-2-1 storey underground...

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

    SciTech Connect (OSTI)

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

    2011-07-31T23:59:59.000Z

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

  15. Dynamics of Low-Pressure and High-Pressure Fuel Cell Air Supply System1

    E-Print Network [OSTI]

    Peng, Huei

    comparing the low pressure system with the high- pressure system equipped with a high-speed compressor pressure of the FC that is defined as the pressure at which the reactant hydrogen and oxygen (air) are delivered to the FC stack flow fields. In the case of stored compressed hydrogen the pressure of the cathode

  16. Recovering Energy with a Compressed Air System Program

    E-Print Network [OSTI]

    Nipper, J.

    2014-01-01T23:59:59.000Z

    but represent 26% of savings opportunity. ? Work that involves removal of instruments, instrument tubing or piping must be leak checked after system is re-energized. ? Equipment, systems and components can wear, so they must be leak checked with some routine...

  17. Research Statement of Hamsa Balakrishnan The air transportation system is a complex, global system that transports over 2.1 billion

    E-Print Network [OSTI]

    Gummadi, Ramakrishna

    is important because of the high costs of delays and pollution today, as well as the projected doubling in airResearch Statement of Hamsa Balakrishnan The air transportation system is a complex, global system that transports over 2.1 billion passengers each year. Air traffic delays have become a huge problem

  18. Research Statement of Hamsa Balakrishnan The air transportation system is a large, complex, global system that transports over 2.1 billion

    E-Print Network [OSTI]

    Research Statement of Hamsa Balakrishnan The air transportation system is a large, complex, global system that transports over 2.1 billion passengers each year. Air traffic delays have become a huge to the Joint Economic Committee of the US Senate, domestic air traffic delays in 2007 cost airlines over $19

  19. Predictability of European air quality: Assessment of 3 years of operational forecasts and analyses by the PREV'AIR system

    E-Print Network [OSTI]

    Menut, Laurent

    - ments are still needed to manage and control the impacts of air pollution on health. [3] Facing, is proved to improve ozone forecasts, especially when photochemical pollution episodes occur. The PREV'AIR and laws regarding the pollutants of utmost importance in relation to human health, air pollution is still

  20. Method and apparatus for operating a self-starting air heating system

    DOE Patents [OSTI]

    Heinrich, Charles E. (Mentor, OH)

    1983-12-06T23:59:59.000Z

    A self-starting, fuel fired, air heating system including a fuel burner fired vapor generator, a turbine, and a condenser connected in a closed circuit such that the vapor output from the vapor generator is conducted to the turbine and then to the condenser where it is condensed for return to the vapor generator. The turbine drives an air blower which passes air over the condenser for cooling the condenser and heating the air. Also, a condensate pump is driven by the turbine. The disclosure is particularly concerned with a method and apparatus which on start-up prevents the vapor generator's vapor output from being conducted to the turbine until a predetermined pressure differential has been achieved. However, after the vapor flow is once permitted, it cannot again be prevented until after the fuel burner has been shut off and restarted.

  1. Abstract--A novel compressed air energy storage system for wind turbine is proposed. It captures excess power prior to

    E-Print Network [OSTI]

    Li, Perry Y.

    Abstract-- A novel compressed air energy storage system for wind turbine is proposed. It captures instead of supply. Energy is stored in a high pressure dual chamber liquid-compressed air storage vessel components can be downsized for demand instead of supply. A novel Compressed Air Energy Storage (CAES

  2. Controlled air injection for a fuel cell system

    DOE Patents [OSTI]

    Fronk, Matthew H. (Honeove Falls, NY)

    2002-01-01T23:59:59.000Z

    A method and apparatus for injecting oxygen into a fuel cell reformate stream to reduce the level of carbon monoxide while preserving the level of hydrogen in a fuel cell system.

  3. Cooling load differences between radiant and air systems

    E-Print Network [OSTI]

    Feng, Jingjuan Dove; Schiavon, Stefano; Bauman, Fred

    2013-01-01T23:59:59.000Z

    radiant heat transfer for cooling load calculation.heat gain is well recognized by cooling load calculationload calculation approach for radiant systems, Corgnati [17] also tackled the direct radiant heat

  4. Computation of Slow Invariant Manifolds for Hydrogen-Air Systems

    E-Print Network [OSTI]

    · Summary #12;Introduction Motivation and background · Detailed kinetics are essential for accurate modeling systems · ILDM, CSP, and ICE-PIC are approximations of the reaction slow invariant manifold. · MEPT

  5. Hydrazine engine start system air start performance and controls sizing

    SciTech Connect (OSTI)

    Johnson, A.T.

    1992-01-01T23:59:59.000Z

    Hydrazine has been used as an energy source in many applications to fuel in-flight main engine starting. In a current application, an existing hydrazine engine start system (ESS) design was adapted to meet new fuel control requirements. This paper presents a brief system description, historical context, and the motivating factors for the hydrazine controls changes and three case studies of controls design and analysis from the ESS program. 4 refs.

  6. A comparative assessment of alternative combustion turbine inlet air cooling system

    SciTech Connect (OSTI)

    Brown, D.R.; Katipamula, S.; Konynenbelt, J.H.

    1996-02-01T23:59:59.000Z

    Interest in combustion turbine inlet air cooling (CTAC) has increased during the last few years as electric utilities face increasing demand for peak power. Inlet air cooling increases the generating capacity and decreases the heat rate of a combustion turbine during hot weather when the demand for electricity is generally the greatest. Several CTAC systems have been installed, but the general applicability of the concept and the preference for specific concepts is still being debated. Concurrently, Rocky Research of Boulder City, Nevada has been funded by the U.S. Department of Energy to conduct research on complex compound (ammoniated salt) chiller systems for low-temperature refrigeration applications.

  7. AIR FORCE SPECIAL WEAPONS CENTER

    Office of Legacy Management (LM)

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment ofDepartment ofof EnergyYou$0.C. 20545 OCTTO:March_ ,'I- i.(

  8. Impact analysis of a flexible air transportation system

    E-Print Network [OSTI]

    Bierlaire, Michel

    -OR), School of Architecture, Civil and Envi- ronmental Engineering (ENAC), Ecole Polytechnique F´ed´erale de)1 . Consequently, sustainability of current transportation systems is threat- ened by increased energy consumption, re- sulting in frequent congestion and delays. The trade-off between the sustainability

  9. A diagnostic system for air brakes in commercial vehicles

    E-Print Network [OSTI]

    Coimbatore Subramanian, Shankar Ram

    2007-09-17T23:59:59.000Z

    to maintenance and hence they require frequent inspections. Current inspection techniques require an inspector to go underneath a vehicle to check the brake system for possible faults, such as leaks, worn brake pads, out-of-adjustment of push rods, etc...

  10. Alternate Air Delivery Systems for Hot and Humid Climates

    E-Print Network [OSTI]

    Wallace, M.

    1996-01-01T23:59:59.000Z

    Carter & Burgess first began using triple deck multi-zone units, in place of traditional VAV systems, on the Texas State Capitol restoration. Since the completion of that project design in early 1991, our firm has now used triple deck multi...

  11. A Wireless Differential Protection System for Air-Core Inductors

    E-Print Network [OSTI]

    Brown III, Donald R.

    of these medium voltage (MV) inductors is relatively simple by comparison where most are typically designed as dry-type, Inductors, Transformers, Communication systems. I. Introduction Distributed capacitance in AC transmission inductors on the tertiary side of a step-down transformer or auto- transformer [2]. The construction

  12. Development of standardized air-blown coal gasifier/gas turbine concepts for future electric power systems

    SciTech Connect (OSTI)

    Sadowski, R.S.; Brown, M.J.; Hester, J.C.; Harriz, J.T.; Ritz, G.J.

    1991-02-01T23:59:59.000Z

    The objective of this study is to develop standardized air blown fixed bed gasification hot gas cleanup integrated gasifier combined cycle (IGCC) systems.

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

    E-Print Network [OSTI]

    Kimla, John

    2010-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Browning, B. K.

    2002-01-01T23:59:59.000Z

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

  15. Free Air CO2 Enrichment (FACE) Data Management System

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    The DOE Biological and Environmental Research Program (BER) is responsible for four "core" FACE sites and projects. These are known as Aspen FACE, Duke FACE, ORNL FACE, and Nevada Deseret FACE. Brookhaven provides operational support to some of these sites, while The FACE Data Management System at ORNL and CDIAC serves as a data repository. In addition, DOE supports OTC experiments in conjunction with the Smithsonian Environmental Research Center (SERC) in Maryland and Florida. There are also FACE experiments ongoing in other countries. [Quoted from the home page of the FACE Data Management System and other pages within the web site.] The FACE Data Management System at ORNL provides links to all the FACE and SERC sites and to the data (both the data archived at CDIAC and data still residing on site-specific pages). Users are also given in-depth information on the concept, provided with a full, linked list of international projects, and guided to related research. The FACE projects were part of the CO2 research network fostered by the Global Change and Terrestrial Ecosystems core project of the International Geosphere-Biosphere Programme. Results from the experiment contribute to the Terrestrial Ecosystem Response to Atmospheric and Climatic Change (TERACC) project, a 5-year initiative integrating experimental data and global change modeling.

  16. Thermal decay in underfloor air distribution (UFAD) systems: Fundamentals and influence on system performance

    E-Print Network [OSTI]

    Lee, Kwang Ho; Schiavon, Stefano; Bauman, Fred; Webster, Tom

    2012-01-01T23:59:59.000Z

    zones. Variable-speed fan coil units ( FCU) supply air tounit (AHU) including an economizer, chilled water cooling coil, hot water heating coil and supply fan.

  17. Thermal decay in underfloor air distribution (UFAD) systems: Fundamentals and influence on system performance

    E-Print Network [OSTI]

    Lee, Kwang Ho; Schiavon, Stefano; Bauman, Fred; Webster, Tom

    2012-01-01T23:59:59.000Z

    a comparison of room cooling load and supply air to roomtemperatures, cooling load profiles, supply airflow rate,water cooling coil, hot water heating coil and supply fan.

  18. Radiation control coatings installed on federal buildings at Tyndall Air Force Base. Volume 1: Pre-coating monitoring and fresh coating results

    SciTech Connect (OSTI)

    Petrie, T.W.; Childs, P.W.

    1997-02-01T23:59:59.000Z

    The US Department of Energy`s (DOE`s) Federal Energy Management Program (FEMP) supports efforts to reduce energy use and associated expenses in the federal sector. One such effort, the New Technology Demonstration Program (NTDP), seeks to evaluate new energy-saving US technologies and secure their more timely adoption by the US government. Through a partnership with a federal site, the utility serving the site, a manufacturer of an energy-related technology, and other organizations associated with these interests, DOE can evaluate a new technology. The results of the program give federal agency decision makers more hands-on information with which to validate a decision to utilize a new technology in their facilities. The partnership of these interests is secured through a cooperative research and development agreement (CRADA), in this case between Lockheed Martin Energy Research Corporation, the manager of the Oak Ridge National Laboratory (ORNL), Oak Ridge, Tennessee, and ThermShield International, Ltd., the manufacturer of the technology. This is the first volume of a two-volume report that describes the effects of radiation control coatings installed on federal buildings at Tyndall Air Force Base (AFB) in Florida by ThermShield International. ORNL`s Buildings Technology Center (BTC) was assigned the responsibility for gathering, analyzing, and reporting on the data to describe the effects of the coatings. This volume describes the monitoring plan and its implementation, the results of pre-coating monitoring, the coating installation, results from fresh coatings compared to pre-coating results, and a plan to decommission the monitoring equipment. By including results from roofs at Tyndall AFB and from an outdoor test facility at the BTC, the data cover the range from poorly insulated to well-insulated roofs and two kinds of radiation control coatings on various roof membranes.

  19. Building Pressure Control in VAV System with Relief Air Fan

    E-Print Network [OSTI]

    Pang, X.; Liu, M.; Zheng, B.

    2005-01-01T23:59:59.000Z

    , recently, Wang and Liu developed a motor power based fan airflow station., which determines the fan airflow using the measured fan motor power, the fan speed or control system command to VFD, and the in-situ fan motor power curve. Since the fan power... power can be obtained directly from VFD [5]. The motor power based fan airflow station method can be applied to the fan-tracking to perform a better building pressurization. The theory of the motor power based fan airflow station can be referred...

  20. Three-wheel air turbocompressor for PEM fuel cell systems

    DOE Patents [OSTI]

    Rehg, Tim; Gee, Mark; Emerson, Terence P.; Ferrall, Joe; Sokolov, Pavel

    2003-08-19T23:59:59.000Z

    A fuel cell system comprises a compressor and a fuel processor downstream of the compressor. A fuel cell stack is in communication with the fuel processor and compressor. A combustor is downstream of the fuel cell stack. First and second turbines are downstream of the fuel processor and in parallel flow communication with one another. A distribution valve is in communication with the first and second turbines. The first and second turbines are mechanically engaged to the compressor. A bypass valve is intermediate the compressor and the second turbine, with the bypass valve enabling a compressed gas from the compressor to bypass the fuel processor.

  1. Identification of force coefficients in flexible rotor-bearing systems - enhancements and further validations

    E-Print Network [OSTI]

    Balantrapu, Achuta Kishore Rama Krishna

    2005-11-01T23:59:59.000Z

    identification of bearing force parameters, i.e. stiffness and damping coefficients, is one of the most difficult to achieve. Field identification by imbalance response measurements is a simple and often reliable way to determine synchronous speed force...

  2. ALTERNATE HIGH EFFICIENCY PARTICULATE AIR (HEPA) FILTRATION SYSTEM

    SciTech Connect (OSTI)

    Bruce Bishop; Robert Goldsmith; Karsten Nielsen; Phillip Paquette

    2002-08-16T23:59:59.000Z

    In Phase IIA of this project, CeraMem has further developed and scaled up ceramic HEPA filters that are appropriate for use on filtration of vent gas from HLW tanks at DOE sites around the country. This work included procuring recrystallized SiC monoliths, developing membrane and cement materials, and defining a manufacturing process for the production of prototype full sizes HEPA filters. CeraMem has demonstrated that prototype full size filters can be manufactured by producing 9 full size filters that passed DOP aerosol testing at the Oak Ridge Filter Test Facility. One of these filters was supplied to the Savannah River Technical Center (SRTC) for process tests using simulated HLW tank waste. SRTC has reported that the filter was regenerable (with some increase in pressure drop) and that the filter retained its HEPA retention capability. CeraMem has also developed a Regenerable HEPA Filter System (RHFS) design and acceptance test plan that was reviewed by DOE personnel. The design and acceptance test plan form the basis of the system proposal for follow-on work in Phase IIB of this project.

  3. Duct System Flammability and Air Sealing Fire Separation Assemblies in the International Residential Code

    SciTech Connect (OSTI)

    Rudd, A.; Prahl, D.

    2014-12-01T23:59:59.000Z

    IBACOS identified two barriers that limit the ability of builders to cost-effectively achieve higher energy efficiency levels in housing. These are (1) the use of duct system materials that inherently achieve airtightness and are appropriately sized for low-load houses and (2) the ability to air seal fire separation assemblies. The issues identified fall into a gray area of the codes.

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

    E-Print Network [OSTI]

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

    2006-01-01T23:59:59.000Z

    , and the ceiling cooling system deals with the other part of sensible loads in the air-conditioned zone, so that the condensation on radiant panels and the insufficiency of cooling capacity can be avoided. The cooling water at 18? used in the cooling coils...

  5. MAQS: A Personalized Mobile Sensing System for Indoor Air Quality Monitoring

    E-Print Network [OSTI]

    Dick, Robert

    quality (IAQ) influences human health, safety, productivity, and comfort. This paper describes MAQS, a personalized mobile sensing system for IAQ monitoring. In contrast with existing stationary or out- door air personalized IAQ information. To improve accuracy and energy efficiency, MAQS incorporates three novel

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

    E-Print Network [OSTI]

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

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

  7. How to Substantially Reduce the Biggest Energy Wasters in Compressed Air Systems

    E-Print Network [OSTI]

    Kemp, H. L.

    2005-01-01T23:59:59.000Z

    will vary from $2,190 per year to vortex type to $438 per year top heated pipe. A full treatment of the subject is available in the book ENERGY SAVINGS IN COMPRESSED AIR SYSTEMS, authored by Hank van Ormer, Air Power USA Inc. As much as 75% to 80...% energy savings are available by prudent selection and application of cabinet coolers. OPEN BLOWS Open blows in various material moving processes offer exceptional energy conservation opportunities Often times we find 1/4" open tubes blowing...

  8. Consideration of air jet angle in open surface tank push-pull ventilation system design

    E-Print Network [OSTI]

    Chan, Wai-Hung David

    1983-01-01T23:59:59.000Z

    CONSIDERATION OF AIR JET ANGLE IN OPEN SURFACE TANK PUSH-PULL VENTILATION SYSTEM DESIGN A Thesis by WAI-HUNG DAVID CHAN Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement for the degree o... MASTER OF SCIENCE May 1983 Major Subjeot: Industrial Hygiene CONSIDERATION OF AIR JET ANGLE IN OPEN SURFACE TANK PUSH-PULL VENTILATION STSTEM DESIGN A Thesis by WAI-HUNG DAVID CHAN Approved as to style and content by: (C an of mmittee) J. Suggs...

  9. Monitored Performance of an Office Building with an Under-floor Air Distribution System

    E-Print Network [OSTI]

    Walker, C.; Norford, L.

    2005-01-01T23:59:59.000Z

    - conditioning equipment was assessed and energy and ventilation improvements suggested. The building was found to fall within good practice and standard practice for energy usage in air-conditioned commercial office buildings for the United Kingdom.... However, if not installed or designed properly, these systems can use as much or more energy than a conventional HVAC system. The results of long-term monitoring and short-term measurements in a commercial office building with a UFAD are presented...

  10. Simplified calculation method for design cooling loads in underfloor air distribution (UFAD) systems

    E-Print Network [OSTI]

    Schiavon, Stefano; Lee, Kwang Ho; Bauman, Fred; Webster, Tom

    2010-01-01T23:59:59.000Z

    Underfloor Air Distribution (UFAD) Design Guide, Americanfor design cooling loads in Underfloor Air Distribution (for design cooling loads in underfloor air distribution (

  11. Development of a simplified cooling load design tool for underfloor air distribution (UFAD) systems.

    E-Print Network [OSTI]

    Schiavon, Stefano; Lee, Kwang Ho; Bauman, Fred; Webster, Tom

    2010-01-01T23:59:59.000Z

    Underfloor Air Distribution (UFAD) Design Guide, Atlanta:application and design of underfloor air distributionfor design cooling loads in underfloor air distribution (

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

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

    Underfloor Air Distribution (UFAD) Design Guide. Atlanta:to design and operate underfloor air distribution (UFAD)DESIGN AND OPERATING CONDITIONS ON UNDERFLOOR AIR DISTRIBUTION (

  13. 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.

    2006-01-01T23:59:59.000Z

    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...

  14. Assuring safety through operational approval : challenges in assessing and approving the safety of systems-level changes in air transportation

    E-Print Network [OSTI]

    Weibel, Roland E. (Roland Everett)

    2010-01-01T23:59:59.000Z

    To improve capacity and efficiency of the air transportation system, a number of new systems-level changes have been proposed. Key aspects of the proposed changes are combined functionality across technology and procedures ...

  15. E-Print Network 3.0 - air flow system Sample Search Results

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

    is a vent for receiving the air curtain flow. The air curtain... not properly capture the air curtain flow, resulting in entrainment of the air curtain flow into the cabin... ......

  16. Linkage to Previous International PV Module QA Task Force Workshops; Proposal for Rating System (Presentation)

    SciTech Connect (OSTI)

    Kurtz, S.; Wohlgemuth, J.; Sample, T.; Yamamichi, M.; Kondo, M.

    2013-05-01T23:59:59.000Z

    This presentation gives the historical background of the creation of the International PV QA Task Force as an introduction to the PV Module Reliability Workshop.

  17. U.S. - Canada Power System Outage Task Force: Final Report on...

    Office of Environmental Management (EM)

    on the Implementation of Task Force Recommendations On August 14, 2003, the largest power blackout in North American history affected an area with an estimated 50 million...

  18. IEEE Transaction on Power Apparatus and Systems, Vol. PAS-103, No. 12, December 1984 EFFICIENT LARGE-SCALE HYDRO SYSTEM SCHEDULING WITH FORCED SPILL CONDITIONS

    E-Print Network [OSTI]

    Gross, George

    releases from each reservoir and through each power house so as to optimize the total benefit of the hydroIEEE Transaction on Power Apparatus and Systems, Vol. PAS-103, No. 12, December 1984 EFFICIENT LARGE-SCALE HYDRO SYSTEM SCHEDULING WITH FORCED SPILL CONDITIONS Yoshiro Ikura George Gross Systems

  19. A Method for Simulating Heat Recovery Systems Using AirModel in Implementations of the ASHRAE Simplified Energy Analysis Procedure

    E-Print Network [OSTI]

    Liu, C.; Zeig, M.; Claridge, D. E.; Wei, G.; Bruner, H.; Turner, W. D.

    2005-01-01T23:59:59.000Z

    exchanger to verify the return air ratio. In this comparison, the recovered energy from the return air was equalized with the heat transfer of the heat exchanger model. An example of this methodology was used to simulate the HVAC system with a heat... to be measured for further investigation to verify the AirModel simulation. This method can be applied in Energy Plus and other simulation tools/software to simulate the building exhaust energy recovery. Acknowledgements The work of this paper...

  20. A low cost, DC-coupled active vibration isolation system

    E-Print Network [OSTI]

    Miu, Kevin Kar-Leung

    2008-01-01T23:59:59.000Z

    In this thesis, I designed and implemented an isolation system that interfaces with traditional air mounts for improved force disturbance rejection relative to passive optical tables.Force disturbance rejection and position ...

  1. Integrated Air Pollution Control System (IAPCS), Executable Model (Version 4. 0) (for microcomputers). Model-Simulation

    SciTech Connect (OSTI)

    Not Available

    1990-10-29T23:59:59.000Z

    The Integrated Air Pollution Control System (IAPCS) Cost Model is an IBM PC cost model that can be used to estimate the cost of installing SO2, NOx, and particulate matter control systems at coal-fired utility electric generating facilities. The model integrates various combinations of the following technologies: physical coal cleaning, coal switching, overfire air/low NOx burners, natural gas reburning, LIMB, ADVACATE, electrostatic precipitator, fabric filter, gas conditioning, wet lime or limestone FGD, lime spray drying/duct spray drying, dry sorbent injection, pressurized fluidized bed combustion, integrated gasification combined cycle, and pulverized coal burning boiler. The model generates capital, annualized, and unitized pollutant removal costs in either constant or current dollars for any year.

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

    DOE Patents [OSTI]

    Ko, Suk M. (Huntsville, AL)

    1980-01-01T23:59:59.000Z

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

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

    SciTech Connect (OSTI)

    None

    2010-09-01T23:59:59.000Z

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

  4. Modeling the Air Flow in the 3410 Building Filtered Exhaust Stack System

    SciTech Connect (OSTI)

    Recknagle, Kurtis P.; Barnett, J. M.; Suffield, Sarah R.

    2013-01-23T23:59:59.000Z

    Additional ventilation capacity has been designed for the 3410 Building filtered exhaust stack system. The updated system will increase the number of fans from two to three and will include ductwork to incorporate the new fan into the existing stack. Stack operations will involve running various two-fan combinations at any given time. The air monitoring system of the existing two-fan stack was previously found to be in compliance with the ANSI/HPS N13.1-1999 standard, however it is not known if the modified (three-fan) system will comply. Subsequently, a full-scale three-dimensional (3-D) computational fluid dynamics (CFD) model of the modified stack system has been created to examine the sampling location for compliance with the standard. The CFD modeling results show good agreement with testing data collected from the existing 3410 Building stack and suggest that velocity uniformity and flow angles will remain well within acceptance criteria when the third fan and associated ductwork is installed. This includes two-fan flow rates up to 31,840 cfm for any of the two-fan combinations. For simulation cases in which tracer gas and particles are introduced in the main duct, the model predicts that both particle and tracer gas coefficients of variance (COVs) may be larger than the acceptable 20 percent criterion of the ANSI/HPS N13.1-1999 standard for each of the two-fan, 31,840 cfm combinations. Simulations in which the tracers are introduced near the fans result in improved, though marginally acceptable, COV values for the tracers. Due to the remaining uncertainty that the stack will qualify with the addition of the third fan and high flow rates, a stationary air blender from Blender Products, Inc. is considered for inclusion in the stack system. A model of the air blender has been developed and incorporated into the CFD model. Simulation results from the CFD model that includes the air blender show striking improvements in tracer gas mixing and tracer particle dispersion. The results of these simulations suggest the air blender should be included in the stack system to ensure qualification of the stack.

  5. Identification of the Flow Resistance Coefficient and Validation of a Building Air Conditioning System

    E-Print Network [OSTI]

    Hou, Z.; Lian, Z.

    2006-01-01T23:59:59.000Z

    for HRC estimation is investigated in this paper. And some conclusions can be got as follows: 1) The MGO method is applicable for S value identification. The method is based on the principle for multi goal optimization. The process can be widely used...ICEBO2006, Shenzhen, China HVAC Technologies for Energy Efficiency, Vol. IV-11-2 Zhijian Hou Identification of the Flow Resistance Coefficient and Validation of a Building Air Conditioning System Zhiwei Lian...

  6. Variable Speed Drive Volumetric Tracking (VSDVT) for Airflow Control in Variable Air Volume (VAV) Systems

    E-Print Network [OSTI]

    Liu, M.

    2002-01-01T23:59:59.000Z

    Volume Systems.? Proceedings of ACEEE 1994 Summer Study on Energy Efficiency in Buildings, Vol. 5, pp. 219-223. 3. Liu M., Zhu Y., Claridge D.E., and White E., 1997. ?Impact of Static Pressure Set Level on HVAC Energy Consumption and Indoor... developed to ensure the air delivery to each space or zone. These methods include the static pressure control method and the damper position control method. The static pressure control method maintains a sufficient static pressure in the main duct...

  7. Reducing Building Energy Costs Using Optimized Operation Strategies for Constant Volume Air Handling Systems

    E-Print Network [OSTI]

    Liu, M.; Athar, A.; Reddy, A.; Claridge, D. E.; Haberl, J. S.; White, E.

    1994-01-01T23:59:59.000Z

    SDCVP 67.380 $153.200 $41.800 $195.000 $2.89 measured energy consumption for each building. The horizontal axis is the ambient temperature. The venical axis is the average daily energy consumption in MMBtulhr. Figure 5 compares the predicted...REDUCING BUILDING ENERGY COSTS USING OPTIMIZED OPERATION STRATEGIES FOR CONSTANT VOLUME AIR HANDLING SYSTEMS Mingsheng Liu, her Atha, Agarni Reddy Ed White David Claridge and Jeff Haberl Department of Physical Plant Texas A&M University...

  8. Improving Energy Efficiency in Pharmaceutical ManufacturingOperations -- Part I: Motors, Drives and Compressed Air Systems

    SciTech Connect (OSTI)

    Galitsky, Christina; Chang, Sheng-chien; Worrell, Ernst; Masanet,Eric

    2006-04-01T23:59:59.000Z

    In Part I of this two-part series, we focus on efficient use of motors, drives and pumps, both for process equipment and compressed air systems. Pharmaceutical manufacturing plants in the U.S. spend nearly $1 billion each year for the fuel and electricity they need to keep their facilities running (Figure 1, below). That total that can increase dramatically when fuel supplies tighten and oil prices rise, as they did last year. Improving energy efficiency should be a strategic goal for any plant manager or manufacturing professional working in the drug industry today. Not only can energy efficiency reduce overall manufacturing costs, it usually reduces environmental emissions, establishing a strong foundation for a corporate greenhouse-gas-management program. For most pharmaceutical manufacturing plants, Heating, Ventilation and Air Conditioning (HVAC) is typically the largest consumer of energy, as shown in Table 1 below. This two-part series will examine energy use within pharmaceutical facilities, summarize best practices and examine potential savings and return on investment. In this first article, we will focus on efficient use of motors, drives and pumps, both for process equipment and compressed air systems. Part 2, to be published in May, will focus on overall HVAC systems, building management and boilers.

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

    SciTech Connect (OSTI)

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

    2013-07-01T23:59:59.000Z

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

  10. Compressed Air Systems Optimized: What Do You Really Need and How to Get It at the Lowest Total Cost

    E-Print Network [OSTI]

    McAuley, J. G.; McAuley, J.

    2010-01-01T23:59:59.000Z

    it in the field. We discuss all the proven supply side optimization strategies with real examples and results. ISO air quality standards are discussed and how their interpretation impacts the cost of operating compressed air systems. We offer best practice methods...

  11. Revenue Maximization of Electricity Generation for a Wind Turbine Integrated with a Compressed Air Energy Storage System

    E-Print Network [OSTI]

    Li, Perry Y.

    controller is developed for a Compressed Air Energy Storage (CAES) system integrated with a wind turbine storage vessel. The storage vessel contains both liquid and compressed air at the same pressure. Energy significant reduction in generation costs. Among all different types of energy storage approaches, compressed

  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]

    Ledenyov, Oleg P

    2013-01-01T23:59:59.000Z

    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...

  13. Identification of rotordynamic forces in a flexible rotor system using magnetic bearings

    E-Print Network [OSTI]

    Zutavern, Zachary Scott

    2009-06-02T23:59:59.000Z

    Methods are presented for parameter identification of an annular gas seal on a flexiblerotor test rig. Dynamic loads are applied by magnetic bearings (MBs) that support the rotor. MB forces are measured using fiber-optic strain gauges...

  14. Optimize the Supply Air Temperature Reset Schedule for a Single-Duct VAV System

    E-Print Network [OSTI]

    Wei, G.; Claridge, D. E.; Liu, M.

    2000-01-01T23:59:59.000Z

    air temperature. However, resetting the supply air temperature not only impacts the cooling and heating energy consumption, but also the fan power consumption. If reset improperly, it may cause indoor air humidity problems or result in a fan power...

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

    SciTech Connect (OSTI)

    Fang, Guiyin; Hu, Hainan; Liu, Xu [Department of Physics, Nanjing University, Nanjing 210093 (China)

    2010-09-15T23:59:59.000Z

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

  16. 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

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

    E-Print Network [OSTI]

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

    2006-01-01T23:59:59.000Z

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

  18. Longevity of Duct Tape in Residential Air Distribution Systems: 1-D, 2-D, and 3-D Joints

    E-Print Network [OSTI]

    Abushakra, B.

    2003-01-01T23:59:59.000Z

    This paper addresses the effectiveness of using duct tape in sealing residential air distribution systems through two laboratory longevity tests. The first test involved the aging of common “core-to-collar joints” of flexible duct to sheet metal...

  19. Dal-Tile: Optimized Compressed Air System Improves Performance and Saves Energy at a Tile Manufacturing Plant

    SciTech Connect (OSTI)

    Not Available

    2005-08-01T23:59:59.000Z

    This DOE Industrial Technologies Program case study describes the significant energy and costs savings resulting from compressed air system improvements at Dal-Tile, a Texas tile manufacturing plant.

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

    E-Print Network [OSTI]

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

    2010-01-01T23:59:59.000Z

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

  1. Evaluation of air pollution abatement systems for multiple-hearth sewage sludge incinerators

    SciTech Connect (OSTI)

    Annamraju, G.; Gerstle, R.W.; Shah, Y.M.; Arora, M.L.

    1986-09-01T23:59:59.000Z

    Capital and annual costs were calculated for the application of six different air-pollution-control system options to municipal sewage-sludge incinerators that were using multiple-hearth furnaces. The systems involved three principal types of air-pollution equipment - wet scrubbers, fabric filters, and electrostatic precipitators - applied to three different plant sizes (plants incinerating 36, 72, and 300 tons of dry sludge per day in one, two, and eight multiple-hearth furnaces, respectively). The six options were: (1) venturi/tray scrubber with a 40-inch pressure drop, (2) fabric filter system operating at 500 deg and equipped with an upstream temperature control, (3) fabric filter system operating at 500 deg and equipped with a heat exchanger and a scrubber for SO/sub 2/ reduction, (4) electrostatic precipitator (ESP) with upstream limited temperature and humidity control, (5) same as Option 4 but with an additional downstream wet scrubber for SO/sub 2/ reduction, and (6) ESP with upstream temperature control and an SO/sub 2/ scrubber. Technical feasibility studies indicated that all three types of controls could achieve a total particulate removal efficiency of 99 percent. The venturi/tray scrubber option entailed the lowest capital cost, but annual operating costs were highest because of the high pressure drops and increased energy use.

  2. The effect of respiration heat of sorghum grain on the design of conditioned-air storage systems

    E-Print Network [OSTI]

    Haile, Danel Gene

    1967-01-01T23:59:59.000Z

    THE EFFECT OF RESPIRATION HEAT OF SORGHUM GRAIN ON THE DESIGN OF CONDITIONED-AIR STORAGE SYSTEMS A Thesis by DANEL GENE HAILE Submitted to the Graduate College of Texas AIM University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE January 1967 Major Subject: Agricultural Engineering THE EFFECT OF RESPIRATION HEAT OF SORGHUM GRAIN ON THE DESIGN OF CONDITIONED-AIR STORAGE SYSTEMS A Thesis by DANEL GENE HAILE Approved as to style and content by: C airman...

  3. Development of solar air heaters & thermal energy storage system for drying applications in food processing industries.

    E-Print Network [OSTI]

    Sreekumar, A

    2007-01-01T23:59:59.000Z

    ??In the present work, the author has designed and developed all types of solar air heaters called porous and nonporous collectors. The developed solar air… (more)

  4. E-Print Network 3.0 - air monitoring system Sample Search Results

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

    Trent University Environmental and Resource Studies Program Summary: Chemistry 2 Sep. 22 Air Pollution Overview The Atmosphere Air Quality Monitoring Networks 1 3 Sep. 29......

  5. E-Print Network 3.0 - air void system Sample Search Results

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

    served by varying air flow rates. Using visual observation and Figure 2 Test section for void fraction... - phase combinations of air and three different liquids (Table 7). The...

  6. ReaxFFMgH Reactive Force Field for Magnesium Hydride Systems Sam Cheung, Wei-Qiao Deng, Adri C. T. van Duin, and William A. Goddard III*

    E-Print Network [OSTI]

    van Duin, Adri

    ReaxFFMgH Reactive Force Field for Magnesium Hydride Systems Sam Cheung, Wei-Qiao Deng, Adri C. TFFMgH) for magnesium and magnesium hydride systems. The parameters for this force field were derived from fitting to quantum chemical (QM) data on magnesium clusters and on the equations of states for condensed phases

  7. Climate forcing Climate forcing

    E-Print Network [OSTI]

    MacKinnon, Jennifer

    parameters (solar distance factors) solar luminosity moon orbit volcanoes and other geothermal sources,000 years (large panels) and since 1750 (inset panels). Measurements are shown from ice cores (symbols forcings are shown on the right hand axes of the large panels. {Figure 6.4} !"#$#%&'(!&#)$&*$+#$,-.$/0

  8. Selection of Light Duty Truck Engine Air Systems Using Virtual Lab Tests

    SciTech Connect (OSTI)

    Zhang, Houshun

    2000-08-20T23:59:59.000Z

    An integrated development approach using seasoned engine technology methodologies, virtual lab parametric investigations, and selected hardware verification tests reflects today's state-of-the-art R&D trends. This presentation will outline such a strategy. The use of this ''Wired'' approach results in substantial reduction in the development cycle time and hardware iterations. An example showing the virtual lab application for a viable design of the air-exhaust-turbocharger system of a light duty truck engine for personal transportation will be presented.

  9. A prototype system for detecting the radio-frequency pulse associated with cosmic ray air showers

    E-Print Network [OSTI]

    Green, K; Suprun, D A; Wilkerson, J F; Green, Kevin; Rosner, Jonathan L.; Suprun, Denis A.

    2003-01-01T23:59:59.000Z

    The development of a system to detect the radio-frequency (RF) pulse associated with extensive air showers of cosmic rays is described. This work was performed at the CASA/MIA array in Utah, with the intention of designing equipment that can be used in conjunction with the Auger Giant Array. A small subset of data (less than 40 out of a total of 600 hours of running time), taken under low-noise conditions, permitted upper limits to be placed on the rate for pulses accompanying showers of energies around $10^{17}$ eV.

  10. A prototype system for detecting the radio-frequency pulse associated with cosmic ray air showers

    E-Print Network [OSTI]

    Kevin Green; Jonathan L. Rosner; Denis A. Suprun; J. F. Wilkerson

    2003-04-14T23:59:59.000Z

    The development of a system to detect the radio-frequency (RF) pulse associated with extensive air showers of cosmic rays is described. This work was performed at the CASA/MIA array in Utah, with the intention of designing equipment that can be used in conjunction with the Auger Giant Array. A small subset of data (less than 40 out of a total of 600 hours of running time), taken under low-noise conditions, permitted upper limits to be placed on the rate for pulses accompanying showers of energies around $10^{17}$ eV.

  11. Hvac systems as a tool in controlling indoor air quality: A literature review. Final report, May-August 1993

    SciTech Connect (OSTI)

    Samfield, M.M.

    1995-12-01T23:59:59.000Z

    The report gives results of a review of literature on the use of heating, ventilation, and air-conditioning (HVAC) systems to control indoor air quality (IAQ). One conclusion of the review is that HVAC systems very often contribute to the indoor air pollution because of (1) poor system maintenance, (2) overcrowding or the introduction of new pollution-generating sources with buildings, and (3) the location of outdoor air near ambient pollution sources. Another conclusion is that failure to trade off between energy conservation and employee productivity may result in increased IAQ problems. The report contents are based on literature survey covering the years 1988 through 1993, involving 60 references, 32 of which are cited in the report.

  12. 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

    to significant power consumption of vapour-compression systems, finding a new "green" refrigerant is another vehicles (HEVs), as it is the second most energy consuming system after the electric motor. Further, HVAC air conditioning systems used in the automotive industry are based on vapour-compression refrigeration

  13. Design and Control of High Temperature PEM Fuel Cell Systems using Methanol Reformers with Air or Liquid Heat Integration

    E-Print Network [OSTI]

    Berning, Torsten

    Design and Control of High Temperature PEM Fuel Cell Systems using Methanol Reformers with Air PEM fuel cell systems fuelled by steam reformed methanol. Various fuel cell system solutions exist, they mainly differ depending on the desired fuel used. High temperature PEM (HTPEM) fuel cells offer

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

    E-Print Network [OSTI]

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

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

  15. Performance of Supply Airflow Entrainment for Particles in an Underfloor Air Distribution System

    E-Print Network [OSTI]

    Li, C.; Li, N.

    2006-01-01T23:59:59.000Z

    air measurement campaign in Helsinki, Finland 1999?the effect of outdoor air pollution on indoor air. Atmospheric Environment [J].2001;35: 1465?77. [6] C.Y.H. Chao, M.P. Wan. Airflow and air temperature distribution in the occupied region...

  16. Measuring perceived air quality and intensity by a Sensor System, the European Project SysPAQ

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    as it is perceived by humans to be used as a control device for indoor air quality. KEYWORDS Perceived air quality;because of the unmatched sensitivity to many odorous indoor air pollutants. One of the reasons indoor air pollutants that trigger human sensory response. The SysPAQ project builds upon current

  17. Method and system for measuring gate valve clearances and seating force

    DOE Patents [OSTI]

    Casada, Donald A. (Knoxville, TN); Haynes, Howard D. (Knoxville, TN); Moyers, John C. (Oak Ridge, TN); Stewart, Brian K. (Burns, TN)

    1996-01-01T23:59:59.000Z

    Valve clearances and seating force, as well as other valve operational parameters, are determined by measuring valve stem rotation during opening and closing operations of a translatable gate valve. The magnitude of the stem rotation, and the relative difference between the stem rotation on opening and closing provides valuable data on the valve internals in a non-intrusive manner.

  18. Technical and economic assessment of fluidized bed augmented compressed air energy storage system. Volume III. Preconceptual design

    SciTech Connect (OSTI)

    Giramonti, A.J.; Lessard, R.D.; Merrick, D.; Hobson, M.J.

    1981-09-01T23:59:59.000Z

    A technical and economic assessment of fluidized bed combustion augmented compressed air energy storage systems is presented. The results of this assessment effort are presented in three volumes. Volume III - Preconceptual Design contains the system analysis which led to the identification of a preferred component configuration for a fluidized bed combustion augmented compressed air energy storage system, the results of the effort which transformed the preferred configuration into preconceptual power plant design, and an introductory evaluation of the performance of the power plant system during part-load operation and while load following.

  19. Small Break Air Ingress Experiment

    SciTech Connect (OSTI)

    Chang Oh; Eung Soo Kim

    2011-09-01T23:59:59.000Z

    The small break air-ingress experiment, described in this report, is designed to investigate air-ingress phenomena postulated to occur in pipes in a very high temperature gas-cooled reactor (VHTRs). During this experiment, air-ingress rates were measured for various flow and break conditions through small holes drilled into a pipe of the experimental apparatus. The holes were drilled at right angles to the pipe wall such that a direction vector drawn from the pipe centerline to the center of each hole was at right angles with respect to the pipe centerline. Thus the orientation of each hole was obtained by measuring the included angle between the direction vector of each hole with respect to a reference line anchored on the pipe centerline and pointing in the direction of the gravitational force. Using this reference system, the influence of several important parameters on the air ingress flow rate were measured including break orientation, break size, and flow velocity . The approach used to study the influence of these parameters on air ingress is based on measuring the changes in oxygen concentrations at various locations in the helium flow circulation system as a function of time using oxygen sensors (or detectors) to estimate the air-ingress rates through the holes. The test-section is constructed of a stainless steel pipe which had small holes drilled at the desired locations.

  20. Impacts of Static Pressure Reset on VAV System Air Leakage, Fan Power and Thermal Energy - Part I: Theoretical Model and Simulation

    E-Print Network [OSTI]

    Liu, M.; Feng, J.; Wang, Z.; Wu, L.; Zheng, K.; Pang, W.

    2007-01-01T23:59:59.000Z

    As for a variable air volume (VAV) system, the air duct static pressure is a typical control variable maintained by modulating supply fan speed. The static pressure equals to the summation of the duct pressure loss downstream of the sensor...

  1. Monitoring System Used to Optimize Compressed Air System Efficiency, Cut Costs

    E-Print Network [OSTI]

    Holmes, W. A.

    In 1994, Thomson Consumer Electronics (RCA), an international manufacturer of electronics equipment purchased a UtillTRACK® Monitoring System for a plant in Indianapolis, Indiana. The system monitored gas and electric meters, substations, main...

  2. Impacts of Static Pressure Reset on VAV System Air Leakage, Fan Power and Thermal Energy - Part 2: Case Demonstration for a Typical Climate System

    E-Print Network [OSTI]

    Liu, M.; Zheng, K.; Wu, L.; Wang, Z.; Johnson, C.

    2007-01-01T23:59:59.000Z

    . In this part, a simulated air handling unit (AHU) system in Omaha NE is used to demonstrate the energy savings performance in one typical climate year. This AHU system has a static pressure reset system and two constant static pressure systems, one having...

  3. Technical and economic assessment of fluidized-bed-augmented compressed-air energy-storage system: system load following capability

    SciTech Connect (OSTI)

    Lessard, R.D.; Blecher, W.A.; Merrick, D.

    1981-09-01T23:59:59.000Z

    The load-following capability of fluidized bed combustion-augmented compressed air energy storage systems was evaluated. The results are presented in two parts. The first part is an Executive Summary which provides a concise overview of all major elements of the study including the conclusions, and, second, a detailed technical report describing the part-load and load following capability of both the pressurized fluid bed combustor and the entire pressurized fluid bed combustor/compressed air energy storage system. The specific tasks in this investigation were to: define the steady-state, part-load operation of the CAES open-bed PFBC; estimate the steady-state, part-load performance of the PFBC/CAES system and evaluate any possible operational constraints; simulate the performance of the PFBC/CAES system during transient operation and assess the load following capability of the system; and establish a start-up procedure for the open-bed PFBC and evaluate the impact of this procedure. The conclusions are encouraging and indicate that the open-bed PFBC/CAES power plant should provide good part-load and transient performance, and should have no major equipment-related constraints, specifically, no major problems associated with the performance or design of either the open-end PFBC or the PFBC/CAES power plant in steady-state, part-load operation are envisioned. The open-bed PFBC/CAES power plant would have a load following capability which would be responsive to electric utility requirements for a peak-load power plant. The open-bed PFBC could be brought to full operating conditions within 15 min after routine shutdown, by employing a hot-start mode of operation. The PFBC/CAES system would be capable of rapid changes in output power (12% of design load per minute) over a wide output power range (25% to 100% of design output). (LCL)

  4. 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

    2013-06-14T23:59:59.000Z

    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.

  5. Magnetic force driven six degree-of-freedom active vibration isolation system using a phase compensated velocity sensor

    SciTech Connect (OSTI)

    Kim, Yongdae; Park, Kyihwan [Department of Mechatronics, Gwangju Institute of Science and Technology, 1 Oryong-dong, Buk-gu, Gwangju 500-712 (Korea, Republic of); Kim, Sangyoo [Compressor Group, Digital Appliance Laboratory LG Electronics, Gaeumjeong-Dong, Changwon, Gyeongnam 641-711 (Korea, Republic of)

    2009-04-15T23:59:59.000Z

    A six-axis active vibration isolation system (AVIS) is developed using voice coil actuators. Point contact configuration is employed to have an easy assembly of eight voice coil actuators to an upper and a base plates. The velocity sensor, using an electromagnetic principle that is commonly used in the vibration control, is investigated since its phase lead characteristic causes an instability problem for a low frequency vibration. The performances of the AVIS are investigated in the frequency domain and finally validated by comparing with the passive isolation system using the atomic force microscope images.

  6. Measure Guideline: Implementing a Plenum Truss for a Compact Air Distribution System

    SciTech Connect (OSTI)

    Burdick, A.

    2013-10-01T23:59:59.000Z

    This Measure Guideline presents the steps to implement a compact duct system inside an attic bulkhead (plenum truss) of a one-story, slab-on-grade (SOG) home. In a compact duct design, ductwork runs are reduced in length to yield a smaller and more compact duct system. Less energy will be lost through ductwork if the ducts are contained within the thermal enclosure of the house. These measures are intended for the production builder working to meet the 2012 International Energy Conservation Code (IECC) requirements and keep the ductwork within the thermal enclosure of the house. This measure of bringing the heating, ventilation and air conditioning (HVAC) equipment and ductwork within the thermal enclosure of the house is appropriate for the builder wishing to avoid cathedralizing the insulation in the attic space (i.e., locating it at the underside of the roof deck rather than along the attic floor) or adding dropped soffits.

  7. Air/fuel supply system for use in a gas turbine engine

    SciTech Connect (OSTI)

    Fox, Timothy A; Schilp, Reinhard; Gambacorta, Domenico

    2014-06-17T23:59:59.000Z

    A fuel injector for use in a gas turbine engine combustor assembly. The fuel injector includes a main body and a fuel supply structure. The main body has an inlet end and an outlet end and defines a longitudinal axis extending between the outlet and inlet ends. The main body comprises a plurality of air/fuel passages extending therethrough, each air/fuel passage including an inlet that receives air from a source of air and an outlet. The fuel supply structure communicates with and supplies fuel to the air/fuel passages for providing an air/fuel mixture within each air/fuel passage. The air/fuel mixtures exit the main body through respective air/fuel passage outlets.

  8. Nonlinear dynamics of a self-excited thermoacoustic system subjected to acoustic forcing

    E-Print Network [OSTI]

    Balusamy, Saravanan; Li, Larry K.B.; Han, Zhiyi; Juniper, Matthew P.; Hochgreb, Simone

    2014-06-25T23:59:59.000Z

    . Introduction Despite decades of research, thermoacoustic instability remains one of the biggest challenges facing manufacturers of gas turbines. In these devices, the acoustics is usually linear,1 but the flame’s heat-release response to incident perturba... of magnitude higher than that in [6–8] but is an order of magnitude lower than that in actual gas turbines.3. Results and discussion 3.1. Self-excited instability Exploratory tests performed without forcing reveal several (unforced) operating conditions capable...

  9. Development of a high efficiency compressor/expander for an air cycle air conditioning system. Final report

    SciTech Connect (OSTI)

    Summers, R.L.; Smolinski, R.E.

    1982-11-15T23:59:59.000Z

    This document presents the methods and procedures used and the results obtained in the design, fabrication, and testing of a rotary vane type compressor operated on air cycle thermodynamics. The history and results of the testing of a similar expander are summarized and the full report of that work is referenced. The machine design used was based on one patented by Ecton Corporation. The goal of the reported effort was to demonstrate the attainable efficiencies of these machines. Appropriate test rigs were assembled and the machines were tested at various operating conditions. The compressor testing did not achieve the full design speed because of time constraints but important data was obtained at 87% speed (3000 rpm). The maximum measured total efficiencies were 78% for the expander and 71% for the compressor. Various design improvements which may yield improved performance were identified and reported.

  10. Characterization and optimization of a Hot Air Solder-Leveling System

    SciTech Connect (OSTI)

    Penniston, R.R. Jr.; Stockdale, D.A.

    1993-03-01T23:59:59.000Z

    The characterization and optimization of a new Hot Air Sokkr-Leveling (HASL) System in the Printed Wiring Board Fabrication Area was initiated to reduce the variability and defects in printed wiring board solder coatings. This body of work continues to provide information on the mechanics of solder coating, and allows us to predict the required process adjustments based on board type and geometry. The previous HASL system contained several processes (flux, preheat, solder-coat, cooldown) within one piece of equipment. The new system physically separates these processes using in-line conveyors. Parameters affecting these processes were brainstormed and evaluated using the MaHo Perez-Wilson methodology (MPCpS). The critical parameters were identified and segregated according to individual process. Each process was characterized for materials used, machine settings, and their effect (potential and actual) on product. Due to the wide-ranging affect of the preheat and solder-leveling machine settings, the first decision made was to restrict the characterization to duplication of the coating obtained from the previous system. Adoption of the parameters used on the previous system allowed a reduction in the number of evaluations required to establish initial machine settings (solder pot dwell times, solder temperature, preheat temperature, etc.). Activities in-work include a formal statistical analysis of the solder-leveling capabilities, and completion of Optimization activities.

  11. A Study of Pressure Losses in Residential Air Distribution Systems Bass Abushakra Iain S. Walker Max H. Sherman

    E-Print Network [OSTI]

    . The experimental tests conformed to ASHRAE Standard 120P ­ Methods of Testing to Determine Flow Resistance of HVAC on the power consumption and the overall performance of the HVAC system. To satisfy the ARI 210 in the air-distribution system is critical. Proctor and Parker (2000) noted that the measured external static

  12. Production cost and air emissions impacts of coal cycling in power systems with large-scale wind penetration

    E-Print Network [OSTI]

    Jaramillo, Paulina

    Production cost and air emissions impacts of coal cycling in power systems with large-scale wind emissions impacts of coal cycling in power systems with large-scale wind penetration David Luke Oates, and SO2 emissions as well as for the profitability of coal plants, as calculated by our dispatch model

  13. Air Leakage of Furnaces and Air Handlers Iain S. Walker, Mike Lubliner, Darryl Dickerhoff,

    E-Print Network [OSTI]

    Air Leakage of Furnaces and Air Handlers of California. #12;1 Air Leakage of Furnaces and Air Handlers Iain S. Walker, LBNL Mike Lubliner, Washington been made in reducing air leakage in residential and to a lesser extent small commercial forced air

  14. Eliminating air heater plugging and corrosion caused by SCR/SNCR systems for NOx control on coal-fired boilers

    SciTech Connect (OSTI)

    Guffre, J. [Paragon Airheater Technologies (United States)

    2007-10-15T23:59:59.000Z

    In a typical coal-fired power plant the rotary regenerative air heater is responsible for 5-10% of the boiler's total efficiency. The three biggest threats to air heater performance deterioration are corrosion of the heat exchange surfaces, plugging, and air heater leakage through the seals. The article concentrates on the vastly increased level of corrosion and plugging issues associated with installing selective catalytic reduction (SCR) and selective non-catalytic reduction (SNCR) systems for controlling nitrogen oxide emissions. Some injected ammonia in the SCR process reacts with SO{sub 2} to form ammonium sulphate and bisulphate (ABS) which is deposited on the air heater element surfaces. This can be overcome by applying coatings, using corrosion-resistant steels, reconfiguring the air heaters to a two layer design, improving air heater blowers, improving technologies for removing ammonia 'slip' before it enters the air heater, and using new catalysts that reduce the oxidation of SO{sub 2} to SO{sub 3}. 4 figs.

  15. A study of fractionating inlet systems for the dichotomous air sampler

    E-Print Network [OSTI]

    Ripps, Gerald Joseph

    1979-01-01T23:59:59.000Z

    of Aerosols in Ambient Air", Swedish Water and Air Pollu- tion Research Labs. , S-402 24, Gothenburg, Sweden, (1975). (8) Steen, B. , "The Influence of Different Parameters on the Sampling Efficiency of Some Commonly Used Devices for Measuring Particle... Concentrations in Ambient Air", Ph. D. Thesis, Chalmers Institute of Technology, Gothenburg, Sweden, (1975). (9) Steen, B. , and Andreasson, K. , "Comparative Measure- ments of Particle Concentrations in Ambient Air Made at a Background Station...

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

    E-Print Network [OSTI]

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

    2004-01-01T23:59:59.000Z

    consumptions. The cooling capacities for WC and AC systems were 373 and 278 tons-of- refrigeration, respectively. It was found that for the same cooling production, the peak power demand and the daily energy consumption of the WC system were 45 and 32% less...

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

    SciTech Connect (OSTI)

    Wetter, Michael

    2009-06-17T23:59:59.000Z

    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.

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

    E-Print Network [OSTI]

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

    2006-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Fan, Y.; Li, D.

    2006-01-01T23:59:59.000Z

    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...

  20. Self Adaptive Air Turbine for Wave Energy Conversion Using Shutter Valve and OWC Heoght Control System

    SciTech Connect (OSTI)

    Di Bella, Francis A

    2014-09-29T23:59:59.000Z

    An oscillating water column (OWC) is one of the most technically viable options for converting wave energy into useful electric power. The OWC system uses the wave energy to “push or pull” air through a high-speed turbine, as illustrated in Figure 1. The turbine is typically a bi-directional turbine, such as a Wells turbine or an advanced Dennis-Auld turbine, as developed by Oceanlinx Ltd. (Oceanlinx), a major developer of OWC systems and a major collaborator with Concepts NREC (CN) in Phase II of this STTR effort. Prior to awarding the STTR to CN, work was underway by CN and Oceanlinx to produce a mechanical linkage mechanism that can be cost-effectively manufactured, and can articulate turbine blades to improve wave energy capture. The articulation is controlled by monitoring the chamber pressure. Funding has been made available from the U.S. Department of Energy (DOE) to CN (DOE DE-FG-08GO18171) to co-share the development of a blade articulation mechanism for the purpose of increasing energy recovery. However, articulating the blades is only one of the many effective design improvements that can be made to the composite subsystems that constitute the turbine generator system.