National Library of Energy BETA

Sample records for building envelope improvements

  1. Improving Building Envelope and Duct Airtightness of US Dwellings...

    Office of Scientific and Technical Information (OSTI)

    Improving Building Envelope and Duct Airtightness of US Dwellings - the Current State of Energy Retrofits Citation Details In-Document Search Title: Improving Building Envelope and...

  2. Building Envelope Stakeholder Workshop

    Broader source: Energy.gov [DOE]

    Oak Ridge National Laboratory is hosting a building envelope stakeholder workshop on behalf of the DOE Building Technologies Office.

  3. Windows and Building Envelope Facilities

    Broader source: Energy.gov [DOE]

    The Department of Energy funds these three test national lab test facilities to do window and building envelope research.

  4. #AskEnergySaver: Building Envelopes | Department of Energy

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

    Building Envelopes #AskEnergySaver: Building Envelopes May 30, 2014 - 3:16pm Addthis You're home's building envelope protects your home's interior from the outdoor environment to keep you comfortable all year long. But it can also contribute to higher heating and cooling costs. Learn how to improve its efficiency and save you money. | Photo courtesy of Kenneth Kelly, National Renewable Energy Lab. You're home's building envelope protects your home's interior from the outdoor environment to keep

  5. Commercial Building Envelope Technology Webinar Series

    Broader source: Energy.gov [DOE]

    U.S. DOE’s Better Building Alliance and Oak Ridge National Laboratory (ORNL) are hosting a webinar series focused on advancing envelope technologies in commercial buildings.

  6. Ozone Reductions Using Residential Building Envelopes

    SciTech Connect (OSTI)

    Walker, Iain S.; Sherman, Max; Nazaroff, William W.

    2009-02-01

    Ozone is an air pollutant with that can have significant health effects and a significant source of ozone in some regions of California is outdoor air. Because people spend the vast majority of their time indoors, reduction in indoor levels of ozone could lead to improved health for many California residents. Ozone is removed from indoor air by surface reactions and can also be filtered by building envelopes. The magnitude of the envelope impact depends on the specific building materials that the air flows over and the geometry of the air flow paths through the envelope that can be changes by mechanical ventilation operation. The 2008 Residential Building Standards in California include minimum requirements for mechanical ventilation by referencing ASHRAE Standard 62.2. This study examines the changes in indoor ozone depending on the mechanical ventilation system selected to meet these requirements. This study used detailed simulations of ventilation in a house to examine the impacts of different ventilation systems on indoor ozone concentrations. The simulation results showed that staying indoors reduces exposure to ozone by 80percent to 90percent, that exhaust ventilation systems lead to lower indoor ozone concentrations, that opening of windows should be avoided at times of high outdoor ozone, and that changing the time at which mechanical ventilation occurs has the ability to halve exposure to ozone. Future work should focus on the products of ozone reactions in the building envelope and the fate of these products with respect to indoor exposures.

  7. Energy Savings Through Improved Mechanical Systems and Building Envelope Technologies (DE-FOA-0000621)

    Broader source: Energy.gov [DOE]

    Closed Total DOE Funding: $12 million The focus of this Funding Opportunity Announcement (FOA) is to develop cost-effective building technologies that can have a tremendous impact on energy savings overall and lead to a market-ready solution (e.g. at the commercial prototype phase) within five years of project launch.

  8. Windows and Building Envelope | Department of Energy

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

    February 27, 2014 Research and Development Roadmap: Windows and Building Envelope November 26, 2013 Residential Windows and Window Coverings: A Detailed View of the Installed Base ...

  9. Invitation: Commercial Building Envelope Technology Webinar Series

    Broader source: Energy.gov [DOE]

    U.S. DOE’s Better Building Alliance and Oak Ridge National Laboratory (ORNL) are kicking off a new webinar series focused on advancing envelope technologies in commercial buildings. You are invited...

  10. Building Technologies Office Window and Envelope Technologies...

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

    Building Technologies Office Window and Envelope Technologies Emerging Technologies R&D Program Karma Sawyer, Ph.D. karma.sawyer@ee.doe.gov BTO Goal Reduce building energy use by ...

  11. Next Generation Building Envelope Materials | Department of Energy

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

    Building Envelope Materials Next Generation Building Envelope Materials Addthis 1 of 3 Vacuum insulation panels (left); Modified atmosphere panels (right) Image: Oak Ridge National...

  12. Windows and Building Envelope Overview - 2015 BTO Peer Review...

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

    Windows and Building Envelope Overview - 2015 BTO Peer Review Windows and Building Envelope Overview - 2015 BTO Peer Review Presenter: Bahman Habibzadeh, U.S. Department of Energy ...

  13. Commercial Building Envelope Technology Webinar Series | Department...

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

    Commercial Building Envelope Technology Webinar Series May 24, 2016 1:00PM to 1:45PM EDT ... Energy Efficiency - Walls. May 24, 1 to 1:45 p.m. EST Energy Efficiency - Roofs. May 31, 1 ...

  14. CBERD: Building Envelopes | Department of Energy

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

    Envelopes CBERD: Building Envelopes Figure 1: Measurement of performance of ceiling tiles made of new phase change materials in test bed, in naturally ventilated and forced ventilation modes. Source: LBNL. Figure 1: Measurement of performance of ceiling tiles made of new phase change materials in test bed, in naturally ventilated and forced ventilation modes. Source: LBNL. Figure 2: Cool roofs weathering and aging experiments being conducted with industry partner St. Gobain in four different

  15. Windows and Building Envelope Overview - 2015 BTO Peer Review | Department

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

    of Energy Building Envelope Overview - 2015 BTO Peer Review Windows and Building Envelope Overview - 2015 BTO Peer Review Presenter: Bahman Habibzadeh, U.S. Department of Energy View the Presentation Windows and Building Envelope Overview - 2015 BTO Peer Review (1.13 MB) More Documents & Publications Window and Envelope Technologies Overview - 2014 BTO Peer Review Windows and Envelope Subprogram Overview - 2016 BTO Peer Review 2014 Building Technologies Office Program Peer Revi

  16. New tools for the analysis and design of building envelopes

    SciTech Connect (OSTI)

    Papamichael, K.; Winkelmann, F.C.; Buhl, W.F.; Chauvet, H.

    1994-08-01

    We describe the integrated development of PowerDOE, a new version of the DOE-2 building energy analysis program, and the Building Design Advisor (BDA), a multimedia-based design tool that assists building designers with the concurrent consideration of multiple design solutions with respect to multiple design criteria. PowerDOE has a windows-based Graphical User Interface (GUI) that makes it easier to use than DOE-2, while retaining DOE-2`s calculation power and accuracy. BDA, with a similar GUI, is designed to link to multiple analytical models and databases. In its first release it is linked to PowerDOE and a Daylighting Analysis Module, as well as to a Case Studies Database and a Schematic Graphic Editor. These allow building designers to set performance goals and address key building envelope parameters from the initial, schematic phases of building design to the detailed specification of building components and systems required by PowerDOE. The consideration of the thermal performance of building envelopes through PowerDOE and BDA is integrated with non-thermal envelope performance aspects, such as daylighting, as well as with the performance of non-envelope building components and systems, such as electric lighting and HVAC. Future versions of BDA will support links to CAD and electronic product catalogs, as well as provide context-dependent design advice to improve performance.

  17. Building Envelopes | Department of Energy

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

    ... to demonstrate the impact of cool roofs in reducing energy use and improving thermal comfort (e.g., by reducing indoor air and radiant temperatures) Database of radiative ...

  18. Windows and Building Envelope Sub-Program Logic Model

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

    market entry & acceptance of window & building envelope product installation Improve testing & modeling capabilities, including window design tools to enable market adoption Technology pathways & research reports Improve performance & cost of near-term technologies & reduce manufacturing costs Documented low cost infiltration measurement methods Competitively funded projects to model attachments in window software tools Government, standards & industry orgs. & EE

  19. Research and Development Roadmap: Windows and Building Envelope

    Broader source: Energy.gov [DOE]

    Windows and building envelope research and development is a high priority for the Building Technologies Office. This roadmap is a useful resource for public and private decision makers evaluating and pursuing high-impact R&D focused on advancing next-generation energy efficient windows and building envelope technologies.

  20. Hotbox Test R-value Database and the Building Envelopes Program (BEP)

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    The Building Envelopes Program at Oak Ridge National Laboratory (ORNL) is a program within the Buildings Technology Center (BTC), the premier U.S. research facility devoted to developing technologies that improve the energy efficiency and environmental compatibility of residential and commercial buildings. Our program is divided into two parts: building envelope research, which focuses on the structural elements that enclose a building (walls, roofs and foundations), and materials research, which concentrates on the materials within the envelope systems (such as insulation). The building envelope provides the thermal barrier between the indoor and outdoor environment, and its elements are the key determinants of a building's energy requirements that result from the climate where it is located. [copied from http://www.ornl.gov/sci/roofs+walls/

  1. Building Envelope Projects | Department of Energy

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

    Lead Performer: Fraunhofer Center for Sustainable Energy Systems - Boston, MA Partners: University of Tennessee - Knoxville, TN, Atlas Roofing Corporation - Meridian, MS Building ...

  2. Cost Analysis of Simple Phase Change Material-Enhanced Building Envelopes in Southern U.S. Climates

    SciTech Connect (OSTI)

    Kosny, J.; Shukla, N.; Fallahi, A.

    2013-01-01

    Traditional thermal designs of building envelope assemblies are based on static energy flows, yet building envelopes are subject to varying environmental conditions. This mismatch between the steady-state principles and their dynamic operation can decrease thermal efficiency. Design work supporting the development of low-energy houses showed that conventional insulations may not always be the most cost effective solution to improvement envelope thermal performance. PCM-enhanced building envelopes that simultaneously reduce the total cooling loads and shift the peak-hour loads are the focus of this report.

  3. Integrated envelope and lighting technologies for commercial buildings

    SciTech Connect (OSTI)

    Selkowitz, S.; Schuman, J.

    1992-07-01

    Fenestration systems are major contributors to peak cooling loads in commercial buildings and thus to HVAC system costs, peak electric demand, and annual energy use. These loads can be reduced significantly through proper fenestration design and the use of daylighting strategies. However, there are very few documented applications of energy-saving daylighted buildings today, which suggests that significant obstacles to efficient fenestration and lighting design and utilization still exist. This paper reports results of the first phase of a utility-sponsored research, development, and demonstration project to more effectively address the interrelated issues of designing and implementing energy-efficient envelope and lighting systems. We hypothesize that daylighting and overall energy efficiency will not be achieved at a large scale until true building integration has been accomplished to some meaningful degree. Moving beyond the vague concept of ``intelligent` buildings long popular in the design sector, we attempt to integrate component technologies into functional systems in order to optimize the relevant building energy performance and occupant comfort parameters. We describe the first set of integrated envelope and lighting concepts we are developing using available component technologies. Emerging and future technologies will be incorporated in later phases. Because new hardware systems alone will not ensure optimal building performance, we also discuss obstacles to innovation within the design community and proposed strategies to overcome these obstacles.

  4. Integrated envelope and lighting technologies for commercial buildings

    SciTech Connect (OSTI)

    Selkowitz, S.; Schuman, J.

    1992-07-01

    Fenestration systems are major contributors to peak cooling loads in commercial buildings and thus to HVAC system costs, peak electric demand, and annual energy use. These loads can be reduced significantly through proper fenestration design and the use of daylighting strategies. However, there are very few documented applications of energy-saving daylighted buildings today, which suggests that significant obstacles to efficient fenestration and lighting design and utilization still exist. This paper reports results of the first phase of a utility-sponsored research, development, and demonstration project to more effectively address the interrelated issues of designing and implementing energy-efficient envelope and lighting systems. We hypothesize that daylighting and overall energy efficiency will not be achieved at a large scale until true building integration has been accomplished to some meaningful degree. Moving beyond the vague concept of intelligent' buildings long popular in the design sector, we attempt to integrate component technologies into functional systems in order to optimize the relevant building energy performance and occupant comfort parameters. We describe the first set of integrated envelope and lighting concepts we are developing using available component technologies. Emerging and future technologies will be incorporated in later phases. Because new hardware systems alone will not ensure optimal building performance, we also discuss obstacles to innovation within the design community and proposed strategies to overcome these obstacles.

  5. Field Testing of Nano-PCM Enhanced Building Envelope Components

    SciTech Connect (OSTI)

    Biswas, Kaushik; Childs, Phillip W; Atchley, Jerald Allen

    2013-08-01

    The U.S. Department of Energy s (DOE) Building Technologies Program s goal of developing high-performance, energy efficient buildings will require more cost-effective, durable, energy efficient building envelopes. Forty-eight percent of the residential end-use energy consumption is spent on space heating and air conditioning. Reducing envelope-generated heating and cooling loads through application of phase change material (PCM)-enhanced envelope components can facilitate maximizing the energy efficiency of buildings. Field-testing of prototype envelope components is an important step in estimating their energy benefits. An innovative phase change material (nano-PCM) was developed with PCM encapsulated with expanded graphite (interconnected) nanosheets, which is highly conducive for enhanced thermal storage and energy distribution, and is shape-stable for convenient incorporation into lightweight building components. During 2012, two test walls with cellulose cavity insulation and prototype PCM-enhanced interior wallboards were installed in a natural exposure test (NET) facility at Charleston, SC. The first test wall was divided into four sections, which were separated by wood studs and thin layers of foam insulation. Two sections contained nano-PCM-enhanced wallboards: one was a three-layer structure, in which nano-PCM was sandwiched between two gypsum boards, and the other one had PCM dispersed homogeneously throughout graphite nanosheets-enhanced gypsum board. The second test wall also contained two sections with interior PCM wallboards; one contained nano-PCM dispersed homogeneously in gypsum and the other was gypsum board containing a commercial microencapsulated PCM (MEPCM) for comparison. Each test wall contained a section covered with gypsum board on the interior side, which served as control or a baseline for evaluation of the PCM wallboards. The walls were instrumented with arrays of thermocouples and heat flux transducers. Further, numerical modeling of

  6. Windows and Building Envelope Research and Development: A Roadmap for Emerging Technologies

    SciTech Connect (OSTI)

    none,

    2014-02-01

    This Building Technologies Office (BTO) Research and Development (R&D) Roadmap identifies priority windows and building envelope R&D areas of interest. Cost and performance targets are identified for each key R&D area. The roadmap describes the technical and market challenges to be overcome, R&D activities and milestones, key stakeholders, and potential energy savings that could result if cost and performance targets are met. Methods for improving technology performance and specific strategies for reducing installed costs and mitigating any other market barriers, which would increase the likelihood of mass-market technology adoption, are identified. This roadmap is a useful resource for public and private decision makers evaluating and pursuing high-impact R&D focused on advancing next-generation energy efficient windows and building envelope technologies.

  7. Low-Cost Phase Change Material for Building Envelopes

    SciTech Connect (OSTI)

    Abhari, Ramin

    2015-08-06

    A low-cost PCM process consisting of conversion of fats and oils to PCM-range paraffins, and subsequent “encapsulation” of the paraffin using conventional plastic compounding/pelletizing equipment was demonstrated. The PCM pellets produced were field-tested in a building envelope application. This involved combining the PCM pellets with cellulose insulation, whereby 33% reduction in peak heat flux and 12% reduction in heat gain was observed (average summertime performance). The selling price of the PCM pellets produced according to this low-cost process is expected to be in the $1.50-$3.00/lb range, compared to current encapsulated PCM price of about $7.00/lb. Whole-building simulations using corresponding PCM thermal analysis data suggest a payback time of 8 to 16 years (at current energy prices) for an attic insulation retrofit project in the Phoenix climate area.

  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. Model for Naturally Ventilated Cavities on the Exteriors of Opaque Building Thermal Envelopes

    SciTech Connect (OSTI)

    Griffith, B.

    2006-11-01

    This paper describes a model for naturally ventilated cavities on the exterior of opaque building thermal envelopes that are formed by the presence of a lightweight baffle. The model can be used for building components that are slightly detached from the main envelope (but do not connect to the interior).

  10. Building America Webinar: Advanced Envelope Research for Factory...

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

    Advanced Envelope Research for Factory-Built Housing ARIES lab houses. Photo courtesy of The Levy Partnership, Inc. Integrated Design: A High-Performance Solution for Affordable ...

  11. Building America Case Study: Predicting Envelope Leakage in Attached...

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

    Application: New and retrofit; multifamily Year Tested: 2013 Applicable Climate Zone(s): ... mation of thermal envelope leakage and the potential energy benefits of air sealing. ...

  12. Building America Expert Meeting: Advanced Envelope Research for...

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

    This report provides information about the expert meeting on advanced envelope research for factory built housing, hosted by the ARIES Collaborative on October 11, 2011, in Phoenix...

  13. 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

  14. Webinar: Introduction to Pre-engineered Metal Building Envelope Commissioning

    Broader source: Energy.gov [DOE]

    The metal building industry produces more than 50% of all new low-rise nonresidential construction in the United States. These buildings serve many different end uses, including commercial,...

  15. Building America Case Study: Predicting Envelope Leakage in Attached Dwellings (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-12-01

    'The cost for blower testing is high, because it is labor intensive, and it may disrupt occupants in multiple units. This high cost and disruption deters program participants, and dissuades them from pursuing energy improvements that would trigger air leakage testing, such as improvements to the building envelope.' This statement found in a 2012 report by Heschong Mahone Group emphasizes the importance of reducing the cost and complexity of blower testing in multifamily buildings. Energy efficiency opportunities are being bypassed. The cost of single blower testing is on the order of $300. The cost for guarded blower door testing, the more appropriate test for assessing energy savings opportunities, could easily be six times that and that's only if you have the equipment and simultaneous access to multiple apartments. Thus, the proper test is simply not performed. The objective of the 2013 research project was to develop the model for predicting fully guarded test results (FGT), using unguarded test data and specific building features of apartment units. The model developed has a coefficient of determination R2 value of 0.53 with a root mean square error (RMSE) of 0.13. Both statistical metrics indicate that the model is relatively strong. When tested against data that was not included in the development of the model, prediction accuracy was within 19%, which is reasonable given that seasonal differences in blower door measurements can vary by as much as 25%.

  16. 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

  17. Building Thermal Envelope Systems and Materials (BTESM) and research utilization/technology transfer

    SciTech Connect (OSTI)

    Burn, G.

    1990-07-01

    The Monthly Report of the Building Thermal Envelope Systems and Materials (BTESM) Programs is a monthly update of both in-house ORNL projects and subcontract activities in the research areas of building materials, wall systems, foundations, roofs, building diagnostics, and research utilization and technology transfer. Presentations are not stand-alone paragraphs every month. Their principal values are the short-time lapse between accomplishment and reporting and their evolution over a period of several months..

  18. ORNL Collaborates with Industry on Award-Winning Building Envelope...

    Energy Savers [EERE]

    LIQUIDARMOR was funded by the U.S.-China Clean Energy Research Center for Building ... In 2014, the U.S. and China renewed their commitments to CERC BEE for an additional five ...

  19. Furnace Blower Performance Improvements - Building America Top...

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

    Furnace Blower Performance Improvements - Building America Top Innovation Furnace Blower Performance Improvements - Building America Top Innovation This photo shows a ...

  20. Greenbelt Homes Pilot Program: Summary of Building Envelope Retrofits, Planned HVAC Equipment Upgrades, and Energy Savings

    SciTech Connect (OSTI)

    Wiehagen, J.; Del Bianco, M.; Mallay, D.

    2015-05-01

    In the fall of 2010, a multiyear pilot energy efficiency retrofit project was undertaken by Greenbelt Homes, Inc, (GHI) a 1,566 home cooperative of circa 1930 and 1940 homes in Greenbelt, Maryland. GHI established this pilot project to serve as a basis for decision making for the rollout of a decade-long community-wide upgrade program that will incorporate energy efficiency improvements to the building envelope and mechanical equipment. It presents a unique opportunity to evaluate and prioritize the wide-range of benefits of high-performance retrofits based on member experience with and acceptance of the retrofit measures implemented during the pilot project. Addressing the complex interactions between benefits, trade-offs, construction methods, project management implications, realistic upfront costs, financing, and other considerations, serves as a case study for energy retrofit projects to include high-performance technologies based on the long-term value to the homeowner. The pilot project focused on identifying the added costs and energy savings benefits of improvements.

  1. NREL Develops Diagnostic Test Cases To Improve Building Energy Simulation Programs (Fact Sheet), Building America: Technical Highlight, Building Technologies Program (BTP)

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

    Develops Diagnostic Test Cases To Improve Building Energy Simulation Programs The National Renewable Energy Laboratory (NREL) Residential and Commercial Buildings research groups developed a set of diagnostic test cases for building energy simulations. Eight test cases were developed to test surface conduction heat transfer algorithms of building envelopes in building energy simulation programs. These algorithms are used to predict energy flow through external opaque surfaces such as walls,

  2. Energy Impacts of Nonlinear Behavior of PCM When Applied into Building Envelope: Preprint

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

    Energy Impacts of Nonlinear Behavior of PCM When Applied into Building Envelope Preprint P.C. Tabares-Velasco Presented at the ASME 2012 6th International Conference on Energy Sustainability & 10th Fuel Cell Science, Engineering and Technology Conference San Diego, California July 23-26, 2012 Conference Paper NREL/CP-5500-54245 August 2012 NOTICE The submitted manuscript has been offered by an employee of the Alliance for Sustainable Energy, LLC (Alliance), a contractor of the US Government

  3. A Retrofit Tool for Improving Energy Efficiency of Commercial Buildings

    SciTech Connect (OSTI)

    Levine, Mark; Feng, Wei; Ke, Jing; Hong, Tianzhen; Zhou, Nan

    2013-06-06

    Existing buildings will dominate energy use in commercial buildings in the United States for three decades or longer and even in China for the about two decades. Retrofitting these buildings to improve energy efficiency and reduce energy use is thus critical to achieving the target of reducing energy use in the buildings sector. However there are few evaluation tools that can quickly identify and evaluate energy savings and cost effectiveness of energy conservation measures (ECMs) for retrofits, especially for buildings in China. This paper discusses methods used to develop such a tool and demonstrates an application of the tool for a retrofit analysis. The tool builds on a building performance database with pre-calculated energy consumption of ECMs for selected commercial prototype buildings using the EnergyPlus program. The tool allows users to evaluate individual ECMs or a package of ECMs. It covers building envelope, lighting and daylighting, HVAC, plug loads, service hot water, and renewable energy. The prototype building can be customized to represent an actual building with some limitations. Energy consumption from utility bills can be entered into the tool to compare and calibrate the energy use of the prototype building. The tool currently can evaluate energy savings and payback of ECMs for shopping malls in China. We have used the tool to assess energy and cost savings for retrofit of the prototype shopping mall in Shanghai. Future work on the tool will simplify its use and expand it to cover other commercial building types and other countries.

  4. Improve predictive maintenance with HFE monitoring. [High Frequency Envelope

    SciTech Connect (OSTI)

    Page, E.A. ); Berggren, C. )

    1994-01-01

    New on-line machine vibration monitoring systems are offering substantially lower costs and simpler installation requirement. By incorporating high-frequency envelope (HFE) spectrum analysis, these systems can provide earlier and more reliable fault detection. These new capabilities are spurring a transition to on-line predictive monitoring of even noncritical machinery. These condition-monitoring systems automatically perform both conventional vibration analysis and HFE spectrum analysis. Conventional low-frequency spectrum analysis, between 0 to 10 kHz, is widely acknowledged as the most effective means of detecting imbalance, misalignment, mechanical resonances and looseness on machinery. HFE spectrum analysis, above 15 kHz, is now accepted as the most effective method for detecting machine faults, such as pitting or cracking in bearings and gears, insufficient lubrication, shaft rubbing and pump cavitation. The performance and economics of this method is discussed.

  5. Double Wall Framing Technique An Example of High Performance, Sustainable Building Envelope Technology

    SciTech Connect (OSTI)

    Kosny, Dr. Jan; Asiz, Andi; Shrestha, Som S; Biswas, Kaushik; Nitin, Shukla

    2015-01-01

    Double wall technologies utilizing wood framing have been well-known and used in North American buildings for decades. Most of double wall designs use only natural materials such as wood products, gypsum, and cellulose fiber insulation, being one of few building envelope technologies achieving high thermal performance without use of plastic foams or fiberglass. Today, after several material and structural design modifications, these technologies are considered as highly thermally efficient, sustainable option for new constructions and sometimes, for retrofit projects. Following earlier analysis performed for U.S. Department of Energy by Fraunhofer CSE, this paper discusses different ways to build double walls and to optimize their thermal performance to minimize the space conditioning energy consumption. Description of structural configuration alternatives and thermal performance analysis are presented as well. Laboratory tests to evaluate thermal properties of used insulation and whole wall system thermal performance are also discussed in this paper. Finally, the thermal loads generated in field conditions by double walls are discussed utilizing results from a joined project performed by Zero Energy Building Research Alliance and Oak Ridge National Laboratory (ORNL), which made possible evaluation of the market viability of low-energy homes built in the Tennessee Valley. Experimental data recorded in two of the test houses built during this field study is presented in this work.

  6. Low-cost phase change material as an energy storage medium in building envelopes: Experimental and numerical analyses

    SciTech Connect (OSTI)

    Biswas, Kaushik; Abhari, Ramin

    2014-10-03

    A promising approach to increasing the energy efficiency of buildings is the implementation of a phase change material (PCM) in the building envelope. Numerous studies over the last two decades have reported the energy saving potential of PCMs in building envelopes, but their wide application has been inhibited, in part, by their high cost. This article describes a novel PCM made of naturally occurring fatty acids/glycerides trapped into high density polyethylene (HDPE) pellets and its performance in a building envelope application. The PCM-HDPE pellets were mixed with cellulose insulation and then added to an exterior wall of a test building in a hot and humid climate, and tested over a period of several months, To demonstrate the efficacy of the PCM-enhanced cellulose insulation in reducing the building envelope heat gains and losses, side-by-side comparison was performed with another wall section filled with cellulose-only insulation. Further, numerical modeling of the test wall was performed to determine the actual impact of the PCM-HDPE pellets on wall-generated heating and cooling loads and the associated electricity consumption. The model was first validated using experimental data and then used for annual simulations using typical meteorological year (TMY3) weather data. Furthermore, this article presents the experimental data and numerical analyses showing the energy-saving potential of the new PCM.

  7. Low-cost phase change material as an energy storage medium in building envelopes: Experimental and numerical analyses

    SciTech Connect (OSTI)

    Biswas, Kaushik; Abhari, Mr. Ramin

    2014-01-01

    A promising approach to increasing the energy efficiency of buildings is the implementation of a phase change material (PCM) in the building envelope. Numerous studies over the last two decades have reported the energy saving potential of PCMs in building envelopes, but their wide application has been inhibited, in part, by their high cost. This article describes a novel PCM made of naturally occurring fatty acids/glycerides trapped into high density polyethylene (HDPE) pellets and its performance in a building envelope application. The PCM-HDPE pellets were mixed with cellulose insulation and then added to an exterior wall of a test building in a hot and humid climate, and tested over a period of several months, To demonstrate the efficacy of the PCM-enhanced cellulose insulation in reducing the building envelope heat gains and losses, side-by-side comparison was performed with another wall section filled with cellulose-only insulation. Further, numerical modeling of the test wall was performed to determine the actual impact of the PCM-HDPE pellets on wall-generated heating and cooling loads and the associated electricity consumption. The model was first validated using experimental data and then used for annual simulations using typical meteorological year (TMY3) weather data. This article presents the experimental data and numerical analyses showing the energy-saving potential of the new PCM.

  8. Improving Building Envelope and Duct Airtightness of US Dwellings...

    Office of Scientific and Technical Information (OSTI)

    of Science (SC) Country of Publication: United States Language: English Subject: 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION Blower door, duct blaster, fan...

  9. Low-cost phase change material as an energy storage medium in building envelopes: Experimental and numerical analyses

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

    Biswas, Kaushik; Abhari, Ramin

    2014-10-03

    A promising approach to increasing the energy efficiency of buildings is the implementation of a phase change material (PCM) in the building envelope. Numerous studies over the last two decades have reported the energy saving potential of PCMs in building envelopes, but their wide application has been inhibited, in part, by their high cost. This article describes a novel PCM made of naturally occurring fatty acids/glycerides trapped into high density polyethylene (HDPE) pellets and its performance in a building envelope application. The PCM-HDPE pellets were mixed with cellulose insulation and then added to an exterior wall of a test buildingmore » in a hot and humid climate, and tested over a period of several months, To demonstrate the efficacy of the PCM-enhanced cellulose insulation in reducing the building envelope heat gains and losses, side-by-side comparison was performed with another wall section filled with cellulose-only insulation. Further, numerical modeling of the test wall was performed to determine the actual impact of the PCM-HDPE pellets on wall-generated heating and cooling loads and the associated electricity consumption. The model was first validated using experimental data and then used for annual simulations using typical meteorological year (TMY3) weather data. Furthermore, this article presents the experimental data and numerical analyses showing the energy-saving potential of the new PCM.« less

  10. Building Thermal Envelope Systems and Materials (BTESM) and research utilization/technology transfer progress report for DOE (Department of Energy) Office of Buildings Energy Research

    SciTech Connect (OSTI)

    Burn, G.

    1990-08-01

    The Monthly Report of the Building Thermal Envelope Systems and Materials (BTESM) Program is a monthly update of both in-house ORNL projects and subcontract activities in the research areas of building materials, wall systems, foundations, roofs, building diagnostics, and research utilization and technology transfer. Presentations are not stand-alone paragraphs every month. Their principal values are the short-time lapse between accomplishment and reporting and their evolution over a period of several months.

  11. WINDOW-WALL INTERFACE CORRECTION FACTORS: THERMAL MODELING OF INTEGRATED FENESTRATION AND OPAQUE ENVELOPE SYSTEMS FOR IMPROVED PREDICTION OF ENERGY USE

    SciTech Connect (OSTI)

    Bhandari, Mahabir S; Ravi, Dr. Srinivasan

    2012-01-01

    The boundary conditions for thermal modeling of fenestration systems assume an adiabatic condition between the fenestration system installed and the opaque envelope system. This theoretical adiabatic boundary condition may not be appropriate owing to heat transfer at the interfaces, particularly for aluminum- framed windows affixed to metal- framed walls. In such scenarios, the heat transfer at the interface may increase the discrepancy between real world thermal indices and laboratory measured or calculated indices based on NFRC Rating System.This paper discusses the development of window-wall Interface Correction Factors (ICF) to improve energy impacts of building envelope systems

  12. Low-Cost Bio-Based Phase Change Materials as an Energy Storage Medium in Building Envelopes

    SciTech Connect (OSTI)

    Biswas, Kaushik; Abhari, Mr. Ramin; Shukla, Dr. Nitin; Kosny, Dr. Jan

    2015-01-01

    A promising approach to increasing the energy efficiency of buildings is the implementation of phase change material (PCM) in building envelope systems. Several studies have reported the energy saving potential of PCM in building envelopes. However, wide application of PCMs in building applications has been inhibited, in part, by their high cost. This article describes a novel paraffin product made of naturally occurring fatty acids/glycerides trapped into high density polyethylene (HDPE) pellets and its performance in a building envelope application, with the ultimate goal of commercializing a low-cost PCM platform. The low-cost PCM pellets were mixed with cellulose insulation, installed in external walls and field-tested under natural weatherization conditions for a period of several months. In addition, several PCM samples and PCM-cellulose samples were prepared under controlled conditions for laboratory-scale testing. The laboratory tests were performed to determine the phase change properties of PCM-enhanced cellulose insulation both at microscopic and macroscopic levels. This article presents the data and analysis from the exterior test wall and the laboratory-scale test data. PCM behavior is influenced by the weather and interior conditions, PCM phase change temperature and PCM distribution within the wall cavity, among other factors. Under optimal conditions, the field data showed up to 20% reduction in weekly heat transfer through an external wall due to the PCM compared to cellulose-only insulation.

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

    SciTech Connect (OSTI)

    Karagiozis, A.N.

    2007-05-15

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

  14. Building envelope thermal and daylighting analysis in support of recommendations to upgrade ASHRAE/IES Standard 90. Final report

    SciTech Connect (OSTI)

    Johnson, R.; Sullivan, R.; Nozaki, S.; Selkowitz, S.; Conner, C.; Arasteh, D.

    1983-09-01

    Fenestration design can greatly affect the energy requirements for space conditioning and electric lighting in buildings. The net annual effect greatly depends on the effectiveness of daylight utilization with specific results being a complex function of the interaction among building design features, building operating characteristics, and climate. The object of this study was to isolate the energy effects of fenestration and electric lighting design, quantify these effects, and develop simplified analysis tools for compliance use in the building envelopes section of ASHRAE/IES Standard 90. Envelope thermal conductivity, fenestration design, and electric lighting characteristics are parametrically varied through a wide range of values and in a diversity of climates. For these parametric variations, annual energy consumption is calculated with the DOE-2.1B energy analysis program. The numerical results are collected and stored on tape. From this data base statistical analysis is performed using multiple regression techniques leading to simplified correlation expressions characterize annual energy performance trends for cooling, heating, and cooling peak so that users can easily ascertain the energy implications of design options for fenestration, daylighting, and electric lighting.

  15. Pushing the Envelope: A Case Study of Building the First Manufactured Home Using Structural Insulated Panels

    SciTech Connect (OSTI)

    Baechler, Michael C.; Hadley, Donald L.; Sparkman, Ronald; Lubliner, Michael

    2002-06-01

    This paper for the ACEEE Summer Study describes construction of the first manufactured home ever produced from structural insulated panels. The home was built in July 2000 by Champion Enterprises at its Silverton, Oregon, plant. The house was completed on the assembly line in 9 days including a 300-mile road test. The paper examines the design and approval process leading to the project, the manufacturing process and its adjustment to SIPs, and the transportation and energy performance of the house after it was built. PNNL coordinated this project and conducted long-term monitoring on the house. The WSU Energy Program conducted building diagnostics testing once the house was occupied. PNNLs and WSUs involvement was funded by the U.S. DOE Building America Program. The Oregon Office of Energy conducted blower door and duct blaster tests. The completed home was estimated to reduce energy consumption by 50% and to have twice the structural strength required by HUD code for manufactured homes. The demonstration proved that the manufactured home production line could support SIPs production simultaneously with traditional construction and without major modifications, the line work in parallel with SIPs and traditional materials. The project revealed severl possibilities for further improving cost and time savings with SIPs construction, that might translate into increased capacity.

  16. Building America Expert Meeting: Advanced Envelope Research for Factory Built Housing

    Broader source: Energy.gov [DOE]

    This report provides information about the expert meeting on advanced envelope research for factory built housing, hosted by the ARIES Collaborative on October 11, 2011, in Phoenix, Arizona. The goals of this meeting were to provide a comprehensive solution to the use of three previously selected advanced alternatives for factory-built wall construction, assess each option focusing on major issues relating to viability and commercial potential, and determine additional steps are required to reach this potential.

  17. Building Technologies Office Window and Envelope Technologies Emerging Technologies R&D Program

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

    The BPD statistically analyzes the energy performance and physical and operational characteristics of real commercial and residential buildings. The Building Performance Database offers two primary methods to analyze building performance data. These are "Explore", which allows users to browse a single dataset within the BPD, and "Compare", which allowed users to compare multiple datasets within the BPD side-by-side. Explore The Explore tool allows users to browse a single

  18. Energy Impacts of Nonlinear Behavior of PCM When Applied into Building Envelope: Preprint

    SciTech Connect (OSTI)

    Tabares-Velasco, P. C.

    2012-08-01

    Previous research on phase change materials (PCM) for building applications has been done for several decades resulting in plenty of literature on PCM properties, temperature, and peak reduction potential. Thus, PCMs are a potential technology to reduce peak loads and HVAC energy consumption in buildings. There are few building energy simulation programs that have PCM modeling features, and even fewer have been validated. Additionally, there is no previous research that indicates the level of accuracy when simulating PCM from a building energy simulation perspective. This study analyzes the effects a nonlinear enthalpy profile has on thermal performance and expected energy benefits for PCM-enhanced insulation.

  19. Building America Webinar: Advanced Envelope Research for Factory-Built Housing

    Broader source: Energy.gov [DOE]

    This webinar was conducted on December 14, 2011, by the ARIES Collaborative, a U.S. Department of Energy Building America research team.

  20. Windows and Envelope Subprogram 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 Windows and Envelope Subprogram. Through robust feedback, the BTO Program Peer Review enhances existing efforts and improves future designs.

  1. Better Buildings Challenge is Expanding, Improving Energy Efficiency...

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

    Better Buildings Challenge is Expanding, Improving Energy Efficiency Throughout America Better ... Better Buildings Expands to Include Multifamily Residential Housing The Better ...

  2. ORNL Collaborates with Industry on Award-Winning Building Envelope Technologies

    Broader source: Energy.gov [DOE]

    LIQUIDARMOR, a sprayable liquid sealant developed by The Dow Chemical Company and evaluated at Oak Ridge National Laboratory (ORNL), recently won the 2016 Gold Edison Award for Building Construction & Lighting Innovations. The Edison Awards honor the best in innovation and excellence in the development of new products and services.

  3. Greenbelt Homes Pilot Program. Summary of Building Envelope Retrofits, Planned HVAC Equipment Upgrades, and Energy Savings

    SciTech Connect (OSTI)

    Wiehagen, J.; Del Bianco, M.; Mallay, D.

    2015-05-22

    The U.S. Department of Energy Building America team Partnership for Home Innovation wrote a report on Phase 1 of the project that summarized a condition assessment of the homes and evaluated retrofit options within the constraints of the cooperative provided by GHI. Phase 2 was completed following monitoring in the 2013–2014 winter season; the results are summarized in this report. Phase 3 upgrades of heating equipment will be implemented in time for the 2014–2015 heating season and are not part of this report.

  4. Advanced Technologies and Practices- Building America Top Innovations

    Broader source: Energy.gov [DOE]

    Top Innovations in this category encompass research in specific technologies and construction practices that improve the building envelope, HVAC components, ventilation, and health and safety issues.

  5. Africa Adaptation Programme: Capacity Building Experiences-Improving...

    Open Energy Info (EERE)

    Eastern Africa, Middle Africa, Northern Africa, Southern Africa, Western Africa Language: English Africa Adaptation Programme: Capacity Building Experiences-Improving Access,...

  6. Better Buildings Challenge is Expanding, Improving Energy Efficiency

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

    Throughout America | Department of Energy Better Buildings Challenge is Expanding, Improving Energy Efficiency Throughout America Better Buildings Challenge is Expanding, Improving Energy Efficiency Throughout America December 5, 2013 - 4:36pm Addthis Industry and government officials discuss the Better Buildings Challenge expansion at the White House earlier this week. | Photo courtesy of Department of Housing and Urban Development Industry and government officials discuss the Better

  7. DOE Announces New Opportunities to Improve Commercial Building Energy

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

    Efficiency - News Releases | NREL DOE Announces New Opportunities to Improve Commercial Building Energy Efficiency April 21, 2010 The U.S. Department of Energy (DOE) today announced support for energy-saving commercial building projects as part of an ongoing effort by DOE to improve the energy efficiency of buildings in the United States. With money from the American Recovery and Reinvestment Act, DOE's national laboratories will select and fund technical experts to provide technical

  8. Team Middlebury On How to Create Buildings That Improve Communities

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

    Socially, Economically, and Environmentally | Department of Energy Team Middlebury On How to Create Buildings That Improve Communities Socially, Economically, and Environmentally Team Middlebury On How to Create Buildings That Improve Communities Socially, Economically, and Environmentally July 8, 2013 - 4:36pm Addthis Team Middlebury at their Spring Build of the InSite, a 954 sq. ft. solar-powered home that's set to compete in the 2013 Solar Decathlon. Cordelia, Team Manager, is pictured

  9. University-Industry-National Laboratory Partnership to Improve Building

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

    Efficiency by Equipment Health Monitoring with Virtual Intelligent Sensing | Department of Energy University-Industry-National Laboratory Partnership to Improve Building Efficiency by Equipment Health Monitoring with Virtual Intelligent Sensing University-Industry-National Laboratory Partnership to Improve Building Efficiency by Equipment Health Monitoring with Virtual Intelligent Sensing Disaggregated power consumption charts. Image courtesy of Oak Ridge National Laboratory and BTO Reviews.

  10. Energy Efficiency Improvements to Wundar Hall, a Historic Building on the Concordia Campus, Milwaukee, Wisconsin

    SciTech Connect (OSTI)

    Karman, Nathan

    2012-11-29

    The Forest County Potawatomi Community (??FCPC? or ??Community?) implemented energy efficiency improvements to revitalize Wundar Hall, a 34,000 square foot (??SF?) building that was formerly used as a dormitory and is listed on the National Registry of Historic Places, into an office building. Wundar Hall is the first of many architecturally and historically significant buildings that the Community hopes to renovate at the former Concordia College campus, property on the near west side of Milwaukee that was taken into trust for the Community by the United States on July 10, 1990 (collectively, the ??Concordia Trust Property?). As part of this project, which was conducted with assistance from the Department of Energy??s Tribal Energy Program (??TEP?), the Community updated and/or replaced the building envelope, mechanical systems, the plumbing system, the electrical infrastructure, and building control systems. The project is expected to reduce the building??s natural gas consumption by 58% and the electricity consumption by 55%. In addition, the project was designed to act as a catalyst to further renovation of the Concordia Trust Property and the neighborhood. The City of Milwaukee has identified redevelopment of the Concordia Trust Property as a ??Catalytic Project? for revitalizing the near west side. The Tribe envisions a revitalized, mixed-use campus of community services, education, and economic development??providing services to the Indian community and jobs to the neighborhood.

  11. Multifamily Envelope Leakage Model

    SciTech Connect (OSTI)

    Faakye, Omari; Griffiths, Dianne

    2015-05-08

    “The cost for blower testing is high, because it is labor intensive, and it may disrupt occupants in multiple units. This high cost and disruption deter program participants, and dissuade them from pursuing energy improvements that would trigger air leakage testing, such as improvements to the building envelope.” This statement found in a 2012 report by Heschong Mahone Group for several California interests emphasizes the importance of reducing the cost and complexity of blower testing in multifamily buildings. Energy efficiency opportunities are being bypassed. The cost of single blower testing is on the order of $300. The cost for guarded blower door testing—the more appropriate test for assessing energy savings opportunities—could easily be six times that, and that’s only if you have the equipment and simultaneous access to multiple apartments. Thus, the proper test is simply not performed. This research seeks to provide an algorithm for predicting the guarded blower door test result based upon a single, total blower door test.

  12. Furnace Blower Performance Improvements - Building America Top Innovation |

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

    Department of Energy Furnace Blower Performance Improvements - Building America Top Innovation Furnace Blower Performance Improvements - Building America Top Innovation This photo shows a circular-shaped blower fan for furnaces and air conditioners. As homeowners switch on their forced-air furnaces in preparation for cold weather, they may be unaware of how furnace blowers can impact HVAC efficiency. In fact, studies show that the most common blowers have efficiencies of only 10%-15%.

  13. Using Dashboards to Improve Energy and Comfort in Federal Buildings

    SciTech Connect (OSTI)

    Lawrence Berkeley National Laboratory; Marini, Kyle; Ghatikar, Girish; Diamond, Richard

    2011-02-01

    Federal agencies are taking many steps to improve the sustainability of their operations, including improving the energy efficiency of their buildings, promoting recycling and reuse of materials, encouraging carpooling and alternative transit schemes, and installing low flow water fixture units are just a few of the common examples. However, an often overlooked means of energy savings is to provide feedback to building users about their energy use through information dashboards connected to a building?s energy information system. An Energy Information System (EIS), broadly defined, is a package of performance monitoring software, data acquisition hardware, and communication systems that is used to collect, store, analyze, and display energy information. At a minimum, the EIS provides the whole-building energy-use information (Granderson 2009a). We define a ?dashboard? as a display and visualization tool that utilizes the EIS data and technology to provide critical information to users. This information can lead to actions resulting in energy savings, comfort improvements, efficient operations, and more. The tools to report analyzed information have existed in the information technology as business intelligence (Few 2006). The dashboard is distinguished from the EIS as a whole, which includes additional hardware and software components to collect and storage data, and analysis for resources and energy management (Granderson 2009b). EIS can be used for a variety of uses, including benchmarking, base-lining, anomaly detection, off-hours energy use evaluation, load shape optimization, energy rate analysis, retrofit and retro-commissioning savings (Granderson 2009a). The use of these EIS features depends on the specific users. For example, federal and other building managers may use anomaly detection to identify energy waste in a specific building, or to benchmark energy use in similar buildings to identify energy saving potential and reduce operational cost. There are

  14. Improving Building Energy Simulation Programs Through Diagnostic Testing (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-02-01

    New test procedure evaluates quality and accuracy of energy analysis tools for the residential building retrofit market. Reducing the energy use of existing homes in the United States offers significant energy-saving opportunities, which can be identified through building simulation software tools that calculate optimal packages of efficiency measures. To improve the accuracy of energy analysis for residential buildings, the National Renewable Energy Laboratory's (NREL) Buildings Research team developed the Building Energy Simulation Test for Existing Homes (BESTEST-EX), a method for diagnosing and correcting errors in building energy audit software and calibration procedures. BESTEST-EX consists of building physics and utility bill calibration test cases, which software developers can use to compare their tools simulation findings to reference results generated with state-of-the-art simulation tools. Overall, the BESTEST-EX methodology: (1) Tests software predictions of retrofit energy savings in existing homes; (2) Ensures building physics calculations and utility bill calibration procedures perform to a minimum standard; and (3) Quantifies impacts of uncertainties in input audit data and occupant behavior. BESTEST-EX is helping software developers identify and correct bugs in their software, as well as develop and test utility bill calibration procedures.

  15. Window and Envelope Technologies Overview- 2014 BTO Peer Review

    Broader source: Energy.gov [DOE]

    Presenter: Karma Sawyer, U.S. Department of Energy This presentation at the 2014 Peer Review provided an overview of the Building Technologies Office's Window and Envelope Technologies activities. Through robust feedback, the BTO Program Peer Review enhances existing efforts and improves future designs.

  16. Validation Methodology to Allow Simulated Peak Reduction and Energy Performance Analysis of Residential Building Envelope with Phase Change Materials: Preprint

    SciTech Connect (OSTI)

    Tabares-Velasco, P. C.; Christensen, C.; Bianchi, M.

    2012-08-01

    Phase change materials (PCM) represent a potential technology to reduce peak loads and HVAC energy consumption in residential buildings. This paper summarizes NREL efforts to obtain accurate energy simulations when PCMs are modeled in residential buildings: the overall methodology to verify and validate Conduction Finite Difference (CondFD) and PCM algorithms in EnergyPlus is presented in this study. It also shows preliminary results of three residential building enclosure technologies containing PCM: PCM-enhanced insulation, PCM impregnated drywall and thin PCM layers. The results are compared based on predicted peak reduction and energy savings using two algorithms in EnergyPlus: the PCM and Conduction Finite Difference (CondFD) algorithms.

  17. Building America Technology Solutions for New and Existing Homes: Predicting Envelope Leakage in Attached Dwellings (Fact Sheet)

    Broader source: Energy.gov [DOE]

    In an attempt to create a simplified tool for predicting leakage to the outside, the CARB team analyzed blower door test results from 112 attached dwelling units in four apartment complexes to investigate the correlation between building specifications and the ratio of guarded and solo test results.

  18. Building America Technology Solutions for New and Existing Homes: Improving

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

    Comfort in Hot-Humid Climates with a Whole-House Dehumidifier, Windermere, Florida (Fact Sheet) | Department of Energy Improving Comfort in Hot-Humid Climates with a Whole-House Dehumidifier, Windermere, Florida (Fact Sheet) Building America Technology Solutions for New and Existing Homes: Improving Comfort in Hot-Humid Climates with a Whole-House Dehumidifier, Windermere, Florida (Fact Sheet) In order to quantify the performance of a combined whole-house dehumidifier (WHD) AC system,

  19. Assessing and Improving the Accuracy of Energy Analysis for Residential Buildings

    SciTech Connect (OSTI)

    Polly, B.; Kruis, N.; Roberts, D.

    2011-07-01

    This report describes the National Renewable Energy Laboratory's (NREL) methodology to assess and improve the accuracy of whole-building energy analysis for residential buildings.

  20. Advanced Envelope Research for Factory Built Housing, Phase 3—Design Development and Prototyping

    Broader source: Energy.gov [DOE]

    This Building America report describes the Advanced Envelope Research project, which will provide factory home builders with high-performance, cost-effective alternative envelope designs.

  1. Buildings Energy Data Book: 2.6 Residential Home Improvement

    Buildings Energy Data Book [EERE]

    6 2010-2011 National Professional Remodeling Cost and Amount Recouped in Resale Value Envelope Siding Replacement - Vinyl 11.4 8.2 72% Window Replacement - Vinyl 11.1 7.9 72% ...

  2. Simulation Speed Analysis and Improvements of Modelica Models for Building Energy Simulation

    SciTech Connect (OSTI)

    Jorissen, Filip; Wetter, Michael; Helsen, Lieve

    2015-09-21

    This paper presents an approach for speeding up Modelica models. Insight is provided into how Modelica models are solved and what determines the tool’s computational speed. Aspects such as algebraic loops, code efficiency and integrator choice are discussed. This is illustrated using simple building simulation examples and Dymola. The generality of the work is in some cases verified using OpenModelica. Using this approach, a medium sized office building including building envelope, heating ventilation and air conditioning (HVAC) systems and control strategy can be simulated at a speed five hundred times faster than real time.

  3. Windows and Building Envelope Facilities

    Broader source: Energy.gov [DOE]

    LBNL’s has three facilities specifically dedicated to windows: the Optical Properties Laboratory, the Infrared Thermography Laboratory, and the Mobile Window Thermal Test Facility (MoWiTT). These...

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

    SciTech Connect (OSTI)

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

    2010-08-01

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

  5. Converging Redundant Sensor Network Information for Improved Building Control

    SciTech Connect (OSTI)

    Dale Tiller; D. Phil; Gregor Henze; Xin Guo

    2007-09-30

    This project investigated the development and application of sensor networks to enhance building energy management and security. Commercial, industrial and residential buildings often incorporate systems used to determine occupancy, but current sensor technology and control algorithms limit the effectiveness of these systems. For example, most of these systems rely on single monitoring points to detect occupancy, when more than one monitoring point could improve system performance. Phase I of the project focused on instrumentation and data collection. During the initial project phase, a new occupancy detection system was developed, commissioned and installed in a sample of private offices and open-plan office workstations. Data acquisition systems were developed and deployed to collect data on space occupancy profiles. Phase II of the project demonstrated that a network of several sensors provides a more accurate measure of occupancy than is possible using systems based on single monitoring points. This phase also established that analysis algorithms could be applied to the sensor network data stream to improve the accuracy of system performance in energy management and security applications. In Phase III of the project, the sensor network from Phase I was complemented by a control strategy developed based on the results from the first two project phases: this controller was implemented in a small sample of work areas, and applied to lighting control. Two additional technologies were developed in the course of completing the project. A prototype web-based display that portrays the current status of each detector in a sensor network monitoring building occupancy was designed and implemented. A new capability that enables occupancy sensors in a sensor network to dynamically set the 'time delay' interval based on ongoing occupant behavior in the space was also designed and implemented.

  6. Converging Redundant Sensor Network Information for Improved Building Control

    SciTech Connect (OSTI)

    Dale K. Tiller; Gregor P. Henze

    2005-12-01

    This project is investigating the development and application of sensor networks to enhance building energy management and security. Commercial, industrial and residential buildings often incorporate systems used to determine occupancy, but current sensor technology and control algorithms limit the effectiveness of these systems. For example, most of these systems rely on single monitoring points to detect occupancy, when more than one monitoring point would improve system performance. Phase I of the project focused on instrumentation and data collection. In Phase I, a new occupancy detection system was developed, commissioned and installed in a sample of private offices and open-plan office workstations. Data acquisition systems were developed and deployed to collect data on space occupancy profiles. In phase II of the project, described in this report, we demonstrate that a network of several sensors provides a more accurate measure of occupancy than is possible using systems based on single monitoring points. We also establish that analysis algorithms can be applied to the sensor network data stream to improve the accuracy of system performance in energy management and security applications, and show that it may be possible to use sensor network pulse rate to distinguish the number of occupants in a space. Finally, in this phase of the project we also developed a prototype web-based display that portrays the current status of each detector in a sensor network monitoring building occupancy. This basic capability will be extended in the future by applying an algorithm-based inference to the sensor network data stream, so that the web page displays the likelihood that each monitored office or area is occupied, as a supplement to the actual status of each sensor.

  7. Buildings Energy Data Book: 7.2 Federal Tax Incentives

    Buildings Energy Data Book [EERE]

    2 Tax Incentive of the American Recovery and Reinvestment Act of 2009 Envelope Improvements to Existing Homes (1) --Increases existing tax credit to 30% of costs up to $1,500 to upgrade building envelope to be compliant with codes for new construction. Upgrades to building shell, HVAC system, and windows and doors may qualify. Improvements must be installed between January 1, 2008 and December 31, 2010. Renewable Energy Production Tax Credits --Tax credit to 30% of costs for installation of

  8. Acoustic Building Infiltration Measurement System (ABIMS)

    Broader source: Energy.gov [DOE]

    The Acoustic Building Infilitration Measurement System project is developing an acoustic method of measuring the infiltration of a building envelope.

  9. Advancing Solutions to Improve the Energy Efficiency of Commercial Buildings FOA Webinar (Text Version)

    Broader source: Energy.gov [DOE]

    Below is the text version of the webinar, Advancing Solutions to Improve the Energy Efficiency of Commercial Buildings FOA, presented by Kristen Taddonio of the Commercial Buildings program in...

  10. Team Middlebury On How to Create Buildings That Improve Communities...

    Energy Savers [EERE]

    Because of my upbringing in Brooklyn, NY, where electricity flows invisibly throughout apartment buildings and skyscrapers as opposed to solar panels or windmills, I didn't know ...

  11. Core Research Support for BTO Windows/Envelope Programs | Department...

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

    Windows, as a major element of the building envelope, are an important factor in the overall energy use of buildings. Heat transfer through windows accounts for 4 quads of primary ...

  12. Buildings

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

    Historically, only Industrial Facilities (ISO 50003 Industry - light to medium and ... is allowing Commercial Buildings (ISO 50003 - Buildings and Building Complexes) ...

  13. Building America Case study: Advanced Controls Improve Performance...

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

    Advanced controls improve the energy performance of combi systems. Combi energy effciency ... The controls improve effciency by allowing the system to operate at lower average return ...

  14. Improving the Energy Performance of New and Existing Commercial Buildings: A DOE Status Report

    SciTech Connect (OSTI)

    Holuj, Brian; Nicholls, Andrew K.; Sandahl, Linda J.; Torcellini, Paul

    2010-08-01

    It is technically and economically feasible for our nations commercial buildings to consume substantially less energy--and produce substantially less carbon dioxide--than they do. Yet owners of existing buildings are not taking full advantage of todays best energy saving technologies and practices; and developers of new buildings are, most often, constructing to minimum energy codes rather than pushing for greater efficiency. The U.S. Department of Energy (DOE) is addressing these challenges by developing cost-effective technologies and practices that deliver significant improvements in commercial building performance. DOE, through its Commercial Building Initiative, is also collaborating with industry-leading companies and organizations to demonstrate, monitor, and help move these technologies from the laboratory to the marketplace. Ultimately, DOEs dual strategy of pairing aggressive research and development with market engagement, demonstration, and deployment will dramatically improve the energy performance of new and existing commercial buildings throughout the nation.

  15. Building America Case study: Advanced Controls Improve Performance...

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

    Advanced controls improve the energy performance of combi systems. Combi energy effciency is largely a factor of (1) the water temperature returning to the heating plant from the ...

  16. Proposed Training Plan to Improve Building Energy Efficiency in Vietnam

    SciTech Connect (OSTI)

    Yu, Sha; Evans, Meredydd

    2013-01-01

    Vietnam has experienced fast growth in energy consumption in the past decade, with annual growth rate of over 12 percent. This is accompanied by the fast increase in commercial energy use, driven by rapid industrialization, expansion of motorized transport, and increasing energy use in residential and commercial buildings. Meanwhile, Vietnam is experiencing rapid urbanization at a rate of 3.4 percent per year; and the majority of the growth centered in and near major cities such as Hanoi and Ho Chi Minh City. This has resulted in a construction boom in Vietnam.

  17. Funding Opportunity Webinar- Advancing Solutions To Improve the Energy Efficiency of US Commercial Buildings

    Broader source: Energy.gov [DOE]

    This webinar provides an overview of the DOE Funding Opportunity Announcement DE-FOA-0001168, "Advancing Solutions to Improve the Energy Efficiency of U.S. Commercial Buildings," which seeks to fund the scale-up of promising solutions to the market barriers that hinder the growth of energy efficiency in the commercial building sector.

  18. Improving U.S. Residential Buildings- DOEs Approach

    Broader source: Energy.gov [DOE]

    Provides an overview of DOE's strategy and efforts to improve residential energy efficiency across the U.S., presented by Dr. Kathleen Hogan, U.S. Department of Energy, July 10, 2012.

  19. Buildings Energy Data Book: 2.6 Residential Home Improvement

    Buildings Energy Data Book [EERE]

    Survey and DOC in the Survey of Expenditures for Residential Improvements and Repairs. ... 2009, Table A-2, p. 30; and EIA, Annual Energy Review 2010, October 2011, Appendix D, p. ...

  20. Buildings Energy Data Book: 2.6 Residential Home Improvement

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

    Improving America's Housing, 2011, Table A-2, p. 28 for 2009; and EIA, Annual Energy Review 2010, Oct. 2011, Appendix D, p. 353 for GDP and price deflators. 22,616 51,010 ...

  1. Buildings Energy Data Book: 2.6 Residential Home Improvement

    Buildings Energy Data Book [EERE]

    Improving America's Housing, 2011, Table A-2, p. 28 for 2009; and EIA, Annual Energy Review 2010, Oct. 2011, Appendix D, p. 353 for GDP and price deflators. 33,263 186,326 ...

  2. Jamming Out to Energy Data: Building Apps That Improve Energy Literacy |

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

    Department of Energy Jamming Out to Energy Data: Building Apps That Improve Energy Literacy Jamming Out to Energy Data: Building Apps That Improve Energy Literacy March 27, 2014 - 9:41am Addthis Designers hard at work turning energy data into useful apps at a hackathon in Washington earlier this year. Designers hard at work turning energy data into useful apps at a hackathon in Washington earlier this year. Erin Twamley Project and Web Manager, Education & Workforce Development Lauren

  3. High Performance Healthcare Buildings: A Roadmap to Improved Energy Efficiency

    SciTech Connect (OSTI)

    Singer, Brett C.; Tschudi, William F.

    2009-09-08

    This document presents a road map for improving the energy efficiency of hospitals and other healthcare facilities. The report compiles input from a broad array of experts in healthcare facility design and operations. The initial section lists challenges and barriers to efficiency improvements in healthcare. Opportunities are organized around the following ten themes: understanding and benchmarking energy use; best practices and training; codes and standards; improved utilization of existing HVAC designs and technology; innovation in HVAC design and technology; electrical system design; lighting; medical equipment and process loads; economic and organizational issues; and the design of next generation sustainable hospitals. Achieving energy efficiency will require a broad set of activities including research, development, deployment, demonstration, training, etc., organized around 48 specific objectives. Specific activities are prioritized in consideration of potential impact, likelihood of near- or mid-term feasibility and anticipated cost-effectiveness. This document is intended to be broad in consideration though not exhaustive. Opportunities and needs are identified and described with the goal of focusing efforts and resources.

  4. Technology Solutions for New Manufactured Homes, Idaho, Oregon, and Washington Manufactured Home Builders (Fact Sheet), Building America Case Study: Whole-House Solutions for New Homes, Building Technologies Office (BTO)

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

    Technology Solutions for New Manufactured Homes Idaho, Oregon, and Washington Manufactured Home Builders PROJECT INFORMATION Project Name: High Performance Manufactured Home Prototyping and Construction Development Location: Pacific Northwest states (ID, OR, and WA) Partners: Northwest Manufactured Housing industry Building America Partnership for Improved Residential Construction, www.ba-pirc.org Building Components: HVAC, building envelope, lighting, and water heating Application: New, single

  5. Buildings | NREL

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

    1.1 Buildings Sector Energy Consumption 1.2 Building Sector Expenditures 1.3 Value of Construction and Research 1.4 Environmental Data 1.5 Generic Fuel Quad and Comparison 1.6 Embodied Energy of Building Assemblies 2The Residential Sector 3Commercial Sector 4Federal Sector 5Envelope and Equipment 6Energy Supply 7Laws, Energy Codes, and Standards 8Water 9Market Transformation Glossary Acronyms and Initialisms Technology Descriptions Building Descriptions Other Data Books Biomass Energy

  6. Improving energy efficiency via smart building energy management systems. A comparison with policy measures

    SciTech Connect (OSTI)

    Rocha, Paula; Siddiqui, Afzal; Stadler, Michael

    2014-12-09

    In this study, to foster the transition to more sustainable energy systems, policymakers have been approving measures to improve energy efficiency as well as promoting smart grids. In this setting, building managers are encouraged to adapt their energy operations to real-time market and weather conditions. Yet, most fail to do so as they rely on conventional building energy management systems (BEMS) that have static temperature set points for heating and cooling equipment. In this paper, we investigate how effective policy measures are at improving building-level energy efficiency compared to a smart BEMS with dynamic temperature set points. To this end, we present an integrated optimisation model mimicking the smart BEMS that combines decisions on heating and cooling systems operations with decisions on energy sourcing. Using data from an Austrian and a Spanish building, we find that the smart BEMS results in greater reduction in energy consumption than a conventional BEMS with policy measures.

  7. Preserving Envelope Efficiency in Performance Based Code Compliance

    SciTech Connect (OSTI)

    Thornton, Brian A.; Sullivan, Greg P.; Rosenberg, Michael I.; Baechler, Michael C.

    2015-06-20

    The City of Seattle 2012 Energy Code (Seattle 2014), one of the most progressive in the country, is under revision for its 2015 edition. Additionally, city personnel participate in the development of the next generation of the Washington State Energy Code and the International Energy Code. Seattle has pledged carbon neutrality by 2050 including buildings, transportation and other sectors. The United States Department of Energy (DOE), through Pacific Northwest National Laboratory (PNNL) provided technical assistance to Seattle in order to understand the implications of one potential direction for its code development, limiting trade-offs of long-lived building envelope components less stringent than the prescriptive code envelope requirements by using better-than-code but shorter-lived lighting and heating, ventilation, and air-conditioning (HVAC) components through the total building performance modeled energy compliance path. Weaker building envelopes can permanently limit building energy performance even as lighting and HVAC components are upgraded over time, because retrofitting the envelope is less likely and more expensive. Weaker building envelopes may also increase the required size, cost and complexity of HVAC systems and may adversely affect occupant comfort. This report presents the results of this technical assistance. The use of modeled energy code compliance to trade-off envelope components with shorter-lived building components is not unique to Seattle and the lessons and possible solutions described in this report have implications for other jurisdictions and energy codes.

  8. Identification of Energy Efficiency Opportunities through Building Data Analysis and Achieving Energy Savings through Improved Controls

    SciTech Connect (OSTI)

    Katipamula, Srinivas; Taasevigen, Danny J.; Koran, Bill

    2014-09-04

    This chapter will highlight analysis techniques to identify energy efficiency opportunities to improve operations and controls. A free tool, Energy Charting and Metrics (ECAM), will be used to assist in the analysis of whole-building, sub-metered, and/or data from the building automation system (BAS). Appendix A describes the features of ECAM in more depth, and also provide instructions for downloading ECAM and all resources pertaining to using ECAM.

  9. Soiling of building envelope surfaces and its effect on solar reflectance – Part II: Development of an accelerated aging method for roofing materials

    SciTech Connect (OSTI)

    Sleiman, Mohamad; Kirchstetter, Thomas W.; Berdahl, Paul; Gilbert, Haley E.; Quelen, Sarah; Marlot, Lea; Preble, Chelsea V.; Chen, Sharon; Montalbano, Amandine; Rosseler, Olivier; Akbari, Hashem; Levinson, Ronnen; Destaillats, Hugo

    2014-01-09

    Highly reflective roofs can decrease the energy required for building air conditioning, help mitigate the urban heat island effect, and slow global warming. However, these benefits are diminished by soiling and weathering processes that reduce the solar reflectance of most roofing materials. Soiling results from the deposition of atmospheric particulate matter and the growth of microorganisms, each of which absorb sunlight. Weathering of materials occurs with exposure to water, sunlight, and high temperatures. This study developed an accelerated aging method that incorporates features of soiling and weathering. The method sprays a calibrated aqueous soiling mixture of dust minerals, black carbon, humic acid, and salts onto preconditioned coupons of roofing materials, then subjects the soiled coupons to cycles of ultraviolet radiation, heat and water in a commercial weatherometer. Three soiling mixtures were optimized to reproduce the site-specific solar spectral reflectance features of roofing products exposed for 3 years in a hot and humid climate (Miami, Florida); a hot and dry climate (Phoenix, Arizona); and a polluted atmosphere in a temperate climate (Cleveland, Ohio). A fourth mixture was designed to reproduce the three-site average values of solar reflectance and thermal emittance attained after 3 years of natural exposure, which the Cool Roof Rating Council (CRRC) uses to rate roofing products sold in the US. This accelerated aging method was applied to 25 products₋single ply membranes, factory and field applied coatings, tiles, modified bitumen cap sheets, and asphalt shingles₋and reproduced in 3 days the CRRC's 3-year aged values of solar reflectance. In conclusion, this accelerated aging method can be used to speed the evaluation and rating of new cool roofing materials.

  10. Building

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

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

  11. Building America Case Study: Project Overcoat: Airtightness Strategies...

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

    Partners: Cocoon, cocoon-solutions.com NorthernSTAR Building America Partnership, environment.umn.edu formsprojectview.php?id273 Building Components: Building envelope, roof...

  12. Buildings Energy Data Book: 7.2 Federal Tax Incentives

    Buildings Energy Data Book [EERE]

    3 Tax Incentives of the Emergency Economic Stabilization Act of 2008 (1) New Homes --Extends tax credits for efficient new homes to December 31, 2009. Envelope Improvements to Existing Homes --Reinstates 10% tax credit for building shell, HVAC and windows to include installations during 2009. Commercial Buildings --Extends tax deductions for efficiency upgrades in commercial buildings to December 31, 2013. Note(s): Source(s): 1) Tax incentives detailed are extensions to incentives found in the

  13. Improving the Accuracy of Software-Based Energy Analysis for Residential Buildings (Presentation)

    SciTech Connect (OSTI)

    Polly, B.

    2011-09-01

    This presentation describes the basic components of software-based energy analysis for residential buildings, explores the concepts of 'error' and 'accuracy' when analysis predictions are compared to measured data, and explains how NREL is working to continuously improve the accuracy of energy analysis methods.

  14. Building.

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

    Plant in ITER refers to plant systems located outside the Tokamak Building. A thick wall ... The cooling water system provides for the rejection of heat from a variety of ITER systems ...

  15. FRACTIONAL CRYSTALLIZATION FEED ENVELOPE

    SciTech Connect (OSTI)

    HERTING DL

    2008-03-19

    Laboratory work was completed on a set of evaporation tests designed to establish a feed envelope for the fractional crystallization process. The feed envelope defines chemical concentration limits within which the process can be operated successfully. All 38 runs in the half-factorial design matrix were completed successfully, based on the qualitative definition of success. There is no feed composition likely to be derived from saltcake dissolution that would cause the fractional crystallization process to not meet acceptable performance requirements. However, some compositions clearly would provide more successful operation than other compositions.

  16. Improving Building Energy Simulation Programs Through Diagnostic Testing (Fact Sheet), NREL Highlights, Research & Development, NREL (National Renewable Energy Laboratory)

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

    test procedure evaluates quality and accuracy of energy analysis tools for the residential building retrofit market. Reducing the energy use of existing homes in the United States offers significant energy-saving opportunities, which can be identified through building simulation software tools that calculate optimal packages of efficiency measures. To improve the accuracy of energy analysis for residential buildings, the National Renewable Energy Laboratory's (NREL) Buildings Research team

  17. Jacketed lamp bulb envelope

    DOE Patents [OSTI]

    MacLennan, Donald A.; Turner, Brian P.; Gitsevich, Aleksandr; Bass, Gary K.; Dolan, James T.; Kipling, Kent; Kirkpatrick, Douglas A.; Leng, Yongzhang; Levin, Izrail; Roy, Robert J.; Shanks, Bruce; Smith, Malcolm; Trimble, William C.; Tsai, Peter

    2001-01-01

    A jacketed lamp bulb envelope includes a ceramic cup having an open end and a partially closed end, the partially closed end defining an aperture, a lamp bulb positioned inside the ceramic cup abutting the aperture, and a reflective ceramic material at least partially covering a portion of the bulb not abutting the aperture. The reflective ceramic material may substantially fill an interior volume of the ceramic cup not occupied by the bulb. The ceramic cup may include a structural feature for aiding in alignment of the jacketed lamp bulb envelope in a lamp. The ceramic cup may include an external flange about a periphery thereof. One example of a jacketed lamp bulb envelope includes a ceramic cup having an open end and a closed end, a ceramic washer covering the open end of the ceramic cup, the washer defining an aperture therethrough, a lamp bulb positioned inside the ceramic cup abutting the aperture, and a reflective ceramic material filling an interior volume of the ceramic cup not occupied by the bulb. A method of packing a jacketed lamp bulb envelope of the type comprising a ceramic cup with a lamp bulb disposed therein includes the steps of filling the ceramic cup with a flowable slurry of reflective material, and applying centrifugal force to the cup to pack the reflective material therein.

  18. Invitation: Commercial Building Envelope Technology Webinar Series...

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

    Technology Webinar Series May 17, 2016 1:00PM to 1:45PM EDT Oak Ridge National Lab logo. ... You are invited to the first webinar on Tuesday, May 17, from 1 to 1:45 p.m. (EST). This ...

  19. Building America Envelope and Advanced HVAC Research

    Broader source: Energy.gov [DOE]

    Lead Performer: Oak Ridge National Laboratory (ORNL) – Oak Ridge, TNProject Term: FY 2016 - FY 2018Funding Type: Direct Lab Funding

  20. Improving energy efficiency via smart building energy management systems. A comparison with policy measures

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

    Rocha, Paula; Siddiqui, Afzal; Stadler, Michael

    2014-12-09

    In this study, to foster the transition to more sustainable energy systems, policymakers have been approving measures to improve energy efficiency as well as promoting smart grids. In this setting, building managers are encouraged to adapt their energy operations to real-time market and weather conditions. Yet, most fail to do so as they rely on conventional building energy management systems (BEMS) that have static temperature set points for heating and cooling equipment. In this paper, we investigate how effective policy measures are at improving building-level energy efficiency compared to a smart BEMS with dynamic temperature set points. To this end,more » we present an integrated optimisation model mimicking the smart BEMS that combines decisions on heating and cooling systems operations with decisions on energy sourcing. Using data from an Austrian and a Spanish building, we find that the smart BEMS results in greater reduction in energy consumption than a conventional BEMS with policy measures.« less

  1. Buildings Energy Data Book: 7.2 Federal Tax Incentives

    Buildings Energy Data Book [EERE]

    5 Tax Incentives of the Energy Policy Act of 2005 New Homes --Builders who build homes that use 50% less energy for space heating and cooling than the IECC 2003 are eligible for a $2,000 tax credit per home. --Manufactured housing builder that either uses 30% less energy than this reference code or that meet the then-current ENERGY STAR criteria are eligible for $1,000 tax credit per home. At least 10% of energy savings must be obtained through building envelope improvements. Envelope

  2. Assessing and Improving the Accuracy of Energy Analysis for Residential Buildings

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

    Assessing and Improving the Accuracy of Energy Analysis for Residential Buildings B. Polly, N. Kruis, and D. Roberts July 2011 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, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product,

  3. Progress on Enabling an Interactive Conversation Between Commercial Building Occupants and Their Building To Improve Comfort and Energy Efficiency: Preprint

    SciTech Connect (OSTI)

    Schott, M.; Scheib, J.; Long, N.; Fleming, K.; Benne, K.; Brackney, L.

    2012-06-01

    Many studies have reported energy savings after installing a dashboard, but dashboards provide neither individual feedback to the occupant nor the ability to report individual comfort. The Building Agent (BA) provides an interface to engage the occupant in a conversation with the building control system and the building engineer. Preliminary outcomes of the BA-enabled feedback loop are presented, and the effectiveness of the three display modes will be compared to other dashboard studies to baseline energy savings in future research.

  4. Mandating better buildings: a global review of building codes and prospects for improvement in the United States

    SciTech Connect (OSTI)

    Sun, Xiaojing; Brown, Marilyn A.; Cox, Matt; Jackson, Roderick

    2015-03-11

    This paper provides a global overview of the design, implementation, and evolution of building energy codes. Reflecting alternative policy goals, building energy codes differ significantly across the United States, the European Union, and China. This review uncovers numerous innovative practices including greenhouse gas emissions caps per square meter of building space, energy performance certificates with retrofit recommendations, and inclusion of renewable energy to achieve “nearly zero-energy buildings”. These innovations motivated an assessment of an aggressive commercial building code applied to all US states, requiring both new construction and buildings with major modifications to comply with the latest version of the ASHRAE 90.1 Standards. Using the National Energy Modeling System (NEMS), we estimate that by 2035, such building codes in the United States could reduce energy for space heating, cooling, water heating and lighting in commercial buildings by 16%, 15%, 20% and 5%, respectively. Impacts on different fuels and building types, energy rates and bills as well as pollution emission reductions are also examined.

  5. Mandating better buildings: a global review of building codes and prospects for improvement in the United States

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

    Sun, Xiaojing; Brown, Marilyn A.; Cox, Matt; Jackson, Roderick

    2015-03-11

    This paper provides a global overview of the design, implementation, and evolution of building energy codes. Reflecting alternative policy goals, building energy codes differ significantly across the United States, the European Union, and China. This review uncovers numerous innovative practices including greenhouse gas emissions caps per square meter of building space, energy performance certificates with retrofit recommendations, and inclusion of renewable energy to achieve “nearly zero-energy buildings”. These innovations motivated an assessment of an aggressive commercial building code applied to all US states, requiring both new construction and buildings with major modifications to comply with the latest version of themore » ASHRAE 90.1 Standards. Using the National Energy Modeling System (NEMS), we estimate that by 2035, such building codes in the United States could reduce energy for space heating, cooling, water heating and lighting in commercial buildings by 16%, 15%, 20% and 5%, respectively. Impacts on different fuels and building types, energy rates and bills as well as pollution emission reductions are also examined.« less

  6. Building Technologies Office Overview

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

    Roland Risser Director, Building Technologies Office Building Technologies Office Energy Efficiency Starts Here. 2 Building Technologies Office Integrated Approach: Improving ...

  7. Energy Department Helps Cities, Counties Evaluate and Improve Building Energy Performance

    Broader source: Energy.gov [DOE]

    Many states, counties, and cities are implementing their own building energy benchmarking and transparency policies to improve ways owners, tenants and others can access a building’s energy use. The main goal is to increase the awareness of energy usage to encourage businesses and communities to save energy and reduce pollution through efficiency upgrades while increasing the real estate valuation for high performing buildings. To help jurisdictions measure the impact of their benchmarking and transparency policy efforts, the Energy Department recently released the Benchmarking & Transparency Policy and Program Impact Evaluation Handbook. It walks jurisdictions through the evaluation steps, providing both a strategic planning framework and standard methodologies to measure the impacts of benchmarking programs and policies.

  8. Renewable Energy Requirements for Future Building Codes: Energy Generation and Economic Analysis

    SciTech Connect (OSTI)

    Russo, Bryan J.; Weimar, Mark R.; Dillon, Heather E.

    2011-09-30

    As the model energy codes are improved to reach efficiency levels 50 percent greater than current codes, installation of on-site renewable energy generation is likely to become a code requirement. This requirement will be needed because traditional mechanisms for code improvement, including the building envelope, mechanical systems, and lighting, have been maximized at the most cost-effective limit.

  9. 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.

  10. Refrigerated cryogenic envelope

    DOE Patents [OSTI]

    Loudon, John D.

    1976-11-16

    An elongated cryogenic envelope including an outer tube and an inner tube coaxially spaced within said inner tube so that the space therebetween forms a vacuum chamber for holding a vacuum. The inner and outer tubes are provided with means for expanding or contracting during thermal changes. A shield is located in the vacuum chamber intermediate the inner and outer tubes; and, a refrigeration tube for directing refrigeration to the shield is coiled about at least a portion of the inner tube within the vacuum chamber to permit the refrigeration tube to expand or contract along its length during thermal changes within said vacuum chamber.

  11. Opportunities for Building America Research to Address Energy...

    Energy Savers [EERE]

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

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

    SciTech Connect (OSTI)

    Not Available

    2014-12-01

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

  13. Commercial Building Energy Asset Scoring Tool

    Office of Energy Efficiency and Renewable Energy (EERE)

    This Asset Scoring Tool will guide your data collection, store your building information, and generate Asset Scores and system evaluations for your building envelope and building systems. The Asset...

  14. Buildings Energy Data Book

    Buildings Energy Data Book [EERE]

    4.1 Federal Buildings Energy Consumption 4.2 Federal Buildings and Facilities Characteristics 4.3 Federal Buildings and Facilities Expenditures 4.4 Legislation Affecting Energy Consumption of Federal Buildings and Facilities 5Envelope and Equipment 6Energy Supply 7Laws, Energy Codes, and Standards 8Water 9Market Transformation Glossary Acronyms and Initialisms Technology Descriptions Building Descriptions Other Data Books Biomass Energy Transportation Energy Power Technologies Hydrogen Download

  15. Building America Technology Solutions for New and Existing Homes: Cold Climate Foundation Wall Hygrothermal Research Facility (Fact Sheet)

    Broader source: Energy.gov [DOE]

    This case study describes the research conducted at the University of Minnesota’s Cloquet Residential Research Facility (CRRF) in northern Minnesota, which features more than 2,500 ft2 of below-grade space for building systems foundation hygrothermal research. Here, the NorthernSTAR Building America Partnership team researches ways to improve the energy efficiency of the building envelope, including wall assemblies, basements, roofs, insulation, and air leakage.

  16. Technical Highlight: NREL Improves Building Energy Simulation Programs Through Diagnostic Testing

    SciTech Connect (OSTI)

    Polly, B.

    2012-01-09

    This technical highlight describes NREL research to develop Building Energy Simulation Test for Existing Homes (BESTEST-EX) to increase the quality and accuracy of energy analysis tools for the building retrofit market.

  17. Improving Building Performance at Urban Scale with a Framework for Real-time Data Sharing

    SciTech Connect (OSTI)

    Pang, Xiufeng; Hong, Tianzhen; Piette, Mary Ann

    2013-06-03

    This paper describes work in progress toward an urban-scale system aiming to reduce energy use in neighboring buildings by providing three components: a database for accessing past and present weather data from high quality weather stations; a network for communicating energy-saving strategies between building owners; and a set of modeling tools for real-time building energy simulation.

  18. Buildings Energy Data Book

    Buildings Energy Data Book [EERE]

    1.1 Buildings Sector Energy Consumption 1.2 Building Sector Expenditures 1.3 Value of Construction and Research 1.4 Environmental Data 1.5 Generic Fuel Quad and Comparison 1.6 Embodied Energy of Building Assemblies 2The Residential Sector 3Commercial Sector 4Federal Sector 5Envelope and Equipment 6Energy Supply 7Laws, Energy Codes, and Standards 8Water 9Market Transformation Glossary Acronyms and Initialisms Technology Descriptions Building Descriptions Other Data Books Biomass Energy

  19. Multifamily Envelope Leakage Model

    SciTech Connect (OSTI)

    Faakye, O.; Griffiths, D.

    2015-05-01

    The objective of the 2013 research project was to develop the model for predicting fully guarded test results (FGT), using unguarded test data and specific building features of apartment units. The model developed has a coefficient of determination R2 value of 0.53 with a root mean square error (RMSE) of 0.13. Both statistical metrics indicate that the model is relatively strong. When tested against data that was not included in the development of the model, prediction accuracy was within 19%, which is reasonable given that seasonal differences in blower door measurements can vary by as much as 25%.

  20. Optimisation of buildings' solar irradiation availability

    SciTech Connect (OSTI)

    Kaempf, Jerome Henri; Montavon, Marylene; Bunyesc, Josep; Robinson, Darren; Bolliger, Raffaele

    2010-04-15

    In order to improve the sustainability of new and existing urban settlements it is desirable to maximise the utilisation of the solar energy incident on the building envelope, whether by passive or active means. To this end we have coupled a multi-objective optimisation algorithm with the backwards ray tracing program RADIANCE which itself uses a cumulative sky model for the computation of incident irradiation (W h/m{sup 2}) in a single simulation. The parameters to optimise are geometric (the height of buildings up to their facade and the height and orientation of roofs), but with the constraint of maintaining an overall built volume, and the objective function is heating season solar irradiation offset by envelope heat losses. This methodology has been applied to a range of urban typologies and produces readily interpretable results. The focus of this work is on the design of new urban forms but the method could equally be applied to examine the relative efficiency of existing urban settlements, by comparison of existing forms with the calculated optima derived from relevant specifications of the building envelope. (author)

  1. NREL Improves Building Energy Simulation Programs Through Diagnostic Testing (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-01-01

    This technical highlight describes NREL research to develop Building Energy Simulation Test for Existing Homes (BESTEST-EX) to increase the quality and accuracy of energy analysis tools for the building retrofit market. Researchers at the National Renewable Energy Laboratory (NREL) have developed a new test procedure to increase the quality and accuracy of energy analysis tools for the building retrofit market. The Building Energy Simulation Test for Existing Homes (BESTEST-EX) is a test procedure that enables software developers to evaluate the performance of their audit tools in modeling energy use and savings in existing homes when utility bills are available for model calibration. Similar to NREL's previous energy analysis tests, such as HERS BESTEST and other BESTEST suites included in ANSI/ASHRAE Standard 140, BESTEST-EX compares software simulation findings to reference results generated with state-of-the-art simulation tools such as EnergyPlus, SUNREL, and DOE-2.1E. The BESTEST-EX methodology: (1) Tests software predictions of retrofit energy savings in existing homes; (2) Ensures building physics calculations and utility bill calibration procedures perform to a minimum standard; and (3) Quantifies impacts of uncertainties in input audit data and occupant behavior. BESTEST-EX includes building physics and utility bill calibration test cases. The diagram illustrates the utility bill calibration test cases. Participants are given input ranges and synthetic utility bills. Software tools use the utility bills to calibrate key model inputs and predict energy savings for the retrofit cases. Participant energy savings predictions using calibrated models are compared to NREL predictions using state-of-the-art building energy simulation programs.

  2. Expert Meeting Report: Advanced Envelope Research for Factory Built Housing

    SciTech Connect (OSTI)

    Levy, E.; Mullens, M.; Tompos, E.; Kessler, B.; Rath, P.

    2012-04-01

    This report provides information about the Building America expert meeting on advanced envelope research for factory built housing, hosted by the ARIES Collaborative on October 11, 2011, in Phoenix, Arizona. The goals of this meeting were to provide a comprehensive solution to the use of three previously selected advanced alternatives for factory-built wall construction, assess each option focusing on major issues relating to viability and commercial potential, and determine additional steps are required to reach this potential.

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

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

    Building America Technology Solutions for New and Existing ... high performance, cost-effective alternative envelope designs that will meet stringent energy code requirements. ...

  4. Building America Webinar: Opportunities in Large Data Collection...

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

    This presentation is titled Multifamily Envelope Leakage Model and is included in the ... More Documents & Publications Building America Webinar: Multifamily Ventilation Strategies ...

  5. The Challenge: Improving the Energy Efficiency of Buildings Across the Nation

    Broader source: Energy.gov [DOE]

    Businesses across the country are also taking steps to improve their energy efficiency and reduce costs for American companies.

  6. Solar envelope zoning: application to the city planning process. Los Angeles case study

    SciTech Connect (OSTI)

    Not Available

    1980-06-01

    Solar envelope zoning represents a promising approach to solar access protection. A solar envelope defines the volume within which a building will not shade adjacent lots or buildings. Other solar access protection techniques, such as privately negotiated easements, continue to be tested and implemented but none offer the degree of comprehensiveness evident in this approach. Here, the City of Los Angeles, through the Mayor's Energy Office, the City Planning Department, and the City Attorney's Office, examine the feasibility of translating the concept of solar envelopes into zoning techniques. They concluded that envelope zoning is a fair and consistent method of guaranteeing solar access, but problems of complexity and uncertainty may limit its usefulness. Envelope zoning may be inappropriate for the development of high density centers and for more restrictive community plans. Aids or tools to administer envelope zoning need to be developed. Finally, some combination of approaches, including publicly recorded easements, subdivision approval and envelope zoning, need to be adopted to encourage solar use in cities. (MHR)

  7. Improved data and procedures needed for development and implementation of building energy performance standards

    SciTech Connect (OSTI)

    Staats, E.B.

    1980-12-23

    Energy conservation standards for new buildings being developed by the DOE are discussed. Specifically, it addresses: (1) what still needs to be done before sound standards can be issued, (2) the need to transfer implementation responsibility for the standards from the US HUD to the DOE, and (3) the inappropriateness of the proposed sanction for noncompliance in view of the large decrease in expected energy savings.

  8. Buildings*","Buildings

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

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

  9. An Assessment of Envelope Measures in Mild Climate Deep Energy Retrofits

    SciTech Connect (OSTI)

    Walker, Iain; Less, Brennan

    2014-06-01

    Energy end-uses and interior comfort conditions have been monitored in 11 Deep Energy Retrofits (DERs) in a mild marine climate. Two broad categories of DER envelope were identified: first, bringing homes up to current code levels of insulation and airtightness, and second, enhanced retrofits that go beyond these code requirements. The efficacy of envelope measures in DERs was difficult to determine, due to the intermingled effects of enclosure improvements, HVAC system upgrades and changes in interior comfort conditions. While energy reductions in these project homes could not be assigned to specific improvements, the combined effects of changes in enclosure, HVAC system and comfort led to average heating energy reductions of 76percent (12,937 kWh) in the five DERs with pre-retrofit data, or 80percent (5.9 kWh/ft2) when normalized by floor area. Overall, net-site energy reductions averaged 58percent (15,966 kWh; n=5), and DERs with code-style envelopes achieved average net-site energy reductions of 65percent (18,923 kWh; n=4). In some homes, the heating energy reductions were actually larger than the whole house reductions that were achieved, which suggests that substantial additional energy uses were added to the home during the retrofit that offset some heating savings. Heating system operation and energy use was shown to vary inconsistently with outdoor conditions, suggesting that most DERs were not thermostatically controlled and that occupants were engaged in managing the indoor environmental conditions. Indoor temperatures maintained in these DERs were highly variable, and no project home consistently provided conditions within the ASHRAE Standard 55-2010 heating season comfort zone. Thermal comfort and heating system operation had a large impact on performance and were found to depend upon the occupant activities, so DERs should be designed with the occupants needs and patterns of consumption in mind. Beyond-code building envelopes were not found to be

  10. Analysis of federal policy options for improving US lighting energy efficiency: Commercial and residential buildings

    SciTech Connect (OSTI)

    Atkinson, B.A.; McMahon, J.E.; Mills, E.; Chan, P.; Chan, T.W.; Eto, J.H.; Jennings, J.D.; Koomey, J.G.; Lo, K.W.; Lecar, M.; Price, L.; Rubinstein, F.; Sezgen, O.; Wenzel, T.

    1992-12-01

    The US Department of Energy (DOE) has recognized the opportunity to achieve energy, economic, and environmental benefits by promoting energy-efficient lighting through federal policies, including lighting standards, financial incentives, and information programs. To assist in this process, the Office of Conservation and Renewable Energy`s Office of Codes and Standards invited Lawrence Berkeley Laboratory to assess prospective national impacts for a variety of policy options. Some progress has already been made in developing lighting policies at both the federal and state levels. The US DOE`s Office of Building Technologies has evaluated lighting efficiency incentives as part of its analysis for the National Energy Strategy. Fluorescent and incandescent lamp standards are included in the national Energy Policy Act of 1992 (P.L. 102-486, October 24, 1992). A few states have analyzed or implemented lamp and luminaire standards. Many policy-related issues merit further investigation. For example, there is considerable debate over issues such as mandatory or voluntary standards versus component labeling and other education-oriented strategies. Several different technologies are involved that interact with each other-lamps (incandescent, compact fluorescent, and HID), ballasts (for fluorescent and HID lamps), and fixtures with reflectors and lenses. Control systems and operation patterns must also be considered (timers, automated dimming, or occupancy sensors). Lighting applications are diverse, ranging from offices, restaurants, hallways, hospital operating rooms, to exterior lights. Lighting energy use influences heating and cooling requirements in buildings. Successful lighting system design must also address interactions between architectural design elements and daylighting availability. Proper system installation and ongoing operation and maintenance are crucial. The economic aspects of the preceding points must also be considered for policy making.

  11. Analysis of federal policy options for improving US lighting energy efficiency: Commercial and residential buildings

    SciTech Connect (OSTI)

    Atkinson, B.A.; McMahon, J.E.; Mills, E.; Chan, P.; Chan, T.W.; Eto, J.H.; Jennings, J.D.; Koomey, J.G.; Lo, K.W.; Lecar, M.; Price, L.; Rubinstein, F.; Sezgen, O.; Wenzel, T.

    1992-12-01

    The US Department of Energy (DOE) has recognized the opportunity to achieve energy, economic, and environmental benefits by promoting energy-efficient lighting through federal policies, including lighting standards, financial incentives, and information programs. To assist in this process, the Office of Conservation and Renewable Energy's Office of Codes and Standards invited Lawrence Berkeley Laboratory to assess prospective national impacts for a variety of policy options. Some progress has already been made in developing lighting policies at both the federal and state levels. The US DOE's Office of Building Technologies has evaluated lighting efficiency incentives as part of its analysis for the National Energy Strategy. Fluorescent and incandescent lamp standards are included in the national Energy Policy Act of 1992 (P.L. 102-486, October 24, 1992). A few states have analyzed or implemented lamp and luminaire standards. Many policy-related issues merit further investigation. For example, there is considerable debate over issues such as mandatory or voluntary standards versus component labeling and other education-oriented strategies. Several different technologies are involved that interact with each other-lamps (incandescent, compact fluorescent, and HID), ballasts (for fluorescent and HID lamps), and fixtures with reflectors and lenses. Control systems and operation patterns must also be considered (timers, automated dimming, or occupancy sensors). Lighting applications are diverse, ranging from offices, restaurants, hallways, hospital operating rooms, to exterior lights. Lighting energy use influences heating and cooling requirements in buildings. Successful lighting system design must also address interactions between architectural design elements and daylighting availability. Proper system installation and ongoing operation and maintenance are crucial. The economic aspects of the preceding points must also be considered for policy making.

  12. Safeguards Envelope Progress FY10

    SciTech Connect (OSTI)

    Richard Metcalf

    2010-10-01

    The Safeguards Envelope is a strategy to determine a set of specific operating parameters within which nuclear facilities may operate to maximize safeguards effectiveness without sacrificing safety or plant efficiency. This paper details the additions to the advanced operating techniques that will be applied to real plant process monitoring (PM) data from the Idaho Chemical Processing Plant (ICPP). Research this year focused on combining disparate pieces of data together to maximize operating time with minimal downtime due to safeguards. A Chi-Square and Croiser's cumulative sum were both included as part of the new analysis. Because of a major issue with the original data, the implementation of the two new tests did not add to the existing set of tests, though limited one-variable optimization made a small increase in detection probability. Additional analysis was performed to determine if prior analysis would have caused a major security or safety operating envelope issue. It was determined that a safety issue would have resulted from the prior research, but that the security may have been increased under certain conditions.

  13. 2016 Better Buildings Summit

    Broader source: Energy.gov [DOE]

    The Better Buildings Summit is a three-day event featuring more than 100 sessions covering how to improve energy efficiency in buildings, schools, and homes.

  14. Impact assessment and performance targets for lighting and envelope systems

    SciTech Connect (OSTI)

    Sullivan, R.; Lee, E.S.; Selkowitz, S.

    1992-06-01

    Electric lighting loads and cooling from solar heat gains and from lights are the two largest components of peak demand in commercial buildings. The most cost effective demand side management solutions are generally those that directly reduce or eliminate these loads. Existing technologies can provide modest reductions, however they are typically applied an a piecemeal manner that yields less than optimal results. The full potential of existing technologies will be realized when they are commercially available in an integrated package easily specifiable by architects and engineers. Emerging technologies can also be developed to provide even greater savings and extend the savings over a greater portion of the building floor area. This report assesses achievable energy and peak demand performance in California commercial buildings with technologies available today and in the future. We characterize energy performance over a large range of building envelope and lighting conditions, both through computer simulation models and through case study measured data, and subsequently determine reasonable energy targets if building design were further optimized with integrated systems of current or new technologies. Energy targets are derived from the study after consideration of industry priorities, design constraints, market forces, energy code influence, and the state of current building stock.

  15. Soiling of building envelope surfaces and its effect on solar...

    Office of Scientific and Technical Information (OSTI)

    Subject: 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 54 ENVIRONMENTAL SCIENCES; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE Word Cloud ...

  16. Windows and Building Envelope Research and Development: Roadmap...

    Office of Environmental Management (EM)

    ... translucent panels Residential: R-7 ... modulating solar heat gain with installed cost premium targets of ... that results from installing exterior insulation ...

  17. ORNL Researchers Study Market Entry Challenges for Building Envelope...

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

    This LLNL-led effort holds promise for the development of an innovative, cost-effective, "green" bio-adsorption technology to sequester and recover rare-earth elements from ...

  18. Research and Development Roadmap: Windows and Building Envelope...

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

    This roadmap is a useful resource for public and private decision makers evaluating and pursuing high-impact R&D focused on advancing next-generation energy efficient windows and ...

  19. Windows and Building Envelope Sub-Program Logic Model

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

    External Influences: DOE budget, Spin-off products, Energy prices, Private sector R&D, Market incentives, Legislation Regulation Objectives Activities Partners Outputs Short ...

  20. Soiling of building envelope surfaces and its effect on solar...

    Office of Scientific and Technical Information (OSTI)

    air conditioning, help mitigate the urban heat island effect, and slow global warming. ... Weathering of materials occurs with exposure to water, sunlight, and high temperatures. ...

  1. NREL Evaluates Thermal Performance of Uninsulated Walls to Improve Accuracy of Building Energy Simulation Tools (Fact Sheet), NREL Highlights, Research & Development, NREL (National Renewable Energy Laboratory)

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

    researchers discover ways to increase accuracy in building energy simulations tools to improve predictions of potential energy savings in homes. Uninsulated walls are typical in older U.S. homes where the wall cavities were not insulated during construction or where the insulating material has settled. Researchers at the National Renewable Energy Laboratory (NREL) are investigating ways to more accurately calculate heat transfer through building enclosures to verify the benefit of energy

  2. Building Technologies Program Multi-Year Program Plan Research and Development 2008

    SciTech Connect (OSTI)

    None, None

    2008-01-01

    Building Technologies Program Multi-Year Program Plan 2008 for research and development, including residential and commercial integration, lighting, HVAC and water heating, envelope, windows, and analysis tools.

  3. Building America Case Study: High Performance Ducts in Hot-Dry...

    Office of Scientific and Technical Information (OSTI)

    the conditioned thermal envelope. To support this activity, in 2013 the Pacific Gas & Electric Company initiated a project with Davis Energy Group (lead for the Building...

  4. Windows and Envelope Subprogram Overview - 2016 BTO Peer Review...

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

    Windows and Envelope Subprogram Overview - 2016 BTO Peer Review Windows and Envelope Subprogram Overview - 2016 BTO Peer Review Presenter: Karma Sawyer, U.S. Department of Energy ...

  5. Window and Envelope Technologies Overview - 2014 BTO Peer Review...

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

    and Envelope Technologies Overview - 2014 BTO Peer Review Window and Envelope Technologies Overview - 2014 BTO Peer Review Presenter: Karma Sawyer, U.S. Department of Energy This ...

  6. MHTGR thermal performance envelopes: Reliability by design

    SciTech Connect (OSTI)

    Etzel, K.T.; Howard, W.W.; Zgliczynski, J.B.

    1992-05-01

    This document discusses thermal performance envelopes which are used to specify steady-state design requirements for the systems of the Modular High Temperature Gas-Cooled Reactor to maximize plant performance reliability with optimized design. The thermal performance envelopes are constructed around the expected operating point accounting for uncertainties in actual plant as-built parameters and plant operation. The components are then designed to perform successfully at all points within the envelope. As a result, plant reliability is maximized by accounting for component thermal performance variation in the design. The design is optimized by providing a means to determine required margins in a disciplined and visible fashion.

  7. Magellan @ NERSC Pushes Energy Efficiency Envelope

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

    @ NERSC Pushes Energy Efficiency Envelope Magellan @ NERSC Pushes Energy Efficiency Envelope February 23, 2011 At NERSC, the Magellan scientific cloud computing testbed is pushing the bounds of power and cooling efficiency. The system was not only installed to require less cooling energy, but it's also been configured to simulate a wide range of data center parameters and instrumented with sensors, allowing staff to study and tune Magellan's efficiency. Innovative Installation NERSC staff

  8. Advanced Envelope Research for Factory Built Housing, Phase 3 -- Whole-House Prototyping

    SciTech Connect (OSTI)

    Levy, E.; Mullens, M.; Rath, P.

    2014-04-01

    The Advanced Envelope Research effort will provide factory homebuilders with high performance, cost-effective envelope designs that can be effectively integrated into the plant production process while meeting the thermal requirements of the 2012 IECC standards. Given the affordable nature of manufactured homes, impact on first cost is a major consideration in developing new envelope technologies. This work is part of a multi-phase effort. Phase 1 identified seven envelope technologies and provided a preliminary assessment of three methods for building high performance walls. Phase 2 focused on developing viable product designs, manufacturing strategies, addressing code and structural issues, and cost analysis of the three selected options. An industry advisory committee helped narrow the research focus to perfecting a stud wall design with exterior continuous insulation (CI). Phase 3, completed in two stages, continued the design development effort, exploring and evaluating a range or methods for applying CI to factory built homes. The scope also included material selection, manufacturing and cost analysis, and prototyping and testing. During this phase, a home was built with CI, evaluated, and placed in service. The experience of building a mock up wall section with CI and then constructing on line a prototype home resolved important concerns about how to integrate the material into the production process. First steps were taken toward finding least expensive approaches for incorporating CI in standard factory building practices and a preliminary assessment suggested that even at this early stage the technology is attractive when viewed from a life cycle cost perspective.

  9. Energy Department Announces $9 Million to Improve Energy Efficiency of Hotels, Hospitals, Offices and other Commercial Buildings

    Broader source: Energy.gov [DOE]

    As part of the Obama Administration’s effort to double energy productivity by 2030 and reduce carbon emissions in commercial buildings, the Energy Department today announced $9 million to encourage investments in energy-saving technologies that can be tested and deployed in offices, shops, restaurants, hospitals, hotels and other types of commercial buildings.

  10. Building America Update - May 14, 2015 | Department of Energy

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

    14, 2015 Building America Update - May 14, 2015 May 13, 2015 - 4:35pm Addthis Building America Research Teams: Spotlight on ARIES and NorthernSTAR Teams Race to Zero Student Design Competition: Inspiring the Next Generation of Building Scientists DOE Invests $4 Million to Strengthen Building America Industry Partnerships Building America May 20 Webinar: Resolving Codes and Standards Issues to Energy Innovations Buildings XIII Conference-Thermal Performance of the Exterior Envelopes: Call for

  11. Building America Update: November 2015 | Department of Energy

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

    Update: November 2015 Building America Update: November 2015 July 28, 2016 - 2:43pm Addthis Welcome to the Building America Update, a monthly newsletter. Read this month's feature story, or select the other newsletter topics below for more information. You can also Subscribe to receive the email version of Building America Update or browse newsletter archives. Feature story New Building America Projects Focus on Building Envelope, Ventilation, and More Events November Building America Webinar:

  12. BUILDING STRONG

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

    BUILDER NNSA Achieves Major Milestone in BUILDER Implementation WASHINGTON, D.C. - The Department of Energy's National Nuclear Security Administration (DOE/NNSA) achieved a major milestone in improving the management of the Nuclear Security Enterprise's infrastructure through the successful migration of all current information on building

    BUILDING STRONG ® Communications * Division and District Command level strategic involvement * Increased communication * Refined business processes *

  13. Advanced Envelope Research for Factory Built Housing, Phase 3Design Development and Prototyping

    SciTech Connect (OSTI)

    Levy, E.; Kessler, B.; Mullens, M.; Rath, P.

    2014-01-01

    The Advanced Envelope Research effort will provide factory homebuilders with high performance, cost-effective alternative envelope designs. In the near term, these technologies will play a central role in meeting stringent energy code requirements. For manufactured homes, the thermal requirements, last updated by statute in 1994, will move up to the more rigorous IECC 2012 levels in 2013, the requirements of which are consistent with site built and modular housing. This places added urgency on identifying envelope technologies that the industry can implement in the short timeframe. The primary goal of this research is to develop wall designs that meet the thermal requirements based on 2012 IECC standards. Given the affordable nature of manufactured homes, impact on first cost is a major consideration in developing the new envelope technologies. This work is part of a four-phase, multi-year effort. Phase 1 identified seven envelope technologies and provided a preliminary assessment of three selected methods for building high performance wall systems. Phase 2 focused on the development of viable product designs, manufacturing strategies, addressing code and structural issues, and cost analysis of the three selected options. An industry advisory committee helped critique and select the most viable solution to move further in the research stud walls with continuous exterior insulation. Phase 3, the subject of the current report, focused on the design development of the selected wall concept and explored variations on the use of exterior foam insulation. The scope also included material selection, manufacturing and cost analysis, and prototyping and testing.

  14. Advanced Envelope Research for Factory Built Housing, Phase 3 -- Design Development and Prototyping

    SciTech Connect (OSTI)

    Levy, E.; Kessler, B.; Mullens, M.; Rath, P.

    2014-01-01

    The Advanced Envelope Research effort will provide factory homebuilders with high performance, cost-effective alternative envelope designs. In the near term, these technologies will play a central role in meeting stringent energy code requirements. For manufactured homes, the thermal requirements, last updated by statute in 1994, will move up to the more rigorous IECC 2012 levels in 2013, the requirements of which are consistent with site built and modular housing. This places added urgency on identifying envelope technologies that the industry can implement in the short timeframe. The primary goal of this research is to develop wall designs that meet the thermal requirements based on 2012 IECC standards. Given the affordable nature of manufactured homes, impact on first cost is a major consideration in developing the new envelope technologies. This work is part of a four-phase, multi-year effort. Phase 1 identified seven envelope technologies and provided a preliminary assessment of three selected methods for building high performance wall systems. Phase 2 focused on the development of viable product designs, manufacturing strategies, addressing code and structural issues, and cost analysis of the three selected options. An industry advisory committee helped critique and select the most viable solution to move further in the research -- stud walls with continuous exterior insulation. Phase 3, the subject of the current report, focused on the design development of the selected wall concept and explored variations on the use of exterior foam insulation. The scope also included material selection, manufacturing and cost analysis, and prototyping and testing.

  15. Building America Case Study: Boiler Control Replacement for Hydronically Heated Multifamily Buildings, Cambridge, Massachusetts (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-11-01

    The ARIES Collaborative, a U.S. Department of Energy Building America research team, partnered with NeighborWorks America affiliate Homeowners' Rehab Inc. (HRI) of Cambridge, Massachusetts, to study improvements to the central hydronic heating system in one of the nonprofit's housing developments. The heating controls in the three-building, 42-unit Columbia Cambridge Alliance for Spanish Tenants housing development were upgraded. Fuel use in the development was excessive compared to similar properties. A poorly insulated thermal envelope contributed to high energy bills, but adding wall insulation was not cost-effective or practical. The more cost-effective option was improving heating system efficiency. Efficient operation of the heating system faced several obstacles, including inflexible boiler controls and failed thermostatic radiator valves. Boiler controls were replaced with systems that offer temperature setbacks and one that controls heat based on apartment temperature in addition to outdoor temperature. Utility bill analysis shows that post-retrofit weather-normalized heating energy use was reduced by 10%-31% (average of 19%). Indoor temperature cutoff reduced boiler runtime (and therefore heating fuel consumption) by 28% in the one building in which it was implemented. Nearly all savings were obtained during night which had a lower indoor temperature cut off (68 degrees F) than day (73 degrees F). This implies that the outdoor reset curve was appropriately adjusted for this building for daytime operation. Nighttime setback of heating system supply water temperature had no discernable impact on boiler runtime or gas bills.

  16. New Insights for Improving the Designs of Flexible Duct Junction Boxes (Fact Sheet), Building America Case Study: Technology Solutions for New and Existing Homes, Building Technologies Office (BTO)

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

    New Insights for Improving the Designs of Flexible Duct Junction Boxes PROJECT INFORMATION IBACOS www.ibacos.com Construction: Fiberglass duct board or sheet metal junction boxes Type: Flexible duct constant-volume HVAC systems Builders: Those using ACCA Manual D process for sizing duct runs Size: N/A Price Range: N/A Date completed: N/A Climate Zone: All PERFORMANCE DATA Pressure losses are high for flexible duct junction boxes relative to other standard duct fittings; however, contractors

  17. Residential Buildings Integration | Department of Energy

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

    the Latest in Energy Efficient Building Technology. Learn More The Building Technologies Office (BTO) collaborates with the residential building industry to improve the...

  18. NREL Improves Access to Building Product Energy Data (Fact Sheet), NREL Highlights in Research & Development, NREL (National Renewable Energy Laboratory)

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

    Technology Performance Exchange helps move projects to implementation. A new Web-based tool enables users to evaluate the site-specific performance of various building technolo- gies, support more effective financial analyses, and make better-informed procure- ment decisions. By improving stakeholders' confidence in performance, the Technol- ogy Performance Exchange(tm) (TPEx(tm)) is streamlining access to foundational energy performance data and helping many viable energy efficiency projects

  19. Building Efficiency Report

    Office of Energy Efficiency and Renewable Energy (EERE)

    Buildings use 40% of total energy in the United States – more than either the industrial or transportation sectors. Technical improvements and cost reductions (see Appendix 3) in building materials...

  20. A Common Definition for Zero Energy Buildings | Department of Energy

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

    A Common Definition for Zero Energy Buildings A Common Definition for Zero Energy Buildings Thousands of project teams throughout the country seek to push the envelope and develop zero energy buildings. Generally speaking, a zero energy building produces enough renewable energy to meet its own annual energy consumption requirements, thereby reducing the use of non-renewable energy in the building sector. This definition also applies to campuses, portfolios, and communities. In addition to

  1. Tank waste remediation system (TWRS) privatization contractor samples waste envelope D material 241-C-106

    SciTech Connect (OSTI)

    Esch, R.A.

    1997-04-14

    This report represents the Final Analytical Report on Tank Waste Remediation System (TWRS) Privatization Contractor Samples for Waste Envelope D. All work was conducted in accordance with ''Addendum 1 of the Letter of Instruction (LOI) for TWRS Privatization Contractor Samples Addressing Waste Envelope D Materials - Revision 0, Revision 1, and Revision 2.'' (Jones 1996, Wiemers 1996a, Wiemers 1996b) Tank 241-C-1 06 (C-106) was selected by TWRS Privatization for the Part 1A Envelope D high-level waste demonstration. Twenty bottles of Tank C-106 material were collected by Westinghouse Hanford Company using a grab sampling technique and transferred to the 325 building for processing by the Pacific Northwest National Laboratory (PNNL). At the 325 building, the contents of the twenty bottles were combined into a single Initial Composite Material. This composite was subsampled for the laboratory-scale screening test and characterization testing, and the remainder was transferred to the 324 building for bench-scale preparation of the Privatization Contractor samples.

  2. Advanced Envelope Research for Factory Built Housing, Phase 3. Whole-House Prototyping

    SciTech Connect (OSTI)

    Levy, E.; Mullens, M.; Rath, P.

    2014-04-01

    The Advanced Envelope Research effort will provide factory homebuilders with high performance, cost-effective envelope designs that can be effectively integrated into the plant production process while meeting the thermal requirements of the 2012 IECC standards. This work is part of a multiphase effort. Phase 1 identified seven envelope technologies and provided a preliminary assessment of three methods for building high performance walls. Phase 2 focused on developing viable product designs, manufacturing strategies, addressing code and structural issues, and cost analysis of the three selected options. An industry advisory committee helped narrow the research focus to perfecting a stud wall design with exterior continuous insulation (CI). This report describes Phase 3, which was completed in two stages and continued the design development effort, exploring and evaluating a range or methods for applying CI to factory built homes. The scope also included material selection, manufacturing and cost analysis, and prototyping and testing. During this phase, a home was built with CI, evaluated, and placed in service. The experience of building a mock up wall section with CI and then constructing on line a prototype home resolved important concerns about how to integrate the material into the production process. First steps were taken toward finding least expensive approaches for incorporating CI in standard factory building practices and a preliminary assessment suggested that even at this early stage the technology is attractive when viewed from a life cycle cost perspective.

  3. Definition and means of maintaining the emergency notification and evacuation system portion of the Plutonium Finishing Plant safety envelope

    SciTech Connect (OSTI)

    White, W.F.

    1997-04-21

    The Emergency Evacuation and Notification System provides information to the PFP Building Emergency Director to assist in determining appropriate emergency response, notifies personnel of the required response, and assists in their response. The report identifies the equipment in the Safety Envelope (SE) for this System and the Administrative, Maintenance, and Surveillance Procedures used to maintain the SE Equipment.

  4. 200 Area Deactivation Project Facilities Authorization Envelope Document

    SciTech Connect (OSTI)

    DODD, E.N.

    2000-03-28

    Project facilities as required by HNF-PRO-2701, Authorization Envelope and Authorization Agreement. The Authorization Agreements (AA's) do not identify the specific set of environmental safety and health requirements that are applicable to the facility. Therefore, the facility Authorization Envelopes are defined here to identify the applicable requirements. This document identifies the authorization envelopes for the 200 Area Deactivation.

  5. Buildings | Buildings | NREL

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

    Energy Index for Commercial Buildings Welcome to the Energy Index for Commercial Buildings. Data for this tool comes from the Energy Information Administration's (EIA) 2003 Commercial Buildings Energy Consumption Survey (CBECS). Select categories from the CBECS micro data allow users to search on common building characteristics that impact energy use. Users may select multiple criteria, however if the resulting sample size is too small, the data will be unreliable. If nothing is selected results

  6. Windows and Envelope Sub-Program Overview

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

    Windows and Envelope Sub-Program Overview Karma Sawyer, Ph.D. - Technology Manager karma.sawyer@ee.doe.gov Presented by Patrick Phelan 2 BTO's Integrated Approach Research & Development * Develop technology roadmaps * Prioritize opportunities * Solicit and select innovative technology solutions * Collaborate with researchers * Solve technical barriers and test innovations to prove effectiveness * Measure and validate energy savings Codes and Standards * Establish minimum energy use in a

  7. Country Report on Building Energy Codes in Japan

    SciTech Connect (OSTI)

    Evans, Meredydd; Shui, Bin; Takagi, T.

    2009-04-15

    This report is part of a series of reports on building energy efficiency codes in countries associated with the Asian Pacific Partnership (APP) - Australia, South Korea, Japan, China, India, and the United States of America (U.S.). This reports gives an overview of the development of building energy codes in Japan, including national energy policies related to building energy codes, history of building energy codes, recent national projects and activities to promote building energy codes. The report also provides a review of current building energy codes (such as building envelope, HVAC, and lighting) for commercial and residential buildings in Japan.

  8. Country Report on Building Energy Codes in Korea

    SciTech Connect (OSTI)

    Evans, Meredydd; McJeon, Haewon C.; Shui, Bin; Lee, Seung Eon

    2009-04-17

    This report is part of a series of reports on building energy efficiency codes in countries associated with the Asian Pacific Partnership (APP) - Australia, South Korea, Japan, China, India, and the United States of America (U.S.). This reports gives an overview of the development of building energy codes in Korea, including national energy policies related to building energy codes, history of building energy codes, recent national projects and activities to promote building energy codes. The report also provides a review of current building energy codes (such as building envelope, HVAC, and lighting) for commercial buildings in Korea.

  9. Country Report on Building Energy Codes in China

    SciTech Connect (OSTI)

    Shui, Bin; Evans, Meredydd; Lin, H.; Jiang, Wei; Liu, Bing; Song, Bo; Somasundaram, Sriram

    2009-04-15

    This report is part of a series of reports on building energy efficiency codes in countries associated with the Asian Pacific Partnership (APP) - Australia, South Korea, Japan, China, India, and the United States of America (U.S.). This reports gives an overview of the development of building energy codes in China, including national energy policies related to building energy codes, history of building energy codes, recent national projects and activities to promote building energy codes. The report also provides a review of current building energy codes (such as building envelope and HVAC) for commercial and residential buildings in China.

  10. Country Report on Building Energy Codes in Canada

    SciTech Connect (OSTI)

    Shui, Bin; Evans, Meredydd

    2009-04-06

    This report is part of a series of reports on building energy efficiency codes in countries associated with the Asian Pacific Partnership (APP) - Australia, South Korea, Japan, China, India, and the United States of America . This reports gives an overview of the development of building energy codes in Canada, including national energy policies related to building energy codes, history of building energy codes, recent national projects and activities to promote building energy codes. The report also provides a review of current building energy codes (such as building envelope, HVAC, lighting, and water heating) for commercial and residential buildings in Canada.

  11. Country Report on Building Energy Codes in the United States

    SciTech Connect (OSTI)

    Halverson, Mark A.; Shui, Bin; Evans, Meredydd

    2009-04-30

    This report is part of a series of reports on building energy efficiency codes in countries associated with the Asian Pacific Partnership (APP) - Australia, South Korea, Japan, China, India, and the United States of America (U.S.). This reports gives an overview of the development of building energy codes in U.S., including national energy policies related to building energy codes, history of building energy codes, recent national projects and activities to promote building energy codes. The report also provides a review of current building energy codes (such as building envelope, HVAC, lighting, and water heating) for commercial and residential buildings in the U.S.

  12. Country Report on Building Energy Codes in Australia

    SciTech Connect (OSTI)

    Shui, Bin; Evans, Meredydd; Somasundaram, Sriram

    2009-04-02

    This report is part of a series of reports on building energy efficiency codes in countries associated with the Asian Pacific Partnership (APP) - Australia, South Korea, Japan, China, India, and the United States of America (U.S.). This reports gives an overview of the development of building energy codes in Australia, including national energy policies related to building energy codes, history of building energy codes, recent national projects and activities to promote building energy codes. The report also provides a review of current building energy codes (such as building envelope, HVAC, and lighting) for commercial and residential buildings in Australia.

  13. Buildings Energy Data Book

    Buildings Energy Data Book [EERE]

    3.1 Commercial Sector Energy Consumption 3.2 Commercial Sector Characteristics 3.3 Commercial Sector Expenditures 3.4 Commercial Environmental Emissions 3.5 Commercial Builders and Construction 3.6 Office Building Markets and Companies 3.7 Retail Markets and Companies 3.8 Hospitals and Medical Facilities 3.9 Educational Facilities 3.10 Hotels/Motels 4Federal Sector 5Envelope and Equipment 6Energy Supply 7Laws, Energy Codes, and Standards 8Water 9Market Transformation Glossary Acronyms and

  14. Energy Efficient Buildings Hub

    Broader source: Energy.gov [DOE]

    Science and industry work together to improve energy efficiency and reduce carbon emissions of both new and existing buildings while also stimulating private investment and quality job creation.

  15. Russias R&D for Low Energy Buildings: Insights for Cooperation with Russia

    SciTech Connect (OSTI)

    Schaaf, Rebecca E.; Evans, Meredydd

    2010-05-01

    Russian buildings, Russian buildings sector energy consumption. Russian government has made R&D investment a priority again. The government and private sector both invest in a range of building energy technologies. In particular, heating, ventilation and air conditioning, district heating, building envelope, and lighting have active technology research projects and programs in Russia.

  16. BUILDING STRONG

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

    Interior Least Tern Operations and Habitat Creation Arkansas River Corridor Lake Eufaula Advisory Committee Tenkiller Downstream Fishery Issues DO / Minimum Flows Broken Bow Seasonal Pool Update Cultural Resources Impacts Arkansas River Navigation Improvement BUILDING STRONG ® Interior Least Tern Operations and Habitat Creation A new biological opinion is underway and expected to be available in the coming weeks. We expect no change in the Least Tern program resulting from the opinion. The

  17. Technical support document for proposed 1994 revision of the MEC thermal envelope requirements

    SciTech Connect (OSTI)

    Conner, C.C.; Lucas, R.G.

    1994-03-01

    This report documents the development of the proposed revision of the Council of American Building Officials` (CABO) 1994 supplement to the 1993 Model Energy Code (MEC) building thermal envelope requirements for maximum component U{sub 0}-value. The 1994 amendments to the 1993 MEC were established in last year`s code change cycle and did not change the envelope requirements. The research underlying the proposed MEC revision was conducted by Pacific Northwest Laboratory (PNL) for the US Department of Energy (DOE) Building Energy Standards program. The goal of this research was to develop revised guidelines based on an objective methodology that determines the most cost-effective (least total cost) combination of energy conservation measures (ECMs) (insulation levels and window types) for residential buildings. This least-cost set of ECMs was used as a basis for proposing revised MEC maximum U{sub 0}-values (thermal transmittances). ECMs include window types (for example, double-pane vinyl) and insulation levels (for example, R-19) for ceilings, walls, and floors.

  18. Low heat-leak cryogenic envelope

    DOE Patents [OSTI]

    DeHaan, James R.

    1976-10-19

    A plurality of cryogenic envelope sections are joined together to form a power transmission line. Each of the sections is comprised of inner and outer tubes having multilayer metalized plastic spirally wrapped within a vacuum chamber formed between the inner and outer tubes. A refrigeration tube traverses the vacuum chamber, but exits one section and enters another through thermal standoffs for reducing heat-leak from the outer tube to the refrigeration tube. The refrigeration tube passes through a spirally wrapped shield within each section's vacuum chamber in a manner so that the refrigeration tube is in close thermal contact with the shield, but is nevertheless slideable with respect thereto.

  19. High Performance Sustainable Buildings

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

    Buildings Goal 3: High Performance Sustainable Buildings Maintaining the conditions of a building improves the health of not only the surrounding ecosystems, but also the well-being of its occupants. Energy Conservation» Efficient Water Use & Management» High Performance Sustainable Buildings» Greening Transportation» Green Purchasing & Green Technology» Pollution Prevention» Science Serving Sustainability» ENVIRONMENTAL SUSTAINABILITY GOALS at LANL The Radiological Laboratory

  20. Better Buildings, Better Plants:

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

    Buildings, Better Plants: AMO Technical Assistance Overview Andre de Fontaine This presentation does not contain any proprietary, confidential, or otherwise restricted information. 2 | Advanced Manufacturing Office Better Buildings, Better Plants Overview  Better Buildings, Better Plants is a national, voluntary industrial energy efficiency leadership initiative.  It is a key component of the President's Better Buildings Initiative, which seeks to improve the energy efficiency of

  1. Predicting Envelope Leakage in Attached Dwellings

    Broader source: Energy.gov [DOE]

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

  2. Small Building Material Loan

    Broader source: Energy.gov [DOE]

    Applicants may borrow up to $100,000 for projects that improve the livability of a home, improve energy efficiency, or expand space. The loan can be applied toward building materials, freight or...

  3. Advanced Interactive Facades - Critical Elements for Future GreenBuildings?

    SciTech Connect (OSTI)

    Selkowitz, Stephen; Aschehoug, Oyvind; Lee, Eleanor S.

    2003-11-01

    Building designers and owners have always been fascinated with the extensive use of glass in building envelopes. Today the highly glazed facade has almost become an iconic element for a 'green building' that provides daylighting and a visual connection with the natural environment. Even before the current interest in green buildings there was no shortage of highly glazed building designs. But many of these buildings either rejected sunlight, and some associated daylight and view with highly reflective glazings or used highly transmissive glass and encountered serious internal comfort problems that could only be overcome with large HVAC systems, resulting in significant energy, cost and environmental penalties. From the 1960's to the 1990's innovation in glazing made heat absorbing glass, reflective glass and double glazing commonplace, with an associated set of aesthetic features. In the last decade there has been a subtle shift from trying to optimize an ideal, static design solution using these glazings to making the facade responsive, interactive and even intelligent. More sophisticated design approaches and technologies have emerged using new high-performance glazing, improved shading and solar control systems, greater use of automated controls, and integration with other building systems. One relatively new architectural development is the double glass facade that offers a cavity that can provide improved acoustics, better solar control and enhanced ventilation. Taken to its ultimate development, an interactive facade should respond intelligently and reliably to the changing outdoor conditions and internal performance needs. It should exploit available natural energies for lighting, heating and ventilation, should be able to provide large energy savings compared to conventional technologies, and at the same time maintain optimal indoor visual and thermal comfort conditions. As photovoltaic costs decrease in the future, these onsite power systems will be

  4. Precision envelope detector and linear rectifier circuitry

    DOE Patents [OSTI]

    Davis, Thomas J.

    1980-01-01

    Disclosed is a method and apparatus for the precise linear rectification and envelope detection of oscillatory signals. The signal is applied to a voltage-to-current converter which supplies current to a constant current sink. The connection between the converter and the sink is also applied through a diode and an output load resistor to a ground connection. The connection is also connected to ground through a second diode of opposite polarity from the diode in series with the load resistor. Very small amplitude voltage signals applied to the converter will cause a small change in the output current of the converter, and the difference between the output current and the constant current sink will be applied either directly to ground through the single diode, or across the output load resistor, dependent upon the polarity. Disclosed also is a full-wave rectifier utilizing constant current sinks and voltage-to-current converters. Additionally, disclosed is a combination of the voltage-to-current converters with differential integrated circuit preamplifiers to boost the initial signal amplitude, and with low pass filtering applied so as to obtain a video or signal envelope output.

  5. TRANSPARENT HELIUM IN STRIPPED ENVELOPE SUPERNOVAE

    SciTech Connect (OSTI)

    Piro, Anthony L.; Morozova, Viktoriya S., E-mail: piro@caltech.edu [Theoretical Astrophysics, California Institute of Technology, 1200 E. California Blvd., M/C 350-17, Pasadena, CA 91125 (United States)

    2014-09-01

    Using simple arguments based on photometric light curves and velocity evolution, we propose that some stripped envelope supernovae (SNe) show signs that a significant fraction of their helium is effectively transparent. The main pieces of evidence are the relatively low velocities with little velocity evolution, as are expected deep inside an exploding star, along with temperatures that are too low to ionize helium. This means that the helium should not contribute to the shaping of the main SN light curve, and thus the total helium mass may be difficult to measure from simple light curve modeling. Conversely, such modeling may be more useful for constraining the mass of the carbon/oxygen core of the SN progenitor. Other stripped envelope SNe show higher velocities and larger velocity gradients, which require an additional opacity source (perhaps the mixing of heavier elements or radioactive nickel) to prevent the helium from being transparent. We discuss ways in which similar analysis can provide insights into the differences and similarities between SNe Ib and Ic, which will lead to a better understanding of their respective formation mechanisms.

  6. Building performance analysis using interactive multimedia concepts

    SciTech Connect (OSTI)

    Selkowitz, S.; Beltran, L.; Osterhaus, W.; Papamichael, K.; Schuman, J.; Sullivan, R.; Wilde, M.

    1992-04-01

    We describe LBL`s involvement with multimedia concepts by discussing several modules of an advanced computer-based building envelope design tool. The qualitative and quantitative aspects of the building design process are accommodated within the same design tool which uses object-oriented programming procedures. This computer-based concept utilizes images (buildings, landscapes, models, documents, etc.), expert systems (knowledge bases, i.e., lighting design, site planning, HVAC design, etc.), and data bases (design criteria, utility rates, climatic data, etc.) in addition to more traditional simulation models to evaluate building design alternatives.

  7. Building performance analysis using interactive multimedia concepts

    SciTech Connect (OSTI)

    Selkowitz, S.; Beltran, L.; Osterhaus, W.; Papamichael, K.; Schuman, J.; Sullivan, R.; Wilde, M.

    1992-04-01

    We describe LBL's involvement with multimedia concepts by discussing several modules of an advanced computer-based building envelope design tool. The qualitative and quantitative aspects of the building design process are accommodated within the same design tool which uses object-oriented programming procedures. This computer-based concept utilizes images (buildings, landscapes, models, documents, etc.), expert systems (knowledge bases, i.e., lighting design, site planning, HVAC design, etc.), and data bases (design criteria, utility rates, climatic data, etc.) in addition to more traditional simulation models to evaluate building design alternatives.

  8. Window and Envelope Technologies Overview - 2014 BTO Peer Review...

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

    Peer Review Window and Envelope Technologies Overview - 2014 BTO Peer Review Presenter: Karma Sawyer, U.S. Department of Energy This presentation at the 2014 Peer Review provided...

  9. Recombination enhances HIV-1 envelope diversity by facilitating...

    Office of Scientific and Technical Information (OSTI)

    plasma virus population Prev Next Title: Recombination enhances HIV-1 envelope diversity by facilitating the survival of latent genomic fragments in the plasma virus ...

  10. Industrial Buildings

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

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

  11. Evaluation and capacity building to improve precollege science and mathematics achievement in the US: 10 CFR, Part 605

    SciTech Connect (OSTI)

    Not Available

    1992-01-01

    The National Center for Improving Science Education has undertaken activities to achieve evaluation goals for DOE's Precollege programs: develop means to determine program quality; develop means for determining the contribution of DOE precollege programs to both teacher enhancement and student achievement; provide evaluation designs and instruments and reports of program quality and impact; and strengthen both DOE's and the Labs' capacity to do both short- and long-term planning as well as deliver effective programs and evaluation. Appendices include evaluation/technical assistance report, profiling teacher research participation and teacher development programs, teacher surveys, impact assessment design, and teacher research participation programs anecdotes for 8 labs.

  12. Buildings*","Buildings

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

    Gas","Fuel Oil","District Heat","Propane","Other a" "All Buildings* ... Water ......",33,32,6,8,"Q",24,"Q","N" "Propane ......",502,489,179,40,59...

  13. Rational engineering of Geobacter sulfurreducens electron transfer components: A foundation for building improved Geobacter-based bioelectrochemical technologies

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

    Dantas, Joana M.; Morgado, Leonor; Aklujkar, Muktak; Bruix, Marta; Londer, Yuri Y.; Schiffer, Marianne; Pokkuluri, P. Raj; Salgueiro, Carlos A.

    2015-07-30

    Multiheme cytochromes have been implicated in Geobacter sulfurreducens extracellular electron transfer (EET). These proteins are potential targets to improve EET and enhance bioremediation and electrical current production by G. sulfurreducens. However, the functional characterization of multiheme cytochromes is particularly complex due to the co-existence of several microstates in solution, connecting the fully reduced and fully oxidized states. Throughout the last decade, new strategies have been developed to characterize multiheme redox proteins functionally and structurally. These strategies were used to reveal the functional mechanism of G. sulfurreducens multiheme cytochromes and also to identify key residues in these proteins for EET. Inmore » previous studies, we set the foundations for enhancement of the EET abilities of G. sulfurreducens by characterizing a family of five triheme cytochromes (PpcA-E). These periplasmic cytochromes are implicated in electron transfer between the oxidative reactions of metabolism in the cytoplasm and the reduction of extracellular terminal electron acceptors at the cell's outer surface. The results obtained suggested that PpcA can couple e-/H+ transfer, a property that might contribute to the proton electrochemical gradient across the cytoplasmic membrane for metabolic energy production. The structural and functional properties of PpcA were characterized in detail and used for rational design of a family of 23 single site PpcA mutants. In this review, we summarize the functional characterization of the native and mutant proteins. Mutants that retain the mechanistic features of PpcA and adopt preferential e-/H+ transfer pathways at lower reduction potential values compared to the wild-type protein were selected for in vivo studies as the best candidates to increase the electron transfer rate of G. sulfurreducens. For the first time G. sulfurreducens strains have been manipulated by the introduction of mutant forms of

  14. Analyzing Design Heating Loads in Superinsulated Buildings

    SciTech Connect (OSTI)

    Arena, Lois

    2015-06-01

    Super-insulated homes offer many benefits including improved comfort, reduced exterior noise penetration, lower energy bills, and the ability to withstand power and fuel outages under much more comfortable conditions than a typical home. While these homes aren't necessarily constructed with excessive mass in the form of concrete floors and walls, the amount of insulation and the increase in the thickness of the building envelope can lead to a mass effect, resulting in the structures ability to store much more heat than a code built home. This results in a very low thermal inertia making the building much less sensitive to drastic temperature swings thereby decreasing the peak heating load demand. During the winter of 2013/2014, CARB monitored the energy use of three homes in climate zone 6 in an attempt to evaluate the accuracy of two different mechanical system sizing methods for low load homes. Based on the results, it is recommended that internal and solar gains be included and some credit for thermal inertia be used in sizing calculations for super insulated homes.

  15. Nano-based PCMs for building energy efficiency

    SciTech Connect (OSTI)

    Biswas, Kaushik

    2016-01-01

    Thermal storage using phase change materials (PCMs) is seen as a viable method for improving the energy efficiency of buildings. PCMs have been used in building applications in various forms PCM slurries in heat exchangers, macro- or microencapsulated PCMs in building envelopes, bulk PCM for modulating photovoltaic temperatures, etc. In the last decade a new class of PCMs, called nano-enhanced PCM (or nanoPCM), has been extensively investigated with the goal of improving the heat transfer and thermal storage properties of PCMs. NanoPCMs can primarily be categorized as nano-encapsulated PCMs and nanoparticle-PCM composites. The former are nano-sized capsules in which the PCM forms the core and is surrounded by a high-conductivity membrane or shell. The latter consist of PCM supported within nanostructures or nanoparticles dispersed in PCMs. This article reviews the current state of nanoPCM synthesis and characterization of their heat transfer and thermal storage properties. Further, a critical review of nanoPCM applications and their potential energy benefits is performed. Nano-enhanced PCMs exhibit higher thermal conductivities than regular PCM. However, whether the higher conductivity is desirable in all applications and if the property enhancements are worth the cost and effort needed to create nanoPCMs are questions that still need to be answered.

  16. Building America Case Study: Retrofitting a 1960s Split-Level...

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

    ... ENVELOPE * R-13 dense-packed cellulose insulation in 2 4 frame walls * 7 in. of ccSPF ... tank Approach to Retrofitting Existing Building Enclosures In existing homes, ...

  17. Building Technologies Office | Department of Energy

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

    will develop innovative techniques for improving home construction and retrofit processes. ... While commercial building owners generally have control over building systems and ...

  18. Building America Webinar: High Performance Building Enclosures: Part I,

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

    Existing Homes | Department of Energy High Performance Building Enclosures: Part I, Existing Homes Building America Webinar: High Performance Building Enclosures: Part I, Existing Homes The webinar, presented on May 21, 2014, focused on specific Building America projects that have implemented technical solutions to retrofit building enclosures to reduce energy use and improve durability. Presenters answered tough questions such as: How can builders deal with increasing exterior foundation

  19. House Simulation Protocols (Building America Benchmark) - Building...

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

    House Simulation Protocols (Building America Benchmark) - Building America Top Innovation House Simulation Protocols (Building America Benchmark) - Building America Top Innovation ...

  20. Mercantile Buildings

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

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

  1. Education Buildings

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

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

  2. Better Buildings

    Broader source: Energy.gov [DOE]

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

  3. Critical point analysis of phase envelope diagram

    SciTech Connect (OSTI)

    Soetikno, Darmadi; Siagian, Ucok W. R.; Kusdiantara, Rudy Puspita, Dila Sidarto, Kuntjoro A. Soewono, Edy; Gunawan, Agus Y.

    2014-03-24

    Phase diagram or phase envelope is a relation between temperature and pressure that shows the condition of equilibria between the different phases of chemical compounds, mixture of compounds, and solutions. Phase diagram is an important issue in chemical thermodynamics and hydrocarbon reservoir. It is very useful for process simulation, hydrocarbon reactor design, and petroleum engineering studies. It is constructed from the bubble line, dew line, and critical point. Bubble line and dew line are composed of bubble points and dew points, respectively. Bubble point is the first point at which the gas is formed when a liquid is heated. Meanwhile, dew point is the first point where the liquid is formed when the gas is cooled. Critical point is the point where all of the properties of gases and liquids are equal, such as temperature, pressure, amount of substance, and others. Critical point is very useful in fuel processing and dissolution of certain chemicals. Here in this paper, we will show the critical point analytically. Then, it will be compared with numerical calculations of Peng-Robinson equation by using Newton-Raphson method. As case studies, several hydrocarbon mixtures are simulated using by Matlab.

  4. Economic Energy Savings Potential in Federal Buildings

    SciTech Connect (OSTI)

    Brown, Daryl R.; Dirks, James A.; Hunt, Diane M.

    2000-09-04

    The primary objective of this study was to estimate the current life-cycle cost-effective (i.e., economic) energy savings potential in Federal buildings and the corresponding capital investment required to achieve these savings, with Federal financing. Estimates were developed for major categories of energy efficiency measures such as building envelope, heating system, cooling system, and lighting. The analysis was based on conditions (building stock and characteristics, retrofit technologies, interest rates, energy prices, etc.) existing in the late 1990s. The potential impact of changes to any of these factors in the future was not considered.

  5. 200 Market Building

    High Performance Buildings Database

    Portland, Oregon The 200 Market Building is a high-rise built in 1973 and located in downtown Portland, Oregon. It was purchased in 1988 by its current owner, 200 Market Associates, primarily because of its optimal location in Portland's central business district. Since 1989 the building has undergone continuous improvements in multiple phases.

  6. Better Buildings Summit

    Broader source: Energy.gov [DOE]

    At the 2016 Better Buildings Summit, more than 100 sessions will be offered across sector-specific and cross-cutting tracks. For public sector attendees, we are featuring a range of sessions relevant to improving the energy efficiency of our nation's buildings, schools, and homes.

  7. Buildings Energy Data Book

    Buildings Energy Data Book [EERE]

    2.1 Residential Sector Energy Consumption 2.2 Residential Sector Characteristics 2.3 Residential Sector Expenditures 2.4 Residential Environmental Data 2.5 Residential Construction and Housing Market 2.6 Residential Home Improvements 2.7 Multi-Family Housing 2.8 Industrialized Housing 2.9 Low-Income Housing 3Commercial Sector 4Federal Sector 5Envelope and Equipment 6Energy Supply 7Laws, Energy Codes, and Standards 8Water 9Market Transformation Glossary Acronyms and Initialisms Technology

  8. Green Building Requirement

    Office of Energy Efficiency and Renewable Energy (EERE)

    The new standards are phased in over the course of several years with publicly-owned buildings being the first required to comply. All new construction and substantial improvements of non...

  9. Energy Efficient Buildings Hub

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy created the Energy Efficient Buildings Hub in Philadelphia, Pennsylvania to promote regional job creation and economic growth while also improving the energy...

  10. ESPC 2.0: How New Twists on Energy Savings Performance Contracting are Improving Energy Efficiency in U.S. Buildings

    Broader source: Energy.gov [DOE]

    Join Better Buildings Challenge Partners and Allies to learn how Energy Savings Performance Contracting (ESPC) is moving beyond the traditional education and hospital sector markets.

  11. Clean Energy Finance Guide for Residential and Commercial Building...

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

    Finance Guide for Residential and Commercial Building Improvements - Chapter 6 Clean Energy Finance Guide for Residential and Commercial Building Improvements - Chapter 6 Clean ...

  12. Building America Case Study: Supplemental Ductless Mini-Split...

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

    Partners: Florida Power & Light, fpl.com Building America Partnership for Improved ... The Building America Partnership for Improved Residential Construction BA-PIRC is a U.S. ...

  13. Clean Energy Finance Guide for Residential and Commercial Building...

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

    Clean Energy Finance Guide for Residential and Commercial Building Improvements - Chapter 8 Clean Energy Finance Guide for Residential and Commercial Building Improvements - ...

  14. Generation and applications of structure envelopes for porous...

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

    envelope, the surface between high- and low-electron-density regions, should be straightforward for a MOF. Herein an example of such structure solution of MOFs based on PXRD...

  15. Building America Webinar: Retrofitting Central Space Conditioning

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

    Strategies for Multifamily Buildings - Control strategies to improve hydronic space heating performance | Department of Energy Control strategies to improve hydronic space heating performance Building America Webinar: Retrofitting Central Space Conditioning Strategies for Multifamily Buildings - Control strategies to improve hydronic space heating performance This presentation is included in the July 16, 2014, webinar and discusses various control strategies to improve hydronic space heating

  16. Cooling season performance of an earth-sheltered office/dormitory building in Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Christian, J.E.

    1984-07-01

    Detailed hourly measurements taken in and around an underground office-dormitory building for two summers document energy savings; whole building-component interface problems; and specific cooling contributions from earth contact, interior thermal mass, and an economizer. The Joint Institute Dormitory (JID) saves about 30% compared with well-built above-grade buildings in a climate typical of Oak Ridge, Tennessee, and has the potential to save as much as 50%. The detailed measurements, which include extensive thermal comfort data, indicate that at least 90% of the occupants are comfortable all of the time. The thermal performance measurements and analysis determine that the peak cooling requirement of this building is 50% less than that of well-built above-grade structures, permitting a cost savings on installed cooling capacity. The dominant building components contributing to the good thermal performance are the structural thermal mass, the earth-covered roof, and the earth contact provided by the bermed walls and slab floor. The 372-m/sup 2/ (4000 gross ft/sup 2/) building used about $300 (at 5.7 cents/kWh) to cool and ventilate from May through September. Eliminating a number of building design and construction anomalies could improve the whole-building performance and reduce the seasonal cooling cost another $85. Close examination of the thermal performance of this building revealed that a very efficient heat pump and thermally sound envelope do not necessarily produce otpimum performance without careful attention given to component interface details. 8 references, 24 figures, 12 tables.

  17. Building America Webinar: Retrofitting Central Space Conditioning

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

    Strategies for Multifamily Buildings | Department of Energy Retrofitting Central Space Conditioning Strategies for Multifamily Buildings Building America Webinar: Retrofitting Central Space Conditioning Strategies for Multifamily Buildings The webinar on July 16, 2014, focused on improving the performance of central space conditioning systems in multifamily buildings. Presenters discussed hydronic heating strategies and the evaluation of thermostatically controlled radiator valves (TRVs).

  18. Cladding Attachment Over Thick Exterior Insulating Sheathing (Fact Sheet), Building America Case Study: Technology Solutions for New and Existing Homes, Building Technologies Office (BTO)

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

    Cladding Attachment Over Thick Exterior Insulating Sheathing Project InformatIon: Project name: Cladding Attachment Over Thick Exterior Insulating Sheathing Partners: Building Science Corporation www.buildingscience.com The Dow Chemical Company www.dow.com James Hardie Building Products www.jameshardie.com Building component: Building envelope component application: New and/or retrofit; Single and/or multifamily Year research conducted: 2011 through 2012 applicable climate Zone(s): All The

  19. Building America Best Practices Series: Volume 1; Builders and Buyers Handbook for Improving New Home Efficiency, Comfort, and Durability in the Hot and Humid Climate

    SciTech Connect (OSTI)

    2004-12-01

    This Building America Best Practices guide book is a resource to help builders large and small build high-quality, energy-efficient homes that achieve 30% energy savings in space conditioning and water heating in the hot and humid climate.

  20. Building America Best Practices Series: Volume 5; Builders and Buyers Handbook for Improving New Home Efficiency, Comfort, and Durability in the Marine Climate

    SciTech Connect (OSTI)

    2006-10-01

    This best practices guide is part of a series produced by Building America. The guide book is a resource to help builders large and small build high-quality, energy-efficient homes that achieve 30% energy savings in the Marine climate region.

  1. Buildings*","Buildings

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

    8. Primary Space-Heating Energy Sources, Number of Buildings for Non-Mall Buildings, 2003" ,"Number of Buildings (thousand)" ,"All Buildings*","Buildings with Space Heating","Primary Space-Heating Energy Source Used a" ,,,"Electricity","Natural Gas","Fuel Oil","District Heat" "All Buildings* ...............",4645,3982,1258,1999,282,63 "Building Floorspace" "(Square Feet)"

  2. Technology Solutions Case Study: Boiler Control Replacement for Hydronically Heated Multifamily Buildings, Cambridge, Massachusetts

    SciTech Connect (OSTI)

    2014-11-01

    The ARIES Collaborative, a U.S. Department of Energy Building America research team, partnered with NeighborWorks America affiliate Homeowners' Rehab Inc. (HRI) of Cambridge, Massachusetts, to study improvements to the central hydronic heating system in one of the nonprofit's housing developments. The heating controls in the three-building, 42-unit Columbia Cambridge Alliance for Spanish Tenants housing development were upgraded. Fuel use in the development was excessive compared to similar properties. A poorly insulated thermal envelope contributed to high energy bills, but adding wall insulation was not cost-effective or practical. The more cost-effective option was improving heating system efficiency, which faced several obstacles, including inflexible boiler controls and failed thermostatic radiator valves. Boiler controls were replaced with systems that offer temperature setbacks and one that controls heat based on apartment temperature in addition to outdoor temperature. Utility bill analysis shows that post-retrofit weather-normalized heating energy use was reduced by 10%-31% (average of 19%). Indoor temperature cutoff reduced boiler runtime (and therefore heating fuel consumption) by 28% in the one building in which it was implemented. Nearly all savings were obtained during night which had a lower indoor temperature cut off (68°F) than day (73° F). This implies that the outdoor reset curve was appropriately adjusted for this building for daytime operation. Nighttime setback of heating system supply water temperature had no discernable impact on boiler runtime or gas bills.

  3. Hydronic Heating Retrofits for Low-Rise Multifamily Buildings: Boiler Control Replacement and Monitoring

    SciTech Connect (OSTI)

    Dentz, J.; Henderson, H.; Varshney, K.

    2014-09-01

    The ARIES Collaborative, a U.S. Department of Energy Building America research team, partnered with NeighborWorks America affiliate Homeowners' Rehab Inc. (HRI) of Cambridge, Massachusetts, to study improvements to the central hydronic heating system in one of the nonprofit's housing developments. The heating controls in the three-building, 42-unit Columbia Cambridge Alliance for Spanish Tenants housing development were upgraded. Fuel use in the development was excessive compared to similar properties. A poorly insulated thermal envelope contributed to high energy bills, but adding wall insulation was not cost-effective or practical. The more cost-effective option was improving heating system efficiency. Efficient operation of the heating system faced several obstacles, including inflexible boiler controls and failed thermostatic radiator valves. Boiler controls were replaced with systems that offer temperature setbacks and one that controls heat based on apartment temperature in addition to outdoor temperature. Utility bill analysis shows that post-retrofit weather-normalized heating energy use was reduced by 10%-31% (average of 19%). Indoor temperature cutoff reduced boiler runtime (and therefore heating fuel consumption) by 28% in the one building in which it was implemented. Nearly all savings were obtained during night which had a lower indoor temperature cut off (68 degrees F) than day (73 degrees F). This implies that the outdoor reset curve was appropriately adjusted for this building for daytime operation. Nighttime setback of heating system supply water temperature had no discernable impact on boiler runtime or gas bills.

  4. Building Energy Optimization Analysis Method (BEopt) - Building America Top

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

    Innovation | Department of Energy Energy Optimization Analysis Method (BEopt) - Building America Top Innovation Building Energy Optimization Analysis Method (BEopt) - Building America Top Innovation House graphic from BEopt software. To achieve Building America's ambitious energy-efficiency goals, it becomes increasingly important that researchers can identify the most cost-effective, high-performance improvements. This Top Innovation profile describes BEopt, which has proven to be an

  5. Building America Building Science Translator | Department of Energy

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

    Translator Building America Building Science Translator Words are a big deal. A very big deal. With that in mind, DOE has worked extensively with housing industry representatives and building science experts over the past year compiling a new building science glossary that translates technical jargon into an improved consumer experience. Now there is a huge 'collective impact' opportunity to more effectively convey the value of high-performance homes to consumers and the media using these 'power

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    SciTech Connect (OSTI)

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    2010-12-31

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

  7. Building America Best Practices Series: Volume 3; Builders and Buyers Handbook for Improving New Home Efficiency, Comfort, and Durability in the Cold and Very Cold Climates

    SciTech Connect (OSTI)

    2005-08-01

    The guide book is a resource to help builders large and small build high-quality, energy-efficient homes that achieve 30% energy savings in space conditioning and water heating in the cold and very cold climates.

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    SciTech Connect (OSTI)

    2005-09-01

    This guide book is a resource to help builders large and small build high-quality, energy-efficient homes that achieve 30% energy savings in space conditioning and water heating in the mixed-humid climate region.

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    SciTech Connect (OSTI)

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    ScienceCinema (OSTI)

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