Sample records for hvac upgrade cxs

  1. Building America Expert Meeting: Transitioning Traditional HVAC...

    Energy Savers [EERE]

    validate the general business models for traditional HVAC companies and whole house energy upgrade companies Review preliminary findings on the differences between the structure...

  2. PHOENIX ENERGIZES LIGHT RAIL CORRIDOR WITH UPGRADES | Department...

    Energy Savers [EERE]

    Residential energy upgrade projects typically included: insulation; air and duct sealing; heating, ventilation, and air conditioning (HVAC) upgrades; sunscreens; and solar water...

  3. HVAC Program

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist.NewofGeothermal848 Unlimited Release1/2 HR 1.00 $ ForHVAC

  4. Renovating Residential HVAC Systems HVAC Systems

    E-Print Network [OSTI]

    - 1 - LBNL 57406 Renovating Residential HVAC Systems HVAC Systems J.A. McWilliams and I.S. Walker Environmental Energy Technologies Division April 2005 ERNEST ORLANDO LAWRENCE BERKELEY NATIONAL LABORATORY #12 Laboratory is an equal opportunity employer. This work was supported by the Assistant Secretary for Energy

  5. Building America Expert Meeting Report: Transitioning Traditional HVAC Contractors to Whole House Performance Contractors

    SciTech Connect (OSTI)

    Burdick, A.

    2011-10-01T23:59:59.000Z

    This report outlines findings resulting from a U.S. Department of Energy Building America expert meeting to determine how HVAC companies can transition from a traditional contractor status to a service provider for whole house energy upgrade contracting. IBACOS has embarked upon a research effort under the Building America Program to understand business impacts and change management strategies for HVAC companies. HVAC companies can implement these strategies in order to quickly transition from a 'traditional' heating and cooling contractor to a service provider for whole house energy upgrade contracting. Due to HVAC service contracts, which allow repeat interaction with homeowners, HVAC companies are ideally positioned in the marketplace to resolve homeowner comfort issues through whole house energy upgrades. There are essentially two primary ways to define the routes of transition for an HVAC contractor taking on whole house performance contracting: (1) Sub-contracting out the shell repair/upgrade work; and (2) Integrating the shell repair/upgrade work into their existing business. IBACOS held an Expert Meeting on the topic of Transitioning Traditional HVAC Contractors to Whole House Performance Contractors on March 29, 2011 in San Francisco, CA. The major objectives of the meeting were to: Review and validate the general business models for traditional HVAC companies and whole house energy upgrade companies Review preliminary findings on the differences between the structure of traditional HVAC Companies and whole house energy upgrade companies Seek industry input on how to structure information so it is relevant and useful for traditional HVAC contractors who are transitioning to becoming whole house energy upgrade contractors Seven industry experts identified by IBACOS participated in the session along with one representative from the National Renewable Energy Laboratory (NREL). The objective of the meeting was to validate the general operational profile of an integrated whole house performance contracting company and identify the most significant challenges facing a traditional HVAC contractor looking to transition to a whole house performance contractor. To facilitate the discussion, IBACOS divided the business operations profile of a typical integrated whole house performance contracting company (one that performs both HVAC and shell repair/upgrade work) into seven Operational Areas with more detailed Business Functions and Work Activities falling under each high-level Operational Area. The expert panel was asked to review the operational profile or 'map' of the Business Functions. The specific Work Activities within the Business Functions identified as potential transition barriers were rated by the group relative to the value in IBACOS creating guidance ensuring a successful transition and the relative difficulty in executing.

  6. HVAC Maintenance and Technologies

    Broader source: Energy.gov [DOE]

    Presentation covers the HVAC maintenance and technologies, and is given at the Spring 2010 Federal Utility Partnership Working Group (FUPWG) meeting in Providence, Rhode Island.

  7. MAPPING HVAC SYSTEMS FOR SIMULATION IN ENERGYPLUS

    E-Print Network [OSTI]

    Basarkar, Mangesh

    2013-01-01T23:59:59.000Z

    LBNL-XXXXX MAPPING HVAC SYSTEMS FOR SIMULATION IN ENERGYPLUSof California. MAPPING HVAC SYSTEMS FOR SIMULATION INpresent a conventional view of HVAC systems to the user, and

  8. Wireless Demand Response Controls for HVAC Systems

    E-Print Network [OSTI]

    Federspiel, Clifford

    2010-01-01T23:59:59.000Z

    Response Controls for HVAC Systems Clifford Federspiel,tests. Figure 5: Specific HVAC electric power consumptioncontrol, demand response, HVAC, wireless Executive Summary

  9. Measuring Advances in HVAC Distribution System Design

    E-Print Network [OSTI]

    Franconi, E.

    2011-01-01T23:59:59.000Z

    Gabel and Andresen, HVAC Secondary Toolkil. Atlanta: ASHRAE,P_02 Measuring Advances in HVAC Distribution System Designdesign and operation of the HVAC thermal distribution system

  10. CX-003856: Categorical Exclusion Determination | Department of...

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

    Determination CX-003856: Categorical Exclusion Determination Road Prison Geothermal Earth Coupled Heating, Ventilation and Air Conditioning (HVAC) Upgrade CX(s) Applied: B5.1...

  11. HVAC Installed Performance

    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 HVAC proper installation energy savings: over-promising or under-delivering?"

  12. Distributed scheduling for efficient HVAC precooling operations

    E-Print Network [OSTI]

    Yang, Su

    2014-01-01T23:59:59.000Z

    of supply and return fans for HVAC systems under di?erentOp- timal Scheduling of HVAC Pre-cooling Operations withScheduling for E?cient HVAC Pre-cooling Operations ? Yang

  13. Fault Detection and Diagnosis in Building HVAC Systems

    E-Print Network [OSTI]

    Najafi, Massieh

    2010-01-01T23:59:59.000Z

    Wright, “Condition monitoring in HVAC subsystems using firstmonitoring packaged HVAC equipment. ASHRAE Transactions”,Detection and Diagnosis of HVAC Systems Using Support Vector

  14. MODELING AND SIMULATION OF HVAC FAULTS IN ENERGYPLUS

    E-Print Network [OSTI]

    Basarkar, Mangesh

    2013-01-01T23:59:59.000Z

    Methodology for Secondary HVAC Systems, Doctoral Thesis,2002, Particulate Fouling of HVAC Heat Exchangers, Doctoraland diagnosis strategy for HVAC systems involving sensor

  15. Comparison of Building Energy Modeling Programs: HVAC Systems

    E-Print Network [OSTI]

    Zhou, Xin

    2014-01-01T23:59:59.000Z

    and Mehry Yazdanian. Comparisons of HVAC Simulations betweeninformation Comparison of HVAC System Simulations inCLT (kW) Comparison of HVAC System Simulations in Different

  16. Classroom HVAC: Improving ventilation and saving energy -- field study plan

    E-Print Network [OSTI]

    Apte, Michael G.; Faulkner, David; Hodgson, Alfred T.; Sullivan, Douglas P.

    2004-01-01T23:59:59.000Z

    in this study. Classroom HVAC: Improving Ventilation andV8doc.sas.com/sashtml. Classroom HVAC: Improving VentilationBerkeley, CA 94720. Classroom HVAC: Improving Ventilation

  17. HVAC component data modeling using industry foundation classes

    E-Print Network [OSTI]

    Bazjanac, Vladimir; Forester, James; Haves, Philip; Sucic, Darko; Xu, Peng

    2002-01-01T23:59:59.000Z

    HVAC Component Data Modeling Using Industry Foundationof a major extension of the HVAC part of the IFC data model.generic approach for handling HVAC components. This includes

  18. Co-simulation of innovative integrated HVAC systems in buildings

    E-Print Network [OSTI]

    Trcka, Marija

    2010-01-01T23:59:59.000Z

    Integrated Simulation for HVAC Per- formance Prediction:air-conditioning equipment models (HVAC BESTEST), volume 1:air-conditioning equipment models (HVAC BESTEST), volume 2:

  19. Modeling and Measurement Constraints in Fault Diagnostics for HVAC Systems

    E-Print Network [OSTI]

    Najafi, Massieh

    2010-01-01T23:59:59.000Z

    in Fault Diagnostics for HVAC Systems Massieh Najafi 1 ,tools for determining HVAC diagnostics, methods todetect faults in HVAC systems are still generally

  20. Variable Refrigerant Flow HVAC

    E-Print Network [OSTI]

    Jones, S.

    2013-01-01T23:59:59.000Z

    heat pump utilizing VFD Inverter Compressors and LEV’s Unlike conventional commercial and residential HVAC systems in the USA The predominate method of cooling and heating in the world ESL-KT-13-12-33 CATEE 2013: Clean Air Through Energy Efficiency... Conference, San Antonio, Texas Dec. 16-18 Heat Pump operation at lower ambient conditions -13 -4 5 17 23 32 41 470 0.2 0.4 0.6 0.8 1 1.2 Residential Heating Capacity at Low Temperatures MUZ-FE18NA MUZ-FE09NA MUZ-FE12NA Unitary Outdoor Temperature (F...

  1. HVAC Market Study:

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist.NewofGeothermal848 Unlimited Release1/2 HR 1.00 $ ForHVAC Market

  2. Strategy Guideline: HVAC Equipment Sizing

    SciTech Connect (OSTI)

    Burdick, A.

    2012-02-01T23:59:59.000Z

    The heating, ventilation, and air conditioning (HVAC) system is arguably the most complex system installed in a house and is a substantial component of the total house energy use. A right-sized HVAC system will provide the desired occupant comfort and will run efficiently. This Strategy Guideline discusses the information needed to initially select the equipment for a properly designed HVAC system. Right-sizing of an HVAC system involves the selection of equipment and the design of the air distribution system to meet the accurate predicted heating and cooling loads of the house. Right-sizing the HVAC system begins with an accurate understanding of the heating and cooling loads on a space; however, a full HVAC design involves more than just the load estimate calculation - the load calculation is the first step of the iterative HVAC design procedure. This guide describes the equipment selection of a split system air conditioner and furnace for an example house in Chicago, IL as well as a heat pump system for an example house in Orlando, Florida. The required heating and cooling load information for the two example houses was developed in the Department of Energy Building America Strategy Guideline: Accurate Heating and Cooling Load Calculations.

  3. Building HVAC Requirements Overview Page 4-1 4 Building HVAC Requirements

    E-Print Network [OSTI]

    Building HVAC Requirements ­ Overview Page 4-1 4 Building HVAC Requirements 4.1 Overview 4 conditioning (HVAC) systems. The requirements are presented in this chapter so that it may serve as a single. 2008 Residential Compliance Manual August 2009 #12;Page 4-2 Building HVAC Requirements ­ Overview 4

  4. HVAC's Variable Refrigerant Flow (VRF) Technology

    E-Print Network [OSTI]

    Jones, S.

    2012-01-01T23:59:59.000Z

    1 Comfort by Design Steve Jones Commercial Sales Manager for Mitsubishi Southwest Business Unit HVAC?s Variable Refrigerant Flow (VRF) Technology HVAC Industry Overview HVAC Market Dollar Volume $18 Billion Source:;NABH Research... Moveable Ductless 5 VRF Technology Overview 6 What is VRF Technology? Variable Refrigerant Flow More Comfort, Less Energy Usage 8 INVERTER-driven Compressor Time R oo m T em pe ra tur e ? Enables capacity operation as low as 4% ? Sizing...

  5. Pedernales Electric Cooperative- HVAC Rebate Program

    Broader source: Energy.gov [DOE]

    Pedernales Electric Cooperative offers equipment rebates to its members who install energy efficient HVAC equipment. Eligible equipment includes:

  6. CALIFORNIA ENERGY Small HVAC System Design Guide

    E-Print Network [OSTI]

    CALIFORNIA ENERGY COMMISSION Small HVAC System Design Guide DESIGNGUIDELINES October 2003 500;#12;Small HVAC System Design Guide Acknowledgements i Acknowledgements The products and outcomes presented; Darren Goody, PECI, Design Guide review. #12;Small HVAC System Design Guide Preface ii Preface The Small

  7. SIMULATION OF RESIDENTIAL HVAC SYSTEM PERFORMANCE

    E-Print Network [OSTI]

    1 LBNL-47622 SIMULATION OF RESIDENTIAL HVAC SYSTEM PERFORMANCE Walker, I., Siegel, J ..................................................... 9 #12;3 ABSTRACT In many parts of North America residential HVAC systems are installed outside of the simulations is that they are dynamic - which accounts for cyclic losses from the HVAC system and the effect

  8. Energirigtige pumpekoblinger i HVAC-systemer

    E-Print Network [OSTI]

    Energirigtige pumpekoblinger i HVAC-systemer PSO 2003 - FORSKNING & UDVIKLING I EFFEKTIV energieffektive HVAC-aggregater #12;InformationomProjektnr.:335-021 PROCESSEN: Projektet er gennemfĂžrt af en reguleringsprincipper, mens Exhausto har leveret HVAC-aggregat og knowhow inden for klimasystemer. Grundfos

  9. Energy Renovations: Volume 14: HVAC - A Guide for Contractors to Share with Homeowners

    SciTech Connect (OSTI)

    Gilbride, Theresa L.; Baechler, Michael C.; Hefty, Marye G.; Hand, James R.; Love, Pat M.

    2011-08-29T23:59:59.000Z

    This report was prepared by PNNL for DOE's Building America program and is intended as a guide that energy performance contractors can share with homeowners to describe various energy-efficient options for heating, cooling, and ventilating existing homes. The report provides descriptions of many common and not-so-common HVAC systems, including their advantages and disadvantages, efficiency ranges and characteristics of high-performance models, typical costs, and climate considerations. The report also provides decision trees and tables of useful information for homeowners who are making decisions about adding, replacing, or upgrading existing HVAC equipment in their homes. Information regarding home energy performance assessments (audits) and combustion safety issues when replacing HVAC equipment are also provided.

  10. Energy Efficiency Upgrades

    SciTech Connect (OSTI)

    Roby Williams

    2012-03-29T23:59:59.000Z

    The energy efficiency upgrades project at Hardin County General Hospital did not include research nor was it a demonstration project. The project enabled the hospital to replace outdated systems with modern efficient models. Hardin County General Hospital is a 501c3, nonprofit hospital and the sole community provider for Hardin and Pope Counties of Illinois. This project provided much needed equipment and facility upgrades that would not have been possible through locally generated funding. Task 1 was a reroofing of the hospital. The hospital architect designed the replacement to increase the energy efficiency of the hospital roof/ceiling structure. Task 2 was replacement and installation of a new more efficient CT scanner for the hospital. Included in the project was replacement of HVAC equipment for the entire radiological suite. Task 5 was a replacement and installation of a new higher capacity diesel-fueled emergency generator for the hospital replacing a 50+ year old gas-fired generator. Task 7 was the replacement of 50+ year-old walk-in cooler/freezer with a newer, energy efficient model. Task 8 was the replacement of 10+ year-old washing machines in the hospital laundry with higher capacity, energy efficient models. Task 9 was replacement of 50-year old single pane curtain window system with double-pane insulated windows. Additionally, insulation was added around ventilation systems and the curtain wall system.

  11. CALIFORNIA ENERGY Large HVAC Building

    E-Print Network [OSTI]

    CALIFORNIA ENERGY COMMISSION Large HVAC Building Survey Information Database of Buildings over 100 Energy Systems: Productivity and Building Science Program. This program was funded by the California of Portland Energy Conservation, Inc. Project Management: Cathy Higgins, Program Director for New Buildings

  12. Cooperative Control of Air Flow for HVAC Systems

    E-Print Network [OSTI]

    Shuai, Liu; Lihua, Xie

    2013-01-01T23:59:59.000Z

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

  13. Model-Based Hierarchical Optimal Control Design for HVAC Systems

    E-Print Network [OSTI]

    Maasoumy, Mehdi; Pinto, Alessandro; Sangiovanni-Vincentelli, Alberto

    2014-01-01T23:59:59.000Z

    trol algorithm design for hvac systems in energy efficientH.R. Sualem. Building and HVAC System simulation with theOPTIMAL CONTROL DESIGN FOR HVAC SYSTEMS Mehdi Maasoumy,

  14. Compression effects on pressure loss in flexible HVAC ducts

    E-Print Network [OSTI]

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

    2002-01-01T23:59:59.000Z

    to Determine Flow Resistance of HVAC Air Ducts and Fittings.Pressure Loss in Flexible HVAC Ducts Bass Abushakra, Ph.D.to Determine Flow Resistance of HVAC Air Ducts and Fittings.

  15. Thermovote: Participatory Sensing for Efficient Building HVAC Conditioning

    E-Print Network [OSTI]

    Cerpa, Alberto E.

    Thermovote: Participatory Sensing for Efficient Building HVAC Conditioning Varick L. Erickson, Measurement, Performance Keywords HVAC conditioning, PMV, thermal comfort, phones 1 Introduction Recently goal, the service that HVAC systems provide is arguably more important than reducing energy. Before we

  16. Comparison of Control Strategies for Energy Efficient Building HVAC Systems

    E-Print Network [OSTI]

    Maasoumy, Mehdi; Sangiovanni-Vincentelli, Alberto

    2014-01-01T23:59:59.000Z

    optimal control design for HVAC systems. In Dynamic SystemOpti- mal control of HVAC systems in the presence of imper-consumption minimization of hvac sys- tems using model

  17. Fouling of HVAC fin and tube heat exchangers

    E-Print Network [OSTI]

    Siegel, Jeffrey; Carey, Van P.

    2001-01-01T23:59:59.000Z

    air ? air ? part ? part FPI HVAC REFERENCES Anonymous, 1987,LBNL-47668 Fouling of HVAC Fin and Tube Heat ExchangersCIEE SPONSOR. FOULING OF HVAC FIN AND TUBE HEAT EXCHANGERS

  18. EECBG Success Story: HVAC Upgrade Saving Money, Protecting History...

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

    Saving Money, Protecting History November 2, 2010 - 5:37pm Addthis A new heating and cooling system at Chester County Historical Societys history center is saving the...

  19. EECBG Success Story: HVAC Upgrade Saving Money, Protecting History |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy China U.S.ContaminationJulySavannah River Site forCommunity'Departmentof

  20. HVAC upgrade saving money, protecting history | Department of Energy

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

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

  1. HVAC, Water Heating, and Appliances Overview - 2015 BTO Peer...

    Office of Environmental Management (EM)

    HVAC, Water Heater and Appliance R&D - 2014 BTO Peer Review Research & Development Roadmap: Emerging HVAC Technologies This thermoelastic system provides a promising...

  2. Improving efficiency of a vehicle HVAC system with comfort modeling...

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

    efficiency of a vehicle HVAC system with comfort modeling, zonal design, and thermoelectric devices Improving efficiency of a vehicle HVAC system with comfort modeling, zonal...

  3. Energy Efficient HVAC System for Distributed Cooling/Heating...

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

    Efficient HVAC System for Distributed CoolingHeating with Thermoelectric Devices Energy Efficient HVAC System for Distributed CoolingHeating with Thermoelectric Devices 2012 DOE...

  4. Building America Webinar: HVAC Right-Sizing Part 1-Calculating...

    Energy Savers [EERE]

    HVAC Right-Sizing Part 1-Calculating Loads Building America Webinar: HVAC Right-Sizing Part 1-Calculating Loads During this webinar, Building America Research Team IBACOS...

  5. Development of a High-Efficiency Zonal Thermoelectric HVAC System...

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

    a High-Efficiency Zonal Thermoelectric HVAC System for Automotive Applications Development of a High-Efficiency Zonal Thermoelectric HVAC System for Automotive Applications...

  6. Distributed scheduling for efficient HVAC precooling operations

    E-Print Network [OSTI]

    Yang, Su

    2014-01-01T23:59:59.000Z

    heating, ventilating and air conditioning. Springer, J. W.ventilation and air conditioning in buildings. Wiley, 2012.Ventilation and Air Conditioning (HVAC) systems’ in-building

  7. Columbia Water & Light- Residential HVAC Rebates

    Broader source: Energy.gov [DOE]

    Columbia Water & Light (CWL) provides residential customers with rebates on energy efficient HVAC equipment. Customers should submit the mechanical permit from a Protective Inspection, a copy...

  8. Measurements of Smoke Characteristics in HVAC Ducts 

    E-Print Network [OSTI]

    Wolin, Steven D; Ryder, Noah L; Leprince, Frederic; Milke, James; Mowrer, Frederick; Torero, Jose L

    2001-01-01T23:59:59.000Z

    The characteristics of smoke traveling in an HVAC duct have been observed along with the response of selected duct smoke detectors. The simulated HVAC system consists of a 9 m long duct, 0.45 m in diameter. An exhaust fan is placed at one end...

  9. 2013 Energy Code Changes That Effect the HVAC

    E-Print Network [OSTI]

    California at Davis, University of

    2013 Energy Code Changes That Effect the HVAC Industry Tav Commins Mechanical Engineer California Energy Commission #12;HVAC Mandatory Measures For All Newly Installed Residential HVAC Systems (New tons provided by air cooled chillers #12;Non Residential HVAC Measures Cooling Towers greater than 150

  10. Residential HVAC Indoor Air Quality(ASHRAE 62.2)

    E-Print Network [OSTI]

    Residential HVAC && Indoor Air Quality(ASHRAE 62.2) Tav Commins #12;Contact Information · Energy construction, Additions /Alterations · Nonresidential and Residential #12;Residential HVAC && Indoor Air Quality(ASHRAE 62.2) ·HVAC EfficiencyHVAC Efficiency ·Quality Installation (HERS Measures) S li b HERS R t

  11. Model Predictive Control of HVAC Systems: Implementation and Testing at the University of California, Merced

    E-Print Network [OSTI]

    Haves, Phillip

    2010-01-01T23:59:59.000Z

    Model Predictive Control of HVAC Systems:    Implementation and  air  conditioning  (HVAC)  account  for  27%  of  the reduction potential of HVAC systems with  active thermal 

  12. HVAC Modeling for Cost of Ownership Assessment in Biotechnology & Drugs Manufacturing

    E-Print Network [OSTI]

    Broomes, Peter; Dornfeld, David A

    2003-01-01T23:59:59.000Z

    2000 Broomes, Peter. , “HVAC Modeling for Cost of Ownership2000 Broomes, Peter. , “HVAC Results Comparison”, April,HVAC Modeling for Cost of Ownership Assessment in

  13. Investigation of IAQ-Relevant Surface Chemistry and Emissions on HVAC Filter Materials

    E-Print Network [OSTI]

    Destaillats, Hugo

    2010-01-01T23:59:59.000Z

    VOCs emitted by reactions of HVAC filters with ozone usingChemistry and Emissions on HVAC Filter Materials HugoChemistry and Emissions on HVAC Filter Materials Authors:

  14. Case study field evaluation of a systems approach to retrofitting a residential HVAC system

    E-Print Network [OSTI]

    Walker, Iain S.; McWiliams, Jennifer A.; Konopacki, Steven J.

    2003-01-01T23:59:59.000Z

    Practices for Residential HVAC Systems”. Boston, MA. Jump,techniques for measuring HVAC grille air flows". ASHRAEPractices Guide for Residential HVAC Retrofits. LBNL 53592.

  15. An implementation of co-simulation for performance prediction of innovative integrated HVAC systems in buildings

    E-Print Network [OSTI]

    Trcka, Marija

    2010-01-01T23:59:59.000Z

    and Judkoff, R. 2002. IEA HVAC BESTEST volume 1, Technicaland Judkoff, R. 2004. IEA HVAC BESTEST volume 2, TechnicalOF INNOVATIVE INTEGRATED HVAC SYSTEMS IN BUILDINGS Marija

  16. Co-design of Control Algorithm and Embedded Platformfor Building HVAC Systems

    E-Print Network [OSTI]

    Maasoumy, Mehdi; Zhu, Qi; Li, Cheng; Meggers, Forrest; Sangiovanni-Vincentelli, Alberto

    2013-01-01T23:59:59.000Z

    algorithm design for hvac systems in energy efficientOptimal control of HVAC systems in the presence of imperfectminimization of building hvac systems using model predictive

  17. Comparisons of HVAC Simulations between EnergyPlus and DOE-2.2 for Data Centers

    E-Print Network [OSTI]

    Hong, Tianzhen

    2009-01-01T23:59:59.000Z

    ABORATORY Comparisons of HVAC Simulations between EnergyPlusemployer. Comparisons of HVAC Simulations between EnergyPlusThis paper compares HVAC simulations between EnergyPlus and

  18. Laboratory measurement of secondary pollutant yields from ozone reaction with HVAC filters.

    E-Print Network [OSTI]

    Destaillats, Hugo

    2012-01-01T23:59:59.000Z

    from Ozone Reaction with HVAC Filters Hugo Destaillats,from Ozone Reaction with HVAC Filters Hugo Destaillatsfrom Ozone Reaction with HVAC Filters Hugo Destaillats

  19. Modeling and Simulation of HVAC Faulty Operations and Performance Degradation due to Maintenance Issues

    E-Print Network [OSTI]

    Wang, Liping

    2014-01-01T23:59:59.000Z

    of Commercial Building HVAC Systems, Atlanta: American2012. Modeling and simulation of HVAC faults in EnergyPlus,Modeling and Simulation of HVAC Faulty Operations and

  20. Monitoring-based HVAC Commissioning of an Existing Office Building for Energy Efficiciency

    E-Print Network [OSTI]

    Wang, Liping

    2014-01-01T23:59:59.000Z

    Dascalaki E, Gaglia A. HVAC and indoor thermal conditions inCommissioning of Building HVAC Systems for Improving Energyand diagnosis strategy for HVAC systems involving sensor

  1. Optimal Control of Building HVAC Systems in the Presence of Imperfect Predictions

    E-Print Network [OSTI]

    Maasoumy, Mehdi; Sangiovanni-Vincentelli, Alberto

    2014-01-01T23:59:59.000Z

    minimization of building hvac systems using model predictivealgorithm design for hvac systems in energy efficient build-optimal control design for HVAC systems,” in Dynamic System

  2. Flexibility of Commercial Building HVAC Fan as Ancillary Service for Smart Grid

    E-Print Network [OSTI]

    Maasoumy, Mehdi

    2013-01-01T23:59:59.000Z

    optimal control design for HVAC systems,” in Dynamic Systemminimization of building hvac systems using model pre-algorithm design for hvac systems in energy efficient

  3. Total and Peak Energy Consumption Minimization of Building HVAC Systems Using Model Predictive Control

    E-Print Network [OSTI]

    Maasoumy, Mehdi; Sangiovanni-Vincentelli, Alberto

    2012-01-01T23:59:59.000Z

    optimal control design for HVAC systems,’’ in Proc. Dynamicelectricity consumption in hvac using learning- based model-algorithm design for hvac systems in energy efficient

  4. Recovery Act-Funded HVAC projects

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy was allocated funding from the American Recovery and Reinvestment Act to conduct research into heating, ventilation, and air conditioning (HVAC) technologies and...

  5. Distributed Control of HVAC&R Networks

    E-Print Network [OSTI]

    Elliott, Matthew Stuart

    2013-07-05T23:59:59.000Z

    retains a degree of modularity—changing one component does not require changing all controllers. The final contribution is a new distributed optimization algorithm that is rooted in distributed MPC and is especially motivated by HVAC&R systems...

  6. A PDI for your HVAC System

    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 "HVAC proper installation energy savings: over-promising or under-deliverying?"

  7. System Optimization - The Global Approach to HVAC Control

    E-Print Network [OSTI]

    Thielman, D. E.

    1984-01-01T23:59:59.000Z

    System Optimization is a new approach to HVAC control as implemented by Energy Management Control Systems. System Optimization is defined as electronic building control strategies which treat a building's HVAC components as a complete energy...

  8. Theoretical Minimum Energy Use of a Building HVAC System 

    E-Print Network [OSTI]

    Tanskyi, O.

    2011-01-01T23:59:59.000Z

    This paper investigates the theoretical minimum energy use required by the HVAC system in a particular code compliant office building. This limit might be viewed as the "Carnot Efficiency" for HVAC system. It assumes that all ventilation and air...

  9. Indirect Benefits (Increased Roof Life and HVAC Savings) from...

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

    Indirect Benefits (Increased Roof Life and HVAC Savings) from a Solar PV System at the San Jos Convention Center Indirect Benefits (Increased Roof Life and HVAC Savings) from a...

  10. The Optimization of Control Parameters for VAV HVAC System Commissioning

    E-Print Network [OSTI]

    Song, S.; Maehara, K.; Sagara, N.

    2006-01-01T23:59:59.000Z

    One of the technical subjects in commissioning for HVAC system is to enhance control performance and time efficiency, while the tuning of the optimal parameters to control HVAC system takes much time and labor in particular. Therefore, we propose a...

  11. Theoretical Minimum Energy Use of a Building HVAC System

    E-Print Network [OSTI]

    Tanskyi, O.

    2011-01-01T23:59:59.000Z

    This paper investigates the theoretical minimum energy use required by the HVAC system in a particular code compliant office building. This limit might be viewed as the "Carnot Efficiency" for HVAC system. It assumes that all ventilation and air...

  12. Modeling and simulation of HVAC Results in EnergyPlus

    E-Print Network [OSTI]

    LBNL-5564E Modeling and simulation of HVAC Results in EnergyPlus Mangesh Basarkar, Xiufeng Pang;MODELING AND SIMULATION OF HVAC FAULTS IN ENERGYPLUS Mangesh Basarkar, Xiufeng Pang, Liping Wang, Philip

  13. Implementation and main results Ecient Management of HVAC Systems

    E-Print Network [OSTI]

    Schenato, Luca

    , Ventilation and Air-Conditioning System Heating, Ventilation and Air Conditioning Systems (HVAC) represents Implementation and main results HVAC Systems Multiple-chiller systems Heating, Ventilation and Air #12;Motivation Implementation and main results HVAC Systems Multiple-chiller systems Heating

  14. Atmospheric Environment 41 (2007) 31513160 Ozone removal by HVAC filters

    E-Print Network [OSTI]

    Siegel, Jeffrey

    Atmospheric Environment 41 (2007) 3151­3160 Ozone removal by HVAC filters P. Zhao, J.A. Siegel�, R May 2006; accepted 14 June 2006 Abstract Residential and commercial HVAC filters that have been loaded of the relative importance of HVAC filters as a removal mechanism for ozone in residential and commercial

  15. Tematiche di ricerca Controllo di sistemi HVAC&R

    E-Print Network [OSTI]

    Schenato, Luca

    Tematiche di ricerca Controllo di sistemi HVAC&R Controllo di processo per l'industria dei;Tematiche di ricerca Controllo di sistemi HVAC&R Controllo di processo per l'industria dei semiconduttori controllo di sistemi HVAC&R 2 Controllo di processo per l'industria dei semiconduttori 3 Problemi di

  16. Proceedings: Indoor Air 2005 OZONE REMOVAL BY RESIDENTIAL HVAC FILTERS

    E-Print Network [OSTI]

    Siegel, Jeffrey

    Proceedings: Indoor Air 2005 2366 OZONE REMOVAL BY RESIDENTIAL HVAC FILTERS P Zhao1,2 , JA Siegel1, Austin, Texas 78758, USA ABSTRACT HVAC filters have a significant influence on indoor air quality% for Filter #2 at a face velocity of 0.81 cm/s. The potential for HVAC filters to affect ozone concentrations

  17. Deposition of Biological Aerosols on HVAC Heat Exchangers

    E-Print Network [OSTI]

    LBNL-47669 Deposition of Biological Aerosols on HVAC Heat Exchangers Jeffrey Siegel and Iain Walker of Biological Aerosols on HVAC Heat Exchangers Jeffrey A. Siegel Iain S. Walker, Ph.D. ASHRAE Student Member that are found in commercial and residential HVAC systems of 1 - 6 m/s (200 - 1200 ft/min), particle diameters

  18. An update on acoustics designs for HVAC (Engineering) K. Marriott

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    An update on acoustics designs for HVAC (Engineering) K. Marriott IOA, 29a Ashburton Road, Croydon and Air Conditioning (HVAC) engineer is to engineer ways for keeping these factors under control the HVAC engineer's environmental requirements while minimizing noise generated in the process considering

  19. Implementation of a Scenario-based MPC for HVAC Systems

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    Implementation of a Scenario-based MPC for HVAC Systems: an Experimental Case Study Alessandra, Ventilation and Air Conditioning (HVAC) systems play a fundamental role in maintaining acceptable thermal energy savings potential. Developing effective MPC-based control strategies for HVAC systems

  20. Comparison of Building Energy Modeling Programs: HVAC Systems

    E-Print Network [OSTI]

    LBNL-6432E Comparison of Building Energy Modeling Programs: HVAC Systems Xin Zhou1 , Tianzhen Hong2 programs (BEMPs) for HVAC calculations: EnergyPlus, DeST, and DOE-2.1E. This is a joint effort between purposes, BEMPs can be divided into load modules and HVAC system modules. This technical report

  1. Long Range Passive UHF RFID System Using HVAC Ducts

    E-Print Network [OSTI]

    Hochberg, Michael

    INVITED P A P E R Long Range Passive UHF RFID System Using HVAC Ducts To provide a potential communications channel, HVAC ducts can function as electromagnetic waveguides; a 30-m read range has been-conditioning (HVAC) ducts as a potential communication channel between passive ultrahigh-frequency (UHF) radio

  2. MATERIALS AND INFORMATION FLOWS FOR HVAC DUCTWORK FABRICATION AND SITE

    E-Print Network [OSTI]

    Tommelein, Iris D.

    MATERIALS AND INFORMATION FLOWS FOR HVAC DUCTWORK FABRICATION AND SITE INSTALLATION Matt Holzemer,1, and air-conditioning (HVAC) systems requires a set of complex activities and handoffs between multiple architecture-, engineering-, and construction practitioners. This paper highlights one part of the HVAC

  3. Cold Vacuum Drying facility HVAC system design description (SYS 30-1 THRU 30-5)

    SciTech Connect (OSTI)

    PITKOFF, C.C.

    1999-07-02T23:59:59.000Z

    This document describes the Cold Vacuum Drying Facility (CVDF) heating, ventilation, and air conditioning system (HVAC). The CVDF HVAC system consists of the Administrative building HVAC system, the process bay recirculation HVAC system, the process bay local HVAC and process vent system, the process general supply/exhaust HVAC system, and the Reference air system. These HVAC sub-systems support the CVDF process and provide secondary confinement of contamination and the required filtration of exhaust.

  4. Salsbury and Diamond: Automated Testing of HVAC Systems for Commissioning -1 -Automated Testing of HVAC Systems for Commissioning

    E-Print Network [OSTI]

    and Diamond: Automated Testing of HVAC Systems for Commissioning - 1 - Automated Testing of HVAC Systems for Commissioning Tim Salsbury and Rick Diamond Lawrence Berkeley National Laboratory Berkeley, CA 94720 Synopsis This paper describes an approach to the automation of the commissioning of HVAC systems. The approach

  5. Optimal Control of Building HVAC Systems in the Presence of Imperfect Predictions, ASME Dynamic System Control Conference

    E-Print Network [OSTI]

    Maasoumy, Mehdi

    2012-01-01T23:59:59.000Z

    optimal control design for HVAC systems,” in Dynamic Systemalgorithm design for hvac systems in energy efficient build-OPTIMAL CONTROL OF BUILDING HVAC SYSTEMS IN THE PRESENCE OF

  6. Model Predictive Control Approach to Online Computation of Demand-Side Flexibility of Commercial Buildings HVAC Systems for Supply Following

    E-Print Network [OSTI]

    Maasoumy, Mehdi

    2014-01-01T23:59:59.000Z

    of commercial building HVAC fan as ancillary service foralgorithm design for hvac systems in energy efficientoptimal control design for HVAC systems,” in Dynamic System

  7. University of North Carolina at Charlotte Design and Construction Manual Section 2, Division 23 HVAC

    E-Print Network [OSTI]

    Xie,Jiang (Linda)

    ­ HVAC SECTION 2 DIVISION 23 HVAC #12;University of North Carolina at Charlotte Design and Construction Manual Section 2, Division 23 ­ HVAC DIVISION 23 - HVAC Note: This is a guide for Designers only 23 0510 - MECHANICAL GENERAL - HVAC PART 1 - GENERAL 1.1 MECHANICAL DESIGNER: A. Design

  8. PROJECT REPORT HVAC EQUIPMENT DEMOGRAPHICS AND CAPACITY

    E-Print Network [OSTI]

    California at Davis, University of

    - nently reduce the connected capacity, with respect to the HVAC system, by disconnecting compressors within RTUs that contain multiple compressors. We reviewed existing literature and col- lected primary data by conducting field surveys in order to estab- lish how multiple compressor RTUs are typically

  9. Uncertainties in Achieving Energy Savings from HVAC Maintenance Measures in the Field

    E-Print Network [OSTI]

    California at Davis, University of

    Uncertainties in Achieving Energy Savings from HVAC Maintenance Measures in the Field Kristin Group, Davis, CA, USA 4 Southern California Edison, Irwindale, CA, USA ABSTRACT HVAC maintenance utilities across the nation to include HVAC maintenance measures in energy efficiency programs

  10. Report on HVAC option selections for a relocatable classroom energy and indoor environmental quality field study

    E-Print Network [OSTI]

    2001-01-01T23:59:59.000Z

    LBNL- 49026 Report on HVAC Option Selections for aTable 3. High performance HVAC system filter selectionDrop ("H 2 O) Appendix A – RC HVAC working drawings. Figure

  11. IFC HVAC interface to EnergyPlus - A case of expanded interoperability for energy simulation

    E-Print Network [OSTI]

    Bazjanac, Vladimir; Maile, Tobias

    2004-01-01T23:59:59.000Z

    D. Sucic and P. Xu. 2002. HVAC Component Data Modeling Using2001. BS-8 project: IFC HVAC extension schemata. http://IFC HVAC INTERFACE TO ENERGYPLUS – A CASE OF EXPANDED

  12. Analysis of a hybrid UFAD and radiant hydronic slab HVAC system

    E-Print Network [OSTI]

    Raftery, Paul; Lee, Kwang Ho; Webster, Thomas; Bauman, Fred

    2011-01-01T23:59:59.000Z

    Air- Conditioning Engineers HVAC & R Research, vol. 50, Sep.and radiant hydronic slab HVAC system.   Paul RAFTERY a,* ,of a novel integrated HVAC system. This system combines an

  13. Improving the Efficiency of Light-Duty Vehicle HVAC Systems using...

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

    Light-Duty Vehicle HVAC Systems using Zonal Thermoelectric Devices and Comfort Modeling Improving the Efficiency of Light-Duty Vehicle HVAC Systems using Zonal Thermoelectric...

  14. A Scenario-based Predictive Control Approach to Building HVAC Management Systems

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    A Scenario-based Predictive Control Approach to Building HVAC Management Systems Alessandra Parisio and Air Conditioning (HVAC) systems while minimizing the overall energy use. The strategy uses

  15. Integration of HVAC System Design with Simplified Duct Distribution...

    Energy Savers [EERE]

    about this Top Innovation. See an example of this Top Innovation in action. Find more case studies of Building America projects across the country that integrate HVAC system...

  16. Thermoelectric HVAC and Thermal Comfort Enablers for Light-Duty...

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

    and Thermal Comfort Enablers for Light-Duty Vehicle Applications Thermoelectric HVAC and Thermal Comfort Enablers for Light-Duty Vehicle Applications 2012 DOE Hydrogen and Fuel...

  17. 2014-04-28 Issuance: Certification of Commercial HVAC, Water...

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

    heating, ventilation, and air-conditioning (HVAC), water heating (WH), and refrigeration (CRE) equipment, as issued by the Deputy Assistant Secretary for Energy Efficiency...

  18. Pre-Commercial Demonstration of Cost-Effective Advanced HVAC...

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

    Hayden Reeve, United Technologies Research Center Optimal control coordination of heating, ventilation, and air conditioning (HVAC) equipment can reduce energy by more than...

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

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

    Furthermore, this research led to the creation of ASHRAE Standard 193, "Method of Test for Determining the Airtightness of HVAC Equipment," which was ready for adoption in...

  20. HVAC Efficiency Controls Could Mean Significant Savings | Department...

    Energy Savers [EERE]

    to produce more advanced HVAC controllers and for building owners to adopt these energy-saving methods." The PNNL team hopes the report will encourage manufacturers to...

  1. Columbia Water and Light- HVAC and Lighting Efficiency Rebates

    Broader source: Energy.gov [DOE]

    Columbia Water and Light (CWL) offers rebates to its commercial and industrial customers for the purchase of high efficiency HVAC installations and efficient lighting. Incentives for certain...

  2. DOE Convening Report on Certification of Commercial HVAC and...

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

    of a negotiated rulemaking to revise the certification program for commercial HVAC and CRE products published on October 2, 2012. conveningreporthvaccre1.pdf More...

  3. Two Alabama Elementary Schools Get Cool with New HVAC Units ...

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

    campaign. Winston's HVAC replacement project received a boost from the Alabama State Energy Program, which granted the school district a little more than 82,000 in Recovery...

  4. Thermal Storage Options for HVAC Systems

    E-Print Network [OSTI]

    Weston, R. F.; Gidwani, B. N.

    THERMAL STORAGE OPTIONS FOR HVAC SYSTEMS B. N. Gidwani, P.E. Roy F. Weston, Inc. West Chester, Pennsylvania ABSTRACT With the ever-increasing cost of electricity and the high demand charges levied by utility compa nies, thermal storage... for cooling is rapidly becom ing a widely recognized method to lower cooling costs. There are three maior types of thermal stor age systems: ? Ice Storage: This utilizes the latent heat of fusion of ice for thermal storage. During off Deak periods...

  5. Reliability and Functional Availability of HVAC Systems

    E-Print Network [OSTI]

    Myrefelt, S.

    2004-01-01T23:59:59.000Z

    RELIABILITY AND FUNCTIONAL AVAILABILITY OF HVAC SYSTEMS Sonny Myrefelt Dep. of Build. Serv. Eng., KTH, 10044 Stockholm, Sweden, and SKANSKA Sydost, V?xj?, Sweden Summary This paper presents a model to calculate the reliability... system, therefore, there must be sufficient documentation of design airflow rates. The compulsory ventilation checks performed in Sweden have focused on the importance of maintaining the design air flow rates. More about this activity can be seen...

  6. Interdisciplinary Innovation and Vision in the HVAC 

    E-Print Network [OSTI]

    Hecker, T.

    2008-01-01T23:59:59.000Z

    8th International Conference for Enhanced Building Operations - ICEBO?08 Conference Center of the Federal Ministry of Economics and Technology Berlin, October 20 - 22, 2008 Tomas Hecker AL-KO Therm GmbH Hauptstrasse 248 - 250 89343... Jettingen-Scheppach 00 49 82 25/ 39 - 1 28 tomas.hecker@al-ko.de Interdisciplinary Innovation and Vision in the HVAC High energy costs in buildings are forcing the building owners, developers, fund and facility managers to find alternate energy...

  7. Daylighting controls; Orphan of HVAC design

    SciTech Connect (OSTI)

    Rundquist, R.A. (R.A. Rundquist Associates Inc., Northampton, MA (US))

    1991-11-01T23:59:59.000Z

    This paper reports that in the array of strategies employed for energy-efficient design and retrofitting in commercial buildings, the use of daylighting controls is often overlooked or omitted. Thus, daylighting controls are a worthy but neglected orphan of the design process, stranded between the lighting designer, architect and engineer. Most daylighting analysis ignores HVAC effects, despite obvious interactions between windows, heat-from-lights, and thermal loads.

  8. Pitfalls in Building and HVAC Systems

    E-Print Network [OSTI]

    Gidwani, B. N.

    PITFALLS IN BUILDING AND HVAC SYSTEMS B. N. Gidwani, P.E. Roy F. Weston, Inc. West Chester, Pennsylvania ABSTRACT The purpose of an energy audit is to identify and analyze areas of energy consumption and to pro pose methods of conservation.... In the process of completing an audit the following areas of consump tion should be considered: ? Building Envelope ? Air-Handling Systems ? Chilled Water Systems ? Boiler Systems ? Lighting/Electrical Systems Within these areas many potential...

  9. Edison memory upgrade

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

    Edison memory upgraded during the maintenance in Jan 13-16, 2015 Edison memory upgraded during the maintenance in Jan 13-16, 2015 January 16, 2015 (0 Comments) Edison compute node...

  10. rig upgrades2.qxp

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

    mitted a significant portion of its budget to upgrade several items on its existing drilling rig at Naval Petroleum Reserve No. 3 (NPR-3). Many of the upgrades took place in...

  11. Occupancy Based Demand Response HVAC Control Strategy Varick L. Erickson

    E-Print Network [OSTI]

    Cerpa, Alberto E.

    Occupancy Based Demand Response HVAC Control Strategy Varick L. Erickson University of California an efficient demand response HVAC control strategy, actual room usage must be considered. Temperature and CO2 are used for simulations but not for predictive demand response strategies. In this paper, we develop

  12. HVAC & Building Management Control System Energy Efficiency Replacements

    SciTech Connect (OSTI)

    Hernandez, Adriana

    2012-09-21T23:59:59.000Z

    The project objective was the replacement of an aging, un-repairable HVAC system which has grown inefficient and a huge energy consumer with low energy and efficient HVAC units, and installation of energy efficient building control technologies at City's YMCA Community Center.

  13. Energy efficient HVAC system features thermal storage and heat recovery

    SciTech Connect (OSTI)

    Bard, E.M. (Bard, Rao + Athanas Consulting Engineering Inc., Boston, MA (United States))

    1994-03-01T23:59:59.000Z

    This article describes a HVAC system designed to efficiently condition a medical center. The topics of the article include energy efficient design of the HVAC system, incentive rebate program by the local utility, indoor air quality, innovative design features, operations and maintenance, payback and life cycle cost analysis results, and energy consumption.

  14. Modeling Building Thermal Response to HVAC Zoning Virginia Smith

    E-Print Network [OSTI]

    Whitehouse, Kamin

    . Much of this wasted energy is used to heat or cool unoccupied spaces during long periods when people HVAC systems account for 38% of building energy usage. Studies have indicated at least 5-15% waste due to unoccu- pied spaces being conditioned. Our goal is to minimize this waste by retrofitting HVAC systems

  15. HVAC Design Strategy for a Hot-Humid Production Builder, Houston, Texas (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-03-01T23:59:59.000Z

    BSC worked directly with the David Weekley Homes - Houston division to redesign three floor plans in order to locate the HVAC system in conditioned space. The purpose of this project is to develop a cost effective design for moving the HVAC system into conditioned space. In addition, BSC conducted energy analysis to calculate the most economical strategy for increasing the energy performance of future production houses. This is in preparation for the upcoming code changes in 2015. The builder wishes to develop an upgrade package that will allow for a seamless transition to the new code mandate. The following research questions were addressed by this research project: 1. What is the most cost effective, best performing and most easily replicable method of locating ducts inside conditioned space for a hot-humid production home builder that constructs one and two story single family detached residences? 2. What is a cost effective and practical method of achieving 50% source energy savings vs. the 2006 International Energy Conservation Code for a hot-humid production builder? 3. How accurate are the pre-construction whole house cost estimates compared to confirmed post construction actual cost? BSC and the builder developed a duct design strategy that employs a system of dropped ceilings and attic coffers for moving the ductwork from the vented attic to conditioned space. The furnace has been moved to either a mechanical closet in the conditioned living space or a coffered space in the attic.

  16. Better Buildings Neighborhood Program Business Models Guide: HVAC Contractor Business Model Introduction

    Broader source: Energy.gov [DOE]

    Better Buildings Neighborhood Program Business Models Guide: HVAC Contractor Business Model Introduction.

  17. Duty-Cycling Buildings Aggressively: The Next Frontier in HVAC Control

    E-Print Network [OSTI]

    Simunic, Tajana

    Duty-Cycling Buildings Aggressively: The Next Frontier in HVAC Control Yuvraj Agarwal, Bharathan the dominant energy consumer is the HVAC system. Despite this fact, in most buildings the HVAC system is run sensing to guide the operation of a building HVAC system. We show how we can enable aggressive duty

  18. OBSERVE: Occupancy-Based System for Efficient Reduction of HVAC Energy

    E-Print Network [OSTI]

    Carreira-Perpiñån, Miguel Á.

    OBSERVE: Occupancy-Based System for Efficient Reduction of HVAC Energy Varick L. Erickson, Miguel Á & control General Terms Algorithms, Machine Learning, Measurement Keywords Occupancy, HVAC, Ventilation for heating, ventilation, and air-conditioning (HVAC) systems[2]. Studies suggest that 15% to 25% of HVAC

  19. The influence of HVAC systems on secondary organic aerosol formation Michael S. Waring1

    E-Print Network [OSTI]

    Siegel, Jeffrey

    The influence of HVAC systems on secondary organic aerosol formation Michael S. Waring1 , Jeffrey A, ventilation, and air- conditioning (HVAC) system. This study models the influence of HVAC systems on SOA. The most influential HVAC parameters are the flow rates, particle filtration, and indoor temperature

  20. Analysis of a hybrid UFAD and radiant hydronic slab HVAC system

    E-Print Network [OSTI]

    Raftery, Paul; Lee, Kwang Ho; Webster, Thomas; Bauman, Fred

    2011-01-01T23:59:59.000Z

    cooling systems,” American Society of Heating, Refrigerating and Air- Conditioning Engineers HVAC & R Research,

  1. Co-simulation for performance prediction of integrated building and HVAC systems - An analysis of solution characteristics using a two-body system

    E-Print Network [OSTI]

    Trcka, Marija

    2010-01-01T23:59:59.000Z

    of innovative integrated HVAC systems in buildings, infor building envelope and HVAC systems simu- lation - WillIntegrated simulation for HVAC performance prediction: State

  2. Kentucky Power- Residential Efficient HVAC Rebate Program

    Broader source: Energy.gov [DOE]

    Kentucky Power's High Efficiency Heat Pump Program offers a $400 rebate to residential customers living in existing (site-built) homes who upgrade electric resistance heating systems with a new,...

  3. Thinking small leads to efficient HVAC system

    SciTech Connect (OSTI)

    Not Available

    1981-06-01T23:59:59.000Z

    The energy efficient design of a Park Avenue office tower is discussed. The 27 story, 260,000 sq. ft. building features an energy efficient HVAC system, including separate mechanical rooms on each floor and a pre-cooling coil utilizing water from a cooling tower. The building was designed so that condenser water from the cooling tower is run through a pre-cooling coil on each floor in order to provide free cooling before the water goes through the condenser coil. The building also uses a Honeywell energy management system to control the start and stop of various mechanical equipment according to outside conditions and building loads. (MJF)

  4. Best practices guide for residential HVAC Retrofits

    SciTech Connect (OSTI)

    Walker, Iain S.

    2003-08-11T23:59:59.000Z

    This best practices guide for residential HVAC system retrofits is aimed at contractors who want guidance on delivering energy efficient, cost effective and innovative products. It has been developed around the idea of having packages of changes to the building HVAC system and building envelope that are climate and house construction dependent. These packages include materials, procedures and equipment and are designed to remove some of the guesswork from a builder, contractor, installer or homeowner decisions about how best to carry out HVAC changes. The packages are not meant to be taken as rigid requirements--instead they are systems engineered guidelines that form the basis for energy efficient retrofits. Similar approaches have been taken previously for new construction to develop extremely energy efficient homes that are comfortable safe and durable, and often cost less than standard construction. This is best epitomized by the Building America program whose partners have built thousands of residences throughout the U.S. using these principles. The differences between retrofitting and new construction tend to limit the changes one can make to a building, so these packages rely on relatively simple and non-intrusive technologies and techniques. The retrofits also focus on changes to a building that will give many years of service to the occupants. Another key aspect of these best practices is that we need to know how a house is working so that we know what parts have the potential for improvement. To do this we have put together a set of diagnostic tools that combine physical measurements and checklists/questionnaires. The measured test results, observations and homeowner answers to questions are used to direct us towards the best retrofits applicable to each individual house. The retrofits will depend on the current condition of the building envelope and HVAC system, the local climate, the construction methods used for the house, and the presence of various energy saving systems (e.g., a Heat Recovery Ventilator) and/or materials. This is just like a doctor referring a patient for blood tests or x-rays before actually performing surgery. This way the doctor can be sure that he does the right thing. To take this analogy further--we can borrow from the medical profession and say that the first thought when retrofitting a house is to do no harm, i.e., do not make changes that could make the house worse to live in.

  5. The Impact of Uncertain Physical Parameters on HVAC Demand Response

    SciTech Connect (OSTI)

    Sun, Yannan; Elizondo, Marcelo A.; Lu, Shuai; Fuller, Jason C.

    2014-03-01T23:59:59.000Z

    HVAC units are currently one of the major resources providing demand response (DR) in residential buildings. Models of HVAC with DR function can improve understanding of its impact on power system operations and facilitate the deployment of DR technologies. This paper investigates the importance of various physical parameters and their distributions to the HVAC response to DR signals, which is a key step to the construction of HVAC models for a population of units with insufficient data. These parameters include the size of floors, insulation efficiency, the amount of solid mass in the house, and efficiency of the HVAC units. These parameters are usually assumed to follow Gaussian or Uniform distributions. We study the effect of uncertainty in the chosen parameter distributions on the aggregate HVAC response to DR signals, during transient phase and in steady state. We use a quasi-Monte Carlo sampling method with linear regression and Prony analysis to evaluate sensitivity of DR output to the uncertainty in the distribution parameters. The significance ranking on the uncertainty sources is given for future guidance in the modeling of HVAC demand response.

  6. Classroom HVAC: Improving ventilation and saving energy -- field study plan

    SciTech Connect (OSTI)

    Apte, Michael G.; Faulkner, David; Hodgson, Alfred T.; Sullivan, Douglas P.

    2004-10-14T23:59:59.000Z

    The primary goals of this research effort are to develop, evaluate, and demonstrate a very practical HVAC system for classrooms that consistently provides classrooms (CRs) with the quantity of ventilation in current minimum standards, while saving energy, and reducing HVAC-related noise levels. This research is motivated by the public benefits of energy efficiency, evidence that many CRs are under-ventilated, and public concerns about indoor environmental quality in CRs. This document provides a summary of the detailed plans developed for the field study that will take place in 2005 to evaluate the energy and IAQ performance of a new classroom HVAC technology. The field study will include measurements of HVAC energy use, ventilation rates, and IEQ conditions in 10 classrooms with the new HVAC technology and in six control classrooms with a standard HVAC system. Energy use and many IEQ parameters will be monitored continuously, while other IEQ measurements will be will be performed seasonally. Continuously monitored data will be remotely accessed via a LonWorks network. Instrument calibration plans that vary with the type of instrumentation used are established. Statistical tests will be employed to compare energy use and IEQ conditions with the new and standard HVAC systems. Strengths of this study plan include the collection of real time data for a full school year, the use of high quality instrumentation, the incorporation of many quality control measures, and the extensive collaborations with industry that limit costs to the sponsors.

  7. Capturing Energy Upgrades

    Broader source: Energy.gov [DOE]

    Provides an overview of how to capture the value of energy efficiency upgrades in the real estate market, from CNT Energy.

  8. The D0 Upgrade

    SciTech Connect (OSTI)

    Abachi, S.; D0 Collaboration

    1995-07-01T23:59:59.000Z

    In this paper we describe the approved DO Upgrade detector, and its physics capabilities. The DO Upgrade is under construction and will run during the next Fermilab collider running period in early 1999 (Run II). The upgrade is designed to work at the higher luminosities and shorter bunch spacings expected during this run. The major elements of t he upgrade are: a new tracking system with a silicon tracker, scintillating fiber tracker, a 2T solenoid, and a central preshower detector; new calorimeter electronics; new muon trigger and tracking detectors with new muon system electronics; a forward preshower detector; new trigger electronics and DAQ improvements to handle the higher rates.

  9. Upgrading through Preprocessing Technologies

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

    Upgrading through Preprocessing Technologies The challenges of efficiently converting raw biomass into usable, affordable, customized bioenergy feedstdocks are many. The bioenergy...

  10. Self-Correcting HVAC Controls Project Final Report

    SciTech Connect (OSTI)

    Fernandez, Nicholas; Brambley, Michael R.; Katipamula, Srinivas; Cho, Heejin; Goddard, James K.; Dinh, Liem H.

    2010-01-04T23:59:59.000Z

    This document represents the final project report for the Self-Correcting Heating, Ventilating and Air-Conditioning (HVAC) Controls Project jointly funded by Bonneville Power Administration (BPA) and the U.S. Department of Energy (DOE) Building Technologies Program (BTP). The project, initiated in October 2008, focused on exploratory initial development of self-correcting controls for selected HVAC components in air handlers. This report, along with the companion report documenting the algorithms developed, Self-Correcting HVAC Controls: Algorithms for Sensors and Dampers in Air-Handling Units (Fernandez et al. 2009), document the work performed and results of this project.

  11. Residential HVAC Data, Assumptions and Methodology for End-Use Forecasting with EPRI-REEPS 2.1

    E-Print Network [OSTI]

    Johnson, F.X.

    2010-01-01T23:59:59.000Z

    of contractors in the HVAC market will certainly have anational version of the HVAC market share decision model,equipment 4.5. HVAC Equipment Market Shares We now define

  12. Software-as-a-Service Optimised Scheduling of a Solar-Assisted HVAC System with Thermal Storage

    E-Print Network [OSTI]

    Mammoli, Andrea

    2014-01-01T23:59:59.000Z

    solar-thermal- assisted hvac system. Energy and Buildings, [of a Solar-Assisted HVAC System with Thermal Storage A.of a solar-assisted HVAC system with thermal storage. Energy

  13. Influence Of Three Dynamic Predictive Clothing Insulation Models On Building Energy Use, HVAC Sizing And Thermal Comfort

    E-Print Network [OSTI]

    Schiavon, Stefano; Lee, Kwang Ho

    2013-01-01T23:59:59.000Z

    ON BUILDING ENERGY USE, HVAC SIZING AND THERMAL COMFORT aThe results showed that when the HVAC is controlled based onequipment sizing. When the HVAC is controlled based on the

  14. Using measured equipment load profiles to "right-size" HVAC systems and reduce energy use in laboratory buildings (Pt. 2)

    E-Print Network [OSTI]

    Mathew, Paul; Greenberg, Steve; Frenze, David; Morehead, Michael; Sartor, Dale; Starr, William

    2008-01-01T23:59:59.000Z

    load profiles to “right-size” HVAC systems and reduce energyGeorgia. ASHRAE [1999]. HVAC Applications Handbook 1999.Inefficiency of a Common Lab HVAC System,” presented at the

  15. Residential HVAC Data, Assumptions and Methodology for End-Use Forecasting with EPRI-REEPS 2.1

    E-Print Network [OSTI]

    Johnson, F.X.

    2010-01-01T23:59:59.000Z

    Efficiency Choice 6.3 New Home HVAC System Choice 6.4. NewJuly. EPRI. 1990. REEPS 2.0 HVAC Model Logic, prepared by1990. Review of Equipment HVAC Choice Parameters. Cambridge

  16. Strategy Guideline: Transitioning HVAC Companies to Whole House Performance Contractors

    SciTech Connect (OSTI)

    Burdick, A.

    2012-05-01T23:59:59.000Z

    This report describes the findings from research IBACOS conducted related to heating, ventilation, and air conditioning (HVAC) companies who have made the decision to transition to whole house performance contracting (WHPC).

  17. Building HVAC Control System Interaction Issues: Two Case Studies

    E-Print Network [OSTI]

    Chen, Q.; Deng, S.; Toole, C.; Xu, C.

    2007-01-01T23:59:59.000Z

    Direct Digital Control (DDC) allows HVAC equipment to be controlled at an upper level (supervisory control) through commands from a central system, or at a lower-level (local-loop control) by local controllers. The various levels of equipment...

  18. HVAC EFFICIENCY BUSINESS CASE DEMAND CONTROL KITCHEN VENTILATION

    E-Print Network [OSTI]

    California at Davis, University of

    HVAC EFFICIENCY BUSINESS CASE DEMAND CONTROL KITCHEN VENTILATION Selecting, financing ventilation (DCKV) for kitchen exhaust hoods. Implementation can be relatively simple in either new of demand control kitchen ventilation (DCKV) in many small, medium, and large kitchen exhaust hood

  19. Industrial HVAC Air-to-Air Energy Recovery Retrofit Economics

    E-Print Network [OSTI]

    Graham, E. L.

    1980-01-01T23:59:59.000Z

    Retrofitting air-to-air energy recovery equipment is relatively simply to design and easy to install. Additionally, HVAC energy recovery is almost risk free when compared to process retrofit. Life cycle cost analysis is the best way to illustrate...

  20. MODELING AND SIMULATION OF HVAC FAULTS IN ENERGYPLUS

    E-Print Network [OSTI]

    Basarkar, Mangesh

    2013-01-01T23:59:59.000Z

    Symptoms Decreased boiler efficiency due to the increasedresult in reduced boiler efficiency if the sensor hasboiler and two chillers in the plant loop. The building envelope prescriptive minimums and HVAC system efficiencies

  1. STATE OF CALIFORNIA CERTIFICATE OF COMPLIANCE, PRESCRIPTIVE HVAC ALTERATIONS

    E-Print Network [OSTI]

    Equipment Equipment Type, Efficiency and Capacity 1 Floor Area Served 2 Distribution Type and Location 3 Equipment Type; Air Handler, Condenser, Heat Pump, Evap. Cooling, Boiler, Electric Resistance, etc. & HVAC

  2. Review of Residential Low-Load HVAC Systems

    SciTech Connect (OSTI)

    Brown, Scott A.; Thornton, Brian; Widder, Sarah H.

    2013-09-01T23:59:59.000Z

    In support of the U.S. Department of Energy’s (DOE’s) Building America Program, Pacific Northwest National Laboratory (PNNL) conducted an investigation to inventory commercially available HVAC technologies that are being installed in low-load homes. The first step in this investigation was to conduct a review of published literature to identify low-load HVAC technologies available in the United States and abroad, and document the findings of existing case studies that have evaluated the performance of the identified technologies. This report presents the findings of the literature review, identifies gaps in the literature or technical understanding that must be addressed before low-load HVAC technologies can be fully evaluated, and introduces PNNL’s planned research and analysis for this project to address identified gaps and potential future work on residential low-load HVAC systems.

  3. Ameren Illinois (Electric)- Custom, HVAC, and Motor Business Efficiency Incentives

    Broader source: Energy.gov [DOE]

    Prescriptive rebates are available for many HVAC and motor efficiency improvements. Pre-approval is required for all rebates. The programs are available only to non-residential customers that...

  4. Modeling and Simulation of HVAC Faulty Operations and

    E-Print Network [OSTI]

    effort and coverage: 1) proactive, performance-monitored maintenance; 2) preventive, scheduled to Maintenance Issues Liping Wang, Tianzhen Hong Environmental Energy Technologies Division January 2013 and Simulation of HVAC Faulty Operations and Performance Degradation due to Maintenance Issues Liping Wang

  5. Columbia Water and Light- Residential HVAC Rebate Program

    Broader source: Energy.gov [DOE]

    Columbia Water and Light (CWL) provides an HVAC incentive for residential customers that are replacing an older heating and cooling system. Customers should submit the mechanical permit from a...

  6. D-Zero HVAC Heat Pump Controls

    SciTech Connect (OSTI)

    Markley, Dan; /Fermilab

    2004-04-14T23:59:59.000Z

    This engineering note documents the integration of Dzero Heat Pump 1 through Heat Pump 15 into the cryo/gas process control system commonly referred to as the cryo control system. Heat pumps 1 through 15 control the ambient air temperature on the 3rd, 5th, and 6th floor office areas at Dzero. The entire Johnson HVAC control system was replaced with a Siemens control system in 1999 leaving behind the 15 heat pumps with stand-alone Johnson controllers. Now, these 15 heat pump Johnson controllers are being replaced with small stand alone Beckhoff BC9000 controllers. The Beckhoff BC9000 controllers are network able into the existing Intellution control system. The Beckhoff BC9000 controllers use the cryo private Ethernet network and an OPC driver to get data into the Intellution SCADA node databases. The BC9000 is also programmed over this same Ethernet network.

  7. Direct Digital Control- A Tool for Energy Management of HVAC Systems

    E-Print Network [OSTI]

    Swanson, K.

    Direct digital control (DDC) applied to heating, ventilating, and air-conditioning (HVAC) systems corrects many of the deficiencies of conventional automatic temperature control systems. By applying new control sequences, DDC optimizes HVAC energy...

  8. Building America Whole-House Solutions for New Homes: HVAC Design...

    Energy Savers [EERE]

    HVAC Design Strategy for a Hot-Humid Production Builder Building America Whole-House Solutions for New Homes: HVAC Design Strategy for a Hot-Humid Production Builder In this...

  9. Best Practices for Energy Efficient Cleanrooms Efficient HVAC Systems: Variable-Speed-Drive Chillers

    E-Print Network [OSTI]

    -Speed-Drive Chillers Tengfang Xu June 15, 2005 The project is funded by the California Energy Commission's Industrial Efficient Cleanrooms Efficient HVAC Water Systems: Variable-Speed-Drive Chillers Tengfang Xu Contents HVAC.............................................................................................. 2 Variable-Speed-Drive Chillers

  10. Co-simulation for performance prediction of integrated building and HVAC systems -An analysis of solution

    E-Print Network [OSTI]

    performance simulation of buildings and heating, ventilation and air- conditioning (HVAC) systems can help, heating, ventilation and air-conditioning (HVAC) systems are responsible for 10%-60% of the total building

  11. CoolCab Test and Evaluation and CoolCalc HVAC Tool Development...

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

    Evaluation and CoolCalc HVAC Tool Development CoolCab Test and Evaluation and CoolCalc HVAC Tool Development 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies...

  12. TITLE: HVAC TESTING & BALANCING FOR MAJOR AND MINOR PROJECTS OBJECTIVE AND

    E-Print Network [OSTI]

    Fernandez, Eduardo

    TITLE: HVAC TESTING & BALANCING FOR MAJOR AND MINOR PROJECTS OBJECTIVE AND PURPOSE: To provide an independent test & balance for the adjustment of all HVAC systems in all major projects and minor projects

  13. CoolCab Thermal Load Reduction Project: CoolCalc HVAC Tool Development...

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

    Thermal Load Reduction Project: CoolCalc HVAC Tool Development CoolCab Thermal Load Reduction Project: CoolCalc HVAC Tool Development 2010 DOE Vehicle Technologies and Hydrogen...

  14. Flexibility of Commercial Building HVAC Fan as Ancillary Service for Smart Grid

    E-Print Network [OSTI]

    Maasoumy, Mehdi

    2013-01-01T23:59:59.000Z

    Efficient Building Control Systems, Smart Grid and AircraftCommercial Building HVAC Fan as Ancillary Service for Smart

  15. VOLUME 16, NUMBER 3 HVAC&R RESEARCH MAY 2010 The Effects of Filtration on

    E-Print Network [OSTI]

    Siegel, Jeffrey

    VOLUME 16, NUMBER 3 HVAC&R RESEARCH MAY 2010 273 The Effects of Filtration on Pressure Drop and Energy Consumption in Residential HVAC Systems (RP-1299) Brent Stephens Atila Novoselac, PhD Jeffrey A of high-efficiency HVAC filters is a common strategy to control exposure to airborne particulate matter

  16. Department of Energy and Mineral Engineering Spring 2013 Solar Innovations -HVAC and Waste Stream Analysis

    E-Print Network [OSTI]

    Demirel, Melik C.

    PENNSTATE Department of Energy and Mineral Engineering Spring 2013 Solar Innovations - HVAC and Waste Stream Analysis Overview There are two problems that were voiced by Solar Innovations, HVAC system design and recycling stream improvement. The HVAC system was not providing even conditioning of office

  17. RF propagation in an HVAC duct system: impulse response characteristics of the channel

    E-Print Network [OSTI]

    Stancil, Daniel D.

    RF propagation in an HVAC duct system: impulse response characteristics of the channel Pavel V, the heating, ventilation, and air conditioning (HVAC) duct system in buildings is a complex network of hollow at RF and microwave frequencies of com- mon interest. HVAC ducts can be used as a wireless communication

  18. Multicriteria Genetic Tuning for the Optimization and Control of HVAC Systems

    E-Print Network [OSTI]

    Casillas Barranquero, Jorge

    Multicriteria Genetic Tuning for the Optimization and Control of HVAC Systems Rafael Alcala1, Jose of genetic algorithms for the optimization and control of Heating, Ventilating and Air Conditioning (HVAC of these systems. An optimum operation of the HVAC systems is a necessary condition for mini- mizing energy

  19. Seamless Handover in Buildings Using HVAC Ducts: A New System Architecture

    E-Print Network [OSTI]

    Stancil, Daniel D.

    Seamless Handover in Buildings Using HVAC Ducts: A New System Architecture Ariton E. Xhafa, Paisarn-- In this paper, we present an innovative solution to the handover problem in multi-story buildings using HVAC of the indoor wireless networks that use the heating, ventilation, and air conditioning (HVAC) ducts

  20. Comparison of dust from HVAC filters, indoor surfaces, and indoor air Federico Noris*

    E-Print Network [OSTI]

    Siegel, Jeffrey

    Comparison of dust from HVAC filters, indoor surfaces, and indoor air Federico Noris* , Kerry A and Environmental Engineering * Corresponding email: Fedenoris@mail.utexas.edu SUMMARY HVAC filters are long heavy metal (Pb, Cd and As) concentrations. HVAC filter microbial concentrations appear to be consistent

  1. Sentinel: Occupancy Based HVAC Actuation using Existing WiFi Infrastructure within Commercial Buildings

    E-Print Network [OSTI]

    Gupta, Rajesh

    Sentinel: Occupancy Based HVAC Actuation using Existing WiFi Infrastructure within Commercial.agarwal@cs.cmu.edu ABSTRACT Commercial buildings contribute to 19% of the primary energy consumption in the US, with HVAC systems accounting for 39.6% of this usage. To reduce HVAC energy use, prior studies have pro- posed using

  2. Multi-carrier Signal Transmission through HVAC Ducts: Experimental Results for Channel Capacity

    E-Print Network [OSTI]

    Stancil, Daniel D.

    Multi-carrier Signal Transmission through HVAC Ducts: Experimental Results for Channel Capacity, for the first time, experimental results on channel capacity of heating, ventilation, and air-conditioning (HVAC through a building HVAC duct system demonstrate the ability to transmit with a spectral efficiency of 3

  3. Theoretical Estimates of HVAC Duct Channel Capacity for High-Speed Internet Access

    E-Print Network [OSTI]

    Stancil, Daniel D.

    Theoretical Estimates of HVAC Duct Channel Capacity for High-Speed Internet Access Ariton E. Xhafa-conditioning (HVAC) ducts based on multi-carrier transmission that uses M-QAM mod- ulation and measured channel- flections in HVAC ducts). Our work also shows that data rates in excess of 300 Mbps are possible over

  4. RoomZoner: Occupancy-based Room-Level Zoning of a Centralized HVAC System

    E-Print Network [OSTI]

    Whitehouse, Kamin

    RoomZoner: Occupancy-based Room-Level Zoning of a Centralized HVAC System Tamim Sookoor & Kamin. In this paper we present a CPS that enables a centralized Heating, Ventila- tion, and Air Conditioning (HVAC application due to residential HVAC systems ac- counting for over 15% of all U.S. energy usage, making it one

  5. VOLUME 11, NUMBER 2 HVAC&R RESEARCH APRIL 2005 An Optimization-Based Approach for

    E-Print Network [OSTI]

    Luh, Peter

    VOLUME 11, NUMBER 2 HVAC&R RESEARCH APRIL 2005 215 An Optimization-Based Approach for Facility formulation and the correspond- ing solution methodology for HVAC systems. The problem is to minimize the energy and demand costs through control of HVAC units while satisfying human comfort, system dynamics

  6. Fuzzy Rule Reduction and Tuning of Fuzzy Logic Controllers for a HVAC System

    E-Print Network [OSTI]

    Granada, Universidad de

    Fuzzy Rule Reduction and Tuning of Fuzzy Logic Controllers for a HVAC System R. AlcalÂŽa, J. Alcal, Ventilating and Air Conditioning (HVAC) Systems are equip- ments usually implemented for maintaining satisfactory comfort conditions in build- ings. The design of Fuzzy Logic Controllers (FLCs) for HVAC Systems

  7. Comparison of HVAC filter test methods for particle removal efficiency Brent Stephens1,*

    E-Print Network [OSTI]

    Siegel, Jeffrey

    Comparison of HVAC filter test methods for particle removal efficiency Brent Stephens1,* , Jeffrey Introduction The use of HVAC filters in buildings is one strategy to reduce occupant exposure to particulate matter. However, HVAC filters are typically tested only in laboratory settings and little is known about

  8. Tile of the document: HVAC system component-based modeling and implementation

    E-Print Network [OSTI]

    Austin, Mark

    1 Abstract Tile of the document: HVAC system component-based modeling and implementation Karam the foundation for modeling components that are used in HVAC systems (heating, ventilation, and air conditioning such functionalities. #12;2 HVAC system component-based modeling and implementation By Karam H. Rajab Scholarly

  9. Randomized Model Predictive Control for HVAC Systems Alessandra Parisio, Damiano Varagnolo, Daniel Risberg,

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    Randomized Model Predictive Control for HVAC Systems Alessandra Parisio, Damiano Varagnolo, Daniel Conditioning (HVAC) sys- tems play a fundamental role in maintaining acceptable ther- mal comfort and Indoor. A possible solu- tion is to develop effective control strategies for HVAC sys- tems, but this is complicated

  10. BLACK-BOX MODELLING OF HVAC SYSTEM: IMPROVING THE PERFORMANCES OF NEURAL NETWORKS

    E-Print Network [OSTI]

    Boyer, Edmond

    BLACK-BOX MODELLING OF HVAC SYSTEM: IMPROVING THE PERFORMANCES OF NEURAL NETWORKS Eric FOCK Ile de La RĂ©union - FRANCE ABSTRACT This paper deals with neural networks modelling of HVAC systems of HVAC system can be modelled using manufacturer design data presented as derived performance maps

  11. Chapter 19: HVAC Controls (DDC/EMS/BAS) Evaluation Protocol

    SciTech Connect (OSTI)

    Romberger, J.

    2014-11-01T23:59:59.000Z

    The HVAC Controls Evaluation Protocol is designed to address evaluation issues for direct digital controls/energy management systems/building automation systems (DDC/EMS/BAS) that are installed to control heating, ventilation, and air-conditioning (HVAC) equipment in commercial and institutional buildings. (This chapter refers to the DDC/EMS/BAS measure as HVAC controls.) This protocol may also be applicable to industrial facilities such as clean rooms and labs, which have either significant HVAC equipment or spaces requiring special environmental conditions. This protocol addresses only HVAC-related equipment and the energy savings estimation methods associated with installing such control systems as an energy efficiency measure. The affected equipment includes: Air-side equipment (air handlers, direct expansion systems, furnaces, other heating- and cooling-related devices, terminal air distribution equipment, and fans); Central plant equipment (chillers, cooling towers, boilers, and pumps). These controls may also operate or affect other end uses, such as lighting, domestic hot water, irrigation systems, and life safety systems such as fire alarms and other security systems. Considerable nonenergy benefits, such as maintenance scheduling, system component troubleshooting, equipment failure alarms, and increased equipment lifetime, may also be associated with these systems. When connected to building utility meters, these systems can also be valuable demand-limiting control tools. However, this protocol does not evaluate any of these additional capabilities and benefits.

  12. VARIABLE SPEED INTEGRATED INTELLIGENT HVAC BLOWER

    SciTech Connect (OSTI)

    Shixiao Wang; Herman Wiegman; Wilson Wu; John Down; Luana Iorio; Asha Devarajan; Jing Wang; Ralph Carl; Charlie Stephens; Jeannine Jones; Paul Szczesny

    2001-11-14T23:59:59.000Z

    This comprehensive topical report discusses the key findings in the development of a intelligent integrated blower for HVAC applications. The benefits of rearward inclined blades over that of traditional forward inclined blades is well documented and a prototype blower design is presented. A comparison of the proposed blower to that of three typical units from the industry is presented. The design of the blower housing is also addressed and the impact of size limitations on static efficiency is discussed. Issues of air flow controllability in the rearward inclined blower is addressed and a solution to this problem is proposed. Several motor design options are discussed including inside-out radial flux designs and novel axial flux designs, all are focused on the various blower needs. The control of the motor-blower and airflow through the use of a high density inverter stage and modern digital signal processor is presented. The key technical challenges of the approach are discussed. The use of the motor as a sensor in the larger heating/ventilating system is also discussed. Diagnostic results for both the motor itself and the blower system are presented.

  13. Energy Upgrades to Save Small Arizona Town Big Money | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:RevisedAdvisoryStandard |inHVAC |Department of EnergyTricks Lead toUpgrades to

  14. Energy-Efficient Building HVAC Control Using Hybrid System LBMPC

    E-Print Network [OSTI]

    Aswani, Anil; Taneja, Jay; Krioukov, Andrew; Culler, David; Tomlin, Claire

    2012-01-01T23:59:59.000Z

    Improving the energy-efficiency of heating, ventilation, and air-conditioning (HVAC) systems has the potential to realize large economic and societal benefits. This paper concerns the system identification of a hybrid system model of a building-wide HVAC system and its subsequent control using a hybrid system formulation of learning-based model predictive control (LBMPC). Here, the learning refers to model updates to the hybrid system model that incorporate the heating effects due to occupancy, solar effects, outside air temperature (OAT), and equipment, in addition to integrator dynamics inherently present in low-level control. Though we make significant modeling simplifications, our corresponding controller that uses this model is able to experimentally achieve a large reduction in energy usage without any degradations in occupant comfort. It is in this way that we justify the modeling simplifications that we have made. We conclude by presenting results from experiments on our building HVAC testbed, which s...

  15. Cyclotron Institute Upgrade Project

    SciTech Connect (OSTI)

    Clark, Henry [Texas A& M University; Yennello, Sherry [Texas A& M University; Tribble, Robert [Texas A& M University

    2014-08-26T23:59:59.000Z

    The Cyclotron Institute at Texas A&M University has upgraded its accelerator facilities to extend research capabilities with both stable and radioactive beams. The upgrade is divided into three major tasks: (1) re-commission the K-150 (88”) cyclotron, couple it to existing beam lines to provide intense stable beams into the K-500 experimental areas and use it as a driver to produce radioactive beams; (2) develop light ion and heavy ion guides for stopping radioactive ions created with the K-150 beams; and (3) transport 1+ ions from the ion guides into a charge-breeding electron-cyclotron-resonance ion source (CB-ECR) to produce highly-charged radioactive ions for acceleration in the K-500 cyclotron. When completed, the upgraded facility will provide high-quality re-accelerated secondary beams in a unique energy range in the world.

  16. Advanced Photon Source Upgrade Project

    ScienceCinema (OSTI)

    Mitchell, John; Gibson, Murray; Young, Linda; Joachimiak, Andrzej

    2013-04-19T23:59:59.000Z

    Upgrade to Advanced Photon Source announced by Department Of Energy. Read more: http://go.usa.gov/ivZ

  17. SRS control system upgrade requirements

    SciTech Connect (OSTI)

    Hill, L.F.

    1998-08-04T23:59:59.000Z

    This document defines requirements for an upgrade of the Sodium Removal System (SRS) control system. The upgrade is being performed to solve a number of maintainability and operability issues. The upgraded system will provide the same functions, controls and interlocks as the present system, and in addition provide enhanced functionality in areas discussed in this document.

  18. This paper has been downloaded from the Building and Environmental Thermal Systems Research Group at Oklahoma State University (http://www.hvac.okstate.edu).

    E-Print Network [OSTI]

    at Oklahoma State University (http://www.hvac.okstate.edu). The correct citation for the paper is: Spitler, J.D. 2007. Research Planning for the HVAC&R Industry. HVAC&R Research 13(5):681- 682. #12;VOLUME 13, NUMBER 5 HVAC&R RESEARCH SEPTEMBER 2007 681 EDITORIAL Research Planning for the HVAC&R Industry Jeffrey D

  19. Tevatron detector upgrades

    SciTech Connect (OSTI)

    Lipton, R.; /Fermilab

    2005-01-01T23:59:59.000Z

    The D0 and CDF experiments are in the process of upgrading their detectors to cope with the high luminosities projected for the remainder of Tevatron Run II. They discuss the expected Tevatron environment through 2009, the detector challenges due to increasing luminosity in this period, and the solutions undertaken by the two experiments to mitigate detector problems and maximize physics results.

  20. Biochemical upgrading of oils

    DOE Patents [OSTI]

    Premuzic, E.T.; Lin, M.S.

    1999-01-12T23:59:59.000Z

    A process for biochemical conversion of heavy crude oils is provided. The process includes contacting heavy crude oils with adapted biocatalysts. The resulting upgraded oil shows, a relative increase in saturated hydrocarbons, emulsions and oxygenates and a decrease in compounds containing organic sulfur, organic nitrogen and trace metals. Adapted microorganisms which have been modified under challenged growth processes are also disclosed. 121 figs.

  1. Biochemical upgrading of oils

    DOE Patents [OSTI]

    Premuzic, Eugene T. (East Moriches, NY); Lin, Mow S. (Rocky Point, NY)

    1999-01-12T23:59:59.000Z

    A process for biochemical conversion of heavy crude oils is provided. The process includes contacting heavy crude oils with adapted biocatalysts. The resulting upgraded oil shows, a relative increase in saturated hydrocarbons, emulsions and oxygenates and a decrease in compounds containing in organic sulfur, organic nitrogen and trace metals. Adapted microorganisms which have been modified under challenged growth processes are also disclosed.

  2. ISIS upgrades David Findlay

    E-Print Network [OSTI]

    McDonald, Kirk

    ISIS upgrades David Findlay Head, Accelerator Division ISIS Department Rutherford Appleton Laboratory / STFC Proton Accelerators for Science and Innovation, 12­14 January 2012, FNAL #12;2 ISIS World for research in the physical and life sciences National and international community of >2000 scientists -- ISIS

  3. Utilizing Passive Ventilation to Complement HVAC Systems in Enclosed Buildings

    E-Print Network [OSTI]

    Mountziaris, T. J.

    Utilizing Passive Ventilation to Complement HVAC Systems in Enclosed Buildings Tom Rogg REU Student are important considerations in building design. Incorporation of a combination of passive ventilation systems of the National Science Foundation. Research Objectives · To provide proof of concept that a passive ventilation

  4. Performance Validation and Energy Analysis of HVAC Systems using Simulation

    E-Print Network [OSTI]

    Diamond, Richard

    monitored system outputs for performance validation and energy analysis. The paper presents results from1 Performance Validation and Energy Analysis of HVAC Systems using Simulation Tim Salsbury and Rick Francisco. 1 Introduction Significant potential exists with the current technology of energy management

  5. Department of Mechanical Engineering Spring 2012 HVAC Filter Sensor -Global

    E-Print Network [OSTI]

    Demirel, Melik C.

    , a pressure sensor, a fan, and a photo-resistor. The photo-resistor and fan concepts were developed in the home and communicates wirelessly with the sensor. Either the photo-resistor or the fan can be usedPENNSTATE Department of Mechanical Engineering Spring 2012 HVAC Filter Sensor - Global Overview

  6. Handover Performance of HVAC Duct Based Indoor Wireless Networks

    E-Print Network [OSTI]

    Stancil, Daniel D.

    in indoor wireless net- works (IWN) that use heating, ventilation, and air conditioning (HVAC) ducts]. An alternative approach to transmitt/receive the RF signal is to use heating, ventilation, and airconditioning and is connected to one or more antennas in the duct. Each antenna acts as a remote antenna (RA) for a particular

  7. SMUD's HVAC Programs Ravi Patel-Program Planning

    E-Print Network [OSTI]

    California at Davis, University of

    with building envelop · Higher overall rebate ­ More measures may be added soon · Thermostats (pending smart-grid1 SMUD's HVAC Programs 5-7-13 Ravi Patel- Program Planning Bruce Baccei- R&D #12;SMUD's Residential program planning process · What's on the horizon for Title 24, CEE, etc? · Modify programs accordingly

  8. Thermal Modeling for a HVAC Controlled Real-life Yong Fu1, Mo Sha1, Chengjie Wu1, Andrew Kutta1, Anna Leavey2, Chenyang Lu1,

    E-Print Network [OSTI]

    Lu, Chenyang

    consumption in build- ings is heating, ventilation, and air conditioning (HVAC). For an HVAC system to provide of energy consumption in buildings is heating, ventilation, and air conditioning (HVAC), accounting for 33

  9. Assessment of organic compound exposures, thermal comfort parameters, and HVAC system-driven air exchange rates in public school portable classrooms in California

    E-Print Network [OSTI]

    Shendell, Derek Garth

    2010-01-01T23:59:59.000Z

    SPECIFY UNITS) when heat (of HVAC) is turned off?using the heat (from HVAC)? A. B. C. D. January Februaryair conditionmg (from HVAC)? A. B. C. D. January February

  10. Total Quality Commissioning for HVAC Systems to Assure High Performance Throughout the Whole Life Cycle 

    E-Print Network [OSTI]

    Maisey, G.; Milestone, B.

    2005-01-01T23:59:59.000Z

    TOTAL QUALITY COMMISSIONING FOR HVAC SYSTEMS TO ASSURE HIGH PERFORMANCE THROUGHOUT THE WHOLE LIFE CYCLE By: Grahame E. Maisey, P.E., and Beverly Milestone, LEED AP Building Services Consultants INTRODUCTION Current HVAC systems... not provide a life cycle, high performance assurance program. Continuous commissioning is being used to continually adjust the HVAC systems to regain good performance from the original systems, but again, is not a life cycle, high performance assurance...

  11. R&D Opportunity Assessment: Joining Technologies in HVAC&R -...

    Energy Savers [EERE]

    Joining Technologies in HVAC&R More Documents & Publications Research & Development Roadmap: Next-Generation Low Global Warming Potential Refrigerants Advanced Rotating Heat...

  12. Quantitative Methods for Comparing Different HVAC Control Schemes

    E-Print Network [OSTI]

    Aswani, Anil; Taneja, Jay; Krioukov, Andrew; Culler, David; Tomlin, Claire

    2012-01-01T23:59:59.000Z

    Experimentally comparing the energy usage and comfort characteristics of different controllers in heating, ventilation, and air-conditioning (HVAC) systems is difficult because variations in weather and occupancy conditions preclude the possibility of establishing equivalent experimental conditions across the order of hours, days, and weeks. This paper is concerned with defining quantitative metrics of energy usage and occupant comfort, which can be computed and compared in a rigorous manner that is capable of determining whether differences between controllers are statistically significant in the presence of such environmental fluctuations. Experimental case studies are presented that compare two alternative controllers (a schedule controller and a hybrid system learning-based model predictive controller) to the default controller in a building-wide HVAC system. Lastly, we discuss how our proposed methodology may also be able to quantify the efficiency of other building automation systems.

  13. Integrated high efficiency blower apparatus for HVAC systems

    DOE Patents [OSTI]

    Liu, Xiaoyue; Weigman, Herman; Wang, Shixiao

    2007-07-24T23:59:59.000Z

    An integrated centrifugal blower wheel for a heating, ventilation and air conditioning (HVAC) blower unit includes a first blade support, a second blade support, and a plurality of S-shaped blades disposed between the first and second blade supports, wherein each of the S-shaped blades has a trailing edge bent in a forward direction with respect to a defined direction of rotation of the wheel.

  14. Experimental results of a predictive neural network HVAC controller

    SciTech Connect (OSTI)

    Jeannette, E.; Assawamartbunlue, K.; Kreider, J.F. [Univ. of Colorado, Boulder, CO (United States); Curtiss, P.S. [Architectural Energy Corp., Boulder, CO (United States)

    1998-12-31T23:59:59.000Z

    Proportional, integral, and derivative (PID) control is widely used in many HVAC control processes and requires constant attention for optimal control. Artificial neural networks offer the potential for improved control of processes through predictive techniques. This paper introduces and shows experimental results of a predictive neural network (PNN) controller applied to an unstable hot water system in an air-handling unit. Actual laboratory testing of the PNN and PID controllers show favorable results for the PNN controller.

  15. Using Energy Management Control Systems for HVAC Operational Diagnostics

    E-Print Network [OSTI]

    Stum, K.

    1998-01-01T23:59:59.000Z

    USING ENERGY MANAGEMENT CONTROL SYSTEMS FOR HVAC OPERATIONAL DIAGNOSTICS Karl Stum, P.E. Portland Energy Conservation, Inc. 92 1 SW Washington, Suite 3 12 Portland, OR 97205 503-248-4636 Fax 503-295-0820 ABSTRACT The power and flexibility... Proceedings, June 1997. Meyers, S.; E. Mills; A. Chen; L. Demsetz "Building Data Visualization for Diagnostics," ASHRAE Journal, June 1996. PECl (Portland Energy Conservation, Inc.). Energy Management C0ntrof Systems-A Practical Guiak, 1997. Sparks, R...

  16. Design and tuning of robust PID controller for HVAC systems

    SciTech Connect (OSTI)

    Kasahara, Masato; Matsuba, Tadahiko; Kuzuu, Yoshiaki; Yamazaki, Takanori; Hashimoto, Yukihiro; Kamimura, Kazuyuki; Kurosu, Shigeru

    1999-07-01T23:59:59.000Z

    This paper concerns the development of a new design and tuning method for use with robust proportional-plus-integral-plus-derivative (PID) controllers that are commonly used in the heating, ventilating, and air-conditioning (HVAC) fields. The robust PID controller is designed for temperature control of a single-zone environmental space. Although the dynamics of environmental space are described by higher-order transfer functions, most HVAC plants are approximated by first-order lag plus deadtime systems. Its control performance is examined for this commonly approximated controlled plant. Since most HVAC plants are complex with nonlinearity, distributed parameters, and multivariables, a single set of PID gains does not necessarily yield a satisfactory control performance. For this reason, the PID controller must be designed as a robust control system considering model uncertainty caused by changes in characteristics of the plant. The PID gains obtained by solving a two-disk type of mixed sensitivity problem can be modified by contrast to those tuned by the traditional Ziegler-Nichols rule. The results, which are surprisingly simple, are given as linear functions of ratio of deadtime to time constant for robustness. The numerical simulation and the experiments on a commercial-size test plant for air conditioning suggest that the robust PID controller proposed in this paper is effective enough for practical applications.

  17. Upgraded Coal Interest Group

    SciTech Connect (OSTI)

    Evan Hughes

    2009-01-08T23:59:59.000Z

    The Upgraded Coal Interest Group (UCIG) is an EPRI 'users group' that focuses on clean, low-cost options for coal-based power generation. The UCIG covers topics that involve (1) pre-combustion processes, (2) co-firing systems and fuels, and (3) reburn using coal-derived or biomass-derived fuels. The UCIG mission is to preserve and expand the economic use of coal for energy. By reducing the fuel costs and environmental impacts of coal-fired power generation, existing units become more cost effective and thus new units utilizing advanced combustion technologies are more likely to be coal-fired.

  18. Proposal for the Award of a Contract for Maintenance, Operation and Minor Installation Work for CERN Cooling and HVAC Systems

    E-Print Network [OSTI]

    1996-01-01T23:59:59.000Z

    Proposal for the Award of a Contract for Maintenance, Operation and Minor Installation Work for CERN Cooling and HVAC Systems

  19. The Fermilab Linac Upgrade

    SciTech Connect (OSTI)

    Noble, R.J.

    1991-02-01T23:59:59.000Z

    The Fermilab Linac Upgrade is planned to increase the energy of the H- linac from 200 to 400 MeV. This is intended to reduce the incoherent space-charge tuneshift at injection into the 8 GeV Booster which can limit either the brightness or the total intensity of the beam. The Linac Upgrade will be achieved by replacing the last four 201.25 MHz drift-tube tanks which accelerate the beam from 116 to 200 MeV, with seven 805 MHz side-coupled cavity modules operating at an average axial field of abut 7.5 MV/m. This will allow acceleration to 400 MeV in the existing Linac enclosure. Each accelerator module will be driven with a klystron-based rf power supply. A prototype rf modulator has been built and tested at Fermilab, and a prototype 12 MW klystron is being fabricated by Litton Electron Devices. Fabrication of production accelerator modules is in progress. 8 figs., 4 tabs.

  20. Upgrading the Vanadium Redox Battery | EMSL

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

    Upgrading the Vanadium Redox Battery Upgrading the Vanadium Redox Battery New electrolyte mix increases energy storage by 70 percent After developing a more effective...

  1. Webinar: "Upgrading Renewable and Sustainable Carbohydrates for...

    Office of Environmental Management (EM)

    "Upgrading Renewable and Sustainable Carbohydrates for the Production of High Energy Density Fuels" Webinar: "Upgrading Renewable and Sustainable Carbohydrates for the Production...

  2. Campus Utility Upgrades | Argonne National Laboratory

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

    will provide essential support for the Argonne Leadership Computing Facility high performance computing upgrades, expected to occur in FY 2018. Campus utility upgrades also support...

  3. ETME 422 -REFRIGERATION & HVAC SYSTEMS FALL 2011 LEC -10:00 -10:50am M W F RH 312

    E-Print Network [OSTI]

    Dyer, Bill

    10/31/2011 ETME 422 - REFRIGERATION & HVAC SYSTEMS FALL 2011 LEC - 10:00 - 10:50am M W F RH 312. -- Refrigeration and heating, ventilating and air-conditioning (HVAC) for comfort and industrial applications, low temperature refrigeration cycles; air distribution and fan-duct analysis, design/selection of HVAC

  4. Minimization of energy consumption in HVAC systems with data-driven models and an interior-point method

    E-Print Network [OSTI]

    Kusiak, Andrew

    Minimization of energy consumption in HVAC systems with data-driven models and an interior-driven approach is applied to minimize energy consumption of a heating, ventilating, and air conditioning (HVAC online 13 June 2014 Keywords: HVAC Interior-point method Internal heat gain Multilayer perceptron

  5. Simulation of Control Options for HVAC Management of a Typical Office Julien CAILLET julien.caillet@mines-paristech.fr

    E-Print Network [OSTI]

    Boyer, Edmond

    Simulation of Control Options for HVAC Management of a Typical Office Building. Julien CAILLET thermal comfort and to reduce energy consumption of buildings. Among defect correction, HVAC control appears as a way of significant improvement. HVAC control is examined by using a dynamic simulation

  6. Proceedings of Healthy Buildings 2009 Paper 535 HVAC filters as "passive" samplers: fate analysis of indoor particles

    E-Print Network [OSTI]

    Siegel, Jeffrey

    Proceedings of Healthy Buildings 2009 Paper 535 HVAC filters as "passive" samplers: fate analysis: fedenoris@mail.utexas.edu SUMMARY To assess the potential use of HVAC filters as passive indoor samplers, exfiltration, and capture in the HVAC filter. The results suggest that large particles are likely to deposit

  7. Review of Pre- and Post-1980 Buildings in CBECS - HVAC Equipment

    SciTech Connect (OSTI)

    Winiarski, David W.; Jiang, Wei; Halverson, Mark A.

    2006-12-01T23:59:59.000Z

    PNNL was tasked by DOE to look at HVAC systems and equipment for Benchmark buildings based on 2003 CBECS data. This white paper summarizes the results of PNNL’s analysis of 2003 CBECS data and provides PNNL’s recommendations for HVAC systems and equipment for use in the Benchmark buildings.

  8. Monitoring-based HVAC Commissioning of an Existing Office Building for Energy Efficiciency

    E-Print Network [OSTI]

    Wang, Liping

    2014-01-01T23:59:59.000Z

    EnergyPlus, Trend Data Introduction The performance of HVACthe commissioning of HVAC systems. Analyzing trend data is aHVAC systems, such as improper operations of air-side economizers, simultaneous heating and cooling, and ineffective optimal start, were identified through trend

  9. A LIBRARY OF HVAC COMPONENT MODELS FOR USE IN AUTOMATED1 DIAGNOSTICS2

    E-Print Network [OSTI]

    A LIBRARY OF HVAC COMPONENT MODELS FOR USE IN AUTOMATED1 DIAGNOSTICS2 3 4 Peng Xu, Philip Haves a library of equipment reference models developed for automated fault detection and diagnosis of secondary of automatic documentation methods in the library. INTRODUCTION The increasing complexity of building HVAC

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

    E-Print Network [OSTI]

    NREL research determines optimal HVAC system design for proper air mixing and thermal comfort in homes. As U.S. homes become more energy efficient, heating, ventilation, and cooling (HVAC) systems to optimize overall space conditioning system design in both heating and cooling modes. Potential Impact

  11. Tenneco upgrades natural gasoline

    SciTech Connect (OSTI)

    O'Gorman, E.K.

    1986-08-01T23:59:59.000Z

    Tenneco Oil Co. recently completed a natural gasoline upgrading project at its LaPorte, Tex., facility. The project was started in October 1985. The purpose was to fractionate natural gasoline and isomerize the n-pentane component. Three factors made this a particularly attractive project for the LaPorte complex: 1. The phase down of lead in gasoline made further processing of natural gasoline desirable. 2. Idle equipment and trained personnel were available at the plant as a result of a switch of Tenneco's natural gas liquids (NGL) fractionation to its Mont Belvieu, Tex., facility. 3. The plant interconnects with Houston's local markets. It has pipelines to Mont Belvieu, Texas City, and plants along the Houston Ship Channel, as well as truck, tank car, and barge-loading facilities. Here are the details on the operation of the facilities, the changes which were required to enable the plant to operate successfully, and how this conversion was completed in a timely fashion.

  12. Index to Evaluate Energy Efficiency of the Building HVAC System

    E-Print Network [OSTI]

    Wang, L.; Wang, L.; Claridge,D.

    2014-01-01T23:59:59.000Z

    1An Index to Evaluate Energy Efficiency of the Entire Building HVAC System Presented by Dr. Claridge Date: 09/15/2014 ESL-IC-14-09-15 Proceedings of the 14th International Conference for Enhanced Building Operations, Beijing, China, September 14...-17, 2014 2Outline •Why we need the Energy/Load Ratio •How to get the Energy/Load Ratio •Methodology Adjustment •Case Study •Results Showed by tables and Plots ESL-IC-14-09-15 Proceedings of the 14th International Conference for Enhanced Building Operations...

  13. LDV HVAC Model Development and Validation | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetter Report:40PM to 2:05PMDOE-STD-1107-97LSEED:LDV HVAC Model

  14. Global Scratch Upgrade in Progress

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

    Rates, Connection to PDSF October 29, 2013 The most used file system at the National Energy Research Scientific Computing Center (NERSC)-global scratch-just got an upgrade. As...

  15. ISIS Project Upgrade Campus Community

    E-Print Network [OSTI]

    Massachusetts at Lowell, University of

    ISIS Project Upgrade Campus Community Page Navigation Page | 1 Page navigation has changed in the ISIS Application. This document provides you with the new location of all your key Campus Community the Navigation Pagelets": ISIS.UML..EDU #12;

  16. MAST Upgrade - Construction Status

    E-Print Network [OSTI]

    Milnes, Joe; Dhalla, Fahim; Fishpool, Geoff; Hill, John; Katramados, Ioannis; Martin, Richard; Naylor, Graham; O'Gorman, Tom; Scannell, Rory

    2015-01-01T23:59:59.000Z

    The Mega Amp Spherical Tokamak (MAST) is the centre piece of the UK fusion research programme. In 2010, a MAST Upgrade programme was initiated with three primary objectives, to contribute to: 1) Testing reactor concepts (in particular exhaust solutions via a flexible divertor allowing Super-X and other extended leg configurations); 2) Adding to the knowledge base for ITER (by addressing important plasma physics questions and developing predictive models to help optimise ITER performance of ITER) and 3) Exploring the feasibility of using a spherical tokamak as the basis for a fusion Component Test Facility. With the project mid-way through its construction phase, progress will be reported on a number of the critical subsystems. This will include manufacture and assembly of the coils, armour and support structures that make up the new divertors, construction of the new set coils that make up the centre column, installation of the new power supplies for powering the divertor coils and enhanced TF coil set, progr...

  17. A systems approach to retrofitting residential HVAC systems

    SciTech Connect (OSTI)

    McWilliams, J.A.; Walker, I.S.

    2004-05-01T23:59:59.000Z

    A Best Practices Guide for retrofitting residential HVAC systems has recently been completed by DOE. The guide uses diagnostics and checklists to guide the user to specific retrofit packages that maximize retrofit energy savings, comfort and safety potential. The guide uses a systems approach to retrofitting where the interaction of different building components is considered throughout the retrofit selection process. For example, added building envelope insulation reduces building loads so that smaller capacity HVAC systems can be used. In this study, several houses were surveyed using the Best Practices Guide and a single house was selected for retrofitting. The objectives were to demonstrate how a successful system-wide retrofit can be carried out and to provide feedback to improve the guide. Because it represents a departure from current practice, a key aspect of this study was to investigate the interactions with contractors and code officials who are unfamiliar with the systems approach. The study found that the major barrier to the systems approach in retrofits was in changing the working practices of contractors and code officials.

  18. Energy Upgrade California Drives Demand From Behind the Wheel...

    Energy Savers [EERE]

    Upgrade California Drives Demand From Behind the Wheel Energy Upgrade California Drives Demand From Behind the Wheel Photo of a trailer with the Energy Upgrade California logo and...

  19. Conversion Technologies for Advanced Biofuels - Bio-Oil Upgrading...

    Office of Environmental Management (EM)

    Oil Upgrading Conversion Technologies for Advanced Biofuels - Bio-Oil Upgrading PNNL report-out at the CTAB webinar on Bio-Oil Upgrading. ctabwebinarbiooilsupgrading.pdf More...

  20. Joint-Frequency Bins versus Conventional Bin Weather Data in Analysis of HVAC System Operation

    E-Print Network [OSTI]

    Jones, A.; Baltazar, J. C.; Claridge, D. E.

    this study the use of joint-frequency bins has relative added value to the analysis of HVAC system operation depending on whether the system is dominated by ventilation loads....

  1. CO2 - Based Demand-Controlled Ventilation Control Strategies for Multi-Zone HVAC Systems

    E-Print Network [OSTI]

    Nassif, N.

    2011-01-01T23:59:59.000Z

    CO2-based demand-controlled ventilation DCV strategy offers a great opportunity to reduce energy consumption in HVAC systems while providing the required ventilation. However, implementing CO2-based DCV under ASHRAE 62.1.2004 through 2010...

  2. An implementation of co-simulation for performance prediction of innovative integrated HVAC systems in buildings

    E-Print Network [OSTI]

    Trcka, Marija

    2010-01-01T23:59:59.000Z

    Heating and Cooling Task 12B and IEA Energy Conservation inNeymark, J. and Judkoff, R. 2002. IEA HVAC BESTEST volume 1,Technical report of a IEA Solar Heating and Cooling

  3. UNIT NUMBER: C-304 Buildina/HVAC Picina Svstem- Soil Backfill

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

    63 UNIT NUMBER: C-304 BuildinaHVAC Picina Svstem- Soil Backfill UNIT NAME: REGULATORY STATUS: AOC .OCATION: Adjacent to C-304 building APPROXIMATE DIMENSIONS: 100 feet wide by 200...

  4. Requirements for Commissioning HVAC Systems Using BEMS and Commissioning the BEMS Itself Based on Questionnaire Surveys

    E-Print Network [OSTI]

    Yoshida, H.; Vaezi-Nejad, H.; Choiniere, D.; Wang, F.

    2004-01-01T23:59:59.000Z

    In this paper the present status and requirements for commissioning of HVAC Systems using Building Energy Management Systems (BEMS) and commissioning the BEMS itself are investigated and summarized. The information presented is based on the results...

  5. Methodology to Analyze the Sensitivity of Building Energy Consumption to HVAC System Sensor Error 

    E-Print Network [OSTI]

    Ma, Liang

    2012-02-14T23:59:59.000Z

    This thesis proposes a methodology for determining sensitivity of building energy consumption of HVAC systems to sensor error. It is based on a series of simulations of a generic building, the model for which is based on several typical input...

  6. Fast prototyping and Indirect Adaptive GPC temperature control of a class of passive HVAC

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Fast prototyping and Indirect Adaptive GPC temperature control of a class of passive HVAC TAWEGOUM (temperature, moisture) is a dominating factor, on the one hand to deal with the market quantitative

  7. A Qualitive Modeling Approach for Fault Detection and Diagnosis on HVAC Systems

    E-Print Network [OSTI]

    Muller, T.; Rehault, N.; Rist, T.

    2013-01-01T23:59:59.000Z

    This paper describes the basics and first test results of a model based approach using qualitative modeling to perform Fault Detection and Diagnostics (FDD) on HVAC and R systems. A quantized system describing the qualitative behavior of a...

  8. What are the Best HVAC Solutions for Low-Load, High Performance Homes?"

    Broader source: Energy.gov [DOE]

    This presentation was given at the Summer 2012 DOE Building America meeting on July 26, 2012, and addressed the question What are the best HVAC solutions for low-load, high performance homes?"

  9. Particle loading rates for HVAC filters, heat exchangers, and ducts Nomenclature

    E-Print Network [OSTI]

    Siegel, Jeffrey

    particle mass emission rate distribution func- tion for resuspension (mg/lm h) Es particle mass emission The results in this paper suggest important factors that lead to particle deposition on HVAC components

  10. Computational Study on Thermal Properties of HVAC System with Building Structure Thermal Storage

    E-Print Network [OSTI]

    Sato, Y.; Sagara, N.; Ryu, Y.; Maehara, K.; Nagai, T.

    2007-01-01T23:59:59.000Z

    Building structure thermal storage (BSTS) HVAC systems can store heat during nighttime thermal storage operation (nighttime operation hours) by using off-peak electricity and release it in the daytime air-conditioning operation (daytime operation...

  11. Development of HVAC System Performance Criteria Using Factorial Design and DOE-2 Simulation

    E-Print Network [OSTI]

    Hou, D.; Jones, J. W.; Hunn, B. D.; Banks, J. A.

    1996-01-01T23:59:59.000Z

    A new approach is described for the development of Heating, Ventilating, and Air-conditioning (HVAC) System Performance Criteria for the Texas Building Energy Design Standard. This approach integrates a design of experimental methodology and DOE-2...

  12. A Unified and Integrated Energy Management System for HVAC Spaces and Power House 

    E-Print Network [OSTI]

    Kaya, A.; Debban, G. D.

    1988-01-01T23:59:59.000Z

    This paper describes a totally integrated energy management system throughout the plant and facilities. The equipment involves: the power plant (boilers, cogeneration turbines, chillers); HVAC of buildings; air handling and other distribution...

  13. Airborne Particulate Matter in HVAC Systems and its Influence on Indoor Air Quality

    E-Print Network [OSTI]

    Fu, Z.; Li, N.; Wang, H.

    2006-01-01T23:59:59.000Z

    ], microorganisms [2], in the case of abnormal maintenance. Because there are all kinds of components in the duct systems, tapping the law of particle distribution in HVAC systems is not an easy work. Generally speaking, flow in the duct system... is turbulent except those in some kind of components like filters. Particle movement, especially particle deposition, is strongly related to organized structures in near-wall turbulence [3]. The mechanisms governing particle transport in HVAC systems...

  14. Co-simulation of innovative integrated HVAC systems in buildings

    SciTech Connect (OSTI)

    Trcka, Marija; Hensena, Jan L.M.; Wetter, Michael

    2010-06-21T23:59:59.000Z

    Integrated performance simulation of buildings HVAC systems can help in reducing energy consumption and increasing occupant comfort. However, no single building performance simulation (BPS) tool offers sufficient capabilities and flexibilities to analyze integrated building systems and to enable rapid prototyping of innovative building and system technologies. One way to alleviate this problem is to use co-simulation, as an integrated approach to simulation. This article elaborates on issues important for co-simulation realization and discusses multiple possibilities to justify the particular approach implemented in the here described co-simulation prototype. The prototype is validated with the results obtained from the traditional simulation approach. It is further used in a proof-of-concept case study to demonstrate the applicability of the method and to highlight its benefits. Stability and accuracy of different coupling strategies are analyzed to give a guideline for the required coupling time step.

  15. An Evaluation of the HVAC Load Potential for Providing Load Balancing Service

    SciTech Connect (OSTI)

    Lu, Ning

    2012-09-30T23:59:59.000Z

    This paper investigates the potential of providing aggregated intra-hour load balancing services using heating, ventilating, and air-conditioning (HVAC) systems. A direct-load control algorithm is presented. A temperature-priority-list method is used to dispatch the HVAC loads optimally to maintain consumer-desired indoor temperatures and load diversity. Realistic intra-hour load balancing signals were used to evaluate the operational characteristics of the HVAC load under different outdoor temperature profiles and different indoor temperature settings. The number of HVAC units needed is also investigated. Modeling results suggest that the number of HVACs needed to provide a {+-}1-MW load balancing service 24 hours a day varies significantly with baseline settings, high and low temperature settings, and the outdoor temperatures. The results demonstrate that the intra-hour load balancing service provided by HVAC loads meet the performance requirements and can become a major source of revenue for load-serving entities where the smart grid infrastructure enables direct load control over the HAVC loads.

  16. Case study field evaluation of a systems approach to retrofitting a residential HVAC system

    SciTech Connect (OSTI)

    Walker, Iain S.; McWiliams, Jennifer A.; Konopacki, Steven J.

    2003-09-01T23:59:59.000Z

    This case study focusing on a residence in northern California was undertaken as a demonstration of the potential of a systems approach to HVAC retrofits. The systems approach means that other retrofits that can affect the HVAC system are also considered. For example, added building envelope insulation reduces building loads so that smaller capacity HVAC system can be used. Secondly, we wanted to examine the practical issues and interactions with contractors and code officials required to accomplish the systems approach because it represents a departure from current practice. We identified problems in the processes of communication and installation of the retrofit that led to compromises in the final energy efficiency of the HVAC system. These issues must be overcome in order for HVAC retrofits to deliver the increased performance that they promise. The experience gained in this case study was used to optimize best practices guidelines for contractors (Walker 2003) that include building diagnostics and checklists as tools to assist in ensuring the energy efficiency of ''house as a system'' HVAC retrofits. The best practices guidelines proved to be an excellent tool for evaluating the eight existing homes in this study, and we received positive feedback from many potential users who reviewed and used them. In addition, we were able to substantially improve the energy efficiency of the retrofitted case study house by adding envelope insulation, a more efficient furnace and air conditioner, an economizer and by reducing duct leakage.

  17. LOWELL ADDS ENERGY EFFICIENCY TO HISTORIC UPGRADES | Department...

    Energy Savers [EERE]

    uses were commercial. The program focused on air sealing, as well as replacing antiquated heating, ventilation, and air conditioning (HVAC) systems, through a small group of...

  18. EFITviewer UpgradesEFITviewer Upgrades MDSplus Event Management System

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    Summation System. red values indicate an alarm condition. #12;Web Tool Upgrades · Different Signals may is automatic · Signal names saved in a file may be pasted into Web Tool fields · "Memory" of previous entries improved #12;#12;#12;Web Tools can overlay profiles #12;

  19. Quality Control, Standardization of Upgrades, and Workforce Expectatio...

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

    Quality Control, Standardization of Upgrades, and Workforce Expectations Quality Control, Standardization of Upgrades, and Workforce Expectations Better Buildings Residential...

  20. Residential HVAC Data, Assumptions and Methodology for End-Use Forecasting with EPRI-REEPS 2.1

    E-Print Network [OSTI]

    Johnson, F.X.

    2010-01-01T23:59:59.000Z

    Administration. April. EPRI. 1982. Residential End-UseInstitute. EA-2512. July. EPRI. 1990. REEPS 2.0 HVAC ModelInstitute. October 11. EPRI, Electric Power Research

  1. Modeling and Simulation of HVAC Faulty Operations and Performance Degradation due to Maintenance Issues

    SciTech Connect (OSTI)

    Wang, Liping; Hong, Tianzhen

    2013-01-01T23:59:59.000Z

    Almost half of the total energy used in the U.S. buildings is consumed by heating, ventilation and air conditionings (HVAC) according to EIA statistics. Among various driving factors to energy performance of building, operations and maintenance play a significant role. Many researches have been done to look at design efficiencies and operational controls for improving energy performance of buildings, but very few study the impacts of HVAC systems maintenance. Different practices of HVAC system maintenance can result in substantial differences in building energy use. If a piece of HVAC equipment is not well maintained, its performance will degrade. If sensors used for control purpose are not calibrated, not only building energy usage could be dramatically increased, but also mechanical systems may not be able to satisfy indoor thermal comfort. Properly maintained HVAC systems can operate efficiently, improve occupant comfort, and prolong equipment service life. In the paper, maintenance practices for HVAC systems are presented based on literature reviews and discussions with HVAC engineers, building operators, facility managers, and commissioning agents. We categorize the maintenance practices into three levels depending on the maintenance effort and coverage: 1) proactive, performance-monitored maintenance; 2) preventive, scheduled maintenance; and 3) reactive, unplanned or no maintenance. A sampled list of maintenance issues, including cooling tower fouling, boiler/chiller fouling, refrigerant over or under charge, temperature sensor offset, outdoor air damper leakage, outdoor air screen blockage, outdoor air damper stuck at fully open position, and dirty filters are investigated in this study using field survey data and detailed simulation models. The energy impacts of both individual maintenance issue and combined scenarios for an office building with central VAV systems and central plant were evaluated by EnergyPlus simulations using three approaches: 1) direct modeling with EnergyPlus, 2) using the energy management system feature of EnergyPlus, and 3) modifying EnergyPlus source code. The results demonstrated the importance of maintenance for HVAC systems on energy performance of buildings. The research is intended to provide a guideline to help practitioners and building operators to gain the knowledge of maintaining HVAC systems in efficient operations, and prioritize HVAC maintenance work plan. The paper also discusses challenges of modeling building maintenance issues using energy simulation programs.

  2. This paper has been downloaded from the Building and Environmental Thermal Systems Research Group at Oklahoma State University (www.hvac.okstate.edu)

    E-Print Network [OSTI]

    Ghajar, Afshin J.

    at Oklahoma State University (www.hvac.okstate.edu) The correct citation for the paper is: Rees, S.J., J cooling loads is of critical concern to designers of HVAC systems. The work reported here has been carried of the HVAC industry worldwide would be improved if common methods of performing key design calculations were

  3. Cooperative Control of Air Flow for HVAC Systems Shuai Liu1,2, Yushen Long1, Lihua Xie1 and Alexandre M. Bayen3

    E-Print Network [OSTI]

    Cooperative Control of Air Flow for HVAC Systems Shuai Liu1,2, Yushen Long1, Lihua Xie1 for building heating, ven- tilation and air-conditioning (HVAC) systems. The strategy consists in two level and the HVAC system parameters. I. INTRODUCTION In recent years, energy saving and environment protection have

  4. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 51, NO. 5, MAY 2003 945 Propagation Model for the HVAC Duct as a

    E-Print Network [OSTI]

    Stancil, Daniel D.

    for the HVAC Duct as a Communication Channel Pavel V. Nikitin, Member, IEEE, Daniel D. Stancil, Senior Member (HVAC) ducts in buildings are typically hollow metal pipes which can be used as waveguides to carry such a communication system. This paper presents a propagation model for a straight HVAC duct terminated at both ends

  5. High-Speed Internet Access via HVAC Ducts: A New Approach Daniel D. Stancil, Ozan K. Tonguz, Ariton Xhafa, Ahmet Cepni, and Pavel Nikitin

    E-Print Network [OSTI]

    Stancil, Daniel D.

    High-Speed Internet Access via HVAC Ducts: A New Approach Daniel D. Stancil, Ozan K. Tonguz, Ariton conditioning (HVAC) ducts for indoor wireless transmission systems and networks. Mea- surements and system to 100 Mbps should be possible, when HVAC system is used in con- junction with OFDM technology. Keywords

  6. MIPP Plastic Ball electronics upgrade

    SciTech Connect (OSTI)

    Baldin, Boris; /Fermilab

    2009-01-01T23:59:59.000Z

    An upgrade electronics design for Plastic Ball detector is described. The Plastic Ball detector was a part of several experiments in the past and its back portion (proposed to be used in MIPP) consists of 340 photomultipliers equipped with a sandwich scintillator. The scintillator sandwich has fast and slow signal component with decay times 10 ns and 1 {micro}s respectively. The upgraded MIPP experiment will collect up to 12,000 events during each 4 second spill and read them out in {approx}50 seconds between spills. The MIPP data acquisition system will employ deadtime-less concept successfully implemented in Muon Electronics of Dzero experiment at Fermilab. An 8-channel prototype design of the Plastic Ball Front End (PBFE) implementing these requirements is discussed. Details of the schematic design, simulation and prototype test results are discussed.

  7. Procedures to identify Energy Conservation Opportunities applied to HVAC system: example of VSD of chilled water pumps

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Procedures to identify Energy Conservation Opportunities applied to HVAC system: example of VSD among the list of Energy Conservation Opportunities (137) identified in the HARMONAC project [1]. First of HVAC equipment using variable speed drive (VSD) is an Energy Conservation Opportunity (ECO) which can

  8. IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 53, NO. 2, FEBRUARY 2005 335 On the Capacity Limits of HVAC Duct Channel for

    E-Print Network [OSTI]

    Stancil, Daniel D.

    and experimental channel-capacity estimates of heating, ventilation, and air condi- tioning (HVAC) ducts based in indoor wireless networks. Index Terms--Heating, ventilation, and air conditioning (HVAC) systems building is already equipped with a microwave distribution system: the heating, ventilation, and air

  9. Deposition of biological aerosols on HVAC heat exchangers

    SciTech Connect (OSTI)

    Siegel, Jeffrey; Walker, Ian

    2001-09-01T23:59:59.000Z

    Many biologically active materials are transported as bioaerosols 1-10 {micro}m in diameter. These particles can deposit on cooling and heating coils and lead to serious indoor air quality problems. This paper investigates several of the mechanisms that lead to aerosol deposition on fin and tube heat exchangers. A model has been developed that incorporates the effects of several deposition mechanisms, including impaction, Brownian and turbulent diffusion, turbophoresis, thermophoresis, diffusiophoresis, and gravitational settling. The model is applied to a typical range of air velocities that are found in commercial and residential HVAC systems 1 - 6 m/s (200 - 1200 ft/min), particle diameters from 1 - 8 {micro}m, and fin spacings from 3.2 - 7.9 fins/cm (8 - 16 fins/inch or FPI). The results from the model are compared to results from an experimental apparatus that directly measures deposition on a 4.7 fins/cm (12 FPI) coil. The model agrees reasonably well with this measured data and suggests that cooling coils are an important sink for biological aerosols and consequently a potential source of indoor air quality problems.

  10. Application of black-box models to HVAC systems for fault detection

    SciTech Connect (OSTI)

    Peitsman, H.C. [TNO Building and Construction Research, Delft (Netherlands). Dept. of Indoor Environment, Building Physics and Systems; Bakker, V.E. [Univ. of Twente, Enschede (Netherlands). Dept. of Computer Science

    1996-11-01T23:59:59.000Z

    This paper describes the application of black-box models for fault detection and diagnosis (FDD) in heating, ventilating, and air-conditioning (HVAC) systems. In this study, multiple-input/single-output (MISO) ARX models and artificial neural network (ANN) models are used. The ARX models are examined for different processes and subprocesses and compared with each other. Two types of models are established--system models and component models. In the case of system models, the HVAC system as a whole is regarded as a black box instead of as a collection of component models. With the component model type, the components of the HVAC system are regarded as separate black boxes.

  11. Canada's heavy oil, bitumen upgrading activity is growing

    SciTech Connect (OSTI)

    Corbett, R.A.

    1989-06-26T23:59:59.000Z

    Heavy oil and bitumen upgrading activity in Canada is surging with the recent start-up of two new upgraders and with plans to build others. These new upgraders make use of modern hydrocracking technology. Articles in this special report on upgrading focus on Canada's oil and bitumen reserves, the promising technologies that upgrade them, and present details of some of the current upgrader projects. This article covers the following areas: Canada's heavy oils; Upgrading expands; Upgrading technologies; Test results; Regional upgraders; High-quality light product.

  12. Energy Savings Potential and RD&D Opportunities for Commercial Building HVAC Systems

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:RevisedAdvisoryStandard |inHVAC | Department of Energy HVAC EnergyCommercial

  13. Upgrade Boilers with Energy-Efficient Burners

    SciTech Connect (OSTI)

    Not Available

    2006-01-01T23:59:59.000Z

    This revised ITP steam tip sheet on upgrading boilers provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

  14. Jefferson Lab accelerator upgrade completed: Initial operations...

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

    DOE to begin initial operations of the Continuous Electron Beam Accelerator Facility (CEBAF) as part of its ongoing 338 million upgrade. With the approval of Critical...

  15. The Upgraded D0 detector

    SciTech Connect (OSTI)

    Abazov, V.M.; Abbott, B.; Abolins, M.; Acharya, B.S.; Adams, D.L.; Adams, M.; Adams, T.; Agelou, M.; Agram, J.-L.; Ahmed, S.N.; Ahn, S.H.; Ahsan, M.; Alexeev, G.D.; Alkhazov, G.; Alton, A.; Alverson, G.; Alves, G.A.; Anastasoaie, M.; Andeen, T.; Anderson, J.T.; Anderson, S.; /Buenos Aires U. /Rio de Janeiro, CBPF /Sao Paulo, IFT /Alberta U./Simon Fraser U. /York U., Canada /McGill U. /Beijing, Inst. High Energy Phys. /Hefei, CUST /Andes U., Bogota /Charles U. /Prague, Tech. U. /Prague, Inst. Phys. /San Francisco deQuito U. /Clermont-Ferrand U. /LPSC, Grenoble /Marseille, CPPM /Orsay, LAL /Paris U., VI-VII /DAPNIA, Saclay /Strasbourg, IReS; ,

    2005-07-01T23:59:59.000Z

    The D0 experiment enjoyed a very successful data-collection run at the Fermilab Tevatron collider between 1992 and 1996. Since then, the detector has been upgraded to take advantage of improvements to the Tevatron and to enhance its physics capabilities. We describe the new elements of the detector, including the silicon microstrip tracker, central fiber tracker, solenoidal magnet, preshower detectors, forward muon detector, and forward proton detector. The uranium/liquid-argon calorimeters and central muon detector, remaining from Run I, are discussed briefly. We also present the associated electronics, triggering, and data acquisition systems, along with the design and implementation of software specific to D0.

  16. Potential Peak Load Reductions From Residential Energy Efficient Upgrades

    E-Print Network [OSTI]

    Meisegeier, D.; Howes, M.; King, D.; Hall, J.

    2002-01-01T23:59:59.000Z

    the potential peak load reductions from residential energy efficiency upgrades in hot and humid climates. First, a baseline scenario is established. Then, the demand and consumption impacts of individual upgrade measures are assessed. Several of these upgrades...

  17. Analysis Efforts Supporting NSTX Upgrades

    SciTech Connect (OSTI)

    H.Zhang, P. Titus, P. Rogoff, A.Zolfaghari, D. Mangra, M. Smith

    2010-11-29T23:59:59.000Z

    The National Spherical Torus Experiment (NSTX) is a low aspect ratio, spherical torus (ST) configuration device which is located at Princeton Plasma Physics Laboratory (PPPL) This device is presently being updated to enhance its physics by doubling the TF field to 1 Tesla and increasing the plasma current to 2 Mega-amperes. The upgrades include a replacement of the centerstack and addition of a second neutral beam. The upgrade analyses have two missions. The first is to support design of new components, principally the centerstack, the second is to qualify existing NSTX components for higher loads, which will increase by a factor of four. Cost efficiency was a design goal for new equipment qualification, and reanalysis of the existing components. Showing that older components can sustain the increased loads has been a challenging effort in which designs had to be developed that would limit loading on weaker components, and would minimize the extent of modifications needed. Two areas representing this effort have been chosen to describe in more details: analysis of the current distribution in the new TF inner legs, and, second, analysis of the out-of-plane support of the existing TF outer legs.

  18. SND data acquisition system upgrade

    E-Print Network [OSTI]

    A. G. Bogdanchikov; V. P. Druzhinin; A. A. Korol; S. V. Koshuba; A. I. Tekutiev; Yu. V. Usov

    2014-04-02T23:59:59.000Z

    The data acquisition (DAQ) system of the SND detector successfully operated during four data-taking seasons (2010-2013) at the e+e- collider VEPP-2000. Currently the collider is shut down for planned reconstruction, which is expected to increase the VEPP-2000 luminosity and data flow from the SND detector electronics by up to 10 times. Since current DAQ system implementation (electronics and computer part) does not have enough reserve for selection of events in the new environment without compromising quality, there arose the need for the system upgrade. Here we report on the major SND data acquisition system upgrade which includes developing new electronics for digitization and data transfer, complete redesign of the data network, increasing of the DAQ computer farm processing capacity and making the event building process concurrent. These measures will allow us to collect data flow from the most congested detector subsystems in parallel in contrast to the current situation. We would like to discuss also the possibility to implement full software trigger solution in the future.

  19. NSTXpool Computer Upgrade December 9, 2010

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    NSTXpool Computer Upgrade WP #1685 Bill Davis December 9, 2010 #12;Work Scope Upgrade Operating System, Application Software, and Programs that run on NSTX computers using Red Hat Enterprise Linux 3. nstxpool computers + nstxops nstxWindowsPC (Control Room Display Wall) Big Blue cluster for EFIT Selected

  20. Project W-420 stack monitoring system upgrades

    SciTech Connect (OSTI)

    CARPENTER, K.E.

    1999-02-25T23:59:59.000Z

    This project will execute the design, procurement, construction, startup, and turnover activities for upgrades to the stack monitoring system on selected Tank Waste Remediation System (TWRS) ventilation systems. In this plan, the technical, schedule, and cost baselines are identified, and the roles and responsibilities of project participants are defined for managing the Stack Monitoring System Upgrades, Project W-420.

  1. JET neutral beam power upgrade Introduction

    E-Print Network [OSTI]

    JET neutral beam power upgrade Introduction A tokamak is a complex assembly, a system of systems the challenging requirements that fusion demands. The neutral beam heating system and its upgrade for the JET systems) are the main plasma heating scheme on fusion devices such as JET and ITER. The JET neutral beam

  2. Automated Testing of HVAC Systems for Commissioning Tim Salsbury and Rick Diamond

    E-Print Network [OSTI]

    Diamond, Richard

    carrying out a proof of operation. In large modern buildings, the energy management and control system to exercise systems while under closed-loop control. The test signals are in the form of setpoint changesAutomated Testing of HVAC Systems for Commissioning Tim Salsbury and Rick Diamond Lawrence Berkeley

  3. Re-Commissioning of the CAMET HVAC System: A Successful Case Study

    E-Print Network [OSTI]

    Andre, P.; Cuevas, C.; Lacote, P.; Lebrun, J.

    2003-01-01T23:59:59.000Z

    Commissioning is a unique opportunity, for all partners concerned, to learn a lot about the real behavior of a HVAC system. It has to start from comfort and health requirements in occupancy zones, and going back to the plant through the whole air...

  4. A CONTROLLER FOR HVAC SYSTEMS WITH FAULT DETECTION CAPABILITIES BASED ON SIMULATION MODELS

    E-Print Network [OSTI]

    thresholds are exceeded. The paper presents results from testing the controller with a dual-duct air-handling unit. INTRODUCTION Heating, ventilating, and air-conditioning (HVAC) systems are typically controlled energy consumption, and increased wear on controlled elements, such as actuators, valves, and dampers

  5. Modeling Building Thermal Response to HVAC Virginia Smith, Tamim Sookoor, and Kamin Whitehouse

    E-Print Network [OSTI]

    Whitehouse, Kamin

    by the occupants. Much of this wasted energy is used to heat or cool unoccupied spaces during long periods when-15% waste due to unoccupied spaces be- ing conditioned. Our goal is to minimize this waste by retrofitting the influence of the HVAC system. We present a technique for dynamically estimating the heat load due to weather

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

    E-Print Network [OSTI]

    Meckler, G.

    1989-01-01T23:59:59.000Z

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

  7. VOL. 6, NO. 1 HVAC&R RESEARCH JANUARY 2000 Qualitative Comparison of North American and

    E-Print Network [OSTI]

    Calculation of design cooling and heating loads is an essential task in the design of HVAC systems and has societies publish methods for calculating design cooling and heating load calculations in their handbooks.K. Cooling Load Calculation Methods Simon J. Rees, Ph.D Jeffrey D. Spitler, Ph.D., P.E. Member ASHRAE Member

  8. Analysis of the HVAC System at the Willow Branch Intermediate School

    E-Print Network [OSTI]

    Wei, G.

    1997-01-01T23:59:59.000Z

    was built in 1983. It was recently expanded in 1994 and renamed the Willow Branch Intermediate School. It now has a total floor area of 88,617 square feet. The system under investigation is a water-loop heat pump system which provides the HVAC needs...

  9. Fouling of HVAC Fin and Tube Heat Exchangers Jeffrey Siegel and Van P. Carey

    E-Print Network [OSTI]

    , particularly air conditioner evaporators, is especially important as space cooling in buildings is an important-entrained in the airflow. Before discussing the details of particle deposition on air conditioner evaporators in residential, commercial and industrial HVAC applications. Invariably, indoor and outdoor air contaminants foul

  10. Federal Finance Facilities Available for Energy Efficiency Upgrades...

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

    Federal Finance Facilities Available for Energy Efficiency Upgrades and Clean Energy Deployment Federal Finance Facilities Available for Energy Efficiency Upgrades and Clean Energy...

  11. ENERGY STAR Webinar: Financing Energy Efficient Upgrades with...

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

    ENERGY STAR Webinar: Financing Energy Efficient Upgrades with ENERGY STAR ENERGY STAR Webinar: Financing Energy Efficient Upgrades with ENERGY STAR October 21, 2014 2:00PM to...

  12. EECBG Success Story: Energy Efficiency Upgrades Part of Winning...

    Office of Environmental Management (EM)

    Energy Efficiency Upgrades Part of Winning Formula for Oregon School District EECBG Success Story: Energy Efficiency Upgrades Part of Winning Formula for Oregon School District...

  13. EIS-0484: Montana-to-Washington Transmission System Upgrade Project...

    Energy Savers [EERE]

    4: Montana-to-Washington Transmission System Upgrade Project in Washington, Idaho, and Montana EIS-0484: Montana-to-Washington Transmission System Upgrade Project in Washington,...

  14. Sandia National Laboratories: Solar Test Facility Upgrades Complete...

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

    Test Facility Upgrades Complete, Leading to Better Sandia Capabilities to Support Power Industry Solar Test Facility Upgrades Complete, Leading to Better Sandia Capabilities to...

  15. Shared Space vs. In-Unit Upgrades in Multifamily Buildings |...

    Energy Savers [EERE]

    Shared Space vs. In-Unit Upgrades in Multifamily Buildings Shared Space vs. In-Unit Upgrades in Multifamily Buildings Better Buildings Neighborhood Program Multifamily Peer...

  16. Beam intensity upgrade at Fermilab

    SciTech Connect (OSTI)

    Marchionni, A.; /Fermilab

    2006-07-01T23:59:59.000Z

    The performance of the Fermilab proton accelerator complex is reviewed. The coming into operation of the NuMI neutrino line and the implementation of slip-stacking to increase the anti-proton production rate has pushed the total beam intensity in the Main Injector up to {approx} 3 x 10{sup 13} protons/pulse. A maximum beam power of 270 kW has been delivered on the NuMI target during the first year of operation. A plan is in place to increase it to 350 kW, in parallel with the operation of the Collider program. As more machines of the Fermilab complex become available with the termination of the Collider operation, a set of upgrades are being planned to reach first 700 kW and then 1.2 MW by reducing the Main Injector cycle time and by implementing proton stacking.

  17. Energy Efficiency Through Lighting Upgrades

    SciTech Connect (OSTI)

    Kara Berst; Maria Howeth

    2010-06-01T23:59:59.000Z

    Lighting upgrades including neon to LED, incandescent to CFL's and T-12 to T-8 and T-5's were completed through this grant. A total of 16 Chickasaw nation facilities decreased their carbon footprint because of these grant funds. Calculations used were based on comparing the energy usage from the previous year�¹����s average and the current energy usage. For facilities without a full year's set of energy bills, the month after installation was compared to the same month from the previous year. Overall, the effect the lighting change-outs had for the gaming centers and casinos far exceeded expectations. For the Madill Gaming Center; both an interior and exterior upgrade was performed which resulted in a 31% decrease in energy consumption. This same reduction was seen in every facility that participated in the grant. Just by simply changing out light bulbs to newer energy efficient equivalents, a decrease in energy usage can be achieved and this was validated by the return on investment seen at Chickasaw Nation facilities. Along with the technical project tasks were awareness sessions presented at Chickasaw Head Starts. The positive message of environmental stewardship was passed down to head start students and passed along to Chickasaw employees. Excitement was created in those that learned what they could do to help reduce their energy bills and many followed through and took the idea home. For a fairy low cost, the general public can also use this technique to lower their energy consumption both at home and at work. Although the idea behind the project was somewhat simple, true benefits have been gained through environmental awareness and reductions of energy costs.

  18. Field Evaluation of Desiccant-Integrated HVAC Systems: A Review of Case Studies in Multiple Commercial/Institutional Building Types

    E-Print Network [OSTI]

    Yborra, S. C.

    1998-01-01T23:59:59.000Z

    An independent field research effort co-funded by the Gas Research Institute and The U.S. Department of Energy (DOE) Oak Ridge National Laboratory is documenting the performance and energy usage characteristics of active desiccant-integrated HVAC...

  19. Integrated Ice Storage/Sprinkler HVAC System Sharply Cuts Energy Costs and Air-Distribution First Costs

    E-Print Network [OSTI]

    Meckler, G.

    1986-01-01T23:59:59.000Z

    Integrated ice thermal storage/sprinkler HVAC systems developed and applied by the author in several commercial applications shift a major portion of electric utility demand to cheaper off-peak hours, while also reducing significantly the first cost...

  20. Detection and diagnosis of faults and energy monitoring of HVAC systems with least-intrusive power analysis

    E-Print Network [OSTI]

    Luo, Dong, 1966-

    2001-01-01T23:59:59.000Z

    Faults indicate degradation or sudden failure of equipment in a system. Widely existing in heating, ventilating, and air conditioning (HVAC) systems, faults always lead to inefficient energy consumption, undesirable indoor ...

  1. Software-as-a-Service Optimised Scheduling of a Solar-Assisted HVAC System with Thermal Storage

    E-Print Network [OSTI]

    Mammoli, Andrea

    2014-01-01T23:59:59.000Z

    performance of a solar-thermal- assisted hvac system. Energyfor rows of fixed solar thermal collectors using flatassisted by a 232 m solar thermal array providing heat to a

  2. 1736 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 51, NO. 10, OCTOBER 2003 Impulse Response of the HVAC Duct as a

    E-Print Network [OSTI]

    Hochberg, Michael

    Member, IEEE, and Dagfin Brodtkorb, Member, IEEE Abstract--Heating, ventilation, and air conditioning-area network (LAN). I. INTRODUCTION THE heating, ventilation, and air conditioning (HVAC) duct system in most

  3. Optimized Fan Control In Variable Air Volume HVAC Systems Using Static Pressure Resets: Strategy Selection and Savings Analysis

    E-Print Network [OSTI]

    Kimla, John

    2010-07-14T23:59:59.000Z

    The potential of static pressure reset (SPR) control to save fan energy in variable air volume HVAC systems has been well documented. Current research has focused on the creation of reset strategies depending on specific system features...

  4. LHCb PID Upgrade Technical Design Report

    E-Print Network [OSTI]

    LHCb Collaboration

    2013-01-01T23:59:59.000Z

    The LHCb upgrade will take place in the second long shutdown of the LHC, currently scheduled to begin in 2018. The upgrade will enable the experiment to run at luminosities of $2 \\times 10^{33}cm^{-2}s^{-1}$ and will read out data at a rate of 40MHz into a exible software-based trigger. All sub-detectors of LHCb will be re-designed to comply with these new operating conditions. This Technical Design Report presents the upgrade plans of the Ring Imaging Cherenkov (RICH) system, the calorimeter system and the muon system, which together provide the particle identication capabilities of the experiment.

  5. Commissioning Results of the Upgraded Neutralized Drift Compression Experiment

    E-Print Network [OSTI]

    Lidia, S.M.

    2009-01-01T23:59:59.000Z

    COMMISSIONING RESULTS OF THE UPGRADED NEUTRALIZED DRIFTexperiments. We report on commissioning results of the

  6. Nb3Sn Quadrupoles Designs For The LHC Upgrades

    E-Print Network [OSTI]

    Felice, Helene

    2010-01-01T23:59:59.000Z

    progress in order to incorporate all the accelerator quality features required for a LHC upgrade (cooling

  7. Advanced Photon Source Upgrade Project - Energy

    ScienceCinema (OSTI)

    Gibson, Murray; Chamberlain, Jeff; Young, Linda

    2013-04-19T23:59:59.000Z

    An upgrade to the Advanced Photon Source (announced by DOE - http://go.usa.gov/ivZ) will help scientists better understand complex environments such as in catalytic reactions.

  8. Economic Options for Upgrading Waste Heat 

    E-Print Network [OSTI]

    Erickson, D. C.

    1983-01-01T23:59:59.000Z

    There are at least six major types of equipment that upgrade waste heat: (1) thermocompressor; (2) electric drive compressor heat pump; (3) absorption heat pump; (4) high temperature heat powered compressor heat pump; (5) reverse absorption heat...

  9. Economic Options for Upgrading Waste Heat

    E-Print Network [OSTI]

    Erickson, D. C.

    1983-01-01T23:59:59.000Z

    There are at least six major types of equipment that upgrade waste heat: (1) thermocompressor; (2) electric drive compressor heat pump; (3) absorption heat pump; (4) high temperature heat powered compressor heat pump; (5) reverse absorption heat...

  10. RECOVERY ACT: TAPOCO PROJECT: CHEOAH UPGRADE

    SciTech Connect (OSTI)

    Tran, Paul; 740, 293 Highway; Baden, NC 28009

    2013-02-28T23:59:59.000Z

    Under Funding Opportunity Announcement Number: DE-FOA-0000120, Recovery Act: Hydroelectric Facility Modernization, Alcoa Power Generating Inc. (APGI), a fully owned subsidiary of Alcoa Inc., implemented major upgrades at its Cheoah hydroelectric facility near Robbinsville, North Carolina.

  11. Advanced Photon Source Upgrade Project - Materials

    ScienceCinema (OSTI)

    Gibbson, Murray;

    2013-04-19T23:59:59.000Z

    An upgrade to Advanced Photon Source announced by DOE - http://go.usa.gov/ivZ -- will help scientists break through bottlenecks in materials design in order to develop materials with desirable functions.

  12. ATLAS upgrade June09_v3

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

    of the upgrade will replace the front end of the ATLAS Positive Ion Injector linac (PII) by a new bunching system, a Radio-Frequency Quadrupole (RFQ) and a new cryostat of...

  13. Upgrade Your Refinery for Energy Conservation

    E-Print Network [OSTI]

    Johnnie, D. H., Jr.; Klooster, H. J.

    1983-01-01T23:59:59.000Z

    Upgrading existing refineries for efficient energy utilization imposes strict restraints upon design engineers. Present and future production requirements must be defined. Reliable operating data must be obtained from historical records and test...

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

    E-Print Network [OSTI]

    2014-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

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

  17. Proposal to negotiate an amendment to an existing contract for the supply and installation of an HVAC system for the HIE-ISOLDE infrastructure

    E-Print Network [OSTI]

    2014-01-01T23:59:59.000Z

    Proposal to negotiate an amendment to an existing contract for the supply and installation of an HVAC system for the HIE-ISOLDE infrastructure

  18. Comparisons of HVAC Simulations between EnergyPlus and DOE-2.2 for Data Centers

    SciTech Connect (OSTI)

    Hong, Tianzhen; Sartor, Dale; Mathew, Paul; Yazdanian, Mehry

    2008-08-13T23:59:59.000Z

    This paper compares HVAC simulations between EnergyPlus and DOE-2.2 for data centers. The HVAC systems studied in the paper are packaged direct expansion air-cooled single zone systems with and without air economizer. Four climate zones are chosen for the study - San Francisco, Miami, Chicago, and Phoenix. EnergyPlus version 2.1 and DOE-2.2 version 45 are used in the annual energy simulations. The annual cooling electric consumption calculated by EnergyPlus and DOE-2.2 are reasonablely matched within a range of -0.4percent to 8.6percent. The paper also discusses sources of differences beween EnergyPlus and DOE-2.2 runs including cooling coil algorithm, performance curves, and important energy model inputs.

  19. D0 Silicon Upgrade: Upgrade Piping Loads on Cleanroom Roof

    SciTech Connect (OSTI)

    Sakla, Steve; /Fermilab

    1995-08-28T23:59:59.000Z

    The proposed piping layout for the DO upgrade will run along the south wall of DAB. The cryogenic service pipe runs above the upper and lower cleanroom roofs and will need to be supported by the roofs beams. Calculations were done to determine the stresses in the I-beams created by the existing and additional loads due to the upgrade. Refer to drawing no. 3823.115-ME-317283 for drawings of the piping layout. Figure 1 shows the 'plan view' portion of this drawing. The weight of the individual lines were calculated in figure 2 assuming a pipe density of O.28 lbm/in{sup 3} for stainless steel (0.12% C) and a fluid density (assuming LN2 at 1 atm) of 0.03 lbm/in{sup 3}. The weights of the corrugated steel flooring, assembly hall feed cans, support beams, and roof hatch were also included in the analysis. These loads are calculated on pgs. 5-6. A floor load of 50 lbf/ft{sup 2} was also added in order to maintain the existing floor load limit in addition to the added piping loads. Measurements of the dimensions of the I-beams determined that the nominal sizes of the beams were W8 x 21 for the lower roof and W14 x 26 for the upper roof. Pipe lengths were determined from the drawing for each of the lines on pgs. 1-2 of the calculations (refer to all piping by line numbers according to figure 2). A total weight was calculated for lines 3-9 along the south wall and lines 1-2 running along the north wall of the lower cleanroom roof. To simplify the calculations these weights were assumed to be evenly distributed on the 5 I-beam supports of the lower cleanroom roof 2.5 feet in from the south wall. The stress analysis was done using FrameMac, a 2-D finite element program for the Macintosh. Beam 3 was not included in the analysis because it is structurally equivalent to beam 1. The program outputted maximum values for shear stress, bending stress, shear force, and moments in each of the beams analyzed. These values were then compared to the allowable stresses as per the specifications and codes stated in the AISC: Manual of Steel Construction. The stresses on the roof beams needed to be determined in a number of different places. The first was in the beam itself which included the flange and web sections. The second place was at the ends of the beams where the flanges were removed to make the perpendicular connections to the other beams on the lower roof. The final point was the framed beam connection which included the bolt analysis. FrameMac calculated stresses only for the beams which included the sections where the flanges were removed to make the end connections. To analyze the connections, the allowable bending and shear stresses were solved for allowable shear and moments. This was done because FrameMac does not have the capability to analyze the dimensions for the bolts and angles used in the connections were known and the program outputted values for reaction forces and moments at the ends of the beams. Multiplying the allowable shear stress for the bolts and angle connections by their respective areas gave the allowable shear force. The allowable moment for the angle connection was calculated by multiplying the section modulus of the angle by the allowable bending stress. These allowable loads are calculated on pgs. 7-8. The allowable and maximum calculated stresses by FrameMac are summarized in a table. In conclusion, the cleanroom roofs will be able to safely support the weight of the upgrade cryogenic piping, feed cans, corrugated flooring and a 50 lbf/ft{sup 2} floor load with the addition of diagonal braces at the ends of beams 1,2,3,4, and 8. The location and size of these diagonal braces are shown in fig. 4. Also, the piping supports and feed cans will all need to be placed directly above the I-beam supports. These supports will consist of unistrut structures that will be detailed and specified separate to this analysis. The output and input data from FrameMac and the drawings used in the analysis follow the calculation pages.

  20. Application of Various HVAC Simulation Programs and Visual Tools to Commissioning 

    E-Print Network [OSTI]

    Zheng, M.; Pan, S.

    2007-01-01T23:59:59.000Z

    , aperture size etc., Calculate PAL and BEE Calculate PAL and BEE with BECS,CASBEE Buil- ding Plan/ Design Cx Optimize building location, envelop structure, aperture size, and aperture position etc. Simulate heat load and natural room temperature yearly... peak heat load by using MicroPeak, confirm airflow, thermal environment by CFD Preliminary design Cx Optimize HVAC, heat source, equipment capacity, number division of equipment Calculate hourly heat load through the year in detail Normal...

  1. Comparative guide to emerging diagnostic tools for large commercial HVAC systems

    SciTech Connect (OSTI)

    Friedman, Hannah; Piette, Mary Ann

    2001-05-01T23:59:59.000Z

    This guide compares emerging diagnostic software tools that aid detection and diagnosis of operational problems for large HVAC systems. We have evaluated six tools for use with energy management control system (EMCS) or other monitoring data. The diagnostic tools summarize relevant performance metrics, display plots for manual analysis, and perform automated diagnostic procedures. Our comparative analysis presents nine summary tables with supporting explanatory text and includes sample diagnostic screens for each tool.

  2. Life Cycle cost Analysis of Waste Heat Operated Absorption Cooling Systems for Building HVAC Applications

    E-Print Network [OSTI]

    Saravanan, R.; Murugavel, V.

    2010-01-01T23:59:59.000Z

    effect from CO2 emission resulting from the combustion of fossil fuels in utility power plants and the use of chlorofluorocarbon refrigerants, which is currently thought to affect depletion of the ozone layer. The ban on fluorocarbon fluids has been...LIFE CYCLE COST ANALYSIS OF WASTE HEAT OPERATED ABSORPTION COOLING SYSTEMS FOR BUILDING HVAC APPLICATIONS V. Murugavel and R. Saravanan Refrigeration and Air conditioning Laboratory Department of Mechanical Engineering, Anna University...

  3. IPNS upgrade: A feasibility study

    SciTech Connect (OSTI)

    NONE

    1995-04-01T23:59:59.000Z

    Many of Argonne National Laboratory`s (ANL`s) scientific staff members were very active in R&D work related to accelerator-based spoliation sources in the 1970s and early 1980s. In 1984, the Seitz/Eastman Panel of the National Academy of Sciences reviewed U.S. materials science research facilities. One of the recommendations of this panel was that the United States build a reactor-based steady-state source, the Advanced Neutron Source (ANS), at Oak Ridge National Laboratory. Subsequently, R&D activities related to the design of an accelerator-based source assumed a lower priority. The resumption of pulsed-source studies in this country started simultaneously with design activities in Europe aimed at the European Spallation Source (ESS). The European Community funded a workshop in September 1991 to define the parameters of the ESS. Participants in this workshop included both accelerator builders and neutron source users. A consortium of European countries has proposed to build a 5-MW pulsed source, and a feasibility study is currently under way. Soon after the birth of the ESS, a small group at ANL set about bringing themselves up to date on pulsed-source information since 1984 and studied the feasibility of upgrading ANL`s Intense Pulsed Neutron Source (IPNS) to 1 MW by means of a rapidly cycling synchrotron that could be housed, along with its support facilities, in existing buildings. In early 1993, the Kohn panel recommended that (1) design and construction of the ANS should be completed according to the proposed project schedule and (2) development of competitive proposals for cost-effective design and construction of a 1-MW pulsed spallation source should be authorized immediately.

  4. Climate balance of biogas upgrading systems

    SciTech Connect (OSTI)

    Pertl, A., E-mail: andreas.pertl@boku.ac.a [Institute of Waste Management, Department of Water, Atmosphere and Environment, University of Natural Resources and Applied Life Sciences, Vienna, Muthgasse 107, A-1190 Wien (Austria); Mostbauer, P.; Obersteiner, G. [Institute of Waste Management, Department of Water, Atmosphere and Environment, University of Natural Resources and Applied Life Sciences, Vienna, Muthgasse 107, A-1190 Wien (Austria)

    2010-01-15T23:59:59.000Z

    One of the numerous applications of renewable energy is represented by the use of upgraded biogas where needed by feeding into the gas grid. The aim of the present study was to identify an upgrading scenario featuring minimum overall GHG emissions. The study was based on a life-cycle approach taking into account also GHG emissions resulting from plant cultivation to the process of energy conversion. For anaerobic digestion two substrates have been taken into account: (1) agricultural resources and (2) municipal organic waste. The study provides results for four different upgrading technologies including the BABIU (Bottom Ash for Biogas Upgrading) method. As the transport of bottom ash is a critical factor implicated in the BABIU-method, different transport distances and means of conveyance (lorry, train) have been considered. Furthermore, aspects including biogas compression and energy conversion in a combined heat and power plant were assessed. GHG emissions from a conventional energy supply system (natural gas) have been estimated as reference scenario. The main findings obtained underlined how the overall reduction of GHG emissions may be rather limited, for example for an agricultural context in which PSA-scenarios emit only 10% less greenhouse gases than the reference scenario. The BABIU-method constitutes an efficient upgrading method capable of attaining a high reduction of GHG emission by sequestration of CO{sub 2}.

  5. MAVIS III -- A Windows 95/NT Upgrade

    SciTech Connect (OSTI)

    Hardwick, M.F. [Sandia National Labs., Livermore, CA (United States). GTS Engineering Dept.

    1997-12-01T23:59:59.000Z

    MAVIS (Modeling and Analysis of Explosive Valve Interactions) is a computer program that simulates operation of explosively actuated valve. MAVIS was originally written in Fortran in the mid 1970`s and was primarily run on the Sandia Vax computers in use through the early 1990`s. During the mid to late 1980`s MAVIS was upgraded to include the effects of plastic deformation and it became MAVIS II. When the Vax computers were retired, the Gas Transfer System (GTS) Development Department ported the code to the Macintosh and PC platforms, where it ran as a simple console application. All graphical output was lost during these ports. GTS code developers recently completed an upgrade that provides a Windows 95/NT MAVIS application and restores all of the original graphical output. This upgrade is called MAVIS III version 1.0. This report serves both as a user`s manual for MAVIS III v 1.0 and as a general software development reference.

  6. Bitumen and heavy oil upgrading in Canada

    SciTech Connect (OSTI)

    Chrones, J.

    1988-06-01T23:59:59.000Z

    A review is presented of the heavy oil upgrading industry in Canada. Up to now it has been based on the processing of bitumen extracted from oil sands mining operations at two sites, to produce a residue-free, low sulfur, synthetic crude. Carbon rejection has been the prime process technology with delayed coking being used by Suncor and FLUID COKING at Syncrude. Alternative processes for recovering greater amounts of synthetic crude are examined. These include a variety of hydrogen addition processes and combinations which produce pipelineable materials requiring further processing in downstream refineries with expanded capabilities. The Newgrade Energy Inc. upgrader, now under construction in Regina, will use fixed-bed, catalytic, atmospheric-residue, hydrogen processing. Two additional products, also based on hydrogenation, will use ebullated bed catalyst systems: the expansion of Syncrude, now underway, is using the LC Fining Process whereas the announced Husky Bi-Provincial upgrader is based on H-Oil.

  7. Bitumen and heavy oil upgrading in Canada

    SciTech Connect (OSTI)

    Chrones, J. (Chrones Engineering Consultants Inc., 111 Lord Seaton Road, Willowdale, Ontario (CA)); Germain, R.R. (Alberta Oil Sands Technology and Research Authority, Edmonton, AB (Canada))

    1989-01-01T23:59:59.000Z

    A review is presented of the heavy oil upgrading industry in Canada. Up to now it has been based on the processing of bitumen extracted from oil sands mining operations at two sites, to produce a residue-free, low sulphur, synthetic crude. Carbon rejection has been the prime process technology with delayed coking being used by Suncor and FLUID COKING at Syncrude. Alternative processes for recovering greater amounts of synthetic crude are examined. These include a variety of hydrogen addition processes and combinations which produce pipelineable materials requiring further processing in downstream refineries with expanded capabilities. The Newgrade Energy Inc. upgrader now under construction in Regina, will use fixed-bed, catalytic, atmospheric-residue, hydrogen processing. Two additional projects, also based on hydrogenation, will use ebullated bed catalyst systems; the expansion of Syncrude, now underway, is using the LC Fining Process whereas the announced Husky Bi-Provincial upgrader is based on H-Oil.

  8. Upgrading : an alternative approach towards housing reform in China

    E-Print Network [OSTI]

    He, Fang, 1956-

    1989-01-01T23:59:59.000Z

    The thesis is a study on urban housing upgrading in China. The main objective is to look at upgrading, which has been widely used in many developing countries, as an alternative approach to solving the existing urban housing ...

  9. Idaho: Nez Perce Tribe Energy-Efficient Facilities Upgrade |...

    Energy Savers [EERE]

    Idaho: Nez Perce Tribe Energy-Efficient Facilities Upgrade Idaho: Nez Perce Tribe Energy-Efficient Facilities Upgrade November 8, 2013 - 12:00am Addthis Utilizing 67,000 of EERE's...

  10. Jefferson Lab's upgraded Free-Electron Laser produces first ligh...

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

    the Navy's goals and expectations and we expect no less from the upgraded FEL." The Free-Electron Laser upgrade project is funded by the Department of Defense's Office of...

  11. Unique Solar Thermal Laboratory Gets an Upgrade | Department...

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

    Unique Solar Thermal Laboratory Gets an Upgrade Unique Solar Thermal Laboratory Gets an Upgrade September 10, 2010 - 2:54pm Addthis This power tower is part of the...

  12. Automatic Software Upgrades for Distributed Systems (PhD thesis)

    E-Print Network [OSTI]

    Ajmani, Sameer

    2005-10-06T23:59:59.000Z

    Upgrading the software of long-lived, highly-available distributedsystems is difficult. It is not possible to upgrade all the nodes in asystem at once, since some nodes may be unavailable and halting thesystem for an ...

  13. Heavy Oil Upgrading from Electron Beam (E-Beam) Irradiation 

    E-Print Network [OSTI]

    Yang, Daegil

    2011-02-22T23:59:59.000Z

    hydrocarbons. Second, we studied the energy transfer mechanism of E-Beam upgrading to optimize the process. Third, we conducted a preliminary economic analysis based on energy consumption and compared the economics of E-Beam upgrading with conventional...

  14. Advanced Photon Source Upgrade —Creating a Better Quality of Life

    SciTech Connect (OSTI)

    Linda Young

    2012-11-05T23:59:59.000Z

    The upgrade will enable ultrafast X-ray pulses that could point the way to more efficient electronics and vehicles.

  15. Investment and Upgrade in Distributed Generation under Uncertainty

    E-Print Network [OSTI]

    Siddiqui, Afzal

    2008-01-01T23:59:59.000Z

    utility tari?s, the electricity price may be revised only Investment and Upgrade in Distributed Generation

  16. The Jefferson Lab 12 GeV Upgrade

    E-Print Network [OSTI]

    McKeown, R D

    2010-01-01T23:59:59.000Z

    Construction of the 12 GeV upgrade to the Continuous Electron Beam Accelerator Facility (CEBAF) at the Thomas Jefferson National Accelerator Facility is presently underway. This upgrade includes doubling the energy of the electron beam to 12 GeV, the addition of a new fourth experimental hall, and the construction of upgraded detector hardware. An overview of this upgrade project is presented, along with highlights of the anticipated experimental program.

  17. The Jefferson Lab 12 GeV Upgrade

    E-Print Network [OSTI]

    R. D. McKeown

    2010-09-22T23:59:59.000Z

    Construction of the 12 GeV upgrade to the Continuous Electron Beam Accelerator Facility (CEBAF) at the Thomas Jefferson National Accelerator Facility is presently underway. This upgrade includes doubling the energy of the electron beam to 12 GeV, the addition of a new fourth experimental hall, and the construction of upgraded detector hardware. An overview of this upgrade project is presented, along with highlights of the anticipated experimental program.

  18. The JLAB 12 GeV Energy Upgrade of CEBAF

    SciTech Connect (OSTI)

    Harwood, Leigh H. [JLAB

    2013-12-01T23:59:59.000Z

    This presentation should describe the progress of the 12GeV Upgrade of CEBAF at Jefferson Lab. The status of the upgrade should be presented as well as details on the construction, procurement, installation and commissioning of the magnet and SRF components of the upgrade.

  19. Guidelines for Home Energy Upgrade Professionals: Standard Work Specifications for Multifamily Energy Upgrades (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-08-01T23:59:59.000Z

    This fact sheet provides essential information about the 2011 publication of the Workforce Guidelines for Multifamily Home Energy Upgrades, including their origin, their development with the help of industry leaders to create the standard work specifications for retrofit work.

  20. Energy Savings Potential of Flexible and Adaptive HVAC Distribution Systems for Office Buildings

    SciTech Connect (OSTI)

    Loftness, Vivian; Brahme, Rohini; Mondazzi, Michelle; Vineyard, Edward; MacDonald, Michael

    2002-06-01T23:59:59.000Z

    It has been understood by architects and engineers that office buildings with easily re-configurable space and flexible mechanical and electrical systems are able to provide comfort that increases worker productivity while using less energy. Raised floors are an example of how fresh air, thermal conditioning, lighting needs, and network access can be delivered in a flexible manner that is not ''embedded'' within the structure. What are not yet documented is how well these systems perform and how much energy they can save. This area is being investigated in phased projects of the 21st Century Research Program of the Air-conditioning and Refrigeration Technology Institute. For the initial project, research teams at the Center for Building Performance and Diagnostics, Pittsburgh, Pennsylvania, and Oak Ridge National Laboratory, Oak Ridge, Tennessee, documented the diversity, performance, and incidence of flexible and adaptive HVAC systems. Information was gathered worldwide from journal and conference articles, case studies, manufactured products and assemblies, and interviews with design professionals. Their report thoroughly describes the variety of system types along with the various design alternatives observed for plenums, diffusers, individual control, and system integration. Many of the systems are illustrated in the report and the authors provide quantitative and qualitative comparisons. Among conclusions regarding key design issues, and barriers to widespread adoption, the authors state that flexible and adaptive HVAC systems, such as underfloor air, perform as well if not better than ceiling-based systems. Leading engineers have become active proponents after their first experience, which is resulting in these flexible and adaptive HVAC systems approaching 10 percent of the new construction market. To encourage adoption of this technology that improves thermal comfort and indoor air quality, follow-on work is required to further document performance. Architects, professional engineers, and commercial real estate developers will benefit from the availability of information that quantifies energy savings, first cost construction differences, and additional operating costs created when office space must be reconfigured to accommodate new tenants.

  1. The Effect of Optimal Tuning of the Heating/Cooling Curve in AHU of HVAC System in Real Practice

    E-Print Network [OSTI]

    2004-01-01T23:59:59.000Z

    Paper 81, ICEBO 2004 TNO Bouw, The Netherlands Page: 1 of 12 THE EFFECT OF OPTIMAL TUNING OF THE HEATING-/ COOLING CURVE IN AHU OF HVAC SYSTEM IN REAL PRACTISE P.A. (Bert) Elkhuizen(1), J.E. (Jan Ewout) Scholten(1), H.C. (Henk) Peitsman(1... to the settings of the heating/ cooling curve in the central Air Handling Unit?s (AHU?s) of HVAC systems without loss of comfort. In most cases the number of complaints will also be reduced. The method can be used in both new and existing buildings...

  2. COMPARATIVE STUDY AMONG HYBRID GROUND SOURCE HEAT PUMP SYSTEM, COMPLETE GROUND SOURCE HEAT PUMP AND CONVENTIONAL HVAC SYSTEM

    SciTech Connect (OSTI)

    Jiang Zhu; Yong X. Tao

    2011-11-01T23:59:59.000Z

    In this paper, a hotel with hybrid geothermal heat pump system (HyGSHP) in the Pensacola is selected and simulated by the transient simulation software package TRNSYS [1]. To verify the simulation results, the validations are conducted by using the monthly average entering water temperature, monthly facility consumption data, and etc. And three types of HVAC systems are compared based on the same building model and HVAC system capacity. The results are presented to show the advantages and disadvantages of HyGSHP compared with the other two systems in terms of energy consumptions, life cycle cost analysis.

  3. The Effect of Optimal Tuning of the Heating/Cooling Curve in AHU of HVAC System in Real Practice 

    E-Print Network [OSTI]

    2004-01-01T23:59:59.000Z

    Paper 81, ICEBO 2004 TNO Bouw, The Netherlands Page: 1 of 12 THE EFFECT OF OPTIMAL TUNING OF THE HEATING-/ COOLING CURVE IN AHU OF HVAC SYSTEM IN REAL PRACTISE P.A. (Bert) Elkhuizen(1), J.E. (Jan Ewout) Scholten(1), H.C. (Henk) Peitsman(1... to the settings of the heating/ cooling curve in the central Air Handling Unit?s (AHU?s) of HVAC systems without loss of comfort. In most cases the number of complaints will also be reduced. The method can be used in both new and existing buildings...

  4. Work Authorization Document NSTX Upgrade Project

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    Earned value cost (BCWP) m Bg o %CPlanned value cost (BCWS) NSTX Upgrade Project Subtotal 888 03MAY10A 03: Period of Performance: $949 Control Account Manager: Revision #: Revision Date: July-11 Authorized Work Budget: Labik Approvals Signature Date NSTX-U Project Manager R. Strykowsky 4- WBS Dictionary sheet

  5. Work Authorization Document NSTX Upgrade Project

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    Earned value cost (BCWP) m Bg o %CPlanned value cost (BCWS) NSTX Upgrade Project Subtotal 500 01OCT12 01: Period of Performance: $1,174 Control Account Manager: Revision #: Revision Date: July-11 Authorized Work 2014 Authorized Budget: Perry Functional Manager L. Dudek Approvals Signature Date NSTX-U Project

  6. Work Authorization Document NSTX Upgrade Project

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    Cost n n % PPCTe B Earned value cost (BCWP) m Bg o %CPlanned value cost (BCWS) NSTX Upgrade Project: Period of Performance: $251 Control Account Manager: Revision #: Revision Date: July-11 Authorized Work Description: Attachments: ECP# Implement Date Prior Budget New Budget Name Control Account Manager Titus

  7. Work Authorization Document NSTX Upgrade Project

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    Cost n n % PPCTe B Earned value cost (BCWP) m Bg o %CPlanned value cost (BCWS) NSTX Upgrade Project: Period of Performance: $4,516 Control Account Manager: Revision #: Revision Date: July-11 Authorized Work Description: Attachments: ECP# Implement Date Prior Budget New Budget Name Control Account Manager Denault

  8. Work Authorization Document NSTX Upgrade Project

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    Earned value cost (BCWP) m Bg o %CPlanned value cost (BCWS) NSTX Upgrade Project Subtotal 1,401 23FEB09A: Period of Performance: $2,984 Control Account Manager: Revision #: Revision Date: July-11 Authorized Work Account Manager Stevenson Functional Manager M.Williams Approvals Signature Date NSTX-U Project Manager R

  9. Work Authorization Document NSTX Upgrade Project

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    Cost n n % PPCTe B Earned value cost (BCWP) m Bg o %CPlanned value cost (BCWS) NSTX Upgrade Project: Period of Performance: $102 Control Account Manager: Revision #: Revision Date: July-11 Authorized Work Description: Attachments: ECP# Implement Date Prior Budget New Budget Name Control Account Manager Blanchard

  10. Work Authorization Document NSTX Upgrade Project

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    Cost n n % PPCTe B Earned value cost (BCWP) m Bg o %CPlanned value cost (BCWS) NSTX Upgrade Project: Period of Performance: $442 Control Account Manager: Revision #: Revision Date: CLOSED Authorized Work Description: Attachments: ECP# Implement Date Prior Budget New Budget Name Control Account Manager Chrzanowski

  11. Work Authorization Document NSTX Upgrade Project

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    Earned value cost (BCWP) m Bg o %CPlanned value cost (BCWS) NSTX Upgrade Project Subtotal 1,401 23FEB09A: Period of Performance: $3,335 Control Account Manager: Revision #: Revision Date: July-11 Authorized Work Description: Attachments: ECP# Implement Date Prior Budget New Budget Name Control Account Manager Raki

  12. Work Authorization Document NSTX Upgrade Project

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    Earned value cost (BCWP) m Bg o %CPlanned value cost (BCWS) NSTX Upgrade Project Subtotal 1,240 23FEB09A: Period of Performance: $2,260 Control Account Manager: Revision #: Revision Date: July-11 Authorized Work Description: Attachments: ECP# Implement Date Prior Budget New Budget Name Control Account Manager Denault

  13. Work Authorization Document NSTX Upgrade Project

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    Earned value cost (BCWP) m Bg o %CPlanned value cost (BCWS) NSTX Upgrade Project Subtotal 1,366 23FEB09A: Period of Performance: $1,860 Control Account Manager: Revision #: Revision Date: July-11 Authorized Work Description: Attachments: ECP# Implement Date Prior Budget New Budget Name Control Account Manager Denault

  14. Work Authorization Document NSTX Upgrade Project

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    % PPCTe B Earned value cost (BCWP) m Bg o %CPlanned value cost (BCWS) NSTX Upgrade Project Subtotal 1: Period of Performance: $3,618 Control Account Manager: Revision #: Revision Date: July-11 Authorized Work Description: Attachments: ECP# Implement Date Prior Budget New Budget Name Control Account Manager Perry

  15. Preparation for upgrading western subbituminous coal

    SciTech Connect (OSTI)

    Grimes, R.W.; Cha, C.Y.; Sheesley, D.C.

    1990-11-01T23:59:59.000Z

    The objective of this project was to establish the physical and chemical characteristics of western coal and determine the best preparation technologies for upgrading this resource. Western coal was characterized as an abundant, easily mineable, clean, low-sulfur coal with low heating value, high moisture, susceptibility to spontaneous ignition, and considerable transit distances from major markets. Project support was provided by the Morgantown Energy Technology Center (METC) of the US Department of Energy (DOE). The research was conducted by the Western Research Institute, (WRI) in Laramie, Wyoming. The project scope of work required the completion of four tasks: (1) project planning, (2) literature searches and verbal contacts with consumers and producers of western coal, (3) selection of the best technologies to upgrade western coal, and (4) identification of research needed to develop the best technologies for upgrading western coals. The results of this research suggest that thermal drying is the best technology for upgrading western coals. There is a significant need for further research in areas involving physical and chemical stabilization of the dried coal product. Excessive particle-size degradation and resulting dustiness, moisture reabsorption, and high susceptibility to spontaneous combustion are key areas requiring further research. Improved testing methods for the determination of equilibrium moisture and susceptibility to spontaneous ignition under various ambient conditions are recommended.

  16. UPGRADES TO Monteburns, VERSION 3.0

    SciTech Connect (OSTI)

    Galloway, Jack D [Los Alamos National Laboratory; Trellue, Holly R [Los Alamos National Laboratory

    2012-06-22T23:59:59.000Z

    Monteburns VERSION 3.0 is an upgrade of the existing Monteburns code available through RSICC. The new version includes modern programming style, increased parallel computing, more accurate capture gamma calculations and an automated input generator. This capability was demonstrated through a small PWR core simulation.

  17. T-Farm complex alarm upgrades

    SciTech Connect (OSTI)

    Roberts, J.B.

    1995-01-01T23:59:59.000Z

    The alarm and controls associated with the T, TX, and TY farms are located in the 242-T control room. The design data for replacement and upgrades of the alarm panels is in this document. This task was canceled previous to the 90% design review point.

  18. Testing of FMI's Coal Upgrading Process

    SciTech Connect (OSTI)

    Vijay Sethi

    2009-03-21T23:59:59.000Z

    WRI and FMI have collaborated to develop and test a novel coal upgrading technology. Proprietary coal upgrading technology is a fluidized bed-based continuous process which allows high through-puts, reducing the coal processing costs. Processing is carried out under controlled oxidizing conditions at mild enough conditions that compared to other coal upgrading technologies; the produced water is not as difficult to treat. All the energy required for coal drying and upgrading is derived from the coal itself. Under the auspices of the Jointly Sponsored Research Program, Cooperative Agreement DE-FC26-98FT40323, a nominal 400 lbs/hour PDU was constructed and operated. Over the course of this project, several low-rank coals were successfully tested in the PDU. In all cases, a higher Btu, low moisture content, stable product was produced and subsequently analyzed. Stack emissions were monitored and produced water samples were analyzed. Product stability was established by performing moisture readsorption testing. Product pyrophobicity was demonstrated by instrumenting a coal pile.

  19. Self-Correcting HVAC Controls: Algorithms for Sensors and Dampers in Air-Handling Units

    SciTech Connect (OSTI)

    Fernandez, Nicholas; Brambley, Michael R.; Katipamula, Srinivas

    2009-12-31T23:59:59.000Z

    This report documents the self-correction algorithms developed in the Self-Correcting Heating, Ventilating and Air-Conditioning (HVAC) Controls project funded jointly by the Bonneville Power Administration and the Building Technologies Program of the U.S. Department of Energy. The algorithms address faults for temperature sensors, humidity sensors, and dampers in air-handling units and correction of persistent manual overrides of automated control systems. All faults considered create energy waste when left uncorrected as is frequently the case in actual systems.

  20. R and D opportunities for commercial HVAC (heating, air conditioning, and ventilation) equipment

    SciTech Connect (OSTI)

    Chiu, S.A.; Zaloudek, F.R.

    1987-03-01T23:59:59.000Z

    The overall objective of this project is to identify and characterize generic HVAC equipment research that will provide the best investment opportunities for DOE R and D funds. The prerequisites of a DOE research program include research efforts that are potentially significant in energy conservation impact and that are cost-effective, long-term, and high risk. These prerequisites form the basic guidelines for the R and D opportunities assessed. The assessment excludes the R and D areas that have potential or current private sector sponsors. Finally, R and D areas which are included in DOE programs generally are not addressed.

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

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube|6721 FederalTexas Energy IncentiveLandscaping EnergySavings*Appliances |HVAC

  2. International HVAC&R R&D Collaboration | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment of EnergyIndustry15Among Statesfor aInternational HVAC&R

  3. Upgrade of CEBAF from 6 Gev To 12 Gev: Status

    SciTech Connect (OSTI)

    Harwood, Leigh [Jefferson Lab, 12000 Jefferson Ave, Newport News, VA, 23606 (United States)

    2013-04-19T23:59:59.000Z

    The CEBAF accelerator is being upgraded from 6 GeV to 12 GeV by the US Department of Energy. The accelerator upgrade is being done within the existing tunnel footprint. The accelerator upgrade includes: 10 new srfbased high-performance cryomodules plus RF systems, doubling the 2K helium plant's capability, upgrading the existing beamlines to operate at nearly double the original performance envelope, and adding a beamline to a new experimental area. Construction is over 75% complete with final completion projected for late FY13. Details of the upgrade and status of the work will be presented.

  4. Report on HVAC option selections for a relocatable classroom energy and indoor environmental quality field study

    SciTech Connect (OSTI)

    Apte, Michael G.; Delp, Woody W.; Diamond, Richard C.; Hodgson, Alfred T.; Kumar, Satish; Rainer, Leo I.; Shendell, Derek G.; Sullivan, Doug P.; Fisk, William J.

    2001-10-11T23:59:59.000Z

    It is commonly assumed that efforts to simultaneously develop energy efficient building technologies and to improve indoor environmental quality (IEQ) are unfeasible. The primary reason for this is that IEQ improvements often require additional ventilation that is costly from an energy standpoint. It is currently thought that health and productivity in work and learning environments requires adequate, if not superior, IEQ. Despite common assumptions, opportunities do exist to design building systems that provide improvements in both energy efficiency and IEQ. This report outlines the selection of a heating, ventilation, and air conditioning (HVAC) system to be used in demonstrating such an opportunity in a field study using relocatable school classrooms. Standard classrooms use a common wall mounted heat pump HVAC system. After reviewing alternative systems, a wall-mounting indirect/direct evaporative cooling system with an integral hydronic gas heating is selected. The anticipated advantages of this system include continuous ventilation of 100 percent outside air at or above minimum standards, projected cooling energy reductions of about 70 percent, inexpensive gas heating, improved airborne particle filtration, and reduced peak load electricity use. Potential disadvantages include restricted climate regions and possible increases in indoor relative humidity levels under some conditions.

  5. CHARACTERIZATION OF AIRFLOWS NEAR THE EXIT OF HVAC REGISTERS USING LASER DOPPLER VELOCIMETRY (LDV).

    SciTech Connect (OSTI)

    TUTU,N.K.; KRISHNA,C.R.; ANDREWS,J.W.; BUTCHER,T.A.

    2003-03-13T23:59:59.000Z

    A facility to characterize the airflow at the exit of HVAC registers was designed and fabricated. The objective of this work is to obtain velocity and turbulence data at the exit of registers, which can then be used as an input boundary condition in a modern Computational Fluid Dynamics (CFD) code to predict the velocity and temperature distribution in an enclosure, and also the register performance parameters such as throw. During the course of this work, two commonly used registers were tested. Both registers were 8 inch x 4 inch sidewall registers. Laser Doppler Velocimetry was used to measure the axial and vertical components of the velocity vector at various locations across the face of the registers. For the two cases of registers studied here, the results suggest that the velocity field at the very exit of each of these registers scales with the flow rate through the registers. This means that, in the mode of operation in which the supply fan (of an HVAC system) has a ''High'' and ''Low'' setting, similar velocity scaling would result for the type of registers tested here.

  6. COMPREHENSIVE DIAGNOSTIC AND IMPROVEMENT TOOLS FOR HVAC-SYSTEM INSTALLATIONS IN LIGHT COMMERCIAL BUILDINGS

    SciTech Connect (OSTI)

    Abram Conant; Mark Modera; Joe Pira; John Proctor; Mike Gebbie

    2004-10-31T23:59:59.000Z

    Proctor Engineering Group, Ltd. (PEG) and Carrier-Aeroseal LLP performed an investigation of opportunities for improving air conditioning and heating system performance in existing light commercial buildings. Comprehensive diagnostic and improvement tools were created to address equipment performance parameters (including airflow, refrigerant charge, and economizer operation), duct-system performance (including duct leakage, zonal flows and thermal-energy delivery), and combustion appliance safety within these buildings. This investigation, sponsored by the National Energy Technology Laboratory, a division of the U.S. Department of Energy, involved collaboration between PEG and Aeroseal in order to refine three technologies previously developed for the residential market: (1) an aerosol-based duct sealing technology that allows the ducts to be sealed remotely (i.e., without removing the ceiling tiles), (2) a computer-driven diagnostic and improvement-tracking tool for residential duct installations, and (3) an integrated diagnosis verification and customer satisfaction system utilizing a combined computer/human expert system for HVAC performance. Prior to this work the aerosol-sealing technology was virtually untested in the light commercial sector--mostly because the savings potential and practicality of this or any other type of duct sealing had not been documented. Based upon the field experiences of PEG and Aeroseal, the overall product was tailored to suit the skill sets of typical HVAC-contractor personnel.

  7. HVAC ENERGY EFFICIENCY CASE STUDY "Melink works well in our kitchen--it saves energy, reduces hood noise

    E-Print Network [OSTI]

    California at Davis, University of

    HVAC ENERGY EFFICIENCY CASE STUDY "Melink works well in our kitchen--it saves energy, reduces hood case studies have already been performed using this technology (demand control kitchen ventilation) and the savings are well proven. This study is a summarized compilation of select SPEED case studies

  8. General Methodology Combining Engineering Optimization of Primary HVAC & R Plants with Decision Analysis Methods--Part I: Deterministic Analysis

    SciTech Connect (OSTI)

    Jiang, Wei; Reddy, T. A.

    2007-01-31T23:59:59.000Z

    This paper is the first of a two-part sequence that proposes a general methodology for dynamic scheduling and optimal control of complex primary HVAC&R plants, which combines engineering analyses within a practical decision analysis framework by modeling risk attitudes of the operator. The paper was based on work done prior to employment by Battelle.

  9. VOLUME 11, NUMBER 2 HVAC&R RESEARCH APRIL 2005 Ground-Source Heat Pump System Research--

    E-Print Network [OSTI]

    VOLUME 11, NUMBER 2 HVAC&R RESEARCH APRIL 2005 165 EDITORIAL Ground-Source Heat Pump System Research-- Past, Present, and Future J.D. Spitler, PhD, PE Fellow ASHRAE Ground-source heat pump (GSHP-source heat pumps installed worldwide. These systems may be closed-loop ("ground-coupled") or open

  10. Analysis of Innovative HVAC System Technologies and Their Application for Office Buildings in Hot and Humid Climates

    E-Print Network [OSTI]

    Tanskyi, Oleksandr

    2012-02-14T23:59:59.000Z

    air distribution system VAV ? Variable air volume VFD ? Variable frequency drive wb ? wet-bulb WERC ? Wisenbaker Engineering Research Center viii TABLE OF CONTENTS Page ABSTRACT... fulfillment of the requirements for the degree of MASTER OF SCIENCE December 2010 Major Subject: Mechanical Engineering Analysis of Innovative HVAC System Technologies and Their Application for Office...

  11. Value impact analysis of Generic Issue 143, Availability of Heating, Ventilation, Air Conditioning (HVAC) and Chilled Water Systems

    SciTech Connect (OSTI)

    Daling, P.M.; Marler, J.E.; Vo, T.V.; Phan, H.; Friley, J.R. [Pacific Northwest Lab., Richland, WA (United States)

    1993-11-01T23:59:59.000Z

    This study evaluates the values (benefits) and impacts (costs) associated with potential resolutions to Generic Issue 143, ``Availability of HVAC and Chilled Water Systems.`` The study identifies vulnerabilities related to failures of HVAC, chilled water, and room cooling systems; develops estimates of room heatup rates and safety-related equipment vulnerabilities following losses of HVAC/room cooler systems; develops estimates of the core damage frequencies and public risks associated with failures of these systems; develops three proposed resolution strategies to this generic issue; and performs a value/impact analysis of the proposed resolutions. Existing probabilistic risk assessments for four representative plants, including one plant from each vendor, form the basis for the core damage frequency and public risk calculations. Both internal and external events were considered. It was concluded that all three proposed resolution strategies exceed the $1,000/person-rem cost-effectiveness ratio. Additional evaluations were performed to develop ``generic`` insights on potential design-related and configuration-related vulnerabilities and potential high-frequency ({approximately}1E-04/RY) accident sequences that involve failures of HVAC/room cooling functions. It was concluded that, although high-frequency accident sequences may exist at some plants, these high-frequency sequences are plant-specific in nature or have been resolved through hardware and/or operational changes. The plant-specific Individual Plant Examinations are an effective vehicle for identification and resolution of these plant-specific anomalies and hardware configurations.

  12. Feasibility of Retrofitting Centralized HVAC Systems for Room-Level Zoning Tamim Sookoor, Brian Holben, Kamin Whitehouse

    E-Print Network [OSTI]

    Whitehouse, Kamin

    and enable rooms to be heated or cooled individually, in order to reduce waste caused by conditioning into each room. Such a system could reduce wasted energy that is used to heat and cool unoccupied rooms {sookoor,bnh4k,whitehouse}@cs.virginia.edu Abstract--Heating, ventilation, and cooling (HVAC) accounts

  13. Proper Setup of HVAC System in Conjunction with Sound Building 'Skin' Design for Alleviation of IAQ and Energy Performance Problems

    E-Print Network [OSTI]

    Rosenberg, M.

    2006-01-01T23:59:59.000Z

    climates, not only because of the loss of energy, but also because of damage that can result to insulation, drywall, and structure in addition to promotion of mold and mildew growth. Proper setup of the HVAC system, in conjunction with sound building “skin...

  14. JEFFERSON LAB 12 GEV CEBAF UPGRADE

    SciTech Connect (OSTI)

    Rode, C. H. [Thomas Jefferson National Accelerator Facility, Newport News, Virginia, 23606 (United States)

    2010-04-09T23:59:59.000Z

    The existing continuous electron beam accelerator facility (CEBAF) at Thomas Jefferson National Accelerator Facility (TJNAF) is a 5-pass, recirculating cw electron Linac operating at approx6 GeV and is devoted to basic research in nuclear physics. The 12 GeV CEBAF Upgrade is a $310 M project, sponsored by the Department of Energy (DOE) Office of Nuclear Physics, that will expand its research capabilities substantially by doubling the maximum energy and adding major new experimental apparatus. The project received construction approval in September 2008 and has started the major procurement process. The cryogenic aspects of the 12 GeV CEBAF Upgrade includes: doubling the accelerating voltages of the Linacs by adding ten new high-performance, superconducting radiofrequency (SRF) cryomodules (CMs) to the existing 42 1/4 cryomodules; doubling of the 2 K cryogenics plant; and the addition of eight superconducting magnets.

  15. Upgrade of Fermilab/NICADD photoinjector laboratory

    SciTech Connect (OSTI)

    Piot, P.; Edwards, H.; /Fermilab; Huning, M.; /DESY; Li, J.; Tikhoplav, R.; /Rochester U.; Koeth, T.; /Rutgers U., Piscataway

    2005-05-01T23:59:59.000Z

    The Fermilab/NICADD photoinjector laboratory is a 16 MeV electron accelerator dedicated to beam dynamics and advanced accelerator physics studies. FNPL will soon be capable of operating at {approx} 40 MeV, after the installation of a high gradient TESLA cavity. In this paper we present the foreseen design for the upgraded facility along with its performance. We discuss the possibilities of using of FNPL as an injector for the superconducting module and test facility (SM&TF).

  16. NSTX-U Control System Upgrades

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

    Erickson, K G; Gates, D A; Gerhardt, S P; Lawson, J E; Mozulay, R; Sichta, P; Tchilinguirian, G J

    2014-06-01T23:59:59.000Z

    The National Spherical Tokamak Experiment (NSTX) is undergoing a wealth of upgrades (NSTX-U). These upgrades, especially including an elongated pulse length, require broad changes to the control system that has served NSTX well. A new fiber serial Front Panel Data Port input and output (I/O) stream will supersede the aging copper parallel version. Driver support for the new I/O and cyber security concerns require updating the operating system from Redhat Enterprise Linux (RHEL) v4 to RedHawk (based on RHEL) v6. While the basic control system continues to use the General Atomics Plasma Control System (GA PCS), the effort to forward port the entire software package to run under 64-bit Linux instead of 32-bit Linux included PCS modifications subsequently shared with GA and other PCS users. Software updates focused on three key areas: (1) code modernization through coding standards (C99/C11), (2) code portability and maintainability through use of the GA PCS code generator, and (3) support of 64-bit platforms. Central to the control system upgrade is the use of a complete real time (RT) Linux platform provided by Concurrent Computer Corporation, consisting of a computer (iHawk), an operating system and drivers (RedHawk), and RT tools (NightStar). Strong vendor support coupled with an extensive RT toolset influenced this decision. The new real-time Linux platform, I/O, and software engineering will foster enhanced capability and performance for NSTX-U plasma control.

  17. The APS control system network upgrade.

    SciTech Connect (OSTI)

    Sidorowicz, K. v.; Leibfritz, D.; McDowell, W. P.

    1999-10-22T23:59:59.000Z

    When it was installed,the Advanced Photon Source (APS) control system network was at the state-of-the-art. Different aspects of the system have been reported at previous meetings [1,2]. As loads on the controls network have increased due to newer and faster workstations and front-end computers, we have found performance of the system declining and have implemented an upgraded network. There have been dramatic advances in networking hardware in the last several years. The upgraded APS controls network replaces the original FDDI backbone and shared Ethernet hubs with redundant gigabit uplinks and fully switched 10/100 Ethernet switches with backplane fabrics in excess of 20 Gbits/s (Gbps). The central collapsed backbone FDDI concentrator has been replaced with a Gigabit Ethernet switch with greater than 30 Gbps backplane fabric. Full redundancy of the system has been maintained. This paper will discuss this upgrade and include performance data and performance comparisons with the original network.

  18. Investigation of IAQ-Relevant Surface Chemistry and Emissions on HVAC Filter Materials

    SciTech Connect (OSTI)

    Destaillats, Hugo; Fisk, William J.

    2010-02-01T23:59:59.000Z

    Chemical reactions involving ozone of outdoor origin and indoor materials are known to be significant sources of formaldehyde and other irritant gas-phase oxidation products in the indoor environment. HVAC filters are exposed to particularly high ozone concentrations--close to outdoor levels. In this study, we investigated chemical processes taking place on the surface of filters that included fiberglass, polyester, cotton/polyester blend and synthetic (e.g., polyolefin) filter media. Ozone reactions were studied on unused filter media, and on filters that were deployed for 3 months in two different locations: at the Lawrence Berkeley National Laboratory and at the Port of Oakland. Specimens from each filter were exposed to ozone under controlled conditions in a laboratory flow tube at a constant flow of dry or humidified air (50percent relative humidity). Ozone was generated with a UV source upstream of the flow tube, and monitored using a photometric detector. Ozone breakthrough curves were recorded for each sample exposed to ~;;150 ppbv O3 for periods of ~;;1000 min, from which we estimated their uptake rate. Most experiments were performed at 1.3 L/min (corresponding to a face velocity of 0.013 m/s), except for a few tests performed at a higher airflow rate, to obtain a face velocity of 0.093 m/s, slightly closer to HVAC operation conditions. Formaldehyde and acetaldehyde, two oxidation byproducts, were collected downstream of the filter and quantified. Emissions of these volatile aldehydes were consistently higher under humidified air than under dry conditions, at which levels were near the limit of detection. Our results confirm that there are significant reactions of ozone as air containing ozone flows through HVAC filters, particularly when the filters are loaded with particles and the air is humidified. The amount of ozone reacted was not clearly related to the types of filter media, e.g., fiberglass versus synthetic. Specific fiberglass filters that were coated with an impaction oil showed significantly higher formaldehyde emissions than most other samples. Those emissions were magnified in the presence of particles (i.e., in used filters), and were observed even in the absence of ozone, which suggests that hydrolysis of filter binder or tackifier additives may be the reason for those high emissions. Mass balance calculations indicate that the emission rates of formaldehyde and acetaldehyde from the filters are generally not large enough to substantially increase indoor formaldehyde or acetaldehyde concentrations.

  19. General Methodology Combining Engineering Optimization of Primary HVAC and R Plants with Decision Analysis Methods--Part II: Uncertainty and Decision Analysis

    SciTech Connect (OSTI)

    Jiang, Wei; Reddy, T. A.; Gurian, Patrick

    2007-01-31T23:59:59.000Z

    A companion paper to Jiang and Reddy that presents a general and computationally efficient methodology for dyanmic scheduling and optimal control of complex primary HVAC&R plants using a deterministic engineering optimization approach.

  20. Methods and apparatuses for preparing upgraded pyrolysis oil

    DOE Patents [OSTI]

    Brandvold, Timothy A; Baird, Lance Awender; Frey, Stanley Joseph

    2013-10-01T23:59:59.000Z

    Methods and apparatuses for preparing upgraded pyrolysis oil are provided herein. In an embodiment, a method of preparing upgraded pyrolysis oil includes providing a biomass-derived pyrolysis oil stream having an original oxygen content. The biomass-derived pyrolysis oil stream is hydrodeoxygenated under catalysis in the presence of hydrogen to form a hydrodeoxygenated pyrolysis oil stream comprising a cyclic paraffin component. At least a portion of the hydrodeoxygenated pyrolysis oil stream is dehydrogenated under catalysis to form the upgraded pyrolysis oil.

  1. Market assessment for active solar heating and cooling products. Category B: a survey of decision-makers in the HVAC marketplace. Final report

    SciTech Connect (OSTI)

    None

    1980-09-01T23:59:59.000Z

    A comprehensive evaluation of the market for solar heating and cooling products for new and retrofit markets is reported. The emphasis is on the analysis of solar knowledge among HVAC decision makers and a comprehensive evaluation of their solar attitudes and behavior. The data from each of the following sectors are described and analyzed: residential consumers, organizational and manufacturing buildings, HVAC engineers and architects, builders/developers, and commercial/institutional segments. (MHR)

  2. BNL ACCELERATOR TEST FACILITY CONTROL SYSTEM UPGRADE R. Malone...

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

    ACCELERATOR TEST FACILITY CONTROL SYSTEM UPGRADE R. Malone, I. Ben-Zvi, X. Wang, V. Yakimenko BNL , Upton, NY 11973, USA Abstract Brookhaven National Laboratory's Accelerator...

  3. Federal Finance Facilities Available for Energy Efficiency Upgrades...

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

    Finance Facilities Available for Energy Efficiency Upgrades and Clean Energy Deployment resource guide lists the various federal financing programs for which energy efficiency and...

  4. EA-1190: Wastewater Treatment Capability Upgrade, Amarillo, Texas

    Broader source: Energy.gov [DOE]

    This EA evaluates the environmental impacts for the proposed upgrade of the U.S. Department of Energy Pantex Plant Wastewater Treatment Plant in Amarillo, Texas.

  5. Media Advisory - Jefferson Lab 12 GeV Upgrade Groundbreaking...

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

    for its 310 million 12 GeV Upgrade project. When: Tuesday, April 14, 2009. Where: CEBAF Center, Thomas Jefferson National Accelerator Facility, 12000 Jefferson Avenue,...

  6. asdex upgrade results: Topics by E-print Network

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

    physical control system would do. The real time emulation of both, fusion Zachmann, Gabriel 3 Ghost surfaces and island detection Application to LHD and ASDEX Upgrade...

  7. asdex upgrade invited: Topics by E-print Network

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

    physical control system would do. The real time emulation of both, fusion Zachmann, Gabriel 3 Ghost surfaces and island detection Application to LHD and ASDEX Upgrade...

  8. asdex upgrade team: Topics by E-print Network

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

    physical control system would do. The real time emulation of both, fusion Zachmann, Gabriel 5 Ghost surfaces and island detection Application to LHD and ASDEX Upgrade...

  9. asdex upgrade divertor: Topics by E-print Network

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

    physical control system would do. The real time emulation of both, fusion Zachmann, Gabriel 7 Ghost surfaces and island detection Application to LHD and ASDEX Upgrade...

  10. asdex upgrade edge: Topics by E-print Network

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

    physical control system would do. The real time emulation of both, fusion Zachmann, Gabriel 4 Ghost surfaces and island detection Application to LHD and ASDEX Upgrade...

  11. asdex upgrade enhancements: Topics by E-print Network

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

    physical control system would do. The real time emulation of both, fusion Zachmann, Gabriel 3 Ghost surfaces and island detection Application to LHD and ASDEX Upgrade...

  12. Conceptual design report for Project W-420, stack monitoring upgrade

    SciTech Connect (OSTI)

    Lott, D.T., Fluor Daniel Hanford

    1997-03-10T23:59:59.000Z

    This document provides the Conceptual Design for the upgrade of seven designated Tank Farm stacks to meet NESHAP Title 40, CFR, Part 61, Sub-part H requirements.

  13. Office of Energy Policy and Systems Analysis Site Upgrade

    Broader source: Energy.gov [DOE]

    Office of Energy Policy and Systems Analysis site is currently being upgraded to better serve on audience. Please check back shortly.

  14. EFFICIENCY MAINE DIRECT INSTALLS INCREASE UPGRADE PACE | Department...

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

    EFFICIENCY MAINE DIRECT INSTALLS INCREASE UPGRADE PACE Although Maine has one of the United States' highest homeownership rates, more than one-third of the state's residents...

  15. Kitchen Appliance Upgrades Improve Water Efficiency at DOD Exchange...

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

    Kitchen Appliance Upgrades Improve Water Efficiency at DOD Exchange Facilities Case study details the U.S. Department of Defense (DOD) Exchange (formerly the Army and Air Force...

  16. Bioenergy Technologies Office R&D Pathways: Algal Lipid Upgrading...

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

    Algal Biofuels Algal Lipid Extraction and Upgrading to Hydrocarbons Technology Pathway Bioenergy Technologies Office Conversion R&D Pathway: Whole Algae Hydrothermal Liquefaction...

  17. Federal Finance Facilities Available for Energy Efficiency Upgrades...

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

    September 24, 2013 Clean Energy Finance: A Guide to Federal Financing Programs Available for Energy Efficiency Upgrades and Clean Energy Deployment 2 Agenda * Welcome - Molly Lunn,...

  18. Community based outreach strategies in residential energy upgrade programs

    E-Print Network [OSTI]

    McEwen, Brendan (Brendan Carl Francis)

    2012-01-01T23:59:59.000Z

    Home energy upgrades can reduce residential energy consumption and improve indoor conditions, thereby realizing environmental, economic, health and other social benefits. Utilities, government and other actors have established ...

  19. What's Working in Residential Energy Efficiency Upgrade Programs...

    Energy Savers [EERE]

    Texas: Best Offer Ever Produces 564 Upgrades in Record Time Better Buildings Neighborhood Program Home Accomplishments History Better Buildings Partners Stories Interviews Videos...

  20. DEMONSTRATION OF A HYBRID INTELLIGENT CONTROL STRATEGY FOR CRITICAL BUILDING HVAC SYSTEMS

    SciTech Connect (OSTI)

    Craig Rieger; D. Subbaram Naidu

    2010-06-01T23:59:59.000Z

    Many industrial facilities utilize pressure control gradients to prevent migration of hazardous species from containment areas to occupied zones, often using Proportional-Integral-Derivative (PID) control. Within these facilities, PID control is often inadequate to maintain desired performance due to changing operating conditions. As the goal of the Heating, Ventilation and Air-Conditioning (HVAC) control system is to optimize the pressure gradients and associated flows for the plant, Linear Quadratic Tracking (LQT) provides a time-based approach to guiding plant interactions. However, LQT methods are susceptible to modeling and measurement errors, and therefore a hybrid design using the integration of soft control methods with hard control methods is developed and demonstrated to account for these errors and nonlinearities.

  1. Laboratory measurement of secondary pollutant yields from ozone reaction with HVAC filters.

    SciTech Connect (OSTI)

    Destaillats, Hugo; Chen, Wenhao; Apte, Michael; Li, Nuan; Spears, Michael; Almosni, Jérémie; Zhang, Jianshun (Jensen); Fisk, William J.

    2009-09-09T23:59:59.000Z

    We used Proton Transfer Reaction - Mass Spectrometry (PTR-MS) and conventional sampling methods to monitor and identify trace level organic pollutants formed in heterogeneous reactions between ozone and HVAC filters in real time. Experiments were carried out using a bench-scale flow tube reactor operating with dry air and humidified air (50% RH), at realistically high ozone concentrations (150 ppbv). We explored different filter media (i.e., fiberglass and cotton/polyester blends) and different particle loadings (i.e., clean filter and filters loaded with particles for 3 months at the Lawrence Berkeley National Laboratory and the Port of Oakland, CA). Detailed emission dynamics of very low levels of certain organic pollutants from filter media upon ozone exposure in the presence of moisture have been obtained and analyzed.

  2. NSTX-U Control System Upgrades

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

    Erickson, K. G.; Gates, D. A.; Gerhardt, S. P.; Lawson, J. E.; Mozulay, R.; Sichta, P.; Tchilinguirian, G. J.

    2014-06-01T23:59:59.000Z

    The National Spherical Tokamak Experiment (NSTX) is undergoing a wealth of upgrades (NSTX-U). These upgrades, especially including an elongated pulse length, require broad changes to the control system that has served NSTX well. A new fiber serial Front Panel Data Port input and output (I/O) stream will supersede the aging copper parallel version. Driver support for the new I/O and cyber security concerns require updating the operating system from Redhat Enterprise Linux (RHEL) v4 to RedHawk (based on RHEL) v6. While the basic control system continues to use the General Atomics Plasma Control System (GA PCS), the effort to forwardmore »port the entire software package to run under 64-bit Linux instead of 32-bit Linux included PCS modifications subsequently shared with GA and other PCS users. Software updates focused on three key areas: (1) code modernization through coding standards (C99/C11), (2) code portability and maintainability through use of the GA PCS code generator, and (3) support of 64-bit platforms. Central to the control system upgrade is the use of a complete real time (RT) Linux platform provided by Concurrent Computer Corporation, consisting of a computer (iHawk), an operating system and drivers (RedHawk), and RT tools (NightStar). Strong vendor support coupled with an extensive RT toolset influenced this decision. The new real-time Linux platform, I/O, and software engineering will foster enhanced capability and performance for NSTX-U plasma control.« less

  3. Advanced Photon Source Upgrade Project Preliminary Design Report Advanced Photon Source Upgrade Project

    E-Print Network [OSTI]

    Kemner, Ken

    .......................................................................................................1­8 1.3.3 Work Breakdown Structure Upgrade Project · Preliminary Design Report The Advanced Photon Source, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science by Argonne National Laboratory

  4. The value of steam turbine upgrades

    SciTech Connect (OSTI)

    Potter, K.; Olear, D.; [General Physics Corp. (United States)

    2005-11-01T23:59:59.000Z

    Technological advances in mechanical and aerodynamic design of the turbine steam path are resulting in higher reliability and efficiency. A recent study conducted on a 390 MW pulverized coal-fired unit revealed just how much these new technological advancements can improve efficiency and output. The empirical study showed that the turbine upgrade raised high pressure (HP) turbine efficiency by 5%, intermediate pressure (IP) turbine efficiency by 4%, and low pressure (LP) turbine efficiency by 2.5%. In addition, the unit's highest achievable gross generation increased from 360 MW to 371 MW. 3 figs.

  5. Syngas Upgrading to Hydrocarbon Fuels Technology Pathway

    SciTech Connect (OSTI)

    Talmadge, M.; Biddy, M.; Dutta, A.; Jones, S.; Meyer, A.

    2013-03-01T23:59:59.000Z

    This technology pathway case investigates the upgrading of woody biomass derived synthesis gas (syngas) to hydrocarbon biofuels. While this specific discussion focuses on the conversion of syngas via a methanol intermediate to hydrocarbon blendstocks, there are a number of alternative conversion routes for production of hydrocarbons through a wide array of intermediates from syngas. Future work will also consider the variations to this pathway to determine the most economically viable and lowest risk conversion route. Technical barriers and key research needs have been identified that should be pursued for the syngas-to-hydrocarbon pathway to be competitive with petroleum-derived gasoline-, diesel- and jet-range hydrocarbon blendstocks.

  6. Jefferson Lab awards upgrade contracts | Jefferson Lab

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12 InvestigationLabNewLabLabbeginawards upgrade

  7. Cyclotron Institute Upgrade Project - Facilities - Cyclotron Institute

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMFormsGas SeparationsRelevant toSiteCurrent Long-TermUpgrade Overview /

  8. Building America Best Practices Series Vol. 14: Energy Renovations...

    Energy Savers [EERE]

    costs and improve the comfort, health, and safety of their homes by upgrading their heating, ventilation, and air conditioning (HVAC) equipment. Energy Renovations: HVAC More...

  9. Hvac systems as a tool in controlling indoor air quality: A literature review. Final report, May-August 1993

    SciTech Connect (OSTI)

    Samfield, M.M.

    1995-12-01T23:59:59.000Z

    The report gives results of a review of literature on the use of heating, ventilation, and air-conditioning (HVAC) systems to control indoor air quality (IAQ). One conclusion of the review is that HVAC systems very often contribute to the indoor air pollution because of (1) poor system maintenance, (2) overcrowding or the introduction of new pollution-generating sources with buildings, and (3) the location of outdoor air near ambient pollution sources. Another conclusion is that failure to trade off between energy conservation and employee productivity may result in increased IAQ problems. The report contents are based on literature survey covering the years 1988 through 1993, involving 60 references, 32 of which are cited in the report.

  10. CEBAF Upgrade: Cryomodule Performance And Lessons Learned

    SciTech Connect (OSTI)

    Drury, Michael A.; Davis, G. Kirk; Hogan, John P.; Hovater, J. Curt; King, Lawrence; Marhauser, Frank; Park, HyeKyoung; Preble, Joe; Reece, Charles E.; Rimmer, Robert A.; Wang, Haipeng; Wiseman, Mark A.

    2014-02-01T23:59:59.000Z

    The Thomas Jefferson National Accelerator Facility is currently engaged in the 12 GeV Upgrade Project. The goal of the 12 GeV Upgrade is a doubling of the available beam energy of the Continuous Electron Beam Accelerator Facility (CEBAF) from 6 GeV to 12 GeV. This increase in beam energy will be due in large part to the addition of ten C100 cryomodules plus associated new RF in the CEBAF linacs. The C100 cryomodules are designed to deliver 100 MeV per installed cryomodule. Each C100 cryomodule is built around a string of eight seven-cell, electro-polished, superconducting RF cavities. While an average performance of 100MV per cryomodule is needed to achieve the overall 12 GeV beam energy goal, the actual performance goal for the cryomodules is an average energy gain of 108 MV to provide operational headroom. Cryomodule production started in December 2010. All ten of the C100 cryomodules are installed in the linac tunnels and are on schedule to complete commissioning by September 2013. Performance during Commissioning has ranged from 104 MV to 118 MV. In May, 2012 a test of an early C100 achieved 108 MV with full beam loading. This paper will discuss the performance of the C100 cryomodules along with operational challenges and lessons learned for future designs.

  11. The enhanced ASDEX Upgrade pellet centrifuge launcher

    SciTech Connect (OSTI)

    Plöckl, B.; Lang, P. T. [Max Planck Institute for Plasma Physics, EURATOM Association, Boltzmannstr. 2, 85748 Garching (Germany)] [Max Planck Institute for Plasma Physics, EURATOM Association, Boltzmannstr. 2, 85748 Garching (Germany)

    2013-10-15T23:59:59.000Z

    Pellets played an important role in the program of ASDEX Upgrade serving both for investigations on efficient particle fuelling and high density scenarios but also for pioneering work on Edge Localised Mode (ELM) pacing and mitigation. Initially designed for launching fuelling pellets from the magnetic low field side, the system was converted already some time ago to inject pellets from the magnetic high field side as much higher fuelling efficiency was found using this configuration. In operation for more than 20 years, the pellet launching system had to undergo a major revision and upgrading, in particular of its control system. Furthermore, the control system installed adjacent to the launcher had to be transferred to a more distant location enforcing a complete galvanic separation from torus potential and a fully remote control solution. Changing from a hybrid system consisting of PLC S5/S7 and some hard wired relay control to a state of the art PLC system allowed the introduction of several new operational options enabling more flexibility in the pellet experiments. This article describes the new system architecture of control hardware and software, the operating procedure, and the extended operational window. First successful applications for ELM pacing and triggering studies are presented as well as utilization for the development of high density scenarios.

  12. Bitumen utilization via partial upgrading and emulsification

    SciTech Connect (OSTI)

    Sankey, B.M.; Ghosh, M.; Chakrabarty, T. [Imperial Oil Resources Limited, Calgary, Alberta (Canada)

    1995-12-31T23:59:59.000Z

    Further development of the oil sands resources of Alberta, Canada, is constrained by the ability of downstream refineries to process the high sulfur, high viscosity, and high asphaltene content bitumen. Recent engineering studies have demonstrated that high conversion processing of bitumen to produce synthetic crude oil shows at best marginal economics. In this paper, an alternative concept of bitumen upgrading and heavy bottoms utilization is presented. The proposed method of Phased Partial Upgrading (PPU) involves, first, separation of the bitumen into a light overhead fraction and a heavy bottom fraction using conventional processes, such as distillation or solvent deasphalting. The light overhead fraction, which resembles a typical light sour crude, can be marketed directly, or can be hydrotreated to reduce sulfur and enhance quality as catalytic cracker feedstock. The PPU heavy fraction is converted to an emulsion fuel using new techniques and a proprietary surfactant formulation. This fuel can replace coal and other heavy fuels in electrical utilities. Emulsion fuel prepared in a continuous pilot unit was successfully burned in several combustion test programs.

  13. Magnetic switching, final chapter, Book I: the ATA upgrade prototype

    SciTech Connect (OSTI)

    Birx, D.; Cook, E.; Hawkins, S.; Poor, S.; Reginato, L.; Schmidt, J.; Smith, M.W.

    1983-03-22T23:59:59.000Z

    Efforts directed at finding a 10 kHz switch to replace the current 1 kHz gas blown spark gap have culminated in a prototype for an upgrade of ATA. The design and performance of this prototype as well as possible options and recommendations concerning an eventual upgrade are described. 4 references, 9 figures.

  14. Faculty & Staff Email (Server) Upgrade How does this affect me?

    E-Print Network [OSTI]

    Seldin, Jonathan P.

    Faculty & Staff Email (Server) Upgrade How does this affect me? PC Users: No effect server to the Exchange 2010 server. Mobile phones, tablets and email clients (Microsoft Outlook? Upgrading to Exchange 2010 requires us to replace the server to which you connect to retrieve Email

  15. Rebates Cut the Price of Big-Time Efficiency Upgrades

    Broader source: Energy.gov [DOE]

    One of the smartest ways for homeowners to save money on major appliance upgrades is to hook into an energy efficiency rebate program. The Neighborhood Energy Connection (NEC), a non-profit organization in St. Paul, Minnesota, helps local residents take advantage of Xcel Energy’s rebate programs that cut the cost of whole-house energy efficiency upgrades.

  16. Sandia National Laboratories: Upgrades to SNL-EFDC: A Tool to...

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

    ClimateECEnergyComputational Modeling & SimulationUpgrades to SNL-EFDC: A Tool to Balance Marine Hydrokinetic Energy Generation Efficiency with Environmental Response Upgrades to...

  17. U.S. And Russia Complete Nuclear Security Upgrades Under Bratislava...

    Energy Savers [EERE]

    And Russia Complete Nuclear Security Upgrades Under Bratislava Initiative U.S. And Russia Complete Nuclear Security Upgrades Under Bratislava Initiative December 23, 2008 - 9:18am...

  18. The 12 GeV Energy Upgrade at Jefferson Laboratory

    SciTech Connect (OSTI)

    Pilat, Fulvia C.

    2012-09-01T23:59:59.000Z

    Two new cryomodules and an extensive upgrade of the bending magnets at Jefferson Lab has been recently completed in preparation for the full energy upgrade in about one year. Jefferson Laboratory has undertaken a major upgrade of its flagship facility, the CW re-circulating CEBAF linac, with the goal of doubling the linac energy to 12 GeV. I will discuss here the main scope and timeline of the upgrade and report on recent accomplishments and the present status. I will then discuss in more detail the core of the upgrade, the new additional C100 cryomodules, their production, tests and recent successful performance. I will then conclude by looking at the future plans of Jefferson Laboratory, from the commissioning and operations of the 12 GeV CEBAF to the design of the MEIC electron ion collider.

  19. An Experimental Evaluation of HVAC-Grade Carbon-Dioxide Sensors: Part 3, Humidity, Temperature, and Pressure Sensitivity Test Results

    SciTech Connect (OSTI)

    Shrestha, Som S [ORNL; Maxwell, Dr. Gregory [Iowa State University

    2010-01-01T23:59:59.000Z

    This is the third paper in a four-part series reporting on the test and evaluation of typical carbon-dioxide sensors used in building HVAC applications. Fifteen models of NDIR HVAC-grade CO2 sensors were tested and evaluated to determine the humidity, temperature, and pressure sensitivity of the sensors. This paper reports the performance of the sensors at various relative humidity, temperature, and pressure levels common to building HVAC applications and provides a comparison with manufacturer specifications. Among the 15 models tested, eight models have a single-lamp, single-wavelength configuration, four models have a dual-lamp, single-wavelength configuration, and three models have a single-lamp, dual-wavelength configuration. The sensors were tested in a chamber specifically fabricated for this research. A description of the apparatus and the method of test are described in Part 1 (Shrestha and Maxwell 2009). The test result showed a wide variation in humidity, temperature, and pressure sensitivity of CO2 sensors among manufacturers. In some cases, significant variations in sensor performance exist between sensors of the same model. Even the natural variation in relative humidity could significantly vary readings of some CO2 sensor readings. The effects of temperature and pressure variation on NDIR CO2 sensors are unavoidable without an algorithm to compensate for the changes. For the range of temperature and pressure variation in an air-conditioned space, the effect of pressure variation is more significant compared to the effect of temperature variation.

  20. Tenneco upgrades system with equipment conversion

    SciTech Connect (OSTI)

    Wright, K. [Ariel Corp., Mt. Vernon, OH (United States)

    1995-10-01T23:59:59.000Z

    Tenneco Gas, Inc., Houston, recently completed the successful conversion of over 14,300 horsepower compression equipment at its transmission in Catlettsburg, KY. The system consists of three identical Ariel JGC/6 compressors, driven by three matching Ansaldo electric motors, capable of running between 450 and 900 rpm. These variable speed, synchronous electric motors allow for greater flexibility, without the use of traditional cylinder unloaders. If desired Eureka Energy Systems, Richardson, TX designed the compressor package. One of Tenneco`s objectives when selecting a package to upgrade existing compression capabilities was to ensure compliance with future regulations promulgated pursuant to the Clean Air Act Amendments of 1990. Initially, Tenneco considered separable compressors because of the availability of the newer, clean burning, gas ignited drivers in the 5,000 horsepower range, such as the Caterpillar 3612 and 3616. This paper reviews the design, performance and comparative operating cost of these compressor units.

  1. Steam turbine upgrading: low-hanging fruit

    SciTech Connect (OSTI)

    Peltier, R.

    2006-04-15T23:59:59.000Z

    The thermodynamic performance of the steam turbine, more than any other plant component, determines overall plant efficiency. Upgrading steam path components and using computerized design tools and manufacturing techniques to minimise internal leaks are two ways to give tired steam turbines a new lease on life. The article presents three case studies that illustrate how to do that. These are at Unit 1 of Dairyland's J.P. Madgett Station in Alma, WI, a coal-fired subcritical steam plant; the four units at AmerenUE's 600 MW coal-fired Labadie plant west of St. Louis; and Unit 3 of KeyPlan Corp's Northport Power Station on Long Island. 8 figs.

  2. LLRF System for the CEBAF Separator Upgrade

    SciTech Connect (OSTI)

    Plawski, Tomasz E. [JLAB; Bachimanchi, Ramakrishna [JLAB; Hovater, J. Curt [JLAB; Seidman, David J. [JLAB; Wissmann, Mark J. [JLAB

    2014-12-01T23:59:59.000Z

    The Continuous Electron Beam Accelerator Facility (CEBAF) energy upgrade from 6 GeV to 12 GeV includes the installation of four new 748.5 MHz normal conducting deflecting cavities in the 5th pass extraction region. This system will work together with the existing 499 MHz RF Separator in order to allow simultaneous delivery of the beam to four CEBAF experimental halls. The RF system employs two digital LLRF systems controlling four cavities in a vector sum. Cavity tune information of the individual cavities is also obtained using a multiplexing scheme of the forward and reflected RF signals. In this paper we will present detailed LLRF design and the current status of the CEBAF 748.5/499 MHz beam extraction system.

  3. Upgraded HFIR Fuel Element Welding System

    SciTech Connect (OSTI)

    Sease, John D [ORNL

    2010-02-01T23:59:59.000Z

    The welding of aluminum-clad fuel plates into aluminum alloy 6061 side plate tubing is a unique design feature of the High Flux Isotope Reactor (HFIR) fuel assemblies as 101 full-penetration circumferential gas metal arc welds (GMAW) are required in the fabrication of each assembly. In a HFIR fuel assembly, 540 aluminum-clad fuel plates are assembled into two nested annular fuel elements 610 mm (24-inches) long. The welding process for the HFIR fuel elements was developed in the early 1960 s and about 450 HFIR fuel assemblies have been successfully welded using the GMAW process qualified in the 1960 s. In recent years because of the degradation of the electronic and mechanical components in the old HFIR welding system, reportable defects in plate attachment or adapter welds have been present in almost all completed fuel assemblies. In October 2008, a contract was awarded to AMET, Inc., of Rexburg, Idaho, to replace the old welding equipment with standard commercially available welding components to the maximum extent possible while maintaining the qualified HFIR welding process. The upgraded HFIR welding system represents a major improvement in the welding system used in welding HFIR fuel elements for the previous 40 years. In this upgrade, the new inner GMAW torch is a significant advancement over the original inner GMAW torch previously used. The innovative breakthrough in the new inner welding torch design is the way the direction of the cast in the 0.762 mm (0.030-inch) diameter aluminum weld wire is changed so that the weld wire emerging from the contact tip is straight in the plane perpendicular to the welding direction without creating any significant drag resistance in the feeding of the weld wire.

  4. The Jefferson Lab 12 GeV Upgrade

    SciTech Connect (OSTI)

    R.D. McKeown

    2011-10-01T23:59:59.000Z

    A major upgrade of the Continuous Electron Beam Accelerator Facility (CEBAF) at the Thomas Jefferson National Accelerator Facility is in progress. Construction began in 2008 and the project should be completed in 2015. The upgrade includes doubling the energy of the electron beam to 12 GeV, the addition of a new fourth experimental hall, and new experimental equipment in three of the experimental halls. A brief overview of this upgrade project is presented along with some highlights of the anticipated experimental program.

  5. AMI FW UPGRADEABILITY TEST PROCEDURE AND SECURITY ASSESSMENT

    SciTech Connect (OSTI)

    Snyder, Isabelle B [ORNL] [ORNL

    2014-01-01T23:59:59.000Z

    The National Institute of Standards and Technology (NIST) is producing NISTIR 7823 to define test requirements for Smart Meter upgradability. The term Smart Meter refers specifically to advanced electric meters being deployed to enhance management of electricity distribution for residential and industrial consumers. The underlying functional and security requirements for Smart Meter upgradability are specified in NEMA standard SG-AMI 1-2009. The purpose of NISTIR 7823 is to describe conformance test requirements that may be used voluntarily by testers and/or test laboratories to determine whether Smart Meters and Upgrade Management Systems conform to the requirements of NEMA SG-AMI 1-2009.

  6. Superconducting RF Lab Facility Upgrades at Los Alamos

    SciTech Connect (OSTI)

    Katonak, D.J.; Rusnak, B.

    1999-03-01T23:59:59.000Z

    Research and testing of multi-cell superconducting cavities demands extensive contamination control resources to achieve high-cavity fields. Facility upgrades at Los Alamos National Laboratory (LANL) included the modernization of test equipment, expanding and modernizing cleanroom facilities, improving safety, and expanding the high-pressure rinse cleaning process equipment. Each upgrade was integrated into the facility to enable users to assemble prototype cryomodules. The scope of the upgrades, the new installed capability, and budget and schedule for certain aspects of the project are discussed in this paper.

  7. Upgrading of petroleum oil feedstocks using alkali metals and hydrocarbons

    DOE Patents [OSTI]

    Gordon, John Howard

    2014-09-09T23:59:59.000Z

    A method of upgrading an oil feedstock by removing heteroatoms and/or one or more heavy metals from the oil feedstock composition. This method reacts the oil feedstock with an alkali metal and an upgradant hydrocarbon. The alkali metal reacts with a portion of the heteroatoms and/or one or more heavy metals to form an inorganic phase separable from the organic oil feedstock material. The upgradant hydrocarbon bonds to the oil feedstock material and increases the number of carbon atoms in the product. This increase in the number of carbon atoms of the product increases the energy value of the resulting oil feedstock.

  8. Capturing Energy Efficiency Upgrades in the Real Estate Transaction

    Broader source: Energy.gov [DOE]

    "Capturing Energy Efficiency Upgrades in the Real Estate Transaction," by Residential Energy Efficiency Solutions, July 10, 2012. Describes the concept of a residential MPG number as a simple way of describing a home’s energy consumption.

  9. Using QECBs for Street Lighting Upgrades: Lighting the Way to...

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

    Summarizes how the City of San Diego leveraged 13.1 million in qualified energy conservation bonds to increase the size of a street lighting upgrade project. Author: Lawrence...

  10. Financing Energy Upgrades for K-12 School Districts

    Broader source: Energy.gov [DOE]

    U.S. Department of Energy (DOE) Technical Assistance Program (TAP) presentation at a TAP webinar held on April 11, 2013 and dealing with how to finance energy efficiency upgrades for K-12 school districts.

  11. Energy and Emissions Savings through Insulation Upgrade Projects

    E-Print Network [OSTI]

    Lettich, M.

    2008-01-01T23:59:59.000Z

    The presentation demonstrates the value of including insulation system assessment, repairs and upgrades on a facility's physical function and its importance in the overall energy and environmental management program. Financial and environmental...

  12. Financing; A Cost Effective Alternative When Upgrading Energy Efficient Systems

    E-Print Network [OSTI]

    Ertle, J. M.

    in order to effectively compete in the marketplace. One obvious method of reducing costs and improving productivity is to upgrade old, antiquated equipment such as lighting to more modern energy efficient systems. Most projects provide a return...

  13. Biofuels from Corn Stover: Pyrolytic Production and Catalytic Upgrading Studies 

    E-Print Network [OSTI]

    Capunitan, Jewel Alviar

    2013-01-15T23:59:59.000Z

    Due to security issues in energy supply and environmental concerns, renewable energy production from biomass becomes an increasingly important area of study. Thus, thermal conversion of biomass via pyrolysis and subsequent upgrading procedures were...

  14. Honeymoons Lead to Upgrades in Western Vermont | Department of...

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

    month at a low interest rate. "We believe clients view this lag time as an added bonus to the other benefits they are experiencing with energy efficiency upgrades" says...

  15. Microsoft Word - CX-Olympia-SouthElma_upgrades_WEB.doc

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

    0, 2011 REPLY TO ATTN OF: KEP-4 SUBJECT: Environmental Clearance Memorandum Chad Hamel Project Manager - TEP-TPP-1 Proposed Action: The project consists of upgrades to the...

  16. J.R. Simplot: Burner Upgrade Project Improves Performance and...

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

    how the J.R. Simplot Company saved energy and money by increasing the efficiency of the steam system in its potato processing plant in Caldwell, Idaho. J.R. Simplot: Burner Upgrade...

  17. Providing protection: Agencies receive funding to repair, upgrade dams

    E-Print Network [OSTI]

    Wythe, Kathy

    2009-01-01T23:59:59.000Z

    Story by Kathy Wythe tx H2O | pg. 26 Providing protection Agencies receive funding to repair, upgrade dams along with local partners, can apply for grant funds, he said. Construction of the dams began through four federal authorizations..., called floodwater retarding structures and built mostly in rural areas during the 1950s to 1970s, are aging and need repairing. Others now protect urban areas that have developed downstream and need upgrading to meet more stringent safety standards...

  18. Upgrade Your Lighting & Open the Door to Energy Savings

    E-Print Network [OSTI]

    Houcek, J. K.

    2006-01-01T23:59:59.000Z

    Upgrade Your Lighting & Open the Door to Energy Savings John K. Houcek, Energy Monitoring & Analysis Services The purpose of this paper is to convince the reader that the time has come to take a close look at the lighting energy usage... savings as well as payback periods. There is no single lighting upgrade solution that covers such a wide variety of facility types. Next, a methodology is presented that describes the lighting audit process from the initial survey to the final report...

  19. National Spherical Torus Experiment (NSTX) Center Stack Upgrade

    SciTech Connect (OSTI)

    Neumeyer, C; Chrzanowski, J; Dudek, L; Fan, H; Hatcher, R; Heitzenroeder, P; Menard, J; Ono, M; Ramakrishnan, S; Titus, P; Woolley, R

    2009-09-24T23:59:59.000Z

    The purpose of the NSTX Center Stack Upgrade project is to expand the NSTX operational space and thereby the physics basis for next-step ST facilities. The plasma aspect ratio (ratio of plasma major to minor radius) of the upgrade is increased to 1.5 from the original value of 1.26, which increases the cross sectional area of the center stack by a factor of ~ 3 and makes possible higher levels of performance and pulse duration.

  20. Commissioning results from the recently upgraded RHIC LLRF system

    SciTech Connect (OSTI)

    Smith, K.S.; Harvey, M.; Hayes, T.; Narayan, G.; Severino, F.; Yuan, S.; Zaltsman, A.

    2011-03-28T23:59:59.000Z

    During RHIC Run 10, the first phase of the LLRF Upgrade was successfully completed. This involved replacing the aging VME based system with a modern digital system based on the recently developed RHIC LLRF Upgrade Platform, and commissioning the system as part of the normal RHIC start up process. At the start of Run 11, the second phase of the upgrade is underway, involving a significant expansion of both hardware and functionality. This paper will review the commissioning effort and provide examples of improvements in system performance, flexibility and scalability afforded by the new platform. The RHIC LLRF upgrade is based on the recently developed RHIC LLRF Upgrade Platform. The major design goals of the platform are: (1) Design a stand alone, generic, digital, modular control architecture which can be configured to satisfy all of the application demands we currently have, and which will be supportable and upgradeable into the foreseeable future; and (2) It should integrate seamlessly into existing controls infrastructure, be easy to deploy, provide access to all relevant control parameters (eliminate knobs), provide vastly improved diagnostic data capabilities, and permit remote reconfiguration. Although the system is still in its infancy, we think the initial commissioning results from RHIC indicate that these goals have been achieved, and that we've only begun to realize the benefits the platform provides.

  1. Optical Link ASICs for the LHC Upgrade

    E-Print Network [OSTI]

    K. K. Gan; H. P. Kagan; R. D. Kass; J. R. Moore; D. S. Smith

    2009-11-23T23:59:59.000Z

    We have designed three ASICs for possible applications in the optical links of a new layer of pixel detector in the ATLAS experiment for the first phase of the LHC luminosity upgrade. The ASICs include a high-speed driver for the VCSEL, a receiver/decoder to decode the signal received at the PIN diode to extract the data and clock, and a clock multiplier to produce a higher frequency clock to serialize the data for transmission. These ASICs were designed using a 130 nm CMOS process to enhance the radiation-hardness. We have characterized the fabricated ASICs and the submission has been mostly successful. We irradiated the ASICs with 24 GeV/c protons at CERN to a dosage of 70 Mrad. We observed no significant degradation except the driver circuit in the VCSEL driver fabricated using the thick oxide process in order to provide sufficient voltage to drive a VCSEL. The degradation is due to a large threshold shifts in the PMOS transistors used.

  2. Combination process for upgrading residual oils

    SciTech Connect (OSTI)

    Busch, L.E.; Walters, P.W.; Zandona, O.

    1990-01-16T23:59:59.000Z

    This patent describes a method for upgrading high boiling residual portions of crude oils comprising metal contaminants, porphyrins, asphaltenes and high molecular weight multi-ring hydrocarbon material. It comprises: charging a high boiling residual portion of crude oil admixed with diluent in contact with suspended upflowing substantially inert fluidizable solids particulate material at an elevated thermal visbreaking temperature in a riser contact zone for a time sufficient to recover therefrom a vaporous hydrocarbon product higher boiling than gasoline partially decarbonized and demetallized to a lower contaminating metals level, quenching the vaporous product of thermal visbreaking below its dew point after separation from solids, charging quenched thermally modified high boiling hydrocarbon product with a crystalline zeolite cracking catalyst under cracking conditions for a hydrocarbon residence time in a riser cracking zone; recovering a hydrocarbon conversion product; separating a combined C{sub 4} minus wet gas product stream of the visbreaking and zeolite catalyst cracking operating to recover a C{sub 3}-C{sub 4} rich fraction separately from a C{sub 2} minus dry gas product fraction, and regenerating the crystalline zeolite contcontaining catalyst.

  3. Screening of processing and upgrading schemes

    SciTech Connect (OSTI)

    Not Available

    1991-10-01T23:59:59.000Z

    The RFP was predicated on DOE's desire to enhance the development of advanced transportation fuels made from coal via a program to process mild coal gasification (MCG) liquids into high volumetric energy density (HEDF) test fuels. The desired product fuels were to be cost effectively manufactured, have high volumetric energy density, and be hydrocarbon-based for existing and prototype turbine and diesel engines. The sources for these special fuels consist of the abundant and secure indigenous energy resources of coal. Comparison studies were also to be made using other non-petroleum fossil fuels such as shale oil and tar sands bitumen. METC has concluded that MCG technology has the potential to simultaneously satisfy the transportation and power generation fuel needs in the most cost-effective manner. MCG is based on low temperature pyrolysis, a technique known to the coal community for over a century. Most past pyrolysis developments were aimed at maximizing the liquids yield which results in a low quality tarry product requiring significant and capital intensive upgrading. By properly tailoring the pyrolysis severity to control the liquid yield-liquid quality relationship, it has been found that a higher quality distillate-boiling liquid can be readily skimmed'' from the coal. The resultant liquids have a much higher H/C ratio than conventional pyrolytic tars and therefore can be hydroprocessed at lower cost. These liquids are also extremely enriched in 1-, 2-, and 3-ring aromatics.

  4. Process for upgrading tar sand bitumen

    SciTech Connect (OSTI)

    Bartholic, D.B.; Reagan, W.J.

    1989-04-04T23:59:59.000Z

    A process is described for upgrading a charge of a tar sand bitumen concentrate containing mineral matter including fine particles which comprises contacting the charge in a riser in the presence of a low boiling organic solvent diluent with finely divided attrition-resistant particles of a hot fluidizable substantially catalytically inert solid which is substantially chemically inert to a solution of mineral acid. The contact of the charge with the particles is at high temperature and short contact time to vaporize the high hydrogen containing components of the bitumen, the period of time being less than that which induces substantial thermal cracking of the charge, at the end of the time separating the vaporizing product from the fluidizable particles. The fluidizable particles now bear a deposit of both combustible solid, adherent particles of fine particles of mineral matter and metals. The particles of inert solid are passed with deposit of combustibles and fine particles of mineral matter to a regenerator to oxidize the combustible portion of the deposits, removing at least a portion of deposit of mineral matter and metals by removing the inert solid from the regenerator and contacting removed inert solid with a hot mineral acid, and recirculating fluidizable solid depleted at least in part of deposited mineral matter to contact with incoming charge of tar sand bitumen concentrate and diluent.

  5. Process for upgrading tar sand bitumen

    SciTech Connect (OSTI)

    Bartholic, D.B.; Reagan, W.J.

    1989-02-14T23:59:59.000Z

    A process is described for upgrading a charge of a tar sand bitumen concentrate containing metal impurities, colloidal calcium-containing clay and water. It consists of contacting the charge in a riser contacting zone in the presence of a low boiling organic solvent with hot fluidizable attrition-resistant substantially catalytically-inert microspheres, which are 20 to 150 microns in diameter and are composed of previously calcined kaolin clay. The contact takes place at high temperature and short contact time, which permits vaporization of the high hydrogen containing components of the bitumen. The period of time is less than that which induces substantial thermal cracking of the charge. At the end of the time the vaporized produce is separated from the microspheres of calcined kaolin clay, the microspheres of calcined kaolin clay now bearing a deposit of combustible solid, metal impurities and adherent particles of colloidal calcium-containing clay originally contained in the bitumen concentrate, immediately reducing the temperature of the vaporized product to minimize thermal cracking and recovering the product for further refining to produce one or more premium products.

  6. Upgrade to the Birmingham Irradiation Facility

    E-Print Network [OSTI]

    Dervan, P; Hodgson, P; Marin- Reyes; Parker, K; Wilson, J; Baca, M

    2015-01-01T23:59:59.000Z

    The Birmingham Irradiation Facility was developed in 2013 at the University of Birmingham using the Medical Physics MC40 cyclotron. It can achieve High Luminosity LHC (HL-LHC) fluences of 10^15 (1 MeV neutron equivalent (neq)) cm^-2 in 80 s with proton beam currents of 1 ?A and so can evaluate effectively the performance and durability of detector technologies and new components to be used for the HL-LHC. Irradiations of silicon sensors and passive materials can be carried out in a temperature controlled cold box which moves continuously through the homogenous beamspot. This movement is provided by a pre-configured XY-axis Cartesian robot scanning system. In 2014 the cooling system and cold box were upgraded from a recirculating glycol chiller system to a liquid nitrogen evaporative system. The new cooling system achieves a stable temperature of 50 1C in 30 min and aims to maintain sub-0 1C temperatures on the sensors during irradiations. This paper reviews the design, development, commissioning and perform...

  7. Syngas Upgrading to Hydrocarbon Fuels Technology Pathway

    SciTech Connect (OSTI)

    Talmadge, M.; Biddy, Mary J.; Dutta, Abhijit; Jones, Susanne B.; Meyer, Pimphan A.

    2013-03-31T23:59:59.000Z

    In support of the Bioenergy Technologies Office, the National Renewable Energy Laboratory (NREL) and the Pacific Northwest National Laboratory (PNNL) are undertaking studies of biomass conversion technologies to hydrocarbon fuels to identify barriers and target research toward reducing conversion costs. Process designs and preliminary economic estimates for each of these pathway cases were developed using rigorous modeling tools (Aspen Plus and Chemcad). These analyses incorporated the best information available at the time of development, including data from recent pilot and bench-scale demonstrations, collaborative industrial and academic partners, and published literature and patents. This pathway case investigates the upgrading of biomass derived synthesis gas (‘syngas’) to hydrocarbon biofuels. While this specific discussion focuses on the conversion of syngas via a methanol intermediate to hydrocarbon blendstocks, there are a number of alternative conversion routes for production of hydrocarbons through a wide array of intermediates from syngas. Future work will also consider the variations to this pathway to determine the most economically viable and risk adverse conversion route. Technical barriers and key research needs have been identified that should be pursued for the syngas to hydrocarbon pathway to be competitive with petroleum-derived gasoline, diesel and jet range blendstocks.

  8. NSTX Program Overview andNSTX Program Overview and NSTX Upgrade Physics Design ProgressNSTX Upgrade Physics Design Progress

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    -B318, PPPL NSTXNSTX Supported by College W&M Colorado Sch Mines Columbia U CompX General Atomics INL in Upgrade 6. Develop normally-conducting radiation-tolerant magnets for ST applications · Desig

  9. Advanced control strategies for HVAC&R systems—An overview: Part II: Soft and fusion control

    SciTech Connect (OSTI)

    D. Subbaram Naidu; Craig G. Rieger

    2011-04-01T23:59:59.000Z

    A chronological overview of the advanced control strategies for HVAC&R is presented. The overview focuses on hard-computing or control techniques, such as proportional-integral-derivative, optimal, nonlinear, adaptive, and robust; soft-computing or control techniques, such as neural networks, fuzzy logic, genetic algorithms; and the fusion or hybrid of hard and soft control techniques. Part I focused on hardcontrol strategies; Part II focuses on soft and fusion control and some future directions in HVA&R research. This overview is not intended to be an exhaustive survey on this topic, and any omissions of other works is purely unintentional.

  10. Building America Best Practices Series Vol. 14: Energy Renovations - HVAC: A Guide for Contractors to Share with Homeowners

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: Theof Energy Future of CSP:Brookhaven Teaching FellowsBuilderHVAC A Guide for

  11. A testing and HVAC design methodology for air-to-air heat pipe heat exchangers

    SciTech Connect (OSTI)

    Guo, P.; Ciepliski, D.L.; Besant, R.W. [Univ. of Saskatchewan, Saskatoon, Saskatchewan (Canada). Dept. of Mechanical Engineering

    1998-10-01T23:59:59.000Z

    Air-to-air heat pipe heat exchangers were tested using ASHRAE Standard 84-1991 as a guide. Some changes are introduced for the test facility and methods of calculating effectiveness. ASME PTC 19.1-1985 is used as a guide for uncertainty analysis. Tests were done for a range of mass flux [1.574 to 2.912 kg/(m{sup 2}{center_dot}s)], ratios of mass flow rates (0.6 to 1.85), supply air temperatures ({minus}10 C to 40 C), and heat exchanger tilt angles ({minus}8.9{degree} to 11.2{degree}). Because humidity changes in the exhaust and supply air streams were negligible, only the effectiveness of sensible and of total energy was considered. Measured and calculated results show significant variations in the effectiveness of sensible and of total energy, and uncertainties with each independent variable. For balanced exhaust and supply flow rates at {minus}10 C supply air temperature and 1.574 kg/(m{sup 2}{center_dot}s) mass flux, the measured effectiveness for sensible and total energy was calculated to be 0.48 and 0.44, respectively, with uncertainties of 0.057 and 0.052. These measurements decreased to 0.42 and 0.37, with uncertainties of 0.016 and 0.018 for a mass flux of 2.912 kg/(m{sup 2}{center_dot}s). Because water vapor condensation effects were small or negligible, the difference between the effectiveness for the sensible and total energy was within the overlapping uncertainty range of each. Based on counterflow heat exchanger theory and convective heat transfer equations, expressions are presented to extrapolate the effectiveness data between and beyond the measured data points. These effectiveness equations, which represent the variation in effectiveness with several independent operating variables, are used for HVAC design that is aimed at achieving minimum life-cycle costs.

  12. Screening analysis for EPACT-covered commercial HVAC and water-heating equipment

    SciTech Connect (OSTI)

    S Somasundaram; PR Armstrong; DB Belzer; SC Gaines; DL Hadley; S Katipumula; DL Smith; DW Winiarski

    2000-05-25T23:59:59.000Z

    EPCA requirements state that if the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (ASHRAE) amends efficiency levels prescribed in Standard 90.1-1989, then DOE must establish an amended uniform national manufacturing standard at the minimum level specified in amended Standard 90.1. However, DOE can establish higher efficiency levels if it can show through clear and convincing evidence that a higher efficiency level, that is technologically feasible and economically justified, would produce significant additional energy savings. On October 29, 1999, ASHRAE approved the amended Standard 90.1, which increases the minimum efficiency levels for some of the commercial heating, cooling, and water-heating equipment covered by EPCA 92. DOE asked Pacific Northwest National Laboratory (PNNL) to conduct a screening analysis to determine the energy-savings potential of the efficiency levels listed in Standard 90.1-1999. The analysis estimates the annual national energy consumption and the potential for energy savings that would result if the EPACT-covered products were required to meet these efficiency levels. The analysis also estimates additional energy-savings potential for the EPACT-covered products if they were to exceed the efficiency levels prescribed in Standard 90-1-1999. In addition, a simple life-cycle cost (LCC) analysis was performed for some alternative efficiency levels. This paper will describe the methodology, data assumptions, and results of the analysis. The magnitude of HVAC and SWH loads imposed on equipment depends on the building's physical and operational characteristics and prevailing climatic conditions. To address this variation in energy use, coil loads for 7 representative building types at 11 climate locations were estimated based on a whole-building simulation.

  13. Upgrade to the control system of the reflectometry diagnostic of ASDEX upgrade

    SciTech Connect (OSTI)

    Graca, S.; Santos, J.; Manso, M.E. [Associacao EURATOM/IST, Centro de Fusao Nuclear, Instituto Superior Tecnico, 1049-001 Lisbon (Portugal)

    2004-10-01T23:59:59.000Z

    The broadband frequency modulation-continuous wave microwave/millimeter wave reflectometer of ASDEX upgrade tokamak (Institut fuer Plasma Physik (IPP), Garching, Germany) developed by Centro de Fusao Nuclear (Lisboa, Portugal) with the collaboration of IPP, is a complex system with 13 channels (O and X modes) and two types of operation modes (swept and fixed frequency). The control system that ensures remote operation of the diagnostic incorporates VME and CAMAC bus based acquisition/timing systems. Microprocessor input/output boards are used to control and monitor the microwave circuitry and associated electronic devices. The implementation of the control system is based on an object-oriented client/server model: a centralized server manages the hardware and receives input from remote clients. Communication is handled through transmission control protocol/internet protocol sockets. Here we describe recent upgrades of the control system aiming to: (i) accommodate new channels; (ii) adapt to the heterogeneity of computing platforms and operating systems; and (iii) overcome remote access restrictions. Platform and operating system independence was achieved by redesigning the graphical user interface in JAVA. As secure shell is the standard remote access protocol adopted in major fusion laboratories, secure shell tunneling was implemented to allow remote operation of the diagnostic through the existing firewalls.

  14. STAR inner tracking upgrade - A performance study

    E-Print Network [OSTI]

    Jan Kapitan; for the STAR Collaboration

    2009-01-19T23:59:59.000Z

    Anisotropic flow measurements have demonstrated development of partonic collectivity in $200\\mathrm{GeV}$ Au+Au collisions at RHIC. To understand the partonic EOS, thermalization must be addressed. Collective motion of heavy-flavor (c,b) quarks can be used to indicate the degree of thermalization of the light-flavor quarks (u,d,s). Measurement of heavy-flavor quark collectivity requires direct reconstruction of heavy-flavor hadrons in the low $\\pt$ region. Measurement of open charm spectra to high $\\pt$ can be used to investigate heavy-quark energy loss and medium properties. The Heavy Flavor Tracker (HFT), a proposed upgrade to the STAR experiment at midrapidity, will measure $v_{2}$ of open-charm hadrons to very low $\\pt$ by reconstructing their displaced decay vertices. The innermost part of the HFT is the PIXEL detector (made of two low mass monolithic active pixel sensor layers), which delivers a high precision position measurement close to the collision vertex. The Intermediate Silicon Tracker (IST), a 1-layer strip detector, is essential to improve hit identification in the PIXEL detector when running at full RHIC-II luminosity. Using a full GEANT simulation, open charm measurement capabilities of STAR with the HFT will be shown. Its performance in a broad $\\pt$ range will be demonstrated on $v_{2}$ ($\\pt > 0.5\\mathrm{GeV}/c$) and $R_\\mathrm{CP}$ ($\\pt < 10\\mathrm{GeV}/c$) measurements of $\\D$ meson. Results of reconstruction of $\\Lc$ baryon in heavy-ion collisions are presented.

  15. NREL's Advanced Thermal Conversion Laboratory at the Center for Buildings and Thermal Systems: On the Cutting-Edge of HVAC and CHP Technology (Revised)

    SciTech Connect (OSTI)

    Not Available

    2005-09-01T23:59:59.000Z

    This brochure describes how the unique testing capabilities of NREL's Advanced Thermal Conversion Laboratory at the Center For Buildings and Thermal Systems can help industry meet the challenge of developing the next generation of heating, ventilating, and air-conditioning (HVAC) and combined heat and power (CHP) equipment and concepts.

  16. Zuo, W. and Chen, Q. 2010 "Simulations of air distribution in buildings by FFD on GPU," HVAC&R Research, 16(6): 785-798.

    E-Print Network [OSTI]

    Chen, Qingyan "Yan"

    Zuo, W. and Chen, Q. 2010 "Simulations of air distribution in buildings by FFD on GPU," HVAC&R Research, 16(6): 785-798. SIMULATIONS OF AIR DISTRIBUTIONS IN BUILDINGS BY FFD ON GPU Wangda Zuo, Ph to perform real-time simulation for a moderate size building with 107 grids and t = 0.1s using the FFD

  17. This paper has been downloaded from the Building and Environmental Thermal Systems Research Group at Oklahoma State University (http://www.hvac.okstate.edu).

    E-Print Network [OSTI]

    . For these reasons, ground-coupled heat pump systems are potentially more efficient than conven- tional air-to-air -Source Heat Pump System Models in an Integrated Building and System Simulation Environment. HVAC&R Research 12 and Validation of Ground-Source Heat Pump System Models in an Integrated Building and System Simulation

  18. This paper has been downloaded from the Building and Environmental Thermal Systems Research Group at Oklahoma State University (www.hvac.okstate.edu)

    E-Print Network [OSTI]

    Ghajar, Afshin J.

    of system energy consumption and electrical demand in hourly or shorter time intervals. The development, and environmental friendli- ness make them a viable alternative for residential and commercial HVAC systems. Ground and improvements in load profiles. However, despite the perceived economic benefits of such systems, there has been

  19. This paper has been downloaded from the Building and Environmental Thermal Systems Research Group at Oklahoma State University (http://www.hvac.okstate.edu).

    E-Print Network [OSTI]

    function (TF) method was the method of choice for cooling load calculation. There- fore, information; Rundquist 1990; Treado and Bean 1992). Recently, ASHRAE developed two new cooling load calculation: Chantrasrisalai, C., and D.E. Fisher. 2007. Lighting heat gain parameters: Experimental results. HVAC&R Research

  20. Market assessment for active solar heating and cooling products. Category B: A survey of decision makers in the HVAC market place. Survey instruments

    SciTech Connect (OSTI)

    Lilien, G. L.; Johnston, P. E.

    1980-09-01T23:59:59.000Z

    Telephone screener questionnaires and mail-out questionnaires for marketing surveys for solar heating and cooling equipment are presented. Questionnaires are included for the residential segment, industrial segment, HVAC professionals segment, builder/developer segment, and the commercial segment. No results are reported. (WHK)

  1. Measurement of HVAC system performance and local ventilation using passive perfluorocarbon tracer technology

    SciTech Connect (OSTI)

    Dietz, R.N.; Goodrich, R.W.

    1995-06-01T23:59:59.000Z

    In April of 1993, two (2) perfluorocarbon tracer (PFT) ventilation/indoor air quality assessment tests were performed in the Gleeson Hall building of the SUNY Farmingdale campus. The building was being modified, in part, as a result of significant occupant complaints of perceived poor air quality. The four story building had a basement first floor with air supplied normally by an HVAC system labelled as AC1. During this study, AC1 was inoperational and the basement interior rooms (walls) were primarily gone; the other three floors were still being used for classes. It is possible that a sense of poor air quality may have been perceived by first-floor occupants because they were working in the basement, but this issue could not be addressed. The second floor had two (2) lecture halls--Rm 202 (handled by AC4) and Rm 204 (handled by AC5); the balance of the second floor interior rooms and corridors was split between two other air handling systems, AC2 for the west side of the building and AC3 for the east side. The remaining 3rd and 4th floors were also split about evenly between AC2 and AC3. The perimeter rooms, equipped with wall units having their own outside air (OA) source plus centralized return air (RA) bypasses, were not included in this testing which was restricted to the basement floor (1st floor) and the four operating air handling systems, AC2 to AC5, during Test 1 and only AC2 to AC5 during Test 2. Two types of tests were performed using the full suite of 5 PFT types available. The first test was designed to measure the infiltration, exfiltration, and air exchange between the 5 AC zones above and the second test used the 5th tracer, which had been in the basement, as a distributed source throughout the four other zones to act as a surrogate pollutant source. This report provides final conclusions of both tests and suggestions regarding its usefulness in similar building ventilation and indoor air quality assessments.

  2. SLHC, the High-Luminosity Upgrade (public event)

    ScienceCinema (OSTI)

    None

    2011-10-06T23:59:59.000Z

    In the morning of June 23rd a public event is organised in CERN's Council Chamber with the aim of providing the particle physics community with up-to-date information about the strategy for the LHC luminosity upgrade and to describe the current status of preparation work. The presentations will provide an overview of the various accelerator sub-projects, the LHC physics prospects and the upgrade plans of ATLAS and CMS. This event is organised in the framework of the SLHC-PP project, which receives funding from the European Commission for the preparatory phase of the LHC High Luminosity Upgrade project. Informing the public is among the objectives of this EU-funded project. A simultaneous transmission of this meeting will be broadcast, available at the following address: http://webcast.cern.ch/

  3. Upgrade of absolute extreme ultraviolet diagnostic on J-TEXT

    SciTech Connect (OSTI)

    Zhang, X. L.; Cheng, Z. F., E-mail: chengfe@hust.edu.cn; Hou, S. Y.; Zhuang, G.; Luo, J. [State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074 (China)

    2014-11-15T23:59:59.000Z

    The absolute extreme ultraviolet (AXUV) diagnostic system is used for radiation observation on J-TEXT tokamak [J. Zhang, G. Zhuang, Z. J. Wang, Y. H. Ding, X. Q. Zhang, and Y. J. Tang, Rev. Sci. Instrum. 81, 073509 (2010)]. The upgrade of the AXUV system is aimed to improve the spatial resolution and provide a three-dimensional image on J-TEXT. The new system consists of 12 AXUV arrays (4 AXUV16ELG arrays, 8 AXUV20ELG arrays). The spatial resolution in the cross-section is 21 mm for the AXUV16ELG arrays and 17 mm for the AXUV20ELG arrays. The pre-amplifier is also upgraded for a higher signal to noise ratio. By upgrading the AXUV imaging system, a more accurate observation on the radiation information is obtained.

  4. Comparison of heating and cooling energy consumption by HVAC system with mixing and displacement air distribution for a restaurant dining area in different climates

    SciTech Connect (OSTI)

    Zhivov, A.M. [International Air Technologies, Inc., Savoy, IL (United States); Rymkevich, A.A. [St. Petersburg Academy of Refrigeration and Food Technology (Russian Federation). Dept. of Refrigeration Machines and Air-Conditioning Systems

    1998-12-31T23:59:59.000Z

    Different ventilation strategies to improve indoor air quality and to reduce HVAC system operating costs in a restaurant with nonsmoking and smoking areas and a bar are discussed in this paper. A generic sitting-type restaurant is used for the analysis. Prototype designs for the restaurant chain with more than 200 restaurants in different US climates were analyzed to collect the information on building envelope, dining area size, heat and contaminant sources and loads, occupancy rates, and current design practices. Four constant air volume HVAC systems wit h a constant and variable (demand-based) outdoor airflow rate, with a mixing and displacement air distribution, were compared in five representative US climates: cold (Minneapolis, MN); Maritime (Seattle, WA); moderate (Albuquerque, NM); hot-dry (Phoenix, AZ); and hot-humid (Miami, FL). For all four compared cases and climatic conditions, heating and cooling consumption by the HVAC system throughout the year-round operation was calculated and operation costs were compared. The analysis shows: Displacement air distribution allows for better indoor air quality in the breathing zone at the same outdoor air supply airflow rate due to contaminant stratification along the room height. The increase in outdoor air supply during the peak hours in Miami and Albuquerque results in an increase of both heating and cooling energy consumption. In other climates, the increase in outdoor air supply results in reduced cooling energy consumption. For the Phoenix, Minneapolis, and Seattle locations, the HVAC system operation with a variable outdoor air supply allows for a decrease in cooling consumption up to 50% and, in some cases, eliminates the use of refrigeration machines. The effect of temperature stratification on HVAC system parameters is the same for all locations; displacement ventilation systems result in decreased cooling energy consumption but increased heating consumption.

  5. HOM Survey of the First CEBAF Upgrade Style Cavity Pair

    SciTech Connect (OSTI)

    Marhauser, Frank; Davis, G; Drury, Michael; Grenoble, Christiana; Hogan, John; Manus, Robert; Preble, Joseph; Reece, Charles; Rimmer, Robert; Tian, Kai

    2009-05-01T23:59:59.000Z

    The planned upgrade of the Continuous Electron Beam Accelerator Facility (CEBAF) at the Thomas Jefferson National Accelerator Laboratory (JLab) requires ten new superconducting rf (SRF) cavity cryomodules to double the beam energy to the envisaged 12 GeV. Adequate cavity Higher Order Mode (HOM) suppression is essential to avoid multipass, multibunch beam break-up (BBU) instabilities of the recirculating beam. We report on detailed HOM surveys performed for the first two upgrade style cavities tested in a dedicated cavity pair cryomodule at 2K. The safety margin to the BBU threshold budget at 12 GeV has been assessed.

  6. Nuclear power plant security systems - The need for upgrades

    SciTech Connect (OSTI)

    Murskyj, M.P.; Furlow, C.H.

    1989-01-01T23:59:59.000Z

    Most perimeter security systems for nuclear power plants were designed and installed in the late 1970s or early 1980s. This paper explores the need to regularly evaluate and possibly upgrade a security system in the area of perimeter intrusion detection and surveillance. this paper discusses US Nuclear Regulatory Commission audits and regulatory effectiveness reviews (RERs), which have raised issues regarding the performance of perimeter security systems. The audits and RERs identified various degrees of vulnerability in certain aspects of existing perimeter security systems. In addition to reviewing the regulatory concerns, this paper discusses other reasons to evaluate and/or upgrade a perimeter security system.

  7. The 12 GeV JLab Upgrade Project

    SciTech Connect (OSTI)

    Smith, Elton

    2009-01-01T23:59:59.000Z

    The upgrade of the CEBAF Accelerator at Jefferson Lab to 12 GeV will deliver high luminosity and high quality beams, which will open unique opportunities for studies of the quark and gluon structure of hadrons in the valence region. Such physics will be made accessible by substantial additions to the experimental equipment in combination with the increased energy reach of the upgraded machine. The emphasis of the talk will be on the program in a new experimental Hall D designed to search for gluonic excitations.

  8. The 12 GeV JLab Upgrade Project

    E-Print Network [OSTI]

    Elton S. Smith

    2009-01-21T23:59:59.000Z

    The upgrade of the CEBAF Accelerator at Jefferson Lab to 12 GeV will deliver high luminosity and high quality beams, which will open unique opportunities for studies of the quark and gluon structure of hadrons in the valence region. Such physics will be made accessible by substantial additions to the experimental equipment in combination with the increased energy reach of the upgraded machine. The emphasis of the talk will be on the program in a new experimental Hall D designed to search for gluonic excitations.

  9. An Analysis of Building Envelope Upgrades for Residential Energy Efficiency in Hot and Humid Climates

    E-Print Network [OSTI]

    Malhotra, M.; Haberl, J.

    This paper presents the results of the analyses of various envelope upgrades for residential energyefficiency in hot and humid climates. The building components considered for the upgrades include: building shape, construction type, roof...

  10. Q&A: Financing Energy Efficiency Upgrades for Your Home through...

    Office of Environmental Management (EM)

    Q&A: Financing Energy Efficiency Upgrades for Your Home through PowerSaver Loans Q&A: Financing Energy Efficiency Upgrades for Your Home through PowerSaver Loans February 19, 2015...

  11. Motor System Upgrades Smooth the Way to Savings of $700,000 at...

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

    System Upgrades Smooth the Way to Savings of 700,000 at Chevron Refinery Motor System Upgrades Smooth the Way to Savings of 700,000 at Chevron Refinery Chevron, the largest U.S....

  12. Energy Efficiency Upgrades Make a Big Difference to a Small Organizati...

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

    Efficiency Upgrades Make a Big Difference to a Small Organization Energy Efficiency Upgrades Make a Big Difference to a Small Organization Photo of a man and woman standing outside...

  13. An Analysis of Building Envelope Upgrades for Residential Energy Efficiency in Hot and Humid Climates 

    E-Print Network [OSTI]

    Malhotra, M.; Haberl, J.

    2006-01-01T23:59:59.000Z

    This paper presents the results of the analyses of various envelope upgrades for residential energyefficiency in hot and humid climates. The building components considered for the upgrades include: building shape, construction ...

  14. Standard Work Specifications for Single-Family Home Energy Upgrades Summary (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-11-01T23:59:59.000Z

    The U.S. Department of Energy (DOE), the National Renewable Energy Laboratory (NREL) and numerous industry stakeholders developed the Standard Work Specifications for Single-Family Home Energy Upgrades to define the minimum requirements for high-quality residential energy upgrades. Today, the Standard Work Specifications provide a unique source for defining high-quality home energy upgrades, establishing clear expectations for homeowners, contractors, trainers, workers, program administrators, and organizations that provide financing for energy upgrades.

  15. Energy Upgrade California in Los Angeles County, Loan Loss Reserve Fund Agreement

    Broader source: Energy.gov [DOE]

    Energy Upgrade California in Los Angeles County, Loan Loss Reserve Fund Agreement. Example of loan loss reserve agreement.

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

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

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

  18. Air-Side Energy Use Calculations for Four HVAC Systems: Dual Duct Constant Volume (DDCAV), Dual Duct Variable Volume (DDVAV), Constant Volume with Reheat (CAVRH0), Variable Volume with Reheat (VAVRH)

    E-Print Network [OSTI]

    Haberl, J. S.

    2001-01-01T23:59:59.000Z

    This report contains engineering calculations for four (4) air-side, heating, ventilating and air-conditioning systems (HVAC) systems, including: dual duct constant volume (DDCAV), dual duct variable volume (DDVAV), constant volume with reheat...

  19. ASDEX-UPGRADE TOKAMAK EMULATOR FOR TEST OF CONTROL SYSTEM AND SHOT PROGRAMME

    E-Print Network [OSTI]

    Zachmann, Gabriel

    ASDEX-UPGRADE TOKAMAK EMULATOR FOR TEST OF CONTROL SYSTEM AND SHOT PROGRAMME H. Richter, R.H. Cole the the most important internal states of the control software ASDEX-Upgrade tokamak device for controlled systems. I. INTRODUCTION ASDEX-Upgrade is an experimental plasma physical device of the tokamak type

  20. RHIC Operation and Plans for Upgrades Wolfram Fischer

    E-Print Network [OSTI]

    Ă? design 10Ă? achieved #12;Wolfram Fischer 7 Achieved parameters Mode No of bunches Ions/bunch [ 1 0 9] enhanced luminosity 60e9 Au intensity design luminosity Beamexperiments #12;Wolfram Fischer 10 RHIC Run-41 RHIC Operation and Plans for Upgrades Wolfram Fischer C-AD Machine Advisory Committee Meeting 10

  1. Progress in MPC and A upgrades at Luch

    SciTech Connect (OSTI)

    Mizin, P.; Chukov, V.; Rogatchev, V. [Gosudarstvennyj Nauchno-Issledovatel`skij Inst. NPO Luch, Podol`sk (Russian Federation); Curtiss, J. [Brookhaven National Lab., Upton, NY (United States); Erkkila, B. [Los Alamos National Lab., NM (United States); Goodey, K. [Pacific Northwest National Lab., Richland, WA (United States); Hembree, D. Jr. [Oak Ridge National Lab., TN (United States); Lowe, D. [Sandia National Labs., Albuquerque, NM (United States); Turner, C. [Lawrence Livermore National Lab., CA (United States)

    1997-09-01T23:59:59.000Z

    Luch, a MINATOM facility, has been engaged in both scientific research and uranium processing for fifty years. Since the spring of 1996, Luch has participated in a program of US/Russia Cooperation in Nuclear MPC and A Upgrades. The program began with planning for immediate upgrades in MPC and A, with en emphasis on physical protection. In addition, US and Luch experts exchanged technical data during a number of workshops, to establish a common understanding of available MPC and A tools and equipment. Site characterizations and vulnerability assessments were then prepared by Luch, to form the basis for the current program of methodical upgrades in all areas of MPC and A. Access control, alarms and alarm communications are being improved as part of this program. Control of nuclear material is being enhanced through improvements in material monitoring and in transportation security when nuclear material is moved between buildings on the Luch site. A comprehensive, site-wide computer network for Luch was designed during a recent workshop. Acquiring and installing this computer system, complete with COREMAS software, is currently in progress. Nuclear material analysis will be improved through NDA techniques using Canberra InSpector systems. The planned upgrades in nuclear MPC and A will reinforce safeguards over large quantities of HEU at Luch.

  2. Simulation of the TREAT-Upgrade Automatic Reactor Control System

    SciTech Connect (OSTI)

    Lipinski, W.C.; Kirsch, L.W.; Valente, A.D.

    1984-01-01T23:59:59.000Z

    This paper describes the design of the Automatic Reactor Control System (ARCS) for the Transient Reactor Test Facility (TREAT) Upgrade. A simulation was used to facilitate the ARCS design and to completely test and verify its operation before installation at the TREAT facility.

  3. Upgrade LCDs or TVs with improved ergonomic adjustability

    E-Print Network [OSTI]

    Saskatchewan, University of

    Highlights · Upgrade LCDs or TVs with improved ergonomic adjustability · Constant Force (CFTM) patented lift-and-pivot motion technology produces smooth adjustment · Neo-Flex LCD Stand is the only range of movement to your LCD display or TV with the Neo-Flex LCD Stand! This proven technology is now

  4. Installing or Upgrading to the SQL Server 2008

    E-Print Network [OSTI]

    Bernstein, Phil

    CHAPTER 1 Installing or Upgrading to the SQL Server 2008 Database Engine SQL Server 2008 Database Engine Services, formerly referred to as "The Database Engine," is the nucleus of SQL Server 2008. Its that command the use of a feature like SQL Server's Database Engine that can process, store, and secure data

  5. Recent Upgrade of the Klystron Modulator at SLAC

    SciTech Connect (OSTI)

    Nguyen, M.N.; Burkhart, C.P.; Lam, B.K.; Morris, B.; /SLAC

    2011-11-04T23:59:59.000Z

    The SLAC National Accelerator Laboratory employs 244 klystron modulators on its two-mile-long linear accelerator that has been operational since the early days of the SLAC establishment in the sixties. Each of these original modulators was designed to provide 250 kV, 262 A and 3.5 {mu}S at up to 360 pps using an inductance-capacitance resonant charging system, a modified type-E pulse-forming network (PFN), and a pulse transformer. The modulator internal control comprised of large step-start resistor-contactors, vacuum-tube amplifiers, and 120 Vac relays for logical signals. A major, power-component-only upgrade, which began in 1983 to accommodate the required beam energy of the SLAC Linear Collider (SLC) project, raised the modulator peak output capacity to 360 kV, 420 A and 5.0 {mu}S at a reduced pulse repetition rate of 120 pps. In an effort to improve safety, performance, reliability and maintainability of the modulator, this recent upgrade focuses on the remaining three-phase AC power input and modulator controls. The upgrade includes the utilization of primary SCR phase control rectifiers, integrated fault protection and voltage regulation circuitries, and programmable logic controllers (PLC) -- with an emphasis on component physical layouts for safety and maintainability concerns. In this paper, we will describe the design and implementation of each upgraded component in the modulator control system. We will also report the testing and present status of the modified modulators.

  6. COUNTY OF SAN DIEGO Energy Upgrade San Diego

    E-Print Network [OSTI]

    homeowners with initiatives; multifamily energy audit program; extended HERS II audit, field verification a multi-family energy audit program, and will extend HERS II audit and field verification and diagnosticCOUNTY OF SAN DIEGO Energy Upgrade San Diego Summary Sheet ARRA EECBG Discretionary Funding

  7. Post Production Heavy Oil Operations: A Case for Partial Upgrading

    E-Print Network [OSTI]

    Lokhandwala, Taher

    2012-12-05T23:59:59.000Z

    tipping off point and with a detailed look at the chemistry of the oil in question it is possible to make a very viable case for visbreaking. In a similar vein, this analysis can serve as a guide in making a case for other partial upgrading methods as well....

  8. CDF Run IIb Silicon Vertex Detector DAQ Upgrade

    SciTech Connect (OSTI)

    S. Behari et al.

    2003-12-18T23:59:59.000Z

    The CDF particle detector operates in the beamline of the Tevatron proton-antiproton collider at Fermilab, Batavia, IL. The Tevatron is expected to undergo luminosity upgrades (Run IIb) in the future, resulting in a higher number of interactions per beam crossing. To operate in this dense radiation environment, an upgrade of CDF's silicon vertex detector (SVX) subsystem and a corresponding upgrade of its VME-based DAQ system has been explored. Prototypes of all the Run IIb SVX DAQ components have been constructed, assembled into a test stand and operated successfully using an adapted version of CDF's network-capable DAQ software. In addition, a PCI-based DAQ system has been developed as a fast and inexpensive tool for silicon detector and DAQ component testing in the production phase. In this paper they present an overview of the Run IIb silicon DAQ upgrade, emphasizing the new features and improvements incorporated into the constituent VME boards, and discuss a PCI-based DAQ system developed to facilitate production tests.

  9. Investment and Upgrade in Distributed Generation under Uncertainty

    E-Print Network [OSTI]

    Guillas, Serge

    decision as the opportunity cost of exercising the investment option increases as well. In this paper, weInvestment and Upgrade in Distributed Generation under Uncertainty Afzal Siddiqui Karl Maribu 13 for microgrids to use small-scale distributed generation (DG) and combined heat and power (CHP) applications via

  10. Technologies for Upgrading Light Water Reactor Outlet Temperature

    SciTech Connect (OSTI)

    Daniel S. Wendt; Piyush Sabharwall; Vivek Utgikar

    2013-07-01T23:59:59.000Z

    Nuclear energy could potentially be utilized in hybrid energy systems to produce synthetic fuels and feedstocks from indigenous carbon sources such as coal and biomass. First generation nuclear hybrid energy system (NHES) technology will most likely be based on conventional light water reactors (LWRs). However, these LWRs provide thermal energy at temperatures of approximately 300°C, while the desired temperatures for many chemical processes are much higher. In order to realize the benefits of nuclear hybrid energy systems with the current LWR reactor fleets, selection and development of a complimentary temperature upgrading technology is necessary. This paper provides an initial assessment of technologies that may be well suited toward LWR outlet temperature upgrading for powering elevated temperature industrial and chemical processes during periods of off-peak power demand. Chemical heat transformers (CHTs) are a technology with the potential to meet LWR temperature upgrading requirements for NHESs. CHTs utilize chemical heat of reaction to change the temperature at which selected heat sources supply or consume thermal energy. CHTs could directly utilize LWR heat output without intermediate mechanical or electrical power conversion operations and the associated thermodynamic losses. CHT thermal characteristics are determined by selection of the chemical working pair and operating conditions. This paper discusses the chemical working pairs applicable to LWR outlet temperature upgrading and the CHT operating conditions required for providing process heat in NHES applications.

  11. Upgrading the ampacity of HPFF pipe-type cable circuits

    SciTech Connect (OSTI)

    Aabo, T.; Lawson, W.G. [Power Technologies, Inc., Schenectady, NY (United States)] [Power Technologies, Inc., Schenectady, NY (United States); Pancholi, S.V. [Potomac Electric Power Co., Washington, DC (United States)] [Potomac Electric Power Co., Washington, DC (United States)

    1995-01-01T23:59:59.000Z

    The upgrading of several 69 kV pipe-type cable feeders on the Potomac Electric Power Company (PEPCO) ion cable system is The methods used for the ampacity calculation are described. The fluid circulation approach required to meet the feeder emergency load requirements are For the feeders that were in service for approximately 40 years, a system life evaluation was performed.

  12. T Plant secondary containment and leak detection upgrades

    SciTech Connect (OSTI)

    Carlson, T.A.

    1995-10-19T23:59:59.000Z

    The W-259 project will provide upgrades to the 2706-T/TA Facility to comply with Federal and State of Washington environmental regulations for secondary containment and leak detection. The project provides decontamination activities supporting the environmental restoration mission and waste management operations on the Hanford Site.

  13. Energy Management in Small Commercial Buildings: A Look at How HVAC Contractors Can Deliver Energy Efficiency to this Segment

    SciTech Connect (OSTI)

    Hult, Erin; Granderson, Jessica; Mathew, Paul

    2014-07-01T23:59:59.000Z

    While buildings smaller than 50,000 sq ft account for nearly half of the energy used in US commercial buildings, energy efficiency programs to-date have primarily focused on larger buildings. Interviews with stakeholders and a review of the literature indicate interest in energy efficiency from the small commercial building sector, provided solutions are simple and low-cost. An approach to deliver energy management to small commercial buildings via HVAC contractors and preliminary demonstration findings are presented. The energy management package (EMP) developed includes five technical elements: benchmarking and analysis of monthly energy use; analysis of interval electricity data (if available), a one-hour onsite walkthrough, communication with the building owner, and checking of results. This data-driven approach tracks performance and identifies low-cost opportunities, using guidelines and worksheets for each element to streamline the delivery process and minimize the formal training required. This energy management approach is unique from, but often complementary to conventional quality maintenance or retrofit-focused programs targeting the small commercial segment. Because HVAC contractors already serve these clients, the transaction cost to market and deliver energy management services can be reduced to the order of hundreds of dollars per year. This business model, outlined briefly in this report, enables the offering to benefit the contractor and client even at the modest expected energy savings in small buildings. Results from a small-scale pilot of this approach validated that the EMP could be delivered by contractors in 4-8 hours per building per year, and that energy savings of 3-5percent are feasible through this approach.

  14. South Ukraine NPP: Safety improvements through Plant Computer upgrade

    SciTech Connect (OSTI)

    Brenman, O. [Westinghouse Electric Company, 4350 Northern Pike, Monroeville, PA 15146 (United States); Chernyshov, M. A. [Westron, LLC, 1 Acad. Proskura St., Kharkiv 61070 (Ukraine); Denning, R. S. [Battelle, 505 King Ave, Columbus, OH 43201 (United States); Kolesov, S. A. [NAEK Energoatom, 3 Vetrov Str., Kiev, 01032 (Ukraine); Balakan, H. H.; Bilyk, B. I.; Kuznetsov, V. I. [PO South Ukraine NPP, NAEK Energoatom, Mylolayv Region, 55000 (Ukraine); Trosman, G. [US Dept. of Energy, International Nuclear Safety Program, Washington, DC 20585 (United States)

    2006-07-01T23:59:59.000Z

    This paper summarizes some results of the Plant Computer upgrade at the Units 2 and 3 of South Ukraine Nuclear Power Plant (NPP). A Plant Computer, which is also called the Computer Information System (CIS), is one of the key safety-related systems at VVER-1000 nuclear plants. The main function of the CIS is information support for the plant operators during normal and emergency operational modes. Before this upgrade, South Ukraine NPP operated out-of-date and obsolete systems. This upgrade project wax founded by the U.S. DOE in the framework of the International Nuclear Safety Program (INSP). The most efficient way to improve the quality and reliability of information provided to the plant operator is to upgrade the Human-System Interface (HSI), which is the Upper Level (UL) CIS. The upgrade of the CIS data-acquisition system (DAS), which is the Lower Level (LL) CIS, would have less effect on the unit safety. Generally speaking, the lifetime of the LL CIS is much higher than one of the UL CIS. Unlike Plant Computers at the Western-designed plants, the functionality of the WER-1000 CISs includes a control function (Centralized Protection Testing) and a number of the plant equipment monitoring functions, for example, Protection and Interlock Monitoring and Turbo-Generator Temperature Monitoring. The new system is consistent with a historical migration of the format by which information is presented to the operator away from the traditional graphic displays, for example, Piping and Instrument Diagrams (P and ID's), toward Integral Data displays. The cognitive approach to information presentation is currently limited by some licensing issues, but is adapted to a greater degree with each new system. The paper provides some lessons learned on the management of the international team. (authors)

  15. Low rank coal upgrading in a flow of hot water

    SciTech Connect (OSTI)

    Masato Morimoto; Hiroyuki Nakagawa; Kouichi Miura [Kyoto University, Kyoto (Japan). Department of Chemical Engineering

    2009-09-15T23:59:59.000Z

    Simultaneous hydrothermal degradation and extraction at around 350{sup o}C using flowing solvent as a reaction/extraction medium were proposed for upgrading brown coal, more specifically, for converting brown coal into several fractions having different molecular weight and chemical structure under mild conditions. When an Australian brown coal, Loy Yang coal, was treated by water at 350{sup o}C under 18 MPa, the coal was separated into four fractions: gaseous product by 8% yield, water-soluble extract at room temperature (soluble) by 23% yield, extract precipitates as solid at room temperature (deposit) by 23% yield, and residual coal (upgraded coal) by 46% yield on daf basis. The separation was found to be realized by in situ extraction of low-molecular-weight substances released from coal macromolecular structure and/or those generated by hydrothermal decomposition reactions at 350{sup o}C. The solid products obtained, deposit and upgraded coal, were characterized in detail to examine the possibility of their effective utilization as solid fuel and chemical feed stock. The upgraded coal showed higher heating value and higher gasification reactivity than the parent coal, indicating that the upgraded coal can be a better solid fuel than the parent coal. The solid extract, deposit, was found to show thermoplasticity at less than 200{sup o}C, suggesting the possibility of utilizing the deposit as a raw material of high performance carbon materials. Several variables affecting the performance of the proposed method are also examined in detail in this paper. 12 refs., 8 figs., 3 tabs.

  16. Upgraded coal interest group. Quarterly report, July 1, 1995--September 30, 1995

    SciTech Connect (OSTI)

    Weber, W. [Electric Power Research Inst., Chattanooga, TN (United States); Lebowitz, H.E. [Fossil Fuel Sciences, Palo Alto, CA (United States)

    1995-12-31T23:59:59.000Z

    The objectives of the Upgraded Coal Interest Group (UCIG) are as follows: Review and update the status of various coal upgrading technologies and developments and critically assess the results. Perform engineering screening analyses on various coal upgrading approaches. Perform commercialization analyses that will promote the availability and use of upgraded coal products by quantifying the benefits of using them. Identify market opportunities for introduction of upgraded coals. Perform critical analyses on a variety of coals and technologies in areas important to users but not readily available. Perform critical experiments which will show the differences between technologies.

  17. Upgrade of CEBAF from 6-GeV To 12-GeV: Status

    SciTech Connect (OSTI)

    Harwood, Leigh H.

    2013-04-01T23:59:59.000Z

    The CEBAF accelerator is being upgraded from 6 GeV to 12 GeV by the US Department of Energy. The accelerator upgrade is being done within the existing tunnel footprint. The accelerator upgrade includes: 10 new srfbased high-performance cryomodules plus RF systems, doubling the 2K helium plants capability, upgrading the existing beamlines to operate at nearly double the original performance envelope, and adding a beamline to a new experimental area. Construction is over 75% complete with final completion projected for late FY13. Details of the upgrade and status of the work will be presented.

  18. Upgrading Methane Using Ultra-Fast Thermal Swing Adsorption

    SciTech Connect (OSTI)

    Anna Lee Tonkovich

    2004-07-01T23:59:59.000Z

    The purpose of this project is to design and demonstrate an approach to upgrade low-BTU methane streams from coal mines to pipeline-quality natural gas. The objective of Phase I of the project was to assess the technical feasibility and cost of upgrading low-BTU methane streams using ultra-fast thermal swing adsorption (TSA) using Velocys modular microchannel process technology. The objective of Phase II is to demonstrate the process at the bench scale. The project is on schedule and on budget. A technical and economic feasibility assessment was completed in Task 3. The proposed Velocys technology appears feasible for the methane upgrading market. Evaluated categories include adsorbent selection, rapid-cycle valve selection, microchannel manufacturability assessment, and system design and cost. The selected adsorbent, granular microporous carbon from either Barnaby-Sutcliffe or Calgon, experimentally demonstrated sufficient methane capacity under differential temperature at 100 pounds per square inch gauge. Several valve options were identified, including candidates that can operate millions of cycles between refurbishment. The microchannel adsorber and desorber designs were made using internal Velocys manufacturability standards, and the associated costs are acceptable as included with the complete nitrogen rejection unit (NRU) cost projection. A system design and cost estimate was completed for the NRU section of the methane upgrading system. As integrated into the complete system, the cost is in line with the market requirement. The system has six main unit operations: feed compressor, dehydration unit, nitrogen rejection unit, deoxygenator, carbon dioxide scrubber, and a sales compressor. The NRU is the focus of the development program, and a bench-scale demonstration will be initiated in the next fiscal year. The Velocys NRU system targets producing methane with greater than 96% purity and at least 90% recovery for final commercial operation. A preliminary cost analysis of the methane upgrading system, including the Velocys NRU, suggests that costs below $2.00 per million (MM) BTU methane may be achieved. The cost for a conventional methane upgrading system is well above $2.30 per MM BTU, as benchmarked in an Environmental Protection Agency study.

  19. Logue and Singer, HVAC&R, 20(2): 264-275, 2014. Energy Impacts of Effective Residential Range Hood Use, LBNL-6683E Page 1

    E-Print Network [OSTI]

    Use, LBNL-6683E Page 1 Energy Impacts of Effective Range Hood Use for all U.S. Residential Cooking-92322201-0; and by the California Energy Commission through Contracts 500-05-026 and 500-08-061. LBNL Report Number 6683-E #12;Logue and Singer, HVAC&R, 20(2): 264-275, 2014. Energy Impacts of Effective Residential Range Hood Use, LBNL-6683E

  20. Upgrading the Radioactive Waste Management Infrastructure in Azerbaijan

    SciTech Connect (OSTI)

    Huseynov, A. [Baku Radioactive Waste Site IZOTOP, Baku (Azerbaijan); Batyukhnova, O. [State Unitary Enterprise Scientific and Industrial Association Radon, Moscow (Russian Federation); Ojovan, M. [Sheffield Univ., Immobilisation Science Lab. (United Kingdom); Rowat, J. [International Atomic Energy Agency, Dept. of Nuclear Safety and Security, Vienna (Austria)

    2007-07-01T23:59:59.000Z

    Radionuclide uses in Azerbaijan are limited to peaceful applications in the industry, medicine, agriculture and research. The Baku Radioactive Waste Site (BRWS) 'IZOTOP' is the State agency for radioactive waste management and radioactive materials transport. The radioactive waste processing, storage and disposal facility is operated by IZOTOP since 1963 being significantly upgraded from 1998 to be brought into line with international requirements. The BRWS 'IZOTOP' is currently equipped with state-of-art devices and equipment contributing to the upgrade the radioactive waste management infrastructure in Azerbaijan in line with current internationally accepted practices. The IAEA supports Azerbaijan specialists in preparing syllabus and methodological materials for the Training Centre that is currently being organized on the base of the Azerbaijan BRWS 'IZOTOPE' for education of specialists in the area of safety management of radioactive waste: collection, sorting, processing, conditioning, storage and transportation. (authors)

  1. Detector and System Developments for LHC Detector Upgrades

    E-Print Network [OSTI]

    Mandelli, Beatrice; Guida, Roberto; Rohne, Ole; Stapnes, Steinar

    2015-05-12T23:59:59.000Z

    The future Large Hadron Collider (LHC) Physics program and the consequent improvement of the LHC accelerator performance set important challenges to all detector systems. This PhD thesis delineates the studies and strategies adopted to improve two different types of detectors: the replacement of precision trackers with ever increasingly performing silicon detectors, and the improvement of large gaseous detector systems by optimizing their gas mixtures and operation modes. Within the LHC tracker upgrade programs, the ATLAS Insertable B-layer (IBL) is the first major upgrade of a silicon-pixel detector. Indeed the overall ATLAS Pixel Detector performance is expected to degrade with the increase of luminosity and the IBL will recover the performance by adding a fourth innermost layer. The IBL Detector makes use of new pixel and front-end electronics technologies as well as a novel thermal management approach and light support and service structures. These innovations required complex developments and Quality Ass...

  2. Jefferson Lab 12 GeV CEBAF Upgrade

    SciTech Connect (OSTI)

    Claus Rode

    2010-04-01T23:59:59.000Z

    The existing continuous electron beam accelerator facility (CEBAF) at Thomas Jefferson National Accelerator Facility (TJNAF) is a 5-pass, recirculating cw electron Linac operating at ~6 GeV and is devoted to basic research in nuclear physics. The 12 GeV CEBAF Upgrade is a $310 M project, sponsored by the Department of Energy (DOE) Office of Nuclear Physics, that will expand its research capabilities substantially by doubling the maximum energy and adding major new experimental apparatus. The project received construction approval in September 2008 and has started the major procurement process. The cryogenic aspects of the 12 GeV CEBAF Upgrade includes: doubling the accelerating voltages of the Linacs by adding ten new high-performance, superconducting radiofrequency (SRF) cryomodules (CMs) to the existing 42 1/4 cryomodules; doubling of the 2 K cryogenics plant; and the addition of eight superconducting magnets.

  3. 2 MW upgrade of the Fermilab Main Injector

    SciTech Connect (OSTI)

    Weiren Chou

    2003-06-04T23:59:59.000Z

    In January 2002, the Fermilab Director initiated a design study for a high average power, modest energy proton facility. An intensity upgrade to Fermilab's 120-GeV Main Injector (MI) represents an attractive concept for such a facility, which would leverage existing beam lines and experimental areas and would greatly enhance physics opportunities at Fermilab and in the U.S. With a Proton Driver replacing the present Booster, the beam intensity of the MI is expected to be increased by a factor of five. Accompanied by a shorter cycle, the beam power would reach 2 MW. This would make the MI a more powerful machine than the SNS or the J-PARC. Moreover, the high beam energy (120 GeV) and tunable energy range (8-120 GeV) would make it a unique high power proton facility. The upgrade study has been completed and published. This paper gives a summary report.

  4. Using EPICS enabled industrial hardware for upgrading control systems

    SciTech Connect (OSTI)

    Bjorkland, Eric A [Los Alamos National Laboratory; Veeramani, Arun [NATIONAL INSTRUMENTS; Debelle, Thierry [NATIONAL INSTRUMENTS

    2009-01-01T23:59:59.000Z

    Los Alamos National Laboratory has been working with National Instruments (NI) and Cosy lab to implement EPICS Input Output Controller (IOC) software that runs directly on NI CompactRIO Real Time Controller (RTC) and communicates with NI LabVIEW through a shared memory interface. In this presentation, we will discuss our current progress in upgrading the control system at the Los Alamos Neutron Science Centre (LANSCE) and what we have learned about integrating CompactRIO into large experimental physics facilities. We will also discuss the implications of using Channel Access Server for LabVIEW which will enable more commercial hardware platforms to be used in upgrading existing facilities or in commissioning new ones.

  5. Algal Lipid Extraction and Upgrading to Hydrocarbons Technology Pathway

    SciTech Connect (OSTI)

    Davis, Ryan; Biddy, Mary J.; Jones, Susanne B.

    2013-03-31T23:59:59.000Z

    In support of the Bioenergy Technologies Office, the National Renewable Energy Laboratory (NREL) and the Pacific Northwest National Laboratory (PNNL) are undertaking studies of biomass conversion technologies to identify barriers and target research toward reducing conversion costs. Process designs and preliminary economic estimates for each of these pathway cases were developed using rigorous modeling tools (Aspen Plus and Chemcad). These analyses incorporated the best information available at the time of development, including data from recent pilot and bench-scale demonstrations, collaborative industrial and academic partners, and published literature and patents. This technology pathway case investigates the cultivation of algal biomass followed by further lipid extraction and upgrading to hydrocarbon biofuels. Technical barriers and key research needs have been assessed in order for the algal lipid extraction and upgrading pathway to be competitive with petroleum-derived gasoline, diesel and jet range hydrocarbon blendstocks.

  6. ALT-II armor tile design for upgraded TEXTOR operation

    SciTech Connect (OSTI)

    Newberry, B.L. [Univ. of Michigan, Ann Arbor, MI (United States); McGrath, R.T.; Watson, R.D. [Sandia National Labs., Albuquerque, NM (United States); Kohlhaas, W.; Finken, K.H. [Kernforschungsanlage Juelich GmbH (Germany). Inst. fuer Plasmaphysik; Noda, N. [National Inst. for Fusion Science, Nagoya (Japan)

    1994-08-01T23:59:59.000Z

    The upgrade of the TEXTOR tokamak at KFA Juelich was recently completed. This upgrade extended the TEXTOR pulse length from 5 seconds to 10 seconds. The auxiliary heating was increased to a total of 8.0 MW through a combination of neutral beam injection and radio frequency heating. Originally, the inertially cooled armor tiles of the full toroidal belt Advanced Limiter Test -- II (ALT-II) were designed for a 5-second operation with total heating of 6.0 MW. The upgrade of TEXTOR will increase the energy deposited per pulse onto the ALT-II by about 300%. Consequently, the graphite armor tiles for the ALT-II had to be redesigned to avoid excessively high graphite armor surface temperatures that would lead to unacceptable contamination of the plasma. This redesign took the form of two major changes in the ALT-II armor tile geometry. The first design change was an increase of the armor tile thermal mass, primarily by increasing the radial thickness of each tile from 17 mm to 20 mm. This increase in the radial tile dimension reduces the overall pumping efficiency of the ALT-II pump limiter by about 30%. The reduction in exhaust efficiency is unfortunate, but could be avoided only by active cooling of the ALT-II armor tiles. The active cooling option was too complicated and expensive to be considered at this time. The second design change involved redefining the plasma facing surface of each armor tile in order to fully utilize the entire surface area. The incident charged particle heat flux was distributed uniformly over the armor tile surfaces by carefully matching the radial, poloidal and toroidal curvature of each tile to the plasma flow in the TEXTOR boundary layer. This geometry redefinition complicates the manufacturing of the armor tiles, but results in significant thermal performance gains. In addition to these geometry upgrades, several material options were analyzed and evaluated.

  7. Slum upgrading in India and Kenya: investigating the sustainability

    E-Print Network [OSTI]

    Cronin, Victoria Louise Molly

    2012-04-10T23:59:59.000Z

    I – Government of India HUDCO – Housing and Urban Development Corporation Limited IoG – Institute of Governance JNNURM – Jawaharlal Nehru National Urban Renewal Mission KP – Kamgar Putla LDCs – Least Developed Countries MASHAL – Maharashtra Area Social... -up approaches. The case studies are of varying ages and were implemented via partnerships with differing agents including government, NGO, CBO, private developer and donors. The influence and design of the delivery model upon the upgrading sustainability...

  8. Plasma diagnostics for the DIII-D divertor upgrade

    SciTech Connect (OSTI)

    Hill, D.N.; Futch, A. (Lawrence Livermore National Lab., CA (USA)); Buchenauer, D. (Sandia National Labs., Livermore, CA (USA)); Doerner, R.; Lehmer, R.; Schmitz, L. (California Univ., Los Angeles, CA (USA)); Klepper, C.C.; Menon, M. (Oak Ridge National Lab., TN (USA)); Leikind, B.; Lippmann, S.; Mahdavi, M.A.; Schaffer, M.; Smith, J. (General Atomics, San Diego, CA (USA)); Salmonson, J.; Watkins, J. (San

    1990-10-01T23:59:59.000Z

    The DIII-D tokamak is being upgraded to allow for divertor biasing, baffling, and pumping experiments. This paper gives an overview of the new diagnostics added to DIII-D as part of this Advanced Divertor Program. They include tile current monitors, fast reciprocating Langmuir probes, a fixed probe array in the divertor, fast neutral pressure gauges, and H{sub {alpha}} measurements with TV cameras and fiber optics coupled to a high resolution spectrometer. 9 refs.

  9. CRYOGENIC FACITLITY DESIGN IN BEPC II SUPERCONDUCTING UPGRADE.

    SciTech Connect (OSTI)

    JIA,L.X.; WANG,L.; YANG,G.D.; ET AL.

    2004-05-11T23:59:59.000Z

    Three kinds of superconducting device are to be constructed at interaction regions in the upgrade of Beijing Electron-Positron Collider (BEPCII). Two sets of refrigerators with each capacity of 500W at 4.5K are adopted to provide the refrigeration for them. The cryogenic systems to support the operation of the superconducting facilities are under design by Harbin Institute of Technology in China. This paper presents the current design of main cryogenic facilities.

  10. Upgrading the ampacity of HPFF pipe-type cable circuits

    SciTech Connect (OSTI)

    Aabo, T.; Lawson, W.G. [Power Technologies, Inc., Schenectady, NY (United States); Pancholi, S.V. [Potomac Electric Power Co., Washington, DC (United States)

    1994-12-31T23:59:59.000Z

    The upgrading of several 69 kV pipe-type cable feeders on the Potomac Electric Power Company (PEPCo) transmission cable system is discussed. The methods used for the ampacity calculation are described. The fluid circulation approach required to meet the feeder emergency load requirements are discussed. For the feeders that were in service for approximately 40 years, a system life evaluation was performed.

  11. Chapter 2: Machine Design, Fueling, and Heating in ASDEX Upgrade

    SciTech Connect (OSTI)

    Streibl, Bernhard; Lang, Peter Thomas; Leuterer, Fritz; Noterdaeme, Jean-Marie; Staebler, Albrecht [Max-Planck-Institut fuer Plasmaphysik (Germany)

    2003-11-15T23:59:59.000Z

    The machine design, power supply, and machine protection, as well as the different heating systems installed at ASDEX Upgrade are discussed. The available auxiliary heating power of 30 MW, supplied by three different heating systems, allows the power deposition to be varied and species heated over a large range. These three heating systems - neutral beam, ion cyclotron, and electron cyclotron heating - are presented in detail. A description of the pellet refueling system is included, which is successfully used for density control.

  12. Snowflake divertor configuration studies for NSTX-Upgrade

    SciTech Connect (OSTI)

    Soukhanovskii, V A

    2011-11-12T23:59:59.000Z

    Snowflake divertor experiments in NSTX provide basis for PMI development toward NSTX-Upgrade. Snowflake configuration formation was followed by radiative detachment. Significant reduction of steady-state divertor heat flux observed in snowflake divertor. Impulsive heat loads due to Type I ELMs are partially mitigated in snowflake divertor. Magnetic control of snowflake divertor configuration is being developed. Plasma material interface development is critical for NSTX-U success. Four divertor coils should enable flexibility in boundary shaping and control in NSTX-U. Snowflake divertor experiments in NSTX provide good basis for PMI development in NSTX-Upgrade. FY 2009-2010 snowflake divertor experiments in NSTX: (1) Helped understand control of magnetic properties; (2) Core H-mode confinement unchanged; (3) Core and edge carbon concentration reduced; and (4) Divertor heat flux significantly reduced - (a) Steady-state reduction due to geometry and radiative detachment, (b) Encouraging results for transient heat flux handling, (c) Combined with impurity-seeded radiative divertor. Outlook for snowflake divertor in NSTX-Upgrade: (1) 2D fluid modeling of snowflake divertor properties scaling - (a) Edge and divertor transport, radiation, detachment threshold, (b) Compatibility with cryo-pump and lithium conditioning; (2) Magnetic control development; and (3) PFC development - PFC alignment and PFC material choice.

  13. Resolution studies and performance evaluation of the LHCb VELO upgrade

    E-Print Network [OSTI]

    Hynds, Daniel Peter McFarlane; Soler, Paul; Parkes, Christopher

    2015-03-25T23:59:59.000Z

    The LHCb detector at CERN is scheduled to undergo an upgrade during the second long shutdown of the LHC. As part of this upgrade, the vertex detector (VELO) will be replaced with a new hybrid pixel detector, based on an evolution of the Timepix ASIC. The performance of this detector should improve upon that achieved by the current VELO, in addition to facilitating the complete detector readout at 40 MHz. As part of the preparation for this upgrade, this thesis presents the results of studies carried out on the single hit resolution of silicon hybrid pixel detectors. The development of a particle beam telescope has been carried out to allow these studies, shown to operate with track rates in excess of 45 kHz and with a pointing resolution at the device under test of less than 2 ?m. A wide range of sensor types, thicknesses and resistivities have then been tested under different operating conditions and the results presented, with single hit resolutions varying between 4 ?m and 12 ?m depending on the conditi...

  14. Upgrading of raw oil into advanced fuel. Task 5

    SciTech Connect (OSTI)

    Not Available

    1991-10-01T23:59:59.000Z

    The overall objective of the research effort is the determination of the minimum processing requirements to produce high energy density fuels (HEDF) having acceptable fuel specifications. The program encompasses assessing current technology capability; selecting acceptable processing and refining schemes; and generating samples of advanced test fuels. The Phase I Baseline Program is intended to explore the processing alternatives for producing advanced HEDF from two raw synfuel feedstocks, one from Mild Coal Gasification as exemplified by the COALITE process and one from Colorado shale oil. Eight key tasks have been identified as follows: (1) Planning and Environmental Permitting; (2) Transporting and Storage of Raw Fuel Sources and Products; (3) Screening of Processing and Upgrading Schemes; (4) Proposed Upgrading Schemes for Advanced Fuel; (5) Upgrading of Raw Oil into Advanced Fuel (6) Packaging and Shipment of Advanced Fuels; (7) Updated Technical and Economic Assessment; and, (8) Final Report of Phase I Efforts. This topical report summarizes the operations and results of the Phase I Task 5 sample preparation program. The specific objectives of Task 5 were to: Perform laboratory characterization tests on the raw COALITE feed, the intermediate liquids to the required hydroprocessing units and final advanced fuels and byproducts; and produce a minimum of 25-gal of Category I test fuel for evaluation by DOE and its contractors.

  15. CX-100013: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Higher Efficiency HVAC Motors CX(s) Applied: A9, B3.6 Date: 08/25/2014 Location(s): Missouri Offices(s): Golden Field Office Technology Office: Building Technologies Award Number: DE-EE0006721

  16. NREL Delivers In-Home HVAC Efficiency Testing Solutions (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-01-01T23:59:59.000Z

    Researchers at the National Renewable Energy Laboratory (NREL) have recently developed two simple in-home efficiency test methods that can be used by technicians, researchers, or interested homeowners to verify the correct operation and energy efficiency of a home's air conditioning equipment. An efficiency validation method for mini-split heat pumps (MSHPs) - highly efficient refrigerant-based air conditioning and heating systems that permit room-by-room conditioning and control - will enable building researchers to easily explore the installed performance of this class of equipment. MSHPs are very popular overseas and are gaining market share in energy efficient home upgrades throughout the United States. Yet, because MSHPs have multiple variable-speed components that work in tandem, their performance is challenging to measure in a real home. NREL researchers developed a field evaluation method including test equipment, methods, and data analysis to determine the installed performance of this equipment in occupied homes. A field test was conducted to validate the method. When testing a home's operation, it is often important to simulate occupancy within an unoccupied home. That way, the researcher will know the actual usage profiles for heat and moisture generation; this removes the uncertainty associated with real occupants. The second test method details a standardized protocol for generating heat and moisture loads, to mimic occupants and their activities by using heaters and humidifiers. Realistic heat and moisture loads can be used to drive air conditioning systems, evaluate air distribution systems, and examine building enclosure technologies. These loads are drawn from the Building America House Simulation Protocols. Proper application of the method will result in better comparison between performance of the test home and its simulated analogue. This method is also validated by field testing. These test methods are now available in two technical reports. The methods can be used widely by the building research community to confirm proper operation of space conditioning equipment in homes, thereby improving thermal comfort, building health, and durability. National objectives for cost-effective energy savings in the residential sector can be met more quickly and with greater consistency.

  17. asdex upgrade h-mode: Topics by E-print Network

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

    physical control system would do. The real time emulation of both, fusion Zachmann, Gabriel 5 Ghost surfaces and island detection Application to LHD and ASDEX Upgrade...

  18. Project X ICD-2 and its upgrades for Neutrino Factory or Muon Collider

    SciTech Connect (OSTI)

    Lebedev, Valeri; Nagaitsev, Sergei; /Fermilab

    2009-10-01T23:59:59.000Z

    This paper reviews the Initial Configuration Document for Fermilab's Project X and considers its possible upgrades for neutrino factory or muon collider.

  19. Microsoft Word - CX-AlveyMaintenanceHQ_PoleStorageUpgrade_WEB...

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

    4, 2011 REPLY TO ATTN OF: KEP-4 SUBJECT: Environmental Clearance Memorandum Brett Sherer Project Manager - KEP-4 Proposed Action: Environmental protection system upgrades at pole...

  20. Microsoft Word - CX-DrainageUpgradesMultipleSubsFY13_WEB.docx

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

    3, 2012 REPLY TO ATTN OF: KEP-4 SUBJECT: Environmental Clearance Memorandum Brett Sherer Project Manager - KEP-4 Proposed Action: FY13 Environmental Drainage Upgrades at Bonneville...