National Library of Energy BETA

Sample records for building compressed air

  1. Compressed Air

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

    Lighting Compressed Air ESUE Motors Federal Agriculture Compressed Air Compressed Air Roadmap The Bonneville Power Administration created the roadmap to help utilities find energy...

  2. Minimize Compressed Air Leaks

    Broader source: Energy.gov [DOE]

    This tip sheet outlines a strategy for compressed air leak detection and provides a formula for cost savings calculations.

  3. Compressed Air Storage Strategies | Department of Energy

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

    Storage Strategies Compressed Air Storage Strategies This tip sheet briefly discusses compressed air storage strategies. COMPRESSED AIR TIP SHEET 9 PDF icon Compressed Air Storage ...

  4. 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...

  5. Analyzing Your Compressed Air System

    Office of Energy Efficiency and Renewable Energy (EERE)

    This tip sheet outlines the process to analyze industrial compressed air systems and ensure proper system configuration.

  6. Compressed Air System Control Strategies

    Office of Energy Efficiency and Renewable Energy (EERE)

    This tip sheet briefly discusses compressed air system control strategies as a means to improving and maintaining system performance.

  7. Determining the Right Air Quality for Your Compressed Air System |

    Office of Environmental Management (EM)

    Department of Energy Determining the Right Air Quality for Your Compressed Air System Determining the Right Air Quality for Your Compressed Air System This tip sheet outlines the main factors for determining the right air quality for compressed air systems. COMPRESSED AIR TIP SHEET #5 PDF icon Determining the Right Air Quality for Your Compressed Air System (August 2004) More Documents & Publications Effect of Intake on Compressor Performance Improving Compressed Air System Performance:

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

    SciTech Connect (OSTI)

    2004-08-01

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

  9. Compressed air energy storage system

    DOE Patents [OSTI]

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

    1981-01-01

    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.

  10. Compressed Air Systems

    Broader source: Energy.gov [DOE]

    There are incentives for variable frequency drive screw compressors (10-40 HP), air receivers/tanks for load/no-load compressors, cycling refrigerated dryers (up to 200 CFM capacity), no-loss...

  11. Training: Compressed Air Systems | Department of Energy

    Energy Savers [EERE]

    Training: Compressed Air Systems Training: Compressed Air Systems April 16, 2014 - 6:32pm Addthis Learn about the diverse training sessions offered. The courses are taught by highly qualified instructors who have met rigorous standards. View additional compressed air system resources. Compressed Air Systems Tools Training - 2-hour webcast Availability: Online webcast A two-hour webcast on the use of the Compressed Air Challenge (CAC®) Toolkit and the AIRMaster+ software tool is available that

  12. Chapter 22: Compressed Air Evaluation Protocol

    SciTech Connect (OSTI)

    Benton, N.

    2014-11-01

    Compressed-air systems are used widely throughout industry for many operations, including pneumatic tools, packaging and automation equipment, conveyors, and other industrial process operations. Compressed-air systems are defined as a group of subsystems composed of air compressors, air treatment equipment, controls, piping, pneumatic tools, pneumatically powered machinery, and process applications using compressed air. A compressed-air system has three primary functional subsystems: supply, distribution, and demand. Air compressors are the primary energy consumers in a compressed-air system and are the primary focus of this protocol. The two compressed-air energy efficiency measures specifically addressed in this protocol are: high-efficiency/variable speed drive (VSD) compressor replacing modulating compressor; compressed-air leak survey and repairs. This protocol provides direction on how to reliably verify savings from these two measures using a consistent approach for each.

  13. 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...

  14. Minimize Compressed Air Leaks; Industrial Technologies Program...

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

    Minimize Compressed Air Leaks Leaks are a signifcant source of wasted energy in a compressed air system, often wasting as much as 20%-30% of the compressor's output. ...

  15. Preventive Maintenance Strategies for Compressed Air Systems

    Broader source: Energy.gov [DOE]

    This tip sheet discusses preventive maintenance strategies for compressed air systems to avoid high equipment repair and replacement costs.

  16. Compressed Air Systems | Department of Energy

    Office of Environmental Management (EM)

    Compressed Air Systems Compressed Air Systems Applying best energy management practices and purchasing energy-efficient equipment can lead to significant savings in compressed air systems. Use the software tools, training, and publications listed below to improve performance and save energy. Compressed Air Tools Tools to Assess Your Energy System AIRMaster+ Tool AIRMaster+ LogTool Qualified Specialists Qualified Specialists have passed a rigorous competency examination on a specific industrial

  17. Eliminate Inappropriate Uses of Compressed Air | Department of...

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

    inappropriate uses of compressed air and suggests alternatives. COMPRESSED AIR TIP SHEET 2 Eliminate Inappropriate Uses of Compressed Air (August 2004) More Documents &...

  18. Fact Sheet: Isothermal Compressed Air Energy Storage (August...

    Energy Savers [EERE]

    Isothermal Compressed Air Energy Storage (August 2013) Fact Sheet: Isothermal Compressed Air Energy Storage (August 2013) SustainX will demonstrate an isothermal compressed air ...

  19. Improving Compressed Air System Performance Third Edition | Department of

    Energy Savers [EERE]

    Energy Improving Compressed Air System Performance Third Edition Improving Compressed Air System Performance Third Edition PDF icon Improving Compressed Air Sourcebook version 3.pdf More Documents & Publications Improving Compressed Air System Performance: A Sourcebook for Industry Determining the Right Air Quality for Your Compressed Air System Effect of Intake on Compressor Performance

  20. Pre-In-Plant Training Webinar (Compressed Air) | Department of Energy

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

    Compressed Air) Pre-In-Plant Training Webinar (Compressed Air) Description This pre-In-Plant Training webinar for the Better Plants Program covers the basics of finding energy savings in Compressed Air systems and introduces the AIRMaster+ software tool. Download the presentation slides. Text Version Better Buildings, Better Plants Pre-In-Plant Training: Compressed Air Assessment Basics - March 3, 2015 - Frank Moskowitz (Draw Professional Services) >> Paul Lemar Ok, so hello everyone! My

  1. Compressed Air Storage Strategies; Industrial Technologies Program (ITP) Compressed Air Tip Sheet #9 (Fact Sheet)

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

    9 * August 2004 Industrial Technologies Program Suggested Actions * Review the plant's compressed air demand patterns to determine whether storage would be benefcial. * Examine the compressed air applications to determine if they can be supplied by a separate, smaller compressor with storage to reduce the system demand fuctuations caused by their intermittent demand. References From Compressed Air Challenge ® (CAC): The Compressed Air System Best Practices Manual, Guidelines for Selecting a

  2. Seneca Compressed Air Energy Storage (CAES) Project

    SciTech Connect (OSTI)

    2012-11-30

    This document provides specifications for the process air compressor for a compressed air storage project, requests a budgetary quote, and provides supporting information, including compressor data, site specific data, water analysis, and Seneca CAES value drivers.

  3. Determine the Cost of Compressed Air for Your Plant | Department...

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

    a method for determining the cost of compressed air at industrial plants. COMPRESSED AIR TIP SHEET 1 Determine the Cost of Compressed Air for Your Plant (August 2004) More...

  4. Guidelines for Selecting a Compressed Air System Service Provider

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

    SELECTING A COMPRESSED AIR SYSTEM SERVICE PROVIDER Compressed air is one of the most important utility requirements of the typical industrial manufacturer. Compressed air is used throughout many processes such as pneumatic tools, pneumatic controls, compressed air operated cylinders for machine actuation, product cleansing, and blow-offs. Without a consistent supply of quality compressed air, a manufacturing process can stop functioning. The Compressed Air Challenge ® (CAC) is a national

  5. Evaluation of the Compressed Air Challenge Training Program:...

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

    Report This is the final report on an evaluation of the Compressed Air Challenge (CAC) training program, which was designed to provide plant personnel and compressed air system...

  6. Evaluation of the Compressed Air Challenge Training Program:...

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

    executive summary of a report on an evaluation of the Compressed Air Challenge (CAC) training program, which was designed to provide plant personnel and compressed air system...

  7. Commercial Compressed Air Systems Program

    Broader source: Energy.gov [DOE]

    There are incentives for variable frequency drive screw compressors (10-40 HP), air receivers/tanks for load/no-load screw and vane compressors, cycling refrigerated thermal mass dryers (up to 30...

  8. Improving Compressed Air System Performance: A Sourcebook for Industry |

    Office of Environmental Management (EM)

    Department of Energy Compressed Air System Performance: A Sourcebook for Industry Improving Compressed Air System Performance: A Sourcebook for Industry This sourcebook is designed to provide compressed air system users with a reference that outlines opportunities for system performance improvements. It is not intended to be a comprehensive technical text on improving compressed air systems, but rather a document that makes compressed air system users aware of the performance improvement

  9. Internal combustion engine with compound air compression

    SciTech Connect (OSTI)

    Paul, M.A.; Paul, A.

    1991-10-15

    This patent describes an internal combustion engine in combination with a compound air compression system. It comprises: a reciprocator with at least one cylinder, at least one piston reciprocal in the cylinder and a combustion chamber formed in substantial part by portions of the piston and cylinder, the reciprocator having a drive shaft; a rotary compressor having a drive shaft mechanically coupled to the drive shaft of the reciprocator, the rotary compressor having a Wankel-type, three-lobe, epitrochiodal configuration sides having a conduit conjected to the reciprocator for supplying compressed air to the reciprocator; a turbocharged with a gas turbine and a turbocompressor, the turbocompressor having an air conduit connected to the expander side of the rotary compressor; and a bypass conduit with a valve means connecting the turbocharger to the reciprocator for supplying compressed air directly to the reciprocator wherein the drive shaft of the reciprocator and the drive shaft of the compressor have connecting means for transmitting mechanical energy to the reciprocator at mid to high operating speeds of the engine when the turbocharge supplies compressed air to the rotary compressor and, at least in part, drives the rotary compressor.

  10. Assessment of the Market for Compressed Air Efficiency Services |

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

    Department of Energy Assessment of the Market for Compressed Air Efficiency Services Assessment of the Market for Compressed Air Efficiency Services The objective of this report is to provide a comprehensive and balanced view of the market for engineering and consulting services to improve the energy efficiency of plant compressed air systems. The report is intended for use by industrial energy efficiency program operators in developing strategies to encourage the growth of compressed air

  11. Pre-In-Plant Training Webinar (Compressed Air): Presentation Slides |

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

    Department of Energy Pre-In-Plant Training Webinar (Compressed Air): Presentation Slides Pre-In-Plant Training Webinar (Compressed Air): Presentation Slides The presentation slides from a pre-In-Plant Training webinar hosted by Better Plants on March 3, 2015. The webinar covered the basics of finding energy savings in Compressed Air systems and introduces the AIRMaster+ software tool. PDF icon Pre-In-Plant Training Webinar (Compressed Air) More Documents & Publications AIRMaster+ Tool

  12. IMPROVING COMPRESSED AIR SYSTEM PERFORMANCE: A SOURCEBOOK FOR INDUSTRY

    Office of Environmental Management (EM)

    IMPROVING COMPRESSED AIR SYSTEM PERFORMANCE: A SOURCEBOOK FOR INDUSTRY Improving Compressed Air System Performance A Sourcebook for Industry Third Edition U.S. DEPARTMENT OF ENERGY Energy Efficiency & Renewable Energy ADVANCED MANUFACTURING OFFICE IMPROVING COMPRESSED AIR SYSTEM PERFORMANCE: A SOURCEBOOK FOR INDUSTRY ACKNOWLEDGEMENTS Improving Compressed Air System Performance: A Sourcebook for Industry is a cooperative effort of the U.S. Department of Energy's Office of Energy Efficiency

  13. Compressed Air Energy Storage (CAES) | Open Energy Information

    Open Energy Info (EERE)

    and stored in a reservoir, then when electricity is needed, air is heated with natural gas and expanded through a turbine. Adiabatic Adiabatic compressed air energy storage...

  14. Fact Sheet: Isothermal Compressed Air Energy Storage (August 2013) |

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

    Department of Energy Isothermal Compressed Air Energy Storage (August 2013) Fact Sheet: Isothermal Compressed Air Energy Storage (August 2013) SustainX will demonstrate an isothermal compressed air energy storage (ICAES) system. The system captures the heat from compression in water and stores the captured heat until it is needed again for expansion. Storing the captured heat eliminates the need for a gas combustion turbine and improves efficiency. For more information about how OE performs

  15. MHK Technologies/Ocean Powered Compressed Air Stations | Open...

    Open Energy Info (EERE)

    Description The Ocean Powered Compressed Air Station is a point absorber that uses an air pump to force air to a landbased generator The device only needs 4m water depth and...

  16. University of Arizona Compressed Air Energy Storage

    SciTech Connect (OSTI)

    Simmons, Joseph; Muralidharan, Krishna

    2012-12-31

    Boiled down to its essentials, the grants purpose was to develop and demonstrate the viability of compressed air energy storage (CAES) for use in renewable energy development. While everyone agrees that energy storage is the key component to enable widespread adoption of renewable energy sources, the development of a viable scalable technology has been missing. The Department of Energy has focused on expanded battery research and improved forecasting, and the utilities have deployed renewable energy resources only to the extent of satisfying Renewable Portfolio Standards. The lack of dispatchability of solar and wind-based electricity generation has drastically increased the cost of operation with these components. It is now clear that energy storage coupled with accurate solar and wind forecasting make up the only combination that can succeed in dispatchable renewable energy resources. Conventional batteries scale linearly in size, so the price becomes a barrier for large systems. Flow batteries scale sub-linearly and promise to be useful if their performance can be shown to provide sufficient support for solar and wind-base electricity generation resources. Compressed air energy storage provides the most desirable answer in terms of scalability and performance in all areas except efficiency. With the support of the DOE, Tucson Electric Power and Science Foundation Arizona, the Arizona Research Institute for Solar Energy (AzRISE) at the University of Arizona has had the opportunity to investigate CAES as a potential energy storage resource.

  17. COLLOQUIUM: Compressed Air Energy Storage: The Bridge to Our...

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

    April 30, 2014, 4:00pm to 5:30pm Colloquia MBG Auditorium COLLOQUIUM: Compressed Air Energy Storage: The Bridge to Our Renewable Energy Future Mr. Al Cavallo Consultant Compressed ...

  18. Improving Compressed Air System Performance: A Sourcebook for Industry

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

    Energy Efficiency and Renewable Energy One in a series of industrial energy efficiency sourcebooks a sourcebook for industry Bringing you a prosperous future where energy is clean, abundant, reliable, and affordable Improving Compressed Air System Performance Acknowledgments Improving Compressed Air System Performance: A Sourcebook for Industry is a cooperative effort of the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy (EERE) BestPractices and the Compressed Air

  19. Evaluation of the Compressed Air Challenge Training Program: Final Report

    Broader source: Energy.gov [DOE]

    This is the final report on an evaluation of the Compressed Air Challenge (CAC) training program, which was designed to provide plant personnel and compressed air system vendors with knowledge and tools required to effect improvements to the energy efficiency and overall performance of plant compressed air systems. The evaluation is based on three main research tasks: analysis of the CAC registration database, interviews with 100 end-user personnel who attended the CAC training, and interviews with 100 compressed air system vendors and consulting engineers who attended the training sessions.

  20. IMPROVING COMPRESSED AIR SYSTEM PERFORMANCE: A SOURCEBOOK FOR...

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

    ... Under the unregulated environment, utilities may offer anything from assistance with audits to complete outsourcing of a customer's compressed air operations. The Market for ...

  1. ASE/CAGI Meeting about Compressors and Compressed Air System...

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

    Energy to explore and discuss a consensus approach to advancing energy efficiency of compressed air systems within the context of the DOE's potential rulemaking on compressors. ...

  2. Guidelines for Selecting a Compressed Air System Service Provider

    Broader source: Energy.gov [DOE]

    This publication is meant to help industrial compressed air users become informed consumers by discussing what to look for when selecting service providers.

  3. Evaluation of the Compressed Air Challenge Training Program: Executive Summary

    Broader source: Energy.gov [DOE]

    This is the executive summary of a report on an evaluation of the Compressed Air Challenge (CAC) training program, which was designed to provide plant personnel and compressed air system vendors with knowledge and tools required to effect improvements to the energy efficiency and overall performance of plant compressed air systems. The evaluation is based on three main research tasks: analysis of the CAC registration database, interviews with 100 end-user personnel who attended the CAC training, and interviews with 100 compressed air system vendors and consulting engineers who attended the training sessions.

  4. SustainX Inc Isothermal Compressed Air Energy Storage Project...

    Office of Environmental Management (EM)

    SustainX Inc Isothermal Compressed Air Energy Storage Project Description SustainX is developing and demonstrating a modular, market-ready energy storage system that uses ...

  5. Evaluation of the Compressed Air Challenge(R) Training Program...

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

    ... . . . . . . . . . . . 3-12 3.3.3 Post-Training Marketing Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14 3.3.4 Changes in Demand for Compressed Air ...

  6. Evaluation of the Compressed Air Challenge Training Program

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

    ... . . . . . . . . . . . 3-12 3.3.3 Post-Training Marketing Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14 3.3.4 Changes in Demand for Compressed Air ...

  7. Seneca Compressed Air Energy Storage (CAES) Project

    SciTech Connect (OSTI)

    2012-11-30

    This report provides a review and an analysis of potential environmental justice areas that could be affected by the New York State Electric & Gas (NYSEG) compress air energy storage (CAES) project and identifies existing environmental burden conditions on the area and evaluates additional burden of any significant adverse environmental impact. The review assesses the socioeconomic and demographic conditions of the area surrounding the proposed CAES facility in Schuyler County, New York. Schuyler County is one of 62 counties in New York. Schuyler County’s 2010 population of 18,343 makes it one of the least populated counties in the State (U.S. Census Bureau, 2010). This report was prepared for WorleyParsons by ERM and describes the study area investigated, methods and criteria used to evaluate this area, and the findings and conclusions from the evaluation.

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

    SciTech Connect (OSTI)

    2010-09-13

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

  9. Compressed Air System Control Strategies; Industrial Technologies Program (ITP) Compressed Air Tip Sheet #7 (Fact Sheet)

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

    7 * August 2004 Industrial Technologies Program Suggested Actions * Understand your system require- ments by developing a pressure and a demand profle before investing in additional controls. * Identify end uses that are affected by pressure problems. * Check existing equipment to ensure that it is in good operating condition. * Eliminate inappropriate uses, fx major leaks, and implement a leak management program. * Once these actions have been taken, work with a compressed air special- ist to

  10. Air Barriers for Residential and Commercial Buildings

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

    Air Barriers for Residential and Commercial Buildings Diana Hun, PhD Oak Ridge National Laboratory dehun@ornl.gov 865-574-5139 April 4, 2013 BTO Program Peer Review 2 | Building Technologies Office eere.energy.gov Problem Statement & Project Focus - Air leakage is a significant contributor to HVAC loads - ~50% in residential buildings (Sherman and Matson 1997) - ~33% of heating loads in office buildings (Emmerich et al. 2005) - Airtightness of buildings listed in BTO prioritization tool -

  11. Seneca Compressed Air Energy Storage (CAES) Project

    SciTech Connect (OSTI)

    2012-11-30

    Compressed Air Energy Storage (CAES) is a hybrid energy storage and generation concept that has many potential benefits especially in a location with increasing percentages of intermittent wind energy generation. The objectives of the NYSEG Seneca CAES Project included: for Phase 1, development of a Front End Engineering Design for a 130MW to 210 MW utility-owned facility including capital costs; project financials based on the engineering design and forecasts of energy market revenues; design of the salt cavern to be used for air storage; draft environmental permit filings; and draft NYISO interconnection filing; for Phase 2, objectives included plant construction with a target in-service date of mid-2016; and for Phase 3, objectives included commercial demonstration, testing, and two-years of performance reporting. This Final Report is presented now at the end of Phase 1 because NYSEG has concluded that the economics of the project are not favorable for development in the current economic environment in New York State. The proposed site is located in NYSEG’s service territory in the Town of Reading, New York, at the southern end of Seneca Lake, in New York State’s Finger Lakes region. The landowner of the proposed site is Inergy, a company that owns the salt solution mining facility at this property. Inergy would have developed a new air storage cavern facility to be designed for NYSEG specifically for the Seneca CAES project. A large volume, natural gas storage facility owned and operated by Inergy is also located near this site and would have provided a source of high pressure pipeline quality natural gas for use in the CAES plant. The site has an electrical take-away capability of 210 MW via two NYSEG 115 kV circuits located approximately one half mile from the plant site. Cooling tower make-up water would have been supplied from Seneca Lake. NYSEG’s engineering consultant WorleyParsons Group thoroughly evaluated three CAES designs and concluded that any of the designs would perform acceptably. Their general scope of work included development of detailed project construction schedules, capital cost and cash flow estimates for both CAES cycles, and development of detailed operational data, including fuel and compression energy requirements, to support dispatch modeling for the CAES cycles. The Dispatch Modeling Consultant selected for this project was Customized Energy Solutions (CES). Their general scope of work included development of wholesale electric and gas market price forecasts and development of a dispatch model specific to CAES technologies. Parsons Brinkerhoff Energy Storage Services (PBESS) was retained to develop an air storage cavern and well system design for the CAES project. Their general scope of work included development of a cavern design, solution mining plan, and air production well design, cost, and schedule estimates for the project. Detailed Front End Engineering Design (FEED) during Phase 1 of the project determined that CAES plant capital equipment costs were much greater than the $125.6- million originally estimated by EPRI for the project. The initial air storage cavern Design Basis was increased from a single five million cubic foot capacity cavern to three, five million cubic foot caverns with associated air production wells and piping. The result of this change in storage cavern Design Basis increased project capital costs significantly. In addition, the development time required to complete the three cavern system was estimated at approximately six years. This meant that the CAES plant would initially go into service with only one third of the required storage capacity and would not achieve full capability until after approximately five years of commercial operation. The market price forecasting and dispatch modeling completed by CES indicated that the CAES technologies would operate at only 10 to 20% capacity factors and the resulting overall project economics were not favorable for further development. As a result of all of these factors, the Phase 1 FEED developed an installed CAES plant cost estimate of approximately $2,300/KW for the 210MW CAES 1A and 2 cycles. The capital cost for the 136 MW CAES 1 cycle was even higher due to the lower generating capacity of the cycle. Notably, the large equipment could have generated additional capacity (up to 270MW) which would have improved the cost per KW; however, the output was limited by the night time transmission system capability. The research herein, therefore, is particular to the site-specific factors that influenced the design and the current and forecasted generation mix and energy prices in Upstate New York and may not necessarily indicate that CAES plants cannot be economically constructed in other places in New York State or the world.

  12. Improving Compressed Air System Performance: A Sourcebook for Industry

    SciTech Connect (OSTI)

    2003-11-01

    NREL will produce this sourcebook for DOE's Industrial Technologies Office as part of a series of documents on industrial energy equipment. The sourcebook is a reference for industrial compressed air system users, outlining opportunities to improve system efficiency.

  13. COLLOQUIUM: Compressed Air Energy Storage: The Bridge to Our Renewable

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

    Energy Future | Princeton Plasma Physics Lab April 30, 2014, 4:00pm to 5:30pm Colloquia MBG Auditorium COLLOQUIUM: Compressed Air Energy Storage: The Bridge to Our Renewable Energy Future Mr. Al Cavallo Consultant Compressed air energy storage (CAES) is a proven, cost effective, environmentally acceptable technology for storing extremely large amounts of energy. Invented in the 1950s in Germany, and based on widely available gas turbine equipment, two CAES plants have been built and have

  14. Determine the Cost of Compressed Air for Your Plant; Industrial Technologies Program (ITP) Compressed Air Tip Sheet #1 (Fact Sheet)

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

    * August 2004 Industrial Technologies Program For additional information on industrial energy efficiency measures, contact the EERE Information Center at 1-877-337-3463 or visit the BestPractices Web site at www.eere.energy.gov/industry/bestpractices. Suggested Actions * Determine the cost of compressed air for your plant by periodically monitoring the compressor oper- ating hours and load duty cycle. * Use a systems approach while operating and maintaining a compressed air system. * Adopt a

  15. Eliminate Inappropriate Uses of Compressed Air; Industrial Technologies Program (ITP) Compressed Air Tip Sheet #2 (Fact Sheet)

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

    2 * August 2004 Industrial Technologies Program For additional information on industrial energy efficiency measures, contact the EERE Information Center at 1-877-337-3463 or visit the BestPractices Web site at www.eere.energy.gov/industry/bestpractices. Suggested Actions * Walk through your plant and identify all compressed air uses and, if possible, the fow and pressure requirements of each use. * Take steps to eliminate any inap- propriate uses. Consult with a compressed air systems specialist

  16. BEETIT: Building Cooling and Air Conditioning

    SciTech Connect (OSTI)

    None

    2010-09-01

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

  17. Stabilizing System Pressure; Industrial Technologies Program (ITP) Compressed Air Tip Sheet #8 (Fact Sheet)

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

    8 * August 2004 Industrial Technologies Program Suggested Actions * Review compressed air applications and determine the required level of air pressure. * Review your compressed air system's demand patterns to deter- mine which method for stabilizing pressure is most appropriate. References From Compressed Air Challenge ® (CAC): The Compressed Air System Best Practices Manual, Guidelines for Selecting a Compressed Air System Service Provider From DOE's Industrial Technologies Program and CAC:

  18. Air ejector augmented compressed air energy storage system

    DOE Patents [OSTI]

    Ahrens, F.W.; Kartsounes, G.T.

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

  19. Air ejector augmented compressed air energy storage system

    DOE Patents [OSTI]

    Ahrens, Frederick W.; Kartsounes, George T.

    1980-01-01

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

  20. Determining the Right Air Quality for Your Compressed Air System; Industrial Technologies Program (ITP) Compressed Air Tip Sheet #5 (Fact Sheet)

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

    5 * August 2004 Industrial Technologies Program For additional information on industrial energy efficiency measures, contact the EERE Information Center at 1-877-337-3463 or visit the BestPractices Web site at www.eere.energy.gov/industry/bestpractices. Suggested Actions * Review compressed air appli- cations and determine the appropriate level of air quality they require. * Review compressed air treatment equipment to ensure that it is performing adequately. * Inspect compressor inlet air

  1. HVAC Cabinet Air Leakage Test Method - Building America Top Innovation...

    Energy Savers [EERE]

    HVAC Cabinet Air Leakage Test Method - Building America Top Innovation HVAC Cabinet Air Leakage Test Method - Building America Top Innovation While HVAC installers have improved ...

  2. Compressed Air System Optimization Improves Production and saves energy at a Satellite Manufacturer

    SciTech Connect (OSTI)

    2002-05-01

    In 2001, a compressed air improvement project was implemented following an audit on the compressed air system at Boeing Satellite Systems (formerly Hughes Space & Communications Company) in Los Angeles, California.

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

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

    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 Energy-Reduction Goals...

  4. ASE/CAGI Meeting about Compressors and Compressed Air System Efficiency |

    Energy Savers [EERE]

    Department of Energy ASE/CAGI Meeting about Compressors and Compressed Air System Efficiency ASE/CAGI Meeting about Compressors and Compressed Air System Efficiency On April 25, 2013, several representatives of energy efficiency advocacy organizations met with staff and members of the Compressed Air and Gas Institute (CAGI) along with some compressed air experts at the offices of the Alliance to Save Energy to explore and discuss a consensus approach to advancing energy efficiency of

  5. Hollow-Fiber Membrane Compressed Air Drying System | Department of Energy

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

    Hollow-Fiber Membrane Compressed Air Drying System Hollow-Fiber Membrane Compressed Air Drying System New Membrane Allows Drying of Compressed Air at Lower Energy and Higher Productivity With the support of a NICE3 grant, a new hollow-fiber membrane for dehydrating gases has been developed by Air Products and Chemicals, Inc. The membrane has 5 times higher water vapor permeation coefficient and 25 times higher water vapor/air selectivity compared with first-generation membrane dryers. The

  6. Effect of Intake Air on Compressor Performance; Industrial Technologies Program (ITP) Compressed Air Tip Sheet #14 (Fact Sheet)

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

    4 * August 2004 Industrial Technologies Program Suggested Actions * Inspect the entry to the compressor air intake pipe and ensure that it is free of contaminants. * Inspect the compressed air intake flter element to ensure that it is of the appropriate type, that it is properly installed, and that it is clean. * Check the intake flter regularly for excess pressure drop. References From Compressed Air Challenge ® (CAC): The Compressed Air System Best Practices Manual, Guidelines for Selecting a

  7. Attic Air Sealing Guide - Building America Top Innovation | Department...

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

    Read the Top Innovation profile on the Guide to Attic Air Sealing. Find case studies of Building America projects across the country that utilize effective attic air sealing ...

  8. HVAC Cabinet Air Leakage Test Method - Building America Top Innovation |

    Energy Savers [EERE]

    Department of Energy HVAC Cabinet Air Leakage Test Method - Building America Top Innovation HVAC Cabinet Air Leakage Test Method - Building America Top Innovation While HVAC installers have improved their air sealing practices to reduce the amount of air leaking at ducts and duct boots, testing showed that distribution systems still leaked at air handlers and furnace HVAC Air Leakage Fig 1 Air handler furnace cabinet with pressure taps.jpg cabinets. This has hampered the ability of HVAC

  9. Lehigh Southwest Cement Company: Compressed Air System Improvement Saves Energy

    SciTech Connect (OSTI)

    2003-10-01

    In 2001, Lehigh Southwest Cement Company improved the compressed air system at its cement plant in Tehachapi, California. Consequently, the system was able to operate more efficiently with less compressor capacity and at a lower system pressure. The project yielded total annual savings of 895,000 kWh and $199,000. The initial project cost was $417,000, but Southern California Edison provided a $90,000 incentive payment to reduce the cost to $327,000. Simple payback was about 20 months.

  10. Compressed air energy storage technology program. Annual report for 1980

    SciTech Connect (OSTI)

    Kannberg, L.D.

    1981-06-01

    All of the major research funded under the Compressed Air Energy Storage Technology Program during the period March 1980 to March 1981 is described. This annual report is divided into two segments: Reservoir Stability Studies and Second-Generation Concepts Studies. The first represents research performed to establish stability criteria for CAES reservoirs while the second reports progress on research performed on second-generation CAES concepts. The report consists of project reports authored by research engineers and scientists from PNL and numerous subcontractors including universities, architect-engineering, and other private firms.

  11. Attic Air Sealing Guide - Building America Top Innovation | Department of

    Energy Savers [EERE]

    Energy Attic Air Sealing Guide - Building America Top Innovation Attic Air Sealing Guide - Building America Top Innovation Image showing step-by-step instructions for air sealing. One of the most effective energy measures for retrofitting homes across the United States is attic air sealing. The Building America-sponsored Guide to Attic Air Sealing provides much needed instruction essential to achieving effective energy savings while avoiding pitfalls that can lead to combustion safety and

  12. Building America Technology Solutions for New and Existing Homes: Air

    Energy Savers [EERE]

    Leakage and Air Transfer Between Garage and Living Space | Department of Energy Building America Technology Solutions for New and Existing Homes: Air Leakage and Air Transfer Between Garage and Living Space Building America Technology Solutions for New and Existing Homes: Air Leakage and Air Transfer Between Garage and Living Space In this project, Building Science Corporation worked with production home builder K. Hovnanian to conduct testing at a single-family home in Waldorf, Maryland,

  13. Property:Building/SPElectrtyUsePercAirCompressors | Open Energy...

    Open Energy Info (EERE)

    UsePercAirCompressors" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 1.86951260628 + Sweden Building 05K0002 + 0.0 + Sweden Building...

  14. Compressed air energy storage technology program. Annual report for 1979

    SciTech Connect (OSTI)

    Loscutoff, W.V.

    1980-06-01

    The objectives of the Compressed Air Energy Storage (CAES) program are to establish stability criteria for large underground reservoirs in salt domes, hard rock, and porous rock used for air storage in utility applications, and to develop second-generation CAES technologies that have minimal or no dependence on petroleum fuels. During the year reported reports have been issued on field studies on CAES on aquifers and in salt, stability, and design criteria for CAES and for pumped hydro-storage caverns, laboratory studies of CAES in porous rock reservoris have continued. Research has continued on combined CAES/Thermal Energy Storage, CAES/Solar systems, coal-fired fluidized bed combustors for CAES, and two-reservoir advanced CAES concepts. (LCL)

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

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

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

  16. Measure Guideline: Air Sealing Attics in Multifamily Buildings

    SciTech Connect (OSTI)

    Otis, C.; Maxwell, S.

    2012-06-01

    This Building America Measure Guideline is intended for owners, builders, contractors, homeowners, and other stakeholders in the multifamily building industry, and focuses on challenges found in existing buildings for a variety of housing types. It explains why air sealing is desirable, explores related health and safety issues, and identifies common air leakage points in multifamily building attics. In addition, it also gives an overview of materials and techniques typically used to perform air sealing work.

  17. Compressed Air System Upgrade Generates Significant Energy Savings at a Steel Mill

    SciTech Connect (OSTI)

    2010-06-25

    In 1996, U.S. Steel completed a project in which the main compressed air system at their Edgar Thomson plant in Braddock, Pennsylvania was overhauled.

  18. DOE Technical Targets for Fuel Cell System Humidifiers and Air Compression Systems

    Broader source: Energy.gov [DOE]

    These tables list the U.S. Department of Energy (DOE) technical targets for automotive and stationary fuel cell system humidifiers and automotive air compression systems.

  19. 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

    2006-04-01

    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.

  20. Outside Air Ventilation Controller - Building America Top Innovation...

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

    See an example of this Top Innovation in action. Find more case studies of Building America projects across the country that are implementing outside air ventilation controllers. ...

  1. Engineer End Uses for Maximum Efficiency; Industrial Technologies Program (ITP) Compressed Air Tip Sheet #10 (Fact Sheet)

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

    0 * August 2004 Industrial Technologies Program Suggested Actions * Review compressed air end uses and determine the required level of air pressure. * Review the compressed air end uses' original confgurations to determine whether manufacturing processes have evolved in such a way that those end uses are no longer necessary or can be reconfgured more effciently. References From Compressed Air Challenge ® (CAC): The Compressed Air System Best Practices Manual, Guidelines for Selecting a

  2. Assessment of the Market for Compressed Air Efficiency Services

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

    P r e p a r e d f o r O a k R i d g e N a t i o n a l L a b o r a t o r y a n d L a w r e n c e B e r k e l e y N a t i o n a l L a b o r a t o r y b y X E N E R G Y, I n c . B u r l i n g t o n , M a s s a c h u s e t t s A C K N O W L E D G M E N T S The U.S. Department of Energy and the authors would like to thank the Compressed Air Challenge ® Ad Hoc Evaluation Committee for their technical support and assistance in structuring the research and reviewing drafts of the report. The members of

  3. Air exchange effectiveness in office buildings: Measurement techniques and results

    SciTech Connect (OSTI)

    Fisk, W.J.; Faulkner, D.

    1992-07-01

    We define two air exchange effectiveness parameters which indicate the extent of short circuiting, mixing, or displacement air flow in an entire building, the air diffusion effectiveness which indicates the air flow pattern locally, and the normalized local age of air. After describing two tracer gas procedures for measuring these parameters, we discuss assumptions inherent in the data analysis that are often violated in large office buildings. To obtain valuable data, careful selection of buildings for measurements and assessments to determine if operating conditions are reasonably consistent with the assumptions are necessary. Multiple factors, in addition to the air flow pattern in the occupied space, can affect measurement results, consequently, the interpretation of measurements is not straightforward. We summarize the results of measurements in several office buildings and in a research laboratory. Almost all measurements indicate that the extent of both short circuiting and displacement flow is small. A moderate amount of short circuiting is evident from a few measurements in rooms with heated supply air. Ages of air and their reciprocals (local ventilation rates) often vary substantially between rooms, probably because of room-to-room variation in the rate of air supply. For future research, we suggest assessments of measurement accuracy, development of measurement approaches that may be practically applied for a broader range of buildings, and a greater focus on pollutant removal efficiencies.

  4. Compressed Air System Project Improves Production at a Candy Making Facility

    SciTech Connect (OSTI)

    2002-03-01

    The H.B. Reese Company successfully completed an upgrade of this compressed air system at its facility in Hershey, PA. The plant took two compressors offline while increasing throughput and quality.

  5. Rotary Vapor Compression Cycle Technology: A Pathway to Ultra-Efficient Air

    Energy Savers [EERE]

    Conditioning, Heating and Refrigeration | Department of Energy Rotary Vapor Compression Cycle Technology: A Pathway to Ultra-Efficient Air Conditioning, Heating and Refrigeration Rotary Vapor Compression Cycle Technology: A Pathway to Ultra-Efficient Air Conditioning, Heating and Refrigeration Lead Performer: Sandia National Laboratories, Livermore, CA Partners: Creative Thermal Solutions, Urbana, IL DOE Funding: $860,000 Cost Share: $86,000 Project Term: October 1, 2014 to September 30,

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

    Energy Savers [EERE]

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

  7. Building America Top Innovations 2012: Outside Air Ventilation Controller

    SciTech Connect (OSTI)

    none,

    2013-01-01

    venThis Building America Top Innovations profile describes Building America research showing how automated night ventilation can reduce cooling energy costs up to 40% and peak demand up to 50% in Californias hot-dry central valley climates and can eliminate the need for air conditioning altogether in the coastal marine climate.

  8. Outside Air Ventilation Controller- Building America Top Innovation

    Broader source: Energy.gov [DOE]

    This Building America Innovations profile describes Building America research showing automated night ventilation can reduce cooling energy costs up to 40% and peak demand up to 50% in California’s hot-dry central valley climates and can eliminate the need for air conditioning altogether in the coastal marine climate.

  9. Natural air motion in passive buildings

    SciTech Connect (OSTI)

    Balcomb, J.D.; Jones, G.F.

    1985-01-01

    The nature of natural convection is described, and a design chart is presented appropriate to a simple, single-doorway situation. Natural convective loops that can occur in buildings are described and a few experimental results are presented. Observations of stratification are discussed, similitude experiments are described, and the beginnings of a complete-system mathematical model are presented.

  10. New Air Cleaning Strategies for Reduced Commercial Building Ventilation Energy

    SciTech Connect (OSTI)

    Sidheswaran, Meera; Destaillats, Hugo; Sullivan, Douglas P.; Fisk, William J.

    2010-10-27

    Approximately ten percent of the energy consumed in U.S. commercial buildings is used by HVAC systems to condition outdoor ventilation air. Reducing ventilation rates would be a simple and broadly-applicable energy retrofit option, if practical counter measures were available that maintained acceptable concentrations of indoor-generated air pollutants. The two general categories of countermeasures are: 1) indoor pollutant source control, and 2) air cleaning. Although pollutant source control should be used to the degree possible, source control is complicated by the large number and changing nature of indoor pollutant sources. Particle air cleaning is already routinely applied in commercial buildings. Previous calculations indicate that particle filtration consumes only 10percent to 25percent of the energy that would otherwise be required to achieve an equivalent amount of particle removal with ventilation. If cost-effective air cleaning technologies for volatile organic compounds (VOCs) were also available, outdoor air ventilation rates could be reduced substantially and broadly in the commercial building stock to save energy. The research carried out in this project focuses on developing novel VOC air cleaning technologies needed to enable energy-saving reductions in ventilation rates. The minimum required VOC removal efficiency to counteract a 50percent reduction in ventilation rate for air cleaning systems installed in the HVAC supply airstream is modest (generally 20percent or less).

  11. Air Dispersion Modeling for Building 3026C/D Demolition

    SciTech Connect (OSTI)

    Ward, Richard C; Sjoreen, Andrea L; Eckerman, Keith F

    2010-06-01

    This report presents estimates of dispersion coefficients and effective dose for potential air dispersion scenarios of uncontrolled releases from Oak Ridge National Laboratory (ORNL) buildings 3026C, 3026D, and 3140 prior to or during the demolition of the 3026 Complex. The Environmental Protection Agency (EPA) AERMOD system1-6 was used to compute these estimates. AERMOD stands for AERMIC Model, where AERMIC is the American Meteorological Society-EPA Regulatory Model Improvement Committee. Five source locations (three in building 3026D and one each in building 3026C and the filter house 3140) and associated source characteristics were determined with the customer. In addition, the area of study was determined and building footprints and intake locations of air-handling systems were obtained. In addition to the air intakes, receptor sites consisting of ground level locations on four polar grids (50 m, 100 m, 200 m, and 500 m) and two intersecting lines of points (50 m separation), corresponding to sidewalks along Central Avenue and Fifth Street. Three years of meteorological data (2006 2008) were used each consisting of three datasets: 1) National Weather Service data; 2) upper air data for the Knoxville-Oak Ridge area; and 3) local weather data from Tower C (10 m, 30 m and 100 m) on the ORNL reservation. Annual average air concentration, highest 1 h average and highest 3 h average air concentrations were computed using AERMOD for the five source locations for the three years of meteorological data. The highest 1 h average air concentrations were converted to dispersion coefficients to characterize the atmospheric dispersion as the customer was interested in the most significant response and the highest 1 h average data reflects the best time-averaged values available from the AERMOD code. Results are presented in tabular and graphical form. The results for dose were obtained using radionuclide activities for each of the buildings provided by the customer.7 Radiation dose was calculated assuming complete release of the building inventory as information was lacking regarding the portion of the building inventory expected to be released. Thus the results are derived using an extremely conservative release as documented in the Preliminary Hazard Screening report.7 To more closely approximate the result of a release, one must estimate the fraction of the total inventory released and multiply the results described above by that fraction. An example of how this calculation is accomplished is provided. Should an actual uncontrolled release occur, the results of this modeling effort could only be used to establish a rough order-of-magnitude for the event.

  12. Demonstration of Isothermal Compressed Air Energy Storage to Support Renewable Energy Production

    SciTech Connect (OSTI)

    Bollinger, Benjamin

    2015-01-02

    This project develops and demonstrates a megawatt (MW)-scale Energy Storage System that employs compressed air as the storage medium. An isothermal compressed air energy storage (ICAESTM) system rated for 1 MW or more will be demonstrated in a full-scale prototype unit. Breakthrough cost-effectiveness will be achieved through the use of proprietary methods for isothermal gas cycling and staged gas expansion implemented using industrially mature, readily-available components.The ICAES approach uses an electrically driven mechanical system to raise air to high pressure for storage in low-cost pressure vessels, pipeline, or lined-rock cavern (LRC). This air is later expanded through the same mechanical system to drive the electric motor as a generator. The approach incorporates two key efficiency-enhancing innovations: (1) isothermal (constant temperature) gas cycling, which is achieved by mixing liquid with air (via spray or foam) to exchange heat with air undergoing compression or expansion; and (2) a novel, staged gas-expansion scheme that allows the drivetrain to operate at constant power while still allowing the stored gas to work over its entire pressure range. The ICAES system will be scalable, non-toxic, and cost-effective, making it suitable for firming renewables and for other grid applications.

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

    SciTech Connect (OSTI)

    Shanghai, Hongbo Qin; McKane, Aimee

    2007-06-01

    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.

  14. Compressed Air System Retrofitting Project Improves Productivity at a Foundry (Cast Masters, Bowling Green, OH)

    SciTech Connect (OSTI)

    2002-06-01

    This case study highlights International Truck and Engine Corporation's optimization project on the compressed air system that serves its foundry, Indianapolis Casting Corporation. Due to the project's implementation, the system's efficiency was greatly improved, allowing the foundry to operate with less compressor capacity, which resulted in reduced energy consumption, significant maintenance savings, and more reliable production.

  15. Compressed Air Project Improves Efficiency and Production at Harland Publishing Facility

    SciTech Connect (OSTI)

    2002-05-01

    Case study describing a project which configured a printing machine so that it consumes less compressed air and required lower pressure to operate effectively. Project replicated throughout the company, leading to energy cost savings of $200,000 per year, or 2.9 million kilowatt-hours.

  16. Electric power generating plant having direct-coupled steam and compressed-air cycles

    DOE Patents [OSTI]

    Drost, M.K.

    1981-01-07

    An electric power generating plant is provided with a Compressed Air Energy Storage (CAES) system which is directly coupled to the steam cycle of the generating plant. The CAES system is charged by the steam boiler during off peak hours, and drives a separate generator during peak load hours. The steam boiler load is thereby levelized throughout an operating day.

  17. Electric power generating plant having direct coupled steam and compressed air cycles

    DOE Patents [OSTI]

    Drost, Monte K. (Richland, WA)

    1982-01-01

    An electric power generating plant is provided with a Compressed Air Energy Storage (CAES) system which is directly coupled to the steam cycle of the generating plant. The CAES system is charged by the steam boiler during off peak hours, and drives a separate generator during peak load hours. The steam boiler load is thereby levelized throughout an operating day.

  18. Potential hazards of compressed air energy storage in depleted natural gas reservoirs.

    SciTech Connect (OSTI)

    Cooper, Paul W.; Grubelich, Mark Charles; Bauer, Stephen J.

    2011-09-01

    This report is a preliminary assessment of the ignition and explosion potential in a depleted hydrocarbon reservoir from air cycling associated with compressed air energy storage (CAES) in geologic media. The study identifies issues associated with this phenomenon as well as possible mitigating measures that should be considered. Compressed air energy storage (CAES) in geologic media has been proposed to help supplement renewable energy sources (e.g., wind and solar) by providing a means to store energy when excess energy is available, and to provide an energy source during non-productive or low productivity renewable energy time periods. Presently, salt caverns represent the only proven underground storage used for CAES. Depleted natural gas reservoirs represent another potential underground storage vessel for CAES because they have demonstrated their container function and may have the requisite porosity and permeability; however reservoirs have yet to be demonstrated as a functional/operational storage media for compressed air. Specifically, air introduced into a depleted natural gas reservoir presents a situation where an ignition and explosion potential may exist. This report presents the results of an initial study identifying issues associated with this phenomena as well as possible mitigating measures that should be considered.

  19. Two stroke homogenous charge compression ignition engine with pulsed air supplier

    DOE Patents [OSTI]

    Clarke, John M. (Chillicothe, IL)

    2003-08-05

    A two stroke homogenous charge compression ignition engine includes a volume pulsed air supplier, such as a piston driven pump, for efficient scavenging. The usage of a homogenous charge tends to decrease emissions. The use of a volume pulsed air supplier in conjunction with conventional poppet type intake and exhaust valves results in a relatively efficient scavenging mode for the engine. The engine preferably includes features that permit valving event timing, air pulse event timing and injection event timing to be varied relative to engine crankshaft angle. The principle use of the invention lies in improving diesel engines.

  20. Building a Business Case for Compressed Natural Gas in Fleet Applications

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Building a Business Case for Compressed Natural Gas in Fleet Applications George Mitchell National Renewable Energy Laboratory Technical Report NREL/TP-5400-63707 March 2015 NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency & Renewable Energy Operated by the Alliance for Sustainable Energy, LLC This report is available at no cost from the National Renewable Energy Laboratory (NREL) at www.nrel.gov/publications. Contract No. DE-AC36-08GO28308 National

  1. Property:Building/SPBreakdownOfElctrcityUseKwhM2AirCompressors...

    Open Energy Info (EERE)

    seKwhM2AirCompressors" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 1.33591087145 + Sweden Building 05K0002 + 0.0 + Sweden Building...

  2. Ford Van Dyke: Compressed Air Management Program Leads to Improvements that Reduce Energy Consumption at an Automotive Transmission Plant

    SciTech Connect (OSTI)

    2010-06-25

    Staff at the Ford Van Dyke Transmission Plant in Sterling Heights, Michigan, have increased the efficiency of the plants compressed air system to enhance its performance while saving energy and improving production.

  3. Natural air motion and stratification in passive buildings

    SciTech Connect (OSTI)

    Balcomb, J.D.; Jones, G.F.; Yamaguchi, Kenjiro

    1984-01-01

    Natural convection is a major mechanism for heat distribution in many passive solar buildings, especially those with sunspaces. To better understand this mechanism, observations of air velocities and temperatures have been made in 13 different houses that encompass a wide variety of one- and two-story geometries. This paper extends previous reports. Results from one house are described in detail, and some generalizations are drawn from the large additional mass of data taken. A simple mathematical model is presented that describes the general nature of airflow and energy flow through an aperture.

  4. Analytical modeling of a hydraulically-compensated compressed-air energy-storage system

    SciTech Connect (OSTI)

    McMonagle, C.A.; Rowe, D.S.

    1982-12-01

    A computer program was developed to calculate the dynamic response of a hydraulically-compensated compressed air energy storage (CAES) system, including the compressor, air pipe, cavern, and hydraulic compensation pipe. The model is theoretically based on the two-fluid model in which the dynamics of each phase are presented by its set of conservation equations for mass and momentum. The conservation equations define the space and time distribution of pressure, void fraction, air saturation, and phase velocities. The phases are coupled by two interface equations. The first defines the rate of generation (or dissolution) of gaseous air in water and can include the effects of supersaturation. The second defines the frictional shear coupling (drag) between the gaseous air and water as they move relative to each other. The relative motion of the air and water is, therefore, calculated and not specified by a slip or drift-velocity correlation. The total CASE system is represented by a nodal arrangement. The conservation equations are written for each nodal volume and are solved numerically. System boundary conditions include the air flow rate, atmospheric pressure at the top of the compensation pipe, and air saturation in the reservoir. Initial conditions are selected for velocity and air saturation. Uniform and constant temperature (60/sup 0/F) is assumed. The analytical model was used to investigate the dynamic response of a proposed system.Investigative calculations considered high and low water levels, and a variety of charging and operating conditions. For all cases investigated, the cavern response to air-charging, was a damped oscillation of pressure and flow. Detailed results are presented. These calculations indicate that the Champagne Effect is unlikely to cause blowout for a properly designed CAES system.

  5. Alternative Strategies for Low-Pressure End Uses; Industrial Technologies Program (ITP) Compressed Air Tip Sheet #11 (Fact Sheet)

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

    1 * August 2004 Industrial Technologies Program Suggested Actions * Review the compressed air applications to determine which ones are valid high-pressure and which ones can operate at lower pressures. The ones that can operate at low pressure could be supported with alternative methods. * Consider a professional compressed air system evaluation. Such an exam could determine what applications could be served more effciently and which appropriate alternative applications could replace them.

  6. Gas turbine engine adapted for use in combination with an apparatus for separating a portion of oxygen from compressed air

    DOE Patents [OSTI]

    Bland, Robert J. (Oviedo, FL); Horazak, Dennis A. (Orlando, FL)

    2012-03-06

    A gas turbine engine is provided comprising an outer shell, a compressor assembly, at least one combustor assembly, a turbine assembly and duct structure. The outer shell includes a compressor section, a combustor section, an intermediate section and a turbine section. The intermediate section includes at least one first opening and at least one second opening. The compressor assembly is located in the compressor section to define with the compressor section a compressor apparatus to compress air. The at least one combustor assembly is coupled to the combustor section to define with the combustor section a combustor apparatus. The turbine assembly is located in the turbine section to define with the turbine section a turbine apparatus. The duct structure is coupled to the intermediate section to receive at least a portion of the compressed air from the compressor apparatus through the at least one first opening in the intermediate section, pass the compressed air to an apparatus for separating a portion of oxygen from the compressed air to produced vitiated compressed air and return the vitiated compressed air to the intermediate section via the at least one second opening in the intermediate section.

  7. EA-1752: Pacific Gas & Electric Company (PG&E), Compressed Air Energy Storage (CAES) Compression Testing Phase Project, San Joaquin County, California

    Broader source: Energy.gov [DOE]

    DOE is preparing this EA to evaluate the potential environmental impacts of providing a financial assistance grant under the American Recovery and Reinvestment Act of 2009 for the construction of an advanced compressed air energy storage plant in San Francisco, California.

  8. Techni-Cast: Foundry Saves Energy with Compressed Air System Retrofit

    SciTech Connect (OSTI)

    none,

    2004-03-01

    In 2002, Techni-Cast improved its compressed air system at its foundry in Southgate, California. The project allowed the foundry to reduce its compressor capacity by 50%, which greatly reduced the foundry's energy and maintenance costs. The annual energy and maintenance savings from the project implementation are 242,000 kWh and $24,200, and the project's cost was $38,000. Because the plant received a $10,000 incentive payment from the California Public Utilities Commission, the total project cost was reduced to $28,000, yielding a 14-month simple payback.

  9. Combined compressed air storage-low BTU coal gasification power plant

    DOE Patents [OSTI]

    Kartsounes, George T.; Sather, Norman F.

    1979-01-01

    An electrical generating power plant includes a Compressed Air Energy Storage System (CAES) fueled with low BTU coal gas generated in a continuously operating high pressure coal gasifier system. This system is used in coordination with a continuously operating main power generating plant to store excess power generated during off-peak hours from the power generating plant, and to return the stored energy as peak power to the power generating plant when needed. The excess coal gas which is produced by the coal gasifier during off-peak hours is stored in a coal gas reservoir. During peak hours the stored coal gas is combined with the output of the coal gasifier to fuel the gas turbines and ultimately supply electrical power to the base power plant.

  10. Modeling of coupled thermodynamic and geomechanical performance of underground compressed air energy storage (CAES) in lined rock caverns

    SciTech Connect (OSTI)

    Rutqvist, J.; Kim, H. -M.; Ryu, D. -W.; Synn, J. -H.; Song, W. -K.

    2012-02-01

    We applied coupled nonisothermal, multiphase fluid flow and geomechanical numerical modeling to study the coupled thermodynamic and geomechanical performance of underground compressed air energy storage (CAES) in concrete-lined rock caverns. The paper focuses on CAES in lined caverns at relatively shallow depth (e.g., 100 m depth) in which a typical CAES operational pressure of 5 to 8 MPa is significantly higher than both ambient fluid pressure and in situ stress. We simulated a storage operation that included cyclic compression and decompression of air in the cavern, and investigated how pressure, temperature and stress evolve over several months of operation. We analyzed two different lining options, both with a 50 cm thick low permeability concrete lining, but in one case with an internal synthetic seal such as steel or rubber. For our simulated CAES system, the thermodynamic analysis showed that 96.7% of the energy injected during compression could be recovered during subsequent decompression, while 3.3% of the energy was lost by heat conduction to the surrounding media. Our geomechanical analysis showed that tensile effective stresses as high as 8 MPa could develop in the lining as a result of the air pressure exerted on the inner surface of the lining, whereas thermal stresses were relatively smaller and compressive. With the option of an internal synthetic seal, the maximum effective tensile stress was reduced from 8 to 5 MPa, but was still in substantial tension. We performed one simulation in which the tensile tangential stresses resulted in radial cracks and air leakage though the lining. This air leakage, however, was minor (about 0.16% of the air mass loss from one daily compression) in terms of CAES operational efficiency, and did not significantly impact the overall energy balance of the system. However, despite being minor in terms of energy balance, the air leakage resulted in a distinct pressure increase in the surrounding rock that could be quickly detected using pressure monitoring outside the concrete lining.

  11. Effects of radiation and compression on propagating spherical flames of methane/air mixtures near the lean flammability limit

    SciTech Connect (OSTI)

    Chen, Zheng [State Key Laboratory for Turbulence and Complex Systems, Department of Mechanics and Aerospace Engineering, College of Engineering, Peking University, Beijing 100871 (China)

    2010-12-15

    Large discrepancies between the laminar flame speeds and Markstein lengths measured in experiments and those predicted by simulations for ultra-lean methane/air mixtures bring a great concern for kinetic mechanism validation. In order to quantitatively explain these discrepancies, a computational study is performed for propagating spherical flames of lean methane/air mixtures in different spherical chambers using different radiation models. The emphasis is focused on the effects of radiation and compression. It is found that the spherical flame propagation speed is greatly reduced by the coupling between thermal effect (change of flame temperature or unburned gas temperature) and flow effect (inward flow of burned gas) induced by radiation and/or compression. As a result, for methane/air mixtures near the lean flammability limit, the radiation and compression cause large amounts of under-prediction of the laminar flame speeds and Markstein lengths extracted from propagating spherical flames. Since radiation and compression both exist in the experiments on ultra-lean methane/air mixtures reported in the literature, the measured laminar flame speeds and Markstein lengths are much lower than results from simulation and thus cannot be used for kinetic mechanism validation. (author)

  12. Building America Top Innovations 2014 Profile: HVAC Cabinet Air Leakage Test Method

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

    Building America-funded research by teams and national laboratories resulted in the development of an ASHRAE standard and a standardized testing method for testing the air leakage of HVAC air handlers and furnace cabinets and has spurred equipment manufacturers to tighten the cabinets they use for residential HVAC systems. While HVAC installers have improved their air sealing practices to reduce the amount of air leaking at ducts and duct boots, testing showed that distribution systems still

  13. Air Barriers for Residential and Commercial Buildings | Department...

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

    Peer Review emrgtech27hun040413.pdf More Documents & Publications Enclosures Standing Technical Committee Strategic Plan report Building Science Solutions Faster and...

  14. Exploring the concept of compressed air energy storage (CAES) in lined rock caverns at shallow depth: A modeling study of air tightness and energy balance

    SciTech Connect (OSTI)

    Kim, H.-M.; Rutqvist, J.; Ryu, D.-W.; Choi, B.-H.; Sunwoo, C.; Song, W.-K.

    2011-07-15

    This paper presents a numerical modeling study of coupled thermodynamic, multiphase fluid flow and heat transport associated with underground compressed air energy storage (CAES) in lined rock caverns. Specifically, we explored the concept of using concrete lined caverns at a relatively shallow depth for which constructing and operational costs may be reduced if air tightness and stability can be assured. Our analysis showed that the key parameter to assure long-term air tightness in such a system was the permeability of both the concrete lining and the surrounding rock. The analysis also indicated that a concrete lining with a permeability of less than 110{sup -18} m{sup 2} would result in an acceptable air leakage rate of less than 1%, with the operational pressure range between 5 and 8 MPa at a depth of 100 m. It was further noted that capillary retention properties and the initial liquid saturation of the lining were very important. Indeed, air leakage could be effectively prevented when the air-entry pressure of the concrete lining is higher than the operational air pressure and when the lining is kept moist at a relatively high liquid saturation. Our subsequent energy-balance analysis demonstrated that the energy loss for a daily compression and decompression cycle is governed by the air-pressure loss, as well as heat loss by conduction to the concrete liner and surrounding rock. For a sufficiently tight system, i.e., for a concrete permeability off less than 110{sup -18} m{sup 2}, heat loss by heat conduction tends to become proportionally more important. However, the energy loss by heat conduction can be minimized by keeping the air-injection temperature of compressed air closer to the ambient temperature of the underground storage cavern. In such a case, almost all the heat loss during compression is gained back during subsequent decompression. Finally, our numerical simulation study showed that CAES in shallow rock caverns is feasible from a leakage and energy efficiency viewpoint. Our numerical approach and energy analysis will next be applied in designing and evaluating the performance of a planned full-scale pilot test of the proposed underground CAES concept.

  15. Building America Technology Solutions for New and Existing Homes: Air Leakage and Air Transfer Between Garage and Living Space

    Broader source: Energy.gov [DOE]

    In this project, Building Science Corporation worked with production home builder K. Hovnanian to conduct testing at a single-family home in Waldorf, Maryland, constructed in accordance with the 2009 International Residential Code. The team used automated fan pressurization and pressure monitoring techniques to conduct a series of 25 tests to measure the garage and house air leakage and pressure relationships and the garage-to-house air leakage.

  16. TECHNOLOGIES TO ENHANCE THE OPERATION OF EXISTING NATURAL GAS COMPRESSION INFRASTRUCTURE - MANIFOLD DESIGN FOR CONTROLLING ENGINE AIR BALANCE

    SciTech Connect (OSTI)

    Gary D. Bourn; Ford A. Phillips; Ralph E. Harris

    2005-12-01

    This document provides results and conclusions for Task 15.0--Detailed Analysis of Air Balance & Conceptual Design of Improved Air Manifolds in the ''Technologies to Enhance the Operation of Existing Natural Gas Compression Infrastructure'' project. SwRI{reg_sign} is conducting this project for DOE in conjunction with Pipeline Research Council International, Gas Machinery Research Council, El Paso Pipeline, Cooper Compression, and Southern Star, under DOE contract number DE-FC26-02NT41646. The objective of Task 15.0 was to investigate the perceived imbalance in airflow between power cylinders in two-stroke integral compressor engines and develop solutions via manifold redesign. The overall project objective is to develop and substantiate methods for operating integral engine/compressors in gas pipeline service, which reduce fuel consumption, increase capacity, and enhance mechanical integrity.

  17. Building America Top Innovations 2014 Profile: HVAC Cabinet Air Leakage Test Method

    SciTech Connect (OSTI)

    none,

    2014-11-01

    This 2014 Top Innovation profile describes Building America-funded research by teams and national laboratories that resulted in the development of an ASHRAE standard and a standardized testing method for testing the air leakage of HVAC air handlers and furnace cabinets and has spurred equipment manufacturers to tighten the cabinets they use for residential HVAC systems.

  18. Building a Business Case for Compressed Natural Gas in Fleet Applications

    SciTech Connect (OSTI)

    Mitchell, G.

    2015-03-19

    Natural gas is a clean-burning, abundant, and domestically produced source of energy. Compressed natural gas (CNG) has recently garnered interest as a transportation fuel because of these attributes and because of its cost savings and price stability compared to conventional petroleum fuels. The National Renewable Energy Laboratory (NREL) developed the Vehicle Infrastructure and Cash-Flow Evaluation (VICE) model to help businesses and fleets evaluate the financial soundness of CNG vehicle and CNG fueling infrastructure projects.

  19. Combustion Safety for Appliances Using Indoor Air (Fact Sheet), Building America Case Study: Technology Solutions for New and Existing Homes, Building Technologies Office (BTO)

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

    Combustion Safety for Appliances Using Indoor Air PROJECT INFORMATION Project Name: Combustion Safety for Appliances Using Indoor Air Partners: American Gas Association www.aga.org Center of Energy and Environment www.mncee.org Building Performance Institute www.bpi.org NorthernSTAR Building America Partnership Partnership for Advanced Residential Retrofit www.gastechnology.org/PARR Building Components: Gas Appliances Application: Retrofit Single Family Year Tested: 2013 Applicable Climate

  20. Building America Case Study: Ventilation System Effectiveness and Tested Indoor Air Quality Impacts, Tyler, Texas

    SciTech Connect (OSTI)

    2015-08-01

    ?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 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. 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.

  1. NIOSH (National Institute for Occupational Safety and Health) indoor air quality in office buildings

    SciTech Connect (OSTI)

    Wallingford, K.M.

    1987-01-01

    A total of 356 indoor-air-quality health-hazard evaluations were completed by NIOSH from 1971 through December of 1985. Most of these studies concerned government and private office buildings where there were worker complaints. Worker complaints resulted from contamination from inside the building (19% of the cases), contamination from outside (11 percent), contamination from the building fabric (4%), biological contamination (5%), inadequate ventilation (50%), and unknown causes (11%). Health complaints addressed by investigative efforts included eye irritation, dry throat, headache, fatigue, sinus congestion, skin irritation, shortness of breath, cough, dizziness, and nausea.

  2. Building America Case Study: Air Leakage and Air Transfer Between Garage and Living Space, Waldorf, Maryland (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-11-01

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

  3. Petrologic and petrophysical evaluation of the Dallas Center Structure, Iowa, for compressed air energy storage in the Mount Simon Sandstone.

    SciTech Connect (OSTI)

    Heath, Jason E.; Bauer, Stephen J.; Broome, Scott Thomas; Dewers, Thomas A.; Rodriguez, Mark Andrew

    2013-03-01

    The Iowa Stored Energy Plant Agency selected a geologic structure at Dallas Center, Iowa, for evaluation of subsurface compressed air energy storage. The site was rejected due to lower-than-expected and heterogeneous permeability of the target reservoir, lower-than-desired porosity, and small reservoir volume. In an initial feasibility study, permeability and porosity distributions of flow units for the nearby Redfield gas storage field were applied as analogue values for numerical modeling of the Dallas Center Structure. These reservoir data, coupled with an optimistic reservoir volume, produced favorable results. However, it was determined that the Dallas Center Structure cannot be simplified to four zones of high, uniform permeabilities. Updated modeling using field and core data for the site provided unfavorable results for air fill-up. This report presents Sandia National Laboratories' petrologic and petrophysical analysis of the Dallas Center Structure that aids in understanding why the site was not suitable for gas storage.

  4. Building America Case Study: Evaluating Through-Wall Air Transfer Fans, Pittsburgh, Pennsylvania (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-10-01

    In this project, Building America team IBACOS performed field testing in a new construction unoccupied test house in Pittsburgh, Pennsylvania to evaluate heating, ventilating, and air conditioning (HVAC) distribution systems during heating, cooling, and midseason conditions. Four air-based HVAC distribution systems were assessed:-a typical airflow ducted system to the bedrooms, a low airflow ducted system to the bedrooms, a system with transfer fans to the bedrooms, and a system with no ductwork to the bedrooms. The relative ability of each system was considered with respect to relevant Air Conditioning Contractors of America and ASHRAE standards for house temperature uniformity and stability, respectively.

  5. Building America Best Practices Series, Volume 10: Retrofit Techniques and Technologies: Air Sealing

    SciTech Connect (OSTI)

    Baechler, Michael C.; Gilbride, Theresa L.; Hefty, Marye G.; Cole, Pamala C.; Williamson, Jennifer L.; Love, Pat M.

    2010-04-12

    This report was prepared by PNNL for the U.S. Department of Energy Building America Program. The report provides information to home owners who want to make their existing homes more energy efficient by sealing leaks in the building envelope (ceiling, walls, and floors) that let in drafts and let conditioned air escape. The report provides descriptions of 19 key areas of the home where air sealing can improve home performance and energy efficiency. The report includes suggestions on how to find a qualified weatherization or home performance contractor, what to expect in a home energy audit, opportune times for performing air sealing, and what safety and health concerns to be aware of. The report describes some basic building science concepts and topics related to air sealing including ventilation, diagnostic tools, and code requirements. The report will be available for free download from the DOE Building America website. It is a suitable consumer education tool for home performance and weatherization contractors to share with customers to describe the process and value of home energy retrofits.

  6. Energy and air quality implications of passive stack ventilation in residential buildings

    SciTech Connect (OSTI)

    Mortensen, Dorthe Kragsig; Walker, Iain S.; Sherman, Max

    2011-01-01

    Ventilation requires energy to transport and condition the incoming air. The energy consumption for ventilation in residential buildings depends on the ventilation rate required to maintain an acceptable indoor air quality. Historically, U.S. residential buildings relied on natural infiltration to provide sufficient ventilation, but as homes get tighter, designed ventilation systems are more frequently required particularly for new energy efficient homes and retrofitted homes. ASHRAE Standard 62.2 is used to specify the minimum ventilation rate required in residential buildings and compliance is normally achieved with fully mechanical whole-house systems; however, alternative methods may be used to provide the required ventilation when their air quality equivalency has been proven. One appealing method is the use of passive stack ventilation systems. They have been used for centuries to ventilate buildings and are often used in ventilation regulations in other countries. Passive stacks are appealing because they require no fans or electrical supply (which could lead to lower cost) and do not require maintenance (thus being more robust and reliable). The downside to passive stacks is that there is little control of ventilation air flow rates because they rely on stack and wind effects that depend on local time-varying weather. In this study we looked at how passive stacks might be used in different California climates and investigated control methods that can be used to optimize indoor air quality and energy use. The results showed that passive stacks can be used to provide acceptable indoor air quality per ASHRAE 62.2 with the potential to save energy provided that they are sized appropriately and flow controllers are used to limit over-ventilation.

  7. Mitigating the Impacts of Uncontrolled Air Flow on Indoor Environmental Quality and Energy Demand in Non-Residential Buildings

    SciTech Connect (OSTI)

    Hugh I. Henderson; Jensen Zhang; James B. Cummings; Terry Brennan

    2006-07-31

    This multi-faceted study evaluated several aspects of uncontrolled air flows in commercial buildings in both Northern and Southern climates. Field data were collected from 25 small commercial buildings in New York State to understand baseline conditions for Northern buildings. Laboratory wall assembly testing was completed at Syracuse University to understand the impact of typical air leakage pathways on heat and moisture transport within wall assemblies for both Northern and Southern building applications. The experimental data from the laboratory tests were used to verify detailed heat and moisture (HAM) simulation models that could be used to evaluate a wider array of building applications and situations. Whole building testing at FSEC's Building Science Laboratory (BSL) systematically evaluated the energy and IAQ impacts of duct leakage with various attic and ceiling configurations. This systematic test carefully controlled all aspects of building performance to quantify the impact of duct leakage and unbalanced flow. The newest features of the EnergyPlus building simulation tool were used to model the combined impacts of duct leakage, ceiling leakage, unbalanced flows, and air conditioner performance. The experimental data provided the basis to validate the simulation model so it could be used to study the impact of duct leakage over a wide range of climates and applications. The overall objective of this project was to transfer work and knowledge that has been done on uncontrolled air flow in non-residential buildings in Florida to a national basis. This objective was implemented by means of four tasks: (1) Field testing and monitoring of uncontrolled air flow in a sample of New York buildings; (2) Detailed wall assembly laboratory measurements and modeling; (3) Whole building experiments and simulation of uncontrolled air flows; and (4) Develop and implement training on uncontrolled air flows for Practitioners in New York State.

  8. Technical and economic assessment of fluidized bed augmented compressed air energy-storage system. Volume II. Introduction and technology assessment

    SciTech Connect (OSTI)

    Giramonti, A.J.; Lessard, R.D.; Merrick, D.; Hobson, M.J.

    1981-09-01

    The results are described of a study subcontracted by PNL to the United Technologies Research Center on the engineering feasibility and economics of a CAES concept which uses a coal fired, fluidized bed combustor (FBC) to heat the air being returned from storage during the power production cycle. By burning coal instead of fuel oil, the CAES/FBC concept can completely eliminate the dependence of compressed air energy storage on petroleum fuels. The results of this assessment effort are presented in three volumes. Volume II presents a discussion of program background and an in-depth coverage of both fluid bed combustion and turbomachinery technology pertinent to their application in a CAES power plant system. The CAES/FBC concept appears technically feasible and economically competitive with conventional CAES. However, significant advancement is required in FBC technology before serious commercial commitment to CAES/FBC can be realized. At present, other elements of DOE, industrial groups, and other countries are performing the required R and D for advancement of FBC technology. The CAES/FBC will be reevaluated at a later date when FBC technology has matured and many of the concerns now plaguing FBC are resolved. (LCL)

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

    Broader source: Energy.gov [DOE]

    This case study describes how FUJIFILM Hunt Chemicals U.S.A. implemented a comprehensive, compressed air system energy-reduction strategy at its Dayton, Tennessee, manufacturing facility and saved more than 1,240,000 kilowatt hours of energy between 2008 and 2011.

  10. EA-1751: Smart Grid, New York State Gas & Electric, Compressed Air Energy Storage Demonstration Plant, Near Watkins Glen, Schuyler County, New York

    Broader source: Energy.gov [DOE]

    DOE will prepare an EA to evaluate the potential environmental impacts of providing a financial assistance grant under the American Recovery and Reinvestment Act of 2009 for the construction of a compressed air energy storage demonstration plant in Schuyler County, New York.

  11. Energy Efficiency in Buildings as an Air Quality Compliance Approach: Opportunities for the U.S. Department of Energy

    SciTech Connect (OSTI)

    Vine, Edward

    2002-05-01

    Increasing the energy efficiency of end-use equipment in the residential, commercial, and industrial sectors can reduce air pollution emissions and greenhouse gases significantly. Because energy efficiency is an effective means of reducing multi-pollutant emissions, it is important to ensure that energy efficiency is a fully engaged component of emission-reduction programs. However, while energy-efficiency measures are perceived by many stakeholders to be important options for improving air quality, some members in the air quality community are concerned about the ability of these measures to fit in a regulatory framework-in particular, the ability of emissions reductions from energy-efficiency measures to be real, quantifiable, certifiable, and enforceable. Hence, there are few air quality programs that include energy efficiency as a tool for complying with air quality regulations. This paper describes the connection between energy consumption and air quality, the potential role of energy-efficiency measures to meet air quality regulations, the barriers and challenges to the use of these measures in the air quality regulatory environment, and the potential role that the U.S. Department of Energy's (USDOE) Energy Efficiency and Renewable Energy's Building Technology, State and Community Programs (EERE-Buildings) could play in this area. EERE-Buildings can play a very important role in promoting energy efficiency in the air quality community, in ways that are fully consistent with its overall mission. EERE-Buildings will need to work with other stakeholders to aggressively promote energy efficiency via multiple means: publications, analytical tools, pilot programs, demonstrations, and program and policy analysis and evaluation. EERE-Buildings and state energy officials have considerable experience in implementing and monitoring energy-savings projects, as well as in designing documentation and verification requirements of energy-efficiency improvements. The following lists suggest potential EERE-Buildings activities, grouped by whether EERE-Buildings would play a lead or supporting role.

  12. Building America Case Study: Challenges of Achieving 2012 IECC Air Sealing Requirements in Multifamily Dwellings, Upstate New York (Fact Sheet), Whole-House Solutions for New Homes, Energy Efficiency & Renewable Energy (EERE)

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

    information, see the Building America report, Challenges of Achieving 2012 IECC Air Sealing Requirements in Multifamily Buildings,

  13. Building America Case Study: Challenges of Achieving 2012 IECC Air Sealing Requirements in Multifamily Dwellings, Upstate New York (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-11-01

    While previous versions of the International Energy Conservation Code (IECC) have included provisions to improve the air tightness of dwellings, for the first time, the 2012 IECC mandates compliance verification through blower door testing. Simply completing the Air Barrier and Insulation Installation checklist through visual inspection is no longer sufficient by itself. In addition, the 2012 IECC mandates a significantly stricter air sealing requirement. In Climate Zones 3 through 8, air leakage may not exceed 3 ACH50, which is a significant reduction from the 2009 IECC requirement of 7 ACH50. This requirement is for all residential buildings, which includes low-rise multifamily dwellings. While this air leakage rate requirement is an important component to achieving an efficient building thermal envelope, currently, the code language doesn't explicitly address differences between single family and multifamily applications. In addition, the 2012 IECC does not provide an option to sample dwellings for larger multifamily buildings, so compliance would have to be verified on every unit. With compliance with the 2012 IECC air leakage requirements on the horizon, several of CARB's multifamily builder partners are evaluating how best to comply with this requirement. Builders are not sure whether it is more practical or beneficial to simply pay for guarded testing or to revise their air sealing strategies to improve compartmentalization to comply with code requirements based on unguarded blower door testing. This report summarizes CARB's research that was conducted to assess the feasibility of meeting the 2012 IECC air leakage requirements in 3 multifamily buildings.

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

    SciTech Connect (OSTI)

    Wetter, Michael

    2009-06-17

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

  15. Modeling the Air Flow in the 3410 Building Filtered Exhaust Stack System

    SciTech Connect (OSTI)

    Recknagle, Kurtis P.; Barnett, J. M.; Suffield, Sarah R.

    2013-01-23

    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.

  16. Chapter 22: Compressed Air Evaluation Protocol. The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures: September 2011 … December 2014

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

    2: Compressed Air Evaluation Protocol The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures Created as part of subcontract with period of performance September 2011 - December 2014 Nathanael Benton Nexant, Inc. San Francisco, California NREL Technical Monitor: Charles Kurnik Subcontract Report NREL/SR-7A40-63210 November 2014 NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency & Renewable Energy Operated by

  17. A model for thermally driven heat and air transport in passive solar buildings

    SciTech Connect (OSTI)

    Jones, G.F.; Balcomb, J.D.; Otis, D.R.

    1985-01-01

    A model for transient interzone heat and air flow transport in passive solar buildings is presented incorporating wall boundary layers in stratified zones, and with interzone transport via apertures (doors and windows). The model includes features that have been observed in measurements taken in more than a dozen passive solar buildings. The model includes integral formulations of the laminar and turbulent boundary layer equations for the vertical walls which are then coupled to a one-dimensional core model for each zone. The cores in each zone exchange mass and energy through apertures that are modeled by an orifice type equation. The procedure is transient in that time dependence is retained only in the core equations which are solved by an explicit method. The model predicts room stratification of about 2/sup 0/C/m (1.1/sup 0/F/ft) for a room-to-room temperature difference of 0.56/sup 0/C(1/sup 0/F) which is in general agreement with the data.

  18. Model for thermally driven heat and air transport in passive solar buildings

    SciTech Connect (OSTI)

    Jones, G.F.; Balcomb, J.D.; Otis, D.R.

    1985-01-01

    A model for transient interzone heat and air flow transport in passive solar buildings is presented incorporating wall boundary layers in stratified zones, and with interzone transport via apertures (doors and windows). The model includes features that have been observed in measurements taken in more than a dozen passive solar buildings. The model includes integral formulations of the laminar and turbulent boundary layer equations for the vertical walls which are then coupled to a one-dimensional core model for each zone. The cores in each zone exchange mass and energy through apertures that are modeled by an orifice type equation. The procedure is transient in that time dependence is retained only in the core equations which are solved by an explicit method. The model predicts room stratification of about 2/sup 0/C/m (1.1/sup 0/F/ft) for a room-to-room temperature difference of 0.56/sup 0/C(1/sup 0/F) which is in general agreement with the data. 38 references, 10 figures, 1 table.

  19. Build-

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

    Air Condi- tioners","District Chilled Water","Central Chillers","Pack- aged Air Condi- ...,2311,1837,1162,"Q","Q" "District Chilled Water ......",2853,2853,"Q",251,439,2853,"Q",51...

  20. Building America Technology Solutions for New and Existing Homes: Combustion Safety Using Appliances for Indoor Air (Fact Sheet)

    Broader source: Energy.gov [DOE]

    In this case study, the Partnership for Advanced Residential Retrofit team provides guidance on how to assess and carry out the combustion safety procedures for appliances and heating equipment that uses indoor air for combustion in low-rise residential buildings.

  1. Buildings

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

    Superior Energy Performance Policy Interpretation providing a certification pathway for Commercial Buildings May 7, 2015 Question: As a hotel or university campus, can I use the ...

  2. Building

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

    DIV. Electricity Consumption and Expenditure Intensities by Census Division, 1999" ,"Electricity Consumption",,,"Electricity Expenditures" ,"per Building (thousand kWh)","per...

  3. Building America Whole-House Solutions for New Homes: Challenges of Achieving 2012 IECC Air Sealing Requirements in Multifamily Dwellings, Upstate New York

    Broader source: Energy.gov [DOE]

    In this project, the Consortium for Advanced Residential Buildings team sought to create a well-documented design and implementation strategy for air sealing in low-rise multifamily buildings that would assist in compliance with new building infiltration requirements of the 2012 IECC.

  4. Building America Case Study: Air Leakage and Air Transfer Between Garage and Living Space - Waldorf, Maryland (Fact Sheet), Technology Solutions for New and Existing Homes, Energy Efficiency & Renewable Energy (EERE)

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

    Air Leakage and Air Transfer Between Garage and Living Space Waldorf, Maryland PROJECT INFORMATION Project Name: Ventilation Effectiveness Location: Waldorf, MD Partners: Building Science Corporation, buildingscience.com K. Hovnanian Homes, khov.com Building Component: Building and garage ventilation Application: New and retrofit; single and multifamily Year Tested: 2013 Applicable Climate Zone(s): All PERFORMANCE DATA Cost of energy efficiency measure (including labor): $0 if no garage

  5. Build-

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

    Air Condi- tioners","District Chilled Water","Central Chillers","Pack- aged Air Condi- ...Q",2,13,25,15,8,"Q","Q" "District Chilled Water ......",33,33,"Q",1,2,33,"Q",4,"Q","Q" ...

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

    Energy Savers [EERE]

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

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

    SciTech Connect (OSTI)

    none,

    2011-09-01

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

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

    SciTech Connect (OSTI)

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

    2012-10-01

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

  9. Buildings

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

    Superior Energy Performance® Policy Interpretation providing a certification pathway for Commercial Buildings May 7, 2015 Question: As a hotel or university campus, can I use the supporting standards and protocols developed for SEP- Industry to apply for SEP certification? Response: The SEP Administrator is providing this interpretation regarding the types of facilities that can be certified to Superior Energy Performance (SEP). Background: A number of owners/operators of buildings and complex

  10. General Compression | Open Energy Information

    Open Energy Info (EERE)

    Newton, Massachusetts Zip: 2458 Product: Massachusetts-based developer of compressed air energy storage systems. Coordinates: 43.996685, -87.803724 Show Map Loading map......

  11. Building America Whole-House Solutions for Existing Homes: Passive Room-to-Room Air Transfer, Fresno, California (Fact Sheet)

    Broader source: Energy.gov [DOE]

    In this project, IBACOS, a U.S. Department of Energy Building America team, assessed a strategy for providing conditioned air to bedrooms when the bedroom doors are closed and measured potential thermal discomfort that occupants may experience when this strategy is used. Builders can use this information to discuss space conditioning options for low-load houses with their clients to determine acceptable comfort levels for occupants in these cost-optimized, energy-efficient houses.

  12. Boise Air Traffic Control Tower: High Performance and sustainable Building Guiding Principles Technical Assistance

    SciTech Connect (OSTI)

    Fowler, Kimberly M.; Goel, Supriya; Henderson, Jordan W.

    2013-09-01

    Overview of energy efficiency opportunities for new FAA tower construction using the Boise Air Traffic Control Tower as an example.

  13. Preliminary formation analysis for compressed air energy storage in depleted natural gas reservoirs : a study for the DOE Energy Storage Systems Program.

    SciTech Connect (OSTI)

    Gardner, William Payton

    2013-06-01

    The purpose of this study is to develop an engineering and operational understanding of CAES performance for a depleted natural gas reservoir by evaluation of relative permeability effects of air, water and natural gas in depleted natural gas reservoirs as a reservoir is initially depleted, an air bubble is created, and as air is initially cycled. The composition of produced gases will be evaluated as the three phase flow of methane, nitrogen and brine are modeled. The effects of a methane gas phase on the relative permeability of air in a formation are investigated and the composition of the produced fluid, which consists primarily of the amount of natural gas in the produced air are determined. Simulations of compressed air energy storage (CAES) in depleted natural gas reservoirs were carried out to assess the effect of formation permeability on the design of a simple CAES system. The injection of N2 (as a proxy to air), and the extraction of the resulting gas mixture in a depleted natural gas reservoir were modeled using the TOUGH2 reservoir simulator with the EOS7c equation of state. The optimal borehole spacing was determined as a function of the formation scale intrinsic permeability. Natural gas reservoir results are similar to those for an aquifer. Borehole spacing is dependent upon the intrinsic permeability of the formation. Higher permeability allows increased injection and extraction rates which is equivalent to more power per borehole for a given screen length. The number of boreholes per 100 MW for a given intrinsic permeability in a depleted natural gas reservoir is essentially identical to that determined for a simple aquifer of identical properties. During bubble formation methane is displaced and a sharp N2methane boundary is formed with an almost pure N2 gas phase in the bubble near the borehole. During cycling mixing of methane and air occurs along the boundary as the air bubble boundary moves. The extracted gas mixture changes as a function of time and proximity of the bubble boundary to the well. For all simulations reported here, with a formation radius above 50 m the maximum methane composition in the produced gas phase was less than 0.5%. This report provides an initial investigation of CAES in a depleted natural gas reservoir, and the results will provide useful guidance in CAES system investigation and design in the future.

  14. New Air Cleaning Strategies for Reduced Commercial Building Ventilation Energy ? FY11 Final Report

    SciTech Connect (OSTI)

    Sidheswaran, Meera; Destaillats, Hugo; Cohn, Sebastian; Sullivan, Douglas P.; Fisk, William J.

    2011-10-31

    The research carried out in this project focuses on developing novel volatile organic compounds (VOCs) air cleaning technologies needed to enable energy-saving reductions in ventilation rates. we targeted a VOC air cleaning system that could enable a 50% reduction in ventilation rates. In a typical commercial HVAC system that provides a mixture of recirculated and outdoor air, a VOC air cleaner in the supply airstream must have a 15% to 20% VOC removal efficiency to counteract a 50% reduction in outdoor air supply.

  15. Building America Top Innovations Hall of Fame Profile … Attic Air Sealing Guidelines

    Energy Savers [EERE]

    Terminology Air Barrier Material (ABM) --- A does not allow air to pass throu plywood/OSB, foam board, duc lumber. Backing --- Any material that s be sprayed so as to provide an glass batts. Baffle (B) --- Manufactured chu direct ventilation air flow up an foam board or cardboard. Thermal Blocking --- Any rigid heat sources like chimneys or metal and gypsum board. Fasteners --- Staples, screws o attach Thermal Blocking or AB Sealant --- Any flexible produc or more materials will adhere a Detail

  16. Building.

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

    Plant in ITER refers to plant systems located outside the Tokamak Building. A thick wall of concrete surrounding the main tokamak cryostat and designed to absorb the bulk of any remaining radiation from the plasma or from activated components inside the cryostat. This shields the region outside so that it can be accessed after shutdown for major hands-on repairs. The structure surrounding the plasma in a fusion reactor, within which the fusion-produced neutrons are slowed down, heat is

  17. Long-term Operation of an External Cavity Quantum Cascade Laser-based Trace-gas Sensor for Building Air Monitoring

    SciTech Connect (OSTI)

    Phillips, Mark C.; Craig, Ian M.

    2013-11-03

    We analyze the long-term performance and stability of a trace-gas sensor based on an external cavity quantum cascade laser using data collected over a one-year period in a building air monitoring application.

  18. Building America Best Practices Series, Vol. 10 - Retrofit Techniques & Technologies: Air Sealing, A Guide for Contractors to Share with Homeowners

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

    TECHNOLOGIES PROGRAM R Retrofit Techniques & Technologies: Air Sealing A Guide for Contractors to Share with Homeowners PREPARED BY Pacific Northwest National Laboratory & Oak Ridge National Laboratory April 12, 2010 April 12, 2010 * PNNL-19284 BUILDING AMERICA BEST PRACTICES SERIES VOLUME 10. BuiLDiNG AmERiCA BEST PRACTiCES SERiES Retrofit Techniques and Technologies: Air Sealing A Guide for Contractors to Share with Homeowners PREPARED BY Pacific Northwest National Laboratory michael

  19. Researching Complex Heat, Air and Moisture Interactions for a Wide-Range of Building Envelope Systems and Environmental Loads

    SciTech Connect (OSTI)

    Karagiozis, A.N.

    2007-05-15

    This document serves as the final report documenting work completed by Oak Ridge National Laboratory (ORNL) and the Fraunhofer Institute in Building Physics (Holzkirchen, Germany) under an international CRADA No. 0575 with Fraunhofer Institute of Bauphysics of the Federal Republic of Germany for Researching Complex Heat, Air and Moisture Interactions for a Wide Range of Building Envelope Systems and Environmental Loads. This CRADA required a multi-faceted approach to building envelope research that included a moisture engineering approach by blending extensive material property analysis, laboratory system and sub-system thermal and moisture testing, and advanced moisture analysis prediction performance. The Participant's Institute for Building physics (IBP) and the Contractor's Buildings Technology Center (BTC) identified potential research projects and activities capable of accelerating and advancing the development of innovative, low energy and durable building envelope systems in diverse climates. This allowed a major leverage of the limited resources available to ORNL to execute the required Department of Energy (DOE) directives in the area of moisture engineering. A joint working group (ORNL and Fraunhofer IBP) was assembled and a research plan was executed from May 2000 to May 2005. A number of key deliverables were produced such as adoption of North American loading into the WUFI-software. in addition the ORNL Weather File Analyzer was created and this has been used to address environmental loading for a variety of US climates. At least 4 papers have been co-written with the CRADA partners, and a chapter in the ASTM Manual 40 on Moisture Analysis and Condensation Control. All deliverables and goals were met and exceeded making this collaboration a success to all parties involves.

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

    SciTech Connect (OSTI)

    none,

    2013-09-01

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

  1. Rotary Vapor Compression Cycle Technology: A Pathway to Ultra...

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

    Rotary Vapor Compression Cycle Technology: A Pathway to Ultra-Efficient Air Conditioning, Heating and Refrigeration Rotary Vapor Compression Cycle Technology: A Pathway to...

  2. Compressed air energy storage: preliminary design and site development program in an aquifer. Final draft, Task 2: Volume 2 of 3. Characterize and explore potential sites and prepare research and development plan

    SciTech Connect (OSTI)

    1980-12-01

    The characteristics of sites in Indiana and Illinois which are being investigated as potential sites for compressed air energy storage power plants are documented. These characteristics include geological considerations, economic factors, and environmental considerations. Extensive data are presented for 14 specific sites and a relative rating on the desirability of each site is derived. (LCL)

  3. Description and preliminary validation of a model for natural convection heat and air transport in passive solar buildings

    SciTech Connect (OSTI)

    Jones, G.F.; Balcomb, J.D.

    1985-01-01

    We have proposed a transient, quasi-two-dimensional, numerical model for interzone heat flow and airflow in passive solar buildings. The paths for heat flow and airflow are through connecting apertures such as doorways, hallways, and stairways. The model includes the major features that influence interzone convection as determined from the results of our flow visualization tests and temperature and airflow measurements taken in more than a dozen passive solar buildings. The model includes laminar and turbulent quasi-steady boundary-layer equations at vertical heated or cooled walls which are coupled to a one-dimensional core model for each zone. The cores in each zone exchange air and energy through the aperture which is modelled by a Bernoulli equation. Preliminary results from the model are in general agreement with data obtained in full-scale buildings and laboratory experiments. The model predicts room-core temperature stratification of about 2/sup 0/C/m (1.1/sup 0/ F/ft) and maximum aperture velocities of 0.08 m/s (15 ft/min.) for a room-to-room temperature difference of 1/sup 0/F.

  4. Lessons from Iowa : development of a 270 megawatt compressed air energy storage project in midwest Independent System Operator : a study for the DOE Energy Storage Systems Program.

    SciTech Connect (OSTI)

    Holst, Kent; Huff, Georgianne; Schulte, Robert H.; Critelli, Nicholas

    2012-01-01

    The Iowa Stored Energy Park was an innovative, 270 Megawatt, $400 million compressed air energy storage (CAES) project proposed for in-service near Des Moines, Iowa, in 2015. After eight years in development the project was terminated because of site geological limitations. However, much was learned in the development process regarding what it takes to do a utility-scale, bulk energy storage facility and coordinate it with regional renewable wind energy resources in an Independent System Operator (ISO) marketplace. Lessons include the costs and long-term economics of a CAES facility compared to conventional natural gas-fired generation alternatives; market, legislative, and contract issues related to enabling energy storage in an ISO market; the importance of due diligence in project management; and community relations and marketing for siting of large energy projects. Although many of the lessons relate to CAES applications in particular, most of the lessons learned are independent of site location or geology, or even the particular energy storage technology involved.

  5. Energy Savings Potential and RD&D Opportunities for Non-Vapor-Compression HVAC Technologies

    SciTech Connect (OSTI)

    none,

    2014-03-01

    While vapor-compression technologies have served heating, ventilation, and air-conditioning (HVAC) needs very effectively, and have been the dominant HVAC technology for close to 100 years, the conventional refrigerants used in vapor-compression equipment contribute to global climate change when released to the atmosphere. This Building Technologies Office report: --Identifies alternatives to vapor-compression technology in residential and commercial HVAC applications --Characterizes these technologies based on their technical energy savings potential, development status, non-energy benefits, and other factors affecting end-user acceptance and their ability to compete with conventional vapor-compression systems --Makes specific research, development, and deployment (RD&D) recommendations to support further development of these technologies, should DOE choose to support non-vapor-compression technology further.

  6. Building America Case Study: Ventilation System Effectiveness and Tested Indoor Air Quality Impacts, Tyler, Texas (Fact Sheet), Technology Solutions for New and Existing Homes, Energy Efficiency & Renewable Energy (EERE)

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

    Ventilation System Effectiveness and Tested Indoor Air Quality Impacts Tyler, Texas PROJECT INFORMATION Project Name: Ventilation Effectiveness Location: Tyler, TX Partners: University of Texas, TxAIRE, uttyler.edu/txaire/houses/ Building Science Corporation, buildingscience.com Building Component: Heating, ventilating, and air conditioning (HVAC), whole-building dilution ventilation Application: New and retrofit; single-family and multifamily Year Tested: 2012 Climate Zones: All PERFORMANCE

  7. Compression embedding

    DOE Patents [OSTI]

    Sandford, II, Maxwell T. (Los Alamos, NM); Handel, Theodore G. (Los Alamos, NM); Bradley, Jonathan N. (Los Alamos, NM)

    1998-01-01

    A method and apparatus for embedding auxiliary information into the digital representation of host data created by a lossy compression technique and a method and apparatus for constructing auxiliary data from the correspondence between values in a digital key-pair table with integer index values existing in a representation of host data created by a lossy compression technique. The methods apply to data compressed with algorithms based on series expansion, quantization to a finite number of symbols, and entropy coding. Lossy compression methods represent the original data as ordered sequences of blocks containing integer indices having redundancy and uncertainty of value by one unit, allowing indices which are adjacent in value to be manipulated to encode auxiliary data. Also included is a method to improve the efficiency of lossy compression algorithms by embedding white noise into the integer indices. Lossy compression methods use loss-less compression to reduce to the final size the intermediate representation as indices. The efficiency of the loss-less compression, known also as entropy coding compression, is increased by manipulating the indices at the intermediate stage. Manipulation of the intermediate representation improves lossy compression performance by 1 to 10%.

  8. Compression embedding

    DOE Patents [OSTI]

    Sandford, M.T. II; Handel, T.G.; Bradley, J.N.

    1998-07-07

    A method and apparatus for embedding auxiliary information into the digital representation of host data created by a lossy compression technique and a method and apparatus for constructing auxiliary data from the correspondence between values in a digital key-pair table with integer index values existing in a representation of host data created by a lossy compression technique are disclosed. The methods apply to data compressed with algorithms based on series expansion, quantization to a finite number of symbols, and entropy coding. Lossy compression methods represent the original data as ordered sequences of blocks containing integer indices having redundancy and uncertainty of value by one unit, allowing indices which are adjacent in value to be manipulated to encode auxiliary data. Also included is a method to improve the efficiency of lossy compression algorithms by embedding white noise into the integer indices. Lossy compression methods use loss-less compression to reduce to the final size the intermediate representation as indices. The efficiency of the loss-less compression, known also as entropy coding compression, is increased by manipulating the indices at the intermediate stage. Manipulation of the intermediate representation improves lossy compression performance by 1 to 10%. 21 figs.

  9. Compression embedding

    DOE Patents [OSTI]

    Sandford, II, Maxwell T. (Los Alamos, NM); Handel, Theodore G. (Los Alamos, NM); Bradley, Jonathan N. (Los Alamos, NM)

    1998-01-01

    A method of embedding auxiliary information into the digital representation of host data created by a lossy compression technique. The method applies to data compressed with lossy algorithms based on series expansion, quantization to a finite number of symbols, and entropy coding. Lossy compression methods represent the original data as integer indices having redundancy and uncertainty in value by one unit. Indices which are adjacent in value are manipulated to encode auxiliary data. By a substantially reverse process, the embedded auxiliary data can be retrieved easily by an authorized user. Lossy compression methods use loss-less compressions known also as entropy coding, to reduce to the final size the intermediate representation as indices. The efficiency of the compression entropy coding, known also as entropy coding is increased by manipulating the indices at the intermediate stage in the manner taught by the method.

  10. Compression embedding

    DOE Patents [OSTI]

    Sandford, M.T. II; Handel, T.G.; Bradley, J.N.

    1998-03-10

    A method of embedding auxiliary information into the digital representation of host data created by a lossy compression technique is disclosed. The method applies to data compressed with lossy algorithms based on series expansion, quantization to a finite number of symbols, and entropy coding. Lossy compression methods represent the original data as integer indices having redundancy and uncertainty in value by one unit. Indices which are adjacent in value are manipulated to encode auxiliary data. By a substantially reverse process, the embedded auxiliary data can be retrieved easily by an authorized user. Lossy compression methods use loss-less compressions known also as entropy coding, to reduce to the final size the intermediate representation as indices. The efficiency of the compression entropy coding, known also as entropy coding is increased by manipulating the indices at the intermediate stage in the manner taught by the method. 11 figs.

  11. Compressed air | Open Energy Information

    Open Energy Info (EERE)

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

  12. Power plant including an exhaust gas recirculation system for injecting recirculated exhaust gases in the fuel and compressed air of a gas turbine engine

    DOE Patents [OSTI]

    Anand, Ashok Kumar; Nagarjuna Reddy, Thirumala Reddy; Shaffer, Jason Brian; York, William David

    2014-05-13

    A power plant is provided and includes a gas turbine engine having a combustor in which compressed gas and fuel are mixed and combusted, first and second supply lines respectively coupled to the combustor and respectively configured to supply the compressed gas and the fuel to the combustor and an exhaust gas recirculation (EGR) system to re-circulate exhaust gas produced by the gas turbine engine toward the combustor. The EGR system is coupled to the first and second supply lines and configured to combine first and second portions of the re-circulated exhaust gas with the compressed gas and the fuel at the first and second supply lines, respectively.

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

    SciTech Connect (OSTI)

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

    2012-04-01

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

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

    SciTech Connect (OSTI)

    Not Available

    2013-06-01

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

  15. Maintaining System Air Quality | Department of Energy

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

    Maintaining System Air Quality Maintaining System Air Quality This tip sheet discusses how to maintain air quality in compressed air systems through proper use of equipment. COMPRESSED AIR TIP SHEET #12 PDF icon Maintaining System Air Quality (August 2004) More Documents & Publications Remove Condensate with Minimal Air Loss Engineer End Uses for Maximum Efficiency Stabilizing System Pressure

  16. Air-To-Water Heat Pumps with Radiant Delivery in Low Load Homes, Tucson, Arizona and Chico, California (Fact Sheet), Building America Case Study: Technology Solutions for New and Existing Homes, Building Technologies Office (BTO)

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

    Air-to-Water Heat Pumps With Radiant Delivery in Low Load Homes Tucson, Arizona and Chico, California PROJECT INFORMATION Project Name: Field testing of air-to-water heat pump Location: Tucson, AZ and Chico, CA Partners: La Mirada Homes www.lamiradahomes.net Chico Green Builders Daikin www.daikinac.com ARBI http://arbi.davisenergy.com/ Building Component: HVAC, domestic hot water Application: New, single family Year Tested: 2011-2012 Applicable Climate Zones: Hot-dry, cold PERFORMANCE DATA Cost

  17. Building America Top Innovations 2014 Profile: ASHRAE Standard 62.2. Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings

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

    DOE goals call for zero energy ready homes that are 50% more efficient than the 2009 IECC and whole-house retrofits that reduce energy use 25% in existing homes by 2025. By specifying minimum ventilation rates, ASHRAE 62.2 is a critical enabling innovation that will contribute to DOE's long-term goal of saving the nation $2.2 trillion in energy-related costs through a 50% reduction in building energy consumption. BUILDING AMERICA TOP INNOVATIONS 2014 PROFILE Building America research and support

  18. Building America Case Study: Evaluating Through-Wall Air Transfer Fans, Pittsburgh, Pennsylvania (Fact Sheet), Whole-House Solutions for New Homes, Energy Efficiency & Renewable Energy (EERE)

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

    WHOLE-HOUSE SOLUTIONS FOR NEW HOMES ª ª ª ª ª Building America Case Study Evaluating Through-Wall Air Transfer Fans Pittsburgh, Pennsylvania PROJECT INFORMATION Project Name: Evaluating Through-Wall Air Transfer Fans Location: Pittsburgh, PA Construction: New Type: Single-family Partners: S&A Homes; sahomebuilder.com IBACOS; ibacos.com Size: 2,772 ft 2 Price Range: About $400,000 Date Completed: 2010 Applicable Climate Zone(s): Cold PERFORMANCE DATA HERS index: 27 Builder standard

  19. Compressed gas fuel storage system

    DOE Patents [OSTI]

    Wozniak, John J. (Columbia, MD); Tiller, Dale B. (Lincoln, NE); Wienhold, Paul D. (Baltimore, MD); Hildebrand, Richard J. (Edgemere, MD)

    2001-01-01

    A compressed gas vehicle fuel storage system comprised of a plurality of compressed gas pressure cells supported by shock-absorbing foam positioned within a shape-conforming container. The container is dimensioned relative to the compressed gas pressure cells whereby a radial air gap surrounds each compressed gas pressure cell. The radial air gap allows pressure-induced expansion of the pressure cells without resulting in the application of pressure to adjacent pressure cells or physical pressure to the container. The pressure cells are interconnected by a gas control assembly including a thermally activated pressure relief device, a manual safety shut-off valve, and means for connecting the fuel storage system to a vehicle power source and a refueling adapter. The gas control assembly is enclosed by a protective cover attached to the container. The system is attached to the vehicle with straps to enable the chassis to deform as intended in a high-speed collision.

  20. System and method for pre-cooling of buildings

    DOE Patents [OSTI]

    Springer, David A.; Rainer, Leo I.

    2011-08-09

    A method for nighttime pre-cooling of a building comprising inputting one or more user settings, lowering the indoor temperature reading of the building during nighttime by operating an outside air ventilation system followed, if necessary, by a vapor compression cooling system. The method provides for nighttime pre-cooling of a building that maintains indoor temperatures within a comfort range based on the user input settings, calculated operational settings, and predictions of indoor and outdoor temperature trends for a future period of time such as the next day.

  1. Humidity-dependent compression-induced glass transition of the airwater interfacial Langmuir films of poly(D,L-lactic acid-ran-glycolic acid) (PLGA)

    SciTech Connect (OSTI)

    Kim, Hyun Chang; Lee, Hoyoung; Jung, Hyunjung; Choi, Yun -Hwa; Meron, Mati; Lin, Binhua; Bang, Joona; Won, You -Yeon

    2015-08-26

    Constant rate compression isotherms of the airwater interfacial Langmuir films of poly(D,L-lactic acid-ran-glycolic acid) (PLGA)show a distinct feature of an exponential increase in surface pressure in the high surface polymer concentration regime. We have previously demonstrated that this abrupt increase in surface pressure is linked to the glass transition of the polymer film, but the detailed mechanism of this process is not understood. In order to obtain a molecular-level understanding of this behavior, we performed extensive characterizations of the surface mechanical, structural and rheological properties of Langmuir PLGA films at the airwater interface, using combined experimental techniques including the Langmuir film balance, X-ray reflectivity and double-wall-ring interfacial rheometry methods.

  2. Building America Top Innovations 2014 Profile: ASHRAE Standard 62.2. Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings

    SciTech Connect (OSTI)

    none,

    2014-11-01

    This 2014 Top Innovations profile describes Building America research and support in developing and gaining adoption of ASHRAE 62.2, a residential ventilation standard that is critical to transforming the U.S. housing industry to high-performance homes.

  3. Buildings*","Buildings

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

    Water-Heating Energy Sources, Number of Buildings for Non-Mall Buildings, 2003" ,"Number of Buildings (thousand)" ,"All Buildings*","Buildings with Water Heating","Water-Heating ...

  4. Passive Room-to-Room Air Transfer, Fresno, California (Fact Sheet), Building America Case Study: Whole-House Solutions for Existing Homes, Building Technologies Office (BTO)

    Energy Savers [EERE]

    Passive Room-to-Room Air Transfer Fresno, California PROJECT INFORMATION Construction: Retrofit Type: Single-family Builder: GreenEarthEquities (retrofit); http://greenearthequities.com/ Size: 1,621 ft 2 Price range: About $140,000 Date completed: 2011 Climate zone: Mixed-dry PERFORMANCE DATA HERS index: Not available Builder standard practice: Not available Case study house: 1,621 ft 2 With renewables: Not applicable Without renewables: 50.1% Projected annual energy cost savings: Not available

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

    SciTech Connect (OSTI)

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

    2006-10-01

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

  6. Remove Condensate with Minimal Air Loss | Department of Energy

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

    Remove Condensate with Minimal Air Loss Remove Condensate with Minimal Air Loss This tip sheet outlines several condensate removal methods as part of maintaining compressed air ...

  7. A simplified model for estimating population-scale energy impacts of building envelope air-tightening and mechanical ventilation retrofits

    SciTech Connect (OSTI)

    Logue, J. M.; Turner, W. J.N.; Walker, I. S.; Singer, B. C.

    2015-07-01

    Changing the air exchange rate of a home (the sum of the infiltration and mechanical ventilation airflow rates) affects the annual thermal conditioning energy. Large-scale changes to air exchange rates of the housing stock can significantly alter the residential sector’s energy consumption. However, the complexity of existing residential energy models is a barrier to the accurate quantification of the impact of policy changes on a state or national level.

  8. Building America Top Innovations Hall of Fame Profile … Thermal Bypass Air Barriers in the 2009 International Energy Conservation Code

    Energy Savers [EERE]

    effectively demonstrated the importance of thermal bypass air barriers, which led to their inclusion in ENERGY STAR for Homes Version 3 specifications in 2006 and then to inclusion in the 2009 IECC. This is a great example of effective research driving a complete market transformation process for a critical high-performance home innovation. Air sealing of the home's thermal enclosure has been required by the energy code for many years. However, in years past, the provisions were somewhat vague

  9. Building America Top Innovations Hall of Fame Profile … Thermal Bypass Air Barriers in the 2009 International Energy Conservation Code

    Energy Savers [EERE]

    effectively demonstrated the importance of thermal bypass air barriers, which led to their inclusion in ENERGY STAR for Homes Version 2 specifications in 2006 and then to inclusion in the 2009 IECC. This is a great example of effective research driving a complete market transformation process for a critical high-performance home innovation. Air sealing of the home's thermal enclosure has been required by the energy code for many years. However, in years past, the provisions were somewhat vague

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

    Energy Savers [EERE]

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

  11. Rotary Vapor Compression Cycle Technology: A Pathway to Ultra...

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

    Heating and Refrigeration Rotary Vapor Compression Cycle Technology: A Pathway to Ultra-Efficient Air Conditioning, Heating and Refrigeration Lead Performer: Sandia ...

  12. A simplified model for estimating population-scale energy impacts of building envelope air-tightening and mechanical ventilation retrofits

    SciTech Connect (OSTI)

    Logue, Jennifer M.; Turner, William J. N.; Walker, Iain S.; Singer, Brett C.

    2015-01-19

    Changing the air exchange rate of a home (the sum of the infiltration and mechanical ventilation airflow rates) affects the annual thermal conditioning energy. Large-scale changes to air exchange rates of the housing stock can significantly alter the residential sector's energy consumption. However, the complexity of existing residential energy models is a barrier to the accurate quantification of the impact of policy changes on a state or national level. The Incremental Ventilation Energy (IVE) model developed in this study combines the output of simple air exchange models with a limited set of housing characteristics to estimate the associated change in energy demand of homes. The IVE model was designed specifically to enable modellers to use existing databases of housing characteristics to determine the impact of ventilation policy change on a population scale. The IVE model estimates of energy change when applied to US homes with limited parameterisation are shown to be comparable to the estimates of a well-validated, complex residential energy model.

  13. Maintaining System Air Quality; Industrial Technologies Program...

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

    If stuck closed, they will not remove condensate, if stuck open, they will leak air. See Compressed Air Tip Sheet 13, Remove Condensate With Minimal Air Loss. References From ...

  14. Building America Update - June 11, 2015 | Department of Energy

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

    ... improving indoor air quality and health through better building codes and product standards. Building America in the News (industry trade articles) Here are recent Building ...

  15. Buildings and Energy in the 1980's (TABLES)

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

    in Residential Buildings, 1984 End Uses RSE Row Fac- tors All End Uses Space Heating Water Heating Air Conditioning Appliances Building Characteristics Buildings (thou- sand)...

  16. Buildings and Energy in the 1980's (TABLES)

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

    in Residential Buildings, 1987 End Uses RSE Row Fac- tors All End Uses Space Heating Water Heating Air Conditioning Appliances Building Characteristics Buildings (thou- sand)...

  17. 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.

    1997-02-01

    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.

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

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

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

  19. Buildings*","Buildings

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

    ... "Buildings with Cooling ......",3625,3469,1188,1794,161,52 "Buildings with Water Heating .",3472,3337,999,1765,226,57 "Buildings with Cooking ......",801,764,223,397,68,8 ...

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

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

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

  1. Buildings","Building Size"

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

    ... Cooling ......",58474,4879,6212,9530,8116,9401,7609,6345,6382 "Buildings with Water Heating .",56115,4280,5748,9000,8088,8887,7527,6258,6327 "Buildings with Cooking ...

  2. Analyzing Your Compressed Air System; Industrial Technologies...

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

    ... Recalculate energy use and costs. 5. Walk through to check for obvious preventive maintenance items and other opportunities to reduce costs and improve performance. 6. Identify and ...

  3. Preventive Maintenance Strategies for Compressed Air Systems...

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

    ... renewable energy, and pollution prevention technologies for industrial applications. ... paying attention to changes and trends, and responding promptly to maintain ...

  4. Compressed Air Best Practices Tools Overview

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

    David McCulloch, Mac Consulting Services Frank Moskowitz, Draw Professional Services Ross Orr, Scales Industrial Technologies I Wayne Perry, Kaeser Corporation Bill Scales, Scales ...

  5. Conducting fiber compression tester

    DOE Patents [OSTI]

    DeTeresa, Steven J. (Livermore, CA)

    1990-01-01

    The invention measures the resistance across a conductive fiber attached to a substrate place under a compressive load to determine the amount of compression needed to cause the fiber to fail.

  6. Microbunching and RF Compression

    SciTech Connect (OSTI)

    Venturini, M.; Migliorati, M.; Ronsivalle, C.; Ferrario, M.; Vaccarezza, C.

    2010-05-23

    Velocity bunching (or RF compression) represents a promising technique complementary to magnetic compression to achieve the high peak current required in the linac drivers for FELs. Here we report on recent progress aimed at characterizing the RF compression from the point of view of the microbunching instability. We emphasize the development of a linear theory for the gain function of the instability and its validation against macroparticle simulations that represents a useful tool in the evaluation of the compression schemes for FEL sources.

  7. Compressed gas manifold

    DOE Patents [OSTI]

    Hildebrand, Richard J. (Edgemere, MD); Wozniak, John J. (Columbia, MD)

    2001-01-01

    A compressed gas storage cell interconnecting manifold including a thermally activated pressure relief device, a manual safety shut-off valve, and a port for connecting the compressed gas storage cells to a motor vehicle power source and to a refueling adapter. The manifold is mechanically and pneumatically connected to a compressed gas storage cell by a bolt including a gas passage therein.

  8. Balancing energy conservation and occupant needs in ventilation rate standards for Big Box stores and other commercial buildings in California. Issues related to the ASHRAE 62.1 Indoor Air Quality Procedure

    SciTech Connect (OSTI)

    Mendell, Mark J.; Apte, Mike G.

    2010-10-31

    This report considers the question of whether the California Energy Commission should incorporate the ASHRAE 62.1 ventilation standard into the Title 24 ventilation rate (VR) standards, thus allowing buildings to follow the Indoor Air Quality Procedure. This, in contrast to the current prescriptive standard, allows the option of using ventilation rate as one of several strategies, which might include source reduction and air cleaning, to meet specified targets of indoor air concentrations and occupant acceptability. The research findings reviewed in this report suggest that a revised approach to a ventilation standard for commercial buildings is necessary, because the current prescriptive ASHRAE 62.1 Ventilation Rate Procedure (VRP) apparently does not provide occupants with either sufficiently acceptable or sufficiently healthprotective air quality. One possible solution would be a dramatic increase in the minimum ventilation rates (VRs) prescribed by a VRP. This solution, however, is not feasible for at least three reasons: the current need to reduce energy use rather than increase it further, the problem of polluted outdoor air in many cities, and the apparent limited ability of increasing VRs to reduce all indoor airborne contaminants of concern (per Hodgson (2003)). Any feasible solution is thus likely to include methods of pollutant reduction other than increased outdoor air ventilation; e.g., source reduction or air cleaning. The alternative 62.1 Indoor Air Quality Procedure (IAQP) offers multiple possible benefits in this direction over the VRP, but seems too limited by insufficient specifications and inadequate available data to provide adequate protection for occupants. Ventilation system designers rarely choose to use it, finding it too arbitrary and requiring use of much non-engineering judgment and information that is not readily available. This report suggests strategies to revise the current ASHRAE IAQP to reduce its current limitations. These strategies, however, would make it more complex and more prescriptive, and would require substantial research. One practical intermediate strategy to save energy would be an alternate VRP, allowing VRs lower than currently prescribed, as long as indoor VOC concentrations were no higher than with VRs prescribed under the current VRP. This kind of hybrid, with source reduction and use of air cleaning optional but permitted, could eventually evolve, as data, materials, and air-cleaning technology allowed gradual lowering of allowable concentrations, into a fully developed IAQP. Ultimately, it seems that VR standards must evolve to resemble the IAQP, especially in California, where buildings must achieve zero net energy use within 20 years.

  9. Sustainable Federal Buildings and Campuses | Department of Energy

    Energy Savers [EERE]

    Sustainable Federal Buildings and Campuses Sustainable Federal Buildings and Campuses An air-intake structure outside this high-performance federal building lowers energy costs by taking in chilly night air to cool the building's data center. An air-intake structure outside this high-performance federal building lowers energy costs by taking in chilly night air to cool the building's data center. The Federal Energy Management Program provides strategies, best practices, and resources to help

  10. Sustainable Federal Buildings and Campuses | Department of Energy

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

    Facilities » Sustainable Federal Buildings and Campuses Sustainable Federal Buildings and Campuses An air-intake structure outside this high-performance federal building lowers energy costs by taking in chilly night air to cool the building's data center. An air-intake structure outside this high-performance federal building lowers energy costs by taking in chilly night air to cool the building's data center. The Federal Energy Management Program provides strategies, best practices, and

  11. A Post-Occupancy Monitored Evaluation of the Dimmable Lighting, Automated Shading, and Underfloor Air Distribution System in The New York Times Building

    SciTech Connect (OSTI)

    Lee, E. S.; Fernandes, L. L.; Coffey, B.; McNeil, A.; Clear, R.; Webster, T.; Bauman, F.; Dickerhoff, D.; Heinzerling, D.; Hoyt, T.

    2013-01-01

    With aggressive goals to reduce national energy use and carbon emissions, the U.S. Department of Energy (DOE) will be looking to exemplary buildings that have already invested in new approaches to achieving the energy performance goals now needed at a national level. The New York Times Building, in New York, New York, incorporates a number of innovative technologies, systems and processes and could become model for widespread replication in new and existing buildings. A year-long monitored study was conducted to verify energy performance, assess occupant comfort and satisfaction with the indoor environment, and evaluate impact on maintenance and operations. Lessons learned were derived from the analysis; these lessons could help identify and shape policy, financial, or supporting strategies to accelerate diffusion in the commercial building market.

  12. Controlling And Operating Homogeneous Charge Compression Ignition (Hcci) Engines

    DOE Patents [OSTI]

    Flowers, Daniel L. (San Leandro, CA)

    2005-08-02

    A Homogeneous Charge Compression Ignition (HCCI) engine system includes an engine that produces exhaust gas. A vaporization means vaporizes fuel for the engine an air induction means provides air for the engine. An exhaust gas recirculation means recirculates the exhaust gas. A blending means blends the vaporized fuel, the exhaust gas, and the air. An induction means inducts the blended vaporized fuel, exhaust gas, and air into the engine. A control means controls the blending of the vaporized fuel, the exhaust gas, and the air and for controls the inducting the blended vaporized fuel, exhaust gas, and air into the engine.

  13. Building America Solution Center | Department of Energy

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

    Building America Solution Center Building America Solution Center World-Class Research At Your Fingertips The Building America Solution Center provides residential building professionals with access to expert information on hundreds of high-performance design and construction topics, including air sealing and insulation, HVAC components, windows, indoor air quality, and much more. Explore the Building America Solution Center. The user-friendly interface delivers a variety of resources for each

  14. Buildings and Energy in the 1980's (TABLES)

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

    1982 End Uses RSE Row Fac- tors All End Uses Space Heating Water Heating Air Conditioning Appliances Building Characteristics Buildings (thou- sand) Consump- tion...

  15. Buildings and Energy in the 1980's (TABLES)

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

    1980 End Uses RSE Row Fac- tors All End Uses Space Heating Water Heating Air Conditioning Appliances Building Characteristics Buildings (thou- sand) Consump- tion...

  16. Buildings and Energy in the 1980's (TABLES)

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

    1981 End Uses RSE Row Fac- tors All End Uses Space Heating Water Heating Air Conditioning Appliances Building Characteristics Buildings (thou- sand) Consump- tion...

  17. Building America Technology Solutions for New and Existing Homes...

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

    Building America Whole-House Solutions for New Homes: Challenges of Achieving 2012 IECC Air Sealing Requirements in Multifamily Dwellings, Upstate New York Building America ...

  18. Compressible Astrophysics Simulation Code

    Energy Science and Technology Software Center (OSTI)

    2007-07-18

    This is an astrophysics simulation code involving a radiation diffusion module developed at LLNL coupled to compressible hydrodynamics and adaptive mesh infrastructure developed at LBNL. One intended application is to neutrino diffusion in core collapse supernovae.

  19. Image compression technique

    DOE Patents [OSTI]

    Fu, C.Y.; Petrich, L.I.

    1997-03-25

    An image is compressed by identifying edge pixels of the image; creating a filled edge array of pixels each of the pixels in the filled edge array which corresponds to an edge pixel having a value equal to the value of a pixel of the image array selected in response to the edge pixel, and each of the pixels in the filled edge array which does not correspond to an edge pixel having a value which is a weighted average of the values of surrounding pixels in the filled edge array which do correspond to edge pixels; and subtracting the filled edge array from the image array to create a difference array. The edge file and the difference array are then separately compressed and transmitted or stored. The original image is later reconstructed by creating a preliminary array in response to the received edge file, and adding the preliminary array to the received difference array. Filling is accomplished by solving Laplace`s equation using a multi-grid technique. Contour and difference file coding techniques also are described. The techniques can be used in a method for processing a plurality of images by selecting a respective compression approach for each image, compressing each of the images according to the compression approach selected, and transmitting each of the images as compressed, in correspondence with an indication of the approach selected for the image. 16 figs.

  20. Image compression technique

    DOE Patents [OSTI]

    Fu, Chi-Yung (San Francisco, CA); Petrich, Loren I. (Livermore, CA)

    1997-01-01

    An image is compressed by identifying edge pixels of the image; creating a filled edge array of pixels each of the pixels in the filled edge array which corresponds to an edge pixel having a value equal to the value of a pixel of the image array selected in response to the edge pixel, and each of the pixels in the filled edge array which does not correspond to an edge pixel having a value which is a weighted average of the values of surrounding pixels in the filled edge array which do correspond to edge pixels; and subtracting the filled edge array from the image array to create a difference array. The edge file and the difference array are then separately compressed and transmitted or stored. The original image is later reconstructed by creating a preliminary array in response to the received edge file, and adding the preliminary array to the received difference array. Filling is accomplished by solving Laplace's equation using a multi-grid technique. Contour and difference file coding techniques also are described. The techniques can be used in a method for processing a plurality of images by selecting a respective compression approach for each image, compressing each of the images according to the compression approach selected, and transmitting each of the images as compressed, in correspondence with an indication of the approach selected for the image.

  1. Industrial Buildings

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

    Industrial Industrial Manufacturing Buildings Industrialmanufacturing buildings are not considered commercial, but are covered by the Manufacturing Energy Consumption Survey...

  2. Shock compression of liquid hydrazine

    SciTech Connect (OSTI)

    Garcia, B.O.; Chavez, D.J.

    1995-01-01

    Liquid hydrazine (N{sub 2}H{sub 4}) is a propellant used by the Air Force and NASA for aerospace propulsion and power systems. Because the propellant modules that contain the hydrazine can be subject to debris impacts during their use, the shock states that can occur in the hydrazine need to be characterized to safely predict its response. Several shock compression experiments have been conducted in an attempt to investigate the detonability of liquid hydrazine; however, the experiments results disagree. Therefore, in this study, we reproduced each experiment numerically to evaluate in detail the shock wave profiles generated in the liquid hydrazine. This paper presents the results of each numerical simulation and compares the results to those obtained in experiment. We also present the methodology of our approach, which includes chemical kinetic experiments, chemical equilibrium calculations, and characterization of the equation of state of liquid hydrazine.

  3. Compression molding of aerogel microspheres

    DOE Patents [OSTI]

    Pekala, Richard W. (Pleasant Hill, CA); Hrubesh, Lawrence W. (Pleasanton, CA)

    1998-03-24

    An aerogel composite material produced by compression molding of aerogel microspheres (powders) mixed together with a small percentage of polymer binder to form monolithic shapes in a cost-effective manner. The aerogel composites are formed by mixing aerogel microspheres with a polymer binder, placing the mixture in a mold and heating under pressure, which results in a composite with a density of 50-800 kg/m.sup.3 (0.05-0.80 g/cc). The thermal conductivity of the thus formed aerogel composite is below that of air, but higher than the thermal conductivity of monolithic aerogels. The resulting aerogel composites are attractive for applications such as thermal insulation since fabrication thereof does not require large and expensive processing equipment. In addition to thermal insulation, the aerogel composites may be utilized for filtration, ICF target, double layer capacitors, and capacitive deionization.

  4. Compression molding of aerogel microspheres

    DOE Patents [OSTI]

    Pekala, R.W.; Hrubesh, L.W.

    1998-03-24

    An aerogel composite material produced by compression molding of aerogel microspheres (powders) mixed together with a small percentage of polymer binder to form monolithic shapes in a cost-effective manner is disclosed. The aerogel composites are formed by mixing aerogel microspheres with a polymer binder, placing the mixture in a mold and heating under pressure, which results in a composite with a density of 50--800 kg/m{sup 3} (0.05--0.80 g/cc). The thermal conductivity of the thus formed aerogel composite is below that of air, but higher than the thermal conductivity of monolithic aerogels. The resulting aerogel composites are attractive for applications such as thermal insulation since fabrication thereof does not require large and expensive processing equipment. In addition to thermal insulation, the aerogel composites may be utilized for filtration, ICF target, double layer capacitors, and capacitive deionization. 4 figs.

  5. Energy Department Invests $6 Million to Support Commercial Building...

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

    will retrofit building ventilation systems with modules that remove indoor air pollutants such as carbon dioxide. This enables the indoor air to be recycled while greatly...

  6. Building America Technology Solutions for New and Existing Homes...

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

    Air Conditioner Installation for Efficiency and Comfort (Fact Sheet) Building America Technology Solutions for New and Existing Homes: A Homeowner's Guide to Window Air...

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

    SciTech Connect (OSTI)

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

    1998-01-01

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

  8. Combined rankine and vapor compression cycles

    DOE Patents [OSTI]

    Radcliff, Thomas D.; Biederman, Bruce P.; Brasz, Joost J.

    2005-04-19

    An organic rankine cycle system is combined with a vapor compression cycle system with the turbine generator of the organic rankine cycle generating the power necessary to operate the motor of the refrigerant compressor. The vapor compression cycle is applied with its evaporator cooling the inlet air into a gas turbine, and the organic rankine cycle is applied to receive heat from a gas turbine exhaust to heat its boiler within one embodiment, a common condenser is used for the organic rankine cycle and the vapor compression cycle, with a common refrigerant, R-245a being circulated within both systems. In another embodiment, the turbine driven generator has a common shaft connected to the compressor to thereby eliminate the need for a separate motor to drive the compressor. In another embodiment, an organic rankine cycle system is applied to an internal combustion engine to cool the fluids thereof, and the turbo charged air is cooled first by the organic rankine cycle system and then by an air conditioner prior to passing into the intake of the engine.

  9. Air-Source Heat Pump Basics | Department of Energy

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

    Basics Air-Source Heat Pump Basics August 19, 2013 - 11:03am Addthis Air-source heat pumps transfer heat between the inside of a building and the outside air. How Air-Source...

  10. Thermal Bypass Air Barriers in the 2009 International Energy Conservation

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

    Code - Building America Top Innovation | Department of Energy Thermal Bypass Air Barriers in the 2009 International Energy Conservation Code - Building America Top Innovation Thermal Bypass Air Barriers in the 2009 International Energy Conservation Code - Building America Top Innovation Image of a San Antonio home. Since air leakage is so critical to home performance, Building America research consistently focused on promoting better air sealing and air barrier details, including field

  11. History of Air Conditioning

    Broader source: Energy.gov [DOE]

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

  12. Isentropic Compression of Argon

    SciTech Connect (OSTI)

    H. Oona; J.C. Solem; L.R. Veeser, C.A. Ekdahl; P.J. Rodriquez; S.M. Younger; W. Lewis; W.D. Turley

    1997-08-01

    We are studying the transition of argon from an insulator to a conductor by compressing the frozen gas isentropically to pressures at which neighboring atomic orbitals overlap sufficiently to allow some electron motion between atoms. Argon and the other rare gases have closed electron shells and therefore remain montomic, even when they solidify. Their simple structure makes it likely that any measured change in conductivity is due to changes in the atomic structure, not in molecular configuration. As the crystal is compressed the band gap closes, allowing increased conductivity. We have begun research to determine the conductivity at high pressures, and it is our intention to determine the compression at which the crystal becomes a metal.

  13. Variable valve timing in a homogenous charge compression ignition engine

    DOE Patents [OSTI]

    Lawrence, Keith E.; Faletti, James J.; Funke, Steven J.; Maloney, Ronald P.

    2004-08-03

    The present invention relates generally to the field of homogenous charge compression ignition engines, in which fuel is injected when the cylinder piston is relatively close to the bottom dead center position for its compression stroke. The fuel mixes with air in the cylinder during the compression stroke to create a relatively lean homogeneous mixture that preferably ignites when the piston is relatively close to the top dead center position. However, if the ignition event occurs either earlier or later than desired, lowered performance, engine misfire, or even engine damage, can result. The present invention utilizes internal exhaust gas recirculation and/or compression ratio control to control the timing of ignition events and combustion duration in homogeneous charge compression ignition engines. Thus, at least one electro-hydraulic assist actuator is provided that is capable of mechanically engaging at least one cam actuated intake and/or exhaust valve.

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

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

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

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

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

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

  16. PROGRESS IN ENERGY EFFICIENT BUILDINGS

    SciTech Connect (OSTI)

    Wall, L.W.; Rosenfeld, A.H.

    1982-12-01

    Recent accomplishments in buildings energy research by the diverse groups in the Energy Efficient Buildings Program at Lawrence Berkeley Laboratory (LBL) are summarized. We review technological progress in the areas of ventilation and indoor air quality, buildings energy performance, computer modeling, windows, and artificial lighting. The need for actual consumption data to track accurately the improving energy efficiency of buildings is being addressed by the Buildings Energy Data (BED) Group at LBL. We summarize results to date from our Building Energy Use Compilation and Analysis (BECA) studies, which include time trends in the energy consumption of new commercial and new residential buildings, the measured savings being attained by both commercial and residential retrofits, and the cost-effectiveness of buildings energy conservation measures. We also examine recent comparisons of predicted vs. actual energy usage/savings, and present the case for building energy use labels.

  17. Buildings and Energy in the 1980s

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

    Air Conditioning: See Energy End Use, Cooling. Authorization Form: A form signed by the respondent authorizing energy supplier companies that serve the building to release...

  18. Building America Technologies Solutions Case Study: Ventilation...

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

    Technologies Solutions Case Study: Ventilation System Effectiveness and Tested Indoor Air Quality Impacts Building America Technologies Solutions Case Study: Ventilation System ...

  19. Building America Technology Solutions Case Study: Ventilation...

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

    Case Study: Ventilation System Effectiveness and Tested Indoor Air Quality Impacts Building America Technology Solutions Case Study: Ventilation System Effectiveness and Tested ...

  20. 1999 Commercial Buildings Characteristics--Cooling Equipment

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

    Buildings Energy Consumption Survey Packaged air conditioning units were the main cooling system for 20,504 million square feet of cooled floorspace, more than twice the...

  1. Air blast type coal slurry fuel injector

    DOE Patents [OSTI]

    Phatak, R.G.

    1984-08-31

    A device to atomize and inject a coal slurry in the combustion chamber of an internal combustion engine is disclosed which eliminates the use of a conventional fuel injection pump/nozzle. The injector involves the use of compressed air to atomize and inject the coal slurry and like fuels. In one embodiment, the breaking and atomization of the fuel is achieved with the help of perforated discs and compressed air. In another embodiment, a cone shaped aspirator is used to achieve the breaking and atomization of the fuel. The compressed air protects critical bearing areas of the injector.

  2. Air blast type coal slurry fuel injector

    DOE Patents [OSTI]

    Phatak, Ramkrishna G. (San Antonio, TX)

    1986-01-01

    A device to atomize and inject a coal slurry in the combustion chamber of an internal combustion engine, and which eliminates the use of a conventional fuel injection pump/nozzle. The injector involves the use of compressed air to atomize and inject the coal slurry and like fuels. In one embodiment, the breaking and atomization of the fuel is achieved with the help of perforated discs and compressed air. In another embodiment, a cone shaped aspirator is used to achieve the breaking and atomization of the fuel. The compressed air protects critical bearing areas of the injector.

  3. Homogenous charge compression ignition engine having a cylinder including a high compression space

    DOE Patents [OSTI]

    Agama, Jorge R.; Fiveland, Scott B.; Maloney, Ronald P.; Faletti, James J.; Clarke, John M.

    2003-12-30

    The present invention relates generally to the field of homogeneous charge compression engines. In these engines, fuel is injected upstream or directly into the cylinder when the power piston is relatively close to its bottom dead center position. The fuel mixes with air in the cylinder as the power piston advances to create a relatively lean homogeneous mixture that preferably ignites when the power piston is relatively close to the top dead center position. However, if the ignition event occurs either earlier or later than desired, lowered performance, engine misfire, or even engine damage, can result. Thus, the present invention divides the homogeneous charge between a controlled volume higher compression space and a lower compression space to better control the start of ignition.

  4. Mercantile Buildings

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

    Mercantile Characteristics by Activity... Mercantile Mercantile buildings are those used for the sale and display of goods other than food (buildings used for the sales of food are...

  5. Education Buildings

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

    Education Characteristics by Activity... Education Education buildings are buildings used for academic or technical classroom instruction, such as elementary, middle, or high...

  6. Better Buildings

    Broader source: Energy.gov [DOE]

    The Better Buildings Initiative aims to make commercial and industrial buildings 20% more energy efficient by 2020 and accelerate private sector investment in energy efficiency.

  7. Thermal Bypass Air Barriers in the 2009 International Energy...

    Energy Savers [EERE]

    Thermal Bypass Air Barriers in the 2009 International Energy Conservation Code - Building America Top Innovation Thermal Bypass Air Barriers in the 2009 International Energy ...

  8. ENERGY STAR Webinar: Energy Savings Plus Health: Indoor Air Quality...

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

    Energy Savings Plus Health: Indoor Air Quality Guidelines for School Building Upgrades ENERGY STAR Webinar: Energy Savings Plus Health: Indoor Air Quality Guidelines for School...

  9. Building America Webinar: High Performance Space Conditioning Systems, Part

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

    II - Air Distribution Retrofit Strategies for Affordable Housing | Department of Energy Air Distribution Retrofit Strategies for Affordable Housing Building America Webinar: High Performance Space Conditioning Systems, Part II - Air Distribution Retrofit Strategies for Affordable Housing Jordan Dentz, Advanced Residential Integrated Energy Solutions (ARIES), and Francis Conlin, High Performance Building Solutions, Inc., presenting Air Distribution Retrofit Strategies for Affordable Housing.

  10. Cold Climate and Retrofit Applications for Air-to-Air Heat Pumps

    SciTech Connect (OSTI)

    Baxter, Van D [ORNL

    2015-01-01

    Air source heat pumps (ASHP) including air-to-air ASHPs are easily applied to buildings almost anywhere for new construction as well as retrofits or renovations. They are widespread in milder climate regions but their use in cold regions is hampered due to low heating efficiency and capacity at cold outdoor temperatures. Retrofitting air-to-air ASHPs to existing buildings is relatively easy if the building already has an air distribution system. For buildings without such systems alternative approaches are necessary. Examples are ductless, minisplit heat pumps or central heat pumps coupled to small diameter, high velocity (SDHV) air distribution systems. This article presents two subjects: 1) a summary of R&D investigations aimed at improving the cold weather performance of ASHPs, and 2) a brief discussion of building retrofit options using air-to-air ASHP systems.

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

    DOE Patents [OSTI]

    North, William Edward (Winter Springs, FL)

    2000-01-01

    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.

  12. compressed-gas storage

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

    compressed-gas storage - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced

  13. homogeneous charge compression ignition

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

    homogeneous charge compression ignition - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management

  14. Building America Technology Solutions for New and Existing Homes: Selecting Ventilation Systems for Existing Homes

    Broader source: Energy.gov [DOE]

    This research effort by the Building America team, Consortium for Advanced Residential Buildings, evaluated four different strategies for provide make-up air to multifamily residential buildings, which included several weeks of building pressure monitoring.

  15. Method and apparatus for extracting water from air

    DOE Patents [OSTI]

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

    2002-01-01

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

  16. Method and apparatus for extracting water from air

    DOE Patents [OSTI]

    Spletzer, Barry L.

    2001-01-01

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

  17. High-Compression-Ratio; Atkinson-Cycle Engine Using Low-Pressure Direct Injection and Pneumatic-Electronic Valve Actuation Enabled by Ionization Current and Foward-Backward Mass Air Flow Sensor Feedback

    SciTech Connect (OSTI)

    Harold Schock; Farhad Jaberi; Ahmed Naguib; Guoming Zhu; David Hung

    2007-12-31

    This report describes the work completed over a two and one half year effort sponsored by the US Department of Energy. The goal was to demonstrate the technology needed to produce a highly efficient engine enabled by several technologies which were to be developed in the course of the work. The technologies included: (1) A low-pressure direct injection system; (2) A mass air flow sensor which would measure the net airflow into the engine on a per cycle basis; (3) A feedback control system enabled by measuring ionization current signals from the spark plug gap; and (4) An infinitely variable cam actuation system based on a pneumatic-hydraulic valve actuation These developments were supplemented by the use of advanced large eddy simulations as well as evaluations of fuel air mixing using the KIVA and WAVE models. The simulations were accompanied by experimental verification when possible. In this effort a solid base has been established for continued development of the advanced engine concepts originally proposed. Due to problems with the valve actuation system a complete demonstration of the engine concept originally proposed was not possible. Some of the highlights that were accomplished during this effort are: (1) A forward-backward mass air flow sensor has been developed and a patent application for the device has been submitted. We are optimistic that this technology will have a particular application in variable valve timing direct injection systems for IC engines. (2) The biggest effort on this project has involved the development of the pneumatic-hydraulic valve actuation system. This system was originally purchased from Cargine, a Swedish supplier and is in the development stage. To date we have not been able to use the actuators to control the exhaust valves, although the actuators have been successfully employed to control the intake valves. The reason for this is the additional complication associated with variable back pressure on the exhaust valves when they are opened. As a result of this effort, we have devised a new design and have filed for a patent on a method of control which is believed to overcome this problem. The engine we have been working with originally had a single camshaft which controlled both the intake and exhaust valves. Single cycle lift and timing control was demonstrated with this system. (3) Large eddy simulations and KIVA based simulations were used in conjunction with flow visualizations in an optical engine to study fuel air mixing. During this effort we have devised a metric for quantifying fuel distribution and it is described in several of our papers. (4) A control system has been developed to enable us to test the benefits of the various technologies. This system used is based on Opal-RT hardware and is being used in a current DOE sponsored program.

  18. Building America

    SciTech Connect (OSTI)

    Brad Oberg

    2010-12-31

    IBACOS researched the constructability and viability issues of using high performance windows as one component of a larger approach to building houses that achieve the Building America 70% energy savings target.

  19. Building technologies

    SciTech Connect (OSTI)

    Jackson, Roderick

    2014-07-14

    After growing up on construction sites, Roderick Jackson is now helping to make buildings nationwide far more energy efficient.

  20. Building technologies

    ScienceCinema (OSTI)

    Jackson, Roderick

    2014-07-15

    After growing up on construction sites, Roderick Jackson is now helping to make buildings nationwide far more energy efficient.

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

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

    (10) Apply Building Insulation filter Compressed air (10) Apply Compressed air filter Windows (10) Apply Windows filter Comprehensive MeasuresWhole Building (8) Apply...

  2. CNG and Fleets: Building Your Business Case

    SciTech Connect (OSTI)

    2015-09-01

    Two online resources help fleets evaluate the economic soundness of a compressed natural gas program. The National Renewable Energy Laboratory's (NREL's) Vehicle Infrastructure and Cash-Flow Evaluation (VICE 2.0) model and the accompanying report, Building a Business Case for Compressed Natural Gas in Fleet Applications, are uniquely designed for fleet managers considering an investment in CNG and can help ensure wise investment decisions about CNG vehicles and infrastructure.

  3. Beardmore Building

    High Performance Buildings Database

    Priest River, ID Originally built in 1922 by Charles Beardmore, the building housed offices, mercantile shops, a ballroom and a theater. After decades of neglect under outside ownership, Brian Runberg, an architect and great-grandson of Charles Beardmore, purchased the building in 2006 and began an extensive whole building historic restoration.

  4. Building America Technology Solutions Case Study: Design Guidance for

    Energy Savers [EERE]

    Passive Vents in New Construction, Multifamily Buildings | Department of Energy Design Guidance for Passive Vents in New Construction, Multifamily Buildings Building America Technology Solutions Case Study: Design Guidance for Passive Vents in New Construction, Multifamily Buildings In an effort to improve indoor air quality in high-performance, new construction, multifamily buildings, dedicated sources of outdoor air are being implemented. Passive vents are being selected by some design

  5. Magnetic compression laser driving circuit

    DOE Patents [OSTI]

    Ball, D.G.; Birx, D.; Cook, E.G.

    1993-01-05

    A magnetic compression laser driving circuit is disclosed. The magnetic compression laser driving circuit compresses voltage pulses in the range of 1.5 microseconds at 20 kilovolts of amplitude to pulses in the range of 40 nanoseconds and 60 kilovolts of amplitude. The magnetic compression laser driving circuit includes a multi-stage magnetic switch where the last stage includes a switch having at least two turns which has larger saturated inductance with less core material so that the efficiency of the circuit and hence the laser is increased.

  6. Magnetic compression laser driving circuit

    DOE Patents [OSTI]

    Ball, Don G. (Livermore, CA); Birx, Dan (Brentwood, CA); Cook, Edward G. (Livermore, CA)

    1993-01-01

    A magnetic compression laser driving circuit is disclosed. The magnetic compression laser driving circuit compresses voltage pulses in the range of 1.5 microseconds at 20 Kilovolts of amplitude to pulses in the range of 40 nanoseconds and 60 Kilovolts of amplitude. The magnetic compression laser driving circuit includes a multi-stage magnetic switch where the last stage includes a switch having at least two turns which has larger saturated inductance with less core material so that the efficiency of the circuit and hence the laser is increased.

  7. Exhaust gas recirculation in a homogeneous charge compression ignition engine

    DOE Patents [OSTI]

    Duffy, Kevin P. (Metamora, IL); Kieser, Andrew J. (Morton, IL); Rodman, Anthony (Chillicothe, IL); Liechty, Michael P. (Chillicothe, IL); Hergart, Carl-Anders (Peoria, IL); Hardy, William L. (Peoria, IL)

    2008-05-27

    A homogeneous charge compression ignition engine operates by injecting liquid fuel directly in a combustion chamber, and mixing the fuel with recirculated exhaust and fresh air through an auto ignition condition of the fuel. The engine includes at least one turbocharger for extracting energy from the engine exhaust and using that energy to boost intake pressure of recirculated exhaust gas and fresh air. Elevated proportions of exhaust gas recirculated to the engine are attained by throttling the fresh air inlet supply. These elevated exhaust gas recirculation rates allow the HCCI engine to be operated at higher speeds and loads rendering the HCCI engine a more viable alternative to a conventional diesel engine.

  8. Air Sealing for New Home Construction | Department of Energy

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

    » Air Sealing for New Home Construction Air Sealing for New Home Construction Air Sealing for New Home Construction Minimizing air movement in and out of a house is key to building an energy-efficient home. Controlling air leakage is also critical to moisture control. It's always best to use techniques and materials identified as best practices for your site and climate. Climate-specific construction details are available through Building America. Here are some general air sealing techniques

  9. Edge compression manifold apparatus

    SciTech Connect (OSTI)

    Renzi, Ronald F.

    2004-12-21

    A manifold for connecting external capillaries to the inlet and/or outlet ports of a microfluidic device for high pressure applications is provided. The fluid connector for coupling at least one fluid conduit to a corresponding port of a substrate that includes: (i) a manifold comprising one or more channels extending therethrough wherein each channel is at least partially threaded, (ii) one or more threaded ferrules each defining a bore extending therethrough with each ferrule supporting a fluid conduit wherein each ferrule is threaded into a channel of the manifold, (iii) a substrate having one or more ports on its upper surface wherein the substrate is positioned below the manifold so that the one or more ports is aligned with the one or more channels of the manifold, and (iv) device to apply an axial compressive force to the substrate to couple the one or more ports of the substrate to a corresponding proximal end of a fluid conduit.

  10. Edge compression manifold apparatus

    SciTech Connect (OSTI)

    Renzi, Ronald F.

    2007-02-27

    A manifold for connecting external capillaries to the inlet and/or outlet ports of a microfluidic device for high pressure applications is provided. The fluid connector for coupling at least one fluid conduit to a corresponding port of a substrate that includes: (i) a manifold comprising one or more channels extending therethrough wherein each channel is at least partially threaded, (ii) one or more threaded ferrules each defining a bore extending therethrough with each ferrule supporting a fluid conduit wherein each ferrule is threaded into a channel of the manifold, (iii) a substrate having one or more ports on its upper surface wherein the substrate is positioned below the manifold so that the one or more ports is aligned with the one or more channels of the manifold, and (iv) device to apply an axial compressive force to the substrate to couple the one or more ports of the substrate to a corresponding proximal end of a fluid conduit.

  11. Population attribute compression

    DOE Patents [OSTI]

    White, James M. (Los Alamos, NM); Faber, Vance (Los Alamos, NM); Saltzman, Jeffrey S. (Los Alamos, NM)

    1995-01-01

    An image population having a large number of attributes is processed to form a display population with a predetermined smaller number of attributes that represent the larger number of attributes. In a particular application, the color values in an image are compressed for storage in a discrete look-up table (LUT). Color space containing the LUT color values is successively subdivided into smaller volumes until a plurality of volumes are formed, each having no more than a preselected maximum number of color values. Image pixel color values can then be rapidly placed in a volume with only a relatively few LUT values from which a nearest neighbor is selected. Image color values are assigned 8 bit pointers to their closest LUT value whereby data processing requires only the 8 bit pointer value to provide 24 bit color values from the LUT.

  12. Buildings Energy Data Book

    Buildings Energy Data Book [EERE]

    5.5 : Thermal Distribution Systems 5.5.1 Market Share of Major HVAC Equipment Manufacturers ($2009 Million) Total Market Size Air-Handling Units 1032 Cooling Towers 533 Pumps 333 Central System Terminal Boxes 192 Classroom Unit Ventilator 160 Fan Coil Units 123 DOWNLOAD TABLE AS PDF XLS Related Tables: PDFXLS 5.5.6 1999 Energy Efficient Motors, Replacements and Sales, by Horsepower Class Sources: BTS/A.D. Little, Energy Consumption Characteristics of Commercial Building HVAC Systems, Volume II:

  13. Demonstration of the Whole-Building Diagnostician in a Single-Building Operator Environment

    SciTech Connect (OSTI)

    Katipamula, Srinivas; Bauman, Nathan N.; Pratt, Robert G.; Brambley, Michael R.

    2003-03-31

    This report on documents the results of the single-building-operator, on-line, demonstration of the Whole-Building Diagnostician, conducted at the Symphony Towers building in San Diego, California. The on-line test was designed to evaluate the Outdoor-Air Economizer (OAE) diagnostic modules capabilities to automatically and continually diagnose operational problems with air-handling units (AHUs). As part of this demonstration, all four AHUs at Symphony Towers were monitored. The measured data that were collected on a continuous basis included: 1) outdoor-air temperature, 2) return-air temperature, 3) mixed-air temperature, 4) supply-air temperature, 5) chilled-water valve position, 6) supply-fan status, 7) outdoor-air relative humidity, and 8) return-air relative humidity.

  14. Vacant Buildings

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

    Vacant Characteristics by Activity... Vacant Vacant buildings are those in which more floorspace was vacant than was used for any single commercial activity at the time of the...

  15. Service Buildings

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

    Service Characteristics by Activity... Service Service buildings are those in which some type of service is provided, other than food service or retail sales of goods. Basic...

  16. Other Buildings

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

    Other Characteristics by Activity... Other Other buildings are those that do not fit into any of the specifically named categories. Basic Characteristics See also: Equipment |...

  17. Buildings Database

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

    Energy Efficiency & Renewable Energy EERE Home | Programs & Offices | Consumer Information Buildings Database Welcome Guest Log In | Register | Contact Us Home About All Projects...

  18. R&D Strategies for Compressed, Cryo-Compressed and Cryo-Sorbent...

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

    R&D Strategies for Compressed, Cryo-Compressed and Cryo-Sorbent Hydrogen Storage Technologies Workshops R&D Strategies for Compressed, Cryo-Compressed and Cryo-Sorbent Hydrogen ...

  19. Compressive strength of concrete and mortar containing fly ash

    DOE Patents [OSTI]

    Liskowitz, John W. (Belle Mead, NJ); Wecharatana, Methi (Parsippany, NJ); Jaturapitakkul, Chai (Bangkok, TH); Cerkanowicz, deceased, Anthony E. (late of Livingston, NJ)

    1997-01-01

    The present invention relates to concrete, mortar and other hardenable mixtures comprising cement and fly ash for use in construction. The invention includes a method for predicting the compressive strength of such a hardenable mixture, which is very important for planning a project. The invention also relates to hardenable mixtures comprising cement and fly ash which can achieve greater compressive strength than hardenable mixtures containing only concrete over the time period relevant for construction. In a specific embodiment, a formula is provided that accurately predicts compressive strength of concrete containing fly ash out to 180 days. In other specific examples, concrete and mortar containing about 15% to 25% fly ash as a replacement for cement, which are capable of meeting design specifications required for building and highway construction, are provided. Such materials can thus significantly reduce construction costs.

  20. Compressive strength of concrete and mortar containing fly ash

    DOE Patents [OSTI]

    Liskowitz, John W. (Belle Mead, NJ); Wecharatana, Methi (Parsippany, NJ); Jaturapitakkul, Chai (Bangkok, TH); Cerkanowicz, deceased, Anthony E. (late of Livingston, NJ)

    1998-01-01

    The present invention relates to concrete, mortar and other hardenable mixtures comprising cement and fly ash for use in construction. The invention includes a method for predicting the compressive strength of such a hardenable mixture, which is very important for planning a project. The invention also relates to hardenable mixtures comprising cement and fly ash which can achieve greater compressive strength than hardenable mixtures containing only concrete over the time period relevant for construction. In a specific embodiment, a formula is provided that accurately predicts compressive strength of concrete containing fly ash out to 180 days. In other specific examples, concrete and mortar containing about 15% to 25% fly ash as a replacement for cement, which are capable of meeting design specification required for building and highway construction, are provided. Such materials can thus significantly reduce construction costs.

  1. Compressive strength of concrete and mortar containing fly ash

    DOE Patents [OSTI]

    Liskowitz, J.W.; Wecharatana, M.; Jaturapitakkul, C.; Cerkanowicz, A.E.

    1997-04-29

    The present invention relates to concrete, mortar and other hardenable mixtures comprising cement and fly ash for use in construction. The invention includes a method for predicting the compressive strength of such a hardenable mixture, which is very important for planning a project. The invention also relates to hardenable mixtures comprising cement and fly ash which can achieve greater compressive strength than hardenable mixtures containing only concrete over the time period relevant for construction. In a specific embodiment, a formula is provided that accurately predicts compressive strength of concrete containing fly ash out to 180 days. In other specific examples, concrete and mortar containing about 15% to 25% fly ash as a replacement for cement, which are capable of meeting design specifications required for building and highway construction, are provided. Such materials can thus significantly reduce construction costs. 33 figs.

  2. Compressive strength of concrete and mortar containing fly ash

    DOE Patents [OSTI]

    Liskowitz, J.W.; Wecharatana, M.; Jaturapitakkul, C.; Cerkanowicz, A.E.

    1998-12-29

    The present invention relates to concrete, mortar and other hardenable mixtures comprising cement and fly ash for use in construction. The invention includes a method for predicting the compressive strength of such a hardenable mixture, which is very important for planning a project. The invention also relates to hardenable mixtures comprising cement and fly ash which can achieve greater compressive strength than hardenable mixtures containing only concrete over the time period relevant for construction. In a specific embodiment, a formula is provided that accurately predicts compressive strength of concrete containing fly ash out to 180 days. In other specific examples, concrete and mortar containing about 15% to 25% fly ash as a replacement for cement, which are capable of meeting design specification required for building and highway construction, are provided. Such materials can thus significantly reduce construction costs. 33 figs.

  3. PFT Air Infiltration Measurement Technique | Department of Energy

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

    PFT Air Infiltration Measurement Technique PFT Air Infiltration Measurement Technique The Brookhaven National Laboratory developed the PFT (PerFluorocarbon tracer gas) technique to measure changes over time when determining a building's air-infiltration rate. The Brookhaven National Laboratory developed the PFT (PerFluorocarbon tracer gas) technique to measure changes over time when determining a building's air-infiltration rate. The airtightness of a building can be determined by using several

  4. DOE Commercial Building Energy Asset Score: Software Development for Phase

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

    II Building Types | Department of Energy Score: Software Development for Phase II Building Types DOE Commercial Building Energy Asset Score: Software Development for Phase II Building Types DOE Commercial Building Energy Asset Score: Software Development for Phase II Building Types PDF icon asset_score_assumptions_july_2013.pdf More Documents & Publications Weekend/Weekday Ozone Study in the South Coast Air Basin Users Perspective on Advanced Fuel Cell Bus Technology Tankless Gas Water

  5. Practical Integration Approach and Whole Building Energy Simulation of Three Energy Efficient Building Technologies: Preprint

    SciTech Connect (OSTI)

    Miller, J. P.; Zhivov, A.; Heron, D.; Deru, M.; Benne, K.

    2010-08-01

    Three technologies that have potential to save energy and improve sustainability of buildings are dedicated outdoor air systems, radiant heating and cooling systems and tighter building envelopes. To investigate the energy savings potential of these three technologies, whole building energy simulations were performed for a barracks facility and an administration facility in 15 U.S. climate zones and 16 international locations.

  6. Advances in compressible turbulent mixing

    SciTech Connect (OSTI)

    Dannevik, W.P.; Buckingham, A.C.; Leith, C.E.

    1992-01-01

    This volume includes some recent additions to original material prepared for the Princeton International Workshop on the Physics of Compressible Turbulent Mixing, held in 1988. Workshop participants were asked to emphasize the physics of the compressible mixing process rather than measurement techniques or computational methods. Actual experimental results and their meaning were given precedence over discussions of new diagnostic developments. Theoretical interpretations and understanding were stressed rather than the exposition of new analytical model developments or advances in numerical procedures. By design, compressibility influences on turbulent mixing were discussed--almost exclusively--from the perspective of supersonic flow field studies. The papers are arranged in three topical categories: Foundations, Vortical Domination, and Strongly Coupled Compressibility. The Foundations category is a collection of seminal studies that connect current study in compressible turbulent mixing with compressible, high-speed turbulent flow research that almost vanished about two decades ago. A number of contributions are included on flow instability initiation, evolution, and transition between the states of unstable flow onset through those descriptive of fully developed turbulence. The Vortical Domination category includes theoretical and experimental studies of coherent structures, vortex pairing, vortex-dynamics-influenced pressure focusing. In the Strongly Coupled Compressibility category the organizers included the high-speed turbulent flow investigations in which the interaction of shock waves could be considered an important source for production of new turbulence or for the enhancement of pre-existing turbulence. Individual papers are processed separately.

  7. A Guide to Building Commissioning

    SciTech Connect (OSTI)

    Baechler, Michael C.

    2011-09-01

    Commissioning is the process of verifying that a building's heating, ventilation, and air conditioning (HVAC) and lighting systems perform correctly and efficiently. Without commissioning, system and equipment problems can result in higher than necessary utility bills and unexpected and costly equipment repairs. This report reviews the benefits of commissioning, why it is a requirement for Leadership in Energy and Environmental Design (LEED) certification, and why building codes are gradually adopting commissioning activities into code.

  8. Recent development in green buildings

    SciTech Connect (OSTI)

    Mei, V.C.

    1996-12-31

    Because of the environmental concerns about some materials used in buildings, particularly chlorofluorocarbon (CFC) fluids used as the blowing agent for insulation materials and as refrigerants used in the air conditioning systems have led to a search for environmentally safe alternatives. For insulation materials, new non-CFC blowing agents are still under development. However, the old insulation materials in the buildings will stay because they do not pose any further environmental damage. It is a different story for refrigerants used in air conditioning systems. This study reports that the change-over from CFC to non-CFC refrigerants in the existing and future air conditioning equipment could be a chance not only to take care of the environmental concerns, but to save energy as well. Alternative air conditioning technologies, such as the desiccant dehumidification and absorption systems, and the potential of some natural substances, such as carbon dioxide, as the future refrigerants are also discussed.

  9. Spectroscopic Evidence for Negative Electronic Compressibility...

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

    Spectroscopic Evidence for Negative Electronic Compressibility in a Quasi-three-dimensional Spin-orbit Correlated Metal Tuesday, June 30, 2015 Negative compressibility is a sign of...

  10. Premix charge, compression ignition combustion system optimization...

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

    Premix charge, compression ignition combustion system optimization Premix charge, compression ignition combustion system optimization Presentation given at DEER 2006, August 20-24,...

  11. Building America Technologies Solutions Case Study: Ventilation System

    Energy Savers [EERE]

    Effectiveness and Tested Indoor Air Quality Impacts | Department of Energy Technologies Solutions Case Study: Ventilation System Effectiveness and Tested Indoor Air Quality Impacts Building America Technologies Solutions Case Study: Ventilation System Effectiveness and Tested Indoor Air Quality Impacts In this study, the Building America team Building Science Corporation tested the effectiveness of various ventilation systems at two unoccupied, single-family lab homes at the University of

  12. Air Quality

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

    Air Quality Air Quality To preserve our existing wilderness-area air quality, LANL implements a conscientious program of air monitoring. March 17, 2015 Real-time data monitoring for particulate matter An air monitoring field team member tests one of LANL's tapered element oscillating microbalance samplers, which collects real-time particulate matter data. Contact Environmental Communication & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email LANL monitors air

  13. Air Quality

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

    Air Quality Air Quality Tour The Laboratory calculates the dose to the maximally exposed individual (MEI) to determine effects of Laboratory operations on the public.

  14. Air Quality

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

    Air Quality Air Quality Tour The Laboratory calculates the dose to the maximally exposed individual (MEI) to determine effects of Laboratory operations on the public. Open full...

  15. Compressed/Liquid Hydrogen Tanks

    Broader source: Energy.gov [DOE]

    Currently, DOE's physical hydrogen storage R&D focuses on the development of high-pressure (10,000 psi) composite tanks, cryo-compressed tanks, conformable tanks, and other advanced concepts...

  16. Microsoft Word - Negative_compressibility

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

    compressibility (NEC) in a three dimensional spin-orbit correlated metal (Sr 1-x La x ) 3 Ir 2 O 7 , utilizing the high-resolution angle- resolved photoemission spectroscopy...

  17. Advanced Technologies and Practices - Building America Top Innovations |

    Energy Savers [EERE]

    Department of Energy Advanced Technologies and Practices - Building America Top Innovations Advanced Technologies and Practices - Building America Top Innovations July 16, 2014 - 4:04pm Addthis Advanced Technologies and Practices - Building America Top Innovations Top Innovations in this category encompass research in specific technologies and construction practices that improve the building envelope; heating, ventilation, and air conditioning (HVAC); water heating components; and indoor air

  18. Building America Whole-House Solutions for New Homes: Challenges...

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

    Dwellings, Upstate New York Building America Whole-House Solutions for New Homes: Challenges of Achieving 2012 IECC Air Sealing Requirements in Multifamily Dwellings, ...

  19. Building America Whole-House Solutions for Existing Homes: Passive...

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

    Fresno, California (Fact Sheet) In this project, IBACOS, a U.S. Department of Energy Building America team, assessed a strategy for providing conditioned air to bedrooms when...

  20. Building America Whole-House Solutions for New Homes: Evluating...

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

    Homes: Evluating Through-Wall Air Transfer Fans, Pittburgh, Pennsylvania In this project, Building America team IBACOS performed field testing in a new construction unoccupied test...

  1. Building America Whole-House Solutions for Existing Homes: Islip...

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

    Energy Efficient Manufactured Housing Program High-Performance Test Homes Building America Whole-House Solutions for Existing Homes: Passive Room-to-Room Air Transfer, Fresno...

  2. Building America Technology Solutions Case Study: Sealed Crawled...

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

    Building America Technology Solutions Case Study: Sealed Crawled Spaces with ... (CARB) investigated a hybrid ventilation method that included the exhaust air from the ...

  3. 1999 Commercial Buildings Characteristics--End-Use Equipment

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

    586-8800. Energy Information Administration Commercial Buildings Energy Consumption Survey Cooling Equipment Packaged air conditioning units were the predominant type of cooling...

  4. A New Generation of Building Insulation by Foaming Polymer Blend...

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

    cost) across a variety of thermal insulating applications, such as building foundations and walls, and refrigeration and heating, ventilation, and air conditioning applications. ...

  5. ASHRAE Standard 62.2. Ventilation and Acceptable Indoor Air Quality in Low-

    Energy Savers [EERE]

    Rise Residential Buildings - Building America Top Innovation | Department of Energy ASHRAE Standard 62.2. Ventilation and Acceptable Indoor Air Quality in Low- Rise Residential Buildings - Building America Top Innovation ASHRAE Standard 62.2. Ventilation and Acceptable Indoor Air Quality in Low- Rise Residential Buildings - Building America Top Innovation "Build tight, ventilate right" is a universal mantra of high performance home designers and scientists. Tight construction is

  6. Building Science

    Broader source: Energy.gov [DOE]

    This presentation was given at the Summer 2012 DOE Building America meeting on July 25, 2012, and addressed the question How do we first do no harm with high-r enclosures?Ž

  7. Lodging Buildings

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

    were then asked to place the building into the following more specific categories: a hotel a motel, inn, or resort a retirement home a shelter, orphanage, or children's home a...

  8. Office Buildings

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

    page, please call 202-586-8800. There were enough buildings in the responding sample to report statistics for all of these types except for research and development, which has...

  9. List of Compressed air Incentives | Open Energy Information

    Open Energy Info (EERE)

    Windows Biodiesel Daylighting Ethanol Geothermal Electric Ground Source Heat Pumps Methanol Photovoltaics Renewable Fuels Small Hydroelectric Solar Thermal Electric Solar...

  10. Healthy and Affordable Housing: Practical Recommendations for Building, Renovating and Maintaining Housing: Read This Before You Design, Build or Renovate

    SciTech Connect (OSTI)

    2001-09-06

    This document helps builders design, build, or renovate homes, keeping in mind the issues of asthma, health, indoor air quality, dust, and living creatures.

  11. Building America Residential Buildings Energy Efficiency Meeting...

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

    Buildings Energy Efficiency Meeting: July 2010 Building America Residential Buildings ... More Documents & Publications Summary of Gaps and Barriers for Implementing Residential ...

  12. Building America Expert Meeting: Transforming Existing Buildings...

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

    Transforming Existing Buildings through New Media--An Idea Exchange Building America Expert Meeting: Transforming Existing Buildings through New Media--An Idea Exchange This report...

  13. Building America Whole-House Solutions for Existing Homes: Passive

    Energy Savers [EERE]

    Room-to-Room Air Transfer, Fresno, California (Fact Sheet) | Department of Energy Whole-House Solutions for Existing Homes: Passive Room-to-Room Air Transfer, Fresno, California (Fact Sheet) Building America Whole-House Solutions for Existing Homes: Passive Room-to-Room Air Transfer, Fresno, California (Fact Sheet) In this project, IBACOS, a U.S. Department of Energy Building America team, assessed a strategy for providing conditioned air to bedrooms when the bedroom doors are closed and

  14. Carbon Nanothreads from Compressed Benzene | U.S. DOE Office of Science

    Office of Science (SC) Website

    (SC) Carbon Nanothreads from Compressed Benzene Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy Sciences Advisory Committee (BESAC) Community Resources Contact Information Basic Energy Sciences U.S. Department of Energy SC-22/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3081 F: (301) 903-6594 E: Email Us More Information » 04.01.15 Carbon Nanothreads from Compressed

  15. Archive Reference Buildings by Building Type: Warehouse

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the reference buildings for new construction commercial buildings, organized by building type and location. A summary of building types and climate zones is...

  16. Building America Case Study: Cost Analysis of Roof-Only Air Sealing and Insulation Strategies on 1-1/2 Story Homes in Cold Climates, Minneapolis, MN (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-12-01

    The External Thermal and Moisture Management System (ETMMS), typically seen in deep energy retrofits, is a valuable approach for the roof-only portions of existing homes, particularly the 1 1/2-story home. It is effective in reducing energy loss through the building envelope, improving building durability, reducing ice dams, and providing opportunities to improve occupant comfort and health.

  17. Energy efficient building structure and panel therefor

    SciTech Connect (OSTI)

    Carroll, Th.J.; Paisley, J.K.

    1984-08-28

    A building structure is constructed from a plurality of sheathed, foam cored structural panels which are adapted to receive solar energy conversion or heat storage devices and are adapted to be connected in an air flow loop to provide integral heating and/or cooling systems for the building structure.

  18. Compressive behavior of fine sand.

    SciTech Connect (OSTI)

    Martin, Bradley E.; Kabir, Md. E.; Song, Bo; Chen, Wayne

    2010-04-01

    The compressive mechanical response of fine sand is experimentally investigated. The strain rate, initial density, stress state, and moisture level are systematically varied. A Kolsky bar was modified to obtain uniaxial and triaxial compressive response at high strain rates. A controlled loading pulse allows the specimen to acquire stress equilibrium and constant strain-rates. The results show that the compressive response of the fine sand is not sensitive to strain rate under the loading conditions in this study, but significantly dependent on the moisture content, initial density and lateral confinement. Partially saturated sand is more compliant than dry sand. Similar trends were reported in the quasi-static regime for experiments conducted at comparable specimen conditions. The sand becomes stiffer as initial density and/or confinement pressure increases. The sand particle size become smaller after hydrostatic pressure and further smaller after dynamic axial loading.

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

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

    Air conditioners, Compressed air, Programmable Thermostats, Energy Mgmt. SystemsBuilding Controls, CaulkingWeather-stripping, DuctAir sealing, Building Insulation, Motors,...

  20. Unvented, Conditioned Crawlspaces - Building America Top Innovation |

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

    Department of Energy Unvented, Conditioned Crawlspaces - Building America Top Innovation Unvented, Conditioned Crawlspaces - Building America Top Innovation This photo shows the interior of a framed crawlspace with insulation installed. This Top Innovation profile highlights Building America research into the benefits of closed, conditioned crawlspaces over traditional vented crawlspaces. Crawlspace vents are supposed to prevent moisture problems, based on the assumption that fresh air

  1. Vapor Retarder Classification - Building America Top Innovation |

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

    Department of Energy Vapor Retarder Classification - Building America Top Innovation Vapor Retarder Classification - Building America Top Innovation Photo of a vapor retarder classification. Air-tight and well-insulated homes have little or no tolerance for drying if they get wet; moisture control is critical. This Top Innovation profile describes Building America research that established vapor retarder classifications and appropriate applications that has been instrumental in the market

  2. Building America Update - July 2013 | Department of Energy

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

    July 2013 Building America Update - July 2013 Here you can link to the July 2013 edition of the Building America Update, which features articles on: Building America track at EEBA conference Technology Solution: Homeowners' Guide to Window Air Conditioner Installation Deadline extension for Housing Innovation Awards DOE Challenge Home trainings New publications PDF icon building_america_update_july2013.pdf More Documents & Publications Building America Update - August 2013 DOE Challenge Home

  3. Commercial Building Partnership

    Broader source: Energy.gov [DOE]

    Commercial Buildings Integration Project for the 2013 Building Technologies Office's Program Peer Review

  4. Energy Efficient Buildings Hub

    SciTech Connect (OSTI)

    2013-04-01

    Energy Efficient Buildings HUB Lunch Presentation for the 2013 Building Technologies Office's Program Peer Review

  5. Energy Efficient Buildings Hub

    Broader source: Energy.gov [DOE]

    Energy Efficient Buildings HUB Lunch Presentation for the 2013 Building Technologies Office's Program Peer Review

  6. Building America System Research

    Broader source: Energy.gov [DOE]

    Residential Buildings Integration Project for the 2013 Building Technologies Office's Program Peer Review

  7. Building Technologies Office Overview

    SciTech Connect (OSTI)

    2013-04-01

    Building Technologies Office Overview Presentation for the 2013 Building Technologies Office's Program Peer Review

  8. Residential Buildings Integration Program

    Broader source: Energy.gov [DOE]

    Residential Buildings Integration Program Presentation for the 2013 Building Technologies Office's Program Peer Review

  9. Building America System Research

    SciTech Connect (OSTI)

    2013-04-01

    Residential Buildings Integration Project for the 2013 Building Technologies Office's Program Peer Review

  10. Human Health Science Building Geothermal Heat Pumps

    Broader source: Energy.gov [DOE]

    Project objectives: Construct a ground sourced heat pump, heating, ventilation, and air conditioning system for the new Oakland University Human Health Sciences Building utilizing variable refrigerant flow (VRF) heat pumps. A pair of dedicated outdoor air supply units will utilize a thermally regenerated desiccant dehumidification section. A large solar thermal system along with a natural gas backup boiler will provide the thermal regeneration energy.

  11. Hill Air Force Base | Department of Energy

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

    Hill Air Force Base Hill Air Force Base Hill Air Force Base Overview 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

  12. Advanced Variable Speed Air-Source Integrated Heat Pump 2013...

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

    Pump 2013 Peer Review Advanced Variable Speed Air-Source Integrated Heat Pump 2013 Peer Review Emerging Technologies Project for the 2013 Building Technologies Office's Program ...

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

    Office of Scientific and Technical Information (OSTI)

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

  14. WDEQ-Air Quality Division | Open Energy Information

    Open Energy Info (EERE)

    Quality Division Jump to: navigation, search Name: WDEQ-Air Quality Division Abbreviation: WDEQ AQD Address: 122 West 25th Street, Herschler Building Place: Cheyenne, Wyoming Zip:...

  15. Air Sealing for New Home Construction | Department of Energy

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

    and climate zone. < Minimizing air movement in and out of a house is key to building an energy-efficient home. Controlling air leakage is also critical to moisture control. It's...

  16. Clean Air Initiative for Asian Cities | Open Energy Information

    Open Energy Info (EERE)

    "The Clean Air Initiative for Asian Cities (CAI-Asia) promotes innovative ways to improve air quality in Asian cities by sharing experiences and building partnerships. CAI-Asia was...

  17. Compressive passive millimeter wave imager

    DOE Patents [OSTI]

    Gopalsami, Nachappa; Liao, Shaolin; Elmer, Thomas W; Koehl, Eugene R; Heifetz, Alexander; Raptis, Apostolos C

    2015-01-27

    A compressive scanning approach for millimeter wave imaging and sensing. A Hadamard mask is positioned to receive millimeter waves from an object to be imaged. A subset of the full set of Hadamard acquisitions is sampled. The subset is used to reconstruct an image representing the object.

  18. Buildings","Heated Buildings",,"Cooled Buildings",,"Lit Buildingsc...

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

    ... with Cooling ......",58474,56361,49482,58474,42420,57936,50055 "Buildings with Water Heating .",56115,54204,48070,52589,38844,55586,48125 "Buildings with Cooking ...

  19. Air filter

    SciTech Connect (OSTI)

    Jackson, R.E.; Sparks, J.E.

    1981-03-03

    An air filter is described that has a counter rotating drum, i.e., the rotation of the drum is opposite the tangential intake of air. The intake air has about 1 lb of rock wool fibers per 107 cu. ft. of air sometimes at about 100% relative humidity. The fibers are doffed from the drum by suction nozzle which are adjacent to the drum at the bottom of the filter housing. The drum screen is cleaned by periodically jetting hot dry air at 120 psig through the screen into the suction nozzles.

  20. Dynamic control of a homogeneous charge compression ignition engine

    DOE Patents [OSTI]

    Duffy, Kevin P. (Metamora, IL); Mehresh, Parag (Peoria, IL); Schuh, David (Peoria, IL); Kieser, Andrew J. (Morton, IL); Hergart, Carl-Anders (Peoria, IL); Hardy, William L. (Peoria, IL); Rodman, Anthony (Chillicothe, IL); Liechty, Michael P. (Chillicothe, IL)

    2008-06-03

    A homogenous charge compression ignition engine is operated by compressing a charge mixture of air, exhaust and fuel in a combustion chamber to an autoignition condition of the fuel. The engine may facilitate a transition from a first combination of speed and load to a second combination of speed and load by changing the charge mixture and compression ratio. This may be accomplished in a consecutive engine cycle by adjusting both a fuel injector control signal and a variable valve control signal away from a nominal variable valve control signal. Thereafter in one or more subsequent engine cycles, more sluggish adjustments are made to at least one of a geometric compression ratio control signal and an exhaust gas recirculation control signal to allow the variable valve control signal to be readjusted back toward its nominal variable valve control signal setting. By readjusting the variable valve control signal back toward its nominal setting, the engine will be ready for another transition to a new combination of engine speed and load.

  1. CBEI: AHU FDD in Small and Medium Sized Commercial Buildings - 2015 Peer

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

    Review | Department of Energy AHU FDD in Small and Medium Sized Commercial Buildings - 2015 Peer Review CBEI: AHU FDD in Small and Medium Sized Commercial Buildings - 2015 Peer Review Presenter: Jin Wen, Drexel View the Presentation PDF icon CBEI: AHU FDD in Small and Medium Sized Commercial Buildings - 2015 Peer Review More Documents & Publications Compatible and Cost-Effective Fault Diagnostic Solutions for Air Handling Unit-Variable Air Volume and Air Handling Unit-Constant Air Volume

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

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

    Lighting ControlsSensors, Chillers, Heat Pumps, Air conditioners, Compressed air, Programmable Thermostats, Building Insulation, Windows, Roofs, Motor VFDs, Agricultural...

  3. ADVANCED RECIPROCATING COMPRESSION TECHNOLOGY (ARCT)

    SciTech Connect (OSTI)

    Danny M. Deffenbaugh; Klaus Brun; Ralph E. Harris; J. Pete Harrell; Robert J. Mckee; J. Jeffrey Moore; Steven J. Svedeman; Anthony J. Smalley; Eugene L. Broerman; Robert A Hart; Marybeth G. Nored; Ryan S. Gernentz; Shane P. Siebenaler

    2005-12-01

    The U.S. natural gas pipeline industry is facing the twin challenges of increased flexibility and capacity expansion. To meet these challenges, the industry requires improved choices in gas compression to address new construction and enhancement of the currently installed infrastructure. The current fleet of installed reciprocating compression is primarily slow-speed integral machines. Most new reciprocating compression is and will be large, high-speed separable units. The major challenges with the fleet of slow-speed integral machines are: limited flexibility and a large range in performance. In an attempt to increase flexibility, many operators are choosing to single-act cylinders, which are causing reduced reliability and integrity. While the best performing units in the fleet exhibit thermal efficiencies between 90% and 92%, the low performers are running down to 50% with the mean at about 80%. The major cause for this large disparity is due to installation losses in the pulsation control system. In the better performers, the losses are about evenly split between installation losses and valve losses. The major challenges for high-speed machines are: cylinder nozzle pulsations, mechanical vibrations due to cylinder stretch, short valve life, and low thermal performance. To shift nozzle pulsation to higher orders, nozzles are shortened, and to dampen the amplitudes, orifices are added. The shortened nozzles result in mechanical coupling with the cylinder, thereby, causing increased vibration due to the cylinder stretch mode. Valve life is even shorter than for slow speeds and can be on the order of a few months. The thermal efficiency is 10% to 15% lower than slow-speed equipment with the best performance in the 75% to 80% range. The goal of this advanced reciprocating compression program is to develop the technology for both high speed and low speed compression that will expand unit flexibility, increase thermal efficiency, and increase reliability and integrity. Retrofit technologies that address the challenges of slow-speed integral compression are: (1) optimum turndown using a combination of speed and clearance with single-acting operation as a last resort; (2) if single-acting is required, implement infinite length nozzles to address nozzle pulsation and tunable side branch absorbers for 1x lateral pulsations; and (3) advanced valves, either the semi-active plate valve or the passive rotary valve, to extend valve life to three years with half the pressure drop. This next generation of slow-speed compression should attain 95% efficiency, a three-year valve life, and expanded turndown. New equipment technologies that address the challenges of large-horsepower, high-speed compression are: (1) optimum turndown with unit speed; (2) tapered nozzles to effectively reduce nozzle pulsation with half the pressure drop and minimization of mechanical cylinder stretch induced vibrations; (3) tunable side branch absorber or higher-order filter bottle to address lateral piping pulsations over the entire extended speed range with minimal pressure drop; and (4) semi-active plate valves or passive rotary valves to extend valve life with half the pressure drop. This next generation of large-horsepower, high-speed compression should attain 90% efficiency, a two-year valve life, 50% turndown, and less than 0.75 IPS vibration. This program has generated proof-of-concept technologies with the potential to meet these ambitious goals. Full development of these identified technologies is underway. The GMRC has committed to pursue the most promising enabling technologies for their industry.

  4. Sabdia's Radial Flow Air Bearing Heat Exchanger

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

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

  5. Residential Air-Source Heat Pump Program

    Broader source: Energy.gov [DOE]

    Massachusetts offers rebates of up to $2,500 for the installation of high-efficiency, cold-climate air-source heat pumps (ASHPs) in residential buildings of one to four units. 

  6. Cryo-Compressed Hydrogen Storage: Performance and Cost Review...

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

    Compressed Hydrogen Storage: Performance and Cost Review Cryo-Compressed Hydrogen Storage: Performance and Cost Review Presented at the R&D Strategies for Compressed,...

  7. Used Fuel Disposition Campaign Phase I Ring Compression Testing...

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

    Phase I Ring Compression Testing of High Burnup Cladding Used Fuel Disposition Campaign Phase I Ring Compression Testing of High Burnup Cladding The purpose of ring compression...

  8. Effect of Compression Ratio and Piston Geometry on RCCI load...

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

    Compression Ratio and Piston Geometry on RCCI load limit Effect of Compression Ratio and Piston Geometry on RCCI load limit Explores the effect of compression ratio and piston ...

  9. Electrochemical Hydrogen Compression (EHC) | Department of Energy

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

    Electrochemical Hydrogen Compression (EHC) Electrochemical Hydrogen Compression (EHC) This presentation by Pinakin Patel and Ludwig Lipp of Fuel Cell Energy was given at the DOE Hydrogen Compression, Storage, and Dispensing Workshop on March 20, 2013. PDF icon csd_workshop_4_patel.pdf More Documents & Publications Small Business Innovation Research (SBIR) Award Success Story: FuelCell Energy Inc. 2013 Hydrogen Compression, Storage, and Dispensing Cost Reduction Workshop Final Report Hydrogen

  10. Gaseous Hydrogen Compression | Department of Energy

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

    » Gaseous Hydrogen Compression Gaseous Hydrogen Compression Hydrogen is typically produced at relatively low pressures (20-30 bar) and must be compressed prior to transport. Most compressors used today for gaseous hydrogen compression are either positive displacement compressors or centrifugal compressors. Positive displacement compressors can be reciprocating or rotary. Reciprocating compressors use a motor with a linear drive to move a piston or a diaphragm back and forth. This motion

  11. Berkeley Lab to Help Build Straw Bale Building

    SciTech Connect (OSTI)

    Worsham, S.A.; Van Mechelen, G.

    1998-12-01

    The Shorebird Environmental Learning Center (SELC) is a new straw bale building that will showcase current and future technologies and techniques that will reduce the environmental impacts of building construction and operations. The building will also serve as a living laboratory to test systems and monitor their performance. The project will be the model for a building process that stops using our precious resources and reduces waste pollution. The rice straw that will be used for the bale construction is generally waste material that is typically burned--millions of tons of it a year--especially in California's San Joaquin Valley. Buildings have significant impacts on the overall environment. Building operations, including lighting, heating, and cooling, consume about 30% of the energy used in the United States. Building construction and the processes into making building materials consume an additional 8% of total energy. Construction also accounts for 39% of wood consumed in the U S, while 25% of solid waste volume is construction and demolition (C &D) debris. The SELC will incorporate a variety of materials and techniques that will address these and other issues, while providing a model of environmentally considered design for Bay Area residents and builders. Environmental considerations include energy use in construction and operations, selection of materials, waste minimization, and indoor air quality. We have developed five major environmental goals for this project: (1) Minimize energy use in construction and operations; (2) Employ material sources that are renewable, salvaged, recycled, and/or recyclable; (3) Increase building lifespan with durable materials and designs that permit flexibility and modification with minimal demolition; (4) Reduce and strive to eliminate construction debris; and (5) Avoid products that create toxic pollutants and make a healthy indoor environment.

  12. Btu)","per Building

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

    ,"Number of Buildings (thousand)","Floorspace (million square feet)","Floorspace per Building (thousand square feet)","Total (trillion Btu)","per Building (million Btu)","per...

  13. Building Energy Code

    Broader source: Energy.gov [DOE]

    The Rhode Island Building Code Standards Committee adopts, promulgates and administers the state building code. Compliance is determined through the building permit and inspection process by local...

  14. 1999 Commercial Buildings Characteristics

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

    Data Reports > 2003 Building Characteristics Overview 1999 Commercial Buildings Energy Consumption SurveyCommercial Buildings Characteristics Released: May 2002 Topics: Energy...

  15. Building America Technology Solutions Case Study: Ventilation System

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

    Effectiveness and Tested Indoor Air Quality Impacts | Department of Energy Case Study: Ventilation System Effectiveness and Tested Indoor Air Quality Impacts Building America Technology Solutions Case Study: Ventilation System Effectiveness and Tested Indoor Air Quality Impacts Building Science Corporation tested the effectiveness of various ventilation systems at two unoccupied, single-family lab homes at the University of Texas at Tyler. The only difference was that House 1 had a vented

  16. Building America Technology Solutions for New and Existing Homes:

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

    Combustion Safety Using Appliances for Indoor Air (Fact Sheet) | Department of Energy Building America Technology Solutions for New and Existing Homes: Combustion Safety Using Appliances for Indoor Air (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Combustion Safety Using Appliances for Indoor Air (Fact Sheet) In this case study, the Partnership for Advanced Residential Retrofit team provides guidance on how to assess and carry out the combustion safety

  17. Building America Whole-House Solutions for New Homes: Evluating

    Energy Savers [EERE]

    Through-Wall Air Transfer Fans, Pittburgh, Pennsylvania | Department of Energy Evluating Through-Wall Air Transfer Fans, Pittburgh, Pennsylvania Building America Whole-House Solutions for New Homes: Evluating Through-Wall Air Transfer Fans, Pittburgh, Pennsylvania In this project, Building America team IBACOS performed field testing in a new construction unoccupied test house in Pittsburgh, Pennsylvania to evaluate HVAC distribution systems during heating, cooling, and midseason conditions.

  18. Building America Building Science Translator

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

    Building Science Translator February 2015 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, subcontractors, or affliated partners, make any warranty, express or implied, or assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represent that its use

  19. Office Buildings - Types of Office Buildings

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

    administration building Insurance company headquarters building Local insurance agency Social services office Attorney's office Real estate sales office Government office State...

  20. 1999 Commercial Buildings Characteristics--Building Size

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

    (202) 586-8800. Energy Information Administration Commercial Buildings Energy Consumption Survey Top Return to: "1999 CBECS-Commercial Buildings Characteristics" Specific questions...

  1. Buildings Interoperability Planning: Connected Buildings Interoperabil...

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

    Vision Context Steve Widergren PNNL 11 March 2015 Topics Purpose of meeting Buildings automation in the transformative time of connectivity Interoperability - a connected buildings...

  2. Building Technologies Program: Building America Publications

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

    and existing homes provided by the Building America Program.You may also visit the new Solution Center to find expert building science and energy efficiency resources. RSS...

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

    SciTech Connect (OSTI)

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

    1984-01-01

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

  4. air force

    National Nuclear Security Administration (NNSA)

    en NNSA, Air Force Complete Successful B61-12 Life Extension Program Development Flight Test at Tonopah Test Range http:nnsa.energy.govmediaroompressreleases...

  5. 1999 Commercial Building Characteristics--Building Activity Comparison

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

    Building Activity Comparison Percentage of Floorspace and Buildings by Principal Building Activity, 1999 Percentage of Floorspace and Buildings by Principal Building Activity,...

  6. BSC: Building America, Building Science Consortium - 2015 Peer...

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

    Review BSC: Building America, Building Science Consortium - 2015 Peer Review Presenter: Joe Lstiburek, Building Science Corp. View the Presentation BSC: Building America, Building...

  7. Buildings*","Lit Buildings","Lighting Equipment Types

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

    Lighting Equipment, Number of Buildings for Non-Mall Buildings, 2003" ,"Number of Buildings (thousand)" ,"All Buildings*","Lit Buildings","Lighting Equipment Types (more than one ...

  8. CO2 Compression | netl.doe.gov

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

    CO2 Compression CO2 Compression The CO2 captured from a power plant must be compressed from near atmospheric pressure to a pressure between 1,500 and 2,200 psi to be transported via pipeline and then injected into an underground storage site. The compression of CO2 represents a potentially large auxiliary power load on the overall power plant system. For example, in an August 2007 study conducted for NETL, CO2 compression was accomplished using a six-stage centrifugal compressor with interstage

  9. Building America Technology Solutions for New and Existing Homes: Evaluation of Ventilation Strategies in New Construction Multifamily Buildings, New York, New York (Fact Sheet)

    Broader source: Energy.gov [DOE]

    This research effort, conducted by the Consortium for Advanced Residential Buildings, included several weeks of building pressure monitoring to validate system performance of four different strategies for providing make-up air to multifamily apartments.

  10. Buildings | Open Energy Information

    Open Energy Info (EERE)

    influence a building, including incentives, utilities, weather, climate, and locationground temperature. Municipalities and Renewable Energy Opportunities Building...

  11. Building Technologies Office Overview

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

    Roland Risser Director, Building Technologies Office Building Technologies Office Overview Our Homes and Buildings Use 40% of Our Nation's Energy and 75% of Electricity Energy Use Electricity Use Residential Transportation 21 quads 27 quads Commercial 18 quads Industrial 31 quads U.S. Energy Bill for Buildings: $410 billion per year 2 Building Technologies Office (BTO) Ecosystem Emerging Technologies Building Codes Appliance Standards Residential Buildings Integration Commercial Buildings

  12. Building Envelope Stakeholder Workshop

    Broader source: Energy.gov [DOE]

    Oak Ridge National Laboratory is hosting a building envelope stakeholder workshop on behalf of the DOE Building Technologies Office.

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

    SciTech Connect (OSTI)

    Kozubal, E.

    2013-02-01

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

  14. Building America Case Study: Overcoming Comfort Issues Due to Reduced Flow Room Air Mixing (Fact Sheet), Technology Solutions for New and Existing Homes, Energy Efficiency & Renewable Energy (EERE)

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

    Overcoming Comfort Issues Due to Reduced Flow Room Air Mixing PROJECT INFORMATION Project Name: Reduced Flow Room Air Mixing Risks Location: Various U.S. areas IBACOS, ibacos.com Application: Retrofit Component: Heating and cooling equipment Year Tested: 2013-2014 Climate Zone: All PERFORMANCE DATA Modeled Load Reduction (Btu/h) Heating Load: Pre-Retrofit: 80,000 Btu/h Post-Retrofit: 25,000 Btu/h Cooling Load: Pre-Retrofit: 30,000 Btu/h Post-Retrofit: 12,000 Btu/h Modeled Airflow Reduction

  15. Building America Building Science Education Roadmap

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

    Building Science Education Roadmap April 2013 Contents Introduction ................................................................................................................................ 3 Background ................................................................................................................................. 4 Summit Participants .................................................................................................................... 5 Key Results

  16. 2012 ARPA-E Energy Innovation Summit: Profiling General Compression: A River of Wind

    SciTech Connect (OSTI)

    Marcus, David; Ingersoll, Eric

    2012-02-29

    The third annual ARPA-E Energy Innovation Summit was held in Washington D.C. in February, 2012. The event brought together key players from across the energy ecosystem - researchers, entrepreneurs, investors, corporate executives, and government officials - to share ideas for developing and deploying the next generation of energy technologies. A few videos were selected for showing during the Summit to attendees. These 'performer videos' highlight innovative research that is ongoing and related to the main topics of the Summit's sessions. Featured in this video are David Marcus, Founder of General Compression, and Eric Ingersoll, CEO of General Compression. General Compression, with the help of ARPA-E funding, has created an advanced air compression process which can store and release more than a weeks worth of the energy generated by wind turbines.

  17. 2012 ARPA-E Energy Innovation Summit: Profiling General Compression: A River of Wind

    ScienceCinema (OSTI)

    Marcus, David; Ingersoll, Eric

    2012-03-21

    The third annual ARPA-E Energy Innovation Summit was held in Washington D.C. in February, 2012. The event brought together key players from across the energy ecosystem - researchers, entrepreneurs, investors, corporate executives, and government officials - to share ideas for developing and deploying the next generation of energy technologies. A few videos were selected for showing during the Summit to attendees. These 'performer videos' highlight innovative research that is ongoing and related to the main topics of the Summit's sessions. Featured in this video are David Marcus, Founder of General Compression, and Eric Ingersoll, CEO of General Compression. General Compression, with the help of ARPA-E funding, has created an advanced air compression process which can store and release more than a weeks worth of the energy generated by wind turbines.

  18. Building America Technology Solutions Case Study: Field Testing an Unvented

    Energy Savers [EERE]

    Roof with Asphalt Shingles in a Cold Climate | Department of Energy Testing an Unvented Roof with Asphalt Shingles in a Cold Climate Building America Technology Solutions Case Study: Field Testing an Unvented Roof with Asphalt Shingles in a Cold Climate In this project, Building America team Building Science Corporation devised an experiment to build and instrument unvented test roofs using air-permeable insulation (dense-pack cellulose and fiberglass) in a cold climate (Chicago, Illinois

  19. Building America 2014 Top Innovations | Department of Energy

    Energy Savers [EERE]

    Building America 2014 Top Innovations Building America 2014 Top Innovations This page provides a listing of and links to Building America Top Innovations awarded in 2014. Advanced Technologies and Practices BUILDING SCIENCE SOLUTIONS Thermal Enclosure: Cost-Optimized Attic Insulation Solution for Factory-Built Homes OPTIMIZED COMFORT SOLUTIONS HVAC Cabinet Air Leakage Test Method California Energy Standards Recognize the Importance of Filter Selection ASSURED HEALTH AND SAFETY ASHRAE Standard

  20. Compressed natural gas vehicles motoring towards a green Beijing

    SciTech Connect (OSTI)

    Yang, Ming; Kraft-Oliver, T.; Guo Xiao Yan

    1996-12-31

    This paper first describes the state-of-the-art of compressed natural gas (CNG) technologies and evaluates the market prospects for CNG vehicles in Beijing. An analysis of the natural gas resource supply for fleet vehicles follows. The costs and benefits of establishing natural gas filling stations and promoting the development of vehicle technology are evaluated. The quantity of GHG reduction is calculated. The objective of the paper is to provide information of transfer niche of CNG vehicle and equipment production in Beijing. This paper argues that the development of CNG vehicles is a cost-effective strategy for mitigating both air pollution and GHG.

  1. Cold air systems: Sleeping giant

    SciTech Connect (OSTI)

    MacCracken, C.D. )

    1994-04-01

    This article describes how cold air systems help owners increase the profits from their buildings by reducing electric costs and improving indoor air quality through lower relative humidity levels. Cold air distribution involves energy savings, cost savings, space savings, greater comfort, cleaner air, thermal storage, tighter ducting, coil redesign, lower relative humidities, retrofitting, and improved indoor air quality (IAQ). It opens a door for architects, engineers, owners, builders, environmentalists, retrofitters, designers, occupants, and manufacturers. Three things have held up cold air's usage: multiple fan-powered boxes that ate up the energy savings of primary fans. Cold air room diffusers that provided inadequate comfort. Condensation from ducts, boxes, and diffusers. Such problems have been largely eliminated through research and development by utilities and manufacturers. New cold air diffusers no longer need fan powered boxes. It has also been found that condensation is not a concern so long as the ducts are located in air conditioned space, such as drop ceilings or central risers, where relative humidity falls quickly during morning startup.

  2. Commercial Buildings Energy Consumption Survey - Office Buildings

    Reports and Publications (EIA)

    2010-01-01

    Provides an in-depth look at this building type as reported in the 2003 Commercial Buildings Energy Consumption Survey. Office buildings are the most common type of commercial building and they consumed more than 17% of all energy in the commercial buildings sector in 2003. This special report provides characteristics and energy consumption data by type of office building (e.g. administrative office, government office, medical office) and information on some of the types of equipment found in office buildings: heating and cooling equipment, computers, servers, printers, and photocopiers.

  3. Membrane Based Air Conditioning | Department of Energy

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

    Membrane Based Air Conditioning Membrane Based Air Conditioning Lead Performer: Dais Analytic Corporation - Odessa, FL Partners: - Oak Ridge National Laboratory - Oak Ridge, TN - Xergy Inc. - Seaford, DE DOE Total Funding: $1,500,000 Cost Share: $300,000 Project Term: October 1, 2015 - September 30, 2016 Funding Opportunity: Building Energy Efficiency Frontiers and Innovation (BENEFIT) - 2015 Project Objective NanoAir HVAC technology transfers water molecules through a patented nanostructured

  4. Hot air drum evaporator

    DOE Patents [OSTI]

    Black, Roger L. (Idaho Falls, ID)

    1981-01-01

    An evaporation system for aqueous radioactive waste uses standard 30 and 55 gallon drums. Waste solutions form cascading water sprays as they pass over a number of trays arranged in a vertical stack within a drum. Hot dry air is circulated radially of the drum through the water sprays thereby removing water vapor. The system is encased in concrete to prevent exposure to radioactivity. The use of standard 30 and 55 gallon drums permits an inexpensive compact modular design that is readily disposable, thus eliminating maintenance and radiation build-up problems encountered with conventional evaporation systems.

  5. Jackson Park Hospital Green Building Medical Center

    SciTech Connect (OSTI)

    William Dorsey; Nelson Vasquez

    2010-03-31

    Jackson Park Hospital completed the construction of a new Medical Office Building on its campus this spring. The new building construction has adopted the City of Chicago's recent focus on protecting the environment, and conserving energy and resources, with the introduction of green building codes. Located in a poor, inner city neighborhood on the South side of Chicago, Jackson Park Hospital has chosen green building strategies to help make the area a better place to live and work. The new green building houses the hospital's Family Medicine Residency Program and Specialty Medical Offices. The residency program has been vital in attracting new, young physicians to this medically underserved area. The new outpatient center will also help to allure needed medical providers to the community. The facility also has areas designated to women's health and community education. The Community Education Conference Room will provide learning opportunities to area residents. Emphasis will be placed on conserving resources and protecting our environment, as well as providing information on healthcare access and preventive medicine. The new Medical Office Building was constructed with numerous energy saving features. The exterior cladding of the building is an innovative, locally-manufactured precast concrete panel system with integral insulation that achieves an R-value in excess of building code requirements. The roof is a 'green roof' covered by native plantings, lessening the impact solar heat gain on the building, and reducing air conditioning requirements. The windows are low-E, tinted, and insulated to reduce cooling requirements in summer and heating requirements in winter. The main entrance has an air lock to prevent unconditioned air from entering the building and impacting interior air temperatures. Since much of the traffic in and out of the office building comes from the adjacent Jackson Park Hospital, a pedestrian bridge connects the two buildings, further decreasing the amount of unconditioned air that enters the office building. The HVAC system has an Energy Efficiency Rating 29% greater than required. No CFC based refrigerants were used in the HVAC system, thus reducing the emission of compounds that contribute to ozone depletion and global warming. In addition, interior light fixtures employ the latest energy-efficient lamp and ballast technology. Interior lighting throughout the building is operated by sensors that will automatically turn off lights inside a room when the room is unoccupied. The electrical traction elevators use less energy than typical elevators, and they are made of 95% recycled material. Further, locally manufactured products were used throughout, minimizing the amount of energy required to construct this building. The primary objective was to construct a 30,000 square foot medical office building on the Jackson Park Hospital campus that would comply with newly adopted City of Chicago green building codes focusing on protecting the environment and conserving energy and resources. The energy saving systems demonstrate a state of the-art whole-building approach to energy efficient design and construction. The energy efficiency and green aspects of the building contribute to the community by emphasizing the environmental and economic benefits of conserving resources. The building highlights the integration of Chicago's new green building codes into a poor, inner city neighborhood project and it is designed to attract medical providers and physicians to a medically underserved area.

  6. Why build below

    SciTech Connect (OSTI)

    Rawlings, R.

    1982-01-01

    Building homes underground is a rapidly growing concept. From less than 200 in 1977 to about 6000 homes at present, this trend is discussed in detail. Although dirt is a poor insulator, its temperature moderating properties offer advantages. The need for insulating an underground house is discussed as well as the advantages of this type of home: (1) security advantages (fewer entrances); (2) storm resistance; (3) protection against fire; (4) lower maintenance costs; (5) space for lawn and garden is greater; and (6) these homes are quieter. The three principle types of underground homes are discussed in detail and illustrated with drawings and floor plans. These are: (1) the elevational type (most popular) with all doors and windows on one wall with other walls and roof completely covered; (2) penetrational homes with windows and doors on more than one side; and (3) the atrium home which is built around an open courtyard or atrium. Problems associated with earth-sheltered homes (underground water, structural strength requirements, building codes, indoor air pollution, costs, and financing) are discussed and suggestions are made for cutting costs. 4 references. (MJJ)

  7. Better Buildings Neighborhood Program: BetterBuildings Lowell Final Report

    SciTech Connect (OSTI)

    Heslin, Thomas

    2014-01-31

    The City of Lowell set four goals at the beginning of the Better Buildings Neighborhood Program: 1. Improve the Downtown Historic Park District’s Carbon Footprint 2. Develop a sustainable and replicable model for energy efficiency in historic buildings 3. Create and retain jobs 4. Promote multi‐stakeholder partnerships The City of Lowell, MA was awarded $5 million in May 2010 to conduct energy efficiency retrofits within the downtown National Historical Park (NHP). The City’s target was to complete retrofits in 200,000 square feet of commercial space and create 280 jobs, while adhering to the strict historical preservation regulations that govern the NHP. The development of a model for energy efficiency in historic buildings was successfully accomplished. BetterBuildings Lowell’s success in energy efficiency in historic buildings was due to the simplicity of the program. We relied strongly on the replacement of antiquated HVAC systems and air sealing and a handful of talented energy auditors and contractors. BetterBuildings Lowell was unique for the Better Buildings Neighborhood Program because it was the only program that focused solely on commercial properties. BetterBuildings Lowell did target multi‐family properties, which were reported as commercial, but the majority of the building types and uses were commercial. Property types targeted were restaurants, office buildings, museums, sections of larger buildings, mixed use buildings, and multifamily buildings. This unique fabric of building type and use allows for a deeper understanding to how different properties use energy. Because of the National Historical Park designation of downtown Lowell, being able to implement energy efficiency projects within a highly regulated historical district also provided valuable research and precedent proving energy efficiency projects can be successfully completed in historical districts and historical buildings. Our program was very successful in working with the local Historic Board, which has jurisdiction in the NHP. The Historic Board was cooperative with any exterior renovations as long as they were not changing the existing aesthetics of the property. If we were replacing a rooftop condenser it needed to be placed where the existing rooftop condenser was located. Receiving proper approval from the Historic Board for any external energy conservation measures was known by all the participating contractors. One area of the retrofits that was contentious regarded venting of the new HVAC equipment. Installing external stacks was not allowed so the contractors had to negotiate with the Historic Board regarding the proper way to vent the equipment that met the needs mechanically and aesthetically. Overall BetterBuildings Lowell was successful at implementing energy and cost saving measures into 31 commercial properties located within the NHP. The 31 retrofits had 1,554,768 square feet of commercial and multifamily housing and a total predicted energy savings exceeding 22,869 a year. Overall the City of Lowell achieved its target goals and is satisfied with the accomplishments of the BetterBuildings program. The City will continue to pursue energy efficient programs and projects.

  8. Building Technologies Office Overview

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

    Roland Risser Director, Building Technologies Office Building Technologies Office Energy Efficiency Starts Here. 2 Building Technologies Office Integrated Approach: Improving Building Performance Research & Development Developing High Impact Technologies Standards & Codes Locking in the Savings Market Stimulation Accelerating Tech-to- Market 3 Building Technologies Office Goal: Reduce building energy use by 50% (compared to a 2010 baseline) 4 Building Technologies Office Working to

  9. Turbine inter-disk cavity cooling air compressor

    DOE Patents [OSTI]

    Chupp, R.E.; Little, D.A.

    1998-01-06

    The inter-disk cavity between turbine rotor disks is used to pressurize cooling air. A plurality of ridges extend radially outwardly over the face of the rotor disks. When the rotor disks are rotated, the ridges cause the inter-disk cavity to compress air coolant flowing through the inter-disk cavity en route to the rotor blades. The ridges eliminate the need for an external compressor to pressurize the air coolant. 5 figs.

  10. Turbine inter-disk cavity cooling air compressor

    DOE Patents [OSTI]

    Chupp, Raymond E. (Oviedo, FL); Little, David A. (Oviedo, FL)

    1998-01-01

    The inter-disk cavity between turbine rotor disks is used to pressurize cooling air. A plurality of ridges extend radially outwardly over the face of the rotor disks. When the rotor disks are rotated, the ridges cause the inter-disk cavity to compress air coolant flowing through the inter-disk cavity en route to the rotor blades. The ridges eliminate the need for an external compressor to pressurize the air coolant.

  11. Building America Solution Center- 2014 BTO Peer Review

    Broader source: Energy.gov [DOE]

    Presenter: Michael Baechler, Pacific Northwest National Laboratory The Building America Solution Center (Solution Center) is a community-driven online resource that provides residential building professionals with access to validated information on high-performance design and construction. Topics include air sealing and insulation; heating, ventilation, and air conditioning (HVAC) components; windows; indoor air quality; and more. Each topic offers a variety of resources, such as contracting documents, installation guidance, energy codes, and labeling program compliance. The goal of the Solution Center is to make best practices accessible and accelerate their dissemination, leading to better-educated stakeholders and fostering a community of users who will translate building science research into practice.

  12. Pressure Regain Strategies for Existing Air Distribution Systems |

    Energy Savers [EERE]

    Department of Energy Pressure Regain Strategies for Existing Air Distribution Systems Pressure Regain Strategies for Existing Air Distribution Systems This presentation was delivered at the U.S. Department of Energy Building America Technical Update meeting on April 29-30, 2013, in Denver, Colorado. PDF icon cq1_pressure_regain_burdick.pdf More Documents & Publications Critical Question #1: How Do We Retrofit the Tough Buildings? Building America Technology Solutions for New and Existing

  13. City of Indianapolis Better Buildings Program

    SciTech Connect (OSTI)

    Trovillion, Kristen

    2014-11-04

    In June 2010, the City of Indianapolis’ Office of Sustainability was awarded $10 million in grant funds through the U.S. Department of Energy’s Better Buildings Neighborhood Program (CFDA 81.128) funded by the 2009 American Recovery and Reinvestment Act. The purpose of the grant funds was to achieve energy savings in residential and commercial buildings through energy efficiency upgrades such as air sealing and insulation.

  14. Building Energy Efficiency in Rural China

    SciTech Connect (OSTI)

    Evans, Meredydd; Yu, Sha; Song, Bo; Deng, Qinqin; Liu, Jing; Delgado, Alison

    2014-04-01

    Rural buildings in China now account for more than half of Chinas total building energy use. Forty percent of the floorspace in China is in rural villages and towns. Most of these buildings are very energy inefficient, and may struggle to meet basic needs. They are cold in the winter, and often experience indoor air pollution from fuel use. The Chinese government plans to adopt a voluntary building energy code, or design standard, for rural homes. The goal is to build on Chinas success with codes in urban areas to improve efficiency and comfort in rural homes. The Chinese government recognizes rural buildings represent a major opportunity for improving national building energy efficiency. The challenges of rural China are also greater than those of urban areas in many ways because of the limited local capacity and low income levels. The Chinese government wants to expand on new programs to subsidize energy efficiency improvements in rural homes to build capacity for larger-scale improvement. This article summarizes the trends and status of rural building energy use in China. It then provides an overview of the new rural building design standard, and describes options and issues to move forward with implementation.

  15. Building America Best Practices Series, Vol. 10 - Retrofit Techniques &

    Energy Savers [EERE]

    Technologies: Air Sealing, A Guide for Contractors to Share with Homeowners | Department of Energy Series, Vol. 10 - Retrofit Techniques & Technologies: Air Sealing, A Guide for Contractors to Share with Homeowners Building America Best Practices Series, Vol. 10 - Retrofit Techniques & Technologies: Air Sealing, A Guide for Contractors to Share with Homeowners This guide provides information to contractors and homeowners to identify ways to seal unwanted air leaks in homes, while

  16. Building America

    SciTech Connect (OSTI)

    Brad Oberg

    2010-12-31

    Builders generally use a 'spec and purchase' business management system (BMS) when implementing energy efficiency. A BMS is the overall operational and organizational systems and strategies that a builder uses to set up and run its company. This type of BMS treats building performance as a simple technology swap (e.g. a tank water heater to a tankless water heater) and typically compartmentalizes energy efficiency within one or two groups in the organization (e.g. purchasing and construction). While certain tools, such as details, checklists, and scopes of work, can assist builders in managing the quality of the construction of higher performance homes, they do nothing to address the underlying operational strategies and issues related to change management that builders face when they make high performance homes a core part of their mission. To achieve the systems integration necessary for attaining 40% + levels of energy efficiency, while capturing the cost tradeoffs, builders must use a 'systems approach' BMS, rather than a 'spec and purchase' BMS. The following attributes are inherent in a systems approach BMS; they are also generally seen in quality management systems (QMS), such as the National Housing Quality Certification program: Cultural and corporate alignment, Clear intent for quality and performance, Increased collaboration across internal and external teams, Better communication practices and systems, Disciplined approach to quality control, Measurement and verification of performance, Continuous feedback and improvement, and Whole house integrated design and specification.

  17. Eccentric crank variable compression ratio mechanism

    DOE Patents [OSTI]

    Lawrence, Keith Edward (Kobe, JP); Moser, William Elliott (Peoria, IL); Roozenboom, Stephan Donald (Washington, IL); Knox, Kevin Jay (Peoria, IL)

    2008-05-13

    A variable compression ratio mechanism for an internal combustion engine that has an engine block and a crankshaft is disclosed. The variable compression ratio mechanism has a plurality of eccentric disks configured to support the crankshaft. Each of the plurality of eccentric disks has at least one cylindrical portion annularly surrounded by the engine block. The variable compression ratio mechanism also has at least one actuator configured to rotate the plurality of eccentric disks.

  18. Ozone Reductions Using Residential Building Envelopes

    SciTech Connect (OSTI)

    Walker, Iain S.; Sherman, Max; Nazaroff, William W.

    2009-02-01

    Ozone is an air pollutant with that can have significant health effects and a significant source of ozone in some regions of California is outdoor air. Because people spend the vast majority of their time indoors, reduction in indoor levels of ozone could lead to improved health for many California residents. Ozone is removed from indoor air by surface reactions and can also be filtered by building envelopes. The magnitude of the envelope impact depends on the specific building materials that the air flows over and the geometry of the air flow paths through the envelope that can be changes by mechanical ventilation operation. The 2008 Residential Building Standards in California include minimum requirements for mechanical ventilation by referencing ASHRAE Standard 62.2. This study examines the changes in indoor ozone depending on the mechanical ventilation system selected to meet these requirements. This study used detailed simulations of ventilation in a house to examine the impacts of different ventilation systems on indoor ozone concentrations. The simulation results showed that staying indoors reduces exposure to ozone by 80percent to 90percent, that exhaust ventilation systems lead to lower indoor ozone concentrations, that opening of windows should be avoided at times of high outdoor ozone, and that changing the time at which mechanical ventilation occurs has the ability to halve exposure to ozone. Future work should focus on the products of ozone reactions in the building envelope and the fate of these products with respect to indoor exposures.

  19. Russias R&D for Low Energy Buildings: Insights for Cooperation with Russia

    SciTech Connect (OSTI)

    Schaaf, Rebecca E.; Evans, Meredydd

    2010-05-01

    Russian buildings, Russian buildings sector energy consumption. Russian government has made R&D investment a priority again. The government and private sector both invest in a range of building energy technologies. In particular, heating, ventilation and air conditioning, district heating, building envelope, and lighting have active technology research projects and programs in Russia.

  20. Energy Savings Potential and RD&D Opportunities for Commercial Building HVAC

    Office of Energy Efficiency and Renewable Energy (EERE)

    This Building Technologies Office report assesses heating, ventilation, and air-conditioning (HVAC) technologies for U.S. commercial buildings to identify and provide analysis on 17 priority technology options in various stages of development.

  1. Case Study - Compressed Natural Gas Refuse Fleets

    SciTech Connect (OSTI)

    Laughlin, M; Burnham, A.

    2014-02-01

    This case study explores the use of heavy-duty refuse trucks fueled by compressed natural gas highlighting three fleets from very different types of organizations.

  2. Hydrogen Compression, Storage, and Dispensing Cost Reduction...

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

    Publications 2013 Hydrogen Compression, Storage, and Dispensing Cost Reduction Workshop Final Report Storage - Challenges and Opportunities Hydro-Pac Inc., A High Pressure Company

  3. Direct Numerical Simulation of Compressible, Turbulent Flow ...

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

    and mechanical loads on high-speed aircraft inherently challenging. Focusing on the basic science of unsteady separation in compressible, turbulence flow, the aim of this project...

  4. Building America Update - November 9, 2012

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

    November 9, 2012 This announcement brings you the latest information about news, activities, and publications from the U.S. Department of Energy's Building America program. DOE Challenge Home Technical Training The DOE Challenge Home team invites you to attend a training webinar on Thursday, November 15, 2012, titled "The Future is Now: Design Options for Locating Ducts within Conditioned Space." Locating the forced-air duct system within the home's air and thermal barriers is a

  5. Building Energy Optimization Analysis Method (BEopt) - Building...

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

    Read the Top Innovation profile about BEopt. See an example of a Building America project that used BEopt. Find more case studies of Building America projects across the country ...

  6. Voluntary Green Building Standards for Public Buildings

    Broader source: Energy.gov [DOE]

    NOTE: The program described below is a voluntary program that encourages state agencies to consider using green building standard. The State of Alabama does not have mandatory Green Building...

  7. Building America Webinar: Ventilation in Multifamily Buildings

    Broader source: Energy.gov [DOE]

    This webinar was presented by research team Consortium for Advanced Residential Buildings (CARB), and discussed ventilation strategies for multifamily buildings, including how to successfully implement those strategies through smart design, specification, and construction techniques.

  8. Building America Technology Solutions for New and Existing Homes:

    Energy Savers [EERE]

    Air-to-Water Heat Pumps with Radiant Delivery in Low Load Homes (Fact Sheet) | Department of Energy Air-to-Water Heat Pumps with Radiant Delivery in Low Load Homes (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Air-to-Water Heat Pumps with Radiant Delivery in Low Load Homes (Fact Sheet) Researchers from Alliance for Residential Building Initiative worked with two test homes in hot-dry climates to evaluate the in-situ performance of air-to-water heat pump

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

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

    Lighting, Lighting ControlsSensors, Chillers, Furnaces, Boilers, Air conditioners, Steam-system upgrades, Compressed air, Energy Mgmt. SystemsBuilding Controls, Building...

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

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

    Chillers, Heat Pumps, Air conditioners, Heat recovery, Compressed air, Energy Mgmt. SystemsBuilding Controls, Building Insulation, Windows, Roofs, Motor VFDs, CustomOthers...

  11. Compressed natural gas (CNG) measurement

    SciTech Connect (OSTI)

    Husain, Z.D.; Goodson, F.D.

    1995-12-01

    The increased level of environmental awareness has raised concerns about pollution. One area of high attention is the internal combustion engine. The internal combustion engine in and of itself is not a major pollution threat. However, the vast number of motor vehicles in use release large quantities of pollutants. Recent technological advances in ignition and engine controls coupled with unleaded fuels and catalytic converters have reduced vehicular emissions significantly. Alternate fuels have the potential to produce even greater reductions in emissions. The Natural Gas Vehicle (NGV) has been a significant alternative to accomplish the goal of cleaner combustion. Of the many alternative fuels under investigation, compressed natural gas (CNG) has demonstrated the lowest levels of emission. The only vehicle certified by the State of California as an Ultra Low Emission Vehicle (ULEV) was powered by CNG. The California emissions tests of the ULEV-CNG vehicle revealed the following concentrations: Non-Methane Hydrocarbons 0.005 grams/mile Carbon Monoxide 0.300 grams/mile Nitrogen Oxides 0.040 grams/mile. Unfortunately, CNG vehicles will not gain significant popularity until compressed natural gas is readily available in convenient locations in urban areas and in proximity to the Interstate highway system. Approximately 150,000 gasoline filling stations exist in the United States while number of CNG stations is about 1000 and many of those CNG stations are limited to fleet service only. Discussion in this paper concentrates on CNG flow measurement for fuel dispensers. Since the regulatory changes and market demands affect the flow metering and dispenser station design those aspects are discussed. The CNG industry faces a number of challenges.

  12. Building America Whole-House Solutions for New Homes: CDC Realty...

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

    attics, solar water heating, tight air sealing, and rigid foam exterior sheathing. ... Building America Whole-House Solutions for New Homes: David Weekely Homes, Houston, Texas

  13. Building America Top Innovations 2013 Profile Window Replacement, Rehabilitation, & Repair Guide

    SciTech Connect (OSTI)

    none,

    2013-09-01

    In this Top Innovation profile, Building Science Corporation guides contractors through several options for repairing or replacing old windows to improve air sealing and thermal performance.

  14. Building America Whole-House Solutions for New Homes: Tom Walsh...

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

    who worked with Building America research partner BIRA to design HERS 59 homes with ducts in conditioned space in dropped ceiling soffits, extensive air sealing, and extensve...

  15. Building America Webinar: Ventilation in Multifamily Buildings...

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

    ventilation strategies for multifamily buildings, including how to successfully implement those strategies through smart design, specification, and construction techniques. ...

  16. A New Approach for Fingerprint Image Compression

    SciTech Connect (OSTI)

    Mazieres, Bertrand

    1997-12-01

    The FBI has been collecting fingerprint cards since 1924 and now has over 200 million of them. Digitized with 8 bits of grayscale resolution at 500 dots per inch, it means 2000 terabytes of information. Also, without any compression, transmitting a 10 Mb card over a 9600 baud connection will need 3 hours. Hence we need a compression and a compression as close to lossless as possible: all fingerprint details must be kept. A lossless compression usually do not give a better compression ratio than 2:1, which is not sufficient. Compressing these images with the JPEG standard leads to artefacts which appear even at low compression rates. Therefore the FBI has chosen in 1993 a scheme of compression based on a wavelet transform, followed by a scalar quantization and an entropy coding : the so-called WSQ. This scheme allows to achieve compression ratios of 20:1 without any perceptible loss of quality. The publication of the FBI specifies a decoder, which means that many parameters can be changed in the encoding process: the type of analysis/reconstruction filters, the way the bit allocation is made, the number of Huffman tables used for the entropy coding. The first encoder used 9/7 filters for the wavelet transform and did the bit allocation using a high-rate bit assumption. Since the transform is made into 64 subbands, quite a lot of bands receive only a few bits even at an archival quality compression rate of 0.75 bit/pixel. Thus, after a brief overview of the standard, we will discuss a new approach for the bit-allocation that seems to make more sense where theory is concerned. Then we will talk about some implementation aspects, particularly for the new entropy coder and the features that allow other applications than fingerprint image compression. Finally, we will compare the performances of the new encoder to those of the first encoder.

  17. Bunch length compression method for free electron lasers to avoid parasitic compressions

    DOE Patents [OSTI]

    Douglas, David R.; Benson, Stephen; Nguyen, Dinh Cong; Tennant, Christopher; Wilson, Guy

    2015-05-26

    A method of bunch length compression method for a free electron laser (FEL) that avoids parasitic compressions by 1) applying acceleration on the falling portion of the RF waveform, 2) compressing using a positive momentum compaction (R.sub.56>0), and 3) compensating for aberration by using nonlinear magnets in the compressor beam line.

  18. Building Science-Based Climate Maps - Building America Top Innovation...

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

    Building Science-Based Climate Maps - Building America Top Innovation Building Science-Based Climate Maps - Building America Top Innovation Photo showing climate zone maps based on ...

  19. Types of Lighting in Commercial Buildings - Building Size and...

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

    commercial buildings. Note: Data are for non-mall buildings. Source: Energy Information Administration, 2003 Commercial Buildings Energy Consumption Survey. Office buildings and...

  20. Building America Top Innovations Hall of Fame Profile - Building...

    Energy Savers [EERE]

    Building America Top Innovations Hall of Fame Profile - Building Energy Optimization Analysis Method (BEopt) Building America Top Innovations Hall of Fame Profile - Building Energy...

  1. Buildings","All Buildings with Water Heating","Water-Heating...

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

    5. Water-Heating Energy Sources, Number of Buildings, 1999" ,"Number of Buildings (thousand)" ,"All Buildings","All Buildings with Water Heating","Water-Heating Energy Sources Used ...

  2. Office Buildings: Consumption Tables

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

    and Type of Office Building Total (trillion Btu) per Building (million Btu) per Square Foot (thousand Btu) Dollars per Million Btu All Office Buildings 1,089 1,475 90.5 16.32...

  3. Building Energy Code

    Broader source: Energy.gov [DOE]

    In 2006 Iowa enacted H.F. 2361, requiring the State Building Commissioner to adopt energy conservation requirements based on a nationally recognized building energy code. The State Building Code...

  4. Buildings Performance Database Overview

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

    Overview Buildings.energy.gov/BPD BuildingsPerformanceDatabase@ee.doe.gov 2 * The BPD statistically analyzes trends in the energy performance and physical & operational characteristics of real commercial and residential buildings. The Buildings Performance Database 3 Design Principles * The BPD contains actual data on existing buildings - not modeled data or anecdotal evidence. * The BPD enables statistical analysis without revealing information about individual buildings. * The BPD cleanses

  5. Commercial Buildings Integration Program

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

    Buildings Integration Program Arah Schuur Program Manager arah.schuur@ee.doe.gov April 2, 2013 Building Technologies Office Program Peer Review 2 | Building Technologies Office eere.energy.gov Vision Commercial buildings are constructed, operated, renovated and transacted with energy performance in mind and net zero ready commercial buildings are common and cost-effective. Commercial Buildings Integration Program Mission Accelerate voluntary uptake of significant energy performance improvements

  6. Transforming Commercial Building Operations

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

    Transforming Commercial Building Operations Transforming Commercial Building Operations Ron Underhill Pacific Northwest National Laboratory ronald.underhill@pnnl.gov (509)375-9765 April 4, 2013 2 | Building Technologies Office eere.energy.gov * Most buildings are not commissioned (Cx) before occupancy, including HVAC and lighting systems * Buildings often are poorly operated and maintained leading to significant energy waste of 5 to 20%, even when they have building automation systems (BASs) *

  7. Hardware compression using common portions of data

    DOE Patents [OSTI]

    Chang, Jichuan; Viswanathan, Krishnamurthy

    2015-03-24

    Methods and devices are provided for data compression. Data compression can include receiving a plurality of data chunks, sampling at least some of the plurality of data chunks extracting a common portion from a number of the plurality of data chunks based on the sampling, and storing a remainder of the plurality of data chunks in memory.

  8. Education Highlights: Gasoline Compression Ignition | Argonne National

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

    Laboratory Education Highlights: Gasoline Compression Ignition Share Description Argonne intern Kendyl Partridge from Mississippi State University worked with Argonne mentor Steve Ciatti in studying gasoline compression ignition engines. This research will help engineers increase an engine's efficiency while reducing its environmental impact. Speakers Kendyl Partridge, Argonne National Laboratory Intern from Mississippi State University Duration 1:56 Topic Energy Energy efficiency Vehicles

  9. Office Buildings - Full Report

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

    administration building Insurance company headquarters building Local insurance agency Social services office Attorney's office Real estate sales office Government office State...

  10. Building Energy Code

    Broader source: Energy.gov [DOE]

    The California Building Standards Commission (BSC) is responsible for administering California's building standards adoption, publication, and implementation. Since 1989, the BSC has published tr...

  11. Model Building Energy Code

    Broader source: Energy.gov [DOE]

    The Energy Efficiency Building Performance Standards (EEBPS) are statewide minimum requirements that all new construction and additions to existing buildings must satisfy. Exceptions include...

  12. Building-Level Intensities

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

    . Electricity Consumption and Expenditure Intensities for Non-Mall Buildings, 2003" ,"Electricity Consumption",,,,,,"Electricity Expenditures" ,"per Building (thousand kWh)","per...

  13. Food Sales Buildings

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

    Sales Characteristics by Activity... Food Sales Food sales buildings are buildings that are used for retail or wholesale sale of food. Basic Characteristics See also: Equipment |...

  14. Buildings","Year Constructed"

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

    ... with Cooling ......",58474,2911,4383,7601,9325,11050,12849,10355 "Buildings with Water Heating .",56115,3130,4644,7154,9421,10182,12137,9446 "Buildings with Cooking ...

  15. Office Buildings - Energy Consumption

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

    Energy Consumption Office buildings consumed more than 17 percent of the total energy used by the commercial buildings sector (Table 4). At least half of total energy, electricity,...

  16. Buildings | Open Energy Information

    Open Energy Info (EERE)

    work, live, learn, govern, heal, worship, and play in buildings-and they require enormous energy resources. Related Links Buildings Gateway Retrieved from "http:en.openei.orgw...

  17. Building Energy Code

    Broader source: Energy.gov [DOE]

    The Connecticut Office of the State Building Inspector establishes and enforces building, electrical, mechanical, plumbing and energy code requirements by reviewing, developing, adopting and...

  18. Ryerson Building Science

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

    Ryerson Building Science -Zone Residence Project Summary - ZONE is a sustainable approach to infill housing in underutilized urban settings Constrained by buildings to the ...

  19. NREL: Buildings Research - Facilities

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

    building technologies and innovations that deliver significant energy savings in buildings, and the new facilities further extend those capabilities. In addition, the NREL...

  20. Ventilation in Multifamily Buildings

    Broader source: Energy.gov [DOE]

    This webinar, hosted by Building America,was conducted on November 1, 2011, and describes ways to save energy in buildings through effective ventilation techniques.

  1. Building Energy Code

    Broader source: Energy.gov [DOE]

    Public Act 093-0936 (Illinois Energy Conservation Code for Commercial Buildings) was signed into law in August, 2004. The Illinois Energy Conservation Code for Commercial Buildings became...

  2. Building America Technology Solutions for New and Existing Homes...

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

    Researchers from Alliance for Residential Building Initiative worked with two test homes in hot-dry climates to evaluate the in-situ performance of air-to-water heat pump systems, ...

  3. Building America Whole-House Solutions for Existing Homes: Passive...

    Energy Savers [EERE]

    this project, IBACOS, a U.S. Department of Energy Building America team, assessed a strategy for providing conditioned air to bedrooms when the bedroom doors are closed and...

  4. Energy End-Use Intensities in Commercial Buildings

    Gasoline and Diesel Fuel Update (EIA)

    and stored using mechanical pumps or fans to circulate heat-laden fluids or air between solar collectors and the building. Examples include the use of solar collectors for water...

  5. Test report for initial test of 6266 Building filter assemblies

    SciTech Connect (OSTI)

    Prather, M.C.

    1994-08-01

    This is the test report for the initial test of the Waste Sampling and Characterization Facility (WSCF) 6266 Building high efficiency particulate air (HEPA) filter assemblies. This supports the start-up of WSCF.

  6. Building Energy Modeling Overview - 2015 BTO Peer Review | Department...

    Energy Savers [EERE]

    The building has an advanced ventilated double facade and uses low-energy underfloor air distribution and is designed to achieve energy savings of 30% below code.
    Image ...

  7. Building Energy Modeling Overview - 2014 BTO Peer Review | Department...

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

    The building has an advanced ventilated double facade and uses low-energy underfloor air distribution and is designed to achieve energy savings of 30% below code.
    Image ...

  8. Critical Question #1: How Do We Retrofit the Tough Buildings?

    Broader source: Energy.gov [DOE]

    What are strategies in designing air sealing and insulation solutions for energy retrofits of the more challenging buildings? What are some examples of durable solutions that are relatively inexpensive? What hasn't worked and why? What looks promising?

  9. 1999 CBECS Principal Building Activities

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

    Data Reports > 2003 Building Characteristics Overview A Look at Building Activities in the 1999 Commercial Buildings Energy Consumption Survey The Commercial Buildings Energy...

  10. Federal Buildings Supplemental Survey -- Overview

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

    Buildings The Federal Buildings Supplemental Survey 1993 provides building-level energy-related characteristics for a special sample of commercial buildings owned by the...

  11. Health Care Buildings: Equipment Table

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

    Equipment Table Buildings, Size and Age Data by Equipment Types for Health Care Buildings Number of Buildings (thousand) Percent of Buildings Floorspace (million square feet)...

  12. Breakthrough Video: Desiccant Enhanced Evaporative Air Conditioning

    SciTech Connect (OSTI)

    2012-01-01

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

  13. Furnace Blower Performance Improvements - Building America Top Innovation |

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

    Department of Energy Furnace Blower Performance Improvements - Building America Top Innovation Furnace Blower Performance Improvements - Building America Top Innovation This photo shows a circular-shaped blower fan for furnaces and air conditioners. As homeowners switch on their forced-air furnaces in preparation for cold weather, they may be unaware of how furnace blowers can impact HVAC efficiency. In fact, studies show that the most common blowers have efficiencies of only 10%-15%.

  14. Commercial Buildings High Performance Rooftop Unit Challenge

    SciTech Connect (OSTI)

    2011-12-16

    The U.S. Department of Energy (DOE) and the Commercial Building Energy Alliances (CBEAs) are releasing a new design specification for high performance rooftop air conditioning units (RTUs). Manufacturers who develop RTUs based on this new specification will find strong interest from the commercial sector due to the energy and financial savings.

  15. PHELIX for flux compression studies

    SciTech Connect (OSTI)

    Turchi, Peter J; Rousculp, Christopher L; Reinovsky, Robert E; Reass, William A; Griego, Jeffrey R; Oro, David M; Merrill, Frank E

    2010-06-28

    PHELIX (Precision High Energy-density Liner Implosion eXperiment) is a concept for studying electromagnetic implosions using proton radiography. This approach requires a portable pulsed power and liner implosion apparatus that can be operated in conjunction with an 800 MeV proton beam at the Los Alamos Neutron Science Center. The high resolution (< 100 micron) provided by proton radiography combined with similar precision of liner implosions driven electromagnetically can permit close comparisons of multi-frame experimental data and numerical simulations within a single dynamic event. To achieve a portable implosion system for use at high energy-density in a proton laboratory area requires sub-megajoule energies applied to implosions only a few cms in radial and axial dimension. The associated inductance changes are therefore relatively modest, so a current step-up transformer arrangement is employed to avoid excessive loss to parasitic inductances that are relatively large for low-energy banks comprising only several capacitors and switches. We describe the design, construction and operation of the PHELIX system and discuss application to liner-driven, magnetic flux compression experiments. For the latter, the ability of strong magnetic fields to deflect the proton beam may offer a novel technique for measurement of field distributions near perturbed surfaces.

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

    SciTech Connect (OSTI)

    Rudd, A.

    2014-09-01

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

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

    SciTech Connect (OSTI)

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

    2013-01-01

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

  18. Better Buildings Neighborhood Program

    Broader source: Energy.gov [DOE]

    U.S. Department of Energy Better Buildings Neighborhood Program: Business Models Guide, October 27, 2011.

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

    SciTech Connect (OSTI)

    Rudd, Armin

    2014-09-01

    This research project focused on evaluation of air transfer between the garage and living space in a single-family detached home constructed by a production homebuilder in compliance with the 2009 International Residential Code and the 2009 International Energy Conservation Code. The project gathered important information about the performance of whole-building ventilation systems and garage ventilation systems as they relate to minimizing flow of contaminated air from garage to living space. A series of 25 multi-point fan pressurization tests and additional zone pressure diagnostic testing characterized the garage and house air leakage, the garage-to-house air leakage, and garage and house pressure relationships to each other and to outdoors using automated fan pressurization and pressure monitoring techniques. While the relative characteristics of this house may not represent the entire population of new construction configurations and air tightness levels (house and garage) throughout the country, the technical approach was conservative and should reasonably extend the usefulness of the results to a large spectrum of house configurations from this set of parametric tests in this one house. Based on the results of this testing, the two-step garage-to-house air leakage test protocol described above is recommended where whole-house exhaust ventilation is employed.

  20. Compressed Hydrogen Storage Workshop Agenda | Department of Energy

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

    Compressed Hydrogen Storage Workshop Agenda Compressed Hydrogen Storage Workshop Agenda Agenda for the first day of the R&D Strategies for Compressed, Cryo-Compressed and Cryo-Sorbent Hydrogen Storage Technologies Workshops on February 14 and 15, 2011. PDF icon compressed_hydrogen2011_day1_agenda.pdf More Documents & Publications Cryogenic Hydrogen Storage Systems Workshop Agenda Research and Development Strategies for Compressed & Cryo-Hydrogen Storage Systems - Workshop Summary

  1. General Compression Looks at Energy Storage from a Different Angle |

    Office of Environmental Management (EM)

    Department of Energy General Compression Looks at Energy Storage from a Different Angle General Compression Looks at Energy Storage from a Different Angle February 3, 2011 - 3:36pm Addthis Image of the General Compression CAES system | courtesy of General Compression, Inc. Image of the General Compression CAES system | courtesy of General Compression, Inc. April Saylor April Saylor Former Digital Outreach Strategist, Office of Public Affairs Earlier this week, we told you about a new company

  2. Laboratory Evaluation of Air Flow Measurement Methods for Residential HVAC

    Office of Scientific and Technical Information (OSTI)

    Returns (Technical Report) | SciTech Connect SciTech Connect Search Results Technical Report: Laboratory Evaluation of Air Flow Measurement Methods for Residential HVAC Returns Citation Details In-Document Search Title: Laboratory Evaluation of Air Flow Measurement Methods for Residential HVAC Returns This project improved the accuracy of air flow measurements used in commissioning California heating and air conditioning systems in Title 24 (Building and Appliance Efficiency Standards),

  3. Air exchange effectiveness of conventional and task ventilation for offices

    SciTech Connect (OSTI)

    Fisk, W.J.; Faulkner, D.; Prill, R.J.

    1991-12-01

    Air quality and comfort complaints within large buildings are often attributed to air distribution problems. We define three air exchange effectiveness parameters related to air distribution. The first two indicate the indoor air flow pattern (i.e., the extent of short circuiting, mixing, or displacement flow) for an entire building or region. The third parameter is most useful for assessments of the spatial variability of ventilation. We also define the air diffusion effectiveness which indicates the air flow pattern within specific rooms or sections of buildings. The results of measurements of these parameters in US office buildings by the authors and other researchers are reviewed. Almost all measurements indicate very limited short circuiting or displacement flow between locations of air supply and removal. However, a moderate degree of short circuiting is evident from a few measurements in rooms with heated supply air. The results of laboratory-based measurements by the authors are consistent with the field data. Our measurements in office buildings do indicate that ventilation rates can vary substantially between indoor locations, probably due to variation in air supply rates between locations rather than variation in the indoor air flow patterns. One possible method of improving air distribution is to employ task ventilation with air supplied closer to the occupant`s breathing zone. We have evaluated two task ventilation systems in a laboratory setting. During most operating conditions, these systems did not provide a region of substantially increased ventilation where occupants breath. However, both systems are capable of providing substantially enhanced ventilation at the breathing zone under some operating conditions. Therefore, task ventilation is a potential option for using ventilation air more effectively.

  4. Air exchange effectiveness of conventional and task ventilation for offices

    SciTech Connect (OSTI)

    Fisk, W.J.; Faulkner, D.; Prill, R.J.

    1991-12-01

    Air quality and comfort complaints within large buildings are often attributed to air distribution problems. We define three air exchange effectiveness parameters related to air distribution. The first two indicate the indoor air flow pattern (i.e., the extent of short circuiting, mixing, or displacement flow) for an entire building or region. The third parameter is most useful for assessments of the spatial variability of ventilation. We also define the air diffusion effectiveness which indicates the air flow pattern within specific rooms or sections of buildings. The results of measurements of these parameters in US office buildings by the authors and other researchers are reviewed. Almost all measurements indicate very limited short circuiting or displacement flow between locations of air supply and removal. However, a moderate degree of short circuiting is evident from a few measurements in rooms with heated supply air. The results of laboratory-based measurements by the authors are consistent with the field data. Our measurements in office buildings do indicate that ventilation rates can vary substantially between indoor locations, probably due to variation in air supply rates between locations rather than variation in the indoor air flow patterns. One possible method of improving air distribution is to employ task ventilation with air supplied closer to the occupant's breathing zone. We have evaluated two task ventilation systems in a laboratory setting. During most operating conditions, these systems did not provide a region of substantially increased ventilation where occupants breath. However, both systems are capable of providing substantially enhanced ventilation at the breathing zone under some operating conditions. Therefore, task ventilation is a potential option for using ventilation air more effectively.

  5. An efficient compression scheme for bitmap indices

    SciTech Connect (OSTI)

    Wu, Kesheng; Otoo, Ekow J.; Shoshani, Arie

    2004-04-13

    When using an out-of-core indexing method to answer a query, it is generally assumed that the I/O cost dominates the overall query response time. Because of this, most research on indexing methods concentrate on reducing the sizes of indices. For bitmap indices, compression has been used for this purpose. However, in most cases, operations on these compressed bitmaps, mostly bitwise logical operations such as AND, OR, and NOT, spend more time in CPU than in I/O. To speedup these operations, a number of specialized bitmap compression schemes have been developed; the best known of which is the byte-aligned bitmap code (BBC). They are usually faster in performing logical operations than the general purpose compression schemes, but, the time spent in CPU still dominates the total query response time. To reduce the query response time, we designed a CPU-friendly scheme named the word-aligned hybrid (WAH) code. In this paper, we prove that the sizes of WAH compressed bitmap indices are about two words per row for large range of attributes. This size is smaller than typical sizes of commonly used indices, such as a B-tree. Therefore, WAH compressed indices are not only appropriate for low cardinality attributes but also for high cardinality attributes.In the worst case, the time to operate on compressed bitmaps is proportional to the total size of the bitmaps involved. The total size of the bitmaps required to answer a query on one attribute is proportional to the number of hits. These indicate that WAH compressed bitmap indices are optimal. To verify their effectiveness, we generated bitmap indices for four different datasets and measured the response time of many range queries. Tests confirm that sizes of compressed bitmap indices are indeed smaller than B-tree indices, and query processing with WAH compressed indices is much faster than with BBC compressed indices, projection indices and B-tree indices. In addition, we also verified that the average query response time is proportional to the index size. This indicates that the compressed bitmap indices are efficient for very large datasets.

  6. Building Diagnostic Market Deployment - Final Report

    SciTech Connect (OSTI)

    Katipamula, S.; Gayeski, N.

    2012-04-30

    Operational faults are pervasive across the commercial buildings sector, wasting energy and increasing energy costs by up to about 30% (Mills 2009, Liu et al. 2003, Claridge et al. 2000, Katipamula and Brambley 2008, and Brambley and Katipamula 2009). Automated fault detection and diagnostic (AFDD) tools provide capabilities essential for detecting and correcting these problems and eliminating the associated energy waste and costs. The U.S. Department of Energy's (DOE) Building Technology Program (BTP) has previously invested in developing and testing of such diagnostic tools for whole-building (and major system) energy use, air handlers, chillers, cooling towers, chilled-water distribution systems, and boilers. These diagnostic processes can be used to make the commercial buildings more energy efficient. The work described in this report was done as part of a Cooperative Research and Development Agreement (CRADA) between the U.S. Department of Energy's Pacific Northwest National Laboratory (PNNL) and KGS Building LLC (KGS). PNNL and KGS both believe that the widespread adoption of AFDD tools will result in significant reduction to energy and peak energy consumption. The report provides an introduction and summary of the various tasks performed under the CRADA. The CRADA project had three major focus areas: (1) Technical Assistance for Whole Building Energy Diagnostician (WBE) Commercialization, (2) Market Transfer of the Outdoor Air/Economizer Diagnostician (OAE), and (3) Development and Deployment of Automated Diagnostics to Improve Large Commercial Building Operations. PNNL has previously developed two diagnostic tools: (1) whole building energy (WBE) diagnostician and (2) outdoor air/economizer (OAE) diagnostician. WBE diagnostician is currently licensed non-exclusively to one company. As part of this CRADA, PNNL developed implementation documentation and provided technical support to KGS to implement the tool into their software suite, Clockworks. PNNL also provided validation data sets and the WBE software tool to validate the KGS implementation. OAE diagnostician automatically detects and diagnoses problems with outdoor air ventilation and economizer operation for air handling units (AHUs) in commercial buildings using data available from building automation systems (BASs). As part of this CRADA, PNNL developed implementation documentation and provided technical support to KGS to implement the tool into their software suite. PNNL also provided validation data sets and the OAE software tool to validate the KGS implementation. Finally, as part of this CRADA project, PNNL developed new processes to automate parts of the re-tuning process and transfer those process to KGS for integration into their software product. The transfer of DOE-funded technologies will transform the commercial buildings sector by making buildings more energy efficient and also reducing the carbon footprint from the buildings. As part of the CRADA with PNNL, KGS implemented the whole building energy diagnostician, a portion of outdoor air economizer diagnostician and a number of measures that automate the identification of re-tuning measures.

  7. The Home Depot Upgrades its Corporate Building Prototype

    SciTech Connect (OSTI)

    none,

    2013-03-01

    The Home Depot partnered with the Department of Energy (DOE) to develop and implement solutions to build new, low-energy buildings that are at least 50% below Standard 90.1-2007 of the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE), the American National Standards Institute (ANSI), and the Illuminating Engineering Society of North America (IESNA) as part of DOEs Commercial Building Partnerships (CBP) Program.

  8. Building America Top Innovations 2014 Profile: California Energy Standards

    Office of Scientific and Technical Information (OSTI)

    Recognize the Importance of Filter Selection () | SciTech Connect : Building America Top Innovations 2014 Profile: California Energy Standards Recognize the Importance of Filter Selection Citation Details In-Document Search Title: Building America Top Innovations 2014 Profile: California Energy Standards Recognize the Importance of Filter Selection This 2014 Top Innovation profile describes Building America research on HVAC air filter sizing that prompted a change in the California

  9. Exterior Rigid Insulation Best Practices - Building America Top Innovation

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

    | Department of Energy Exterior Rigid Insulation Best Practices - Building America Top Innovation Exterior Rigid Insulation Best Practices - Building America Top Innovation Effec guid-exterior rigid insulation.jpg For years, Building America research teams have advocated using the thermal, air, and vapor properties of rigid foam sheathing insulation to improve walls. Several teams earned a 2013 Top Innovation award for their research into this technology. The NorthernSTAR team's

  10. Building America Expert Meeting: Code Challenges with Multifamily Area

    Energy Savers [EERE]

    Separation Walls | Department of Energy Code Challenges with Multifamily Area Separation Walls Building America Expert Meeting: Code Challenges with Multifamily Area Separation Walls This Building America Expert Meeting was conducted by the IBACOS team on Sept. 29, 2014, and focused on air sealing of area separation wall assemblies in multifamily buildings. This is an identified barrier that limits the ability of builders to cost effectively achieve higher energy efficiency and quality

  11. Building America Technology Solutions Case Study: Sealed Crawled Spaces

    Energy Savers [EERE]

    with Integrated Whole-House Ventilation in a Cold Climate | Department of Energy Sealed Crawled Spaces with Integrated Whole-House Ventilation in a Cold Climate Building America Technology Solutions Case Study: Sealed Crawled Spaces with Integrated Whole-House Ventilation in a Cold Climate The Building America team Consortium for Advanced Residential Buildings (CARB) investigated a hybrid ventilation method that included the exhaust air from the crawl space as part of an ASHRAE

  12. Building America Technology Solutions for New and Existing Homes: Apartment

    Energy Savers [EERE]

    Compartmentalization with an Aerosol-Based Sealing Process | Department of Energy Apartment Compartmentalization with an Aerosol-Based Sealing Process Building America Technology Solutions for New and Existing Homes: Apartment Compartmentalization with an Aerosol-Based Sealing Process In this study, the Consortium for Advanced Residential Buildings team demonstrated the automated air sealing and compartmentalization of buildings through the use of an aerosolized sealant developed by the

  13. Building America Technology Solutions for New and Existing Homes: Moisture

    Energy Savers [EERE]

    Management of High-R Walls | Department of Energy Management of High-R Walls Building America Technology Solutions for New and Existing Homes: Moisture Management of High-R Walls This project by Building Science Corporation focuses on how eight high-R walls handle the three main sources of moisture-construction moisture, air leakage condensation, and bulk water leaks. PDF icon Moisture Management of High-R Walls More Documents & Publications Building America Technology Solutions for New

  14. Building America 2013 Top Innovations | Department of Energy

    Energy Savers [EERE]

    America 2013 Top Innovations Building America 2013 Top Innovations This page provides a listing of and links to Building America Top Innovations awarded in 2013. Advanced Technologies and Practices Building Science Solutions Thermal Enclosure: Next Generation Advanced Framing Optimized Comfort Systems: Buried and Encapsulated Ducts Furnace Blower Performance Improvements High Efficiency Window Air Conditioners House-as-a-System Business Case Zero Energy Ready Single Family Homes Effective

  15. Buildings Energy Data Book: 7.1 National Legislation

    Buildings Energy Data Book [EERE]

    6 Energy Policy Act of 1992, Building Energy Codes --Each State must certify to the Secretary of Energy whether its energy efficiency standards with respect to residential and commercial building codes meet or exceed those of the Council of American Building Officials (CABO) Model Energy Code, 1992, and of the American Society of Heating, Refrigerating, and Air-Conditioning Engineers, respectively. --Requires DOE to provide technical assistance and incentive funding to the States to promote

  16. Energy Efficient Buildings Hub

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

    Henry C. Foley April 3, 2013 Presentation at the U.S. DOE Building Technologies Office Peer Review Meeting Purpose and Objectives * Problem Statement - Building energy efficiency has not increased in recent decades compared to other sectors especially transportation - Building component technologies have become more energy efficient but buildings as a whole have not * Impact of Project - A 20% reduction in commercial building energy use could save the nation four quads of energy annually *

  17. Commercial Buildings Consortium

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

    Commercial Buildings Consortium Sandy Fazeli National Association of State Energy Officials sfazeli@naseo.org; 703-299-8800 ext. 17 April 2, 2013 Supporting Consortium for the U.S. Department of Energy Net-Zero Energy Commercial Buildings Initiative 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: * Many energy savings opportunities in commercial buildings remain untapped, underserved by the conventional "invest-design-build- operate"

  18. Commercial Buildings Integration (CBI)

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

    1 | Energy Efficiency and Renewable Energy eere.energy.gov Arah Schuur Program Manager Commercial Buildings Integration (CBI) April 22, 2014 Commercial Buildings Integration (CBI) 2 Commercial Buildings Integration (CBI) Mission/Vision CBI Mission Accelerate voluntary uptake of significant energy performance improvements in existing and new commercial buildings. CBI Vision: A commercial buildings market where energy performance is a key consideration during construction, operation, renovation,

  19. Better Buildings Residential

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

    Residential 2014 Building Technologies Office Peer Review Danielle Sass Byrnett danielle.byrnett@ee.doe.gov U.S. Department of Energy 2 Project Summary: Better Buildings Residential (BBR) Timeline: Start date: FY11 Planned end date: ongoing Key Milestones 1. Better Buildings Neighborhood Program, Fall 2010 2. Home Energy Score, 2011 3. Home Performance with ENERGY STAR to DOE, Oct. 2011 4. Better Buildings Residential Network, April 2013 5. Better Buildings Residential Program Solution Center

  20. Better Buildings Workforce Activities

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

    BETTER BUILDINGS WORKFORCE ACTIVITIES  Benjamin Goldstein, Better Buildings Workforce Project Manager, U.S. Department of Energy April 24, 2014 Housekeeping and Overview 1) Restroom location 2) Cell phones-silent please 3) Presentation format  15 min presentation; 15 minute Q&A (reviewers first, then audience) 4) Presenters  Phil Coleman, LBNL: Better Buildings Workforce Guidelines (Energy Manager and Federal Facility Manager)  Marta Milan, Waypoint Building: Commercial Buildings

  1. Building Energy Codes

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

    David Cohan Program Manager Building Energy Codes April 22, 2014 Presentation Outline * Mission * Goals * Program Organization * Strategies/Roles * Near-Term Focus * Measuring Progress/Outcomes/Impacts * Priorities for FY15 and Beyond 2 Building Energy Codes - Mission Support the building energy code and standard development, adoption, implementation and enforcement processes to achieve the maximum practicable improvements in building energy efficiency 3 Building Energy Codes Program - Goals

  2. Buildings Energy Data Book

    Buildings Energy Data Book [EERE]

    Current and Past EditionsGlossaryPopular TablesQuery Tools Contact Us Search What Is the Buildings Energy Data Book? The Data Book includes statistics on residential and commercial building energy consumption. Data tables contain statistics related to construction, building technologies, energy consumption, and building characteristics. The Building Technologies Program within the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy developed this resource to provide a

  3. Buildings Energy Data Book

    Buildings Energy Data Book [EERE]

    4.1 Federal Buildings Energy Consumption 4.2 Federal Buildings and Facilities Characteristics 4.3 Federal Buildings and Facilities Expenditures 4.4 Legislation Affecting Energy Consumption of Federal Buildings and Facilities 5Envelope and Equipment 6Energy Supply 7Laws, Energy Codes, and Standards 8Water 9Market Transformation Glossary Acronyms and Initialisms Technology Descriptions Building Descriptions Other Data Books Biomass Energy Transportation Energy Power Technologies Hydrogen Download

  4. Buildings Energy Data Book

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

    Building Type Definition Includes These Sub-Categories from 2003 CBECS Questionnaire Education Buildings used for academic or technical classroom instruction, such as elementary, middle, or high schools, and classroom buildings on college or university campuses. Buildings on education campuses for which the main use is not classroom are included in the category relating to their use. For example, administration buildings are part of "Office", dormitories are "Lodging", and

  5. A Multicomponent Blend as a Diesel Fuel Surrogate for Compression...

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

    A Multicomponent Blend as a Diesel Fuel Surrogate for Compression Ignition Engine Applications Title A Multicomponent Blend as a Diesel Fuel Surrogate for Compression Ignition...

  6. H2A Delivery: Forecourt Compression & Storage Optimization (Part...

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

    Delivery: Forecourt Compression & Storage Optimization (Part II) H2A Delivery: Forecourt Compression & Storage Optimization (Part II) Presentation by Matthew Hooks of TIAX at the...

  7. Pdc - The Worldwide Leader in Hydrogen Refueling Station Compression...

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

    Pdc - The Worldwide Leader in Hydrogen Refueling Station Compression Pdc - The Worldwide Leader in Hydrogen Refueling Station Compression This presentation by Matther Weaver of Pdc...

  8. Characterization of Dual-Fuel Reactivity Controlled Compression...

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

    Dual-Fuel Reactivity Controlled Compression Ignition (RCCI) Using Hydrated Ethanol and Diesel Fuel Characterization of Dual-Fuel Reactivity Controlled Compression Ignition (RCCI)...

  9. Rapid Compression Machine ? A Key Experimental Device to Effectively...

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

    Compression Machine A Key Experimental Device to Effectively Collaborate with Basic Energy Sciences Rapid Compression Machine A Key Experimental Device to Effectively...

  10. Business Case for Compressed Natural Gas in Municipal Fleets...

    Open Energy Info (EERE)

    Business Case for Compressed Natural Gas in Municipal Fleets Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Business Case for Compressed Natural Gas in Municipal Fleets...

  11. Guidelines for Conversion of Diesel Buses to Compressed Natural...

    Open Energy Info (EERE)

    Conversion of Diesel Buses to Compressed Natural Gas Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Guidelines for Conversion of Diesel Buses to Compressed Natural Gas...

  12. Light-Duty Reactivity Controlled Compression Ignition Drive Cycle...

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

    Light-Duty Reactivity Controlled Compression Ignition Drive Cycle Fuel Economy and Emissions Estimates Light-Duty Reactivity Controlled Compression Ignition Drive Cycle Fuel ...

  13. Graphene physics and insulator-metal transition in compressed...

    Office of Scientific and Technical Information (OSTI)

    Graphene physics and insulator-metal transition in compressed hydrogen Title: Graphene physics and insulator-metal transition in compressed hydrogen Authors: Naumov, Ivan I. ; ...

  14. Open Issues in the Development of Safety Standards for Compressed...

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

    Issues in the Development of Safety Standards for Compressed Hydrogen Storage at SAE-International Open Issues in the Development of Safety Standards for Compressed Hydrogen...

  15. Pressure Relief Devices for Compressed Hydrogen Vehicle Fuel...

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

    Pressure Relief Devices for Compressed Hydrogen Vehicle Fuel Containers Pressure Relief Devices for Compressed Hydrogen Vehicle Fuel Containers These slides were presented at the...

  16. 2016 - LNG Export, Compressed Natural Gas (CNG), Re-Exports ...

    Energy Savers [EERE]

    - LNG Export, Compressed Natural Gas (CNG), Re-Exports & Long Term Natural Gas Applications 2016 - LNG Export, Compressed Natural Gas (CNG), Re-Exports & Long Term Natural Gas ...

  17. 2013 Hydrogen Compression, Storage, and Dispensing Cost Reduction...

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

    Hydrogen Compression, Storage, and Dispensing Cost Reduction Workshop Final Report 2013 Hydrogen Compression, Storage, and Dispensing Cost Reduction Workshop Final Report...

  18. Technical Assessment: Cryo-Compressed Hydrogen Storage for Vehicular...

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

    Cryo-Compressed Hydrogen Storage: Performance and Cost Review Technical Assessment of Cryo-Compressed Hydrogen Storage Tank Systems for Automotive Applications High-Pressure Tube ...

  19. Technical Assessment of Cryo-Compressed Hydrogen Storage Tank...

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

    Cryo-Compressed Hydrogen Storage Tank Systems for Automotive Applications Technical Assessment of Cryo-Compressed Hydrogen Storage Tank Systems for Automotive Applications...

  20. Defect Analysis of Vehicle Compressed Natural Gas Composite Cylinder...

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

    Defect Analysis of Vehicle Compressed Natural Gas Composite Cylinder Defect Analysis of Vehicle Compressed Natural Gas Composite Cylinder These slides were presented at the Onboard...