National Library of Energy BETA

Sample records for ing shell hvac

  1. HVAC Packages for SMSCB

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

    ... Distinctive Characteristics: * Leveraging existing data and DOE resources to characterize SMSCB * Realistic and regionally specific retrofit cost estimation. * Retrofit HVAC ...

  2. 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?"

  3. Advanced HVAC Development and Deployment

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

    of advanced HVAC systems? - "Retrofit-ready" ... - Dehumidification - Water Heating - Ventilation 5 ... Spreadsheet loads and Domestic Hot Water Event Generator. ...

  4. Alternate HVAC systems and exceptions for QA-Credentialed HVAC Contractor |

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

    Department of Energy Alternate HVAC systems and exceptions for QA-Credentialed HVAC Contractor Alternate HVAC systems and exceptions for QA-Credentialed HVAC Contractor The document outlines alternate HVAC systems and exceptions for QA-Credentialed HVAC Contractor. HVAC Credentialing Alternate HVAC Systems Bulletin 07012015.pdf (409.41 KB) More Documents & Publications ENERGY STAR Certified Homes, Version 3 (Rev. 07) Inspection Checklists for National Program Requirements DOE Zero Energy

  5. HVAC design for jails

    SciTech Connect (OSTI)

    Gill, K.E. )

    1994-07-01

    The purpose of this article is to provide an overview of the mechanical, life safety, and IAQ issues in current jail HVAC design. The term jail, as used in this article, is more correctly adult local detention facility, as defined by the American Correctional Association (ACA). It will be used to describe those facilities that (1) are operated at the city and county level by local jurisdictions, not state or federal agencies, and (2) are secure for the detention of both pretrial detainees and sentenced inmates serving terms of less than one year or awaiting assignment to state or federal facilities (prisons).

  6. Higher Efficiency HVAC Motors

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

    Higher Efficiency HVAC Motors 2016 Building Technologies Office Peer Review PJ Piper, pjpiper@qmpower.com CEO, QM Power, Inc. 2 Project Summary Timeline: Start date: 10/1/14 Planned end date: 9/30/16 Key Milestones 1. Target Application and Machine Specs; 2/13/15 2. Motor Design; 9/30/15 3. Build prototype; 3/31/16 4. Performance validation; 8/1/16 Budget: Total Project $ to Date: * DOE: $239,947 * Cost Share: $189,801 Total Project $: * DOE: $750,000 * Cost Share: $635,756 Key Partners: Project

  7. Strategy Guideline: HVAC Equipment Sizing

    SciTech Connect (OSTI)

    Burdick, A.

    2012-02-01

    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.

  8. ORNL: HVAC Lab Research - 2015 Peer Review | Department of Energy

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

    ORNL: HVAC Lab Research - 2015 Peer Review ORNL: HVAC Lab Research - 2015 Peer Review Presenter: Jeffrey Munk, ORNL View the Presentation PDF icon ORNL: HVAC Lab Research - 2015 ...

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

    Energy Savers [EERE]

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

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

    SciTech Connect (OSTI)

    Burdick, A.

    2011-10-01

    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

  11. 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:

  12. Better Buildings Neighborhood Program Business Models Guide: HVAC

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

    Contractor Business Model | Department of Energy HVAC Contractor Business Model Better Buildings Neighborhood Program Business Models Guide: HVAC Contractor Business Model Better Buildings Neighborhood Program Business Models Guide: HVAC Contractor Business Model. HVAC Contractor Business Model (2.28 MB) More Documents & Publications Better Buildings Neighborhood Program Business Models Guide: HVAC Contractor Business Model Conclusion Better Buildings Neighborhood Program Business

  13. 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...

  14. 1999 Commercial Buildings Characteristics--HVAC Conservation...

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

    Center at (202) 586-8800. Energy Information Administration Commercial Buildings Energy Consumption Survey Those commercial buildings that used HVAC conservation features...

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

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

    Better Buildings Neighborhood Program Business Models Guide: HVAC Contractor Business Model Building America Best Practices Series Volume 16: 40% Whole-House Energy Savings in ...

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

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

    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 ...

  17. Building America Envelope and Advanced HVAC Research | Department...

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

    under the Moisture Risk Management research area of the Building America roadmap. ... - 2015 BTO Peer Review HVAC R&D Research & Development Roadmap: Emerging HVAC Technologies

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

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

    More Documents & Publications Thermoelectric HVAC for Light-Duty Vehicle Applications Improving efficiency of a vehicle HVAC system with comfort modeling, zonal design, and ...

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

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

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

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

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

    the key criteria required to create accurate heating and cooling load calculations. ... HVAC Right-Sizing Part 1: Calculating Loads ZERH Webinar: Low Load HVAC in Zero Energy ...

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

    Energy Savers [EERE]

    HVAC, Water Heating, and Appliances Overview - 2015 BTO Peer Review Presenter: Tony Bouza, U.S. Department of Energy View the Presentation HVAC, Water Heating, and Appliances ...

  2. HVAC, Water Heating, and Appliance Overview - 2016 BTO Peer Review...

    Energy Savers [EERE]

    HVAC, Water Heating, and Appliance Overview - 2016 BTO Peer Review HVAC, Water Heating, and Appliance Overview - 2016 BTO Peer Review Presenter: Antonio M. Bouza, U.S. Department ...

  3. 2014-04-28 Issuance: Certification of Commercial HVAC, Water...

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

    28 Issuance: Certification of Commercial HVAC, Water Heating, and Refrigeration Equipment; Final Rule 2014-04-28 Issuance: Certification of Commercial HVAC, Water Heating, and ...

  4. HVAC, Water Heating, and Appliance Subprogram Overview - 2016...

    Office of Environmental Management (EM)

    Heating, and Appliance Subprogram Overview - 2016 BTO Peer Review HVAC, Water Heating, and ... Office's Emerging Technologies: HVAC, Water Heating, and Appliance subprogram. ...

  5. Ing Arvid Nesheim | Open Energy Information

    Open Energy Info (EERE)

    Name: Ing Arvid Nesheim Address: Hoymyrmarka 123A Place: Vollen Zip: 1391 Region: Norway Sector: Marine and Hydrokinetic Phone Number: 47 951 08 439 Website: www.anwsite.com...

  6. BTO Workshop on Advanced HVAC Research Effort

    Broader source: Energy.gov [DOE]

    The Building Technologies Office (BTO) is exploring the launch of a major HVAC research effort in the area of low global warming potential and non-vapor compression technologies. To support this...

  7. HVAC Efficiency Controls Could Mean Significant Savings

    Broader source: Energy.gov [DOE]

    According to a new report from Pacific Northwest National Lab, commercial building owners could save an average 38 percent on their heating and cooling bills just by installing a few new controls onto their HVAC systems.

  8. HVAC R&D | Department of Energy

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

    R&D HVAC R&D Lead Performer: Oak Ridge National Laboratory (ORNL) - Oak Ridge, TN FY16 DOE Funding: 2,688,000 Project Term: Ongoing Funding Type: Direct Lab Funding PROJECT ...

  9. 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?"

  10. Emerging Technologies: HVAC, WH and Appliance

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

    Technologies: HVAC, WH and Appliance BTO Peer Review 2016 Antonio M Bouza antonio.bouza@ee.doe.gov April 5-7, 2016 2 Building Technologies Office (BTO) Ecosystem Codes and Standards Emerging Technologies Residential Buildings Integration Commercial Buildings Integration 3 HVAC, Water Heating and Appliance R&D Strategy: National Labs CRADA projects, FOAs and use of BTO's deployment teams with research homes CRADA : Collaborative Research and Development Agreement More than just discrete

  11. Non-Vapor Compression HVAC Technologies Report

    Broader source: Energy.gov [DOE]

    While vapor-compression technologies have served heating, ventilation, and air-conditioning (HVAC) needs very effectively, and have been the dominant HVAC technology for close to 100 years, the conventional refrigerants used in vapor-compression equipment contribute to global climate change when released to the atmosphere. The Building Technologies Office is evaluating low-global warming potential (GWP) alternatives to vapor-compression technologies.

  12. CBERD: Advanced HVAC Systems | Department of Energy

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

    Advanced HVAC Systems CBERD: Advanced HVAC Systems Left: Environmental chamber to evaluate the performance of air-conditioning systems. Right: Compressor Calorimeter at ORNL. Source: ORNL. Left: Environmental chamber to evaluate the performance of air-conditioning systems. Right: Compressor Calorimeter at ORNL. Source: ORNL. Left: Microchannel heat exchanger co-developed with industry partner Delphi. Right: Large-scale air-to-air exchanger for heat and humidity removal, integrated into a wall

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

    Broader source: Energy.gov [DOE]

    Better Buildings Neighborhood Program Business Models Guide: HVAC Contractor Business Model Conclusion, Summary of HVAC Contractor Insights.

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

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

    HVAC Upgrade Saving Money, Protecting History EECBG Success Story: HVAC Upgrade Saving Money, Protecting History November 2, 2010 - 5:37pm Addthis A new heating and cooling system...

  15. 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 ...

  16. Issue #3: HVAC Proper Installation Energy Savings: Over-Promising...

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

    3: HVAC Proper Installation Energy Savings: Over-Promising or Under-Delivering? Issue 3: HVAC Proper Installation Energy Savings: Over-Promising or Under-Delivering? What energy ...

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

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

    Pre-Commercial Demonstration of Cost-Effective Advanced HVAC Controls - 2014 BTO Peer Review Pre-Commercial Demonstration of Cost-Effective Advanced HVAC Controls - 2014 BTO Peer ...

  18. HVAC, Water Heating, and Appliances Overview - 2015 BTO Peer Review |

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

    Department of Energy Appliances Overview - 2015 BTO Peer Review HVAC, Water Heating, and Appliances Overview - 2015 BTO Peer Review Presenter: Tony Bouza, U.S. Department of Energy View the Presentation HVAC, Water Heating, and Appliances Overview - 2015 BTO Peer Review (801.59 KB) More Documents & Publications HVAC, Water Heater and Appliance R&D - 2014 BTO Peer Review HVAC, Water Heating, and Appliance Subprogram Overview - 2016 BTO Peer Review Research & Development Roadmap:

  19. Home Upgrades: Leveraging HVAC Upgrades for Greater Impact (201)

    Broader source: Energy.gov [DOE]

    Better Buildings Residential Network Peer Exchange Call Series: Home Upgrades: Leveraging HVAC Upgrades for Greater Impact (201), November 18, 2015.

  20. HVAC, Water Heating, and Appliances | Department of Energy

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

    Emerging Technologies » HVAC, Water Heating, and Appliances HVAC, Water Heating, and Appliances About the Portfolio The HVAC/Water Heating/Appliance subprogram develops cost effective, energy efficient technologies with national labs and industry partners. Technical analysis has shown that heat pumps have the technical potential to save up to 50% of the energy used by conventional HVAC technologies in residential buildings. Our focus is on the introduction of new heat pumping technologies, heat

  1. Research & Development Roadmap: Emerging HVAC Technologies

    Broader source: Energy.gov [DOE]

    The Research and Development (R&D) Roadmap for Emerging Heating, Ventilation, and Air-Conditioning (HVAC) Technologies provides recommendations to the Building Technologies Office (BTO) on R&D activities to pursue that will aid in achieving BTO’s energy savings goals.

  2. Text-Alternative Version of Building America Webinar: High Performance HVAC

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

    Systems, Part II: Low-Load HVAC Systems for Single and Multifamily Applications | Department of Energy HVAC Systems, Part II: Low-Load HVAC Systems for Single and Multifamily Applications Text-Alternative Version of Building America Webinar: High Performance HVAC Systems, Part II: Low-Load HVAC Systems for Single and Multifamily Applications High Performance HVAC Systems, Part II: Low-Load HVAC Systems for Single and Multifamily Applications November 16, 2015 Speakers Andrew Poerschke,

  3. Control strategy optimization of HVAC plants

    SciTech Connect (OSTI)

    Facci, Andrea Luigi; Zanfardino, Antonella; Martini, Fabrizio; Pirozzi, Salvatore; Ubertini, Stefano

    2015-03-10

    In this paper we present a methodology to optimize the operating conditions of heating, ventilation and air conditioning (HVAC) plants to achieve a higher energy efficiency in use. Semi-empiric numerical models of the plant components are used to predict their performances as a function of their set-point and the environmental and occupied space conditions. The optimization is performed through a graph-based algorithm that finds the set-points of the system components that minimize energy consumption and/or energy costs, while matching the user energy demands. The resulting model can be used with systems of almost any complexity, featuring both HVAC components and energy systems, and is sufficiently fast to make it applicable to real-time setting.

  4. The state of HVAC in Mexico

    SciTech Connect (OSTI)

    Roberts, M.M.

    1997-07-01

    With the chartering of the Manual de Anda ASHRAE Chapter in Mexico City, the first chapter in Latin America, and with increasing cross-border trade and investment as a result of NAFTA, it`s important for US and Canadian engineers to understand the state of HVAC technology in Mexico. The goal of this article is to introduce the reader to some industry leaders in Mexico and to show their creative design and installation expertise by reviewing some recent projects.

  5. HVAC Fault Detection and Diagnosis Toolkit

    Energy Science and Technology Software Center (OSTI)

    2004-12-31

    This toolkit supports component-level model-based fault detection methods in commercial building HVAC systems. The toolbox consists of five basic modules: a parameter estimator for model calibration, a preprocessor, an AHU model simulator, a steady-state detector, and a comparator. Each of these modules and the fuzzy logic rules for fault diagnosis are described in detail. The toolbox is written in C++ and also invokes the SPARK simulation program.

  6. Building America Expert Meeting: Transitioning Traditional HVAC Contractors

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

    to Whole House Performance Contractors | Department of Energy Transitioning Traditional HVAC Contractors to Whole House Performance Contractors Building America Expert Meeting: Transitioning Traditional HVAC Contractors to Whole House Performance Contractors 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

  7. Integration of HVAC System Design with Simplified Duct Distribution -

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

    Building America Top Innovation | Department of Energy Integration of HVAC System Design with Simplified Duct Distribution - Building America Top Innovation Integration of HVAC System Design with Simplified Duct Distribution - Building America Top Innovation This photo shows framed walls and HVAC distribution systems. This Top Innovation profile describes work by Building America research team IBACOS who field tested simplified duct designs in hundreds of homes, confirming the performance of

  8. enVerid Systems - HVAC Load Reduction | Department of Energy

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

    enVerid Systems - HVAC Load Reduction enVerid Systems - HVAC Load Reduction Credit: Enverid Systems Credit: Enverid Systems Lead Performer: enVerid Systems Inc. - Houston, TX DOE Funding: $2,400,000 Cost Share: $2,400,000 Project Term: October 1, 2014 - September 30, 2017 Funding Opportunity: DE-FOA-0001084 PROJECT OBJECTIVE The objective is to install and operate modular HVAC Load Reduction (HLR) retrofits in multiple and diverse buildings, monitor their performance, analyze the energy savings

  9. Columbia Water & Light- HVAC and Lighting Efficiency Rebates

    Office of Energy Efficiency and Renewable Energy (EERE)

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

  10. Fabrication of A Quantum Well Based System for Truck HVAC

    Broader source: Energy.gov [DOE]

    Discusses performance differences between conventional modules and quantum well modules and details a conventional HZ-14 device, using bulk bismuth-telluride advantageous for truck HVAC applications.

  11. Building America Top Innovations 2014 Profile: HVAC Cabinet Air...

    Energy Savers [EERE]

    HVAC Cabinet Air Leakage Test Method (top left) Building America teams evaluated several testing methods to identify a robust, repeatable test to recommend for air leakage ...

  12. CBEI: HVAC Packages for Small and Medium Sized Commercial Buildings...

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

    CBEI: HVAC Packages for Small and Medium Sized Commercial Buildings - 2015 Peer Review Presenter: Russell Taylor, United Technologies Research Center View the Presentation CBEI: ...

  13. Unified HVAC and Refrigeration Control Systems for Small Footprint...

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

    Unified HVAC and Refrigeration Control Systems for Small Footprint Supermarkets Teja ... Approach Approach: Develop control techniques for reducing peak demand and ...

  14. Inverted Attic Bulkhead for HVAC Ductwork, Roseville, California...

    Energy Savers [EERE]

    Inverted Attic Bulkhead for HVAC Ductwork Roseville, California PROJECT INFORMATION ... bathrooms constructed in Roseville, California, for one year as an occupied test home. ...

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

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

    High-Efficiency Zonal Thermoelectric HVAC System for Automotive Applications Improving Energy Efficiency by Developing Components for Distributed Cooling and Heating Based on ...

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

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

    on Thermal Comfort Modeling Energy Efficient HVAC System for Distributed CoolingHeating with Thermoelectric Devices Improving Energy Efficiency by Developing Components for ...

  17. Research & Development Opportunities for Joining Technologies in HVAC&R

    Office of Energy Efficiency and Renewable Energy (EERE)

    This report identifies and characterizes R&D opportunities with HVAC&R joining technologies for the Building Technologies Office (BTO) to pursue.

  18. HVAC, Water Heating and Appliances Sub-Program Logic Model

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

    & water heating technologies Researchers equipped with validated solutions to develop or improve components & optimize tech. systems at reduced cost High-efficiency HVAC, water ...

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

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

    More Documents & Publications Thermoelectric HVAC for Light-Duty Vehicle Applications Thermoelectric HVAC and Thermal Comfort Enablers for Light-Duty Vehicle Applications ...

  20. Biography U. Dsterloh Degree: PD Dr.- Ing. habil. Institution...

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

    U. Dsterloh Degree: PD Dr.- Ing. habil. Institution: Clausthal University of Technology. Chair: chair for waste disposal technologies and geomechanics. 1982- 1988 field of study:...

  1. Low-Cost Electrochemical Compressor Utilizing Green Refrigerants for HVAC

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

    Applications | Department of Energy Electrochemical Compressor Utilizing Green Refrigerants for HVAC Applications Low-Cost Electrochemical Compressor Utilizing Green Refrigerants for HVAC Applications Individual electrochemical compressor cells are arranged in stacks. (Image: Cary Zachary, 2015) Individual electrochemical compressor cells are arranged in stacks. (Image: Cary Zachary, 2015) Electrochemical compressor research unit designed to test component properties. (Image: William

  2. HVAC & Building Management Control System Energy Efficiency Replacements

    SciTech Connect (OSTI)

    Hernandez, Adriana

    2012-09-21

    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.

  3. Thermoelectric HVAC for Light-Duty Vehicle Applications | Department of

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

    Energy 1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation ace047_maranville_2011_o.pdf (1.08 MB) More Documents & Publications Thermoelectric HVAC for Light-Duty Vehicle Applications Thermoelectric HVAC and Thermal Comfort Enablers for Light-Duty Vehicle Applications

  4. 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.

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

    SciTech Connect (OSTI)

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

    2004-10-14

    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.

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

    SciTech Connect (OSTI)

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

    2014-03-01

    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.

  7. Heat recovery and the economizer for HVAC systems

    SciTech Connect (OSTI)

    Anantapantula, V.S. . Alco Controls Div.); Sauer, H.J. Jr. )

    1994-11-01

    This articles examines why a combined heat reclaim/economizer system with priority to heat reclaim operation is most likely to result in the least annual total HVAC energy. PC-based, hour-by-hour simulation programs evaluate annual HVAC energy requirements when using combined operation of heat reclaim and economizer cycle, while giving priority to operation of either one. These simulation programs also enable the design engineer to select the most viable heat reclaim and/or economizer system for any given type of HVAC system serving the building internal load level, building geographical location and other building/system variables.

  8. NETL Sorbents Licensed to Help Lower Power Draw of HVAC

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

    Sorbents Licensed To Help Lower Power Draw of HVAC Success Story NETL has licensed one of its patented CO 2 - removal sorbents to Boston-based technology company enVerid Systems. enVerid has adopted the sorbent for use in their proprietary Heat Load Reduction (HLR) module, a retrofit air-recirculation system it designed to increase the energy efficiency of commercial HVAC (heating, ventilation, and air conditioning) systems. HVAC is one of the largest draws of electric power in the United

  9. SURFACE INDUSTRIAL HVAC SYSTEM DESCRIPTION DOCUMENT

    SciTech Connect (OSTI)

    M.M. Ansari

    2005-04-05

    The purpose of this system description document (SDD) is to establish requirements that drive the design of the surface industrial heating, ventilation, and air-conditioning (HVAC) system and its bases to allow the design effort to proceed to license application. This SDD will be revised at strategic points as the design matures. This SDD identifies the requirements and describes the system design, as it currently exists, with emphasis on attributes of the design provided to meet the requirements. This SDD is an engineering tool for design control; accordingly, the primary audience and users are design engineers. This SDD is part of an iterative design process. It leads the design process with regard to the flowdown of upper tier requirements onto the system. Knowledge of these requirements is essential to performing the design process. The SDD follows the design with regard to the description of the system. The description that provided in this SDD reflects the current results of the design process.

  10. Thermal model of solar absorption HVAC systems

    SciTech Connect (OSTI)

    Bergquam, J.B.; Brezner, J.M.

    1995-11-01

    This paper presents a thermal model that describes the performance of solar absorption HVAC systems. The model considers the collector array, the building cooling and heating loads, the absorption chiller and the high temperature storage. Heat losses from the storage tank and piping are included in the model. All of the results presented in the paper are for an array of flat plate solar collectors with black chrome (selective surface) absorber plates. The collector efficiency equation is used to calculate the useful heat output from the array. The storage is modeled as a non-stratified tank with polyurethane foam insulation. The system is assumed to operate continuously providing air conditioning during the cooling season, space heating during the winter and hot water throughout the year. The amount of heat required to drive the chiller is determined from the coefficient of performance of the absorption cycle. Results are presented for a typical COP of 0.7. The cooling capacity of the chiller is a function of storage (generator) temperature. The nominal value is 190 F (88 C) and the range of values considered is 180 F (82 C) to 210 F (99 C). Typical building cooling and heating loads are determined as a function of ambient conditions. Performance results are presented for Sacramento, CA and Washington, D.C. The model described in the paper makes use of National Solar Radiation Data Base (NSRDB) data and results are presented for these two locations. The uncertainties in the NSRDB are estimated to be in a range of 6% to 9%. This is a significant improvement over previously available data. The model makes it possible to predict the performance of solar HVAC systems and calculate quantities such as solar fraction, storage temperature, heat losses and parasitic power for every hour of the period for which data are available.

  11. Building America Webinar: HVAC Right-Sizing Part 1-Calculating Loads |

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

    Department of Energy 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 highlighted the key criteria required to create accurate heating and cooling load calculations. Current industry rules of thumb, perceptions and barriers to right-sizing HVAC were also discussed. webinar_hvac_calculatingloads_20110428.wmv (15.62 MB) More Documents & Publications HVAC Right-Sizing

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

    Broader source: Energy.gov [DOE]

    With financial support from a $250,000 PA Conservation Works! grant – funded through the federal Energy Efficiency and Conservation Block Grant program and the Recovery Act – CCHS purchased a new Desert-Aire HVAC system. Learn more.

  13. Strategy Guideline. Transitioning HVAC Companies to Whole House Performance Contractors

    SciTech Connect (OSTI)

    Burdick, Arlan

    2012-05-01

    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).

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

    SciTech Connect (OSTI)

    Burdick, A.

    2012-05-01

    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).

  15. Review of Residential Low-Load HVAC Systems

    SciTech Connect (OSTI)

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

    2013-09-01

    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.

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

    Office of Energy Efficiency and Renewable Energy (EERE)

    This 2014 Top Innovation describes Building America research that resulted in the development of an ASHRAE standard and standardized testing method for testing the air leakage of HVAC air handlers and furnace cabinets.

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

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

    HVAC system layout early in the design process.in order to realize the successful ... Graphic courtesy of IBACOS, Inc. A "Plug-n-Play" Air Delivery System for Low-Load ...

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

    Broader source: Energy.gov [DOE]

    Addison Elementary School and Double Springs Elementary School in northwestern Alabama were warm. Some classrooms just didn’t cool fast enough. The buildings, which were built almost 20 years ago, were in need of new HVAC units.

  19. BTO Workshop on Advanced HVAC Research Effort | Department of...

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

    Office (BTO) is exploring the launch of a major HVAC research effort in the area of low global warming potential and non-vapor compression technologies. To support this endeavor,...

  20. Building America Best Practices Series Vol. 14: Energy Renovations - HVAC:

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

    A Guide for Contractors to Share with Homeowners | Department of Energy Vol. 14: Energy Renovations - HVAC: A Guide for Contractors to Share with Homeowners Building America Best Practices Series Vol. 14: Energy Renovations - HVAC: A Guide for Contractors to Share with Homeowners This guide, which is part of a series of Best Practices guides produced by DOE's Building America program, describes ways homeowners can reduce their energy costs and improve the comfort, health, and safety of their

  1. Nationwide Limited Public Interest Waiver for LED and HVAC Units |

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

    Department of Energy Limited Public Interest Waiver for LED and HVAC Units Nationwide Limited Public Interest Waiver for LED and HVAC Units eere_nationwide_public_interest_waiver (55.98 KB) More Documents & Publications Nationwide Nonavailability Waiver: February 11, 2010 (Please note, the waiver for LED traffic signals has been withdrawn effective December 1, 2010) Nationwide Nonavailability Waiver: November 5, 2010 Amended Nationwide Nonavailability Waiver: November 5

  2. HVAC design considerations for cold climates

    SciTech Connect (OSTI)

    Armstrong, R.S. )

    1993-09-01

    The design of heating, ventilating and air-conditioning (HVAC) systems in cold climate areas requires modifications to the standard designs used in more temperate climates. While most of the US experiences freezing temperatures at least once during the winter months, certain areas experience several months of extended cold. No single location in the US experiences these extended cold conditions more than Alaska. While most areas in the continental US will not require modifications to standard design guidelines, many design modifications commonly used in the Arctic regions of Alaska and Canada can also be applied to any cold climate area in the continental US. The geographic area of Alaska is about one-third the size of the continental US. Climatic extremes range from Ketchikan with 6.697 heating degree days (at 55[degree]21 minutes N latitude) to Barrow with 20,341 heating degree days (at 71[degree]18 minutes N latitude), according to the Arctic Environmental Information and Data Center. The suggestions in this article are a compilation of general approaches the authors used to address the challenge of cold climate design. Of course, each detail design must be adapted to the specific climate and application at hand.

  3. 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

    2001-11-14

    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.

  4. R&D Opportunity Assessment: Joining Technologies in HVAC&R - Workshop on

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

    Joining Technologies in HVAC&R | Department of Energy R&D Opportunity Assessment: Joining Technologies in HVAC&R - Workshop on Joining Technologies in HVAC&R R&D Opportunity Assessment: Joining Technologies in HVAC&R - Workshop on Joining Technologies in HVAC&R Presenter: William Goetzler, Navigant Consulting On June 14, 2015, the U.S. Department of Energy organized a workshop "Joining Technologies in HVAC&R." The purpose of the meeting was for the

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

    SciTech Connect (OSTI)

    Romberger, J.

    2014-11-01

    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.

  6. HVAC, Water Heater and Appliance R&D - 2014 BTO Peer Review ...

    Energy Savers [EERE]

    HVAC, Water Heater and Appliance R&D - 2014 BTO Peer Review HVAC, Water Heater and Appliance R&D - 2014 BTO Peer Review Presenter: Tony Bouza, U.S. Department of Energy This ...

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

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

    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 ...

  8. Critical Question #4: What are the Best Off-the-Shelf HVAC Solutions...

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

    HVAC Solutions for Low-Load, High-Performance Homes and Apartments? Critical Question 4: What are the Best Off-the-Shelf HVAC Solutions for Low-Load, High-Performance Homes ...

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

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

    Test and Evaluation and CoolCalc HVAC Tool Development CoolCab Test and Evaluation and CoolCalc HVAC Tool Development 2013 DOE Hydrogen and Fuel Cells Program and Vehicle ...

  10. DOE and Stakeholders Ponder Best Approach to Major HVAC&R Research...

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

    and Stakeholders Ponder Best Approach to Major HVAC&R Research Effort DOE and Stakeholders Ponder Best Approach to Major HVAC&R Research Effort January 15, 2016 - 11:27am Addthis...

  11. 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...

  12. DOE Convening Report on Certification of Commercial HVAC and CRE Products |

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

    Department of Energy Convening Report on Certification of Commercial HVAC and CRE Products DOE Convening Report on Certification of Commercial HVAC and CRE Products This document is the convening report on the feasibility of a negotiated rulemaking to revise the certification program for commercial HVAC and CRE products published on October 2, 2012. convening_report_hvac_cre_1.pdf (1.01 MB) More Documents & Publications Lochinvar Preliminary Plan Comments Comment On:

  13. Seeking Information on Advanced HVAC&R Technologies

    Broader source: Energy.gov [DOE]

    The Building Technologies Office (BTO) released a request for information to seek feedback from the public on the technical metrics and goals, and organizational structure for a proposed advanced heating, ventilation, air conditioning, and refrigeration (HVAC&R) research and development (R&D) effort.

  14. HVAC component data modeling using industry foundation classes

    SciTech Connect (OSTI)

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

    2002-07-01

    The Industry Foundation Classes (IFC) object data model of buildings is being developed by the International Alliance for Interoperability (IAI). The aim is to support data sharing and exchange in the building and construction industry across the life-cycle of a building. This paper describes a number of aspects of a major extension of the HVAC part of the IFC data model. First is the introduction of a more generic approach for handling HVAC components. This includes type information, which corresponds to catalog data, occurrence information, which defines item-specific attributes such as location and connectivity, and performance history information, which documents the actual performance of the component instance over time. Other IFC model enhancements include an extension of the connectivity model used to specify how components forming a system can be traversed and the introduction of time-based data streams. This paper includes examples of models of particular types of HVAC components, such as boilers and actuators, with all attributes included in the definitions. The paper concludes by describing the on-going process of model testing, implementation and integration into the complete IFC model and how the model can be used by software developers to support interoperability between HVAC-oriented design and analysis tools.

  15. Unified HVAC and Refrigeration Control Systems for Small Footprint Supermarkets

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

    Unified HVAC and Refrigeration Control Systems for Small Footprint Supermarkets Teja Kuruganti, David Fugate, James Nutaro, Jibonananda Sanyal, Brian Fricke Oak Ridge National Laboratory John Wallace Emerson Climate Technologies Presented at: Technical Meeting on Software Framework for Transactive Energy: VOLTTRON 23 rd - 24 th July, 2015 2 Presentation_name Motivation and Objective * Supermarket Energy Consumption - 37,000 supermarkets in the US * 2,000,000 kWh per year per store * 1,000,000

  16. Research and Development Roadmap for Emerging HVAC Technologies

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

    Research & Development Roadmap for Emerging HVAC Technologies W. Goetzler, M. Guernsey, and J. Young October 2014 Prepared by Navigant Consulting, Inc. (This page intentionally left blank) NOTICE This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government, nor any agency thereof, nor any of their employees, nor any of their contractors, subcontractors, or their employees, makes any warranty, express or implied,

  17. Integrated high efficiency blower apparatus for HVAC systems

    DOE Patents [OSTI]

    Liu, Xiaoyue; Weigman, Herman; Wang, Shixiao

    2007-07-24

    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.

  18. CBEI: HVAC Packages for Small and Medium Sized Commercial Buildings - 2015

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

    Peer Review | Department of Energy HVAC Packages for Small and Medium Sized Commercial Buildings - 2015 Peer Review CBEI: HVAC Packages for Small and Medium Sized Commercial Buildings - 2015 Peer Review Presenter: Russell Taylor, United Technologies Research Center View the Presentation CBEI: HVAC Packages for Small and Medium Sized Commercial Buildings - 2015 Peer Review (996.29 KB) More Documents & Publications CBEI: FDD for Advanced RTUs - 2015 Peer Review CBEI: Lessons Learned from

  19. ETs HVAC, WH and Appliance R&D

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

    ET's HVAC, WH and Appliance R&D Antonio M. Bouza, DOE/BTO Technology Manager April 14-15 2015 2 Introduction Program Goals: Support BTO's goals to achieve 50 percent building energy savings * By 2020, develop technologies enabling 10 percent energy savings in HVAC; 20 percent energy savings in water heating, and 15 percent energy savings in appliances * By 2030, develop technologies enabling 25 percent energy savings in HVAC; 35 percent energy savings in water heating, and 30 percent energy

  20. Pre-Commercial Demonstration of Cost-Effective Advanced HVAC Controls -

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

    2014 BTO Peer Review | Department of Energy Pre-Commercial Demonstration of Cost-Effective Advanced HVAC Controls - 2014 BTO Peer Review Pre-Commercial Demonstration of Cost-Effective Advanced HVAC Controls - 2014 BTO Peer Review Presenter: Hayden Reeve, United Technologies Research Center Optimal control coordination of heating, ventilation, and air conditioning (HVAC) equipment can reduce energy by more than 20% over current building automation systems (BASs) but is not widely deployed due

  1. 2014-04-28 Issuance: Certification of Commercial HVAC, Water Heating, and

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

    Refrigeration Equipment; Final Rule | Department of Energy 28 Issuance: Certification of Commercial HVAC, Water Heating, and Refrigeration Equipment; Final Rule 2014-04-28 Issuance: Certification of Commercial HVAC, Water Heating, and Refrigeration Equipment; Final Rule This document is a pre-publication Federal Register final rule regarding the certification of commercial heating, ventilation, and air-conditioning (HVAC), water heating (WH), and refrigeration (CRE) equipment, as issued by

  2. DOE Zero Energy Ready Home Low Load High Efficiency HVAC Webinar (Text Version)

    Broader source: Energy.gov [DOE]

    Below is the text version of the DOE Zero Energy Ready Home webinar, Low Load High Efficiency HVAC, presented in May 2014.

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

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

    HVAC&R More Documents & Publications Research & Development Roadmap: Next-Generation Low Global Warming Potential Refrigerants Advanced Rotating Heat Exchangers Working Fluids Low...

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

    Office of Energy Efficiency and Renewable Energy (EERE)

    Identify a technical and business approach to accelerate the deployment of light-duty automotive TE HVAC technology, maintain occupant comfort, and improve energy efficiency.

  5. ZERH Webinar: Low Load HVAC and Zero Energy Ready Homes | Department...

    Office of Environmental Management (EM)

    long-term structure durability. In this webinar you will learn key HVAC design techniques and critical pitfalls to avoid when building highly energy efficient homes....

  6. Issue #3: HVAC Proper Installation Energy Savings: Over-Promising or

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

    Under-Delivering? | Department of Energy 3: HVAC Proper Installation Energy Savings: Over-Promising or Under-Delivering? Issue #3: HVAC Proper Installation Energy Savings: Over-Promising or Under-Delivering? What energy savings are realistically achievable by following quality installation standards for installation, operation, and maintenance of residential HVAC? issue3_airflow_charge.pdf (804.56 KB) issue3_hvac_installed.pdf (89.79 KB) issue3_pdi_hvacsys.pdf (325.73 KB) More Documents

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

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

    for a Hot-Humid Production Builder | Department of Energy 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 project, BSC worked with the builder to develop a cost-effective design for moving the HVAC system into conditioned space and increase the energy performance of future production houses in anticipation of 2015 IECC codes. HVAC Design Strategy for a Hot-Humid

  8. Fight Fall Allergies and Save Energy by Checking Your HVAC System

    Broader source: Energy.gov [DOE]

    Fall is a great time to do regular maintenance on your HVAC systems to ensure they're running efficiently -- and it may help your allergies as well!

  9. 1992 CBECS BC

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

    A57. Energy Conservation Features, Number of Buildings and Floorspace, 1992 Building Characteristics RSE Column Factor: Number of Buildings (thousand) Total Floorspace (million square feet) RSE Row Factor All Buildings Any Conser- vation Features Build- ing Shell HVAC Light- ing Other All Buildings Any Conser- vation Features Build- ing Shell HVAC Light- ing Other 0.8 0.8 0.8 0.9 1.0 1.9 0.8 0.9 0.9 0.9 1.2 1.7 All Buildings ................................... 4,806 4,357 4,223 2,604 1,178 264

  10. Building America … ORNL R&D: HVAC Research

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

    Building America - ORNL R&D: HVAC Research 2015 Building Technologies Office Peer Review Jeffrey Munk, munkjd@ornl.gov Oak Ridge National Laboratory Philip Boudreaux, Roderick Jackson, Wale Odukomaiya Project Summary Timeline: Start date: 10/1/2013 Planned end date: 9/30/2014 Key Milestones 1. Heating Performance Curves; 4/15/2014 2. Cooling Performance Curves; 7/15/2014 3. Final Report w/Sizing Guidelines; 2/28/2015 Budget: Total DOE $ to date: $200k Total future DOE $: $ 0 Target

  11. Thermoelectric HVAC and Thermal Comfort Enablers for Light-Duty Vehicle

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

    Applications | Department of Energy 2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting ace047_maranville_2012_o.pdf (1.03 MB) More Documents & Publications Thermoelectric HVAC for Light-Duty Vehicle Applications Improving efficiency of a vehicle HVAC system with comfort modeling, zonal design, and thermoelectric devices

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

    SciTech Connect (OSTI)

    none,

    2014-11-01

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

  13. MVC Shell

    Energy Science and Technology Software Center (OSTI)

    2008-06-03

    Provides the shell of a plugin based application environment that builds on MVC Framework to allow one to rapidly construct an application by using a collection of plugins. The MVC Shell is implemented in C# as a .NET 2.0 application that can then be used as a shell for building a plugin based application. The infrastructure allows for dynamically processing a specified collection of plugins in order to determine the functionality of the application, wheremore » all plugins operate within the context of the underlying MVC Framework environment.« less

  14. Fouling of HVAC fin and tube heat exchangers

    SciTech Connect (OSTI)

    Siegel, Jeffrey; Carey, Van P.

    2001-07-01

    Fin and tube heat exchangers are used widely in residential, commercial and industrial HVAC applications. Invariably, indoor and outdoor air contaminants foul these heat exchangers. This fouling can cause decreased capacity and efficiency of the HVAC equipment as well as indoor air quality problems related to microbiological growth. This paper describes laboratory studies to investigate the mechanisms that cause fouling. The laboratory experiments involve subjecting a 4.7 fins/cm (12 fins/inch) fin and tube heat exchanger to an air stream that contains monodisperse particles. Air velocities ranging from 1.5-5.2 m/s (295 ft/min-1024 ft/min) and particle sizes from 1--8.6 {micro}m are used. The measured fraction of particles that deposit as well as information about the location of the deposited material indicate that particles greater than about 1 {micro}m contribute to fouling. These experimental results are used to validate a scaling analysis that describes the relative importance of several deposition mechanisms including impaction, Brownian diffusion, turbophoresis, thermophoresis, diffusiophoresis, and gravitational settling. The analysis is extended to apply to different fin spacings and particle sizes typical of those found in indoor air.

  15. Q&A: FORGE-ing Ahead to Clean, Low-Cost Geothermal Energy | Department of

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

    Energy FORGE-ing Ahead to Clean, Low-Cost Geothermal Energy Q&A: FORGE-ing Ahead to Clean, Low-Cost Geothermal Energy July 17, 2014 - 2:48pm Addthis Q&A: FORGE-ing Ahead to Clean, Low-Cost Geothermal Energy Q&A: FORGE-ing Ahead to Clean, Low-Cost Geothermal Energy Q&A: FORGE-ing Ahead to Clean, Low-Cost Geothermal Energy Q&A: FORGE-ing Ahead to Clean, Low-Cost Geothermal Energy Lauren Boyd Lauren Boyd Program Manager, Enhanced Geothermal Systems (EGS) Benjamin Phillips

  16. HVAC, Water Heater and Appliance R&D - 2014 BTO Peer Review | Department of

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

    Energy Heater and Appliance R&D - 2014 BTO Peer Review HVAC, Water Heater and Appliance R&D - 2014 BTO Peer Review Presenter: Tony Bouza, U.S. Department of Energy This presentation at the 2014 Peer Review provided an overview of the Building Technologies Office's HVAC, Water Heater and Appliance R&D activities. Through robust feedback, the BTO Program Peer Review enhances existing efforts and improves future designs. View the Presentation HVAC, Water Heater and Appliance R&D

  17. Workshop 1: Advanced HVAC&R Research Effort | Department of Energy

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

    1: Advanced HVAC&R Research Effort Workshop 1: Advanced HVAC&R Research Effort The Building Technologies Office (BTO) is exploring the launch of a major HVAC&R research effort in the area of low global warming potential and non-vapor compression technologies. To support this endeavor, BTO is convening two workshops to exchange ideas on the technical focus and overall structure and approach for the effort. The first workshop was held on November 17, 2015 in conjunction with American

  18. Workshop 2: Advanced HVAC&R Research Effort | Department of Energy

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

    2: Advanced HVAC&R Research Effort Workshop 2: Advanced HVAC&R Research Effort The Building Technologies Office (BTO) is exploring the launch of a major HVAC&R research effort in the area of low global warming potential and non-vapor compression technologies. To support this endeavor, BTO convened two workshops to exchange ideas on the technical focus and overall structure and approach for the effort. The second workshop was held at the American Society of Heating, Refrigerating, and

  19. ZERH Webinar: Low Load HVAC in Zero Energy Ready Homes | Department of

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

    Energy Low Load HVAC in Zero Energy Ready Homes ZERH Webinar: Low Load HVAC in Zero Energy Ready Homes Building low-load homes creates a new set of challenges for HVAC designers and installers. Right-sizing equipment, managing ventilation, and controlling interior moisture levels are critical if you wish to: (1) deliver the energy efficiency benefits of a tight, well-insulated envelope, (2) maintain homeowner comfort and (3) ensure long-term structure durability. In this webinar you will

  20. Issue #7: What are the Best HVAC Solutions for Low-Load, High Performance

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

    Homes? | Department of Energy 7: What are the Best HVAC Solutions for Low-Load, High Performance Homes? Issue #7: What are the Best HVAC Solutions for Low-Load, High Performance Homes? What components and controls are required to implement the "perfect," cost-effective, production-level low-load space conditioning systems for all major U.S. climate regions? issue7_sensible_loadcontrol.pdf (1.05 MB) issue7.hvac_lowload.pdf (1.02 MB) issue7_combi_systems.pdf (590.15 KB)

  1. DOE ZERH Webinar: Low Load High Efficiency HVAC (Text Version) | Department

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

    of Energy Low Load High Efficiency HVAC (Text Version) DOE ZERH Webinar: Low Load High Efficiency HVAC (Text Version) Below is the text version of the DOE Zero Energy Ready Home webinar, Low Load High Efficiency HVAC, presented in May 2014. Watch the presentation. GoToWebinar voice: The broadcast is now starting. All attendees are in listen-only mode. Lindsay Parker: Hi, everyone. Welcome to the Department of Energy Zero Energy Ready Home Technical Training Webinar Series. We're really

  2. HVAC, Water Heating, and Appliance Overview — 2016 BTO Peer Review

    Broader source: Energy.gov [DOE]

    This presentation at the 2016 Peer Review provided an overview of the Building Technologies Office’s Emerging Technologies: HVAC, Water Heating, and Appliance Program. Through robust feedback, the BTO Program Peer Review enhances existing efforts and improves future designs.

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

    Energy Savers [EERE]

    potential R&D opportunities in the area of joining technologies as those ... R&D Opportunity Assessment: Joining Technologies in HVAC&R (1.51 MB) More Documents & ...

  4. Variable-Speed, Low-Cost Motor for Residential HVAC Systems ...

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

    Variable-Speed, Low-Cost Motor for Residential HVAC Systems Lower-Cost, Variable-Speed ... DynaMotors Inc., with the aid of a grant from DOE's Inventions and Innovation Program, ...

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

    SciTech Connect (OSTI)

    Burdick, Arlan

    2011-10-01

    This expert meeting was hosted by the IBACOS Building America research team to determine how HVAC companies can transition from a traditional contractor status to a service provider for whole house energy upgrade contracting.

  6. HVAC, Water Heating, and Appliance Subprogram Overview — 2016 BTO Peer Review

    Office of Energy Efficiency and Renewable Energy (EERE)

    This presentation at the 2016 Peer Review provided an overview of the Building Technologies Office’s Emerging Technologies: HVAC, Water Heating, and Appliance subprogram. Through robust feedback, the BTO Program Peer Review enhances existing efforts and improves future designs.

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

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

    ...s075lustbader2012o.pdf (3.14 MB) More Documents & Publications CoolCab Test and Evaluation CoolCab Test and Evaluation and CoolCalc HVAC Tool Development Vehicle Technologies ...

  8. Opportunities for Building America Research to Address Energy Upgrade Technical Challenges: HVAC, Envelope and IAQ (301)

    Broader source: Energy.gov [DOE]

    Better Buildings Residential Network Peer Exchange Call Series: Opportunities for Building America Research to Address Energy Upgrade Technical Challenges: HVAC, Envelope and IAQ (301), call slides and discussion summary.

  9. 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?"

  10. CBEI: Pre-commercial demonstration of cost-effective advanced HVAC controls

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

    and diagnostics for medium-sized buildings - 2015 Peer Review | Department of Energy Pre-commercial demonstration of cost-effective advanced HVAC controls and diagnostics for medium-sized buildings - 2015 Peer Review CBEI: Pre-commercial demonstration of cost-effective advanced HVAC controls and diagnostics for medium-sized buildings - 2015 Peer Review Presenter: Draguna Vrabie, United Technologies Research Center View the Presentation CBEI: Pre-commercial demonstration of cost-effective

  11. ETs HVAC, WH and Appliance R&D

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

    ET's HV!, WH and !ppliance R&D Antonio M. Bouza, DOE/BTO Technology Manager April 24-25, 2014 Introduction Program Goals: * Support BTO's goals to achieve 50 percent building energy savings * By 2020, develop technologies enabling 20 percent energy savings in HVAC; 30 percent energy savings in water heating, and 10 percent energy savings in appliances * By 2030, develop technologies enabling 40 percent energy savings in HVAC; 60 percent energy savings in water heating, and 20 percent

  12. R&D Opportunity Assessment: Joining Technologies in HVAC&R

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

    ©2015 Navigant Consulting, Inc. Stakeholder Discussion Forum R&D Opportunity Assessment: Joining Technologies in HVAC&R June 4, 2015 1 ©2015 Navigant Consulting, Inc. Project Summary and Introductions » Logistics Introductions and Logistics * Timing * Phone use * Lunch * Restrooms Navigant, on behalf of the United States Department of Energy, welcomes you to this forum on Joining Technologies in HVAC&R Breakout Session 1: * Brazing and Joining Technologies and Processes *

  13. Low-Global Warming Potential HVAC System with Ultra-Small Centrifugal

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

    Compression | Department of Energy Global Warming Potential HVAC System with Ultra-Small Centrifugal Compression Low-Global Warming Potential HVAC System with Ultra-Small Centrifugal Compression Mechanical Solutions, Inc.'s ultra-small centrifugal compressor concept will facilitate low-GWP refrigerant adoption.<br />Photo Credit: Mechanical Solutions, Inc. Mechanical Solutions, Inc.'s ultra-small centrifugal compressor concept will facilitate low-GWP refrigerant adoption. Photo Credit:

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

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

    International HVAC&R R&D Collaboration International HVAC&R R&D Collaboration Tony Bouza, chair of the International Organizing Committee for the 11th IEA Heat Pump Conference, delivers the welcoming address in Montreal. (2014) Tony Bouza, chair of the International Organizing Committee for the 11th IEA Heat Pump Conference, delivers the welcoming address in Montreal. (2014) Lead Performer: Oak Ridge National Laboratory - Oak Ridge, TN Partners: -- International Energy Agency -

  15. Progress toward Development of a High-Efficiency Zonal Thermoelectric HVAC

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

    System for Automotive Applications | Department of Energy toward Development of a High-Efficiency Zonal Thermoelectric HVAC System for Automotive Applications Progress toward Development of a High-Efficiency Zonal Thermoelectric HVAC System for Automotive Applications Presentation given at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010. deer10_maranville.pdf (598.71 KB) More Documents & Publications Thermoelectric

  16. DOE ZERH Webinar: Low Load High Efficiency HVAC | Department of Energy

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

    Low Load High Efficiency HVAC DOE ZERH Webinar: Low Load High Efficiency HVAC Watch the video or view the presentation slides below Zero Energy Ready Homes have advanced insulation and draft sealing that reduce energy consumption and enable the design and installation of an engineered comfort system that is significantly smaller than those installed in houses just 10 years ago. This webinar will discuss key issues associated with designing these systems, including the appropriate load

  17. ENERGISE-ing Solutions to Scale Up Distributed Solar | Department of Energy

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

    ENERGISE-ing Solutions to Scale Up Distributed Solar ENERGISE-ing Solutions to Scale Up Distributed Solar May 31, 2016 - 4:10pm Addthis ENERGISE-ing Solutions to Scale Up Distributed Solar Guohui Yuan Systems Integration Program Manager, SunShot Initiative Learn more about ENERGISE If a utility pole falls in a forest and no energy company employee is around to hear it, does it make a sound? Currently, the answer is no. For the most part, utility companies rely on customer calls to react to

  18. 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.

    2003-09-01

    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.

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

    SciTech Connect (OSTI)

    Lu, Ning

    2012-09-30

    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.

  20. Non-Intrusive Load Monitoring of HVAC Components using Signal Unmixing

    SciTech Connect (OSTI)

    Rahimpour, Alireza; Qi, Hairong; Fugate, David L; Kuruganti, Teja

    2015-01-01

    Heating, Ventilating and Air Conditioning units (HVAC) are a major electrical energy consumer in buildings. Monitoring of the operation and energy consumption of HVAC would increase the awareness of building owners and maintenance service providers of the condition and quality of performance of these units, enabling conditioned-based maintenance which would help achieving higher energy efficiency. In this paper, a novel non-intrusive load monitoring method based on group constrained non-negative matrix factorization is proposed for monitoring the different components of HVAC unit by only measuring the whole building aggregated power signal. At the first level of this hierarchical approach, power consumption of the building is decomposed to energy consumption of the HVAC unit and all the other electrical devices operating in the building such as lighting and plug loads. Then, the estimated power signal of the HVAC is used for estimating the power consumption profile of the HVAC major electrical loads such as compressors, condenser fans and indoor blower. Experiments conducted on real data collected from a building testbed maintained at the Oak Ridge National Laboratory (ORNL) demonstrate high accuracy on the disaggregation task.

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

    SciTech Connect (OSTI)

    Wang, Liping; Hong, Tianzhen

    2013-01-01

    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

  2. Deposition of biological aerosols on HVAC heat exchangers

    SciTech Connect (OSTI)

    Siegel, Jeffrey; Walker, Ian

    2001-09-01

    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.

  3. Packaged HVAC Unit Diagnostician version 1.0

    Energy Science and Technology Software Center (OSTI)

    2007-01-09

    The PHD automatically detects and diagnoses faults with respect to four major aspects of packaged heating, ventilating, and air conditioning (HVAC) unit operation: 1) air handling in which return-air and outdoor-air are mixed, then conditioned to appropriate temperature and humidity conditions, 2) vapor-compression refrigerant loop operation, 3) overall unit efficiency and its potential degradation over time, and 4) operation scheduling. When faults are detected, the software provides alarm codes corresponding to the detected problem(s). Thesemore » alarms map into explanations of the faults, possible causes for them, and suggested actions to remedy the faults. For air handling, the software also estimates energy and cost impacts of faults. The software is intended for implementation on a hardware systems that includes sensors, sensor signal processing, micro-processor unit for running this software, and communication to a web server. Results are made available to users via the world wide web using a computer with Web browser and Internet connection for access. The graphical web-based interface must be provided by an application service provider (not part of this software).« less

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

    Office of Energy Efficiency and Renewable Energy (EERE)

    Summarizes results from a study to identify and demonstrate technical and commercial approaches necessary to accelerate the deployment of zonal TE HVAC systems in light-duty vehicles

  5. 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.

    2011-08-29

    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.

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

    SciTech Connect (OSTI)

    none,

    2014-03-01

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

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

    SciTech Connect (OSTI)

    Bazjanac, Vladimir; Maile, Tobias

    2004-03-29

    Tedious manual input of data that define a building, its systems and its expected pattern of use and operating schedules for building energy performance simulation has in the past diverted time and resources from productive simulation runs. In addition to its previously released IFCtoIDF utility that semiautomates the import of building geometry, the new IFC HVAC interface to EnergyPlus (released at the end of 2003) makes it possible to import and export most of the data that define HVAC equipment and systems in a building directly from and to other IFC compatible software tools. This reduces the manual input of other data needed for successful simulation with EnergyPlus to a minimum. The main purpose of this new interface is to enable import of HVAC equipment and systems definitions, generated by other IFC compatible software tools (such as HVAC systems design tools) and data bases, into EnergyPlus, and to write such definitions contained in EnergyPlus input files to the original IFC files from which building geometry was extracted for the particular EnergyPlus input. In addition, this interface sets an example for developers of other software tools how to import and/or export data other than building geometry from and/or into EnergyPlus. This paper describes the necessary simplifications and shortcuts incorporated in this interface, its operating environment, interface architecture, and the basic conditions and methodology for its use with EnergyPlus.

  8. Building America Best Practices Series Volume 14 - HVAC. A Guide for Contractors to Share with Homeowners

    SciTech Connect (OSTI)

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

    2011-08-01

    This guide, which is part of a series of Best Practices guides produced by DOE’s Building America program, describes ways homeowners can reduce their energy costs and improve the comfort, health, and safety of their homes by upgrading their heating, ventilation, and air conditioning (HVAC) equipment.

  9. Energy Department Invests Nearly $8 Million to Develop Next-Generation HVAC Systems for Buildings

    Broader source: Energy.gov [DOE]

    The Energy Department today announced nearly $8 million to advance research and development of next-generation heating, ventilating, and air conditioning (HVAC) technologies, supporting the Administration's goal of saving money by saving energy, and phasing down the use of chemicals that have a devastating effect on the global climate.

  10. HVAC Equipment Design Options for Near-Zero-Energy Homes (NZEH) -A Stage 2 Scoping Assessment

    SciTech Connect (OSTI)

    Baxter, Van D

    2005-11-01

    Although the energy efficiency of heating, ventilating, and air-conditioning (HVAC) equipment has increased substantially in recent years, new approaches are needed to continue this trend. Conventional unitary equipment and system designs have matured to a point where cost-effective, dramatic efficiency improvements that meet near-zero-energy housing (NZEH) goals require a radical rethinking of opportunities to improve system performance. The large reductions in HVAC energy consumption necessary to support the NZEH goals require a systems-oriented analysis approach that characterizes each element of energy consumption, identifies alternatives, and determines the most cost-effective combination of options. In particular, HVAC equipment must be developed that addresses the range of special needs of NZEH applications in the areas of reduced HVAC and water heating energy use, humidity control, ventilation, uniform comfort, and ease of zoning. This report describes results of a scoping assessment of HVAC system options for NZEH homes. ORNL has completed a preliminary adaptation, for consideration by The U.S. Department of Energy, Energy Efficiency and Renewable Energy Office, Building Technologies (BT) Program, of Cooper's (2001) stage and gate planning process to the HVAC and Water Heating element of BT's multi-year plan, as illustrated in Figure 1. In order to adapt to R&D the Cooper process, which is focused on product development, and to keep the technology development process consistent with an appropriate role for the federal government, the number and content of the stages and gates needed to be modified. The potential federal role in technology development involves 6 stages and 7 gates, but depending on the nature and status of the concept, some or all of the responsibilities can flow to the private sector for product development beginning as early as Gate 3. In the proposed new technology development stage and gate sequence, the Stage 2 'Scoping Assessment

  11. Improving Energy Efficiency by Developing Components for Distributed Cooling and Heating Based on Thermal Comfort Modeling[Thermoelectric (TE) HVAC

    Broader source: Energy.gov [DOE]

    Discusses results from TE HVAC project to add detail to a human thermal comfort model and further allow load reduction in the climate control energy through a distributed TE network

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

    SciTech Connect (OSTI)

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

    2008-08-13

    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.

  13. Biography U. Düsterloh Degree: PD Dr.- Ing. habil. Institution: Clausthal University of Technology.

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

    U. Düsterloh Degree: PD Dr.- Ing. habil. Institution: Clausthal University of Technology. Chair: chair for waste disposal technologies and geomechanics. 1982- 1988 field of study: mining engineer 1989- 1993 PhD work - geomechanical investigations on the stability of salt caverns for waste disposal. 2009 Habilitation - proof of stability and integrity of underground excavations in saliniferous formations with special regard to lab tests. 1989 - 2012 chief engineer at Clausthal University of

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

    SciTech Connect (OSTI)

    Friedman, Hannah; Piette, Mary Ann

    2001-05-01

    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.

  15. CoolCab Test and Evaluation and CoolCalc HVAC Tool Development

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

    CoolCab Test and Evaluation & CoolCalc HVAC Tool Development Presenter and P.I.: Jason A. Lustbader National Renewable Energy Laboratory Team: Cory Kreutzer Matthew Jeffers Jeff Tomerlin Ryan Langewisch Kameron Kincade Project ID #VSS075 This presentation does not contain any proprietary, confidential, or otherwise restricted information. U.S. Department of Energy Annual Merit Review Wednesday, June 19, 2014 [1] 2 Overview Project Start Date: FY11 Project End Date: FY15 Percent Complete: 70%

  16. DOE and Stakeholders Consider Best Approach to Major HVAC&R Research Effort

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Building Technologies Office (BTO) recently convened two workshops to discuss the potential launch of a major research effort for advanced HVAC&R technologies. DOE’s goal is to develop next-generation heating and cooling technologies that leapfrog the existing vapor compression solutions and result in dramatically improved efficiency while utilizing near-zero global warming potential (GWP) refrigerants or non-vapor compression approaches.

  17. DOE and Stakeholders Ponder Best Approach to Major HVAC&R Research Effort

    Broader source: Energy.gov [DOE]

    The Building Technologies Office (BTO) recently convened two workshops to discuss the potential launch of a major research effort for advanced HVAC&R technologies. DOEs goal is to develop next-generation heating and cooling technologies that leapfrog the existing vapor compression solutions and result in dramatically improved efficiency while utilizing near-zero global warming potential (GWP) refrigerants or non-vapor compression approaches.

  18. DOE Convening Report on Certification of Commercial HVAC and CRE Products

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

    Convening Report on Certification of Commercial HVAC and CRE Products, October 2, 2012 1 U.S. DEPARTMENT OF ENERGY CONVENING REPORT ON THE FEASIBILITY OF A NEGOTIATED RULEMAKING TO REVISE THE CERTIFICATION PROGRAM FOR COMMERCIAL HEATING, VENTILATING AIR CONDITIONING AND COMMERCIAL REFRIGERATION EQUIPMENT October 2, 2012 Alan W. Strasser, Esq., MA Convener On detail to: Office of the General Counsel U.S. Department of Energy (GC-71) 1000 Independence Avenue, SW Washington, DC 20585 From: U.S.

  19. Opportunities for Building America Research to Address Energy Upgrade Technical Challenges: HVAC, Envelope & IAQ (301)

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

    Exchange Call Series: Opportunities for Building America Research to Address Energy Upgrade Technical Challenges: HVAC, Envelope & IAQ (301) July 21, 2015 Call Slides and Discussion Summary Agenda  Call Logistics and Introductions  Opening Polls  Residential Network and Peer Exchange Call Overview  Introduction to Building America Technology to Market Roadmaps  Eric Werling, Building America Program Director, DOE Building Technologies Office  Questions, Discussion, and

  20. Multiple shell fusion targets

    DOE Patents [OSTI]

    Lindl, J.D.; Bangerter, R.O.

    1975-10-31

    Multiple shell fusion targets for use with electron beam and ion beam implosion systems are described. The multiple shell targets are of the low-power type and use a separate relatively low Z, low density ablator at large radius for the outer shell, which reduces the focusing and power requirements of the implosion system while maintaining reasonable aspect ratios. The targets use a high Z, high density pusher shell placed at a much smaller radius in order to obtain an aspect ratio small enough to protect against fluid instability. Velocity multiplication between these shells further lowers the power requirements. Careful tuning of the power profile and intershell density results in a low entropy implosion which allows breakeven at low powers. For example, with ion beams as a power source, breakeven at 10-20 Terrawatts with 10 MeV alpha particles for imploding a multiple shell target can be accomplished.

  1. 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

    2002-06-01

    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

  2. Shell Solar | Open Energy Information

    Open Energy Info (EERE)

    Solar Jump to: navigation, search Name: Shell Solar Place: The Hague, Netherlands Zip: 2501 AN Sector: Solar Product: Shell Solar is developing non-crystalline PV technology,...

  3. 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

    2011-11-01

    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.

  4. Combined solar and internal load effects on selection of heat reclaim-economizer HVAC systems

    SciTech Connect (OSTI)

    Sauer, H.J. Jr.; Howell, R.H.; Wang, Z. . Dept. of Mechanical Engineering)

    1990-05-01

    The concern for energy conservation has led to the development and use of heat recovery systems which reclaim the building internal heat before it is discarded in the exhaust air. On the other hand, economizer cycles have been widely used for many years in a variety of types of HVAC systems. Economizer cycles are widely accepted as a means to reduce operating time for chilling equipment when cool outside air is available. It has been suggested that heat reclaim systems should not be used in conjunction with an HVAC system which incorporates an economizer cycle because the economizer operation would result in heat being exhausted which might have been recovered. Others suggest that the economizer cycle can be used economically in a heat recovery system if properly controlled to maintain an overall building heat balance. This study looks at potential energy savings of such combined systems with particular emphasis on the effects of the solar load (amount of glass) and the internal load level (lights, people, appliances, etc.). For systems without thermal storage, annual energy savings of up to 60 percent are predicted with the use of heat reclaim systems in conjunction with economizers when the heat reclaim has priority. These results demonstrate the necessity of complete engineering evaluations if proper selection and operation of combined heat recovery and economizer cycles are to be obtained. This paper includes the basic methodology for making such evaluations.

  5. 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

    2004-10-31

    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.

  6. 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.

    2001-10-11

    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.

  7. Learning Based Bidding Strategy for HVAC Systems in Double Auction Retail Energy Markets

    SciTech Connect (OSTI)

    Sun, Yannan; Somani, Abhishek; Carroll, Thomas E.

    2015-07-01

    In this paper, a bidding strategy is proposed using reinforcement learning for HVAC systems in a double auction market. The bidding strategy does not require a specific model-based representation of behavior, i.e., a functional form to translate indoor house temperatures into bid prices. The results from reinforcement learning based approach are compared with the HVAC bidding approach used in the AEP gridSMART® smart grid demonstration project and it is shown that the model-free (learning based) approach tracks well the results from the model-based behavior. Successful use of model-free approaches to represent device-level economic behavior may help develop similar approaches to represent behavior of more complex devices or groups of diverse devices, such as in a building. Distributed control requires an understanding of decision making processes of intelligent agents so that appropriate mechanisms may be developed to control and coordinate their responses, and model-free approaches to represent behavior will be extremely useful in that quest.

  8. Integrated Heat Pump HVAC Systems for Near-Zero-Energy Homes - Business Case Assessment

    SciTech Connect (OSTI)

    Baxter, Van D

    2007-05-01

    The long range strategic goal of the Department of Energy's Building Technologies (DOE/BT) Program is to create, by 2020, technologies and design approaches that enable the construction of net-zero energy homes at low incremental cost (DOE/BT 2005). A net zero energy home (NZEH) is a residential building with greatly reduced needs for energy through efficiency gains, with the balance of energy needs supplied by renewable technologies. While initially focused on new construction, these technologies and design approaches are intended to have application to buildings constructed before 2020 as well resulting in substantial reduction in energy use for all building types and ages. DOE/BT's Emerging Technologies (ET) team is working to support this strategic goal by identifying and developing advanced heating, ventilating, air-conditioning, and water heating (HVAC/WH) technology options applicable to NZEHs. Although the energy efficiency of heating, ventilating, and air-conditioning (HVAC) equipment has increased substantially in recent years, new approaches are needed to continue this trend. Dramatic efficiency improvements are necessary to enable progress toward the NZEH goals, and will require a radical rethinking of opportunities to improve system performance. The large reductions in HVAC energy consumption necessary to support the NZEH goals require a systems-oriented analysis approach that characterizes each element of energy consumption, identifies alternatives, and determines the most cost-effective combination of options. In particular, HVAC equipment must be developed that addresses the range of special needs of NZEH applications in the areas of reduced HVAC and water heating energy use, humidity control, ventilation, uniform comfort, and ease of zoning. In FY05 ORNL conducted an initial Stage 1 (Applied Research) scoping assessment of HVAC/WH systems options for future NZEHs to help DOE/BT identify and prioritize alternative approaches for further development

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

    SciTech Connect (OSTI)

    Not Available

    2014-03-01

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

  10. Hollow spherical shell manufacture

    DOE Patents [OSTI]

    O'Holleran, T.P.

    1991-11-26

    A process is disclosed for making a hollow spherical shell of silicate glass composition in which an aqueous suspension of silicate glass particles and an immiscible liquid blowing agent is placed within the hollow spherical cavity of a porous mold. The mold is spun to reduce effective gravity to zero and to center the blowing agent, while being heated so as to vaporize the immiscible liquid and urge the water carrier of the aqueous suspension to migrate into the body of the mold, leaving a green shell compact deposited around the mold cavity. The green shell compact is then removed from the cavity, and is sintered for a time and a temperature sufficient to form a silicate glass shell of substantially homogeneous composition and uniform geometry. 3 figures.

  11. Fabrication of metal shells

    SciTech Connect (OSTI)

    O'Holleran, T.P.; Henderson, T.M.; Downs, R.L.; Nolen, R.L.

    1980-01-01

    Small hollow metal spheres are needed as targets for particle-beam fusion experiments and as the inner fuel container for multi-shell targets. For the multishell application, shells fabricated of materials with high atomic numbers, e.g., gold, are of particular interest because they may effectively reduce preheating of the fuel. Because the shells must also contain the fuel mixture (deuterium and tritium) at high pressures, high strength materials, e.g., iron, are also of considerable interest. With the objective of proof of principle we have investigated several techniques of fabricating shells of metal or materials containing large fractions of high atomic number elements. These techniques, our experimental results and their evaluation are presented.

  12. Hollow spherical shell manufacture

    DOE Patents [OSTI]

    O'Holleran, Thomas P.

    1991-01-01

    A process for making a hollow spherical shell of silicate glass composition in which an aqueous suspension of silicate glass particles and an immiscible liquid blowing agent is placed within the hollow spherical cavity of a porous mold. The mold is spun to reduce effective gravity to zero and to center the blowing agent, while being heated so as to vaporize the immiscible liquid and urge the water carrier of the aqueous suspension to migrate into the body of the mold, leaving a green shell compact deposited around the mold cavity. The green shell compact is then removed from the cavity, and is sintered for a time and a temperature sufficient to form a silicate glass shell of substantially homogeneous composition and uniform geometry.

  13. HVAC Program

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

    New Commercial Program Development Commercial Current Promotions Industrial Federal Agriculture Heating Ventilation and Air Conditioning Energy efficient Heating Ventilation and...

  14. 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.

    1993-11-01

    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.

  15. AgrometShell | Open Energy Information

    Open Energy Info (EERE)

    User Interface: Desktop Application Website: www.hoefsloot.comagrometshell.htm Cost: Free AgrometShell Screenshot References: AgrometShell1 Logo: AgrometShell "Software for...

  16. 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)

    1980-09-01

    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)

  17. Inverted Attic Bulkhead for HVAC Ductwork, Roseville, California (Fact Sheet), Building America Case Study: Whole-House Solutions for Existing Homes, Building Technologies Office (BTO)

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

    Inverted Attic Bulkhead for HVAC Ductwork Roseville, California PROJECT INFORMATION Project Name: Long-Term Monitoring of Occupied Test House Location: Roseville, CA Partners: K. Hovnanian® Homes®, www.khov.com IBACOS www.ibacos.com Building Component: Envelope, structural, HVAC ducts Construction: New Application: New; single and/or multifamily Year Tested: 2012 Applicable Climate Zone(s): Hot-dry climate PERFORMANCE DATA HERS Index: 52 Projected Energy Savings: 11 million Btu/year heating

  18. Stability of charged thin shells

    SciTech Connect (OSTI)

    Eiroa, Ernesto F.; Simeone, Claudio

    2011-05-15

    In this article we study the mechanical stability of spherically symmetric thin shells with charge, in Einstein-Maxwell and Einstein-Born-Infeld theories. We analyze linearized perturbations preserving the symmetry, for shells around vacuum and shells surrounding noncharged black holes.

  19. Initial Business Case Analysis of Two Integrated Heat Pump HVAC Systems for Near-Zero-Energy Homes

    SciTech Connect (OSTI)

    Baxter, Van D

    2006-11-01

    The long range strategic goal of the Department of Energy's Building Technologies (DOE/BT) Program is to create, by 2020, technologies and design approaches that enable the construction of net-zero energy homes at low incremental cost (DOE/BT 2005). A net zero energy home (NZEH) is a residential building with greatly reduced needs for energy through efficiency gains, with the balance of energy needs supplied by renewable technologies. While initially focused on new construction, these technologies and design approaches are intended to have application to buildings constructed before 2020 as well resulting in substantial reduction in energy use for all building types and ages. DOE/BT's Emerging Technologies (ET) team is working to support this strategic goal by identifying and developing advanced heating, ventilating, air-conditioning, and water heating (HVAC/WH) technology options applicable to NZEHs. Although the energy efficiency of heating, ventilating, and air-conditioning (HVAC) equipment has increased substantially in recent years, new approaches are needed to continue this trend. Dramatic efficiency improvements are necessary to enable progress toward the NZEH goals, and will require a radical rethinking of opportunities to improve system performance. The large reductions in HVAC energy consumption necessary to support the NZEH goals require a systems-oriented analysis approach that characterizes each element of energy consumption, identifies alternatives, and determines the most cost-effective combination of options. In particular, HVAC equipment must be developed that addresses the range of special needs of NZEH applications in the areas of reduced HVAC and water heating energy use, humidity control, ventilation, uniform comfort, and ease of zoning. In FY05 ORNL conducted an initial Stage 1 (Applied Research) scoping assessment of HVAC/WH systems options for future NZEHs to help DOE/BT identify and prioritize alternative approaches for further development

  20. Mollusk Shell Nacre Ultrastructure Correlates with Environmental...

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

    Mollusk Shell Nacre Ultrastructure Correlates with Environmental Temperature and Pressure Mollusk Shell Nacre Ultrastructure Correlates with Environmental Temperature and Pressure...

  1. NREL Delivers In-Home HVAC Efficiency Testing Solutions (Fact Sheet), Building America: Technical Highlight, Building Technologies Program (BTP)

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

    Delivers In-Home HVAC Efficiency Testing Solutions 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 opera- tion and energy efficiency of a home's air conditioning and heating equipment. An efficiency validation method for mini-split heat pumps (MSHPs)-highly efficient refrigerant-based air conditioning and heating systems

  2. Energy Savings From System Efficiency Improvements in Iowa's HVAC SAVE Program

    SciTech Connect (OSTI)

    Yee, S.; Baker, J.; Brand, L.; Wells, J.

    2013-08-01

    The objective of this project is to explore the energy savings potential of maximizing furnace and distribution system performance by adjusting operating, installation, and distribution conditions. The goal of the Iowa HVAC System Adjusted and Verified Efficiency (SAVE) program is to train contractors to measure installed system efficiency as a diagnostic tool to ensure that the homeowner achieves the energy reduction target for the home rather than simply performing a tune-up on the furnace or having a replacement furnace added to a leaky system. The PARR research team first examined baseline energy usage from a sample of 48 existing homes, before any repairs or adjustments were made, to calculate an average energy savings potential and to determine which system deficiencies were prevalent. The results of the baseline study of these homes found that, on average, about 10% of the space heating energy available from the furnace was not reaching the conditioned space. In the second part of the project, the team examined a sample of 10 homes that had completed the initial evaluation for more in-depth study. For these homes, the diagnostic data shows that it is possible to deliver up to 23% more energy from the furnace to the conditioned space by doing system tune ups with or without upgrading the furnace. Replacing the furnace provides additional energy reduction. The results support the author's belief that residential heating and cooling equipment should be tested and improved as a system rather than a collection of individual components.

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

    SciTech Connect (OSTI)

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

    2010-07-01

    Integrated performance simulation of buildings and heating, ventilation and air-conditioning (HVAC) systems can help reducing energy consumption and increasing level of occupant comfort. However, no singe building performance simulation (BPS) tool offers sufficient capabilities and flexibilities to accommodate the ever-increasing complexity and rapid innovations in building and system technologies. One way to alleviate this problem is to use co-simulation. The co-simulation approach represents a particular case of simulation scenario where at least two simulators solve coupled differential-algebraic systems of equations and exchange data that couples these equations during the time integration. This paper elaborates on issues important for co-simulation realization and discusses multiple possibilities to justify the particular approach implemented in a co-simulation prototype. The prototype is verified and validated against the results obtained from the traditional simulation approach. It is further used in a case study for the proof-of-concept, 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 frequency. The paper concludes by defining requirements and recommendations for generic cosimulation implementations.

  4. Promoting high efficiency residential HVAC equipment: Lessons learned from leading utility programs

    SciTech Connect (OSTI)

    Neme, C.; Peters, J.; Rouleau, D.

    1998-07-01

    The Consortium for Energy Efficiency recently sponsored a study of leading electric utility efforts to promote high efficiency residential HVAC equipment. Given growing concerns from some utilities about the level of expenditures associated with rebate programs, special emphasis was placed on assessing the success of financing and other non-rebate options for promoting efficiency. Emphasis was also placed on review of efforts--rebate or otherwise--to push the market to very high levels of efficiency (i.e., SEER 13). This paper presents the results of the study. It includes discussion of key lessons from the utility programs analyzed. It also examines program participation rates and other potential indicators of market impacts. One notable conclusion is that several utility programs have pushed market shares for SEER 12 equipment to about 50% (the national average is less than 20%). At least one utility program has achieved a 50% market share for SEER 13 equipment (the national average is less than 3%). In general, financing does not appear to have as broad an appeal as consumer rebates. However, one unique utility program which combines the other of customer financing with modest incentives to contractors--in the form of frequent seller points that can be redeemed for advertising, technician training, travel and other merchandise--offers some promise that high participation rates can be achieved without customer rebates.

  5. 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

    2000-05-25

    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.

  6. Radiant heating and cooling, displacement ventilation with heat recovery and storm water cooling: An environmentally responsible HVAC system

    SciTech Connect (OSTI)

    Carpenter, S.C.; Kokko, J.P.

    1998-12-31

    This paper describes the design, operation, and performance of an HVAC system installed as part of a project to demonstrate energy efficiency and environmental responsibility in commercial buildings. The systems installed in the 2180 m{sup 2} office building provide superior air quality and thermal comfort while requiring only half the electrical energy of conventional systems primarily because of the hydronic heating and cooling system. Gas use for the building is higher than expected because of longer operating hours and poor performance of the boiler/absorption chiller.

  7. Foam shell cryogenic ICF target

    DOE Patents [OSTI]

    Darling, Dale H.

    1987-01-01

    A uniform cryogenic layer of DT fuel is maintained in a fusion target having a low density, small pore size, low Z rigid foam shell saturated with liquid DT fuel. Capillary action prevents gravitational slumping of the fuel layer. The saturated shell may be cooled to produce a solid fuel layer.

  8. Shell Solar India | Open Energy Information

    Open Energy Info (EERE)

    India Jump to: navigation, search Name: Shell Solar India Place: India Sector: Solar Product: Shell Solar India was created as Shell's solar energy business in India, but has been...

  9. Cosan Shell JV | Open Energy Information

    Open Energy Info (EERE)

    search Name: Cosan & Shell JV Place: Brazil Product: Brazil-based bioethanol manufacturing joint venture. References: Cosan & Shell JV1 This article is a stub. You can...

  10. An evaluation of three commercially available technologies forreal-time measurement of rates of outdoor airflow into HVAC systems

    SciTech Connect (OSTI)

    Fisk, William J.; Faulkner, David; Sullivan, Douglas P.

    2004-10-28

    During the last few years, new technologies have been introduced for real-time continuous measurement of the flow rates of outdoor air (OA) into HVAC systems; however, an evaluation of these measurements technologies has not previously been published. This document describes a test system and protocols developed for a controlled evaluation of these measurement technologies. The results of tests of three commercially available measurement technologies are also summarized. The test system and protocol were judged practical and very useful. The three commercially available measurement technologies should provide reasonably, e.g., 20%, accurate measurements of OA flow rates as long as air velocities are maintained high enough to produce accurately measurable pressure signals. In HVAC systems with economizer controls, to maintain the required air velocities the OA intake will need to be divided into two sections in parallel, each with a separate OA damper. All of the measurement devices had pressure drops that are likely to be judged acceptable. The influence of wind on the accuracy of these measurement technologies still needs to be evaluated.

  11. An evaluation of technologies for real-time measurement of rates of outdoor airflow into HVAC systems

    SciTech Connect (OSTI)

    Fisk, William J.; Faulkner, David; Sullivan, Douglas P.

    2004-09-01

    During the last few years, new technologies have been introduced for real-time continuous measurement of the flow rates of outdoor air (OA) into HVAC systems; however, an evaluation of these measurement technologies has not previously been published. This document describes a test system and protocols developed for a controlled evaluation of these measurement technologies. The results of tests of four commercially available measurement technologies and one prototype based on a new design are also summarized. The test system and protocol were judged practical and very useful. The series of tests identified three commercially available measurement technologies that should provide reasonably accurate measurements of OA flow rates as long as air velocities are maintained high enough to produce accurately measurable pressure signals. In HVAC systems with economizer controls, to maintain the required air velocities the OA intake will need to be divided into two sections in parallel, each with a separate OA damper. The errors in OA flow rates measured with the fourth commercially available measurement technology were 20% to 30% with horizontal probes but much larger with vertical probes. The new prototype measurement technology was the only one that appears suitable for measuring OA flow rates over their full range from 20% OA to 100% OA without using two separate OA dampers. All of the measurement devices had pressure drops that are likely to be judged acceptable. The influence of wind on the accuracy of these measurement technologies still needs to be evaluated.

  12. Optimum rotationally symmetric shells for flywheel rotors

    DOE Patents [OSTI]

    Blake, Henry W.

    2000-01-01

    A flywheel rim support formed from two shell halves. Each of the shell halves has a disc connected to the central shaft. A first shell element connects to the disc at an interface. A second shell element connects to the first shell element. The second shell element has a plurality of meridional slits. A cylindrical shell element connects to the second shell element. The cylindrical shell element connects to the inner surface of the flywheel rim. A flywheel rim support having a disc connected an outer diameter of a shaft. Two optimally shaped shell elements connect to the optimally shaped disc at an interface. The interface defines a discontinuity in a meridional slope of said support. A cylindrical shell element connects to the two shell elements. The cylindrical shell element has an outer surface for connecting to the inner surface of the flywheel rim. A flywheel rim casing includes an annular shell connected to the central shaft. The annular shell connects to the flywheel rim. A composite shell surrounds the shaft, annular shell and flywheel rim.

  13. Insulative laser shell coupler

    DOE Patents [OSTI]

    Arnold, P.A.; Anderson, A.T.; Alger, T.W.

    1994-09-20

    A segmented coaxial laser shell assembly having at least two water jacket sections, two pairs of interconnection half rings, a dielectric break ring, and a pair of threaded ring sections is disclosed. Each water jacket section with an inner tubular section that defines an inner laser cavity with water paths adjacent to at least a portion of the exterior of the inner tubular section, and mating faces at the end of the water jacket section through which the inner laser cavity opens and which defines at least one water port therethrough in communication with the water jackets. The water paths also define in their external surface a circumferential notch set back from and in close proximity to the mating face. The dielectric break ring has selected thickness and is placed between, and in coaxial alignment with, the mating faces of two of the adjacent water jacket sections. The break ring also defines an inner laser cavity of the same size and shape as the inner laser cavity of the water jacket sections and at least one water passage through the break ring to communicate with at least one water port through the mating faces of the water jacket sections. 4 figs.

  14. Insulative laser shell coupler

    DOE Patents [OSTI]

    Arnold, Phillip A.; Anderson, Andrew T.; Alger, Terry W.

    1994-01-01

    A segmented coaxial laser shell assembly having at least two water jacket sections, two pairs of interconnection half rings, a dialectric break ring, and a pair of threaded ring sections. Each water jacket section with an inner tubular section that defines an inner laser cavity with water paths adjacent to at least a portion of the exterior of the inner tubular section, and mating faces at the end of the water jacket section through which the inner laser cavity opens and which defines at least one water port therethrough in communication with the water jackets. The water paths also define in their external surface a circumferential notch set back from and in close proximity to the mating face. The dielectric break ring has selected thickness and is placed between, and in coaxial alignment with, the mating faces of two of the adjacent water jacket sections. The break ring also defines an inner laser cavity of the same size and shape as the inner laser cavity of the water jacket sections and at least one water passage through the break ring to communicate with at least one water port through the mating faces of the water jacket sections.

  15. 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.; Rymkevich, A.A.

    1998-12-31

    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.

  16. 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

    2014-07-01

    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.

  17. Shell Solar GmbH formerly Siemens und Shell Solar GmbH | Open...

    Open Energy Info (EERE)

    GmbH formerly Siemens und Shell Solar GmbH Jump to: navigation, search Name: Shell Solar GmbH (formerly Siemens und Shell Solar GmbH) Place: Munich, Bavaria, Germany Zip: 80807...

  18. 1999 Commercial Buildings Characteristics--Building Shell and...

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

    & Practices > Building Shell & Lighting Conservation Features Building Shell and Lighting Conservation Features The 1999 CBECS collected information on two types of building shell...

  19. On Closed Shells in Nuclei

    DOE R&D Accomplishments [OSTI]

    Mayer, M. G.

    1948-02-01

    It has been suggested in the past that special numbers of neutrons or protons in the nucleus form a particularly stable configuration.{sup1} The complete evidence for this has never been summarized, nor is it generally recognized how convincing this evidence is. That 20 neutrons or protons (Ca{sup40}) form a closed shell is predicted by the Hartree model. A number of calculations support this fact.{sup2} These considerations will not be repeated here. In this paper, the experimental facts indicating a particular stability of shells of 50 and 82 protons and of 50, 82, and 126 neutrons will be listed.

  20. The Shell-Model Code NuShellX@MSU

    SciTech Connect (OSTI)

    Brown, B.A.; Rae, W.D.M.

    2014-06-15

    Use of the code NuShellX@MSU is outlined. It connects to the ENSDF data files for automatic comparisons to energy level data. Operator overlaps provide predictions for spectroscopic factors, two-nucleon transfer amplitudes, nuclear moments, gamma decay and beta decay.

  1. Material development in the SI sub 3 N sub 4 system using glass encapsulated Hip'ing

    SciTech Connect (OSTI)

    Corbin, N.D.; Sundberg, G.J.; Siebein, K.N.; Willkens, C.A.; Pujari, V.K.; Rossi, G.A.; Hansen, J.S.; Chang, C.L.; Hammarstrom, J.L.

    1992-04-01

    This report covers a two-year program to develop fully dense Si{sub 3}N{sub 4} matrix SiC whisker composites with enhanced properties over monolithic Si{sub 3}N{sub 4} materials. The primary goal was to develop a composite with a fracture toughness > 10 MPa{radical}m, capable of using high pressure glass encapsulated HIP'ing. Coating methods were developed to apply thin (<150nm) stoichiometric BN layers to SiC whiskers and also to apply a dual coating of SiC over carbon to the whiskers. Fracture toughness of the composites was determined to increase as the quantity of whiskers (or elongated grains) with their axis perpendicular to the crack plane increased. Of the interface compositions evaluated in this effort, carbon was determined to be the most effective for increasing toughness. The highest toughnesses (6.8--7.0 MPa{radical}m) were obtained with uniaxially aligned carbon coated whiskers. There was no evidence of the carbon coating compromising the oxidation resistance of the composites at 1370{degree}C.

  2. Shell structures for biogas plants

    SciTech Connect (OSTI)

    Sasse, L.

    1982-01-01

    The shell structures designed for biogas plants of the fixed-dome type by the Bremen Overseas Research and Development Association are described. Biogas digesters of the design described have been successfully tested in Rwanda and India without structural or contractural problems.

  3. Chapter 19: HVAC Controls (DDC/EMS/BAS) Evaluation Protocol. The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures: September 2011 … December 2014

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

    9: HVAC Controls (DDC/EMS/BAS) Evaluation Protocol The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures Created as part of subcontract with period of performance September 2011 - December 2014 Jeff Romberger SBW Consulting, Inc. Bellevue, Washington NREL Technical Monitor: Charles Kurnik Subcontract Report NREL/SR-7A40-63167 November 2014 NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency & Renewable

  4. Turbine blade with spar and shell

    SciTech Connect (OSTI)

    Davies, Daniel O.; Peterson, Ross H.

    2012-04-24

    A turbine blade with a spar and shell construction in which the spar and the shell are both secured within two platform halves. The spar and the shell each include outward extending ledges on the bottom ends that fit within grooves formed on the inner sides of the platform halves to secure the spar and the shell against radial movement when the two platform halves are joined. The shell is also secured to the spar by hooks extending from the shell that slide into grooves formed on the outer surface of the spar. The hooks form a serpentine flow cooling passage between the shell and the spar. The spar includes cooling holes on the lower end in the leading edge region to discharge cooling air supplied through the platform root and into the leading edge cooling channel.

  5. The shell coal gasification process

    SciTech Connect (OSTI)

    Koenders, L.O.M.; Zuideveld, P.O.

    1995-12-01

    Future Integrated Coal Gasification Combined Cycle (ICGCC) power plants will have superior environmental performance and efficiency. The Shell Coal Gasification Process (SCGP) is a clean coal technology, which can convert a wide range of coals into clean syngas for high efficiency electricity generation in an ICGCC plant. SCGP flexibility has been demonstrated for high-rank bituminous coals to low rank lignites and petroleum coke, and the process is well suited for combined cycle power generation, resulting in efficiencies of 42 to 46% (LHV), depending on choice of coal and gas turbine efficiency. In the Netherlands, a 250 MWe coal gasification combined cycle plant based on Shell technology has been built by Demkolec, a development partnership of the Dutch Electricity Generating Board (N.V. Sep). The construction of the unit was completed end 1993 and is now followed by start-up and a 3 year demonstration period, after that the plant will be part of the Dutch electricity generating system.

  6. Shell boosts recovery at Kernridge

    SciTech Connect (OSTI)

    Moore, S.

    1984-01-01

    Since acquiring the Kernridge property in December 1979, Shell Oil Co. has drilled more than 1,800 wells and steadily increased production from 42,000 to 89,000 b/d of oil. Currently, the Kernridge Production Division of Shell California Production Inc. (SCPI), a newly formed subsidiary of Shell Oil Co., is operator for the property. The property covers approximately 35,000 mostly contiguous net acres, with production concentrated mainly on about 5,500 net acres. SCPI's four major fields in the area are the North and South Belridge, Lost Hills, and Antelope Hills. Most of the production comes from the North and South Belridge fields, which were previously held by the Belridge Oil Co. Productive horizons in the fields are the Tulare, Diatomite, Brown Shale, Antelope Shale, 64 Zone, and Agua sand. The Tulare and Diatomite are the two major reservoirs SCPI is developing. The Tulare, encountered between 400 and 1,300 ft, is made up of fine- to coarse-grained, unconsolidated sands with interbedded shales and silt stones and contains 13 /sup 0/ API oil. Using steam drive as the main recovery method, SCPI estimates an ultimate recovery from the Tulare formation of about 60% of the original 1 billion barrels in place. The Diatomite horizon, found between 800 and 3,500 ft and containing light, 28 /sup 0/ API oil, has high porosity (more than 60%), low permeability (less than 1 md), and natural fractures. Because of the Diatomite's low permeability, fracture stimulation is being used to increase well productivity. SCPI anticipates that approximately 5% of the almost 2 billion barrels of oil originally in place will be recovered by primary production.

  7. Application of real time transient temperature (RT{sup 3}) program on nuclear power plant HVAC analysis

    SciTech Connect (OSTI)

    Cai, Y.; Tomlins, V.A.; Haskell, N.L.; Giffels, F.W.

    1996-08-01

    A database oriented technical analysis program (RT) utilizing a lumped parameter model combined with a finite difference method was developed to concurrently simulate transient temperatures in single or multiple room(s)/area(s). Analyses can be seen for postulated design basis events, such as, 10CFR50 Appendix-R, Loss of Coolant Accident concurrent with Loss of Offsite Power (LOCA/LOOP), Station BlackOut (SBO), and normal station operating conditions. The rate of change of the air temperatures is calculated by explicitly solving a series of energy balance equations with heat sources and sinks that have been described. For building elements with heat absorbing capacity, an explicit Forward Time Central Space (FTCS) model of one dimensional transient heat conduction in a plane element is used to describe the element temperature profile. Heat migration among the rooms/areas is considered not only by means of conduction but also by means of natural convection induced by temperature differences through openings between rooms/areas. The program also provides a means to evaluate existing plant HVAC system performance. The performance and temperature control of local coolers/heaters can be also simulated. The program was used to calculate transient temperature profiles for several buildings and rooms housing safety-related electrical components in PWR and BWR nuclear power plants. Results for a turbine building and reactor building in a BWR nuclear power plant are provided here. Specific calculational areas were defined on the basis of elevation, physical barriers and components/systems. Transient temperature profiles were then determined for the bounding design basis events with winter and summer outdoor air temperatures.

  8. Boson shells harboring charged black holes

    SciTech Connect (OSTI)

    Kleihaus, Burkhard; Kunz, Jutta; Laemmerzahl, Claus; List, Meike

    2010-11-15

    We consider boson shells in scalar electrodynamics coupled to Einstein gravity. The interior of the shells can be empty space, or harbor a black hole or a naked singularity. We analyze the properties of these types of solutions and determine their domains of existence. We investigate the energy conditions and present mass formulae for the composite black hole-boson shell systems. We demonstrate that these types of solutions violate black hole uniqueness.

  9. Shell India Pvt Ltd | Open Energy Information

    Open Energy Info (EERE)

    Services, Solar Product: Delhi-based subsidiary of Royal Dutch Shell having interests in natural gas (LNG), liquefied petroleum gas (LPG), lubricants and bitumen. The firm also...

  10. Single-Shell Tank Evaluations - Hanford Site

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

    Single-Shell Tank Evaluations Documents Documents Hanford Site Cleanup Completion Framework Tri-Party Agreement Freedom of Information and Privacy Act Hanford Site Budget Hanford...

  11. Material with core-shell structure

    DOE Patents [OSTI]

    Luhrs, Claudia; Richard, Monique N.; Dehne, Aaron; Phillips, Jonathan; Stamm, Kimber L.; Fanson, Paul T.

    2011-11-15

    Disclosed is a material having a composite particle, the composite particle including an outer shell and a core. The core is made from a lithium alloying material and the outer shell has an inner volume that is greater in size than the core of the lithium alloying material. In some instances, the outer mean diameter of the outer shell is less than 500 nanometers and the core occupies between 5 and 99% of the inner volume. In addition, the outer shell can have an average wall thickness of less than 100 nanometers.

  12. Shell appraising deepwater discovery off Philippines

    SciTech Connect (OSTI)

    Scherer, M. ); Lambers, E.J.T.; Steffens, G.S. )

    1993-05-10

    Shell International Petroleum Co. Ltd. negotiated a farmout in 1990 from Occidental International Exploration and Production Co. for Block SC-38 in the South China Sea off Palawan, Philippines, following Oxy's discovery of gas in 1989 in a Miocene Nido limestone buildup. Under the terms of the farmout agreement, Shell became operator with a 50% share. Following the disappointing well North Iloc 1, Shell was successful in finding oil and gas in Malampaya 1. Water 700-1,000 m deep, remoteness, and adverse weather conditions have imposed major challenges for offshore operations. The paper describes the tectonic setting; the Nido limestone play; the Malampaya discovery; and Shell's appraisal studies.

  13. An Evaluation of Shell GTL Diesel | Department of Energy

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

    An Evaluation of Shell GTL Diesel An Evaluation of Shell GTL Diesel 2002_deer_clark.pdf (425.23 KB) More Documents & Publications Assessment of Environmental Impacts of Shell GTL Fuel Shell Gas to Liquids in the context of a Future Fuel Strategy - Technical Marketing Aspects Verification of Shell GTL Fuel as CARB Alternative Diesel

  14. 2014-12-22 Issuance: Alternative Efficiency Determination Methods, Basic Model Definition, and Compliance for Commercial HVAC, Refrigeration, and Water Heating Equipment; Final Rule

    Broader source: Energy.gov [DOE]

    This document is a pre-publication Federal Register final rule regarding alternative efficiency determination methods, basic model definition, and compliance for commercial HVAC, refrigeration, and water heating equipment , as issued by the Deputy Assistant Secretary for Energy Efficiency on December 22, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

  15. Apparatus and methods for installing, removing and adjusting an inner turbine shell section relative to an outer turbine shell section

    DOE Patents [OSTI]

    Leach, David; Bergendahl, Peter Allen; Waldo, Stuart Forrest; Smith, Robert Leroy; Phelps, Robert Kim

    2001-01-01

    A turbine includes upper and lower inner shell sections mounting the nozzles and shrouds and which inner shell is supported by pins secured to a surrounding outer shell. To disassemble the turbine for access to the inner shell sections and rotor, an alignment fixture is secured to the lower outer shell section and has pins engaging the inner shell section. To disassemble the turbine, the inner shell weight is transferred to the lower outer shell section via the alignment fixture and cradle pins. Roller assemblies are inserted through access openings vacated by support pins to permit rotation of the lower inner shell section out of and into the lower outer shell section during disassembly and assembly. The alignment fixture includes adjusting rods for adjusting the inner shell axially, vertically, laterally and about a lateral axis. A roller over-cage is provided to rotate the inner shell and a dummy shell to facilitate assembly and disassembly in the field.

  16. Thick-shell nanocrystal quantum dots

    SciTech Connect (OSTI)

    Hollingsworth, Jennifer A.; Chen, Yongfen; Klimov, Victor I.; Htoon, Han; Vela, Javier

    2011-05-03

    Colloidal nanocrystal quantum dots comprising an inner core having an average diameter of at least 1.5 nm and an outer shell, where said outer shell comprises multiple monolayers, wherein at least 30% of the quantum dots have an on-time fraction of 0.80 or greater under continuous excitation conditions for a period of time of at least 10 minutes.

  17. Multimetallic Core/Interlayer/Shell Nanostructures as Advanced...

    Office of Scientific and Technical Information (OSTI)

    Multimetallic CoreInterlayerShell Nanostructures as Advanced Electrocatalysts Citation Details In-Document Search Title: Multimetallic CoreInterlayerShell Nanostructures as ...

  18. Wireless Infrastructure for Performing Monitoring, Diagnostics, and Control HVAC and Other Energy-Using Systems in Small Commercial Buildings

    SciTech Connect (OSTI)

    Patrick O'Neill

    2009-06-30

    This project focused on developing a low-cost wireless infrastructure for monitoring, diagnosing, and controlling building systems and equipment. End users receive information via the Internet and need only a web browser and Internet connection. The system used wireless communications for: (1) collecting data centrally on site from many wireless sensors installed on building equipment, (2) transmitting control signals to actuators and (3) transmitting data to an offsite network operations center where it is processed and made available to clients on the Web (see Figure 1). Although this wireless infrastructure can be applied to any building system, it was tested on two representative applications: (1) monitoring and diagnostics for packaged rooftop HVAC units used widely on small commercial buildings and (2) continuous diagnosis and control of scheduling errors such as lights and equipment left on during unoccupied hours. This project developed a generic infrastructure for performance monitoring, diagnostics, and control, applicable to a broad range of building systems and equipment, but targeted specifically to small to medium commercial buildings (an underserved market segment). The proposed solution is based on two wireless technologies. The first, wireless telemetry, is used for cell phones and paging and is reliable and widely available. This risk proved to be easily managed during the project. The second technology is on-site wireless communication for acquiring data from sensors and transmitting control signals. The technology must enable communication with many nodes, overcome physical obstructions, operate in environments with other electrical equipment, support operation with on-board power (instead of line power) for some applications, operate at low transmission power in license-free radio bands, and be low cost. We proposed wireless mesh networking to meet these needs. This technology is relatively new and has been applied only in research and tests

  19. HVAC Equipment Rebate Program

    Broader source: Energy.gov [DOE]

    NOTE: As of January 1, 2016, rebates for unitary air conditioning and split systems and integrated dual enthalpy economizer controls are no longer available.

  20. Higher Efficiency HVAC Motors

    Broader source: Energy.gov [DOE]

    Lead Performer: QM Power, Inc. – Lee’s Summit, MOPartners: United Technologies Research Center – East Hartford, CT

  1. HVAC Performance Maps

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

    Creating generalized and product-specific model inputs 3. Identifying product improvement ... delivered capacity in a whole-building context, across varying climates and conditions. ...

  2. Sensitivity and Uncertainty Analysis Shell

    Energy Science and Technology Software Center (OSTI)

    1999-04-20

    SUNS (Sensitivity and Uncertainty Analysis Shell) is a 32-bit application that runs under Windows 95/98 and Windows NT. It is designed to aid in statistical analyses for a broad range of applications. The class of problems for which SUNS is suitable is generally defined by two requirements: 1. A computer code is developed or acquired that models some processes for which input is uncertain and the user is interested in statistical analysis of the outputmore » of that code. 2. The statistical analysis of interest can be accomplished using the Monte Carlo analysis. The implementation then requires that the user identify which input to the process model is to be manipulated for statistical analysis. With this information, the changes required to loosely couple SUNS with the process model can be completed. SUNS is then used to generate the required statistical sample and the user-supplied process model analyses the sample. The SUNS post processor displays statistical results from any existing file that contains sampled input and output values.« less

  3. Nuclear Quadrupole Moments and Nuclear Shell Structure

    DOE R&D Accomplishments [OSTI]

    Townes, C. H.; Foley, H. M.; Low, W.

    1950-06-23

    Describes a simple model, based on nuclear shell considerations, which leads to the proper behavior of known nuclear quadrupole moments, although predictions of the magnitudes of some quadrupole moments are seriously in error.

  4. Wireless energy transfer between anisotropic metamaterials shells

    SciTech Connect (OSTI)

    Daz-Rubio, Ana; Carbonell, Jorge; Snchez-Dehesa, Jos

    2014-06-15

    The behavior of strongly coupled Radial Photonic Crystals shells is investigated as a potential alternative to transfer electromagnetic energy wirelessly. These sub-wavelength resonant microstructures, which are based on anisotropic metamaterials, can produce efficient coupling phenomena due to their high quality factor. A configuration of selected constitutive parameters (permittivity and permeability) is analyzed in terms of its resonant characteristics. The coupling to loss ratio between two coupled resonators is calculated as a function of distance, the maximum (in excess of 300) is obtained when the shells are separated by three times their radius. Under practical conditions an 83% of maximum power transfer has been also estimated. -- Highlights: Anisotropic metamaterial shells exhibit high quality factors and sub-wavelength size. Exchange of electromagnetic energy between shells with high efficiency is analyzed. Strong coupling is supported with high wireless transfer efficiency. End-to-end energy transfer efficiencies higher than 83% can be predicted.

  5. Double shell tank waste analysis plan

    SciTech Connect (OSTI)

    Mulkey, C.H.; Jones, J.M.

    1994-12-15

    Waste analysis plan for the double shell tanks. SD-WM-EV-053 is Superseding SD-WM-EV-057.This document provides the plan for obtaining information needed for the safe waste handling and storage of waste in the Double Shell Tank Systems. In Particular it addresses analysis necessary to manage waste according to Washington Administrative Code 173-303 and Title 40, parts 264 and 265 of the Code of Federal Regulations.

  6. Trapping of intense light in hollow shell

    SciTech Connect (OSTI)

    Luan, Shixia; Yu, Wei; Yu, M. Y.; Weng, Suming; Wang, Jingwei; Xu, Han; Zhuo, Hongbin; Wong, A. Y.

    2015-09-15

    A small hollow shell for trapping laser light is proposed. Two-dimensional particle-in-cell simulation shows that under appropriate laser and plasma conditions a part of the radiation fields of an intense short laser pulse can enter the cavity of a small shell through an over-critical density plasma in an adjacent guide channel and become trapped. The trapped light evolves into a circulating radial wave pattern until its energy is dissipated.

  7. Rigorous HDD Emissions Capabilities of Shell GTL Fuel | Department of

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

    Energy Rigorous HDD Emissions Capabilities of Shell GTL Fuel Rigorous HDD Emissions Capabilities of Shell GTL Fuel 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters 2005_deer_cherillo.pdf (161.16 KB) More Documents & Publications Verification of Shell GTL Fuel as CARB Alternative Diesel Assessment of Environmental Impacts of Shell GTL Fuel An Evaluation of Shell GTL Diesel

  8. Initial Business Case Analysis of Two Integrated Heat Pump HVAC Systems for Near-Zero-Energy Homes - Update to Include Evaluation of Impact of Including a Humidifier Option

    SciTech Connect (OSTI)

    Baxter, Van D

    2007-02-01

    The long range strategic goal of the Department of Energy's Building Technologies (DOE/BT) Program is to create, by 2020, technologies and design approaches that enable the construction of net-zero energy homes at low incremental cost (DOE/BT 2005). A net zero energy home (NZEH) is a residential building with greatly reduced needs for energy through efficiency gains, with the balance of energy needs supplied by renewable technologies. While initially focused on new construction, these technologies and design approaches are intended to have application to buildings constructed before 2020 as well resulting in substantial reduction in energy use for all building types and ages. DOE/BT's Emerging Technologies (ET) team is working to support this strategic goal by identifying and developing advanced heating, ventilating, air-conditioning, and water heating (HVAC/WH) technology options applicable to NZEHs. In FY05 ORNL conducted an initial Stage 1 (Applied Research) scoping assessment of HVAC/WH systems options for future NZEHs to help DOE/BT identify and prioritize alternative approaches for further development. Eleven system concepts with central air distribution ducting and nine multi-zone systems were selected and their annual and peak demand performance estimated for five locations: Atlanta (mixed-humid), Houston (hot-humid), Phoenix (hot-dry), San Francisco (marine), and Chicago (cold). Performance was estimated by simulating the systems using the TRNSYS simulation engine (Solar Energy Laboratory et al. 2006) in two 1800-ft{sup 2} houses--a Building America (BA) benchmark house and a prototype NZEH taken from BEopt results at the take-off (or crossover) point (i.e., a house incorporating those design features such that further progress towards ZEH is through the addition of photovoltaic power sources, as determined by current BEopt analyses conducted by NREL). Results were summarized in a project report, HVAC Equipment Design options for Near-Zero-Energy Homes

  9. Elastoplastic shell analysis in DYNA3D

    SciTech Connect (OSTI)

    Whirley, R.G. )

    1991-01-01

    Computer simulation of the elastoplastic behavior of thin shell structures under transient dynamic loads play an important role in many programs at Lawrence Livermore National Laboratory (LLNL) in Livermore, Calif. Often the loads are severe and the structure undergoes plastic (or permanent) deformation. These simulations are effectively performed using DYNA3D, an explicit nonlinear finite element code developed at LLNL for simulating and analyzing the large-deformation dynamic response of solids and structures. It is generally applicable to problems where the loading and response are of short duration and contain significant high-frequency components. Typical problems of this type include the contact of two impacting bodies and the resulting elastoplastic structural behavior. The objective of this investigation was to examine and improve upon the elastoplastic shell modeling capability in DYNA3D. This article summarizes the development of a new four-node quadrilateral finite element shell formulation, the YASE shell, and compares two basic methods (the stress-resultant and the thickness-resultant methods) employed in elastoplastic constitutive algorithms for shell structure modeling.

  10. Removable inner turbine shell with bucket tip clearance control

    DOE Patents [OSTI]

    Sexton, Brendan F.; Knuijt, Hans M.; Eldrid, Sacheverel Q.; Myers, Albert; Coneybeer, Kyle E.; Johnson, David Martin; Kellock, Iain R.

    2000-01-01

    A turbine includes a plurality of inner shell sections mounting first and second stage nozzle and shroud portions. The inner shell sections are pinned to an outer containment shell formed of sections to preclude circumferential movement of the inner shell relative to the outer shell and enable thermal expansion and contraction of the inner shell relative to the outer shell. Positive bucket tip clearance control is afforded by passing a thermal medium about the inner shell in heat transfer relation with the shrouds about the first and second stage bucket tips, the thermal medium being provided from a source of heating/cooling fluid independent of the turbine. Access is provided to the rotor and turbine buckets by removing the outer and inner shell sections.

  11. The microindentation behavior of several mollusk shells

    SciTech Connect (OSTI)

    Laraia, V.J.; Heuer, A.H. . Dept. of Materials Science and Engineering)

    1990-01-01

    An investigation of the relationship between structure and mechanical behavior is reported for mollusk shells employing foliated, nacreous, and crossed-lamellar structures by microindentation in the Knoop and Vickers geometries. Indentation damage zones develop crack systems that reflect the micro-architecture. For the crosed-lamellar structure, the system of cracks about the indentation normally developed in a brittle material is suppressed. Previous reports that shells are harder than the corresponding minerals, calcite and aragonite, are confirmed, but it is found that this effect can be strongly dependent on orientation. This anomalous hardness is not an artifact of the indentation test technique, since scratch tests confirm the relative hardness of shell over the mineral. It is suggested that microstructural organization is of central importance in producing this hardness, as opposed to intrinsic properties of the mineral or matrix phases. 17 refs., 6 figs., 1 tab.

  12. Inner shell radial pin geometry and mounting arrangement

    DOE Patents [OSTI]

    Leach, David; Bergendahl, Peter Allen

    2002-01-01

    Circumferentially spaced arrays of support pins are disposed through access openings in an outer turbine shell and have projections received in recesses in forward and aft sections of an inner turbine shell supported from the outer shell. The projections have arcuate sides in a circumferential direction affording line contacts with the side walls of the recesses and are spaced from end faces of the recesses, enabling radial and axial expansion and contraction of the inner shell relative to the outer shell. All loads are taken up in a tangential direction by the outer shell with the support pins taking no radial loadings.

  13. Working and Net Available Shell Storage Capacity

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

    Working and Net Available Shell Storage Capacity May 2016 With Data as of March 31, 2016 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration | Working and Net Available Shell Storage Capacity as of March 31, 2016 This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are

  14. HANFORD DOUBLE SHELL TANK THERMAL AND SEISMIC PROJECT SENSITIVITY...

    Office of Scientific and Technical Information (OSTI)

    Title: HANFORD DOUBLE SHELL TANK THERMAL AND SEISMIC PROJECT SENSITIVITY OF DOUBLE SHELL ... the definition of the design ground motion or in the properties of the tank-waste system. ...

  15. Shell Future Fuels and CO2 | Open Energy Information

    Open Energy Info (EERE)

    Shell Future Fuels and CO2 Jump to: navigation, search Name: Shell Future Fuels and CO2 Place: Glasgow, Scotland, United Kingdom Zip: G1 9BG Sector: Hydro, Hydrogen Product:...

  16. HANFORD DOUBLE SHELL TANK THERMAL AND SEISMIC PROJECT SEISMIC...

    Office of Scientific and Technical Information (OSTI)

    Title: HANFORD DOUBLE SHELL TANK THERMAL AND SEISMIC PROJECT SEISMIC ANALYSIS OF HANFORD DOUBLE SHELL TANKS M&D Professional Services, Inc. (M&D) is under subcontract to Pacific ...

  17. ,"U.S. Total Shell Storage Capacity at Operable Refineries"

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

    Data for" ,"Data 1","U.S. Total Shell Storage Capacity at Operable ... 9:47:20 AM" "Back to Contents","Data 1: U.S. Total Shell Storage Capacity at Operable ...

  18. Shell seeks modifications to Mosconi sale

    SciTech Connect (OSTI)

    Chynoweth, E.

    1993-01-06

    Privatization of Argentina's Petroquimica General Mosconi (PGM; Buenos Aires) got under way at the end of last years with three companies submitting technical bids. The interested parties are Shell Compania Argentina de Petroleo SA, Diamond Shamrock, and Panam - a group of local companies including Perez Companc, Laboratorios Phoenix, and Quitral. The technical bids include terms of reference and plans for PGM. Shell has sent a letter to the minister in charge of privatization saying it would not present its economic bid, due January 28, unless changes are made in the sale concerning feedstock supply contracts with state oil group YPF. Shell is concerned about the impact of YPF, which supplies PGM most feedstocks. Tender conditions state YPF will retain 30% of PGM, which will be renamed Petroquimica Platense, and will be the exclusive supplier of feestocks and one of the main buyers of product. Government authorities say no decision has been taken relating to Shell's request to change the contract, but they are reviewing the situation. Other bidders made no objections about the proposed conditions. The government is selling 64% of PGM, YPF will retain 30%, and the remainder will go to the workforce.

  19. Method to produce large, uniform hollow spherical shells

    DOE Patents [OSTI]

    Hendricks, Charles D. (Livermore, CA)

    1985-01-01

    Large, uniform hollow spherical shells are produced by forming uniform size drops of heat decomposable or vaporizable material, evaporating the drops to form dried particles, coating the dried particles with a layer of shell forming material, and heating the composite particles to melt the outer layer and decompose or vaporize the inner particle to form an expanding inner gas bubble which expands the outer layer. By cycling the temperature and pressure on the hollow shells, spherical shells with uniform walls are produced.

  20. EA-338-A Shell Energy North America (US), L.P. | Department of...

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

    -A Shell Energy North America (US), L.P. EA-338-A Shell Energy North America (US), L.P. Order authorizing Shell Energy to export electric energy to Mexico. EA-338-A Shell Energy ...

  1. EA-339-A Shell Energy North America (US), L.P. | Department of...

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

    -A Shell Energy North America (US), L.P. EA-339-A Shell Energy North America (US), L.P. Order authorizing Shell Energy to export electric energy to Canada. EA-339-A Shell Energy ...

  2. Constraints for system specifications for the double-shell and single-shell tank systems

    SciTech Connect (OSTI)

    SHAW, C.P.

    1999-05-18

    This is a supporting document for the Level 1 Double-Shell and Single-Shell System Specifications. The rationale for selection of specific regulatory constraining documents cited in the two system specifications is provided. many of the regulations have been implemented by the Project Hanford Management Contract procedures (HNF-PROs) and as such noted and traced back to their origins in State and Federal regulations.

  3. Pseudo-Symmetry and Majorana Operators in pf-Shell

    SciTech Connect (OSTI)

    Valencia, J. P.; Wu, H. C.

    2007-10-26

    The Majorana operator of the pseudo ds-shell preserves the SU-tilde(4) symmetry, and in a unified manner it reproduces reasonably well the ground state energies of the nine nuclei in this shell. The study of {beta} decay in the same shell provides further support for the SU-tilde(4) symmetry.

  4. Study of lubricant circulation in HVAC systems. Volume 1: Description of technical effort and results; Final technical report, March 1995--April 1996

    SciTech Connect (OSTI)

    Biancardi, F.R.; Michels, H.H.; Sienel, T.H.; Pandy, D.R.

    1996-10-01

    The purpose of this program was to conduct experimental and analytical efforts to determine lubricant circulation characteristics of new HFC/POE pairs and HFC/mineral oil pairs in a representative central residential HVAC system and to compare their behavior with the traditional HCFC-22/mineral oil (refrigerant/lubricant) pair. A dynamic test facility was designed and built to conduct the experimental efforts. This facility provided a unique capability to visually and physically measure oil circulation rates, on-line, in operating systems. A unique on-line ultraviolet-based measurement device was used to obtain detailed data on the rate and level of lubricant oil circulated within the operating heat pump system. The experimental and analytical data developed during the program are presented as a function of vapor velocity, refrigerant/lubricant viscosity, system features and equipment. Both visual observations and instrumentation were used to understand ``worst case`` oil circulation situations. This report is presented in two volumes. Volume 1 contains a complete description of the program scope, objective, test results summary, conclusions, description of test facility and recommendations for future effort. Volume 2 contains all of the program test data essentially as taken from the laboratory dynamic test facility during the sequence of runs.

  5. Method of fabricating nested shells and resulting product

    DOE Patents [OSTI]

    Henderson, Timothy M. (Ann Arbor, MI); Kool, Lawrence B. (Ann Arbor, MI)

    1982-01-01

    A multiple shell structure and a method of manufacturing such structure wherein a hollow glass microsphere is surface treated in an organosilane solution so as to render the shell outer surface hydrophobic. The surface treated glass shell is then suspended in the oil phase of an oil-aqueous phase dispersion. The oil phase includes an organic film-forming monomer, a polymerization initiator and a blowing agent. A polymeric film forms at each phase boundary of the dispersion and is then expanded in a blowing operation so as to form an outer homogeneously integral monocellular substantially spherical thermoplastic shell encapsulating an inner glass shell of lesser diameter.

  6. Assessment of Environmental Impacts of Shell GTL Fuel | Department of

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

    Energy Environmental Impacts of Shell GTL Fuel Assessment of Environmental Impacts of Shell GTL Fuel Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck Programs. 2006_deer_cherrillo.pdf (315.83 KB) More Documents & Publications An Evaluation of Shell GTL Diesel Shell Gas to Liquids in the context of a Future Fuel Strategy - Technical Marketing Aspects Verification of Shell GTL

  7. Jess, the Java expert system shell

    SciTech Connect (OSTI)

    Friedman-Hill, E.J.

    1997-11-01

    This report describes Jess, a clone of the popular CLIPS expert system shell written entirely in Java. Jess supports the development of rule-based expert systems which can be tightly coupled to code written in the powerful, portable Java language. The syntax of the Jess language is discussed, and a comprehensive list of supported functions is presented. A guide to extending Jess by writing Java code is also included.

  8. On Closed Shells in Nuclei. II

    DOE R&D Accomplishments [OSTI]

    Mayer, M. G.

    1949-04-01

    Discussion on the use of spins and magnetic moments of the even-odd nuclei by Feenberg and Nordheim to determine the angular momentum of the eigenfunction of the odd particle; discussion of prevalence of isomerism in certain regions of the isotope chart; tabulated data on levels of square well potential, spectroscopic levels, spin term, number of states, shells and known spins and orbital assignments.

  9. STEM-ing the Tide

    Broader source: Energy.gov [DOE]

    The MacArthur Foundation rolled out its latest class of “geniuses” – 23 Americans who stand out because of their creativity and enterprise.

  10. Oxide Shell Reduction and Magnetic Property Changes in Core-Shell Fe Nanoclusters under Ion Irradiation

    SciTech Connect (OSTI)

    Sundararajan, Jennifer A.; Kaur, Maninder; Jiang, Weilin; McCloy, John S.; Qiang, You

    2014-02-12

    Ion irradiation effects are studied on the Fe-based core-shell nanocluster (NC) films with core as Fe and shell as Fe3O4/FeO. These NC films were were deposited on Si substrates to thickness of ~0.5 micrometers using a NC deposition system. The films were irradiated at room temperature with 5.5 MeV Si2+ ions to ion fluences of 1015 and 1016 ions/cm2. It is found that the irradiation induces grain growth, Fe valence reduction in the shell, and crystallization of Fe3N. The nature and mechanism of oxide shell reduction and composition dependence after irradiation were studied by synthesizing additional NC films of Fe3O4 and FeO+Fe3N and irradiating them under the same conditions. The presence of nanocrystalline Fe is found to be a major factor for the oxide shell reduction. The surface morphologies of these films show dramatic changes in the microstructures due to cluster growth and agglomeration as a result of ion irradiation.