National Library of Energy BETA

Sample records for attic floor joists

  1. Innovative residential floor construction: Structural evaluation of steel joists with pre-formed web openings

    SciTech Connect (OSTI)

    Elhajj, N.R.

    1999-03-01

    Since 1992, the US Department of Housing and Urban Development has sponsored numerous studies to identify, evaluate, and implement innovative structural materials, such as cold-formed steel (CFS), in the residential market. The use of CFS is still very limited, partly because steel is not being effectively integrated into conventional home construction. One of the major barriers to the use of CFS floor joists is the impact it has on placement of large waste drains and ductwork installed in floor systems. This report provides an overview of tests conducted by the NAHB to integrate these systems with CFS. A brief literature review of relevant work followed by a detailed overview of the experimental and analytical approach are also provided. The report recommends adoption of the research findings in residential and commercial applications.

  2. Analysis of Joist Masonry Moisture Content Monitoring

    SciTech Connect (OSTI)

    Ueno, Kohta

    2015-10-08

    There are many existing buildings with load-bearing mass masonry walls, whose energy performance could be improved with the retrofit of insulation. However, adding insulation to the interior side of walls of such masonry buildings in cold (and wet) climates may cause performance and durability problems. Some concerns, such as condensation and freeze-thaw have known solutions. But wood members embedded in the masonry structure will be colder (and potentially wetter) after an interior insulation retrofit. Moisture content & relative humidity were monitored at joist ends in historic mass brick masonry walls retrofitted with interior insulation in a cold climate (Zone 5A); data were collected from 2012-2015. Eleven joist ends were monitored in all four orientations. One limitation of these results is that the renovation is still ongoing, with limited wintertime construction heating and no permanent occupancy to date. Measurements show that many joists ends remain at high moisture contents, especially at north- and east-facing orientations, with constant 100% RH conditions at the worst cases. These high moisture levels are not conducive for wood durability, but no evidence for actual structural damage has been observed. Insulated vs. non-insulated joist pockets do not show large differences. South facing joists have safe (10-15%) moisture contents. Given the uncertainty pointed out by research, definitive guidance on the vulnerability of embedded wood members is difficult to formulate. In high-risk situations, or when a very conservative approach is warranted, the embedded wood member condition can be eliminated entirely, supporting the joist ends outside of the masonry pocket.

  3. Building America Whole-House Solutions for Existing Homes: Inverted Attic

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

    Bulkhead for HVAC Ductwork | Department of Energy Inverted Attic Bulkhead for HVAC Ductwork Building America Whole-House Solutions for Existing Homes: Inverted Attic Bulkhead for HVAC Ductwork This occupied test home received a modified truss system to accommodate ductwork within an inverted insulated bulkhead along the attic floor, which saves energy by placing heating, ventilating, and air-conditioning (HVAC) ductwork within the home's thermal boundary. Inverted Attic Bulkhead for HVAC

  4. Unvented, Conditioned Attics - Building America Top Innovation...

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

    Attics - Building America Top Innovation Unvented, Conditioned Attics - Building America Top Innovation This photo shows an attic that is conditioned (insulated) and showing ...

  5. Roof and Attic Design Guidelines for new and retrofit Construction of Homes in Hot and Coild Climates

    SciTech Connect (OSTI)

    Desjarlais, Andre Omer; LaFrance, Marc

    2013-01-01

    Some guidelines for improving the energy efficiency of roofs and attics are presented and are based on the research of the DOE Building Technology. The results of combined analytical and experimental studies were used to benchmark computer tools, which in turn, were used to simulate homes in hot and cold climates. Adding floor and roof insulation, above deck ventilation, radiant barriers, cool color shingle, metal or tile roofs, sealing the attic floor, sealing the duct system and sealing the attic were simulated to compute the cost of energy savings. Results are prioritized to help building owners make an informed economic decision when contemplating roof and attic retrofits. Sealing the attic floor is a top retrofit option. The sealed attic approach and a new prototype roof assembly an insulated and ventilated roof are good options for retrofit work but have paybacks ranging from 15 to 25 years. A new sealed attic concept was simulated and computations show its simple payback is about 10 to 12 years in hot and cold climates; its first cost is significantly reduced from that of a spray foam approach. For new construction the best option is to keep the ducts out of the attic, make sure the attic floor is sealed and add at least code level of insulation to the ceiling.

  6. Thermal Performance Evaluation of Attic Radiant Barrier Systems Using the Large Scale Climate Simulator (LSCS)

    SciTech Connect (OSTI)

    Shrestha, Som S; Miller, William A; Desjarlais, Andre Omer

    2013-01-01

    Application of radiant barriers and low-emittance surface coatings in residential building attics can significantly reduce conditioning loads from heat flow through attic floors. The roofing industry has been developing and using various radiant barrier systems and low-emittance surface coatings to increase energy efficiency in buildings; however, minimal data are available that quantifies the effectiveness of these technologies. This study evaluates performance of various attic radiant barrier systems under simulated summer daytime conditions and nighttime or low solar gain daytime winter conditions using the large scale climate simulator (LSCS). The four attic configurations that were evaluated are 1) no radiant barrier (control), 2) perforated low-e foil laminated oriented strand board (OSB) deck, 3) low-e foil stapled on rafters, and 4) liquid applied low-emittance coating on roof deck and rafters. All test attics used nominal RUS 13 h-ft2- F/Btu (RSI 2.29 m2-K/W) fiberglass batt insulation on attic floor. Results indicate that the three systems with radiant barriers had heat flows through the attic floor during summer daytime condition that were 33%, 50%, and 19% lower than the control, respectively.

  7. Performance Assessment of Photovoltaic Attic Ventilator Fans

    Broader source: Energy.gov [DOE]

    A case study of photovoltaic attic ventilator fans was conducted on an occupied single family home in Central Florida. Two fans were installed at mid-summer in an instrumented home where attic air temperature, meteorological conditions and space cooling electric power were measured. The home already had an attic radiant barrier, but still experienced attic air temperatures in excess of 130oF.

  8. Attic or Roof? An Evaluation of Two Advanced Weatherization Packages

    SciTech Connect (OSTI)

    Neuhauser, K.

    2012-06-01

    This project examines implementation of advanced retrofit measures in the context of a large-scale weatherization program and the archetypal Chicago brick bungalow. One strategy applies best practice air sealing methods and a standard insulation method to the attic floor. The other strategy creates an unvented roof assembly using materials and methods typically available to weatherization contractors. Through implementations of the retrofit strategies in a total of eight (8) test homes, the research found that the two different strategies achieve similar reductions in air leakage measurement (55%) and predicted energy performance (18%) relative to the pre-retrofit conditions.

  9. Modeling the Energy Efficiency of Residential Attic Assemblies...

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

    Modeling the Energy Efficiency of Residential Attic Assemblies Modeling the Energy Efficiency of Residential Attic Assemblies This graphic depicts all the modes of heat transfer ...

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

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

    Attic Air Sealing Guide - Building America Top Innovation Attic Air Sealing Guide - Building America Top Innovation Image showing step-by-step instructions for air sealing. One of ...

  11. Ceilings and Attics: Install Insulation and Provide Ventilation

    SciTech Connect (OSTI)

    2000-02-01

    This document provides guidelines for installing insulation and managing ventilation through your attic.

  12. Issues related to venting of attics and cathedral ceilings

    SciTech Connect (OSTI)

    TenWolde, A.; Rose, W.B.

    1999-07-01

    Current model building codes require attic ventilation in all US climates. Originally, these requirements were strictly based on concerns for condensation in attics during winter in cold climates, and they were based on limited technical information. Nevertheless, attic ventilation has become the uncontested strategy to minimize condensation and ice dams during winter and extreme attic temperatures during summer. However, other strategies exist that address each of these problems as well as or better than attic ventilation. This paper examines issues such as summer attic temperatures, ice dams, and shingle durability and discusses the relative merits of attic ventilation compared to alternative design approaches in various climates. The authors support current recommendations for attic ventilation in cold and mixed climates but recommend that attic ventilation be treated as a design option in warm, humid climates. The authors review the new information on attic and roof ventilation in the 1997 ASHRAE Handbook--Fundamentals and discuss the reasons for the changes.

  13. Unvented, Conditioned Attics - Building America Top Innovation | Department

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

    of Energy Attics - Building America Top Innovation Unvented, Conditioned Attics - Building America Top Innovation This photo shows an attic that is conditioned (insulated) and showing ductwork. The preference for a large segment of the U.S. housing industry has been to locate HVAC systems in unconditioned attics, but this is highly inefficient. The additional heat loss and gain of ducts in unconditioned, vented attics increases energy use for heating and cooling by 10%. Additionally, duct

  14. A Hygrothermal Risk Analysis Applied to Residential Unvented Attics

    SciTech Connect (OSTI)

    Pallin, Simon B; Kehrer, Manfred

    2013-01-01

    Aresidential building, constructed with an unvented attic, is acommonroof assembly in the United States.The expected hygrothermal performance and service life of the roof are difficult to estimate due to a number of varying parameters.Typical parameters expected to vary are the climate, direction, and slope of the roof as well as the radiation properties of the surface material. Furthermore, influential parameters are indoor moisture excess, air leakages through the attic floor, and leakages from air-handling unit and ventilation ducts. In addition, the type of building materials such as the insulation material and closed or open cell spray polyurethane foam will influence the future performance of the roof. A development of a simulation model of the roof assembly will enable a risk and sensitivity analysis, in which the most important varying parameters on the hygrothermal performance can be determined. The model is designed to perform probabilistic simulations using mathematical and hygrothermal calculation tools. The varying input parameters can be chosen from existing measurements, simulations, or standards. An analysis is applied to determine the risk of consequences, such as mold growth, rot, or energy demand of the HVAC unit. Furthermore, the future performance of the roof can be simulated in different climates to facilitate the design of an efficient and reliable roof construction with the most suitable technical solution and to determine the most appropriate building materials for a given climate

  15. Measure Guideline: Guide to Attic Air Sealing

    SciTech Connect (OSTI)

    Lstiburek, J.

    2014-09-01

    The Guide to Attic Air Sealing was completed in 2010 and although not in the standard Measure Guideline format, is intended to be a Measure Guideline on Attic Air Sealing. The guide was reviewed during two industry stakeholders meetings held on December 18th, 2009 and January 15th, 2010, and modified based on the comments received. Please do not make comments on the Building America format of this document. The purpose of the Guide to Attic Air Sealing is to provide information and recommendations for the preparation work necessary prior to adding attic insulation. Even though the purpose of this guide is to save energy - health, safety and durability should not be compromised by energy efficiency. Accordingly, combustion safety and ventilation for indoor air quality are addressed first. Durability and attic ventilation then follow. Finally, to maximize energy savings, air sealing is completed prior to insulating. The guide is intended for home remodelers, builders, insulation contractors, mechanical contractors, general contractors who have previously done remodeling and homeowners as a guide to the work that needs to be done.

  16. Savings Project: Attic Stairs Cover Box | Department of Energy

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

    closings Have an R-value similar to the rest of the attic insulation Provide an air seal. ... The box should rest squarely on top of the attic stairs frame or on wood stops installed ...

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

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

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

  18. Measure Guideline: Guide to Attic Air Sealing

    SciTech Connect (OSTI)

    Lstiburek, Joseph

    2014-09-01

    The purpose of this measure guideline is to provide information and recommendations for the preparation work necessary prior to adding attic insulation. Even though the purpose of this guide is to save energy, health, safety, and durability should not be compromised by energy efficiency. Accordingly, combustion safety and ventilation for indoor air quality are addressed first. Durability and attic ventilation then follow. Finally, to maximize energy savings, air sealing is completed prior to insulating. The guide is intended for home remodelers, builders, insulation contractors, mechanical contractors, general contractors who have previously done remodeling and homeowners as a guide to the work that needs to be done.

  19. Building America Top Innovations 2012: Unvented, Conditioned Attics

    SciTech Connect (OSTI)

    none,

    2013-01-01

    This Building America Top Innovations profile describes Building America research showing an unvented attic insulated along the roof line provides better energy performance than a vented attic when HVAC ducts are located in the attic and there are numerous penetrations through the ceiling deck.

  20. Internal Roof and Attic Thermal Radiation Control Retrofit Strategies for Cooling-Dominated Climates

    SciTech Connect (OSTI)

    Fallahi, A.; Duraschlag, H.; Elliott, D.; Hartsough, J.; Shukla, N.; Kosny, J.

    2013-12-01

    This project evaluates the cooling energy savings and cost effectiveness of radiation control retrofit strategies for residential attics in U.S. cooling-dominated climates. Usually, in residential applications, radiation control retrofit strategies are applied below the roof deck or on top of the attic floor insulation. They offer an alternative option to the addition of conventional bulk insulation such as fiberglass or cellulose insulation. Radiation control is a potentially low-cost energy efficiency retrofit strategy that does not require significant changes to existing homes. In this project, two groups of low-cost radiation control strategies were evaluated for southern U.S. applications. One uses a radiant barrier composed of two aluminum foils combined with an enclosed reflective air space and the second uses spray-applied interior radiation control coatings (IRCC).

  1. Internal Roof and Attic Thermal Radiation Control Retrofit Strategies for Cooling-Dominated Climates

    SciTech Connect (OSTI)

    Fallahi, A.; Durschlag, H.; Elliott, D.; Hartsough, J.; Shukla, N.; Kosny, J.

    2013-12-01

    This project evaluates the cooling energy savings and cost effectiveness of radiation control retrofit strategies for residential attics in U.S. cooling-dominated climates. Usually, in residential applications, radiation control retrofit strategies are applied below the roof deck or on top of the attic floor insulation. They offer an alternative option to the addition of conventional bulkinsulation such as fiberglass or cellulose insulation. Radiation control is a potentially low-cost energy efficiency retrofit strategy that does not require significant changes to existing homes. In this project, two groups of low-cost radiation control strategies were evaluated for southern U.S. applications. One uses a radiant barrier composed of two aluminum foils combined with an enclosedreflective air space and the second uses spray-applied interior radiation control coatings (IRCC).

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

    Energy Savers [EERE]

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

  3. Moisture performance of sealed attics in the mixed-humid climate

    SciTech Connect (OSTI)

    Boudreaux, Philip R; Pallin, Simon B; Jackson, Roderick K

    2013-12-01

    Oak Ridge National Laboratory studied 8 homes in the mixed-humid climate, 4 with vented attics and 4 with sealed attics. ORNL wanted to understand the moisture performance of the sealed attic and how it affected the interior environment. We found that the attic and interior of sealed attic homes were more humid than the attic and interior observed in vented attic homes. This is due to the lack of ventilation in the sealed attic. Historically attics have been vented to dehumidify the attic and interior of the home. A sealed attic design greatly reduces the venting potential and thus this drying pathway and can cause elevated interior moisture over a vented attic home. Despite the elevated attic and interior moisture in the sealed attic homes, so far no mold or material degradation has been found. The roof sheathing moisture content has stayed below 20%, indicating low potential for material degradation. Also the relative humidity at the roof sheathing has stayed within the ASHRAE 160 design criteria except for a short time during the 2011/2012 winter. This was due to a combination of the sealed attic design (minimal venting to the outside) and the duct work not being operated in the attic which usually provides a dehumidification pathway. It was also found that when the humidity was controlled using the HVAC system, it resulted in 7% more cooling energy consumption. In the mixed-humid climate this reduces the cost effectiveness of the sealed attic design as a solution for bringing ducts into a semi-conditioned space. Because of this we are recommending the other alternatives be used to bringing ducts into the conditioned space in both new construction and retrofit work in the mixed-humid climate.

  4. Cost-Optimized Attic Insulation Solution for Factory-Built Homes...

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

    attic insulation R-value than is typically installed in manufactured homes. The simplicity of this dense-pack solution to increasing attic insulation R-value promises real hope ...

  5. Ghosts in the Attic - Horror Stories from the Field (What to...

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

    Ghosts in the Attic - Horror Stories from the Field (What to Do When Things Go Wrong) (201) Ghosts in the Attic - Horror Stories from the Field (What to Do When Things Go Wrong)...

  6. Cost-Optimized Attic Insulation Solution for Factory-Built Homes - Building

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

    America Top Innovation | Department of Energy Optimized Attic Insulation Solution for Factory-Built Homes - Building America Top Innovation Cost-Optimized Attic Insulation Solution for Factory-Built Homes - Building America Top Innovation Increasing attic insulation in manufactured housing has been a significant challenge due to cost, production, and transportation constraints. This 2014 Top Innovation highlights research conducted by the Top Innov Manufact home attic insul -guy blowing

  7. Where to Insulate in a Home | Department of Energy

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

    Insulation » Where to Insulate in a Home Where to Insulate in a Home Examples of where to insulate. 1. In unfinished attic spaces, insulate between and over the floor joists to seal off living spaces below. If the air distribution is in the attic space, then consider insulating the rafters to move the distribution into the conditioned space. (1A) attic access door 2. In finished attic rooms with or without dormer, insulate (2A) between the studs of "knee" walls, (2B) between the studs

  8. Moisture Risk in Unvented Attics Due to Air Leakage Paths

    SciTech Connect (OSTI)

    Prahl, D.; Shaffer, M.

    2014-11-01

    IBACOS completed an initial analysis of moisture damage potential in an unvented attic insulated with closed-cell spray polyurethane foam. To complete this analysis, the research team collected field data, used computational fluid dynamics to quantify the airflow rates through individual airflow (crack) paths, simulated hourly flow rates through the leakage paths with CONTAM software, correlated the CONTAM flow rates with indoor humidity ratios from Building Energy Optimization software, and used Wärme und Feuchte instationär Pro two-dimensional modeling to determine the moisture content of the building materials surrounding the cracks. Given the number of simplifying assumptions and numerical models associated with this analysis, the results indicate that localized damage due to high moisture content of the roof sheathing is possible under very low airflow rates. Reducing the number of assumptions and approximations through field studies and laboratory experiments would be valuable to understand the real-world moisture damage potential in unvented attics.

  9. Moisture Risk in Unvented Attics Due to Air Leakage Paths

    SciTech Connect (OSTI)

    Prahl, D.; Shaffer, M.

    2014-11-01

    IBACOS completed an initial analysis of moisture damage potential in an unvented attic insulated with closed-cell spray polyurethane foam. To complete this analysis, the research team collected field data, used computational fluid dynamics to quantify the airflow rates through individual airflow (crack) paths, simulated hourly flow rates through the leakage paths with CONTAM software, correlated the CONTAM flow rates with indoor humidity ratios from Building Energy Optimization software, and used Warme und Feuchte instationar Pro two-dimensional modeling to determine the moisture content of the building materials surrounding the cracks. Given the number of simplifying assumptions and numerical models associated with this analysis, the results indicate that localized damage due to high moisture content of the roof sheathing is possible under very low airflow rates. Reducing the number of assumptions and approximations through field studies and laboratory experiments would be valuable to understand the real-world moisture damage potential in unvented attics.

  10. Measure Guideline. Air Sealing Attics in Multifamily Buildings

    SciTech Connect (OSTI)

    Otis, Casey; Maxwell, Sean

    2012-06-01

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

  11. Measure Guideline: Air Sealing Attics in Multifamily Buildings

    SciTech Connect (OSTI)

    Otis, C.; Maxwell, S.

    2012-06-01

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

  12. Ducts in the Attic? What Were They Thinking? Preprint

    SciTech Connect (OSTI)

    Roberts, D.; Winkler, J.

    2010-08-01

    As energy-efficiency efforts focus increasingly on existing homes, we scratch our heads about construction decisions made 30, 40, 50-years ago and ask: 'What were they thinking?' A logical follow-on question is: 'What will folks think in 2050 about the homes we're building today?' This question can lead to a lively discussion, but the current practice that we find most alarming is placing ducts in the attic. In this paper, we explore through literature and analysis the impact duct location has on cooling load, peak demand, and energy cost in hot climates. For a typical new home in these climates, we estimate that locating ducts in attics rather than inside conditioned space increases the cooling load 0.5 to 1 ton, increases cooling costs 15% and increases demand by 0.75 kW. The aggregate demand to service duct loss in homes built in Houston, Las Vegas, and Phoenix during the period 2000 through 2009 is estimated to be 700 MW. We present options for building homes with ducts in conditioned space and demonstrate that these options compare favorably with other common approaches to achieving electricity peak demand and consumption savings in homes.

  13. Indoor climate and moisture durability performances of houses with unvented attic roof constructions in a mixed-humid climate.

    SciTech Connect (OSTI)

    Pallin, Simon B.; Boudreaux, Philip R.; Jackson, Roderick K.

    2014-10-01

    A sealed or unvented attic is an energy-efficient envelope component that can reduce the amount of energy a house consumes for space conditioning if the air handler and/or ducts are located in the attic. The attic is typically sealed by using spray foam on the underside of the roof deck and covering the soffit, ridge and gable vents to minimize air leakage from the attic to the outside. This approach can save up to 10% in space-conditioning energy when ducts are located in the attic (DOE 2013). Past research done by ORNL and Florida Solar Energy Center suggests that in more hot, humid climates, an unvented attic could potentially create a more humid, uncomfortable living environment than a vented attic (Colon 2011, Boudreaux, Pallin et al. 2013). Research showed that controlling the higher indoor humidity could reduce the energy savings from the sealed, unvented attic, which in turn would decrease the energy savings payback. Research also showed that the roof assembly (5.5 inches of open-cell foam, 1inch of closed-cell foam, OSB, felt paper, and asphalt shingles) stored moisture, thus acting as a moisture buffer. During the fall and winter, the roof assembly stored moisture and during the spring and summer it released moisture. This phenomenon is not seen in a vented attic, in which the air exchange rate to the outside is greater and, in the winter, helps to dehumidify the attic air. It was also seen that in a vented attic, the direction of water vapor diffusion is on average from the attic to the interior of the house. Air leakage from the attic to the interior also occurs during more of the year in a house with an unvented attic than in one with a vented attic. These discoveries show that the moisture dynamics in a house with an unvented attic are much different from those in a house with a vented attic. This study reports on a series of computer model investigations completed to determine the key variables impacting indoor comfort and the durability of roof

  14. Look Up to See Your Bills Go Down: Making Your Attic More Efficient |

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

    Department of Energy Look Up to See Your Bills Go Down: Making Your Attic More Efficient Look Up to See Your Bills Go Down: Making Your Attic More Efficient July 18, 2011 - 5:29pm Addthis Allison Casey Senior Communicator, NREL This year at my house, we have been on a quest to make our attic more energy efficient. I think we realized just how much this unseen area contributes to our overall comfort -not to mention what we pay to heat and cool the house. The first thing we did was install

  15. Interaction of Unvented Attics With Living Space in Three Northeast Homes

    SciTech Connect (OSTI)

    Puttagunta, S.; Faakye, O.

    2015-02-01

    Unvented roof assemblies are becoming common in North American construction. It is estimated that over 100,000 have been constructed since 1995 (Schumacher 2007). According to RECS 2011, more than 30% of homes with attics can be found in the very cold/cold climate areas, which equals about 10.4 million housing units. The magnitude of these numbers emphases the significance of properly understanding how the attic conditions vary with respect to the conditioned space below.

  16. Attic Retrofits Using Nail-Base Insulated Panels | Department of Energy

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

    Attic Retrofits Using Nail-Base Insulated Panels Attic Retrofits Using Nail-Base Insulated Panels Photo courtesy of the Structural Insulated Panel Association. Photo courtesy of the Structural Insulated Panel Association. Lead Performer: Home Innovation Research Labs-Upper Marlboro, MD Partners: Structural Insulated Panel Association, American Chemistry Council, Forest Products Laboratory, DuPont, APA-The Engineered Wood Association, Insurance Institute for Business and Home Safety, Remodeling

  17. Building America Top Innovations 2014 Profile: Cost-Optimized Attic Insulation Solution for Factory-Built Homes

    SciTech Connect (OSTI)

    none,

    2014-11-01

    This 2014 Top Innovation profile describes a low-cost, low-tech attic insulation technique developed by the ARIES Building America team with help from Southern Energy Homes and Johns Manville. Increasing attic insulation in manufactured housing has been a significant challenge due to cost, production and transportation constraints. The simplicity of this dense-pack solution to increasing attic insulation R-value promises real hope for widespread industry adoption.

  18. Effectiveness of thermal insulation in the attic spaces of manufactured homes

    SciTech Connect (OSTI)

    Yarbrough, D.W.; Graves, R.S.; McElroy, D.L.

    1988-01-01

    The thermal resistance of loose-fill insulations is reduced by settling that occurs after installation. The use of loose-fill insulation in manufactured homes is increasing and a need exists to evaluate the effectiveness of this application. Settling of loose- fill insulation in manufactured homes occurs during construction and over-the-road delivery. Measurements of the settling of a stabilized cellulosic insulation in four units has shown that a small amount of adhesive results in a product exhibiting 3 to 5% loss of thickness during manufacture and less than 2% additional settling during delivery. This thickness loss of about 6% is small in comparison with the unstabilized loose-fill rock wool that was observed in two units. The effectiveness of attic insulations in manufactured home units is significantly affected by the limited space available in many designs. Calculations of the thermal resistance that can be achieved in typical attics will be discussed. The results are that loose-fill materials are a better choice than batts for manufactured home attic insulation when truss design prevents complete coverage and that attic design must be improved in many cases in order to achieve specified R-values. 6 refs., 14 figs., 2 tabs.

  19. SHERATON STATION SQUARE FLOOR PLAN FIRST FLOOR

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

    SHERATON STATION SQUARE FLOOR PLAN FIRST FLOOR 3 DETAILED PROG RAM MONDAY, AUGUST 8, 2016 REGISTRATION 7:00 a.m. - 8:00 a.m. Grand Station Foyer CONTINENTAL BREAKFAST 7:00 a.m. - 8:00 a.m. Grand Station III GRAND STATION I & II OPENING SESSION Moderator: Lynn Brickett, U.S. Department of Energy, National Energy Technology Laboratory 8:00 a.m. Welcoming Remarks Lynn Brickett, U.S. Department of Energy, National Energy Technology Laboratory 8:05 a.m. Overview of DOE's Clean Coal Program

  20. Ghosts in the Attic- Horror Stories from the Field, What to Do When Things Go Wrong (201)

    Broader source: Energy.gov [DOE]

    Better Buildings Residential Network Peer Exchange Call Series: Ghosts in the Attic - Horror Stories from the Field, What to Do When Things Go Wrong (201), call slides and discussion summary.

  1. U. S. Attic Grsrgy 'bmiss~o3 U. S. Atomic lb-al-w CamLf3sion December 27, S.957

    Office of Legacy Management (LM)

    a . - 3 U. S. Attic Grsrgy 'bmiss~o3 U. S. Atomic lb-al-w CamLf3sion December 27, S.957

  2. From Shop Floor to Top Floor: Best Business Practices in Energy...

    Open Energy Info (EERE)

    Shop Floor to Top Floor: Best Business Practices in Energy Efficiency Jump to: navigation, search Tool Summary LAUNCH TOOL Name: From Shop Floor to Top Floor: Best Business...

  3. Community-Scale Attic Retrofit and Home Energy Upgrade Data Mining

    SciTech Connect (OSTI)

    Berman, M.; Smith, P.; Jackson, J.

    2015-05-07

    The U.S. Department of Energy’s Building America research team, Alliance for Residential Building Innovation (ARBI), implemented a project to increase residential retrofits in Davis, California. The project used a neighborhood-focused strategy for implementation and a low-cost retrofit program that focused on upgraded attic insulation and duct sealing. ARBI worked with a community partner, the not-for-profit Cool Davis Initiative, as well as selected area contractors to implement a strategy that sought to capitalize on the strong local expertise of partners and the unique aspects of the Davis, California, community. Working with community partners also allowed ARBI to collect and analyze data about effective messaging tactics for community-based retrofit programs.

  4. Community-Scale Attic Retrofit and Home Energy Upgrade Data Mining

    SciTech Connect (OSTI)

    Berman, M.; Smith, P.; Jackson, J.

    2015-05-01

    Residential retrofit is an essential element of any comprehensive strategy for improving residential energy efficiency, yet remains a challenging proposition to sell to homeowners due to low levels of awareness and lack of financial incentive. The Alliance for Residential Building Innovation (ARBI) implemented a project to increase residential retrofits in Davis, CA called Retrofit Your Attic developed and appropriate data sets were uploaded to the Building America Field Data Repository (BAFDR). Two key conclusions are a broad based public awareness campaign is needed to increase understanding of the makeup and benefits of residential retrofits and a dramatic shift is needed so that efficient homes are appraised and valued at higher levels. The SAVE Act, proposed bipartisan federal legislation [S.1106], offers one way to accomplish this.

  5. Low floor mass transit vehicle

    DOE Patents [OSTI]

    Emmons, J. Bruce; Blessing, Leonard J.

    2004-02-03

    A mass transit vehicle includes a frame structure that provides an efficient and economical approach to providing a low floor bus. The inventive frame includes a stiff roof panel and a stiff floor panel. A plurality of generally vertical pillars extend between the roof and floor panels. A unique bracket arrangement is disclosed for connecting the pillars to the panels. Side panels are secured to the pillars and carry the shear stresses on the frame. A unique seating assembly that can be advantageously incorporated into the vehicle taking advantage of the load distributing features of the inventive frame is also disclosed.

  6. Building America Top Innovations 2013 Profile … Next Generation...

    Energy Savers [EERE]

    2) rim joist window headers, and 3) continuous sheathing for raised heel trusses. ... Rim Joist Window Headers In two-story homes, the space above the first-floor windows and ...

  7. CXD 4600, 9103 Second Floor Refurbishment

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

    9103 Second Floor Refurbishment (4600) Y-12 Site Oak Ridge, Anderson County, Tennessee The proposed action include: (1) development of the project baseline, design, and and...

  8. Energy Savings and Peak Demand Reduction of a SEER 21 Heat Pump vs. a SEER 13 Heat Pump with Attic and Indoor Duct Systems

    SciTech Connect (OSTI)

    Cummings, J.; Withers, C.

    2014-03-01

    This report describes results of experiments that were conducted in an unoccupied 1600 square foot house--the Manufactured Housing (MH Lab) at the Florida Solar Energy Center (FSEC)--to evaluate the delivered performance as well as the relative performance of a SEER 21 variable capacity heat pump versus a SEER 13 heat pump. The performance was evaluated with two different duct systems: a standard attic duct system and an indoor duct system located in a dropped-ceiling space.

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

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

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

  10. From Shop Floor to Top Floor: Best Business Practices in Energy Efficiency

    Broader source: Energy.gov [DOE]

    This document is the presentation delivered on the Pew Center on Global Climate Change's report From Shop Floor to Top Floor: Best Business Practices in Energy Efficiency, which describes leading corporate energy efficiency programs.

  11. An in-situ evaluation of the settling of loose-fill rockwool insulation in the attics of two manufactured home units

    SciTech Connect (OSTI)

    Graves, R.S.; Yarbrough, D.W.

    1987-01-01

    The effect of vibrations due to manufacturing and transport on the thickness, density, and calculated thermal resistance (R-value) of loose-fill rock wool insulation installed in two manufactured home units has been determined. Thickness and density measurements on blown attic insulation were made after installation, at the end of the manufacturing process, and after the units were towed 265 miles. These measurements were used to calculate R-values for the attic insulation. The end sections of the two units showed an overall insulation thickness decrease of about 16% and an average R-value change from 31.2 to 28.8 ft/sup 2/.h./sup 0/ F/Btu. An estimated R-value greater than 30 ftc/sup 2/.h./sup 0/ F/Btu resulted from averaging the end and middle sections of the two units. The effect of reduced thickness along the edges of the attic space was not included in the estimate. 8 refs., 2 figs., 1 tab.

  12. Thicknesses, densities, and calculated thermal resistances for loose-fill rock wool installed in two attic sections of a manufactured house

    SciTech Connect (OSTI)

    Graves, R.S.; Yarbrough, D.W.

    1986-02-01

    The effect of vibrations due to manufacturing and transport on the thickness, density, and calculated thermal resistance (R-value) of loose-fill rock wool insulation installed in two manufactured home units has been determined. Thickness and density measurements on blown attic insulation were made after installation, at the end of the manufacturing process, and after the units were towed 265 miles. These measurements were used to calculate R-values for the attic insulation. The end sections of the two units showed an overall insulation thickness decrease of about 16% and an average R-value change from 31.2 to 28.8 ft/sup 2/ x h x /sup 0/F/Btu. An estimated R-value greater than 30 ft/sup 2/ x h x /sup 0/F/Btu resulted from averaging the end and middle sections of the two units. The effect of reduced thickness along the edges of the attic space was not included in the estimate.

  13. CASE STUDY OF DUCT RETROFIT OF A 1985 HOME AND GUIDELINES FOR ATTIC AND CRAWL SPACE DUCT SEALING

    SciTech Connect (OSTI)

    Boudreaux, Philip R; Christian, Jeffrey E; Jackson, Roderick K

    2012-01-01

    The U.S. Department of Energy (DOE) is fully committed to research for developing the information and capabilities necessary to provide cost-effective residential retrofits yielding 50% energy savings within the next several years. Heating, ventilation, and air conditioning (HVAC) is the biggest energy end use in the residential sector, and a significant amount of energy can be wasted through leaky ductwork in unconditioned spaces such as attics and crawl spaces. A detailed duct sealing case study is presented for one house along with nine brief descriptions of other duct retrofits completed in the mixed-humid climate. Costs and estimated energy savings are reported for most of the ten houses. Costs for the retrofits ranged from $0.92/ft2 to $1.80/ft2 of living space and estimated yearly energy cost savings due to the duct retrofits range from 1.8% to 18.5%. Lessons learned and duct sealing guidelines based on these ten houses, as well as close work with the HVAC industry in the mixed-humid climate of East Tennessee, northern Georgia, and south-central Kentucky are presented. It is hoped that the lessons learned and guidelines will influence local HVAC contractors, energy auditors, and homeowners when diagnosing or repairing HVAC duct leakage and will be useful for steering DOE s future research in this area.

  14. Property:Building/FloorAreaResidential | Open Energy Information

    Open Energy Info (EERE)

    BuildingFloorAreaResidential Jump to: navigation, search This is a property of type Number. Floor area for Residential Pages using the property "BuildingFloorAreaResidential"...

  15. Property:Building/FloorAreaHotels | Open Energy Information

    Open Energy Info (EERE)

    BuildingFloorAreaHotels Jump to: navigation, search This is a property of type Number. Floor area for Hotels Pages using the property "BuildingFloorAreaHotels" Showing 1 page...

  16. Floor Support | Stanford Synchrotron Radiation Lightsource

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

    Floor Support Service Responsible Person BLDG Extension (650) 926-XXXX Beam Status Duty Operator 120 926-2326 (BEAM) Duty Operator Cell Duty Operator 120 926-4040 User ProgramBeam...

  17. Improved Recovery from Gulf of Mexico Reservoirs, Volume 4, Comparison of Methane, Nitrogen and Flue Gas for Attic Oil. February 14, 1995 - October 13, 1996. Final Report

    SciTech Connect (OSTI)

    Wolcott, Joanne; Shayegi, Sara

    1997-01-13

    Gas injection for attic oil recovery was modeled in vertical sandpacks to compare the process performance characteristics of three gases, namely methane, nitrogen and flue gas. All of the gases tested recovered the same amount of oil over two cycles of gas injection. Nitrogen and flue gas recovered oil more rapidly than methane because a large portion of the methane slug dissolved in the oil phase and less free gas was available for oil displacement. The total gas utilization for two cycles of gas injection was somewhat better for nitrogen as compared to methane and flue gas. The lower nitrogen utilization was ascribed to the lower compressibility of nitrogen.

  18. Property:Building/FloorAreaUnheatedRentedPremises | Open Energy...

    Open Energy Info (EERE)

    Property Edit with form History Property:BuildingFloorAreaUnheatedRentedPremises Jump to: navigation, search This is a property of type Number. Floor area for Unheated but...

  19. Property:Building/FloorAreaHeatedGarages | Open Energy Information

    Open Energy Info (EERE)

    Property Edit with form History Property:BuildingFloorAreaHeatedGarages Jump to: navigation, search This is a property of type Number. Floor area for Heated garages (> 10 C)...

  20. Property:Building/FloorAreaOffices | Open Energy Information

    Open Energy Info (EERE)

    Property Edit with form History Property:BuildingFloorAreaOffices Jump to: navigation, search This is a property of type Number. Floor area for Offices Pages using the property...

  1. Property:Building/FloorAreaRestaurants | Open Energy Information

    Open Energy Info (EERE)

    Property Edit with form History Property:BuildingFloorAreaRestaurants Jump to: navigation, search This is a property of type Number. Floor area for Restaurants Pages using the...

  2. Property:Building/FloorAreaShops | Open Energy Information

    Open Energy Info (EERE)

    Property Edit with form History Property:BuildingFloorAreaShops Jump to: navigation, search This is a property of type Number. Floor area for Shops Pages using the property...

  3. Property:Building/FloorAreaWarehouses | Open Energy Information

    Open Energy Info (EERE)

    Property Edit with form History Property:BuildingFloorAreaWarehouses Jump to: navigation, search This is a property of type Number. Floor area for Warehouses Pages using the...

  4. Property:Building/FloorAreaOtherRetail | Open Energy Information

    Open Energy Info (EERE)

    Property Edit with form History Property:BuildingFloorAreaOtherRetail Jump to: navigation, search This is a property of type Number. Floor area for Other retail Pages using the...

  5. Property:Building/FloorAreaTheatresConcertHallsCinemas | Open...

    Open Energy Info (EERE)

    Property Edit with form History Property:BuildingFloorAreaTheatresConcertHallsCinemas Jump to: navigation, search This is a property of type Number. Floor area for Theatres,...

  6. Property:Building/FloorAreaSportCenters | Open Energy Information

    Open Energy Info (EERE)

    This is a property of type Number. Floor area for Swimming baths, indoor and outdoor sports centres Pages using the property "BuildingFloorAreaSportCenters" Showing 2 pages...

  7. Property:Building/FloorAreaHealthServicesDaytime | Open Energy...

    Open Energy Info (EERE)

    Jump to: navigation, search This is a property of type Number. Floor area for Daytime health services Pages using the property "BuildingFloorAreaHealthServicesDaytime" Showing 4...

  8. Exterior Insulation Implications for Heating and Cooling Systems in Cold Climates

    SciTech Connect (OSTI)

    Herk, Anastasia; Poerschke, Andrew

    2015-04-09

    The New York State Energy Research and Development Authority (NYSERDA) is interested in finding cost-effective solutions for deep energy retrofits (DERs) related to exterior wall insulation in a cold climate, with targets of 50% peak load reduction and 50% space conditioning energy savings. The U.S. Department of Energy Building America team, IBACOS, in collaboration with GreenHomes America, Inc. (GHA), was contracted by NYSERDA to research exterior wall insulation solutions. In addition to exterior wall insulation, the strategies included energy upgrades where needed in the attic, mechanical and ventilation systems, basement, band joist, walls, and floors. Under Building America, IBACOS is studying the impact of a “thermal enclosure” DER on the sizing of the space conditioning system and the occupant comfort if the thermal capacity of the heating and cooling system is dramatically downsized without any change in the existing heating and cooling distribution system (e.g., size, tightness and supply outlet configurations).

  9. Exterior Insulation Implications for Heating and Cooling Systems in Cold Climates

    SciTech Connect (OSTI)

    Herk, Anastasia; Poerschke, Andrew

    2015-04-01

    The New York State Energy Research and Development Authority (NYSERDA) is interested in finding cost-effective solutions for deep energy retrofits (DERs) related to exterior wall insulation in a cold climate, with targets of 50% peak load reduction and 50% space conditioning energy savings. The U.S. Department of Energy Building America team, IBACOS, in collaboration with GreenHomes America, Inc. (GHA), was contracted by NYSERDA to research exterior wall insulation solutions. In addition to exterior wall insulation, the strategies included energy upgrades where needed in the attic, mechanical and ventilation systems, basement, band joist, walls, and floors. Under Building America, IBACOS is studying the impact of a “thermal enclosure” DER on the sizing of the space conditioning system and the occupant comfort if the thermal capacity of the heating and cooling system is dramatically downsized without any change in the existing heating and cooling distribution system (e.g., size, tightness and supply outlet configurations).

  10. Ocean floor mounting of wave energy converters

    DOE Patents [OSTI]

    Siegel, Stefan G

    2015-01-20

    A system for mounting a set of wave energy converters in the ocean includes a pole attached to a floor of an ocean and a slider mounted on the pole in a manner that permits the slider to move vertically along the pole and rotate about the pole. The wave energy converters can then be mounted on the slider to allow adjustment of the depth and orientation of the wave energy converters.

  11. Technology Solutions Case Study: Stand-Off Furring in Deep Energy Retrofits

    SciTech Connect (OSTI)

    2014-05-01

    IBACOS, in collaboration with GreenHomes America, was contracted by the New York State Energy Research and Development Authority to research exterior wall insulation solutions. This research investigated cost-effective deep energy retrofit (DER) solutions for improving the building shell exterior while achieving a cost-reduction goal, including reduced labor costs to reach a 50/50 split between material and labor. The strategies included exterior wall insulation plus energy upgrades as needed in the attic, mechanical and ventilation systems, and basement band joist, walls, and floors. The work can be integrated with other home improvements such as siding or window replacement. This strategy minimizes physical connections to existing wall studs, encapsulates existing siding materials (including lead paint) with spray foam, and creates a vented rain screen assembly to promote drying. GreenHomes America applied construction details created by IBACOS to a test home. 2x4 framing members were attached to the wall at band joists and top plates using "L" clips, with spray foam insulating the wall after framing was installed. Windows were installed simultaneously with the framing, including extension jambs. The use of clips in specific areas provided the best strength potential, and "picture framing" the spray foam held the 2x4s in place. Short-term testing was performed at this house, with monitoring equipment installed for long-term testing.

  12. Buildings Energy Data Book: 1.6 Embodied Energy of Building Assemblies

    Buildings Energy Data Book [EERE]

    7 Embodied Energy of Floor Structures in the U.S. Floor Structure with Interior Ceiling Finish of Gypsum Board, Latex Paint Embodied Energy CO2 Equivalent (MMBtu/SF) (1) Emissions (lbs/SF) Glulam joist and plank decking 0.04 3.06 Precast Hollowcore 0.05 13.43 Wood I-joist 0.02 2.03 Open-web Steel Joist 0.06 7.94 Open-web Steel Joist with concrete topping 0.07 12.30 Precast Double-T 0.04 11.38 Precast Double-T with concrete topping 0.06 16.45 Steel Joist 0.06 8.82 Steel Joist with plywood decking

  13. Savings Project: Insulate and Air Seal Floors Over Unconditioned Garages |

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

    Department of Energy and Air Seal Floors Over Unconditioned Garages Savings Project: Insulate and Air Seal Floors Over Unconditioned Garages Addthis Project Level Easy Energy Savings Depend on energy cost, R-value increase, and airtightness of newly insulated floor compared to existing. Time to Complete 4-8 hours Overall Cost $0.60 to $1.00 PER SQUARE FOOT FOR R-30 BATTS Careful air sealing and insulation between an unconditioned garage and the conditioned space above can increase comfort,

  14. Full-scale shear tests of embedded floor modules

    SciTech Connect (OSTI)

    Fricke, K.E.; Jones, W.D.; Burdette, E.G.

    1984-01-01

    A floor module used to support a centrifuge machine is a steel framework embedded in a 2-ft (610-mm) thick concrete slab. This steel framework is made up of four cylindrical hollow sockets tied together with four S-beams to form a square pattern. In the event of a centrifuge machine wreck, large forces are transmitted from the machine to the corner sockets (through connecting steel lugs) and to the concrete slab. The floor modules are loaded with a combination of torsion and shear forces in the plane of the floor slab. Precisely how these wreck loads are transmitted to, and reacted by, the floor modules and the surrounding concrete was the scope of a series of full-scale tests performed at the DOE Gas Centrifuge Enrichment Plant (GCEP) located near Piketon, Ohio. This report describes the tests and the results of the data reduction to date.

  15. Repairing Walls & Floors: How To's for the Handy Homeowner

    SciTech Connect (OSTI)

    2006-01-09

    This brochure provides handy homeowners with tips on how to properly repair walls and floors in their homes that sustained damage during a hurricane. This publications is a part of the How To's for the Handy Homeowner Series.

  16. Property:Building/FloorAreaMiscellaneous | Open Energy Information

    Open Energy Info (EERE)

    the property "BuildingFloorAreaMiscellaneous" Showing 25 pages using this property. S Sweden Building 05K0002 + 360 + Sweden Building 05K0005 + 110 + Sweden Building 05K0013 +...

  17. Floor-supply displacement air-conditioning: Laboratory experiments

    SciTech Connect (OSTI)

    Akimoto, Takashi; Nobe, Tatsuo; Tanabe, Shinichi; Kimura, Kenichi

    1999-07-01

    The results of laboratory measurements on the performance of a floor-supply displacement air-conditioning system in comparison to a displacement ventilation system with a side-wall-mounted diffuser and a ceiling-based distribution system are described. Thermal stratification was observed, as there were greater vertical air temperature differences in both of the displacement systems than in the ceiling-based system. The floor-supply displacement air-conditioning system produced a uniformly low air velocity at each measurement height, while a rather high air velocity near the floor was observed for the displacement ventilation system with a sidewall-mounted diffuser. Local mean age of air of the floor-supply displacement air-conditioning system was lower than that of the other systems, especially in the lower part of the room. According to the simulation results, the floor-supply displacement air-conditioning system with outdoor air cooling requires 34% less energy than the conventional air-conditioning system with outdoor air cooling.

  18. Strategy Guideline: Quality Management in Existing Homes - Cantilever Floor Example

    SciTech Connect (OSTI)

    Taggart, J.; Sikora, J.; Wiehagen, J.; Wood, A.

    2011-12-01

    This guideline is designed to highlight the QA process that can be applied to any residential building retrofit activity. The cantilevered floor retrofit detailed in this guideline is included only to provide an actual retrofit example to better illustrate the QA activities being presented.

  19. Property:Building/FloorAreaSchoolsChildDayCare | Open Energy...

    Open Energy Info (EERE)

    Property Edit with form History Property:BuildingFloorAreaSchoolsChildDayCare Jump to: navigation, search This is a property of type Number. Floor area for Schools, including...

  20. Waste Assessment Baseline for the IPOC Second Floor, West Wing

    SciTech Connect (OSTI)

    McCord, Samuel A

    2015-04-01

    Following a building-wide waste assessment in September, 2014, and subsequent presentation to Sandia leadership regarding the goal of Zero Waste by 2025, the occupants of the IPOC Second Floor, West Wing contacted the Materials Sustainability and Pollution Prevention (MSP2) team to guide them to Zero Waste in advance of the rest of the site. The occupants are from Center 3600, Public Relations and Communications , and Center 800, Independent Audit, Ethics and Business Conduct . To accomplish this, MSP2 conducted a new limited waste assessment from March 2-6, 2015 to compare the second floor, west wing to the building as a whole. The assessment also serves as a baseline with which to mark improvements in diversion in approximately 6 months.

  1. PHASE CHANGE MATERIALS IN FLOOR TILES FOR THERMAL ENERGY STORAGE

    SciTech Connect (OSTI)

    Douglas C. Hittle

    2002-10-01

    Passive solar systems integrated into residential structures significantly reduce heating energy consumption. Taking advantage of latent heat storage has further increased energy savings. This is accomplished by the incorporation of phase change materials into building materials used in passive applications. Trombe walls, ceilings and floors can all be enhanced with phase change materials. Increasing the thermal storage of floor tile by the addition of encapsulated paraffin wax is the proposed topic of research. Latent heat storage of a phase change material (PCM) is obtained during a change in phase. Typical materials use the latent heat released when the material changes from a liquid to a solid. Paraffin wax and salt hydrates are examples of such materials. Other PCMs that have been recently investigated undergo a phase transition from one solid form to another. During this process they will release heat. These are known as solid-state phase change materials. All have large latent heats, which makes them ideal for passive solar applications. Easy incorporation into various building materials is must for these materials. This proposal will address the advantages and disadvantages of using these materials in floor tile. Prototype tile will be made from a mixture of quartz, binder and phase change material. The thermal and structural properties of the prototype tiles will be tested fully. It is expected that with the addition of the phase change material the structural properties will be compromised to some extent. The ratio of phase change material in the tile will have to be varied to determine the best mixture to provide significant thermal storage, while maintaining structural properties that meet the industry standards for floor tile.

  2. Stand-Off Furring in Deep Energy Retrofits, Syracuse, New York (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-05-01

    IBACOS, in collaboration with GreenHomes America, was contracted by the New York State Energy Research and Development Authority to research exterior wall insulation solutions. This research investigated cost-effective deep energy retrofit (DER) solutions for improving the building shell exterior while achieving a cost-reduction goal, including reduced labor costs to reach a 50/50 split between material and labor. The strategies included exterior wall insulation plus energy upgrades as needed in the attic, mechanical and ventilation systems, and basement band joist, walls, and floors. The work can be integrated with other home improvements such as siding or window replacement. This strategy minimizes physical connections to existing wall studs, encapsulates existing siding materials (including lead paint) with spray foam, and creates a vented rain screen assembly to promote drying. GreenHomes America applied construction details created by IBACOS to a test home. 2x4 framing members were attached to the wall at band joists and top plates using 'L' clips, with spray foam insulating the wall after framing was installed. Windows were installed simultaneously with the framing, including extension jambs. The use of clips in specific areas provided the best strength potential, and 'picture framing' the spray foam held the 2x4s in place. Short-term testing was performed at this house, with monitoring equipment installed for long-term testing. Testing measurements will be provided in a later report, as well as utility impact (before and after), costs (labor and materials), construction time, standard specifications, and analysis for the exterior wall insulation strategy.

  3. Spray Foam Exterior Insulation with Stand-Off Furring

    SciTech Connect (OSTI)

    Herk, Anatasia; Baker, Richard; Prahl, Duncan

    2014-03-01

    IBACOS, in collaboration with GreenHomes America, was contracted by the New York State Energy Research and Development Authority to research exterior wall insulation solutions. This research investigated cost-effective deep energy retrofit (DER) solutions for improving the building shell exterior while achieving a cost-reduction goal, including reduced labor costs to reach a 50/50 split between material and labor. The strategies included exterior wall insulation plus energy upgrades as needed in the attic, mechanical and ventilation systems, and basement band joist, walls, and floors. The work can be integrated with other home improvements such as siding or window replacement. This strategy minimizes physical connections to existing wall studs, encapsulates existing siding materials (including lead paint) with spray foam, and creates a vented rain screen assembly to promote drying. GreenHomes America applied construction details created by IBACOS to a test home. 2x4 framing members were attached to the wall at band joists and top plates using "L" clips, with spray foam insulating the wall after framing was installed. Windows were installed simultaneously with the framing, including extension jambs. The use of clips in specific areas provided the best strength potential, and "picture framing" the spray foam held the 2x4s in place. Short-term testing was performed at this house, with monitoring equipment installed for long-term testing. Testing measurements will be provided in a later report, as well as utility impact (before and after), costs (labor and materials), construction time, standard specifications, and analysis for the exterior wall insulation strategy.

  4. Spray Foam Exterior Insulation with Stand-Off Furring

    SciTech Connect (OSTI)

    Herk, A.; Baker, R.; Prahl, D.

    2014-03-01

    IBACOS, in collaboration with GreenHomes America, was contracted by the New York State Energy Research and Development Authority to research exterior wall insulation solutions. This research investigated cost-effective deep energy retrofit (DER) solutions for improving the building shell exterior while achieving a cost-reduction goal, including reduced labor costs to reach a 50/50 split between material and labor. The strategies included exterior wall insulation plus energy upgrades as needed in the attic, mechanical and ventilation systems, and basement band joist, walls, and floors. The work can be integrated with other home improvements such as siding or window replacement. This strategy minimizes physical connections to existing wall studs, encapsulates existing siding materials (including lead paint) with spray foam, and creates a vented rain screen assembly to promote drying. GreenHomes America applied construction details created by IBACOS to a test home. 2x4 framing members were attached to the wall at band joists and top plates using 'L' clips, with spray foam insulating the wall after framing was installed. Windows were installed simultaneously with the framing, including extension jambs. The use of clips in specific areas provided the best strength potential, and 'picture framing' the spray foam held the 2x4s in place. Short-term testing was performed at this house, with monitoring equipment installed for long-term testing. Testing measurements will be provided in a later report, as well as utility impact (before and after), costs (labor and materials), construction time, standard specifications, and analysis for the exterior wall insulation strategy.

  5. Tips: Insulation | Department of Energy

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

    blown into walls, on attic surfaces, or under floors to insulate and reduce air leakage. ... Consequently, the levels may differ from current local building codes. How Much Insulation ...

  6. Puget Sound Energy - Residential Energy Efficiency Rebate Programs...

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

    System: 250 Clothes Washers: 50 Refrigerator: 50 Freezers: 25 Refrigerator Recycling: 25 CFLs: Up to 4 LED Bulbs: 8 LED Fixtures: 15 FloorAtticWall Insulation: 50%...

  7. Building America Whole-House Solutions for New Homes: Green Coast...

    Energy Savers [EERE]

    foundations, with borate pressure-treated lumber, wind-resistant OSB sheathing, hurricane strapping, roofing membrane, and closed-cell spray foam in attic, walls, and under floor. ...

  8. Where to Insulate in a Home | Department of Energy

    Office of Environmental Management (EM)

    to improve your home's energy efficiency. Insulate either the attic floor or under the roof. Check with a contractor about crawl space or basement insulation. Tips: Insulation...

  9. 120 years of U.S. residential housing stock and floor space

    SciTech Connect (OSTI)

    Moura, Maria Cecilia P.; Smith, Steven J.; Belzer, David B.; Zhou, Wei -Xing

    2015-08-11

    Residential buildings are a key driver of energy consumption and also impact transportation and land-use. Energy consumption in the residential sector accounts for one-fifth of total U.S. energy consumption and energy-related CO₂ emissions, with floor space a major driver of building energy demands. In this work a consistent, vintage-disaggregated, annual long-term series of U.S. housing stock and residential floor space for 1891–2010 is presented. An attempt was made to minimize the effects of the incompleteness and inconsistencies present in the national housing survey data. Over the 1891–2010 period, floor space increased almost tenfold, from approximately 24,700 to 235,150 million square feet, corresponding to a doubling of floor space per capita from approximately 400 to 800 square feet. While population increased five times over the period, a 50% decrease in household size contributed towards a tenfold increase in the number of housing units and floor space, while average floor space per unit remains surprisingly constant, as a result of housing retirement dynamics. In the last 30 years, however, these trends appear to be changing, as household size shows signs of leveling off, or even increasing again, while average floor space per unit has been increasing. GDP and total floor space show a remarkably constant growth trend over the period and total residential sector primary energy consumption and floor space show a similar growth trend over the last 60 years, decoupling only within the last decade.

  10. Statistical Analysis of Tank 5 Floor Sample Results

    SciTech Connect (OSTI)

    Shine, E. P.

    2013-01-31

    Sampling has been completed for the characterization of the residual material on the floor of Tank 5 in the F-Area Tank Farm at the Savannah River Site (SRS), near Aiken, SC. The sampling was performed by Savannah River Remediation (SRR) LLC using a stratified random sampling plan with volume-proportional compositing. The plan consisted of partitioning the residual material on the floor of Tank 5 into three non-overlapping strata: two strata enclosed accumulations, and a third stratum consisted of a thin layer of material outside the regions of the two accumulations. Each of three composite samples was constructed from five primary sample locations of residual material on the floor of Tank 5. Three of the primary samples were obtained from the stratum containing the thin layer of material, and one primary sample was obtained from each of the two strata containing an accumulation. This report documents the statistical analyses of the analytical results for the composite samples. The objective of the analysis is to determine the mean concentrations and upper 95% confidence (UCL95) bounds for the mean concentrations for a set of analytes in the tank residuals. The statistical procedures employed in the analyses were consistent with the Environmental Protection Agency (EPA) technical guidance by Singh and others [2010]. Savannah River National Laboratory (SRNL) measured the sample bulk density, nonvolatile beta, gross alpha, and the radionuclide1, elemental, and chemical concentrations three times for each of the composite samples. The analyte concentration data were partitioned into three separate groups for further analysis: analytes with every measurement above their minimum detectable concentrations (MDCs), analytes with no measurements above their MDCs, and analytes with a mixture of some measurement results above and below their MDCs. The means, standard deviations, and UCL95s were computed for the analytes in the two groups that had at least some measurements

  11. Experimental study on the floor-supply displacement ventilation system

    SciTech Connect (OSTI)

    Akimoto, Takashi; Nobe, Tatsuo; Takebayashi, Yoshihisa

    1995-12-31

    These results are presented from a research project to investigate the effects of a floor-supply displacement ventilation system with practical indoor heat loads. The experiments were performed in an experimental chamber (35.2 m{sup 2}) located in a controlled environment chamber. Temperature distributions were measured at seven heights throughout the experimental chamber for each test condition. Data were analyzed to observe thermal stratification as affected by lighting, occupants, and heat loads (personal computers), and its disruption caused by walking and change of air volume. In addition, airflow characteristics and ventilation efficiencies were investigated using a smoke machine, tobacco smoke, dust for industrial testing, and a tracer gas (CO{sub 2}) step-up procedure.

  12. Strategy Guideline: Quality Management in Existing Homes; Cantilever Floor Example

    SciTech Connect (OSTI)

    Taggart, J.; Sikora, J.; Wiehagen, J.; Wood, A.

    2011-12-01

    This guideline is designed to highlight the QA process that can be applied to any residential building retrofit activity. The cantilevered floor retrofit detailed in this guideline is included only to provide an actual retrofit example to better illustrate the QA activities being presented. The goal of existing home high performing remodeling quality management systems (HPR-QMS) is to establish practices and processes that can be used throughout any remodeling project. The research presented in this document provides a comparison of a selected retrofit activity as typically done versus that same retrofit activity approached from an integrated high performance remodeling and quality management perspective. It highlights some key quality management tools and approaches that can be adopted incrementally by a high performance remodeler for this or any high performance retrofit. This example is intended as a template and establishes a methodology that can be used to develop a portfolio of high performance remodeling strategies.

  13. 120 Years of U.S. Residential Housing Stock and Floor Space

    SciTech Connect (OSTI)

    Pinto de Moura, Maria C.; Smith, Steven J.; Belzer, David B.

    2015-08-11

    Energy consumption in the residential sector accounts for one-fifth of total U.S. energy consumption and energy-related CO2 emissions. Floor space is a major driver of building energy demand. This paper develops a historical time series of total residential floor space for 1891-2010 and examines the role of socio-economic drivers GDP, population and household size on floor space. Using primarily data from the U.S. Census Bureau, we develop new construction and vintage-disaggregated housing stock for three building types, and address various data inconsistency issues. An examination of the long-term relationship of GDP and total residential floor space shows a remarkably constant trend over the period. While population increases five times over the period, a 50% decrease in household size contributes towards a tenfold increase in the number of housing units and floor space, while average floor space per unit remains surprisingly constant, as a result of housing retirement dynamics. In the last 30 years, however, these trends appear to be changing, as household size shows signs of leveling off, or even increasing again, while average floor space per unit has been increasing. Total residential sector primary energy consumption and floor space show a similar growth trend over the last 60 years.

  14. Nexus EnergyHomes, Frederick, Maryland (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-02-01

    With this new home - which achieved the highest rating possible under the National Green Building Standard - Nexus EnergyHomes demonstrated that green and affordable can go hand in hand. The mixed-humid climate builder, along with the U.S. Department of Energy Building America team Partnership for Home Innovation, embraced the challenge to create a new duplex home in downtown Frederick, Maryland, that successfully combines affordability with state-of-the-art efficiency and indoor environmental quality. To limit costs, the builder designed a simple rectangular shape and kept interesting architectural features such as porches outside the building's structure. This strategy avoided the common pitfall of creating potential air leakage where architectural features are connected to the structure before the building is sealed against air infiltration. To speed construction and limit costs, the company chose factory-assembled components such as structural insulated panel walls and floor and roof trusses. Factory-built elements were key in achieving continuous insulation around the entire structure. Open-cell spray foam at the rim joist and attic roofline completed the insulation package, and kept the heating, ventilating, and air-conditioning system in conditioned space.

  15. New Whole-House Solutions Case Study: Nexus EnergyHomes, Frederick, Maryland

    SciTech Connect (OSTI)

    2014-02-01

    With this new home—which achieved the highest rating possible under the National Green Building Standard—Nexus EnergyHomes demonstrated that green and affordable can go hand in hand. The mixed-humid climate builder, along with the U.S. Department of Energy Building America team Partnership for Home Innovation, embraced the challenge to create a new duplex home in downtown Frederick, Maryland, that successfully combines affordability with state-of-the-art efficiency and indoor environmental quality. To limit costs, the builder designed a simple rectangular shape and kept interesting architectural features such as porches outside the building’s structure. This strategy avoided the common pitfall of creating potential air leakage where architectural features are connected to the structure before the building is sealed against air infiltration. To speed construction and limit costs, the company chose factory-assembled components such as structural insulated panel walls and floor and roof trusses. Factory-built elements were key in achieving continuous insulation around the entire structure. Open-cell spray foam at the rim joist and attic roofline completed the insulation package, and kept the heating, ventilating, and air-conditioning system in conditioned space.

  16. Classification and storage of wastewater from floor finish removal operations

    SciTech Connect (OSTI)

    Hunt, C.E.

    1996-05-01

    This study evaluates the wastewater generated from hard surface floor finish removal operations at Lawrence Livermore Laboratory in order to determine if this wastewater is a hazardous waste, either by statistical evaluation, or other measurable regulatory guidelines established in California Regulations. This research also comparatively evaluates the 55 gallon drum and other portable tanks, all less than 1,000 gallons in size in order to determine which is most effective for the management of this waste stream at Lawrence Livermore Laboratory. The statistical methods in SW-846 were found to be scientifically questionable in their application to hazardous waste determination. In this statistical evaluation, the different data transformations discussed in the regulatory guidance document were applied along with the log transformation to the population of 18 samples from 55 gallon drums. Although this statistical evaluation proved awkward in its application, once the data is collected and organized on a spreadsheet this statistical analysis can be an effective tool which can aid the environmental manager in the hazardous waste classification process.

  17. 120 years of U.S. residential housing stock and floor space

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

    Moura, Maria Cecilia P.; Smith, Steven J.; Belzer, David B.; Zhou, Wei -Xing

    2015-08-11

    Residential buildings are a key driver of energy consumption and also impact transportation and land-use. Energy consumption in the residential sector accounts for one-fifth of total U.S. energy consumption and energy-related CO₂ emissions, with floor space a major driver of building energy demands. In this work a consistent, vintage-disaggregated, annual long-term series of U.S. housing stock and residential floor space for 1891–2010 is presented. An attempt was made to minimize the effects of the incompleteness and inconsistencies present in the national housing survey data. Over the 1891–2010 period, floor space increased almost tenfold, from approximately 24,700 to 235,150 million squaremore » feet, corresponding to a doubling of floor space per capita from approximately 400 to 800 square feet. While population increased five times over the period, a 50% decrease in household size contributed towards a tenfold increase in the number of housing units and floor space, while average floor space per unit remains surprisingly constant, as a result of housing retirement dynamics. In the last 30 years, however, these trends appear to be changing, as household size shows signs of leveling off, or even increasing again, while average floor space per unit has been increasing. GDP and total floor space show a remarkably constant growth trend over the period and total residential sector primary energy consumption and floor space show a similar growth trend over the last 60 years, decoupling only within the last decade.« less

  18. DOE ZERH Case Study: Charles Thomas Homes, Anna Model, Omaha, NE

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning custom home in the cold climate that got a HERS 48 without PV, with 2x6 24” on center walls with R-23 blown fiberglass, ocsf at rim joists, basement with plus 2x4 stud walls with R-23 blown fiberglass, with R-20 around slab, R-38 under slab; a vented attic with R-100 blown cellulose; 95% AFUE furnace, 14 SEER AC, ERV; heat pump water heater.

  19. Property:Building/FloorAreaHealthServices24hr | Open Energy Informatio...

    Open Energy Info (EERE)

    Jump to: navigation, search This is a property of type Number. Floor area for 24-hour health services Retrieved from "http:en.openei.orgwindex.php?titleProperty:Building...

  20. Next Generation Attics and Roof Systems

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

    ... of Buildings, XII, proceedings of ASHRAE THERM X, Clearwater, FL., Dec. 2013. Olsen, R., Miller, W. and Graves, R. 2013. "The Equivalent Thermal Resistance of Tile Roofs ...

  1. Dark matter vs. neutrinos: the effect of astrophysical uncertainties and timing information on the neutrino floor

    SciTech Connect (OSTI)

    Davis, Jonathan H.

    2015-03-09

    Future multi-tonne Direct Detection experiments will be sensitive to solar neutrino induced nuclear recoils which form an irreducible background to light Dark Matter searches. Indeed for masses around 6 GeV the spectra of neutrinos and Dark Matter are so similar that experiments are said to run into a neutrino floor, for which sensitivity increases only marginally with exposure past a certain cross section. In this work we show that this floor can be overcome using the different annual modulation expected from solar neutrinos and Dark Matter. Specifically for cross sections below the neutrino floor the DM signal is observable through a phase shift and a smaller amplitude for the time-dependent event rate. This allows the exclusion power to be improved by up to an order of magnitude for large exposures. In addition we demonstrate that, using only spectral information, the neutrino floor exists over a wider mass range than has been previously shown, since the large uncertainties in the Dark Matter velocity distribution make the signal spectrum harder to distinguish from the neutrino background. However for most velocity distributions it can still be surpassed using timing information, and so the neutrino floor is not an absolute limit on the sensitivity of Direct Detection experiments.

  2. Testing the Floor Scale Designated for Pacific Northwest National Laboratory's UF6 Cylinder Portal Monitor

    SciTech Connect (OSTI)

    Curtis, Michael M.; Weier, Dennis R.

    2009-03-12

    Pacific Northwest National Laboratory (PNNL) obtained a Mettler Toledo floor scale for the purpose of testing it to determine whether it can replace the International Atomic Energy Agency’s (IAEA) cumbersome, hanging load cell. The floor scale is intended for use as a subsystem within PNNL’s nascent UF6 Cylinder Portal Monitor. The particular model was selected for its accuracy, size, and capacity. The intent will be to use it only for 30B cylinders; consequently, testing did not proceed beyond 8,000 lb.

  3. Three-dimensional modeling of heat transfer from slab floors. Final report

    SciTech Connect (OSTI)

    Bahnfleth, W.P.

    1989-07-01

    Earth-coupled heat-transfer processes have been recognized in recent years as a potential source of significant energy savings in both conventional and earth-sheltered designs, Because of the complexity of the building/soil/atmosphere interaction, however, important aspects of earth-coupled heat transfer are not well understood. There is a particular lack of three-dimensional foundation heat-loss data. In this study, a detailed three-dimensional finite-difference model of a slab floor was used to generate 93 annual simulations in parametric groups focusing on effects of size and shape, soil properties, boundary conditions, climate, insulation, and building shadow. These results indicate that soil thermal conductivity, ground surface conditions, foundation design, and floor shape/size are essential elements of a general change in heat-transfer rate.

  4. Cleaning of the ocean floor near offshore platforms in the Gulf coast

    SciTech Connect (OSTI)

    Fang, C.S.; Smith, S.A. Jr.

    1986-03-01

    For decades in offshore drilling, the drill cuttings were separated from the circulating drilling fluid by the shale shaker and hydrocyclone, and discharged to the ocean. The drilling fluid itself was discharged to the ocean intermittently to maintain its required properties during the drilling process. These discharges contain many environmentally undesirable chemicals, such as hydrocarbons chemical additives and heavy metals. As a result, the ocean floor near some of the offshore platforms in the Gulf of Mexico are covered by contaminated sediment. Ocean current is not as effective in washing out the discarded ocean muds as previously believed. An attempt was made to clean some of the offshore platforms in the Gulf of Mexico. The quantity and characteristics of the drilling discharges are estimated the technology used to clean the ocean floor near platforms is described, and advanced treatments for hydrocarbon removal, chemical oxidation and activated carbon adsorption, are discussed. 8 references.

  5. Two-dimensional model of direct solar slab-on-grade heating floor

    SciTech Connect (OSTI)

    Youcef, L. )

    1991-01-01

    The altering direction implicit (ADI) method is used to solve the two-dimensional heat equation applied to the system described in this paper. The coupling equations between flat-plate collectors, heating floor and ground had been developed. The model also takes into account the solar flux falling on the floor through the south oriented glazed wall. The theoretical results were compared to the experimental data performed in Bassens (southwest of France) during the period of September 1981 to May 1982. It was shown that the model outputs were in good agreement with the measured data. However, some doubts are considered concerning lower boundary conditions. Also is given a simple technique to evaluate the most appropriate initial conditions to drive the computational program developed here. Finally a study of some main parameters was carried out.

  6. Investigating Solutions to Wind Washing Issues in Two-Story Florida Homes, Phase 2

    SciTech Connect (OSTI)

    Withers, C.; Kono, J.

    2015-04-01

    This report provides results from a second-phase research study of a phenomenon generally referred to as wind washing. Wind washing is the movement of unconditioned air around or through building thermal barriers in such a way as to diminish or nullify the intended thermal performance. In some cases, thermal and air barriers are installed very poorly or not at all, and air can readily move from unconditioned attic spaces into quasi-conditioned interstitial spaces. This study focused on the impact of poorly sealed and insulated floor cavities adjacent to attic spaces in Florida homes. In these cases, unconditioned attic air can be transferred into floor cavities through pathways driven by natural factors such as wind, or by thermal differences between the floor cavity and the attic. Air can also be driven into a floor cavity through mechanical forces imposed by return duct leakage in the floor cavity.

  7. Forest floor community metatranscriptomes identify fungal and bacterial responses to N deposition in two maple forests

    SciTech Connect (OSTI)

    Hesse, Cedar N.; Mueller, Rebecca C.; Vuyisich, Momchilo; Gallegos-Graves, La Verne; Gleasner, Cheryl D.; Zak, Donald R.; Kuske, Cheryl R.

    2015-04-23

    Anthropogenic N deposition alters patterns of C and N cycling in temperate forests, where forest floor litter decomposition is a key process mediated by a diverse community of bacteria and fungi. To track forest floor decomposer activity we generated metatranscriptomes that simultaneously surveyed the actively expressed bacterial and eukaryote genes in the forest floor, to compare the impact of N deposition on the decomposers in two natural maple forests in Michigan, USA, where replicate field plots had been amended with N for 16 years. Site and N amendment responses were compared using about 74,000 carbohydrate active enzyme transcript sequences (CAZymes) in each metatranscriptome. Parallel ribosomal RNA (rRNA) surveys of bacterial and fungal biomass and taxonomic composition showed no significant differences in either biomass or OTU richness between the two sites or in response to N. Site and N amendment were not significant variables defining bacterial taxonomic composition, but they were significant for fungal community composition, explaining 17 and 14% of the variability, respectively. The relative abundance of expressed bacterial and fungal CAZymes changed significantly with N amendment in one of the forests, and N-response trends were also identified in the second forest. Although the two ambient forests were similar in community biomass, taxonomic structure and active CAZyme profile, the shifts in active CAZyme profiles in response to N-amendment differed between the sites. One site responded with an over-expression of bacterial CAZymes, and the other site responded with an over-expression of both fungal and different bacterial CAZymes. Both sites showed reduced representation of fungal lignocellulose degrading enzymes in N-amendment plots. The metatranscriptome approach provided a holistic assessment of eukaryote and bacterial gene expression and is applicable to other systems where eukaryotes and bacteria interact.

  8. Forest floor community metatranscriptomes identify fungal and bacterial responses to N deposition in two maple forests

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

    Hesse, Cedar N.; Mueller, Rebecca C.; Vuyisich, Momchilo; Gallegos-Graves, La Verne; Gleasner, Cheryl D.; Zak, Donald R.; Kuske, Cheryl R.

    2015-04-23

    Anthropogenic N deposition alters patterns of C and N cycling in temperate forests, where forest floor litter decomposition is a key process mediated by a diverse community of bacteria and fungi. To track forest floor decomposer activity we generated metatranscriptomes that simultaneously surveyed the actively expressed bacterial and eukaryote genes in the forest floor, to compare the impact of N deposition on the decomposers in two natural maple forests in Michigan, USA, where replicate field plots had been amended with N for 16 years. Site and N amendment responses were compared using about 74,000 carbohydrate active enzyme transcript sequences (CAZymes)more » in each metatranscriptome. Parallel ribosomal RNA (rRNA) surveys of bacterial and fungal biomass and taxonomic composition showed no significant differences in either biomass or OTU richness between the two sites or in response to N. Site and N amendment were not significant variables defining bacterial taxonomic composition, but they were significant for fungal community composition, explaining 17 and 14% of the variability, respectively. The relative abundance of expressed bacterial and fungal CAZymes changed significantly with N amendment in one of the forests, and N-response trends were also identified in the second forest. Although the two ambient forests were similar in community biomass, taxonomic structure and active CAZyme profile, the shifts in active CAZyme profiles in response to N-amendment differed between the sites. One site responded with an over-expression of bacterial CAZymes, and the other site responded with an over-expression of both fungal and different bacterial CAZymes. Both sites showed reduced representation of fungal lignocellulose degrading enzymes in N-amendment plots. The metatranscriptome approach provided a holistic assessment of eukaryote and bacterial gene expression and is applicable to other systems where eukaryotes and bacteria interact.« less

  9. Method and apparatus for recovering a gas from a gas hydrate located on the ocean floor

    DOE Patents [OSTI]

    Wyatt, Douglas E.

    2001-01-01

    A method and apparatus for recovering a gas from a gas hydrate on the ocean floor includes a flexible cover, a plurality of steerable base members secured to the cover, and a steerable mining module. A suitable source for inflating the cover over the gas hydrate deposit is provided. The mining module, positioned on the gas hydrate deposit, is preferably connected to the cover by a control cable. A gas retrieval conduit or hose extends upwardly from the cover to be connected to a support ship on the ocean surface.

  10. Technology Solutions Case Study: Complete and Fully Aligned Air Barrier

    SciTech Connect (OSTI)

    none,

    2012-08-01

    This research project, conducted by Pacific Northwest National Laboratory, focused on eliminating excessive humidity in the attic of a multi-floor, single-family home that was causing condensation and water damage along the roof and eaves.

  11. New Whole-House Solutions Case Study: Devoted Builders, LLC

    SciTech Connect (OSTI)

    none,

    2013-02-01

    Devoted Builders meets 2012 IECC insulation requirements in the cold climate with R-25 ICF walls, R-25 slab insulation and R-49 spray foam and cellulose attic floors.

  12. Causes and solutions for cracking of coextruded and weld overlay floor tubes in black liquor recovery boilers

    SciTech Connect (OSTI)

    Keiser, J.R.; Taljat, B.; Wang, X.L.

    1998-09-01

    Cracking of coextruded, black liquor recovery boiler floor tubes is both a safety and an economic issue to mill operators. In an effort to determine the cause of the cracking and to identify a solution, extensive studies, described in this and three accompanying papers, are being conducted. In this paper, results of studies to characterize both the cracking and the chemical and thermal environment are reported. Based on the results described in this series of papers, a possible mechanism is presented and means to lessen the likelihood of cracking or to totally avoid cracking of floor tubes are offered.

  13. DOE Zero Energy Ready Home Case Study: Charles Thomas Homes, Anna Model,

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

    Omaha, NE | Department of Energy Charles Thomas Homes, Anna Model, Omaha, NE DOE Zero Energy Ready Home Case Study: Charles Thomas Homes, Anna Model, Omaha, NE Case study of a DOE 2015 Housing Innovation Award winning custom home in the cold climate that got a HERS 48 without PV, with 2x6 24" on center walls with R-23 blown fiberglass, ocsf at rim joists, basement with plus 2x4 stud walls with R-23 blown fiberglass, with R-20 around slab, R-38 under slab; a vented attic with R-100 blown

  14. SUPPORT OF GULF OF MEXICO HYDRATE RESEARCH CONSORTIUM: ACTIVITIES TO SUPPORT ESTABLISHMENT OF A SEA FLOOR MONITORING STATION PROJECT

    SciTech Connect (OSTI)

    Paul Higley; J. Robert Woolsey; Ralph Goodman; Vernon Asper; Boris Mizaikoff; Angela Davis

    2005-09-01

    A Consortium, designed to assemble leaders in gas hydrates research, has been established at the University of Mississippi's Center for Marine Resources and Environmental Technology, CMRET. The primary objective of the group is to design and emplace a remote monitoring station on the sea floor in the northern Gulf of Mexico by the year 2005, in an area where gas hydrates are known to be present at, or just below, the sea floor. This mission necessitates assembling a station that will monitor physical and chemical parameters of the sea water and sea floor sediments on a more-or-less continuous basis over an extended period of time. Development of the station allows for the possibility of expanding its capabilities to include biological monitoring, as a means of assessing environmental health. Establishment of the Consortium has succeeded in fulfilling the critical need to coordinate activities, avoid redundancies and communicate effectively among researchers in this relatively new research arena. Complementary expertise, both scientific and technical, has been assembled to promote innovative research methods and construct necessary instrumentation. Noteworthy achievements six months into the extended life of this cooperative agreement include: (1) Progress on the vertical line array (VLA) of sensors: Analysis and repair attempts of the VLA used in the deep water deployment during October 2003 have been completed; Definition of an interface protocol for the VLA DATS to the SFO has been established; Design modifications to allow integration of the VLA to the SFO have been made; Experience gained in the deployments of the first VLA is being applied to the design of the next VLAs; One of the two planned new VLAs being modified to serve as an Oceanographic Line Array (OLA). (2) Progress on the Sea Floor Probe: The decision to replace the Sea Floor Probe technology with the borehole emplacement of a geophysical array was reversed due to the 1300m water depth at the JIP

  15. SUPPORT OF GULF OF MEXICO HYDRATE RESEARCH CONSORTIUM: ACTIVITIES TO SUPPORT ESTABLISHMENT OF A SEA FLOOR MONITORING STATION PROJECT

    SciTech Connect (OSTI)

    Paul Higley; J. Robert Woolsey; Ralph Goodman; Vernon Asper; Boris Mizaikoff; Angela Davis; Bob A. Hardage; Jeffrey Chanton; Rudy Rogers

    2006-03-01

    The Gulf of Mexico Hydrates Research Consortium was established in 1999 to assemble leaders in gas hydrates research. The group is administered by the Center for Marine Resources and Environmental Technology, CMRET, at the University of Mississippi. The primary objective of the group is to design and emplace a remote monitoring station or sea floor observatory on the sea floor in the northern Gulf of Mexico by the year 2005, in an area where gas hydrates are known to be present at, or just below, the sea floor. This mission necessitates assembling a station that will monitor physical and chemical parameters of the sea water and sea floor sediments on a more-or-less continuous basis over an extended period of time. Development of the station has always included the possibility of expanding its capabilities to include biological monitoring, as a means of assessing environmental health. This possibility has recently received increased attention and the group of researchers working on the station has expanded to include several microbial biologists. Establishment of the Consortium has succeeded in fulfilling the critical need to coordinate activities, avoid redundancies and communicate effectively among researchers in this relatively new research arena. Complementary expertise, both scientific and technical, has been assembled to promote innovative research methods and construct necessary instrumentation. Initial components of the observatory, a probe that collects pore-fluid samples and another that records sea floor temperatures, were deployed in Mississippi Canyon 118 in May of 2005. Follow-up deployments are planned for fall 2005 and center about the use of the vessel M/V Ocean Quest and its two manned submersibles. The subs will be used to effect bottom surveys, emplace sensors and sea floor experiments and make connections between sensor data loggers and the integrated data power unit (IDP). Station/observatory completion is anticipated for 2007 following the

  16. Effects of different SSI parameters on the floor response spectra of a nuclear Reactor Building

    SciTech Connect (OSTI)

    Kabir, A.F.; Maryak, M.E.; Malik, L.E.

    1991-12-31

    The effects of several critical soil-structure interaction (SSI) parameters on the floor response spectra (FRS) of a typical nuclear Reactor Building have been examined. These parameters are deconvolution effects (reductions in ground motion with depth), strain dependency of soil dynamic properties and calculation of impedance functions using different approaches. The significant conclusions of the study, which are applicable to a deeply embedded very rigid nuclear Reactor Building, are as follows: (1) FRS generated without considering scattering effects are highly conservative; (2) Differences between FRS, generated considering strain-dependency of soil dynamic properties, and those generated using low-strain values, are not significant; and (3) the lumped-parameter approach of SSI calculations, which only uses a single value of soil shear modulus in impedance calculations, may not be able to properly compute the soil impedances for a soil deposit with irregularly varying properties with depth. An SSI approach, which can explicitly consider these variations, needs to be used in FRS calculations in such cases.

  17. Effects of different SSI parameters on the floor response spectra of a nuclear Reactor Building

    SciTech Connect (OSTI)

    Kabir, A.F.; Maryak, M.E.; Malik, L.E.

    1991-01-01

    The effects of several critical soil-structure interaction (SSI) parameters on the floor response spectra (FRS) of a typical nuclear Reactor Building have been examined. These parameters are deconvolution effects (reductions in ground motion with depth), strain dependency of soil dynamic properties and calculation of impedance functions using different approaches. The significant conclusions of the study, which are applicable to a deeply embedded very rigid nuclear Reactor Building, are as follows: (1) FRS generated without considering scattering effects are highly conservative; (2) Differences between FRS, generated considering strain-dependency of soil dynamic properties, and those generated using low-strain values, are not significant; and (3) the lumped-parameter approach of SSI calculations, which only uses a single value of soil shear modulus in impedance calculations, may not be able to properly compute the soil impedances for a soil deposit with irregularly varying properties with depth. An SSI approach, which can explicitly consider these variations, needs to be used in FRS calculations in such cases.

  18. Inspection of the objects on the sea floor by using 14 MeV tagged neutrons

    SciTech Connect (OSTI)

    Valkovic, V.; Sudac, D.; Obhodas, J.; Matika, D.; Kollar, R.; Nad, K.; Orlic, Z.

    2011-07-01

    Variety of objects found on the sea floor needs to be inspected for the presence of materials which represent the threat to the environment and to the safety of humans. We have demonstrated that the sealed tube 14 MeV neutron generator with the detection of associated alpha particles can be used underwater when mounted inside ROV equipped with the hydraulic legs and variety of sensors for the inspection of such objects for the presence of threat materials. Such a system is performing the measurement by using the NaI gamma detector and an API-120 neutron generator which could be rotated in order to maximize the inspected target volume. The neutron beam intensity during the 10-30 min. measurements is usually 1 x 10{sup 7} n/s in 4{pi}. In this report the experimental results for some of commonly found objects containing TNT explosive or its simulant are presented. The measured gamma spectra are dominant by C, O and Fe peaks enabling the determination of the presence of explosives inside the ammunition shell. Parameters influencing the C/O ratio are discussed in some details. (authors)

  19. Nonlinear dynamic response of submarine pipelines in contact with the ocean floor

    SciTech Connect (OSTI)

    Chung, C.K.

    1986-01-01

    The nonlinear dynamic response of a submarine pipeline to wave and current excitation is investigated by the finite-element method. The pipeline, in contact with soft clay on the ocean floor, is modeled as a continuous beam. Small-deflection theory with geometric stiffening is employed. Pipeline tension, used in the geometric stiffness matrix, is calculated using pipeline stretch. The hydrodynamic forces are calculated using the modified Morison equation. The excitation involves a long-crested regular wave propagating perpendicular to the pipeline axis with or with out the current. The distributed drag and lift forces are converted into multisegment concentrated forces by means of the beam shape functions, and the inertia force is treated as a uniformly distributed force on each element. The soil-resistance forces due to lateral sliding on a plane surface are calculated using either an elasto-plastic or a hysteretic pipeline-soil interaction model. The Newmark Method is used to integrate the nonlinear equations of dynamic equilibrium using an iterative scheme within each time step. It is found from this study that the use of geometric stiffness is necessary for pipelines in a marine environment. The significant effect of geometric stiffening on pipeline responses for cases involving current is demonstrated.

  20. SUPPORT OF GULF OF MEXICO HYDRATE RESEARCH CONSORTIUM: ACTIVITIES TO SUPPORT ESTABLISHMENT OF A SEA FLOOR MONITORING STATION PROJECT

    SciTech Connect (OSTI)

    Paul Higley; J. Robert Woolsey; Ralph Goodman; Vernon Asper; Boris Mizaikoff; Angela Davis

    2004-03-01

    A Consortium, designed to assemble leaders in gas hydrates research, has been established at the University of Mississippi's Center for Marine Resources and Environmental Technology, CMRET. The primary objective of the group is to design and emplace a remote monitoring station on the sea floor in the northern Gulf of Mexico by the year 2005, in an area where gas hydrates are known to be present at, or just below, the sea floor. This mission necessitates assembling a station that will monitor physical and chemical parameters of the sea water and sea floor sediments on a more-or-less continuous basis over an extended period of time. Development of the station allows for the possibility of expanding its capabilities to include biological monitoring, as a means of assessing environmental health. Establishment of the Consortium has already succeeded in fulfilling the critical need to coordinate activities, avoid redundancies and communicate effectively among researchers in this relatively new research arena. Complementary expertise, both scientific and technical, has been assembled to innovate research methods and construct necessary instrumentation. As funding for this project, scheduled to commence December 1, 2002, had only been in place for less than half of the reporting period, project progress has been less than for other reporting periods. Nevertheless, significant progress has been made and several cruises are planned for the summer/fall of 2003 to test equipment, techniques and compatibility of systems. En route to reaching the primary goal of the Consortium, the establishment of a monitoring station on the sea floor, the following achievements have been made: (1) Progress on the vertical line array (VLA) of sensors: Software and hardware upgrades to the data logger for the prototype vertical line array, including enhanced programmable gains, increased sampling rates, improved surface communications, Cabling upgrade to allow installation of positioning sensors

  1. Support of Gulf of Mexico Hydrate Research Consortium: Activities to Support Establishment of a Sea Floor Monitoring Station Project

    SciTech Connect (OSTI)

    J. Robert Woolsey; Thomas M. McGee; Carol Blanton Lutken; Elizabeth Stidham

    2007-03-31

    The Gulf of Mexico Hydrates Research Consortium (GOM-HRC) was established in 1999 to assemble leaders in gas hydrates research. The Consortium is administered by the Center for Marine Resources and Environmental Technology, CMRET, at the University of Mississippi. The primary objective of the group is to design and emplace a remote monitoring station or sea floor observatory (MS/SFO) on the sea floor in the northern Gulf of Mexico by the year 2007, in an area where gas hydrates are known to be present at, or just below, the sea floor. This mission, although unavoidably delayed by hurricanes and other disturbances, necessitates assembling a station that will monitor physical and chemical parameters of the marine environment, including sea water and sea-floor sediments, on a more-or-less continuous basis over an extended period of time. In 2005, biological monitoring, as a means of assessing environmental health, was added to the mission of the MS/SFO. Establishment of the Consortium has succeeded in fulfilling the critical need to coordinate activities, avoid redundancies and communicate effectively among researchers in the arena of gas hydrates research. Complementary expertise, both scientific and technical, has been assembled to promote innovative research methods and construct necessary instrumentation. The observatory has now achieved a microbial dimension in addition to the geophysical, geological, and geochemical components it had already included. Initial components of the observatory, a probe that collects pore-fluid samples and another that records sea floor temperatures, were deployed in Mississippi Canyon 118 (MC118) in May of 2005. Follow-up deployments, planned for fall 2005, had to be postponed due to the catastrophic effects of Hurricane Katrina (and later, Rita) on the Gulf Coast. Station/observatory completion, anticipated for 2007, will likely be delayed by at least one year. These delays caused scheduling and deployments difficulties but many

  2. Building America Top Innovations Hall of Fame Profile … Attic...

    Energy Savers [EERE]

    Terminology Air Barrier Material (ABM) --- A does not allow air to pass throu plywoodOSB, foam board, duc lumber. Backing --- Any material that s be sprayed so as to provide an ...

  3. Energy impacts of attic duct retrofits in Sacramento houses

    SciTech Connect (OSTI)

    Jump, D.; Modera, M.

    1994-08-01

    Inefficiencies in air distribution systems have been identified as a major source of energy loss in US sunbelt homes. Research indicates that approximately 30--40% of the thermal energy delivered to the ducts passing through unconditioned spaces is lost through air leakage and conduction through the duct walls. Field experiments over the past several years have well documented the expected levels of air leakage and the extent to which that leakage can be reduced by retrofit. Energy savings have been documented to a more limited extent, based upon a few field studies and simulation model results. Simulations have also indicated energy loss through ducts during the off cycle caused by thermosiphon-induced flows, however this effect had not been confirmed experimentally. A field study has been initiated to separately measure the impacts of combined duct leak sealing and insulation retrofits, and to optimize a retrofit protocol for utility DSM programs. This paper describes preliminary results from 6 winter and 5 summer season houses. These retrofits cut overall duct leakage area approximately 64%, which translated to a reduction in envelope ELA of approximately 14%. Wrapping ducts and plenums with R-6 insulation translated to a reduction in average flow-weighted conduction losses of 33%. These experiments also confirmed the appropriateness of using duct ELA and operating pressures to estimate leakage flows for the population, but indicated significant variations between these estimates and measured flows on a house by house basis. In addition, these experiments provided a confirmation of the predicted thermosiphon flows, both under winter and summer conditions. Finally, average material costs were approximately 20% of the total retrofit costs, and estimates of labor required for retrofits based upon these experiments were: 0.04 person-hrs/cm{sup 2} of duct sealed and 0.21 person-hrs/m{sup 2} of duct insulated.

  4. Next Generation Attics and Roof Systems | Department of Energy

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

    Emerging Technologies Project for the 2013 Building Technologies Office's Program Peer Review PDF icon emrgtech26miller040413.pdf More Documents & Publications New Cool Roof ...

  5. Continuous sea-floor spreading in Red Sea: an alternative interpretation of magnetic anomaly pattern

    SciTech Connect (OSTI)

    La Brecque, J.L.; Zitellini

    1985-04-01

    The magnetic anomaly pattern over the Red Sea can be modeled as a continuous system of sea-floor spreading from the early Miocene to the present by using a timevarying process filter. The half spreading rate is approximately 1 cm/yr (0.4 in./yr) since initial rifting. The parameters that determine the process filter and development of the transition zone are the intrusion parameter (a measure of the dispersion of feeder dikes or horizontal strain about the rift axis), a flow parameter (a measure of the average flow width), and the effusion parameter (a measure of the volcanic effusion and thickness of layer 2). The authors estimate the flow parameter to be 2.7km(1.7 mi) and the intrusion parameter to be 7.5km(4.7 mi) at early rifting. These values suggest that a wide distribution of axial dikes or horizontal strain is the dominant factor in forming the magnetic anomaly pattern. Reduction in the width of the intrusion parameter and the effusion rate as rifting proceeded resulted in focusing of the strain, thinning of layer 2, and formation of the Red Sea deeps. Their modeling suggests that phase 2, or the stratoid phase, began about the time of anomaly 5C or chron C5C approximately 16 Ma. This age is compatible with geologic estimates of the initial rifting at the late Oligocene to early Miocene (Coleman, 1974; Gass, 1977). The opening rate for Africa-Arabia plate motion has remained relatively constant since early rifting although the African margin appears to be accreting faster than the Arabian plate.

  6. SUPPORT OF GULF OF MEXICO HYDRATE RESEARCH CONSORTIUM: ACTIVITIES TO SUPPORT ESTABLISHMENT OF A SEA FLOOR MONITORING STATION PROJECT

    SciTech Connect (OSTI)

    J. Robert Woolsey; Tom McGee; Carol Lutken; Elizabeth Stidham

    2006-06-01

    The Gulf of Mexico Hydrates Research Consortium (GOM-HRC) was established in 1999 to assemble leaders in gas hydrates research. The Consortium is administered by the Center for Marine Resources and Environmental Technology, CMRET, at the University of Mississippi. The primary objective of the group is to design and emplace a remote monitoring station or sea floor observatory (MS/SFO) on the sea floor in the northern Gulf of Mexico by the year 2007, in an area where gas hydrates are known to be present at, or just below, the sea floor. This mission, although unavoidably delayed by hurricanes and other disturbances, necessitates assembling a station that will monitor physical and chemical parameters of the marine environment, including sea water and sea-floor sediments, on a more-or-less continuous basis over an extended period of time. In 2005, biological monitoring, as a means of assessing environmental health was added to the mission of the MS/SFO. Establishment of the Consortium has succeeded in fulfilling the critical need to coordinate activities, avoid redundancies and communicate effectively among researchers in the arena of gas hydrates research. Complementary expertise, both scientific and technical, has been assembled to promote innovative research methods and construct necessary instrumentation. The observatory has now achieved a microbial dimension in addition to the geophysical and geochemical components it had already included. Initial components of the observatory, a probe that collects pore-fluid samples and another that records sea floor temperatures, were deployed in Mississippi Canyon 118 in May of 2005. Follow-up deployments, planned for fall 2005, had to be postponed due to the catastrophic effects of Hurricane Katrina (and later, Rita) on the Gulf Coast. Every effort was made to locate and retain the services of a suitable vessel and submersibles or Remotely Operated Vehicles (ROVs) following the storms and the loss of the contracted vessel

  7. Numerical analysis of heat transfer by conduction and natural convection in loose-fill fiberglass insulation--effects of convection on thermal performance

    SciTech Connect (OSTI)

    Delmas, A.A.; Wilkes, K.E.

    1992-04-01

    A two-dimensional code for solving equations of convective heat transfer in porous media is used to analyze heat transfer by conduction and convection in the attic insulation configuration. The particular cases treated correspond to loose-fill fiberglass insulation, which is characterized by high porosity and air permeability. The effects of natural convection on the thermal performance of the insulation are analyzed for various densities, permeabilities, and thicknesses of insulation. With convection increasing the total heat transfer through the insulation, the thermal resistance was found to decrease as the temperature difference across the insulating material increases. The predicted results for the thermal resistance are compared with data obtained in the large-scale climate simulator at the Roof Research Center using the attic test module, where the same phenomenon has already been observed. The way the wood joists within the insulation influence the start of convection is studied for differing thermophysical and dynamic properties of the insulating material. The presence of wood joists induces convection at a lower temperature difference.

  8. SUPPORT OF GULF OF MEXICO HYDRATE RESEARCH CONSORTIUM: ACTIVITIES TO SUPPORT ESTABLISHMENT OF A SEA FLOOR MONITORING STATION PROJECT

    SciTech Connect (OSTI)

    Paul Higley; J. Robert Woolsey; Ralph Goodman; Vernon Asper; Boris Mizaikoff; Angela Davis

    2005-08-01

    A Consortium, designed to assemble leaders in gas hydrates research, has been established at the University of Mississippi's Center for Marine Resources and Environmental Technology, CMRET. The primary objective of the group is to design and emplace a remote monitoring station on the sea floor in the northern Gulf of Mexico by the year 2005, in an area where gas hydrates are known to be present at, or just below, the sea floor. This mission necessitates assembling a station that will monitor physical and chemical parameters of the sea water and sea floor sediments on a more-or-less continuous basis over an extended period of time. Development of the station allows for the possibility of expanding its capabilities to include biological monitoring, as a means of assessing environmental health. Establishment of the Consortium has succeeded in fulfilling the critical need to coordinate activities, avoid redundancies and communicate effectively among researchers in this relatively new research arena. Complementary expertise, both scientific and technical, has been assembled to innovate research methods and construct necessary instrumentation. A year into the life of this cooperative agreement, we note the following achievements: (1) Progress on the vertical line array (VLA) of sensors: (A) Software and hardware upgrades to the data logger for the prototype vertical line array, including enhanced programmable gains, increased sampling rates, improved surface communications, (B) Cabling upgrade to allow installation of positioning sensors, (C) Adaptation of SDI's Angulate program to use acoustic slant ranges and DGPS data to compute and map the bottom location of the vertical array, (D) Progress in T''0'' delay and timing issues for improved control in data recording, (E) Successful deployment and recovery of the VLA twice during an October, 2003 cruise, once in 830m water, once in 1305m water, (F) Data collection and recovery from the DATS data logger, (G) Sufficient

  9. SUPPORT OF GULF OF MEXICO HYDRATE RESEARCH CONSORTIUM: ACTIVITIES TO SUPPORT ESTABLISHMENT OF A SEA FLOOR MONITORING STATION PROJECT

    SciTech Connect (OSTI)

    Paul Higley; J. Robert Woolsey; Ralph Goodman; Vernon Asper; Boris Mizaikoff; Angela Davis

    2005-11-01

    A Consortium, designed to assemble leaders in gas hydrates research, has been established at the University of Mississippi's Center for Marine Resources and Environmental Technology, CMRET. The primary objective of the group is to design and emplace a remote monitoring station on the sea floor in the northern Gulf of Mexico by the year 2005, in an area where gas hydrates are known to be present at, or just below, the sea floor. This mission necessitates assembling a station that will monitor physical and chemical parameters of the sea water and sea floor sediments on a more-or-less continuous basis over an extended period of time. Development of the station allows for the possibility of expanding its capabilities to include biological monitoring, as a means of assessing environmental health. Establishment of the Consortium has succeeded in fulfilling the critical need to coordinate activities, avoid redundancies and communicate effectively among researchers in this relatively new research arena. Complementary expertise, both scientific and technical, has been assembled to promote innovative research methods and construct necessary instrumentation. Noteworthy achievements one year into the extended life of this cooperative agreement include: (1) Progress on the vertical line array (VLA) of sensors: (1a) Repair attempts of the VLA cable damaged in the October >1000m water depth deployment failed; a new design has been tested successfully. (1b) The acoustic modem damaged in the October deployment was repaired successfully. (1c) Additional acoustic modems with greater depth rating and the appropriate surface communications units have been purchased. (1d) The VLA computer system is being modified for real time communications to the surface vessel using radio telemetry and fiber optic cable. (1e) Positioning sensors--including compass and tilt sensors--were completed and tested. (1f) One of the VLAs has been redesigned to collect near sea floor geochemical data. (2

  10. SUPPORT OF GULF OF MEXICO HYDRATE RESEARCH CONSORTIUM: ACTIVITIES TO SUPPORT ESTABLISHMENT OF A SEA FLOOR MONITORING STATION PROJECT

    SciTech Connect (OSTI)

    Paul Higley; J. Robert Woolsey; Ralph Goodman; Vernon Asper; Boris Mizaikoff; Angela Davis; Bob A. Hardage; Jeffrey Chanton; Rudy Rogers

    2006-05-18

    The Gulf of Mexico Hydrates Research Consortium (GOM-HRC) was established in 1999 to assemble leaders in gas hydrates research. The primary objective of the group has been to design and emplace a remote monitoring station or sea floor observatory (MS/SFO) on the sea floor in the northern Gulf of Mexico by the year 2005, in an area where gas hydrates are known to be present at, or just below, the sea floor. This mission, although unavoidably delayed by hurricanes and other disturbances, necessitates assembling a station that will monitor physical and chemical parameters of the sea water and sea floor sediments on a more-or-less continuous basis over an extended period of time. Development of the station has always included the possibility of expanding its capabilities to include biological monitoring, as a means of assessing environmental health. This possibility has recently achieved reality via the National Institute for Undersea Science and Technology's (NIUST) solicitation for proposals for research to be conducted at the MS/SFO. Establishment of the Consortium has succeeded in fulfilling the critical need to coordinate activities, avoid redundancies and communicate effectively among researchers in the arena of gas hydrates research. Complementary expertise, both scientific and technical, has been assembled to promote innovative research methods and construct necessary instrumentation. The observatory has achieved a microbial dimension in addition to the geophysical and geochemical components it had already included. Initial components of the observatory, a probe that collects pore-fluid samples and another that records sea floor temperatures, were deployed in Mississippi Canyon 118 in May of 2005. Follow-up deployments, planned for fall 2005, have had to be postponed and the use of the vessel M/V Ocean Quest and its two manned submersibles sacrificed due to the catastrophic effects of Hurricane Katrina (and later, Rita) on the Gulf Coast. Every effort is being

  11. Support of Gulf of Mexico Hydrate Research Consortium: Activities to Support Establishment of a Sea Floor Monitoring Station Project

    SciTech Connect (OSTI)

    Carol Lutken

    2006-09-30

    The Gulf of Mexico Hydrates Research Consortium (GOM-HRC) was established in 1999 to assemble leaders in gas hydrates research. The Consortium is administered by the Center for Marine Resources and Environmental Technology, CMRET, at the University of Mississippi. The primary objective of the group is to design and emplace a remote monitoring station or sea floor observatory (MS/SFO) on the sea floor in the northern Gulf of Mexico by the year 2007, in an area where gas hydrates are known to be present at, or just below, the sea floor. This mission, although unavoidably delayed by hurricanes and other disturbances, necessitates assembling a station that will monitor physical and chemical parameters of the marine environment, including sea water and sea-floor sediments, on a more-or-less continuous basis over an extended period of time. In 2005, biological monitoring, as a means of assessing environmental health, was added to the mission of the MS/SFO. Establishment of the Consortium has succeeded in fulfilling the critical need to coordinate activities, avoid redundancies and communicate effectively among researchers in the arena of gas hydrates research. Complementary expertise, both scientific and technical, has been assembled to promote innovative research methods and construct necessary instrumentation. The observatory has now achieved a microbial dimension in addition to the geophysical, geological, and geochemical components it had already included. Initial components of the observatory, a probe that collects pore-fluid samples and another that records sea floor temperatures, were deployed in Mississippi Canyon 118 in May of 2005. Follow-up deployments, planned for fall 2005, had to be postponed due to the catastrophic effects of Hurricane Katrina (and later, Rita) on the Gulf Coast. Station/observatory completion, anticipated for 2007, will likely be delayed by at least one year. The CMRET has conducted several research cruises during this reporting period

  12. SHERATON STATION SQUARE FLOOR PLAN FIRST FLOOR

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

    ... Slipstream Pilot-Scale Demonstration of a Novel Amine-Based Post-Combustion Process Technology for CO 2 Capture from Coal-Fired Power Plant Flue Gas (FE0007453) Krish ...

  13. Support of Gulf of Mexico Hydrate Research Consortium: Activities of Support Establishment of a Sea Floor Monitoring Station Project

    SciTech Connect (OSTI)

    J. Robert Woolsey; Thomas McGee; Carol Lutken

    2008-05-31

    The Gulf of Mexico Hydrates Research Consortium (GOM-HRC) was established in 1999 to assemble leaders in gas hydrates research that shared the need for a way to conduct investigations of gas hydrates and their stability zone in the Gulf of Mexico in situ on a more-or-less continuous basis. The primary objective of the group is to design and emplace a remote monitoring station or sea floor observatory (SFO) on the sea floor in the northern Gulf of Mexico, in an area where gas hydrates are known to be present at, or just below, the sea floor and to discover the configuration and composition of the subsurface pathways or 'plumbing' through which fluids migrate into and out of the hydrate stability zone (HSZ) to the sediment-water interface. Monitoring changes in this zone and linking them to coincident and perhaps consequent events at the seafloor and within the water column is the eventual goal of the Consortium. This mission includes investigations of the physical, chemical and biological components of the gas hydrate stability zone - the sea-floor/sediment-water interface, the near-sea-floor water column, and the shallow subsurface sediments. The eventual goal is to monitor changes in the hydrate stability zone over time. Establishment of the Consortium succeeded in fulfilling the critical need to coordinate activities, avoid redundancies and communicate effectively among those involved in gas hydrates research. Complementary expertise, both scientific and technical, has been assembled to promote innovative methods and construct necessary instrumentation. Following extensive investigation into candidate sites, Mississippi Canyon 118 (MC118) was chosen by consensus of the Consortium at their fall, 2004, meeting as the site most likely to satisfy all criteria established by the group. Much of the preliminary work preceding the establishment of the site - sensor development and testing, geophysical surveys, and laboratory studies - has been reported in agency

  14. Dispersion of UO{sub 2}F{sub 2} aerosol and HF vapor in the operating floor during winter ventilation at the Paducah Gaseous Diffusion Plant

    SciTech Connect (OSTI)

    Kim, S.H.; Chen, N.C.J.; Taleyarkhan, R.P.; Keith, K.D.; Schmidt, R.W.; Carter, J.C.

    1996-12-30

    The gaseous diffusion process is currently employed at two plants in the US: the Paducah Gaseous Diffusion Plant and the Portsmouth Gaseous Diffusion Plant. As part of a facility-wide safety evaluation, a postulated design basis accident involving large line-rupture induced releases of uranium hexafluoride (UF{sub 6}) into the process building of a gaseous diffusion plant (GDP) is evaluated. When UF{sub 6} is released into the atmosphere, it undergoes an exothermic chemical reaction with moisture (H{sub 2}O) in the air to form vaporized hydrogen fluoride (HF) and aerosolized uranyl fluoride (UO{sub 2}F{sub 2}). These reactants disperse in the process building and transport through the building ventilation system. The ventilation system draws outside air into the process building, distributes it evenly throughout the building, and discharges it to the atmosphere at an elevated temperature. Since air is recirculated from the cell floor area to the operating floor, issues concerning in-building worker safety and evacuation need to be addressed. Therefore, the objective of this study is to evaluate the transport of HF vapor and UO{sub 2}F{sub 2} aerosols throughout the operating floor area following B-line break accident in the cell floor area.

  15. Reservoir characterization of a Permian Slope Fan/basin-floor fan complex: Cherry Canyon Formation, Ward County, Texas

    SciTech Connect (OSTI)

    Spain, D.R. )

    1990-05-01

    The Cherry Canyon Formation consists of a 925-ft- (280-m) thick section of up to 25 different sandstone and siltstone units that were deposited in a deep-water environment in the Delaware basin. Lowstand sedimentation by fluid density currents with periodic turbidity currents resulted in a broad-migrating channelized slope fan/basin-floor fan complex interpreted to exhibit an intricate reservoir geometry. Thirteen lithofacies are identified. Primary reservoirs are found in massive channel sandstones, and beds of lesser reservoir quality are present in laminated overbank/interchannel sandstones. Original depositional fabric modified by diagenetic cements and authigenic clays created three petrophysical rock types. Type I reservoirs contain intergranular macroporosity relatively free of carbonate cement and authigenic clay. Types II and III reservoirs contain mesoporosity and abundant microporosity created by moderate to abundant carbonate cementation and plugging of pore throats by authigenic grain-coating chlorite and pore-bridging fibrous illite. Depositional and diagenetic factors combine with insufficient oil column height to yield low initial oil saturations that decrease with depth in a hydrocarbon-water transition zone. Mercury injection capillary pressure measurements illustrate the vertical stratification of petrophysical rock types that exist in the section; reservoirs which contain all water are interbedded with reservoirs containing mostly oil. Subsequently, a slight change in height above free water can drive production from all water to all oil. Hydrocarbon column heights greater than 60 ft are required to establish water-free oil production. Accurate reservoir water saturations can be derived using Archie's equation; when combined with a movable oil analysis and drainage relative permeability/fractional flow curves, initial water cuts can be predicted to maximize deliverability.

  16. Investigating Solutions to Wind Washing Issues in Two-Story Florida Homes, Phase 2

    SciTech Connect (OSTI)

    Withers, Charles R.; Kono, Jamie

    2015-04-13

    With U.S. Department of Energy goals of reducing existing home energy use by 30% and new home energy use by 50%, it is imperative to focus on several energy efficiency measures, including the quality of air and thermal barriers. This report provides results from a second-phase research study of a phenomenon generally referred to as wind washing. Wind washing is the movement of unconditioned air around or through building thermal barriers in such a way as to diminish or nullify the intended thermal performance. In some cases, thermal and air barriers are installed very poorly or not at all, and air can readily move from unconditioned attic spaces into quasi-conditioned interstitial spaces. This study focused on the impact of poorly sealed and insulated floor cavities adjacent to attic spaces in Florida homes. In these cases, unconditioned attic air can be transferred into floor cavities through pathways driven by natural factors such as wind, or by thermal differences between the floor cavity and the attic. Air can also be driven into a floor cavity through mechanical forces imposed by return duct leakage in the floor cavity.

  17. New Whole-House Solutions Case Study: Green Coast Enterprises, New Orleans, Louisiana

    SciTech Connect (OSTI)

    none,

    2012-04-01

    This builder worked with Building Science Corporation to build moisture- and flood-resistant HERS- 65 affordable homes on pier foundations, with borate pressure-treated lumber, wind-resistant OSB sheathing, hurricane strapping, roofing membrane, and closed-cell spray foam in attic, walls, and under floor.

  18. New Whole-House Solutions Case Study: Tom Walsh & Co.

    SciTech Connect (OSTI)

    none,

    2013-02-01

    Tom Walsh & Companys homes in an urban infill project in Portland achieved meets 2012 IECC insulation requirements in the marine climate with R-21 fiberglass batt walls, R-25 slab insulation and R-49 spray foam and cellulose attic floors.

  19. Grand Junction Projects Office Remedial Action Project: Feasibility test of real-time radiation monitoring during removal of surface contamination from concrete floors

    SciTech Connect (OSTI)

    Leino, R.; Corle, S.

    1995-10-01

    This feasibility test was conducted to determine if real-time radiation-monitoring instruments could be mounted on decontamination machines during remediation activities to provide useful and immediate feedback to equipment operators. The U.S. Department of Energy (DOE) sponsored this field test under the Grand Junction Projects Office Remedial Action Project (GJPORAP) to identify a more efficient method to remove radiological contamination from concrete floor surfaces. This test demonstrated that project durations and costs may be reduced by combining radiation-monitoring equipment with decontamination machines. The test also demonstrated that a microprocessor-based instrument such as a radiation monitor can withstand the type of vibration that is characteristic of floor scabblers with no apparent damage. Combining radiation-monitoring equipment with a decontamination machine reduces the time and costs required to decontaminate concrete surfaces. These time and cost savings result from the reduction in the number of interim radiological surveys that must be conducted to complete remediation. Real-time radiation monitoring allows equipment operators to accurately monitor contamination during the decontamination process without support from radiological technicians, which also reduces the project duration and costs. The DOE Grand Junction Projects Office recommends more extensive and rigorous testing of this real-time radiation monitoring to include a variety of surfaces and decontamination machines. As opportunities arise, additional testing will be conducted under GJPORAP.

  20. Results of detailed analyses performed on boring cores extracted from the concrete floors of the Fukushima Daiichi nuclear power plant reactor buildings

    SciTech Connect (OSTI)

    Maeda, Koji; Sasaki, S.; Kumai, M.; Sato, Isamu; Osaka, Masahiko; Fukushima, Mineo; Kawatsuma, Shinji; Goto, Tetsuo; Sakai, Hitoshi; Chigira, Takayuki; Murata, Hirotoshi

    2013-07-01

    Due to the massive earthquake and tsunami on March 11, 2011, and the following severe accident at the Fukushima Daiichi Nuclear Power Plant, concrete surfaces within the reactor buildings were exposed to radioactive liquid and vapor phase contaminants. In order to clarify the situation of this contamination in the reactor buildings of Units 1, 2 and 3, selected samples were transported to the Fuels Monitoring Facility in the Oarai Engineering Center of JAEA where they were subjected to analyses to determine the surface radionuclide concentrations and to characterize the radionuclide distributions in the samples. In particular, penetration of radiocesium in the surface coatings layer and sub-surface concrete was evaluated. The analysis results indicate that the situation of contamination in the building of Unit 2 was different from others, and the protective surface coatings on the concrete floors provided significant protection against radionuclide penetration. The localized penetration of contamination in the concrete floors was found to be confined within a millimeter of the surface of the coating layer of some millimeters. (authors)

  1. A Study of the Energy-Saving Potential of Metal Roofs Incorporating Dynamic Insulation Systems

    SciTech Connect (OSTI)

    Biswas, Kaushik; Miller, William A; Kriner, Scott; Manlove, Gary

    2013-01-01

    This article presents various metal roof configurations that were tested at Oak Ridge National Laboratory in Tennessee, U.S. between 2009 and 2013, and describes their potential for reducing the attic-generated space-conditioning loads. These roofs contained different combinations of phase-change material, rigid insulation, low emittance surface, and above-sheathing ventilation with standing-seam metal panels on top. These roofs were designed to be installed on existing roofs decks, or on top of asphalt shingles for retrofit construction. All the tested roofs showed the potential for substantial energy savings compared to an asphalt shingle roof, which was used as a control for comparison. The roofs were constructed on a series of adjacent attics separated at the gables using thick foam insulation. The attics were built on top of a conditioned room. All attics were vented at the soffit and ridge. The test roofs and attics were instrumented with an array of thermocouples. Heat flux transducers were installed in the roof deck and attic floor (ceiling) to measure the heat flows through the roof and between the attic and conditioned space below. Temperature and heat flux data were collected during the heating, cooling and swing seasons over a three-year period. Data from previous years of testing have been published. Here, data from the latest roof configurations being tested in year three of the project are presented. All test roofs were highly effective in reducing the heat flows through the roof and ceiling, and in reducing the diurnal attic-temperature fluctuations.

  2. Performance Evaluation of Advanced Retrofit Roof Technologies Using Field-Test Data Phase Three Final Report, Volume 1

    SciTech Connect (OSTI)

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

    2014-05-01

    This article presents various metal roof configurations that were tested at Oak Ridge National Laboratory in Tennessee, U.S.A. between 2009 and 2013, and describes their potential for reducing the attic-generated space conditioning loads. These roofs contained different combinations of phase change material, rigid insulation, low emittance surface and above-sheathing ventilation, with standing-seam metal panels on top. These roofs were designed to be installed on existing roofs decks, or on top of asphalt shingles for retrofit construction. All the tested roofs showed the potential for substantial energy savings compared to an asphalt shingle roof, which was used as a control for comparison. The roofs were constructed on a series of adjacent attics separated at the gables using thick foam insulation. The attics were built on top of a conditioned room. All attics were vented at the soffit and ridge. The test roofs and attics were instrumented with an array of thermocouples. Heat flux transducers were installed in the roof deck and attic floor (ceiling) to measure the heat flows through the roof and between the attic and conditioned space below. Temperature and heat flux data were collected during the heating, cooling and swing seasons over a 3 year period. Data from previous years of testing have been published. Here, data from the latest roof configurations being tested in year 3 of the project are presented. All test roofs were highly effective in reducing the heat flows through the roof and ceiling, and in reducing the diurnal attic temperature fluctuations.

  3. Extended Sleeve Products Allow Control and Monitoring of Process Fluid Flows Inside Shielding, Behind Walls and Beneath Floors - 13041

    SciTech Connect (OSTI)

    Abbott, Mark W.

    2013-07-01

    dependent on the application requirements. The design of the Extended Sleeve family of products provides a platform which solves a variety of accessibility problems associated with controlling process flow streams in remote, hard to reach locations in harsh environments. Installation of the equipment described has shown to allow access to flow streams that otherwise would require exceptional means to access and control. The Extended Sleeve family of products provides a scalable solution to both control and monitor process fluid flow through shielding, walls or floors when direct connection is advantageous. (authors)

  4. Engineering Evaluation Report on K-311-1 Floor Subsidence (2008 Annual Report) at the East Tennessee Technology Park, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Knott R.B.

    2008-11-13

    The purpose of this task is to evaluate the effect of floor settlement on building structure, piping, and equipment foundations between column lines 1 and 2 and B and K of Bldg. K-311-1 (see Fig. A-1 in Appendix A) at East Tennessee Technology Park (ETTP), Oak Ridge, Tennessee. Revision 0 of this document covers the 2005 annual inspection. Revision 1 addresses the 2006 annual inspection, Revision 2 addresses the 2007 annual inspection, and Revision 3 covers the 2008 annual inspection, as indicated by the changed report title. A civil survey and visual inspection were performed. Only a representative number of points were measured during the 2008 survey. The exact location of a number of survey points in Table A-1 could not be accurately determined in the 2008 survey since these points had not been spray painted since 2003. The points measured are deemed adequate to support the conclusions of this report. Based on the survey and observations, there has been no appreciable change in the condition of the unit since the 2007 inspection. The subsidence of the floor presents concerns to the building structure due to the possible indeterminate load on the pipe gallery framing. Prior to demolition activities that involve the piping or removal of the equipment, such as vent, purge and drain and foaming, engineering involvement in the planning is necessary. The piping connected to the equipment is under stress, and actions should be implemented to relieve this stress prior to disturbing any of the equipment or associated piping. In addition, the load on the pipe gallery framing needs to be relieved prior to any activities taking place in the pipe gallery. Access to this area and the pipe gallery is not allowed until the stress is released.

  5. Measure Guideline: Implementing a Plenum Truss for a Compact Air Distribution System

    SciTech Connect (OSTI)

    Burdick, A.

    2013-10-01

    This Measure Guideline presents the steps to implement a compact duct system inside an attic bulkhead (plenum truss) of a one-story, slab-on-grade (SOG) home. In a compact duct design, ductwork runs are reduced in length to yield a smaller and more compact duct system. Less energy will be lost through ductwork if the ducts are contained within the thermal enclosure of the house. These measures are intended for the production builder working to meet the 2012 International Energy Conservation Code (IECC) requirements and keep the ductwork within the thermal enclosure of the house. This measure of bringing the heating, ventilation and air conditioning (HVAC) equipment and ductwork within the thermal enclosure of the house is appropriate for the builder wishing to avoid cathedralizing the insulation in the attic space (i.e., locating it at the underside of the roof deck rather than along the attic floor) or adding dropped soffits.

  6. Measure Guideline: Implementing a Plenum Truss for a Compact Air Distribution System

    SciTech Connect (OSTI)

    Burdick, A.

    2013-10-01

    This Measure Guideline presents the steps to implement a compact duct system inside an attic bulkhead (plenum truss) of a one-story, slab-on-grade home. In a compact duct design, ductwork runs are reduced in length to yield a smaller and more compact duct system. Less energy will be lost through ductwork if the ducts are contained within the thermal enclosure of the house. These measures are intended for the production builder working to meet the 2012 International Energy Conservation Code (IECC) requirements and keep the ductwork within the thermal enclosure of the house. This measure of bringing the heating, ventilation and air conditioning (HVAC) equipment and ductwork within the thermal enclosure of the house is appropriate for the builder wishing to avoid cathedralizing the insulation in the attic space (i.e., locating it at the underside of the roof deck rather than along the attic floor) or adding dropped soffits.

  7. Ghosts in the Attic - Horror Stories from the Field, What to...

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

    Energy Efficiency Improvements (201) Better Buildings Network View | October 2015 Incorporating Energy Efficiency into Multifamily, Affordable Housing Rehabilitation Projects (201)

  8. Field measurement of the interactions between heat pumps and attic duct systems in residential buildings

    SciTech Connect (OSTI)

    Modera, M.P.; Jump, D.A.

    1994-11-01

    Research efforts to improve residential heat-pump performance have tended to focus on laboratory and theoretical studies of the machine itself, with some limited field research having been focused on in-situ performance and installation issues. One issue that has received surprisingly little attention is the interaction between the heat pump and the duct system to which it is connected. This paper presents the results of a field study that addresses this interaction. Field performance measurements before and after sealing and insulating the duct systems were made on three heat pumps. From the pre-retrofit data it was found that reductions in heat-pump capacity due to low outdoor temperatures and/or coil frosting are accompanied by lower duct-system energy delivery efficiencies. The conduction loss reductions, and thus the delivery temperature improvements, due to adding duct insulation were found to vary widely depending on the length of the particular duct section, the thermal mass of that duct section, and the cycling characteristics of the heat-pump. In addition, it was found that the use of strip-heat back-up decreased after the retrofits, and that heat-pump cycling increased dramatically after the retrofits, which respectively increase and decrease savings due to the retrofits. Finally, normalized energy use for the three systems which were operated consistently pre- and post-retrofit showed an average reduction of 19% after retrofit, which corresponds to a chance in overall distribution-system efficiency of 24%.

  9. Radiant barrier testing to assess effects of dust accumulation, attic ventilation, and other key variables

    SciTech Connect (OSTI)

    Hall, J.A.

    1988-07-01

    This report summarized the work accomplished during the fifth season of testing at TVA's EUTF. Previously, tests were conducted at the EUTF during the 1985/1986 summer and winter and the 1986/1987 summer and winter. This previous work at TVA, and work at the University of Mississippi, the FSEC, Texas A and M, and ORNL, have shown that in the summer: all RB installation locations provide large reductions in ceiling heat flux when used with R11 and R19 fiberglass, cellulose, or rock wool; reductions in ceiling heat flux from RBs when used with R30 are not nearly as large as from RBs when used with R19; the RBR and RBT provide sizable reductions in whole-house cooling loads; and the RBT provides the largest reduction in ceiling heat flux in most cases. Previous work has shown that in the winter: the RBT provides moderate ceiling heat flux reductions and whole-house heating load saving with R11 and R19 fiberglass, cellulose, or rock wool; the RBR shows very little reduction in ceiling heat flux in most cases; and reductions in ceiling heat flux with R30 are usually much less than with R11 or R19 insulation. 12 refs., 14 figs., 11 tabs.

  10. A Comparison of Simulation Capabilities for Ducts

    SciTech Connect (OSTI)

    Miller, William A.; Smith, Matt K.; Gu, Lixing; New, Joshua Ryan

    2014-11-01

    Typically, the cheapest way to install a central air conditioning system in residential buildings is to place the ductwork in the attic. Energy losses due to duct-attic interactions can be great, but current whole-house models are unable to capture the dynamic multi-mode physics of the interactions. The building industry is notoriously fragmented and unable to devote adequate research resources to solve this problem. Builders are going to continue to put ducts in the attic because floor space is too expensive to closet them within living space, and there are both construction and aesthetic issues with other approaches such as dropped ceilings. Thus, there is a substantial need to publicly document duct losses and the cost of energy used by ducts in attics so that practitioners, builders, homeowners and state and federal code officials can make informed decisions leading to changes in new construction and additional retrofit actions. Thus, the goal of this study is to conduct a comparison of AtticSim and EnergyPlus simulation algorithms to identify specific features for potential inclusion in EnergyPlus that would allow higher-fidelity modeling of HVAC operation and duct transport of conditioned air. It is anticipated that the resulting analysis from these simulation tools will inform energy decisions relating to the role of ducts in future building energy codes and standards.

  11. Floor San Francisco, CA 94104

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

    was delivered at the SunShot Concentrating Solar Power (CSP) Program Review 2013, held April 23-25, 2013 near Phoenix, Arizona. csp_review_meeting_042313_koretz.pdf (9.14 MB) More Documents & Publications 2016 CSP Summit Day 2 2014 Concentrating Solar Power Report EIS-0416: Final Environmental Impact Statement Department of Energy

    The Gas Technology Institute, in collaboration with Cannon Boiler Works, Integrated CHP Systems Corp., Capstone Turbine Corporation, Johnston Boiler

  12. Floor San Francisco, CA 94104

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

    ... Coal mining uses 70 million to 260 million gallons of water each day, 21 and a 500 MW coal fired power plant uses 300 million gallons of water a day just for cooling. 22 However, ...

  13. HYDRATE RESEARCH ACTIVITIES THAT BOTH SUPPORT AND DERIVE FROM THE MONITORING STATION/SEA-FLOOR OBSERVATORY, MISSISSIPPI CANYON 118, NORTHERN GULF OF MEXICO

    SciTech Connect (OSTI)

    Lutken, Carol

    2013-07-31

    A permanent observatory has been installed on the seafloor at Federal Lease Block, Mississippi Canyon 118 (MC118), northern Gulf of Mexico. Researched and designed by the Gulf of Mexico Hydrates Research Consortium (GOM-HRC) with the geological, geophysical, geochemical and biological characterization of in situ gas hydrates systems as the research goal, the site has been designated by the Bureau of Ocean Energy Management as a permanent Research Reserve where studies of hydrates and related ocean systems may take place continuously and cooperatively into the foreseeable future. The predominant seafloor feature at MC118 is a carbonate-hydrate complex, officially named Woolsey Mound for the founder of both the GOM-HRC and the concept of the permanent seafloor hydrates research facility, the late James Robert “Bob” Woolsey. As primary investigator of the overall project until his death in mid-2008, Woolsey provided key scientific input and served as chief administrator for the Monitoring Station/ Seafloor Observatory (MS-SFO). This final technical report presents highlights of research and accomplishments to date. Although not all projects reached the status originally envisioned, they are all either complete or positioned for completion at the earliest opportunity. All Department of Energy funds have been exhausted in this effort but, in addition, leveraged to great advantage with additional federal input to the project and matched efforts and resources. This report contains final reports on all subcontracts issued by the University of Mississippi, Administrators of the project, Hydrate research activities that both support and derive from the monitoring station/sea-floor Observatory, Mississippi Canyon 118, northern Gulf of Mexico, as well as status reports on the major components of the project. All subcontractors have fulfilled their primary obligations. Without continued funds designated for further project development, the Monitoring Station

  14. Existing Whole-House Solutions Case Study: Performance of a Hot-Dry Climate Whole-House Retrofit, Stockton, California

    SciTech Connect (OSTI)

    2014-09-01

    The Alliance for Residential Building Innovation (ARBI) team conducted a deep retrofit project within Stockton’s Large-Scale Retrofit Program that expanded on the standard package by adding HVAC, water heater and window upgrades to the ducting, attic and floor insulation, domestic hot water insulation, envelope sealing, lighting and ventilation upgrades. Post-retrofit site energy savings were 23% compared to the pre-retrofit case.

  15. Technology Solutions Case Study: Investigating Solutions to Wind Washing Issues in Two-Story Florida Homes: Phase 2, Southeastern United States

    SciTech Connect (OSTI)

    2015-05-01

    In many two-story homes, there are attic spaces above the first-floor of the home that border portions of the second-story conditioned space. These spaces have breaches of the air and thermal boundaries, creating a phenomenon known as wind washing. This can cause attic air above the first-floor space to be driven into the cavity between the first and second floors by wind, thermal buoyancy forces, or mechanical driving forces as well as circulation of hot attic air against the wallboard because of gaps between insulation batts installed on knee walls and the gypsum wallboard. In this project, the U.S. Department of Energy team Building America Partnership for Improved Residential Construction (BA-PIRC) investigated wind washing in 56 homes. The goals were to identify the failure mechanisms that lead to wind washing, characterize the pathways for air and heat to enter the house, and evaluate the seasonal energy savings and peak demand reduction that can result from repairing these wind washing problems. Based on this research, the team developed recommendations for cost-effective retrofit solutions and information that can help avoid these problems in new construction.

  16. Aeromagnetic anomalies and discordant lineations beneath the Niger Delta: Implications for new fracture zones and multiple sea-floor spreading directions in the meso-Atlantic' Gulf of Guinea cul-de-sac

    SciTech Connect (OSTI)

    Babalola, O.O.; Gipson, M. Jr. )

    1991-06-01

    An aeromagnetic contour map compiled over shallow water and onshore portions of the Nigerian continental margin, shows several elongate, long-wavelength anomaly closures with some alternating polarity, separated by steep gradient, NE lineations. The lineations are interpreted as new fracture zones or extensions of previously mapped ones. The NE trend in the western delta region is concordant with the fracture zone trends of the deeper Gulf of Guinea. Aeromagnetic lineations of the SE Niger Delta Basin however, discordantly trend ENE. Their termination against the former, is interpreted as evidence of early sea-floor spreading in a ENE-WSW direction in addition to the well documented NE-SW spreading of the Gulf of Guinea and the rest of the meso-Atlantic sea-floor; The geophysical crustal structure indicate the existence of two Early Cretaceous triple junctions beneath the Niger Delta Basin. The two triple-junctions further support the hypothesis that the African continent was a multi-plate system (in the Niger Delta region) during the early opening of the Atlantic.

  17. Designing New Transit Bus Garages to be Fuel Flexible

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

    ... a flat roof with "open web steel joists" in combination with I-beams to support the roof. ... case of either the flat roof using open web steel joists, or the gable roof structure, ...

  18. Building America Top Innovations 2014 Profile: Cost-Optimized Attic Insulation Solution for Factory-Built Homes

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

    INNOVATIONS BUILDING AMERICA Recognizing Top Innovations in Building Science - The U.S. Department of Energy's Building America program was started in 1995 to provide research and development to the residential new construction and remodeling industry. As a national center for world-class research, Building America funds integrated research in market- ready technology solutions through collaborative partnerships between building and remodeling industry leaders, nationally recognized building

  19. COMET TA Floor Plan 100225.vc6

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

    West Hall Door Emg Exit W Trench Room 1107 S Structural Beam Rack Argus Chamber Interaction Chamber Work Station 8 3 0 2 - V B L as phere CL 420mm f rom N i nner wall. Lens h...

  20. Pittsburgh Airport Marriott Hotel Floor Plan

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

    of LG Fuel Cell System Projects - Performance, Durability, Cost Shung Ik Lee and Adam Babcock, LG Fuel Cell Systems, Inc. 12:15 - 1:30 pm LUNCH in Coraopolis, Findlay, Moon Rooms 3 ...

  1. Short-Term Monitoring Results for Advanced New Construction Test House - Roseville, California

    SciTech Connect (OSTI)

    Stecher, D.; Brozyna, K.; Imm, C.

    2013-09-01

    A builder (K. Hovnanian® Homes®), design consultant, and trades collaborated to identify a systems integrated measures package for a 2,253-ft² slab-on-grade ranch house to achieve a modeled energy savings of 60% with respect to the Building America House Simulation Protocols, while minimizing construction costs and without requiring changes to the drawing that would impact local code or zoning approval. The key building improvements were applying R-10 insulation to the slab edge, increasing exterior wall cavity insulation from R-13 to R-15, and increasing attic insulation from R-30 to R-38. Also, the air handling unit was relocated from the attic to conditioned space, and ductwork was relocated along the attic floor with an insulated bulkhead built above it. Short-term testing results showed that duct air leakage was low due to short duct runs and the placement of ductwork in conditioned space. However, during commissioning, the lack of access for servicing the ductwork and dampers in the bulkhead area prevented retroactive balancing of individual branches, resulting in significant differences between specified and measured airflow values for some duct runs. Thermal imaging results performed on the house when operating in both heating and cooling modes validated historic stratification issues of ceiling supply registers with high supply air temperatures. Long-term monitoring results will be detailed in a future report.

  2. Heating, Ventilation, and Air Conditioning Design Strategy for a Hot-Humid Production Builder

    SciTech Connect (OSTI)

    Kerrigan, P.

    2014-03-01

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

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

    SciTech Connect (OSTI)

    Not Available

    2014-03-01

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

  4. DOE Zero Energy Ready Home Case Study: Preferred Builders, Old Greenwich, CT, Custom

    Broader source: Energy.gov [DOE]

    Case study of a DOE Zero Energy Ready Home in Old Greenwich, CT, that scored HERS 42 without PV or HERS 20 with PV. This 2,700-square-foot custom home has advanced framed walls with R-24 blown cellulose plus R-7.5 EPS rigid foam, membrane-coated OSB, a closed-cell spray foamed attic, R-13 closed-cell spray foam under the slab and on basement walls, an ERV, and a gas boiler for forced air and radiant floor heat.

  5. Weatherization Installer/Technician Fundamentals 2.0 - Roofing, Flashing,

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

    and Attic Ventilation Installation Needs | Department of Energy Roofing, Flashing, and Attic Ventilation Installation Needs Weatherization Installer/Technician Fundamentals 2.0 - Roofing, Flashing, and Attic Ventilation Installation Needs Roofing, Flashing, and Attic Ventilation Installation Needs - Complete (4.45 MB) Lesson Plan: Roofing, Flashing, and Attic Ventilation Installation Needs (127.32 KB) PowerPoint: Roofing, Flashing, and Attic Ventilation Installation Needs (4.39 MB) More

  6. "Table HC14.2 Living Space Characteristics by West Census Region...

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

    "Basements" "Basement in Single-Family Homes" "and Apartments in 2-4 Unit ... "Attics" "Attic in Single-Family Homes and" "Apartments in 2-4 Unit ...

  7. "Table HC13.2 Living Space Characteristics by South Census...

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

    "Basements" "Basement in Single-Family Homes" "and Apartments in 2-4 Unit ... "Attics" "Attic in Single-Family Homes and" "Apartments in 2-4 Unit ...

  8. "Table HC10.2 Living Space Characteristics by U.S. Census Region...

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

    "Basements" "Basement in Single-Family Homes" "and Apartments in 2-4 Unit ... "Attics" "Attic in Single-Family Homes and" "Apartments in 2-4 Unit ...

  9. "Table HC12.2 Living Space Characteristics by Midwest Census...

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

    "Basements" "Basement in Single-Family Homes" "and Apartments in 2-4 Unit ... "Attics" "Attic in Single-Family Homes and" "Apartments in 2-4 Unit ...

  10. " Million U.S. Housing Units"

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

    ... "Basements" "Basement in Single-Family Homes" "and Apartments in 2-4 Unit ... "Attics" "Attic in Single-Family Homes and" "Apartments in 2-4 Unit ...

  11. "Table HC15.2 Living Space Characteristics by Four Most Populated...

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

    "Basements" "Basement in Single-Family Homes" "and Apartments in 2-4 Unit ... "Attics" "Attic in Single-Family Homes and" "Apartments in 2-4 Unit ...

  12. Deep Energy Retrofits

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

    it) - Allows for re-skinning building without having to remove existing siding ...band Joist Attachment Attachment * Door Frame Detail El i l * Electrical Detail t ...

  13. Building America Top Innovations 2013 Profile – Next Generation Advanced Framing

    SciTech Connect (OSTI)

    none,

    2013-09-01

    This Top Innovation profile documents faster, smarter ways to employ three advanced framing techniques: continuous drywall, rim joist headers, and continuous sheathing for raised heel trusses.

  14. Cooling and Heating Season Impacts of Right-Sizing of Fixed- and Variable-Capacity Heat Pumps With Attic and Indoor Ductwork

    SciTech Connect (OSTI)

    Cummings, James; Withers, Charles; Kono, Jamie

    2015-06-24

    A new generation of full variable-capacity air-conditioning (A/C) and heat pump units has come on the market that promises to deliver very high cooling and heating efficiency. The units are controlled differently than standard single-capacity (fixed-capacity) systems. Instead of cycling on at full capacity and cycling off when the thermostat is satisfied, the new units can vary their capacity over a wide range (approximately 40%–118% of nominal full capacity) and stay on for 60%–100% more hours per day than the fixed-capacity systems depending on load-to-capacity ratios. Two-stage systems were not evaluated in this research effort.

  15. Cooling and Heating Season Impacts of Right-Sizing of Fixed- and Variable-Capacity Heat Pumps With Attic and Indoor Ductwork

    SciTech Connect (OSTI)

    Cummings, James; Withers, Charles; Kono, Jamie

    2015-06-01

    A new generation of central, ducted variable-capacity heat pump systems has come on the market, promising very high cooling and heating efficiency. They are controlled differently than standard fixed-capacity systems. Instead of cycling on at full capacity and then cycling off when the thermostat is satisfied, they vary their cooling and heating output over a wide range (approximately 40% - 118% of nominal full capacity), thus staying 'on' for 60% - 100% more hours per day compared to fixed -capacity systems. Experiments in this research examined the performance of 2-ton and 3-ton fixed- and variable-capacity systems and the impacts of system oversizing.

  16. Property:Building/TotalFloorArea | Open Energy Information

    Open Energy Info (EERE)

    Building 05K0019 + 24,000 + Sweden Building 05K0020 + 2,761 + Sweden Building 05K0021 + 5,100 + Sweden Building 05K0022 + 16,900 + Sweden Building 05K0023 + 9,541 + Sweden Building...

  17. Property:Building/FloorAreaTotal | Open Energy Information

    Open Energy Info (EERE)

    Building 05K0019 + 24,000 + Sweden Building 05K0020 + 2,761 + Sweden Building 05K0021 + 5,100 + Sweden Building 05K0022 + 17,000 + Sweden Building 05K0023 + 9,500 + Sweden Building...

  18. New CMI process recycles magnets from factory floor | The Ames...

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

    the rare-earth metals for reuse. But CMI scientist Ikenna Nlebedim said he and co-inventor Bill McCallum wanted to push further. "We decided to see if there is a possibility of...

  19. Savings Project: Insulate and Air Seal Floors Over Unconditioned...

    Office of Environmental Management (EM)

    Blanket insulation Wire fasteners Tape measure Sharp utility knife Caulk and foam sealant Caulk gun Stepladder Straightedge Respirator or dust mask Eye protection Protective ...

  20. Recycling Magnets from the Factory Floor | The Ames Laboratory

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

    Energy Innovation Hub led by the Ames Laboratory, recovers valuable rare-earth magnetic material from manufacturing waste and creates useful magnets out of it. Ames Laboratory...

  1. Evaluation of Crawlspace Retrofits in Multifamily Buildings

    SciTech Connect (OSTI)

    Rudd, A.

    2014-09-01

    In 2011 and early 2012, Building Science Corporation (BSC) collaborated with Innova Services Corporation on a multifamily community unvented crawlspace retrofit project at Oakwood Gardens in Lansdale, Pennsylvania. BSC provided design consulting services and pre- and post-retrofit evaluation, testing, and data monitoring. The existing condition was a vented crawlspace with an uninsulated floor between the crawlspace and the dwelling units above. The crawlspace was therefore a critically weak link in the building enclosure and was ripe for improvement. Saving energy was the primary interest and goal, but the greatest challenge in this unvented crawlspace retrofit project was working through a crawlspace bulk water intrusion problem caused by inadequate site drainage, window well drainage, foundation wall drainage, and a rising water table during rainy periods. While the unvented crawlspace retrofit was effective in reducing heat loss, and the majority of the bulk water drainage problems had been resolved, the important finding was that some of the wood joists embedded in masonry pockets behind the brick veneer were showing signs of moisture damage.

  2. Roof Savings Calculator Suite

    Energy Science and Technology Software Center (OSTI)

    2013-11-22

    The software options currently supported by the simulation engine can be seen/experienced at www.roofcalc.com. It defaults all values to national averages with options to test a base-case (residential or commercial) building versus a comparison building with inputs for building type, location, building vintage, conditioned area, number of floors, and window-to-wall ratio, cooling system efficiency, type of heating, heating system efficiency, duct location, roof/ceiling insulation level, above-sheathing ventilation, radiant barrier, roof thermal mass, roof solar reflectance,more » roof thermal emittance, utility costs, roof pitch. The Roof Savings Caculator Suite adds utilities and website/web service and the integration of AtticSim with DOE-2.1E, with the end-result being Roof Savings Calculator.« less

  3. Roof Savings Calculator Suite

    SciTech Connect (OSTI)

    New, Joshua R; Garrett, Aaron; Erdem, Ender; Huang, Yu

    2013-11-22

    The software options currently supported by the simulation engine can be seen/experienced at www.roofcalc.com. It defaults all values to national averages with options to test a base-case (residential or commercial) building versus a comparison building with inputs for building type, location, building vintage, conditioned area, number of floors, and window-to-wall ratio, cooling system efficiency, type of heating, heating system efficiency, duct location, roof/ceiling insulation level, above-sheathing ventilation, radiant barrier, roof thermal mass, roof solar reflectance, roof thermal emittance, utility costs, roof pitch. The Roof Savings Caculator Suite adds utilities and website/web service and the integration of AtticSim with DOE-2.1E, with the end-result being Roof Savings Calculator.

  4. Total..........................................................

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

    ... Basements Basement in Single-Family Homes and Apartments in 2-4 Unit Buildings ... Attics Attic in Single-Family Homes and Apartments in 2-4 Unit Buildings ...

  5. IID Energy - Residential Energy Efficiency Rebate Program | Department...

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

    0.30sq ft Electric Attic Fan: 75 Solar Attic Fan: 125 Refrigerator: 75unit Room Air Conditioner: 100unit Dual Pane Windows: 2.00sq ft Variable Speed Pool Pumps:...

  6. 15 Minutes of Building Science

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

    As A System House As A System House As A System Air Leaks to Attic Air Leaks to Attic Anatomy of an Ice Dam House As A System House As A System House As A System * Build Tight - ...

  7. Analysis of Joint Masonry Moisture Content Monitoring

    SciTech Connect (OSTI)

    Ueno, Kohta

    2015-10-01

    Adding insulation to the interior side of walls of masonry buildings in cold (and wet) climates may cause performance and durability problems. Some concerns, such as condensation and freeze-thaw, have known solutions, but wood members embedded in the masonry structure will be colder (and potentially wetter) after an interior insulation retrofit. Moisture content & relative humidity were monitored at joist ends in historic mass brick masonry walls retrofitted with interior insulation in a cold climate (Zone 5A); data were collected from 2012-2015. Eleven joist ends were monitored in all four orientations. One limitation of these results is that the renovation is still ongoing, with limited wintertime construction heating and no permanent occupancy to date. Measurements show that many joists ends remain at high moisture contents, especially at north- and east-facing orientations, with constant 100% RH conditions at the worst cases. These high moisture levels are not conducive for wood durability, but no evidence for actual structural damage has been observed. Insulated versus non-insulated joist pockets do not show large differences. South facing joists have safe (10-15%) moisture contents. Given the uncertainty pointed out by research, definitive guidance on the vulnerability of embedded wood members is difficult to formulate. In high-risk situations, or when a very conservative approach is warranted, the embedded wood member condition can be eliminated entirely, supporting the joist ends outside of the masonry pocket.

  8. Building America Whole-House Solutions for New Homes: High-Performance...

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

    ducts located fully within conditioned space, ducts in sealed attics, and a ... in Hot-Dry Climates Ducts in Conditioned Space - Building America Top Innovation Vol. 9: ...

  9. New Whole-House Solutions Case Study: Pine Mountain Builders...

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

    ... heat out of attics, and preservation of mature trees to provide shade. * The heat pump ... "We think that our greatest success is our overall customer satisfaction. Our consumers ...

  10. New Whole-House Solutions Case Study: Schneider Homes, Inc.,...

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

    Contractors caulked all mechanical penetrations, foamed the bottom and top plates of the ... Gasketing attic access hatches, foaming bottom and top plates, and caulking all ...

  11. Columbia Gas of Virginia - Home Savings Rebate Program | Department...

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

    State Virginia Program Type Rebate Program Rebate Amount High Efficiency Gas Furnace: 300 High Efficiency Windows (Replacement): 1sq. ft. Attic Insulation...

  12. Tips: Sealing Air Leaks | Department of Energy

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

    electrical outlets, ceiling fixtures, attic hatches, and other places where air may leak. ... Use foam sealant on larger gaps around windows, baseboards, and other places where air may ...

  13. Building America Webinar: High-Performance Enclosure Strategies...

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

    Joe Lstiburek, Building Science Corporation, will discuss several advances in unvented roof technology to condition attics, including the use of diffusion venting and ...

  14. Building America Whole-House Solutions for Existing Homes: Inverted...

    Energy Savers [EERE]

    Building America Whole-House Solutions for Existing Homes: Inverted Attic Bulkhead for HVAC Ductwork This occupied test home received a modified truss system to accommodate ...

  15. TVA Partner Utilities - eScore Program | Department of Energy

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

    Program Info Sector Name Utility Website http:energyright.comresidentialescore.html State Alabama Program Type Rebate Program Rebate Amount Attic Insulation - 250Home (One...

  16. TVA Partner Utilities - eScore Program | Department of Energy

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

    Program Info Sector Name Utility Website http:energyright.comresidentialescore.html State Mississippi Program Type Rebate Program Rebate Amount Attic Insulation - 250...

  17. DOE ZERH Case Study: Mutual Housing California, Mutual Housing...

    Office of Scientific and Technical Information (OSTI)

    uninsulated salb on grade foundation; vented attic with R-44 blown fiberglass; air to water heat pumps. PNNL USDOE Office of Energy Efficiency and Renewable Energy (EERE),...

  18. TITLE AUTHORS SUBJECT SUBJECT RELATED DESCRIPTION PUBLISHER AVAILABILI...

    Office of Scientific and Technical Information (OSTI)

    walls uninsulated salb on grade foundation vented attic with R blown fiberglass air to water heat pumps PNNL USDOE Office of Energy Efficiency and Renewable Energy EERE Building...

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

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

    Science Corporation is a test implementation of an unvented tile roof assembly in ... to Share With Homeowners Unvented, Conditioned Attics - Building America Top Innovation

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

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

    Residential Integrated Solutions Collaborative, to determine the most cost-effective ... for Affordable Housing Attic Air Sealing Guide - Building America Top Innovation

  1. New Whole-House Solutions Case Study: Imagine Homes, San Antonio, Texas

    SciTech Connect (OSTI)

    none,

    2012-04-01

    The builder worked with IBACOS to build HERS-52 homes with spray foam-insulated attics and central fan-integrated supply ventilation

  2. New Whole-House Solutions Case Study: CDC Realty, Tucson, Arizona

    SciTech Connect (OSTI)

    none,

    2013-09-01

    This builder worked with Building Science Corporation to design HERS-54 homes with ducts in insulated attics, solar water heating, tight air sealing, and rigid foam exterior sheathing.

  3. HIA 2015 DOE Zero Energy Ready Home Case Study: Palo Duro Homes...

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

    ... Projected Annual Energy Cost Savings (compared to a ... In addition, homes are required to have solar electric panels ... attic areas before installing R-75 worth of blown ...

  4. Austin Energy - Free Home Energy Improvements Program | Department...

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

    pspresidentialofferings... State Texas Program Type Rebate Program Rebate Amount Free: Attic insulation Minor duct repair and sealing Caulking around plumbing penetrations...

  5. Sheltering in Place | Y-12 National Security Complex

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

    everyone inside (including pets). Close all doors and windows. Turn off and close all ventilation systems, including: Air conditioning Attic & exhaust fans Furnaces Fireplace...

  6. Building America Top Innovations Hall of Fame Profile … Unvented...

    Energy Savers [EERE]

    ... * Disaster Resistance - Roofs over unvented attics are ... rain and better protects metal connectors in the roof ... roof deck (to keep its temperature above 45F throughout ...

  7. Weatherization Assistance Program: Spurring Innovation, Increasing...

    Energy Savers [EERE]

    WAP has helped spur innovation in residential energy efficiency and a national ... These include developing more efficient window coverings and attic insulation methods that ...

  8. Building America Efficient Solutions for Existing Homes Case...

    Energy Savers [EERE]

    sealing and insulating exterior walls and attic and installing new, efficient appliances. ... Building America Efficient Solutions for Existing Homes Case Study: Deep Energy Retrofit ...

  9. K Basins floor sludge retrieval system knockout pot basket fuel burn accident

    SciTech Connect (OSTI)

    HUNT, J.W.

    1998-11-11

    The K Basins Sludge Retrieval System Preliminary Hazard Analysis Report (HNF-2676) identified and categorized a series of potential accidents associated with K Basins Sludge Retrieval System design and operation. The fuel burn accident was of concern with respect to the potential release of contamination resulting from a runaway chemical reaction of the uranium fuel in a knockout pot basket suspended in the air. The unmitigated radiological dose to an offsite receptor from this fuel burn accident is calculated to be much less than the offsite risk evaluation guidelines for anticipated events. However, because of potential radiation exposure to the facility worker, this accident is precluded with a safety significant lifting device that will prevent the monorail hoist from lifting the knockout pot basket out of the K Basin water pool.

  10. Ventilation rates per person and per unit floor area affect decision...

    Office of Scientific and Technical Information (OSTI)

    Resource Relation: Conference: 13th International Conference on Indoor Air Quality and Climate, Hong Kong, July 7 - 12, 2014 Research Org: Ernest Orlando Lawrence Berkeley National ...

  11. THE ROLE OF DEAD WOOD IN MAINTAINING ARTHROPOD DIVERSITY ON THE FOREST FLOOR.

    SciTech Connect (OSTI)

    Hanula, James L.; Horn, Scott; Wade, Dale D.

    2006-08-01

    AbstractDead wood is a major component of forests and contributes to overall diversity, primarily by supporting insects that feed directly on or in it. Further, a variety of organisms benefit by feeding on those insects. What is not well known is how or whether dead wood influences the composition of the arthropod community that is not solely dependent on it as a food resource, or whether woody debris influences prey available to generalist predators. One group likely to be affected by dead wood is ground-dwelling arthropods. We studied the effect of adding large dead wood to unburned and frequently burned pine stands to determine if dead wood was used more when the litter and understory plant community are removed. We also studied the effect of annual removal of dead wood from large (10-ha) plots over a 5-year period on ground-dwelling arthropods. In related studies, we examined the relationships among an endangered woodpecker that forages for prey on live trees, its prey, and dead wood in the forest. The results of these and other studies show that dead wood can influence the abundance and diversity of the ground-dwelling arthropod community and of prey available to generalist predators not foraging directly on dead trees.

  12. A Sea Floor Gravity Survey of the Sleipner Field to Monitor CO2 Migration

    SciTech Connect (OSTI)

    Mark Zumberge

    2011-09-30

    Carbon dioxide gas (CO{sub 2}) is a byproduct of many wells that produce natural gas. Frequently the CO{sub 2} separated from the valuable fossil fuel gas is released into the atmosphere. This adds to the growing problem of the climatic consequences of greenhouse gas contamination. In the Sleipner North Sea natural gas production facility, the separated CO{sub 2} is injected into an underground saline aquifer to be forever sequestered. Monitoring the fate of such sequestered material is important - and difficult. Local change in Earth's gravity field over the injected gas is one way to detect the CO{sub 2} and track its migration within the reservoir over time. The density of the injected gas is less than that of the brine that becomes displaced from the pore space of the formation, leading to slight but detectable decrease in gravity observed on the seafloor above the reservoir. Using equipment developed at Scripps Institution of Oceanography, we have been monitoring gravity over the Sleipner CO{sub 2} sequestration reservoir since 2002. We surveyed the field in 2009 in a project jointly funded by a consortium of European oil and gas companies and the US Department of Energy. The value of gravity at some 30 benchmarks on the seafloor, emplaced at the beginning of the monitoring project, was observed in a week-long survey with a remotely operated vehicle. Three gravity meters were deployed on the benchmarks multiple times in a campaign-style survey, and the measured gravity values compared to those collected in earlier surveys. A clear signature in the map of gravity differences is well correlated with repeated seismic surveys.

  13. BUILDING MATERIAL CHARACTERIZATION USING A CONCRETE FLOOR AND WALL CONTAMINATION PROFILING TECHNOLOGY

    SciTech Connect (OSTI)

    Aggarwal, Dr. S.,; Charters, G.; Thacker, Dr. D.

    2003-02-27

    Certain radioisotopes can penetrate concrete and contaminate the concrete well below the surface. The challenge is to determine the extent and magnitude of the contamination problem in real-time. The concrete profiling technology, TRUPROSM in conjunction with portable radiometric instrumentation produces a profile of radiological or chemical contamination through the material being studied. The data quality, quantity, and representativeness may be used to produce an activity profile from the hot spot surface into the material being sampled. This activity profile may then be expanded to ultimately characterize the facility and expedite waste segregation and facility closure at a reduced cost and risk. Performing a volumetric concrete or metal characterization safer and faster (without lab intervention) is the objective of this characterization technology. This way of determining contamination can save considerable time and money. Currently, concrete core bores are shipped to certified laboratories where the concrete residue is run through a battery of tests to determine the contaminants. The existing core boring operation volatilizes or washes out some of the contaminants (like tritium) and oftentimes cross-contaminates the area around the core bore site. The volatilization of the contaminants can lead to airborne problems in the immediate vicinity of the core bore. Cross-contamination can increase the contamination area and thereby increase the amount of waste generated. The goal is to avoid those field activities that could cause this type of release.

  14. Ventilation rates per person and per unit floor area affect decision...

    Office of Scientific and Technical Information (OSTI)

    Resource Type: Conference Resource Relation: Conference: 13th International Conference on Indoor Air Quality and Climate, Hong Kong, July 7 - 12, 2014 Research Org: Ernest Orlando ...

  15. PH Sensitive Polymers for Improving Reservoir Sweep and Conformance Control in Chemical Flooring

    SciTech Connect (OSTI)

    Mukul Sharma; Steven Bryant; Chun Huh

    2008-03-31

    There is an increasing opportunity to recover bypassed oil from depleted, mature oilfields in the US. The recovery factor in many reservoirs is low due to inefficient displacement of the oil by injected fluids (typically water). The use of chemical flooding methods to increase recovery efficiencies is severely constrained by the inability of the injected chemicals to contact the bypassed oil. Low sweep efficiencies are the primary cause of low oil recoveries observed in the field in chemical flooding operations even when lab studies indicate high oil recovery efficiency. Any technology that increases the ability of chemical flooding agents to better contact the remaining oil and reduce the amount of water produced in conjunction with the produced oil will have a significant impact on the cost of producing oil domestically in the US. This translates directly into additional economically recoverable reserves, which extends the economic lives of marginal and mature wells. The objective of this research project was to develop a low-cost, pH-triggered polymer for use in IOR processes to improve reservoir sweep efficiency and reservoir conformance in chemical flooding. Rheological measurements made on the polymer solution, clearly show that it has a low viscosity at low pH and exhibits a sudden increase in viscosity (by 2 orders of magnitude or more) at a pH of 3.5 to 4. This implies that the polymer would preferentially flow into zones containing water since the effective permeability to water is highest in these zones. As the pH of the zone increases due to the buffering capacity of the reservoir rock, the polymer solution undergoes a liquid to gel transition causing a sharp increase in the viscosity of the polymer solution in these zones. This allows operationally robust, in-depth conformance treatment of such water bearing zones and better mobility control. The rheological properties of HPAM solutions were measured. These include: steady-shear viscosity and viscoelastic behavior as functions of pH; shear rate; polymer concentration; salinity, including divalent ion effects; polymer molecular weight; and degree of hydrolysis. A comprehensive rheological model was developed for HPAM solution rheology in terms of: shear rate; pH; polymer concentration; and salinity, so that the spatial and temporal changes in viscosity during the polymer flow in the reservoir can be accurately modeled. A series of acid coreflood experiments were conducted to understand the geochemical reactions relevant for both the near-wellbore injection profile control and for conformance control applications. These experiments showed that the use hydrochloric acid as a pre-flush is not viable because of the high reaction rate with the rock. The use of citric acid as a pre-flush was found to be quite effective. This weak acid has a slow rate of reaction with the rock and can buffer the pH to below 3.5 for extended periods of time. With the citric acid pre-flush the polymer could be efficiently propagated through the core in a low pH environment i.e. at a low viscosity. The transport of various HPAM solutions was studied in sandstones, in terms of permeability reduction, mobility reduction, adsorption and inaccessible pore volume with different process variables: injection pH, polymer concentration, polymer molecular weight, salinity, degree of hydrolysis, and flow rate. Measurements of polymer effluent profiles and tracer tests show that the polymer retention increases at the lower pH. A new simulation capability to model the deep-penetrating mobility control or conformance control using pH-sensitive polymer was developed. The core flood acid injection experiments were history matched to estimate geochemical reaction rates. Preliminary scale-up simulations employing linear and radial geometry floods in 2-layer reservoir models were conducted. It is clearly shown that the injection rate of pH-sensitive polymer solutions can be significantly increased by injecting it at a pH below 3.5 (at a fixed bottom-hole pressure). This improvement in injectivity by a factor of 2 to 10 can have a significant impact on the economics of chemical flooding and conformance control applications. Simulation tools and experimental data presented in this report help to design and implement such polymer injection projects.

  16. Building America Case Study: Retrofit Measure for Embedded Wood Members in Insulated Mass Masonry Walls, Lawrence, Massachusetts

    SciTech Connect (OSTI)

    2015-10-01

    ?There are many existing buildings with load-bearing mass masonry walls, whose energy performance could be improved with the retrofit of insulation. However, adding insulation to the interior side of walls of such masonry buildings in cold (and wet) climates may cause performance and durability problems. Some concerns, such as condensation and freeze-thaw have known solutions. But wood members embedded in the masonry structure will be colder (and potentially wetter) after an interior insulation retrofit. Moisture content and relative humidity were monitored at joist ends in historic mass brick masonry walls retrofitted with interior insulation in a cold climate (Zone 5A); data were collected from 2012-2015. Eleven joist ends were monitored in all four orientations. One limitation of these results is that the renovation is still ongoing, with limited wintertime construction heating and no permanent occupancy to date. Measurements show that many joists ends remain at high moisture contents, especially at north- and east-facing orientations, with constant 100 percent RH conditions at the worst cases. These high moisture levels are not conducive for wood durability, but no evidence for actual structural damage has been observed. Insulated vs. non-insulated joist pockets do not show large differences. South facing joists have safe (10-15 percent) moisture contents. Given the uncertainty pointed out by research, definitive guidance on the vulnerability of embedded wood members is difficult to formulate. In high-risk situations, or when a very conservative approach is warranted, the embedded wood member condition can be eliminated entirely, supporting the joist ends outside of the masonry pocket.

  17. Capillary Break Beneath a Slab: Polyethylene Sheeting over Aggregate; Southwestern Pennsylvania (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-07-01

    This document provides content for three areas of the Building America Solution Center. First, "Insulating Closed Crawlspace Walls and Band Joist Area" describes how to install rigid foam insulation on the interior perimeter walls and band joist area in closed crawlspace foundations of homes. Second, "Removing Construction Debris from Flexible Ducts" describes how to clean flexible ducts after construction or major renovation of a home to remove debris resulting from building materials, particularly airborne dust and particulates. Third, images, CAD drawings, and a case study illustrate right and wrong ways to apply polyethylene sheeting over aggregate. Similarly, a CAD drawing is included that illustrates the use of a concrete slab over polyethylene.

  18. Performance of a Hot-Dry Climate Whole-House Retrofit

    SciTech Connect (OSTI)

    Weitzel, E.; German, A.; Porse, E.

    2014-06-01

    The Stockton house retrofit is a two-story tudor style single family deep retrofit in the hot-dry climate of Stockton, CA. The home is representative of a deep retrofit option of the scaled home energy upgrade packages offered to targeted neighborhoods under the pilot Large-Scale Retrofit Program (LSRP) administered by the Alliance for Residential Building Innovation (ARBI). Deep retrofit packages expand on the standard package by adding HVAC, water heater and window upgrades to the ducting, attic and floor insulation, domestic hot water insulation, envelope sealing, lighting and ventilation upgrades. Site energy savings with the deep retrofit were 23% compared to the pre-retrofit case, and 15% higher than the savings estimated for the standard retrofit package. Energy savings were largely a result of the water heater upgrade, and a combination of the envelope sealing, insulation and HVAC upgrade. The HVAC system was of higher efficiency than the building code standard. Overall the financed retrofit would have been more cost effective had a less expensive HVAC system been selected and barriers to wall insulation remedied. The homeowner experienced improved comfort throughout the monitored period and was satisfied with the resulting utility bill savings.

  19. Performance of a Hot-Dry Climate Whole-House Retrofit

    SciTech Connect (OSTI)

    Weitzel, E.; German, A.; Porse, E.

    2014-06-01

    The Stockton house retrofit is a two-story Tudor style single family deep retrofit in the hot-dry climate of Stockton, CA. The home is representative of a deep retrofit option of the scaled home energy upgrade packages offered to targeted neighborhoods under the pilot Large-Scale Retrofit Program (LSRP) administered by the Alliance for Residential Building Innovation (ARBI). Deep retrofit packages expand on the standard package by adding HVAC, water heater and window upgrades to the ducting, attic and floor insulation, domestic hot water insulation, envelope sealing, lighting and ventilation upgrades. Site energy savings with the deep retrofit were 23% compared to the pre-retrofit case, and 15% higher than the savings estimated for the standard retrofit package. Energy savings were largely a result of the water heater upgrade, and a combination of the envelope sealing, insulation and HVAC upgrade. The HVAC system was of higher efficiency than the building code standard. Overall the financed retrofit would have been more cost effective had a less expensive HVAC system been selected and barriers to wall insulation remedied. The homeowner experienced improved comfort throughout the monitored period and was satisfied with the resulting utility bill savings.

  20. Occupancy Simulation in Three Residential Research Houses

    SciTech Connect (OSTI)

    Boudreaux, Philip R; Gehl, Anthony C; Christian, Jeffrey E

    2012-01-01

    Three houses of similar floor plan are being compared for energy consumption. The first house is a typical builder house of 2400 ft2 (223 m2) in east Tennessee. The second house contains retrofits available to a home owner such as energy efficient appliances, windows and HVAC, as well as an insulated attic which contains HVAC duct work. The third house was built using optimum-value framing construction with photovoltaic modules and solar water heating. To consume energy researchers have set up appliances, lights, and plug loads to turn on and off automatically according to a schedule based on the Building America Research Benchmark Definition. As energy efficiency continues to be a focus for protecting the environment and conserving resources, experiments involving whole house energy consumption will be done. In these cases it is important to understand how to simulate occupancy so that data represents only house performance and not human behavior. The process for achieving automated occupancy simulation will be discussed. Data comparing the energy use of each house will be presented and it will be shown that the third house used 66% less and the second house used 36% less energy than the control house in 2010. The authors will discuss how energy prudent living habits can further reduce energy use in the third house by 23% over the average American family living in the same house.

  1. Building America Case Study: Performance of a Hot-Dry Climate Whole House Retrofit, Stockton, California (Fact Sheet)

    SciTech Connect (OSTI)

    ARBI

    2014-09-01

    The Stockton house retrofit is a two-story tudor style single family deep retrofit in the hot-dry climate of Stockton, CA. The home is representative of a deep retrofit option of the scaled home energy upgrade packages offered to targeted neighborhoods under the pilot Large-Scale Retrofit Program (LSRP) administered by the Alliance for Residential Building Innovation (ARBI). Deep retrofit packages expand on the standard package by adding HVAC, water heater and window upgrades to the ducting, attic and floor insulation, domestic hot water insulation, envelope sealing, lighting and ventilation upgrades. Site energy savings with the deep retrofit were 23% compared to the pre-retrofit case, and 15% higher than the savings estimated for the standard retrofit package. Energy savings were largely a result of the water heater upgrade, and a combination of the envelope sealing, insulation and HVAC upgrade. The HVAC system was of higher efficiency than the building code standard. Overall the financed retrofit would have been more cost effective had a less expensive HVAC system been selected and barriers to wall insulation remedied. The homeowner experienced improved comfort throughout the monitored period and was satisfied with the resulting utility bill savings.

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

    Broader source: Energy.gov [DOE]

    Building Science Corporation tested the effectiveness of various ventilation systems at two unoccupied, single-family lab homes at the University of Texas at Tyler. The only difference was that House 1 had a vented attic and House 2 had an unvented attic assembly.

  3. Building America Whole-House Solutions for New Homes: High-Performance Ducts in Hot-Dry Climates

    Broader source: Energy.gov [DOE]

    The Alliance for Residential Building Innovation worked with Pacific Gas & Electric Company to implement various high-performance duct strategies, including ducts located fully within conditioned space, ducts in sealed attics, and a “high-performance attic” that adds insulation to the roof deck of a normally vented attic.

  4. Fundamentals of Natural Gas and Species Flows from Hydrate Dissociation - Applications to Safety and Sea Floor Instability

    SciTech Connect (OSTI)

    Goodarz Ahmadi

    2006-09-30

    Semi-analytical computational models for natural gas flow in hydrate reservoirs were developed and the effects of variations in porosity and permeability on pressure and temperature profiles and the movement of a dissociation front were studied. Experimental data for variations of gas pressure and temperature during propane hydrate formation and dissociation for crushed ice and mixture of crushed ice and glass beads under laboratory environment were obtained. A thermodynamically consistent model for multiphase liquid-gas flows trough porous media was developed. Numerical models for hydrate dissociation process in one dimensional and axisymmetric reservoir were performed. The computational model solved the general governing equations without the need for linearization. A detail module for multidimensional analysis of hydrate dissociation which make use of the FLUENT code was developed. The new model accounts for gas and liquid water flow and uses the Kim-Boshnoi model for hydrate dissociation.

  5. Predictions of VRF on a Langmuir Probe under the RF Heating Spiral on the Divertor Floor on NSTX-U

    SciTech Connect (OSTI)

    Hosea, J C; Perkins, R J; Jaworski, M A; Kramer, G J; Ahn, J-W

    2014-07-01

    RF heating deposition spirals are observed on the divertor plates on NSTX as shown in for a NB plus RF heating case. It has been shown that the RF spiral is tracked quite well by the spiral mapping of the strike points on the divertor plate of magnetic field lines passing in front of the high harmonic fast wave (HHFW) antenna on NSTX. Indeed, both current instrumented tiles and Langmuir probes respond to the spiral when it is positioned over them. In particular, a positive increment in tile current (collection of electrons) is obtained when the spiral is over the tile. This current can be due to RF rectification and/or RF heating of the scrape off layer (SOL) plasma along the magnetic field lines passing in front of the the HHFW antenna. It is important to determine quantitatively the relative contributions of these processes. Here we explore the properties of the characteristics of probes on the lower divertor plate to determine the likelyhood that the primary cause of the RF heat deposition is RF rectification.

  6. Analysis in Support of the Radiant Barrier Fact Sheet 2010 Update

    SciTech Connect (OSTI)

    Stovall, Therese K; Shrestha, Som S; Arimilli, Rao V; Yarbrough, David W; Pearson, Thomas

    2010-01-01

    Quantifying the benefits of radiant barriers is complex because the benefits depend upon the climate, attic geometry, duct arrangements, and other building parameters. Homeowners, however, require simplified guidance regarding building envelope options, even those options that seem to have no simple answers. An extensive parametric evaluation of radiant barrier installation alternatives was made using a newly expanded and benchmarked version of an attic simulation program. To complement this anal- ysis, a detailed numerical analysis of radiation heat transfer within the attic and within the small space bounded by the rafters and the sheathing was completed. The results provide guidance for homeowners and builders.

  7. The North Carolina Field Test: Field performance of the preliminary version of an advanced weatherization audit for the Department of Energy`s Weatherization Assistance Program

    SciTech Connect (OSTI)

    Sharp, T.R.

    1994-06-01

    The field performance of weatherizations based on a newly-developed advanced technique for selecting residential energy conservation measures was tested alongside current Retro-Tech-based weatherizations in North Carolina. The new technique is computer-based and determines measures based on the needs of an individual house. In addition, it recommends only those measures that it determines will have a benefit-to-cost ratio greater than 1 for the house being evaluated. The new technique also considers the interaction of measures in computing the benefit-to-cost ratio of each measure. The two weatherization approaches were compared based on implementation ease, measures installed, labor and cost requirements, and both heating and cooling energy savings achieved. One-hundred and twenty houses with the following characteristics participated: the occupants were low-income, eligible for North Carolina`s current weatherization program, and responsible for their own fuel and electric bills. Houses were detached single-family dwellings, not mobile homes; were heated by kerosene, fuel oil, natural gas, or propane; and had one or two operating window air conditioners. Houses were divided equally into one control group and two weatherization groups. Weekly space heating and cooling energy use, and hourly indoor and outdoor temperatures were monitored between November 1989 and September 1990 (pre-period) and between December 1990 and August 1991 (post-period). House consumption models were used to normalize for annual weather differences and a 68{degrees}F indoor temperature. Control group savings were used to adjust the savings determined for the weatherization groups. The two weatherization approaches involved installing attic and floor insulations in near equivalent quantities, and installing storm windows and wall insulation in drastically different quantities. Substantial differences also were found in average air leakage reductions for the two weatherization groups.

  8. Remediation of Occupied Commercial Property Subject to Widespread Radium-226 Contamination - Confidential Client in the South-West of England - 12570

    SciTech Connect (OSTI)

    Sinclair, Philip

    2012-07-01

    AMEC was contacted by a company that managed commercial office space in 2010. High Rn- 222 measurements had been observed throughout the facility and the landlord had been advised to commission a radiological survey of the site. The site had been purchased by the client in the 1990's. Initial desk studies found that the building had operated for around 50 years as a compass factory. Non-intrusive investigation identified widespread Ra-226 contamination. Ra-226 was found in the fabric of the building, in attic spaces, buried under floor boards and underlying car parks. Intrusive investigation was undertaken to estimate volume(s) of waste, waste categories, activity concentrations and the total inventory of radioactive materials on site. This work identified the presence of 180 GBq of Ra-226 on site. A programme of work is currently underway to remediate the site tackling areas posing the greatest risk to site occupants as a priority. We have worked closely with Regulators, our client, and tenants, to decontaminate the fabric of the building whilst areas of the building remain occupied. The radiological risk, from irradiation, ingestion and inhalation (of Ra-226 and Rn- 222) has been assessed before, during and after intervention to minimise the risks to site occupants. Tenants were moved from areas of unacceptable radiological risk to areas unaffected by the presence of radioactive materials. Rn-222 mitigation measures were installed during the remedial operations to minimise the hazard from Rn-222 that was liberated as a result of decontamination activities. Decontamination techniques were required to be sympathetic to the building as the ageing structure was in danger of collapse during several phases of work. The first phase of remediation is now complete and the decontaminated building is being returned for use as office space. The radiological risks have been significantly reduced and, in areas where decontamination was not possible (e.g. due to concerns over

  9. DOE Zero Energy Ready Home Case Study: Weiss Building & Development...

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

    Case study of a DOE Zero Energy Ready Home in River Forest, IL, that scored HERS 17 without PV. This 4,763-square-foot custom passive house has R-54 ICF walls, a vented attic with ...

  10. DOE Zero Energy Ready Home Case Study: Habitat for Humanity South Sarasota County, Nokomis, FL

    Broader source: Energy.gov [DOE]

    Case study of a DOE Zero Energy Ready affordable home in Nokomis, FL, achieves a HERS 51 without PV. The 1,290-ft2 1-story home has foam-filled concrete block walls, a sealed attic insulated under...

  11. Table HC1.2.2 Living Space Characteristics by Average Floorspace

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

    ... "Basement (in Single-Family Homes and" "Apartments in 2-4 Unit ...926,828,474,427,382,219 "Attic (in Single-Family Homes and" "Apartments in 2-4 Unit ...

  12. DOE Zero Energy Ready Home Case Study: StreetScape Development...

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

    with R-20 of open-cell spray foam, R-49 open-cell spray-foam sealed attic, an HRV, and a tankless water heater for hydro coil furnace with high-velocity, small-diameter ducts. ...

  13. DOE Zero Energy Ready Home Case Study: Weiss Building & Development...

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

    has advanced framed walls with R-23 dense-packed fiberglass plus R-13 rigid polyiso, a sealed attic with open-cell spray foam, a pier foundation, and 95% efficient gas furnace. ...

  14. Text-Alternative Version of High Performance Space Conditioning...

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

    ... That red box is indicating in zone 4 the level of air ... We've got the secondary bedroom wing on the bottom of the ... due to HVAC operation or conditions in the attic or both. ...

  15. Tips: Air Ducts | Department of Energy

    Energy Savers [EERE]

    Tips: Air Ducts Tips: Air Ducts Air ducts: out of sight, out of mind. The unsealed ducts in your attic and crawlspaces lose air, and uninsulated ducts lose heat -- wasting energy ...

  16. Tips: Air Ducts | Department of Energy

    Energy Savers [EERE]

    Air Ducts Tips: Air Ducts Air ducts: out of sight, out of mind. The unsealed ducts in your attic and crawlspaces lose air, and uninsulated ducts lose heat -- wasting energy and ...

  17. New Whole-House Solutions Case Study: Tommy Williams Homes, Longleaf...

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

    Ladder T framing provides extra room for insulation in the walls, which are filled with blown fiberglass; R-30 blown fiberglass covers the ceiling deck of the vented attic. The ...

  18. DOE Zero Energy Ready Home Case Study: BPC Green Builders, Danbury...

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

    outside walls, R-55 of rigid EPS foam under the slab, R-86 of blown cellulose in the attic, triple-pane windows, and a single ductless heat pump to heat and cool the entire home. ...

  19. DOE Zero Energy Ready Home Case Study: Addison Homes, Cobbler...

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

    inch rigid foam, a sealed conditioned crawl space insulated on inside with 2 inches poly iso, a vented attic with R-38 blown fiberglass, a central heat pump with fresh air intake. ...

  20. DOE Zero Energy Ready Home Case Study: Charles Thomas Homes,...

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

    stud walls with R-23 blown fiberglass, with R-20 around slab, R-38 under slab; a vented attic with R-100 blown cellulose; 95% AFUE furnace, 14 SEER AC, ERV; heat pump water heater. ...

  1. DOE Zero Energy Ready Home Case Study: KB Home, Double ZeroHouse...

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

    unvented attic with R-38 blown fiberglass netted to underside of roof deck; 19 SEER heat pump; heat pump water heater; 100% LED. PDF icon BAZEHKBHomeSG10-5-15.pdf More ...

  2. DOE Zero Energy Ready Home Case Study: Manatee County Habitat...

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

    HERS 53 without PV, HERS 23 with PV. This 1,143-square-foot affordable home has R-23 ICF walls, a spray-foamed sealed attic, solar hot water, and a ducted mini-split heat pump. ...

  3. DOE Zero Energy Ready Home: Near Zero Maine Home II, Vassalboro...

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

    R-70 cellulose in the attic, extensive air sealing, a mini-split heat pump, an heat recovery ventilator, solar water heating, LED lighting, 3.9 kWh PV, and triple-pane windows. ...

  4. DOE Zero Energy Ready Home Case Study: KB Home, San Marcos, CA...

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

    home has R-20 advanced framed walls with batts plus rigid foam sheathing, an air-source heat pump for central air in sealed attic, solar water heating and 100% LED lighting. ...

  5. Building America Efficient Solutions for Existing Homes Case...

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

    The attic was sealed and insulated with spray foam to house a new heat pump. PDF icon Case Study: Habitat for Humanity South Sarasota County - Venice, Florida More Documents & ...

  6. DOE Zero Energy Ready Home Case Study: Amaris Homes, Fishers...

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

    around slab, a vented attic with with 2" ccsf plus R-15 blown cellulose, a central heat pump and HRV. PDF icon DOE Zero Energy Ready Home Case Study: Amaris Homes, Vadnais ...

  7. DOE Tour of Zero: The MassDevelopment Production House by Transformati...

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

    at the eaves and valleys. The vented attic is insulated with 18 inches of blown cellulose on the ceiling deck. 3 of 7 This certified DOE Zero Energy Ready Home is one of...

  8. The Equivalent Thermal Resistance of Tile Roofs with and without Batten Systems

    SciTech Connect (OSTI)

    Miller, William A

    2013-01-01

    Clay and concrete tile roofs were installed on a fully instrumented attic test facility operating in East Tennessee s climate. Roof, attic and deck temperatures and heat flows were recorded for each of the tile roofs and also on an adjacent attic cavity covered with a conventionally pigmented and direct-nailed asphalt shingle roof. The data were used to benchmark a computer tool for simulation of roofs and attics and the tool used to develop an approach for computing an equivalent seasonal R-value for sub-tile venting. The approach computed equal heat fluxes through the ceilings of roofs having different combinations of surface radiation properties and or building constructions. A direct nailed shingle roof served as a control for estimating the equivalent thermal resistance of the air space. Simulations were benchmarked to data in the ASHRAE Fundamentals for the thermal resistance of inclined and closed air spaces.

  9. DOE Zero Energy Ready Home Case Study: Promethean Homes, Charlottesvil...

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

    on foundation walls, R-70 blown cellulose in the vented attic, triple-pane windows, two slim-duct heat pumps with short ducts for heating and cooling, and a heat-pump water heater. ...

  10. New Whole-House Solutions Case Study: Treasure Homes, Sacramento, California

    SciTech Connect (OSTI)

    none,

    2013-09-01

    The builder worked with SMUD, DOE, NREL, and ConSol to build HERS-54 homes with high-efficiency HVAC, ducts buried in attic insulation, SmartVent cooling, and rooftop PV..

  11. DOE Tour of Zero: The Hale Plan by New Town Builders | Department...

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

    over the outer walls for full-depth attic insulation. 8 of 8 High-efficiency advanced framing techniques reduce the lumber use while providing more room for insulation. This...

  12. Solar Dynamics | Open Energy Information

    Open Energy Info (EERE)

    Dynamics Jump to: navigation, search Name: Solar Dynamics Place: Ottumwa, Iowa Zip: IA 52501 Sector: Solar Product: Solar Dynamics is a US-based solar powered attic roof vents...

  13. DOE ZERH Webinar: Design Strategies for Ducts in Conditioned...

    Energy Savers [EERE]

    ... The image on the left is a view of the scissor truss from the attic side looking down at the membrane that was installed as the air barrier. And the image on the right is what the ...

  14. DOE Zero Energy Ready Home Case Study: Preferred Builders, Old...

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

    home has advanced framed walls with R-24 blown cellulose plus R-7.5 EPS rigid foam, membrane-coated OSB, a closed-cell spray foamed attic, R-13 closed-cell spray foam under the ...

  15. Building America Top Innovations 2013 Profile … Buried and Encapsulat...

    Energy Savers [EERE]

    of ducts in conditioned space. For years builders have designed their homes with the HVAC ducts in the attic. There is plenty of space up there to run the ducts, and if ...

  16. Building America Whole-House Solutions for New Homes: Imagine...

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

    Case study of Imagine Homes, who worked with the Building America research partner IBACOS to build HERS-52 homes with spray foam-insulated attics and central fan-integrated supply ...

  17. Home Energy Score Update: New Simulation Training and Requirements...

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

    ... So we would go choose our unconditioned attic, and enter our ... But in terms of, I think they were asking how do we evaluate ... But we are in a continuous search in identifying new ...

  18. Buildings Energy Data Book: 2.2 Residential Sector Characteristics

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

    Note(s): Source(s): 1) Total Square footage includes attic, garage, and basement square footage. EIA, 2005 Residential Energy Consumption Survey, Oct. 2008. Share of Average Home ...

  19. Building America Whole-House Solutions for New Homes: Treasure Homes, Sacramento, California

    Broader source: Energy.gov [DOE]

    Case study of Treasure Homes, who worked with SMUD, DOE, NREL, and ConSol to build HERS-54 homes with high-efficiency HVAC, ducts buried in attic insulation, SmartVent cooling, and rooftop PV.

  20. Better Buildings Neighborhood Program Peer Exchange Call: Incorporatin...

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

    ... have found that attic air sealing around chimneys can be difficult for DIY'ers. 312012 16 Discussion: OutreachMarketing * Vermont did specific marketing for the DIY program. ...

  1. DOE ZERH Case Study: Mutual Housing California, Mutual Housing...

    Office of Scientific and Technical Information (OSTI)

    by 35%, with 2x4 16" on center walls with R-21 fiberglass bass walls, uninsulated salb on grade foundation; vented attic with R-44 blown fiberglass; air to water heat pumps. ...

  2. Building America Whole-House Solutions for New Homes: CDC Realty Inc., Tucson, Arizona

    Broader source: Energy.gov [DOE]

    Case study of CDC Realty Inc. who worked with Building America research partner Building Science Corporation to design HERS-54 homes with ducts in insulated attics, solar water heating, tight air sealing, and rigid foam exterior sheathing.

  3. Minnesota Member Lists the Twin Cities' First Energy Fit Certified...

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

    CEE upgraded the 1,774-square-foot house, built in 1952, with a high-efficiency furnace and water heater, attic insulation, and energy-efficient lighting to earn the program's ...

  4. U.S. Threatened by Leaky Ducks! | Department of Energy

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

    air conditioner, or heat pump, to the rooms to supply the warm and chilled air, can leak the conditioned air into the attic or crawlspace. You'll have to make up for that lost...

  5. Building America Top Innovations 2013 Profile Buried and Encapsulated Ducts

    SciTech Connect (OSTI)

    2013-09-01

    In this innovation profile, CARB research shows HVAC ducts that are encapsulated in closed-cell spray foam and buried in blown insulation in a vented attic meet the code requirements for ducts in conditioned space.

  6. New Whole-House Solutions Case Study: Tindall Homes, Columbus, New Jersey

    SciTech Connect (OSTI)

    none,

    2012-04-01

    The builder worked with IBACOS to build 20 HERS-58 homes with R-49 mixed attic insulation, poly-iso foam in advanced framed walls, precast concrete basement walls with rigid foam, tight airsealing, and HRV

  7. DOE Zero Energy Ready Home Case Study: United Way of Long Island...

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

    dense packed cellulose and 1.5" polyiso rigid; basement with 2.5: polyiso on interior; unvented attic with R-48 ocsf under roof deck; ERV tied to wall hung boiler with hydro coil. ...

  8. ,"Housing Units1","Average Square Footage Per Housing Unit",...

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

    ... Unconditioned and unfinished areas in attics and attached garages are excluded. 3Housing units are classified as urban or rural using definitions created by the U.S. Census Bureau, ...

  9. Weatherization Assistance for the Hottest Days | Department of...

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

    our use of the central air conditioner. Since I live in a condo, I can't control things like improving insulation or installing attic fans, so I focus on the smaller things. ...

  10. Aerogel Insulation: The Materials Science of Empty Space

    Broader source: Energy.gov [DOE]

    Empty space can be good, like a blank canvas for an artist, or it can be bad, like an attic without insulation for a homeowner.  But when a technological breakthrough provides just the right amount...

  11. DOE Zero Energy Ready Home Case Study: United Way of Long Island...

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

    unvented attic with R-48 ocsf under roof deck; ERV tied to wall hung boiler with hydro coil. DOE Zero Energy Ready Home Case Study: United Way of Long Island Housing...

  12. Southern Power District- Residential Energy Efficiency Rebate Programs

    Broader source: Energy.gov [DOE]

    Southern Power District (SPD) offers rebates for the purchase and installation of efficient air source heat pumps, water heaters, attic insulation, LED lighting, and HVAC tune-ups. All equipment...

  13. Lakeland Electric- Residential Conservation Rebate Program

    Broader source: Energy.gov [DOE]

    Lakeland Electric offers a conservation program for residential customers to save energy in homes. Rebates are available for Heat Pumps, HVAC tune-ups, attic insulation upgrades, and Energy Star...

  14. Tips: Air Ducts | Department of Energy

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

    of sight, out of mind. The unsealed ducts in your attic and crawlspaces lose air, and uninsulated ducts lose heat -- wasting energy and money. Air ducts: out of sight, out of mind. ...

  15. Building America Whole-House Solutions for New Homes: Tindall...

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

    Case study of Tindall Homes who worked with Building America research team IBACOS to build 20 HERS-58 homes with R-49 mixed attic insulation, poly-iso foam in advanced framed ...

  16. Field Evaluation of Four Novel Roof Designs for Energy-Efficient Manufactured Homes

    SciTech Connect (OSTI)

    Levy, E.; Dentz, J.; Ansanelli, E.; Barker, G.; Rath, P.; Dadia, D.

    2015-12-01

    A five-bay roof test structure was built, instrumented and monitored in an effort to determine through field testing and analysis the relative contributions of select technologies toward reducing energy use in new manufactured homes. The roof structure in Jamestown, California was designed to examine how differences in roof construction impact space conditioning loads, wood moisture content and attic humidity levels. Conclusions are drawn from the data on the relative energy and moisture performance of various configurations of vented and sealed attics.

  17. Insulation Materials | Department of Energy

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

    Materials Insulation Materials Cellulose, a fiber insulation material with a high recycled content, is blown into a home attic. | Photo courtesy of Cellulose Insulation Manufacturers Association. Cellulose, a fiber insulation material with a high recycled content, is blown into a home attic. | Photo courtesy of Cellulose Insulation Manufacturers Association. Blown-in fiberglass insulation thoroughly fills the stud cavities in this home. | Photo courtesy of Bob Hendron, NREL. Blown-in fiberglass

  18. Insurance Provider Contacts

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

    Materials Insulation Materials Cellulose, a fiber insulation material with a high recycled content, is blown into a home attic. | Photo courtesy of Cellulose Insulation Manufacturers Association. Cellulose, a fiber insulation material with a high recycled content, is blown into a home attic. | Photo courtesy of Cellulose Insulation Manufacturers Association. Blown-in fiberglass insulation thoroughly fills the stud cavities in this home. | Photo courtesy of Bob Hendron, NREL. Blown-in fiberglass

  19. Buried and Encapsulated Ducts - Building America Top Innovation |

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

    Department of Energy Buried and Encapsulated Ducts - Building America Top Innovation Buried and Encapsulated Ducts - Building America Top Innovation photo of worker blowing insulation on ducts in an attic. Ductwork installed in unconditioned attics can significantly increase the heating and cooling costs of homes, resulting in thermal losses of 10%-45% of total space conditioning energy use. To address this problem, Building America researchers from the Consortium for Advanced Residential

  20. Buildings Energy Data Book: 1.6 Embodied Energy of Building Assemblies

    Buildings Energy Data Book [EERE]

    4 Embodied Energy of Commercial Wood-Based Roof Assemblies in the U.S. Embodied Energy CO2 Equivalent (MMBtu/SF) (1) Emissions (lbs/SF) Glulam Joist with Plank Decking with EPDM membrane 0.16 11.05 with PVC membrane 0.25 20.70 with Modified bitumen membrane 0.25 21.78 with 4-Ply built-up roofing 0.43 41.49 with Steel Roofing 0.10 10.05 Wood I-Joist with WSP Decking with EPDM membrane 0.14 10.10 with PVC membrane 0.23 19.75 with Modified bitumen membrane 0.24 20.81 with 4-Ply built-up roofing

  1. LANL Sustainable Design Guide - Appendices

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

    for Buildings Except Low-Rise Residential Buildings." ... Select durable window assemblies Use pan ... 9 - Flooring & floor coverings Specify wood flooring ...

  2. Investigation of the proposed solar-driven moisture phenomenon in asphalt shingle roofs

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

    Boudreaux, Philip; Pallin, Simon; Jackson, Roderick

    2016-01-19

    We report that unvented, sealed or conditioned attics are an energy efficiency measure to reduce the thermal load of the home and decrease the space conditioning energy consumption. This retrofit is usually done by using spray polyurethane foam underneath the roof sheathing and on the gables and soffits of an attic to provide a thermal and air barrier. Unvented attics perform well from this perspective but from a moisture perspective sometimes the unvented attic homes have high interior humidity or moisture damage to the roof. As homes become more air tight and energy efficient, an understanding of the hygrothermal dynamicsmore » of the home become more important. One proposed reason for high unvented attic humidity has been that moisture can come through the asphalt shingle roof system and increase the moisture content of the roof sheathing and attic air. This has been called solar driven moisture. Oak Ridge National Laboratory (ORNL) investigated this proposed phenomenon by examining the physical properties of a roof and the physics required for the phenomenon. Results showed that there are not favorable conditions for solar driven moisture to occur. ORNL also conducted an experimental study on an unvented attic home and compared the humidity below the roof sheathing before and after a vapor impermeable underlayment was installed. There was no statistically significant difference in absolute humidity before and after the vapor barrier was installed. Finally, the outcome of the theoretical and experimental study both suggest that solar driven moisture does not occur in any significant amount.« less

  3. Symmetry or asymmetry -- Comfort is the question. (A study of the second floor of the west office wing of the Water Pollution Control Laboratory in Portland, Oregon.)

    SciTech Connect (OSTI)

    Gonzalez, A.F.; Gaba, P.; Kowitanupong, C.

    1999-07-01

    This article explores the effects of an asymmetric distribution of building components, and their relation to human comfort. The studied building was the Water Pollution Control Laboratory in Portland, Oregon. This project, designed by the Miller/Hull Partnership, provides the perfect conditions to do such a study since it has very different ceiling heights within the same space, and an asymmetric distribution of the fenestration as well. Findings show that: (a) Variable ceiling heights affect the quantity of daylight received, and also affect the quality and distribution of electric light; (b) An asymmetric distribution of the fenestration creates very different conditions in both the luminous and thermal environments; and (c) The design of lighting and HVAC systems must take into consideration variations in ceiling height and the position of the fenestration into the space.

  4. Energy Information Administration (EIA)- About the Commercial Buildings

    Gasoline and Diesel Fuel Update (EIA)

    Energy Consumption Survey (CBECS) 0. Number of floors, number of buildings and floorspace, 2012 Released: May 2016 Number of buildings (thousand) Total floorspace (million square feet) All buildings One floor Two floors Three floors Four to nine floors Ten or more floors All buildings One floor Two floors Three floors Four to nine floors Ten or more floors All buildings 5,557 3,836 1,158 374 177 13 87,093 39,809 20,206 8,140 13,535 5,404 Building floorspace (square feet) 1,001 to 5,000 2,777

  5. Sustainable Retrofit of Residential Roofs Using Metal Roofing Panels, Thin-Film Photovoltaic Laminates, and PCM Heat Sink Technology

    SciTech Connect (OSTI)

    Kosny, Jan; Miller, William A; Childs, Phillip W; Biswas, Kaushik

    2011-01-01

    During September-October 2009, research teams representing Metal Construction Association (the largest North American trade association representing metal building manufacturers, builders, and material suppliers), CertainTeed (one of the largest U.S. manufacturers of thermal insulation and building envelope materials), Unisolar (largest U.S. producer of amorphous silicone photo-voltaic (PV) laminates), Phase Change Energy (manufacturer of bio-based PCM), and Oak Ridge National Laboratory (ORNL) installed three experimental attics utilizing different roof retrofit strategies in the ORNL campus. The main goal of this project was experimental evaluation of a newly-developed sustainable re-roofing technology utilizing amorphous silicone PV laminates integrated with metal roof and PCM heat sink. The experimental attic with PV laminate was expected to work during the winter time as a passive solar collector with PCM storing solar heat, absorbed during the day, and increasing overall attic air temperature during the night.

  6. TASK 2.5.4 DEVELOPMENT OF AN ENERGY SAVINGS CALCULATOR

    SciTech Connect (OSTI)

    Miller, William A; New, Joshua Ryan; Desjarlais, Andre Omer; Huang, Joe; Erdem, Ender; Ronnen, Levinson

    2010-03-01

    California s major energy utilities and the California Energy Commission (CEC) are seeking to allocate capital that yields the greatest return on investment for energy infrastructure that meets any part of the need for reliable supplies of energy. The utilities are keenly interested in knowing the amount of electrical energy savings that would occur if cool roof color materials are adopted in the building market. To meet this need the Oak Ridge National Laboratory and the Lawrence Berkeley National Laboratory (LBNL) have been collaborating on a Public Interest Energy Research (PIER) project to develop an industry-consensus energy-savings calculator. The task was coordinated with an ongoing effort supported by the DOE to develop one calculator to achieve both the DOE and the EPA objectives for deployment of cool roof products. Recent emphasis on domestic building energy use has made the work a top priority by the Department of Energy s (DOE) Building Technologies Program. The Roof Savings Calculator (RSC) tool is designed to help building owners, manufacturers, distributors, contractors and practitioners easily run complex simulations. The latest web technologies and usability design were employed to provide an easy input interface to an annual simulation of hour-by-hour, whole-building performance using the world-class simulation tools DOE-2.1E and AtticSim. Building defaults were assigned based on the best available statistical evidence and can provide energy and cost savings after the user selects nothing more than the building location. A key goal for the tool is to promote the energy benefits of cool color tile, metal and asphalt shingle roof products and other energy saving systems. The RSC tool focuses on applications for the roof and attic; however, the code conducts a whole building simulation that puts the energy and heat flows of the roof and attic into the perspective of the whole house. An annual simulation runs in about 30 sec. In addition to cool

  7. Comparison of Software Models for Energy Savings from Cool Roofs

    SciTech Connect (OSTI)

    New, Joshua Ryan; Miller, William A; Huang, Yu; Levinson, Ronnen

    2014-01-01

    A web-based Roof Savings Calculator (RSC) has been deployed for the United States Department of Energy as an industry-consensus tool to help building owners, manufacturers, distributors, contractors and researchers easily run complex roof and attic simulations. This tool employs modern web technologies, usability design, and national average defaults as an interface to annual simulations of hour-by-hour, whole-building performance using the world-class simulation tools DOE-2.1E and AtticSim in order to provide estimated annual energy and cost savings. In addition to cool reflective roofs, RSC simulates multiple roof and attic configurations including different roof slopes, above sheathing ventilation, radiant barriers, low-emittance roof surfaces, duct location, duct leakage rates, multiple substrate types, and insulation levels. A base case and energy-efficient alternative can be compared side-by-side to estimate monthly energy. RSC was benchmarked against field data from demonstration homes in Ft. Irwin, California; while cooling savings were similar, heating penalty varied significantly across different simulation engines. RSC results reduce cool roofing cost-effectiveness thus mitigating expected economic incentives for this countermeasure to the urban heat island effect. This paper consolidates comparison of RSC s projected energy savings to other simulation engines including DOE-2.1E, AtticSim, Micropas, and EnergyPlus, and presents preliminary analyses. RSC s algorithms for capturing radiant heat transfer and duct interaction in the attic assembly are considered major contributing factors to increased cooling savings and heating penalties. Comparison to previous simulation-based studies, analysis on the force multiplier of RSC cooling savings and heating penalties, the role of radiative heat exchange in an attic assembly, and changes made for increased accuracy of the duct model are included.

  8. Field Evaluation of Four Novel Roof Designs for Energy-Efficient Manufactured Homes

    SciTech Connect (OSTI)

    Levy, E.; Dentz, J.; Ansanelli, E.; Barker, G.; Rath, P.; Dadia, D.

    2015-12-03

    "9A five-bay roof test structure was built, instrumented and monitored in an effort to determine through field testing and analysis the relative contributions of select technologies toward reducing energy use in new manufactured homes. The roof structure in Jamestown, California was designed to examine how differences in roof construction impact space conditioning loads, wood moisture content and attic humidity levels. Conclusions are drawn from the data on the relative energy and moisture performance of various configurations of vented and sealed attics.

  9. Cooling with a Whole House Fan | Department of Energy

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

    Heat & Cool » Home Cooling Systems » Cooling with a Whole House Fan Cooling with a Whole House Fan This whole-house fan is installed on the ceiling between the attic and living space. The louvers close when the fan is not operating. | Photo courtesy of Allison Casey. This whole-house fan is installed on the ceiling between the attic and living space. The louvers close when the fan is not operating. | Photo courtesy of Allison Casey. Whole house cooling using a whole house fan can

  10. #AskEnergySaver: Insulation | Department of Energy

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

    Insulation #AskEnergySaver: Insulation February 21, 2014 - 5:20pm Addthis One of the most cost-effective ways to improve your home's comfort is to add insulation to your attic. <a href="/node/366805">Learn more about insulation</a>. | Photo courtesy of Dennis Schroeder, National Renewable Energy Lab. One of the most cost-effective ways to improve your home's comfort is to add insulation to your attic. Learn more about insulation. | Photo courtesy of Dennis Schroeder,

  11. Best available control technology (BACT) equivalent for the control of volatile organic emissions from paint dipping operations

    SciTech Connect (OSTI)

    Blankenship, W.R.; Pugh, C.W. Jr.

    1999-07-01

    This paper provides details of a study conducted to demonstrate an equivalent method of Best Available Control Technology (BACT) compliance for volatile organic emissions from dip coating of certain miscellaneous metal parts. The study was proposed to show that the total volatile organic compound (VOC) emissions from 3.8 lb of VOC/gallon coating formulations were no greater than the total VOC emissions from 3.5 lb/gallon formulations used under the same conditions for coating steel joists. The presumptive BACT standard enforced by the Virginia Department of Environmental Quality (DEQ) for dip coating of steel joists is 3.5 lb/gallon. The requirement of 3.5 lb/gallon was derived from the US Environmental Protection Agency Guideline Series Control of Volatile Organic Emissions from Existing Stationary Sources--Volume 6: Surface Coating of Miscellaneous Metal Parts and Products. On June 5, 1998 the source completed a 12 month, full scale comparison study under a consent order with the Virginia DEQ. During the study period, the source made daily measurements of product produced, paint used, and emissions from the control and test paint tanks, and reported data to EPA and the DEQ every two months. The study concluded that a 26 percent reduction in paint usage and a 20 percent reduction in emissions was achieved in the test tanks using a 3.8 lb/gal coating compared to the control tanks using a 3.5 lb/gal coating. This study enables the source to achieve greater emission reductions than the presumptive BACT level and at the same time reduce painting costs by 34%. This study provides positive results for the environment, the steel joist industry, and the construction industry. This study could impact EPA's current Maximum Achievable Control Technology (MACT) rule development for Miscellaneous Metal Parts and Products and national VOC rules for this source category under Section 183(e) of the Clean Air Act.

  12. Innovative Retrofit Insulation Strategies for Concrete Masonry Foundations

    SciTech Connect (OSTI)

    Huelman, P.; Goldberg, L.; Jacobson, R.

    2015-05-01

    Basements in climates 6 and 7 can account for a fraction of a home's total heat loss when fully conditioned. Such foundations are a source of moisture, with convection in open block cavities redistributing water from the wall base, usually when heating. Even when block cavities are capped, the cold foundation concrete can act as a moisture source for wood rim joist components that are in contact with it. Because below-grade basements are increasingly used for habitable space, cold foundation walls pose challenges for moisture contribution, energy use, and occupant comfort.

  13. Builders Challenge High Performance Builder Spotlight - NextGen Home, Las Vegas, Nevada

    SciTech Connect (OSTI)

    None

    2009-01-01

    Building America Builders Challenge fact sheet on the NextGen demo home built in Las Vegas. The home has a Home Energy Rating System (HERS) index score of 44 with R-40 spray foam attic insulation, R-40 insulated concrete walls, and a 4kW DC solar laminate

  14. DOE Zero Energy Ready Home Case Study: Manatee County Habitat for Humanity, Ellenton, FL, Affordable

    Broader source: Energy.gov [DOE]

    Case study of a DOE Zero Energy Ready Home in Ellenton, FL, that scored HERS 53 without PV, HERS 23 with PV. This 1,143-square-foot affordable home has R-23 ICF walls, a spray-foamed sealed attic, solar hot water, and a ducted mini-split heat pump.

  15. DOE Zero Energy Ready Home Case Study: High Performance Homes, Chamberlain Court #75, Gettysburg, PA

    Broader source: Energy.gov [DOE]

    Case study of a DOE 2015 Housing Innovation Award winning production home in the cold climate that got a HERS 37 without PV, or HERS 23 with PV, with R-24 SIP walls, Basement with R-10 under slab, and R-15 unfaced batt on walls, sealed attic with R-49 ocsf under roof deck; ground source heat pump COP 4.4.

  16. DOE Zero Energy Ready Home Case Study: KB Home, San Marcos, CA, Production Home

    Broader source: Energy.gov [DOE]

    Case study of a DOE Zero Energy Ready Home in San Marcos, CA that scored HERS 52 without PV, -4 with PV. This 52,778-square-foot production home has R-20 advanced framed walls with batts plus rigid foam sheathing, an air-source heat pump for central air in sealed attic, solar water heating and 100% LED lighting.

  17. DOE Zero Energy Ready Home Case Study: New Town Builders, Denver, CO, Production Home

    Broader source: Energy.gov [DOE]

    Case study of a DOE Zero Energy Ready Home in Denver, CO, that scored HERS 41 without PV, HERS 3 with PV. This 3,560-square-foot production home has R-36 double-stud walls, a vented attic with R-50 blown fiberglass, and a 97% efficient gas furnace with ducts in conditioned space.

  18. DOE Zero Energy Ready Home Case Study: Garbett Homes, Herriman, UT, Production Home

    Broader source: Energy.gov [DOE]

    Case study of a DOE Zero Energy Ready Home in Herriman, UT, that scored HERS 40 without PV, -1 with PV. This 4,111-square-foot production home has R-23 advanced framed walls, and a vented attic with R-60 blown fiberglass.

  19. DOE Zero Energy Ready Home Case Study: e2 Homes, Winter Park, FL, Custom Homes

    Broader source: Energy.gov [DOE]

    Case study of a DOE Zero Energy Ready Home in Winter Park, FL that scored HERS 57 without PV or HERS -7 with PV. This 4,305-square-foot custom home has autoclaved aerated concrete walls, a sealed attic with R-20 spray foam, and ductless mini-split heat pumps.

  20. Existing Whole-House Solutions Case Study: Habitat for Humanity of Palm Beach County, Lake Worth, Florida

    SciTech Connect (OSTI)

    none,

    2012-03-01

    PNNL and Florida Solar Energy Center worked with Habitat for Humanity of Palm Beach County to upgrade an empty 1996 home with a 14.5 SEER AC, heat pump water heater, CFLs, more attic insulation, and air sealing to cut utility bills $872 annually.

  1. Best Practices Case Study: Imagine Homes - Stillwater Ranch, San Antonio, TX

    SciTech Connect (OSTI)

    none,

    2011-04-01

    This case study describes Imagine Homes, who met Builders Challenge criteria on more than 200 homes in San Antonio with rigid foam exterior sheathing, ducts and air handler in conditioned space in a spray-foam insulated attic, and high-efficiency HVAC, windows, and appliances.

  2. DOE Zero Energy Ready Home Case Study: Habitat for Humanity South Sarasota County, Nokomis, FL

    SciTech Connect (OSTI)

    none,

    2014-09-01

    The builder won an Affordable Builder award in the 2014 Housing Innovation Awards for this super-insulated home that features a 5.5-inch-thick layer of open-cell spray foam on the inside of the attic ceiling, providing an R-20-insulated, cool, conditioned space for the home’s high-efficiency SEER 15 heat pumps.

  3. New Whole-House Solutions Case Study: John Wesley Miller, Tucson, Arizona

    SciTech Connect (OSTI)

    none,

    2013-09-01

    This builder worked with the National Association of Home Builders Research Center to build two net-zero energy homes with foam-sheathed masonry walls, low-E windows 2.9 ACH50 air sealing, transfer grilles, ducts in insulated attic, PV, and solar water heating.

  4. Comparison of software models for energy savings from cool roofs

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

    New, Joshua; Miller, William A.; Huang, Yu; Levinson, Ronnen

    2015-06-07

    For this study, a web-based Roof Savings Calculator (RSC) has been deployed for the United States Department of Energy as an industry-consensus tool to help building owners, manufacturers, distributors, contractors and researchers easily run complex roof and attic simulations. RSC simulates multiple roof and attic technologies for side-by-side comparison including reflective roofs, different roof slopes, above sheathing ventilation, radiant barriers, low-emittance roof surfaces, duct location, duct leakage rates, multiple substrate types, and insulation levels. Annual simulations of hour-by-hour, whole-building performance are used to provide estimated annual energy and cost savings from reduced HVAC use. While RSC reported similar cooling savingsmore » to other simulation engines, heating penalty varied significantly. RSC results show reduced cool roofing cost-effectiveness, thus mitigating expected economic incentives for this countermeasure to the urban heat island effect. This paper consolidates comparison of RSC's projected energy savings to other simulation engines including DOE-2.1E, AtticSim, Micropas, and EnergyPlus. Also included are comparisons to previous simulation-based studies, analysis of RSC cooling savings and heating penalties, the role of radiative heat exchange in an attic assembly, and changes made for increased accuracy of the duct model. Finally, radiant heat transfer and duct interaction not previously modeled is considered a major contributor to heating penalties.« less

  5. Building America Whole-House Solutions for New Homes: Schneider Homes, Burien, Washington

    Broader source: Energy.gov [DOE]

    Case study of Schneider Homes who worked with Building America research partner WSU Extension Energy Office to design HERS 65 homes with high-efficiency furnaces in an air- sealed garage closet with ducts in conditioned space, 80% CFL lighting, ENERGY STAR appliances, air-tight drywall, and air sealing of attic hatches.

  6. Building America Whole-House Solutions for New Homes: Pine Mountain Builders, Pine Mountain, Georgia

    Broader source: Energy.gov [DOE]

    Case study of Pine Mountain Builders who worked with Building America research partners IBACOS and Southface Energy Institute to design HERS-59 homes with air-tight 1.0-1.8 ACH50 construction, spray-foamed walls and attics, and high-efficiency heat pumps with fresh-air intake.

  7. Building America Whole-House Solutions for New Homes: John Wesley Miller, Tucson, Arizona

    Broader source: Energy.gov [DOE]

    Case study of John Wesley Miller Companies, who worked with the NAHBRC to build two net-zero energy homes with foam-sheathed masonry walls, low-E windows 2.9 ACH50 air sealing, transfer grilles, ducts in insulated attic, PV, and solar water heating.

  8. Best Practices Case Study: Tindall Homes - Princeton, NJ, Legends at Mansfield, Columbus, NJ

    SciTech Connect (OSTI)

    2011-09-01

    Case Study of Tindall Homes, who worked with Building America to design an optimal package including advanced framing, insulated precast concrete basement walls, polyurethane foam in the walls, and R-49 of batt plus blown cellulose in the attics. Some homes included a detached garden shed with photovoltaic panel-covered roofs.

  9. Best Practices Case Study: Schneider Homes, Inc. - Village at Miller Creek, Burien, W

    SciTech Connect (OSTI)

    none,

    2010-09-01

    Case study of Schneider Homes, who achieved 50% savings over the 2004 IECC with analysis and recommendations from DOEs Building America including moving ducts and furnace into conditioned space, R-23 blown fiberglass in the walls and R-38 in the attics, and high-performance HVAC, lighting, appliances, and windows.

  10. Existing Whole-House Solutions Case Study: Habitat for Humanity South Sarasota County, Venice, Florida

    SciTech Connect (OSTI)

    none,

    2011-11-01

    PNNL and Calcs Plus helped the South Sarasota County Florida Habitat for Humanity retrofit a 1978 single-story home by stripping old drywall, air sealing concrete block walls, and installing rigid insulation, furring strips, and new drywall. The attic was sealed and insulated with spray foam to house a new heat pump.

  11. The Effects of Infrared-Blocking Pigments and Deck Venting on Stone-Coated Metal Residential Roofs

    SciTech Connect (OSTI)

    Miller, William A

    2006-01-01

    Field data show that stone-coated metal shakes and S-mission tile, which exploit the use of infraredblocking color pigments (IrBCPs), along with underside venting reduce the heat flow penetrating the conditioned space of a residence by 70% compared with the amount of heat flow penetrating roofs with conventional asphalt shingles. Stone-coated metal roof products are typically placed on battens and counter-battens and nailed through the battens to the roof deck. The design provides venting on the underside of the metal roof that reduces the heat flow penetrating a home. The Metal Construction Association (MCA) and its affiliate members installed stone-coated metal roofs with shake and S-mission tile profiles and a painted metal shake roof on a fully instrumented attic test assembly at Oak Ridge National Laboratory (ORNL). Measurements of roof, deck, attic, and ceiling temperatures; heat flows; solar reflectance; thermal emittance; and ambient weather were recorded for each of the test roofs and also for an adjacent attic cavity covered with a conventional pigmented and direct nailed asphalt shingle roof. All attic assemblies had ridge and soffit venting; the ridge was open to the underside of the stone-coated metal roofs. A control assembly with a conventional asphalt shingle roof was used for comparing deck and ceiling heat transfer rates.

  12. In-Depth Analysis of Simulation Engine Codes for Comparison with DOE s Roof Savings Calculator and Measured Data

    SciTech Connect (OSTI)

    New, Joshua Ryan; Levinson, Ronnen; Huang, Yu; Sanyal, Jibonananda; Miller, William A.; Mellot, Joe; Childs, Kenneth W.; Kriner, Scott

    2014-06-01

    The Roof Savings Calculator (RSC) was developed through collaborations among Oak Ridge National Laboratory (ORNL), White Box Technologies, Lawrence Berkeley National Laboratory (LBNL), and the Environmental Protection Agency in the context of a California Energy Commission Public Interest Energy Research project to make cool-color roofing materials a market reality. The RSC website and a simulation engine validated against demonstration homes were developed to replace the liberal DOE Cool Roof Calculator and the conservative EPA Energy Star Roofing Calculator, which reported different roof savings estimates. A preliminary analysis arrived at a tentative explanation for why RSC results differed from previous LBNL studies and provided guidance for future analysis in the comparison of four simulation programs (doe2attic, DOE-2.1E, EnergyPlus, and MicroPas), including heat exchange between the attic surfaces (principally the roof and ceiling) and the resulting heat flows through the ceiling to the building below. The results were consolidated in an ORNL technical report, ORNL/TM-2013/501. This report is an in-depth inter-comparison of four programs with detailed measured data from an experimental facility operated by ORNL in South Carolina in which different segments of the attic had different roof and attic systems.

  13. Evaluation of the NightCool Nocturnal Radiation Cooling Concept: Annual Performance Assessment in Scale Test Buildings Stage Gate 1B

    SciTech Connect (OSTI)

    Parker, Danny S.; Sherwin, John R.

    2008-03-01

    In this report, data is presented on the long-term comparative with all of NightCool system fully operational, with circulating fans when attic conditions are favorable for nocturnal cooling and with conventional air conditioning at other times. Data is included for a full year of the cooling season in Central Florida, which stretches from April to November of 2007.

  14. Comparison of software models for energy savings from cool roofs

    SciTech Connect (OSTI)

    New, Joshua; Miller, William A.; Huang, Yu; Levinson, Ronnen

    2015-06-07

    For this study, a web-based Roof Savings Calculator (RSC) has been deployed for the United States Department of Energy as an industry-consensus tool to help building owners, manufacturers, distributors, contractors and researchers easily run complex roof and attic simulations. RSC simulates multiple roof and attic technologies for side-by-side comparison including reflective roofs, different roof slopes, above sheathing ventilation, radiant barriers, low-emittance roof surfaces, duct location, duct leakage rates, multiple substrate types, and insulation levels. Annual simulations of hour-by-hour, whole-building performance are used to provide estimated annual energy and cost savings from reduced HVAC use. While RSC reported similar cooling savings to other simulation engines, heating penalty varied significantly. RSC results show reduced cool roofing cost-effectiveness, thus mitigating expected economic incentives for this countermeasure to the urban heat island effect. This paper consolidates comparison of RSC's projected energy savings to other simulation engines including DOE-2.1E, AtticSim, Micropas, and EnergyPlus. Also included are comparisons to previous simulation-based studies, analysis of RSC cooling savings and heating penalties, the role of radiative heat exchange in an attic assembly, and changes made for increased accuracy of the duct model. Finally, radiant heat transfer and duct interaction not previously modeled is considered a major contributor to heating penalties.

  15. Building America Efficient Solutions for Existing Homes Case Study: Habitat for Humanity of Palm Beach County, Lake Worth, Florida

    Broader source: Energy.gov [DOE]

    PNNL and Florida Solar Energy Center worked with Habitat for Humanity of Palm Beach County to upgrade an empty 1996 home with a 14.5 SEER AC, heat pump water heater, CFLs, more attic insulation, and air sealing to cut utility bills $872 annually.

  16. Building America Efficient Solutions for Existing Homes Case Study: Habitat for Humanity South Sarasota County, Venice, Florida

    Broader source: Energy.gov [DOE]

    PNNL and Calcs Plus helped the South Sarasota County Florida Habitat for Humanity retrofit a 1978 single-story home by stripping old drywall, air sealing concrete block walls, and installing rigid insulation, furring strips, and new drywall. The attic was sealed and insulated with spray foam to house a new heat pump.

  17. DOE ZERH Case Study: High Performance Homes, Chamberlain Court #75, Gettysburg, PA

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning production home in the cold climate that got a HERS 37 without PV, or HERS 23 with PV, with R-24 SIP walls, Basement with R-10 under slab, and R-15 unfaced batt on walls, sealed attic with R-49 ocsf under roof deck; ground source heat pump COP 4.4.

  18. Technology Solutions Case Study: Durable Interior Foundation Insulation Retrofits for Cold Climates, Cloquet, Minnesota

    SciTech Connect (OSTI)

    2015-04-01

    Thermal and moisture problems in existing basements create a unique challenge as the exterior face of the wall is not easily or inexpensively accessible. This approach by the NorthernSTAR Building America Partnership team addresses thermal and moisture management from the interior face of the wall without disturbing the exterior soil and landscaping. It is effective at reducing energy loss through the wall principally during the heating season. The team conducted experiments at the Cloquet Residential Research Facility to test the heat and moisture performance of four hollow masonry block wall systems and two rim-joist systems. These systems were retrofitted with interior insulation in compliance with the 2012 IECC. The research showed for the first time that, for masonry block walls in a cold climate, a solid bond beam or equivalent provides adequate resistance to moisture transport from a hollow core to the rim-joist cavity. Thus, a solid top course is a minimum requirement for an interior retrofit insulation system.

  19. Building America Technlogy Solutions for New and Existing Homes: Interior Foundation Insulation Upgrade – Madison Residence (Fact Sheet)

    Broader source: Energy.gov [DOE]

    This basement insulation project included a dimple map conveying inbound moisture to a draintile, airtight spray polyurethane foam wall and floor insulation, and radiant floor heat installation.

  20. Building America Technlogy Solutions for New and Existing Homes...

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

    insulation project included a dimple map conveying inbound moisture to a draintile, airtight spray polyurethane foam wall and floor insulation, and radiant floor heat installation. ...

  1. Technology Solutions Case Study: Interior Foundation Insulation Upgrade-Madison Residence

    SciTech Connect (OSTI)

    2013-10-01

    This basement insulation project included a dimple mat conveying inbound moisture to a draintile, airtight spray polyurethane foam wall and floor insulation, and radiant floor heat installation

  2. Geologic investigation of roof and floor strata: longwall demonstration, Old Ben Mine No. 24. Prediction of coal balls in the Herrin Coal. Final technical report: Part 2. [Mineralized peat balls

    SciTech Connect (OSTI)

    DeMaris, P.J.; Bauer, R.A.; Cahill, R.A.; Damberger, H.H.

    1983-04-01

    Coal-ball areas, large deposits of mineralized peat in the coal seam, obstructed longwall mining in the Herrin Coal at Old Ben Mine No. 24. In-mine mapping located coal balls under transitional roof - areas where the roof lithology alternates between the Energy Shale and the Anna Shale/Brereton Limestone. Specifically, coal balls occur under eroded exposures or windows of the marine Anna Shale/Brereton Limestone in the Energy Shale. Two types of coal-ball areas have been identified, based on stratigraphic position in the coal seam: type I is restricted to the top of the seam, and type II occurs at midseam and below. To predict the distribution of coal balls, as well as explain their formation, a depositional model was developed: First, freshwater sediments buried the Herrin peat. Decomposition of the sealed peat continued, producing high CO/sub 2/ partial pressures; then selective erosion took place as a river removed the cover along sinuous paths, cutting through to the peat in some places. With the seal broken, CO/sub 2/ was released, and freshwaters that contained Ca and Mg ions flushed out organic acids. Later, marine mud buried both the freshwater sediments and the exposed peat, which accounts for the transitional roof over the Herrin Coal and the coal balls under the marine shale windows in the Energy Shale. The depositional model was supported by the first comprehensive set of geochemical data for coal balls. Coal balls generally contained less than 4 percent organic carbon and very low levels of detrital minerals. Although individual sites of concentrated coal balls cannot be predicted, the specific linear roof exposures associated with these coal-ball areas can be identified by mapping. Based on previously mapped areas, the trends of these linear exposures can be projected.

  3. Deep Residential Retrofits in East Tennessee

    SciTech Connect (OSTI)

    Boudreaux, Philip R; Hendrick, Timothy P; Christian, Jeffrey E; Jackson, Roderick K

    2012-04-01

    also monitored, with temperature and humidity measured in all conditioned zones, attics, crawlspaces, and unconditioned basements. In some homes, heat flux transducers are installed on the basement walls to help determine the insulating qualities of the technologies and practices. EnergyGauge is used to estimate the pre-retrofit and post-retrofit home energy rating system (HERS) index and reduction in energy consumption and energy bill. In a follow-up report, data from the installed sensors will be presented and analyzed as well as a comparison of the post-retrofit energy consumption of the home to the EnergyGauge model of the post-retrofit home. Table ES1 shows the retrofits that were completed at the eight households where some or all of the recommended retrofits were completed. Home aliases are used to keep the homeowners anonymous. Some key findings of this study thus far are listed as follows. Some homeowners (50%) are not willing to spend the money to reach 30 50% energy savings. Quality of retrofit work is significantly variable among contractors which impact the potential energy savings of the retrofit. Challenges exist in defining house volume and floor area. Of the five homes that completed all the recommended retrofits, energy bill savings was not the main driver for energy retrofits. In no case were the retrofits cost neutral given a 15 year loan at 7% interest for the retrofit costs.

  4. The North Carolina Field Test: Field Performance of the Preliminary Version of an Advanced Weatherization Audit for the Department of Energy's Weatherization Assistance Program

    SciTech Connect (OSTI)

    Sharp, T.R.

    1994-01-01

    The field performance of weatherizations based on a newly-developed advanced technique for selecting residential energy conservation measures was tested alongside current Retro-Tech-based weatherizations in North Carolina. The new technique is computer-based and determines measures based on the needs of an individual house. In addition, it recommends only those measures that it determines will have a benefit-to-cost ratio greater than 1 for the house being evaluated. The new technique also considers the interaction of measures in computing the benefit-to-cost ratio of each measure. The two weatherization approaches were compared based on implementation ease, measures installed, labor and cost requirements, and both heating and cooling energy savings achieved. One-hundred and twenty houses with the following characteristics participated: the occupants were low-income, eligible for North Carolina's current weatherization program, and responsible for their own fuel and electric bills. Houses were detached single-family dwellings, not mobile homes; were heated by kerosene, fuel oil, natural gas, or propane; and had one or two operating window air conditioners. Houses were divided equally into one control group and two weatherization groups. Weekly space heating and cooling energy use, and hourly indoor and outdoor temperatures were monitored between November 1989 and September 1990 (pre-period) and between December 1990 and August 1991 (post-period). House consumption models were used to normalize for annual weather differences and a 68 F indoor temperature. Control group savings were used to adjust the savings determined for the weatherization groups. The two weatherization approaches involved installing attic and floor insulations in near equivalent quantities, and installing storm windows and wall insulation in drastically different quantities. Substantial differences also were found in average air leakage reductions for the two weatherization groups. Average

  5. All

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

    One floor Two floors Three floors Four to nine floors Ten or more floors All buildings One floor Two floors Three floors Four to nine floors Ten or more floors All buildings 5,557 3,836 1,158 374 177 13 87,093 39,809 20,206 8,140 13,535 5,404 Building floorspace (square feet) 1,001 to 5,000 2,777 2,195 423 137 Q N 8,041 6,244 1,315 416 Q N 5,001 to 10,000 1,229 836 301 74 Q N 8,900 6,044 2,181 536 Q N 10,001 to 25,000 884 519 254 78 32 N 14,105 8,129 4,162 1,234 581 N 25,001 to 50,000 332 161

  6. b10.xls

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

    One Floor Two Floors Three Floors Four to Nine Floors Ten or More Floors All Build- ings* One Floor Two Floors Three Floors Four to Nine Floors Ten or More Floors All Buildings* .................................. 4,645 3,136 1,031 339 128 12 64,783 25,981 16,270 7,501 10,085 4,947 Building Floorspace (Square Feet) 1,001 to 5,000 ................................... 2,552 2,014 411 115 Q N 6,789 5,192 1,217 343 Q N 5,001 to 10,000 ................................. 889 564 239 70 Q N 6,585 4,150

  7. Measure Guideline: Buried and/or Encapsulated Ducts

    SciTech Connect (OSTI)

    Shapiro, C.; Zoeller, W.; Mantha, P.

    2013-08-01

    Buried and/or encapsulated ducts (BEDs) are a class of advanced, energy-efficiency strategies intended to address the significant ductwork thermal losses associated with ducts installed in unconditioned attics. BEDs are ducts installed in unconditioned attics that are covered in loose-fill insulation and/or encapsulated in closed cell polyurethane spray foam insulation. This Measure Guideline covers the technical aspects of BEDs as well as the advantages, disadvantages, and risks of BEDs compared to other alternative strategies. This guideline also provides detailed guidance on installation of BEDs strategies in new and existing homes through step-by-step installation procedures. Some of the procedures presented here, however, require specialized equipment or expertise. In addition, some alterations to duct systems may require a specialized license.

  8. Building America Case Study: Duct in Conditioned Space in a Dropped Ceiling or Fur-down, Gainesville, Florida (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-09-01

    Forced air distribution systems (duct systems) typically are installed out of sight for aesthetic reasons, most often in unconditioned areas such as an attic or crawlspace. Any leakage of air to or from the duct system (duct leakage) in unconditioned space not only loses energy, but impacts home and equipment durability and indoor air quality. An obvious solution to this problem is to bring the duct system into the interior of the house, either by sealing the area where the ducts are installed (sealed attic or crawlspace) or by building an interior cavity or chase above the ceiling plane (raised ceiling or fur-up chase) or below the ceiling plane (dropped ceiling or fur-down) for the duct system. This case study examines one Building America builder partner's implementation of an inexpensive, quick and effective method of building a fur-down or dropped ceiling chase.

  9. Technology Solutions Case Study: Buried and Encapsulated Ducts, Jacksonville, Florida

    SciTech Connect (OSTI)

    2013-11-01

    Ductwork installed in unconditioned attics can significantly increase the overall heating and cooling costs of residential buildings. In fact, estimated duct thermal losses for single-family residential buildings with ductwork installed in unconditioned attics range from 10% to 45%. In a study of three single-story houses in Florida, the Building America research team Consortium for Advanced Residential Buildings (CARB) investigated the strategy of using buried and/or encapsulated ducts (BED) to reduce duct thermal losses in existing homes. The BED strategy consists of burying ducts in loose-fill insulation and/or encapsulating them in closed cell polyurethane spray foam (ccSPF) insulation; specifically for use in humid climates.

  10. Technology Solutions Case Study: Duct in Conditioned Space in a Dropped Ceiling or Fur-down, Gainesville, Florida

    SciTech Connect (OSTI)

    2014-09-01

    Forced-air distribution systems (duct systems) typically are installed out of sight for aesthetic reasons, most often in unconditioned areas such as attics or crawlspaces. Any leakage of air to or from the duct system in unconditioned space not only loses energy, but impacts home and equipment durability and indoor air quality. An obvious solution is to bring the duct system into the interior of the house, either by sealing the area where the ducts are installed (attic or crawlspace) or by building an interior cavity or chase above the ceiling plane (raised ceiling or fur-up chase) or below the ceiling plane (dropped ceiling or fur-down) for the duct system. In this project, Building America Partnership for Improved Residential Construction team partnered with Tommy Williams Homes to implement an inexpensive, quick, and effective method of building a fur-down chase.

  11. Operating temperatures for a convectively cooled recessed incandescent light fixture

    SciTech Connect (OSTI)

    Yarbrough, D.W.; Toor, I.

    1980-12-01

    Test results are given for the operation of a recessed incandescent light fixture intended for residential use. The fixture is labeled for use in direct contact with attic thermal insulation. Temperature control of the powered fixture is provided by convective heat transfer from the ceiling side of the fixture. The fixture was operated at power levels up to two times the rated power of 75 watts and under thermal insulations up to R-40. In all operating configurations tested the fixture surface in contact with attic insulation was found to be less than 175/sup 0/C. The observed surface temperatures are judged to be safe for operation in contact with loose-fill or batt-type insulations. It was observed that the power leads inside one fixture configuration are exposed to temperatures as high as 168/sup 0/C. The electrical insulation could, therefore, have a limited life. The properties of the internal fixture wiring were not, however, studied in detail.

  12. DOE Zero Energy Ready Home Case Study: United Way of Long Island Housing Development Corporation, Patchogue, NY

    Broader source: Energy.gov [DOE]

    Case study of a DOE 2015 Housing Innovation Award winning affordable home in the mixed-humid climate that got HERS 40 without PV, -3 with PV, with 2x4 16: on center walls with R-13.5 dense packed cellulose and 1.5” polyiso rigid; basement with 2.5: polyiso on interior; unvented attic with R-48 ocsf under roof deck; ERV tied to wall hung boiler with hydro coil.

  13. DOE Zero Energy Ready Home Case Study: Mandalay Homes, Vision Hill Lot 1, Glendale, AZ

    Broader source: Energy.gov [DOE]

    Case study of a DOE 2015 Housing Innovation Award winning production home in the hot-dry climate that got a HERS 52 without PV, or HERS -2 with PV, with 2x6 16” on center walls with R-14 ocsf plus R-4 rigid exterior; slab on grade with R-8 slab edge; sealed attic with R-31 ocsf under roof deck; 92 AFUE furnace, 15 SEER AC, 100% LED.

  14. DOE Zero Energy Ready Home Case Study: BrightLeaf Homes, McCormick Avenue, Brookfield, IL

    Broader source: Energy.gov [DOE]

    Case study of a DOE 2015 Housing Innovation Award winning production home in the cold climate that got a HERS 38 without PV, with staggered 2x4 studs every 8”on a 2x6 plate with dense-packed R-25 cellulose, basement with 3” XPS exterior and 2: XPS under slab; a vented attic with spray foam top plates and R-60 blown cellulose; 96% AFUE furnace, 14 SEER AC, plus fresh air intake.

  15. DOE Zero Energy Ready Home Case Study: KB Home, Double ZeroHouse 3.0, El Dorado Hill, CA

    Broader source: Energy.gov [DOE]

    Case study of a DOE 2015 Housing Innovation Award winning production home in the mixed-dry climate that got a HERS 44 without PV, or HERS -2 with PV, with 2x4 walls 16” on center walls with R-15 cavity plus 1” EPS exterior rigid foam, slab on grade with R-10 slab edge; unvented attic with R-38 blown fiberglass netted to underside of roof deck; 19 SEER heat pump; heat pump water heater; 100% LED.

  16. DOE Zero Energy Ready Home Case Study: Transformations Inc., Custom House, Devens, MA

    Broader source: Energy.gov [DOE]

    Case study of a DOE Zero Energy Ready Home in Devens, MA, that scored HERS 34 without PV or HERS -21 with PV. This 3,168-square-foot custom home has R-46 double-stud walls, a vented attic with R-67 blown cellulose, plus R-10 rigid XPS under the slab, R-20 closed-cell spray foam on basement walls, triple-pane windows, and mini-split ductless heat pumps.

  17. DOE Zero Energy Ready Home Case Study: Habitat for Humanity South Sarasota, Laurel Gardens #794, Nakomis, FL

    Broader source: Energy.gov [DOE]

    Case study of a DOE 2015 Housing Innovation Award winning affordable home in the hot-humid climate that got a HERS 51 without PV, with foam-filled masonry block walls with .75” rigid foam, furring strips, and foil-faced paper on interior walls; R-20 ocsf in roof of sealed attic, uninsulated slab, 15 SEER 8.0 HSPF heat pump walls for heating and cooling, heat pump water heater.

  18. DOE Zero Energy Ready Home Case Study: Heirloom Design Build, Euclid Avenue, Atlanta, GA

    Broader source: Energy.gov [DOE]

    Case study of a DOE 2015 Housing Innovation Award winning custom home in the mixed-humid climate that got a HERS 50 without PV, with 2x6 16” on center walls with R-19 ocsf; basement with R-28 ccsf, R-5 rigid foam under slab; sealed attic with R-28 ocsf under roof deck; 22.8 SEER; 12.5 HSPF heat pump.

  19. DOE Zero Energy Ready Home Case Study: Transformation Inc., Production House, Devens, MA

    Broader source: Energy.gov [DOE]

    Case study of a DOE Zero Energy Ready Home in Devens, MA, that scored HERS 35 without PV or HERS -37 with PV. This 2,508-square-foot custom home has R-46 double-stud walls with open-cell spray foam, a vented attic with R-67 blown cellulose, plus R-10 rigid XPS under the slab, R-20 closed-cell spray foam on basement walls, triple-pane windows, and one mini-split ductless heat pump.

  20. DOE Zero Energy Ready Home Case Study: Mutual Housing California, Mutual Housing at Spring Lake, Woodland, CA

    Broader source: Energy.gov [DOE]

    Case study of a DOE 2015 Housing Innovation Award winning multifamily project of 62 affordable-housing apartment home in the hot-dry climate that exceeded CA Title 24-2008 by 35%, with 2x4 16” on center walls with R-21 fiberglass bass walls, uninsulated salb on grade foundation; vented attic with R-44 blown fiberglass; air to water heat pumps.

  1. DOE Zero Energy Ready Home Case Study: Amaris Homes, Fishers Circle, Vadnais Heights, MN

    Broader source: Energy.gov [DOE]

    Case study of a DOE 2015 Housing Innovation Award winning custom home in the cold climate that got a HERS 47 without PV or HERS 22 with PV, with 2x4 24” on-center walls with 1 inch rigid foam plus 3” ccsf in cavity, a slab on grade foundation with 2” rigid foam under and around slab, a vented attic with with 2” ccsf plus R-15 blown cellulose, a central heat pump and HRV.

  2. DOE Zero Energy Ready Home Case Study: Greenhill Contracting, Green Acres #20, #26, #28, New Paltz, NY

    Broader source: Energy.gov [DOE]

    Case study of three DOE 2015 Housing Innovation Award winning custom homes in the cold climate that got a HERS of 26, 28, and 26 without PV or -3, -1, and -3.5 with PV; with R-22 ICFs, 10” ocsf plus 2.7” c ccsf in attic; ICF basements with 4.3” ccsf under slab; tri;e-pane windows; ERVs, ground source heat pumps (COP 5.7).

  3. DOE Zero Energy Ready Home Case Study: Palo Duro Homes, Via del Cielo, Santa Fe, NM

    Broader source: Energy.gov [DOE]

    Case study of a DOE 2015 Housing Innovation Award winning production home in the mixed-dry climate that got a HERS 48 without PV, with 2x6 24” on center walls with R-21 blown fiberglass; slab foundation with R-10 under slab and R-5rigid foam at slab edge; vented attic with R-75 blown fiberglass; ducted minisplit heat pump 16.5 SEER, 9.5 HSPF.

  4. DOE Zero Energy Ready Home Case Study: New Town Builders, Town Homes at Perrin's Row, Wheat Ridge, CO

    Broader source: Energy.gov [DOE]

    Case study of a DOE 2015 Housing Innovation Award winning multifamily project with 26 units in the cold climate that got a HERS 54 without PV, or HERS 28 with PV, with 2x6 24” on center walls with R-23 blown fiberglass; slab foundation with R-10 rigid at slab edge; plus R-10 rigid exterior; R-22 ICF basement walls; vented attic with R-50 blown fiberglass; 92 AFUE furnace, 13 SEER AC.

  5. DOE Zero Energy Ready Home Case Study: Hammer and Hand, Pumpkin Ridge Passive House, North Plains, OR

    Broader source: Energy.gov [DOE]

    Case study of a DOE 2015 Housing Innovation Award winning custom home in the marine climate that got a HERS 49 without PV, or HERS 5 with PV, with 2x4 24” on center walls plus 8” exterior cavity together dense-packed with R-60 cellulose; daylight basement with R-29 rigid EPS foam under slab; vented attic with R-86 blown cellulose; minisplit heat pump; ducted with HRV; 15.5 SEER; 10 HSPF.

  6. DOE Zero Energy Ready Home Case Study: Mandalay Homes, Phoenix, AZ, Affordable

    Broader source: Energy.gov [DOE]

    Case study of a DOE Zero Energy Ready Home in Phoenix, AZ, that scored HERS 58 without PV or HERS 38 with PV. This 1,700-square-foot affordable home has R-21 framed walls, a sealed closed-cell spray foamed attic, an air-source heat pump with forced air, and a solar combo system that provides PV, hot water, and space heating.

  7. Our Climate Action Progress: One-Year Report | Department of Energy

    Energy Savers [EERE]

    Energy Oregon School District Benefits from Energy Improvements Oregon School District Benefits from Energy Improvements February 29, 2016 - 2:53pm Addthis Before-and-after scenes of the energy-saving renovations at Oregon's Lowell School District in summer 2015. Upgrades included insulation of attics and exterior walls, roof replacements, and removal and replacement of asbestos siding. Before-and-after scenes of the energy-saving renovations at Oregon's Lowell School District in summer

  8. Technology Solutions for New Homes Case Study: Indirect Solar Water Heating

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

    Systems in Single-Family Homes | Department of Energy Indirect Solar Water Heating Systems in Single-Family Homes Technology Solutions for New Homes Case Study: Indirect Solar Water Heating Systems in Single-Family Homes In 2011, Rural Development, Inc. (RDI) completed the construction of Wisdom Way Solar Village (WWSV), which is a development of 20 very efficient homes in Greenfield, Massachusetts. The homes feature R-40 walls, triple-pane windows, R-50 attic insulation, and airtight

  9. Training: How to Get Results - What Matters, What Doesn't (201) |

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

    Department of Energy Training: How to Get Results - What Matters, What Doesn't (201) Training: How to Get Results - What Matters, What Doesn't (201) Better Buildings Residential Network Peer Exchange Call Series: Training: How to Get Results - What Matter, What Doesn't (201), call slides and discussion summary. Call Slides and Discussion Summary (2.62 MB) More Documents & Publications Home Performance Training and Mentoring: Lessons and Resources Ghosts in the Attic - Horror Stories from

  10. Best Practices Case Study: John Wesley Miller Companies - Armory Park Del Sol, Tucson, AZ

    SciTech Connect (OSTI)

    2009-10-01

    Case study of John Wesley Miller Companies, who built two net zero energy homes plus 97 other solar homes in Tucson, AZ. Masonry block walls with rigid foam exterior sheathing, rigid foam over the roof deck plus R-38 in the attic, ducts in conditioned space, 4.2 kW and 5.7 kW photovoltaics and solar water heating yielded HERS scores of 0 on the two homes.

  11. Best Practices Case Study: CDC Realty, Inc. - Centennial Terrace, Tucson, AZ

    SciTech Connect (OSTI)

    2009-10-01

    Case study on CDC Realty who achieved HERS 70 by putting ducts in a conditioned attic insulated along the roofline with netted cellulose, R-5 rigid insulated sheathing over R-19 wall cavity insulation, and deep overhangs and low-e windows to minimize solar heat gain. The 17 homes are solar-ready for solar water heating and five have integral collector storage hot water systems on the roof.

  12. DOE Zero Energy Ready Home Case Study: BPC Green Builders — Trolle Residence, Danbury, CT

    SciTech Connect (OSTI)

    none,

    2014-09-01

    The builder of this 1,650-ft2 cabin won a Custom Home honor in the 2014 Housing Innovations Awards. The home meets Passive House Standards with 5.5-in. of foil-faced polysiocyanurate foam boards lining the outside walls, R-55 of rigid EPS foam under the slab, R-86 of blown cellulose in the attic, triple-pane windows, and a single ductless heat pump to heat and cool the entire home.

  13. Laboratory Testing of Aerosol for Enclosure Air Sealing

    SciTech Connect (OSTI)

    Harrington, C.; Modera, M.

    2012-05-01

    Space conditioning energy use can be significantly reduced by addressing uncontrolled infiltration and exfiltration through the envelope of a building. A process for improving the air tightness of a building envelope by sealing shell leaks with an aerosol sealing technology is presented. Both retrofit and new construction applications are possible through applying this process either in attics and crawlspaces or during rough-in stage.

  14. Weatherization Installer/Technician Fundamentals 2.0 - Moisture Barriers |

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

    Department of Energy Moisture Barriers Weatherization Installer/Technician Fundamentals 2.0 - Moisture Barriers Moisture Barriers - Complete (2.34 MB) Lesson Plan: Moisture Barriers (107.22 KB) PowerPoint: Moisture Barriers (2.31 MB) More Documents & Publications Energy Auditor - Single Family 2.0: Moisture Assessment Weatherization Installer/Technician Fundamentals 2.0 - Roofing, Flashing, and Attic Ventilation Installation Needs Energy Auditor - Single Family 2.0: Building Shell

  15. Radiant Barriers | Department of Energy

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

    Weatherize » Insulation » Radiant Barriers Radiant Barriers Radiant barriers are installed in homes -- usually in attics -- primarily to reduce summer heat gain and reduce cooling costs. The barriers consist of a highly reflective material that reflects radiant heat rather than absorbing it. They don't, however, reduce heat conduction like thermal insulation materials. How They Work Heat travels from a warm area to a cool area by a combination of conduction, convection, and radiation. Heat

  16. Technical Consultant Report Template

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

    TECHNICAL CONSULTING REPORT Page 1 of 1 Report Date Report By: Homeowner Address Consult Type & Date(s) Email / Telephone In Person Purpose(s) of Meeting (generally) Service(s) Undertaken Observations Recommendations a. Visual Inspection Attic Basement / Crawlspace Equipment Other b. Diagnostic Testing Blower Door Combustion Testing Other c. Written Materials Review Audit Report Proposal Other d. Other NOTE: This Report was prepared at the request of the Homeowner, based on information

  17. Hudson Valley Clean Energy Office and Warehouse

    High Performance Buildings Database

    Rhinebeck, NY Hudson Valley Clean Energy's new head office and warehouse building in Rhinebeck, New York, achieved proven net-zero energy status on July 2, 2008, upon completing its first full year of operation. The building consists of a lobby, meeting room, two offices, cubicles for eight office workers, an attic space for five additional office workers, ground- and mezzanine-level parts and material storage, and indoor parking for three contractor trucks.

  18. DOE ZERH Case Study: Mutual Housing California, Mutual Housing at Spring Lake, Woodland, CA

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning multifamily project of 62 affordable-housing apartment home in the hot-dry climate that exceeded CA Title 24-2008 by 35%, with 2x4 16” on center walls with R-21 fiberglass bass walls, uninsulated salb on grade foundation; vented attic with R-44 blown fiberglass; air to water heat pumps.

  19. DOE Commercial Building Energy Asset Rating Program Focus Groups with

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

    Primary Stakeholders in Seattle -- Final Report | Department of Energy cq5_attic_ducts_aldrich.pdf (4.92 MB) More Documents & Publications Critical Question #5: What are Recent Innovations in Air Distribution Systems? DOE Zero Energy Ready Home Technical Training - Ducts in Conditioned Space Building America Technology Solutions for New and Existing Homes: Buried and Encapsulated Ducts, Jacksonville, Florida (Fact Sheet)

  20. Sheltering in Place | U.S. DOE Office of Science (SC)

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

    Sheltering in Place Emergency Information Emergency Information Home Public Notifications Emergency Vocabulary Sheltering in Place Evacuation ISC Home Sheltering in Place Print Text Size: A A A FeedbackShare Page If you are advised to shelter-in-place by local news or our website, please follow these instructions: Bring everyone inside (including pets). Close all doors and windows. Turn off and close all ventilation systems, including: Air conditioning Attic & exhaust fans Furnaces Fireplace

  1. DOE Zero Energy Ready Home Case Study: StreetScape Development, LLC, Libertyville, IL, Custom

    Broader source: Energy.gov [DOE]

    Case study of a DOE Zero Energy Ready Home in Libertyville, IL, that scored HERS 45 without PV. This 2,763-square-foot custom home has advanced framed walls with R-20 of open-cell spray foam, R-49 open-cell spray-foam sealed attic, an HRV, and a tankless water heater for hydro coil furnace with high-velocity, small-diameter ducts.

  2. Building America Webinar: High-Performance Enclosure Strategies, Part I:

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

    Unvented Roof Systems and Innovative Advanced Framing Strategies | Department of Energy Joe Lstiburek, Building Science Corporation, will discuss several advances in unvented roof technology to condition attics, including the use of diffusion venting and dehumidification. These approaches will allow the use of cellulose and fiberglass insulation systems rather than the current approaches that rely on rigid insulation or spray polyurethane foams. Unvented Roof Assemblies (8.88 MB) More

  3. Buried and Encapsulated Ducts, Jacksonville, Florida (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

    Buried and Encapsulated Ducts Jacksonville, Florida PROJECT INFORMATION Project Name: Buried and Encapsulated Ducts Location: Jacksonville, FL Partners: BASF http://www.basf.com Consortium for Advanced Residential Buildings www.carb-swa.com Building Component: Ductwork and Attic Insulation Application: New and/or Retrofit; Single-Family Year Tested: 2010-2011 Applicable Climate Zone(s): All Climates in IECC Moisture Regime A. PERFORMANCE DATA Cost of Energy-Efficiency Measure (including labor):

  4. Best Practices Case Study: New Tradition Homes - Landover Commons, Vancouver, WA

    SciTech Connect (OSTI)

    none,

    2010-09-01

    Case study of New Tradition Homes who saved 26% over Washington states energy code by moving ducts inside conditioned space, upgrading the furnace, increasing attic insulation to R-49, and improving air sealing. This added $3,600 to the initial cost or $290 in increased annual mortgage costs but saved $991 per year for an annual net cash back to the homeowner of $700.

  5. DOE ZERH Case Study: Habitat for Humanity South Sarasota, Laurel Gardens #794, Nakomis, FL

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning affordable home in the hot-humid climate that got a HERS 51 without PV, with foam-filled masonry block walls with .75” rigid foam, furring strips, and foil-faced paper on interior walls; R-20 ocsf in roof of sealed attic, uninsulated slab, 15 SEER 8.0 HSPF heat pump walls for heating and cooling, heat pump water heater.

  6. DOE ZERH Case Study: KB Home, Double ZeroHouse 3.0, El Dorado Hill, CA

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning production home in the mixed-dry climate that got a HERS 44 without PV, or HERS -2 with PV, with 2x4 walls 16” on center walls with R-15 cavity plus 1” EPS exterior rigid foam, slab on grade with R-10 slab edge; unvented attic with R-38 blown fiberglass netted to underside of roof deck; 19 SEER heat pump; heat pump water heater; 100% LED.

  7. DOE ZERH Case Study: Addison Homes, Cobbler Lane, Simpsonville, SC

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning custom home in the mixed humid climate that got a HERS 41 without PV, with 2x4 16” on-center walls with 1 inch rigid foam, a sealed conditioned crawl space insulated on inside with 2 inches poly iso, a vented attic with R-38 blown fiberglass, a central heat pump with fresh air intake.

  8. DOE ZERH Case Study: Glastonbury Housesmith, Hickory Drive, South Glastonbury, CT

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning custom home in the cold climate that got a HERS 29 without PV -23 with PV, with 2x6 24” on center walls with 5.5 blown fiberglass and 2.75” rigid mineral wool; basement with 4” XPS exterior, 4” under slab; sealed attic with 5” ccsf and R-58 blown fiberglass; ground source heat pump COP 4.4.

  9. DOE ZERH Case Study: Palo Duro Homes, Via del Cielo, Santa Fe, NM

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning production home in the mixed-dry climate that got a HERS 48 without PV, with 2x6 24” on center walls with R-21 blown fiberglass; slab foundation with R-10 under slab and R-5rigid foam at slab edge; vented attic with R-75 blown fiberglass; ducted minisplit heat pump 16.5 SEER, 9.5 HSPF.

  10. DOE ZERH Case Study: Amaris Homes, Fishers Circle, Vadnais Heights, MN

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning custom home in the cold climate that got a HERS 47 without PV or HERS 22 with PV, with 2x4 24” on-center walls with 1 inch rigid foam plus 3” ccsf in cavity, a slab on grade foundation with 2” rigid foam under and around slab, a vented attic with with 2” ccsf plus R-15 blown cellulose, a central heat pump and HRV.

  11. DOE ZERH Case Study: BrightLeaf Homes, McCormick Avenue, Brookfield, IL

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning production home in the cold climate that got a HERS 38 without PV, with staggered 2x4 studs every 8”on a 2x6 plate with dense-packed R-25 cellulose, basement with 3” XPS exterior and 2: XPS under slab; a vented attic with spray foam top plates and R-60 blown cellulose; 96% AFUE furnace, 14 SEER AC, plus fresh air intake.

  12. DOE ZERH Case Study: Dwell Development, Reclaimed Modern, Seattle, WA

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning custom home in the cold climate that got a HERS 30 without PV, with 2x8 24” on center walls with blown fiberglass and 4” polysio rigid foam; basement with 2” XPS interior, 4” under slab, 4” exterior of foundation wall; vented attic with R-100 blown cellulose; wo air-to-air heat pumps SEER 14.1; HSPF 9.6; heat pump water heater.

  13. DOE ZERH Case Study: Evolutionary Home Builders, The Adaptation Home, Geneva, IL

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning custom home in the cold climate that got a HERS 30 without PV, with 2x8 24” on center walls with blown fiberglass and 4” polysio rigid foam; basement with 2” XPS interior, 4” under slab, 4” exterior of foundation wall; vented attic with R-100 blown cellulose; wo air-to-air heat pumps SEER 14.1; HSPF 9.6; heat pump water heater.

  14. DOE ZERH Case Study: Heirloom Design Build, Euclid Avenue, Atlanta, GA

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning custom home in the mixed-humid climate that got a HERS 50 without PV, with 2x6 16” on center walls with R-19 ocsf; basement with R-28 ccsf, R-5 rigid foam under slab; sealed attic with R-28 ocsf under roof deck; 22.8 SEER; 12.5 HSPF heat pump.

  15. DOE ZERH Case Study: Greenhill Contracting, Green Acres #20, #26, #28, New Paltz, NY

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of three DOE 2015 Housing Innovation Award winning custom homes in the cold climate that got a HERS of 26, 28, and 26 without PV or -3, -1, and -3.5 with PV; with R-22 ICFs, 10” ocsf plus 2.7” c ccsf in attic; ICF basements with 4.3” ccsf under slab; tri;e-pane windows; ERVs, ground source heat pumps (COP 5.7).

  16. DOE ZERH Case Study: Mandalay Homes, Vision Hill Lot 1, Glendale, AZ

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning production home in the hot-dry climate that got a HERS 52 without PV, or HERS -2 with PV, with 2x6 16” on center walls with R-14 ocsf plus R-4 rigid exterior; slab on grade with R-8 slab edge; sealed attic with R-31 ocsf under roof deck; 92 AFUE furnace, 15 SEER AC, 100% LED.

  17. DOE ZERH Case Study: United Way of Long Island Housing Development Corporation, Patchogue, NY

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning affordable home in the mixed-humid climate that got HERS 40 without PV, -3 with PV, with 2x4 16: on center walls with R-13.5 dense packed cellulose and 1.5” polyiso rigid; basement with 2.5: polyiso on interior; unvented attic with R-48 ocsf under roof deck; ERV tied to wall hung boiler with hydro coil.

  18. DOE ZERH Case Study: Mantell-Hecathorn Builders, Shenandoah Circle, Durango, CO

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning custom home in the cold climate that got a HERS 50 without PV, or HERS 21 with PV, with 2x6 24” on center walls with R-13 ccsf plus 3.5” blown fiberglass, plus R-10 rigid exterior; R-22 ICF basement walls; vented attic with spray foam over top plates, R-65 blown fiberglass; 96 AFUE furnace, triple-pane windows, 80% LED.

  19. DOE ZERH Case Study: Hammer and Hand, Pumpkin Ridge Passive House, North Plains, OR

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning custom home in the marine climate that got a HERS 49 without PV, or HERS 5 with PV, with 2x4 24” on center walls plus 8” exterior cavity together dense-packed with R-60 cellulose; daylight basement with R-29 rigid EPS foam under slab; vented attic with R-86 blown cellulose; minisplit heat pump; ducted with HRV; 15.5 SEER; 10 HSPF.

  20. DOE ZERH Case Study: New Town Builders, Town Homes at Perrin's Row, Wheat Ridge, CO

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning multifamily project with 26 units in the cold climate that got a HERS 54 without PV, or HERS 28 with PV, with 2x6 24” on center walls with R-23 blown fiberglass; slab foundation with R-10 rigid at slab edge; plus R-10 rigid exterior; R-22 ICF basement walls; vented attic with R-50 blown fiberglass; 92 AFUE furnace, 13 SEER AC.

  1. Building America Whole-House Solutions for Existing Homes: Evaluation of a

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

    Multifamily Retrofit | Department of Energy a Multifamily Retrofit Building America Whole-House Solutions for Existing Homes: Evaluation of a Multifamily Retrofit A 37-unit apartment complex underwent multiple energy retrofit measures, including attic and wall insulation, low-e windows, and energy-efficient appliances, to comply with the Boulder SmartRegs Ordinance. Evaluation of a Multifamily Retrofit in Climate Zone 5 - Boulder, Colorado (765.88 KB) More Documents & Publications

  2. Building America Whole-House Solutions for New Homes: Artistic Homes,

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

    Albuquerque, New Mexico | Department of Energy Artistic Homes, Albuquerque, New Mexico Building America Whole-House Solutions for New Homes: Artistic Homes, Albuquerque, New Mexico Case study of Artistic Homes who worked with Building America research partners Building Science Corporation and BIRA to design homes that achieve HERS <60 without PV or zero net energy with PV with ducts in dropped ceilings, R-50 attic insulation; HRVs with HEPA filters; and extensive air sealing. Artistic

  3. Building America Whole-House Solutions for New Homes: Imagine Homes, San

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

    Antonio, Texas | Department of Energy Imagine Homes, San Antonio, Texas Building America Whole-House Solutions for New Homes: Imagine Homes, San Antonio, Texas Case study of Imagine Homes, who worked with the Building America research partner IBACOS to build HERS-52 homes with spray foam-insulated attics and central fan-integrated supply ventilation. Imagine Homes: Stillwater Ranch - San Antonio, TX (662.1 KB) More Documents & Publications Building America Whole-House Solutions for New

  4. Building America Whole-House Solutions for New Homes: Tindall Homes,

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

    Columbus, New Jersey | Department of Energy Tindall Homes, Columbus, New Jersey Building America Whole-House Solutions for New Homes: Tindall Homes, Columbus, New Jersey Case study of Tindall Homes who worked with Building America research team IBACOS to build 20 HERS-58 homes with R-49 mixed attic insulation, poly-iso foam in advanced framed walls, precast concrete basement walls with rigid foam, tight airsealing, and HRVs Tindall Homes: The Legends at Mansfield - Columbus, NJ (666.77 KB)

  5. Analysis of DOE s Roof Savings Calculator with Comparison to other Simulation Engines

    SciTech Connect (OSTI)

    New, Joshua Ryan; Huang, Yu; Levinson, Ronnen; Mellot, Joe; Sanyal, Jibonananda; Childs, Kenneth W

    2014-01-01

    A web-based Roof Savings Calculator (RSC) has been deployed for the Department of Energy as an industry-consensus tool to help building owners, manufacturers, distributors, contractors and researchers easily run complex roof and attic simulations. This tool employs the latest web technologies and usability design to provide an easy input interface to an annual simulation of hour-by-hour, whole-building performance using the world-class simulation tools DOE-2.1E and AtticSim. Building defaults were assigned based on national averages and can provide estimated annual energy and cost savings after the user selects nothing more than building location. In addition to cool reflective roofs, the RSC tool can simulate multiple roof and attic configurations including different roof slopes, above sheathing ventilation, radiant barriers, low-emittance surfaces, HVAC duct location, duct leakage rates, multiple layers of building materials, ceiling and deck insulation levels, and other parameters. A base case and energy-efficient alternative can be compared side-by-side to generate an energy/cost savings estimate between two buildings. The RSC tool was benchmarked against field data for demonstration homes in Ft. Irwin, CA. However, RSC gives different energy savings estimates than previous cool roof simulation tools so more thorough software and empirical validation proved necessary. This report consolidates much of the preliminary analysis for comparison of RSC s projected energy savings to that from other simulation engines.

  6. Steep-Slope Assembly Testing of Clay and Concrete Tile With and Without Cool Pigmented Colors

    SciTech Connect (OSTI)

    Miller, William A

    2005-11-01

    Cool color pigments and sub-tile venting of clay and concrete tile roofs significantly impact the heat flow crossing the roof deck of a steep-slope roof. Field measures for the tile roofs revealed a 70% drop in the peak heat flow crossing the deck as compared to a direct-nailed asphalt shingle roof. The Tile Roofing Institute (TRI) and its affiliate members are keenly interested in documenting the magnitude of the drop for obtaining solar reflectance credits with state and federal "cool roof" building efficiency standards. Tile roofs are direct-nailed or are attached to a deck with batten or batten and counter-batten construction. S-Misson clay and concrete tile roofs, a medium-profile concrete tile roof, and a flat slate tile roof were installed on fully nstrumented attic test assemblies. Temperature measures of the roof, deck, attic, and ceiling, heat flows, solar reflectance, thermal emittance, and the ambient weather were recorded for each of the tile roofs and also on an adjacent attic cavity covered with a conventional pigmented and directnailed asphalt shingle roof. ORNL measured the tile's underside temperature and the bulk air temperature and heat flows just underneath the tile for batten and counter-batten tile systems and compared the results to the conventional asphalt shingle.

  7. Technology Solutions Case Study: Innovative Retrofit Foundation Insulation Strategies, Minneapolis, Minnesota

    SciTech Connect (OSTI)

    2015-07-01

    Basements in climates 6 & 7 can account for a fraction of a home's total heat loss when fully conditioned. These foundations are a source of moisture, with convection in open block cavities redistributing water from the wall base, usually when heating. Even when block cavities are capped, the cold foundation concrete can act as a moisture source for wood rim joist components that are in contact with the wall. As below-grade basements are increasingly retrofitted for habitable space, cold foundation walls pose increased challenges for moisture durability, energy use, and occupant comfort. To address this challenge, the NorthernSTAR Building America Partnership evaluated a retrofit insulation strategy for foundations that is designed for use with open-core concrete block foundation walls. The three main goals were to improve moisture control, improve occupant comfort, and reduce heat loss.

  8. Reduction of VOC emissions from metal dip coating applications -- Canam Steel Corporation Point of Rocks, MD case study

    SciTech Connect (OSTI)

    Monfet, J.P.

    1997-12-31

    The reduction of VOC emissions from metal dip coating applications is not an environmental constraint, it is an economic opportunity. This case study shows how the industry can reap economic benefits from VOC reductions while improving air quality. The Canam Steel Corporation plant located in Point of Rocks, MD operates dip tanks for primer application on fabricated steel joists and joist girders. This process is presently subject to a regulation that limits the paint VOC content to 3.5 pounds per gallon of coating less water. As a result of the high paint viscosity associated with that regulation, the paint thickness of the dipped steel is thicker than the customers` specifications. Most of the VOC emissions can therefore be associated with the excess of paint applied to the products rather than to the required thickness of the coating. The higher paint usage rate has more than environmental consequences, it increases the cost of the applied coating. The project is to reduce the paint usage by controlling the viscosity of the coating in the tank. Experimental results as well as actual mass balance calculations show that using a higher VOC content paint would reduce the overall VOC emissions. The author explained the project to the Maryland Department of the Environment (MDE) Air and Radiation Management Administration. First, the MDE agreed to develop a new RACT determination for fabricated steel dipping operations. The new regulation would limit the amount of VOC than can be emitted to dip coat a ton of fabricated steel. Second, the MDE agreed to allow experimentation of the higher VOC content paint as a pilot project for the new regulation. This paper demonstrates the need for a RACT determination specific to fabricated steel dipping operations.

  9. Radiant Cooling | Department of Energy

    Energy Savers [EERE]

    Radiant Cooling Radiant cooling cools a floor or ceiling by absorbing the heat radiated from the rest of the room. When the floor is cooled, it is often referred to as radiant ...

  10. The MicroBooNE Experiment - About the Detector

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

    being moved to LArTF. One will be used for liquid nitrogen and the other will be an argon buffer tank. LArTF First Floor This is the ground floor of the new Liquid Argon Test...

  11. Microsoft Word - FINAL 2013 Hydropower Meeting Agenda 060713

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

    Federal Building 1100 Commerce Street Red River Room Floor 7, Room 752A Dallas, Texas ... Federal Building 1100 Commerce Street Red River Room Floor 7, Room 752A Dallas, Texas ...

  12. NTSF Spring 2011 Agenda

    Office of Environmental Management (EM)

    Task Force Meeting (Click for Agenda) Red Rover 3 rd Floor 21B10:00 am - 5:00 pm ... Public Utility Commission, moderating Red Rover 3 rd Floor 5 NTSF Agenda May 10-12, ...

  13. The Power of Choice ? Cold War Patriots Day of Remembrance...

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

    and went to the messy hole in the floor and with his bare hands and that small amount of water, he cleaned the feces from the floor and the hole. The rest of the prisoners grew...

  14. Radiant Heating | Department of Energy

    Office of Environmental Management (EM)

    the cables or tubing in a solid floor and are the oldest form of modern radiant floor systems. The tubing or cable can be embedded in a thick concrete foundation slab (commonly...

  15. Earthquake response of storey building in Jakarta using accelerographs data analysis

    SciTech Connect (OSTI)

    Julius, Admiral Musa; Sunardi, Bambang

    2015-04-24

    As seismotectonic, the Jakarta city will be greatly affected by the earthquake which originated from the subduction zone of the Sunda Strait and south of Java. Some occurrences of earthquakes in these location are often perceived by the occupants in the upper floors of multi-storey buildings in Jakarta but was not perceived by the occupants on the ground floor. The case shows the difference in ground-motion parameters on each floor height. The analysis of the earthquake data recorded by accelerographs on different floors need to be done to know the differences in ground-motion parameters. Data used in this research is accelerograph data installed on several floors in the main building of Meteorology Climatology and Geophysics Agency with a case study of Kebumen earthquake on January 25{sup th} 2014. Parameters analyzed include the Peak Ground Acceleration (PGA), Peak Ground Displacement (PGD), Peak Spectral Acceleration (PSA), Amplification (Ag), and the Effective Duration of earthquake (t{sub e}). Research stages include accelerographs data acquisition in three (3) different floors, conversion and data partition for each component, conversion to units of acceleration, determination of PGA, PGD, PSA, Ag and t{sub e} as well as data analysis. The study shows the value of PGA on the ground floor, 7{sup th} floor and 15{sup th} floors, respectively are 0.016 g, 0.053 g and 0.116 g. PGD on the ground floor, 7{sup th} floor and 15{sup th} floor respectively are 2.15 cm, 2.98 cm and 4.92 cm. PSA on the ground floor, 7{sup th} floor and 15{sup th} floor respectively are 0.067 g, 0.308 g and 0.836 g. Amplification of the peak acceleration value on the ground floor, 7{sup th} floor and 15{sup th} floor to the surface rock are 4.37, 6.07 and 7.30. Effective duration of the earthquake on the ground floor, 7{sup th} floor and 15{sup th} floor respectively are 222.28 s, 202.28 s and 91.58 s. In general, with increasing floor of the building, the value of the

  16. Physical Infrastructure Integration for Trinity, ASC L2 Milestone Review

    SciTech Connect (OSTI)

    Sena, Phillip A.

    2015-09-11

    Design, build, and integrate under-floor electrical and water-cooling distribution system for Trinity/ATS-1 platform.

  17. Bradbury Science Museum

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

    view of museum floor Unravel our Legacy view of museum floor Experience the History view of museum floor Discover the Future view of museum floor Participate with Us Historic Manhattan Project Sites at Los Alamos Featured National Park SitesPotential sites of the Manhattan Project National Historical Park September Newsletter Highlights September NewsletterSeptember issue of @theBradbury is available Hours SUN & MON: 1PM - 5PM TUES-SAT: 10AM - 5PM Free Admission Closed Thanksgiving,

  18. Calutron construction | Y-12 National Security Complex

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

    construction Calutron construction Construction workers pour the concrete floor and footers for a Y-12 Calutron process building

  19. Contract No. DE-AC02-07CH11358 Contract Modification No. 0192

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

    ... Supplies Construction Services Containers Equipment Repair FlooringFurniture Laboratory Equipment Laboratory, Electrical & Safety Supplies MembershipsSubscriptions Metals ...

  20. MEETING MATERIALS: DECEMBER 11, 2015

    Broader source: Energy.gov [DOE]

    Westin Crystal CityCrystal Ballroom V (Located on the Second Floor)1800 Jefferson Davis HighwayArlington, VA 22202

  1. MEETING MATERIALS: JUNE 26, 2015

    Office of Energy Efficiency and Renewable Energy (EERE)

    Westin Crystal CityCrystal Ballroom VI (Located on the Second Floor)1800 Jefferson Davis HighwayArlington, VA 22202

  2. MEETING MATERIALS: JUNE 17, 2016

    Office of Energy Efficiency and Renewable Energy (EERE)

    Westin Crystal CityJefferson III Ballroom (Located on the Second Floor)1800 Jefferson Davis HighwayArlington, VA 22202

  3. DOE Zero Energy Ready Home Case Study: BPC Green Builders, Taft School, Watertown, CT

    Broader source: Energy.gov [DOE]

    Case study of a DOE 2015 Housing Innovation Award winning custom home in the cold climate that got a HERS 33 without PV or HERS -14 with PV, with 8.5” double 2x4 walls with 8.5” (R-32) blown cellulose plus R-6 rigid foam, basement with 3” ccsf on interior plus 2x4 stud walls with R-13 blown cellulose, with R-20 around slab, R-38 under slab; a vented attic with R-100 blown cellulose; a central heat pump; HRV; heat pump water heater; 100% LED; and Passive House Institute U.S.+, LEED platinum, and Living Building Challenge certifications.

  4. DOE Zero Energy Ready Home Case Study: Glastonbury Housesmith, Hickory Drive, South Glastonbury, CT

    Broader source: Energy.gov [DOE]

    Case study of a DOE 2015 Housing Innovation Award winning custom home in a cold climate zone that got a HERS of 29 without PV, -23 with PV; with 2x6 16” on-center walls with 5.5" of blown fiberglass and 2.75” of rigid mineral wool; basement with 4” XPS in exterior walls, 5” FOAMGLAS under slab; R-58 unvented attic with 5” ccsf and 6.5" blown fiberglass under the roof deck; ground source heat pump COP 4.4.

  5. Watch For New PowerSaver Pilot Loan Program in Your Area | Department of

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

    Energy Watch For New PowerSaver Pilot Loan Program in Your Area Watch For New PowerSaver Pilot Loan Program in Your Area May 3, 2011 - 7:30am Addthis Eric Barendsen Energy Technology Program Specialist, Office of Energy Efficiency and Renewable Energy For anybody who has heard about the many benefits of upgrading your home with an energy efficient water heater or furnace-or has wanted to make simple energy-saving home improvements such as insulating their attic, sealing their ducts, and

  6. Best Practices Case Study: David Weekley Homes - Eagle Springs and Waterhaven, Houston, TX

    SciTech Connect (OSTI)

    none,

    2011-04-01

    Case study describing David Weekley Homes, Houston Division, has qualified more than 1,240 homes for the DOE Builders Challenge. Advanced framed 2x6 walls with open headers and two-stud corners allow more room for R-20 damp sprayed cellulose wall cavity insulation that is covered with R-5 rigid XPS foam. A radiant barrier cuts heat gain in the R-38 insulated vented attics. Draft stopping at fireplace and duct chases and behind tubs, gluing sheetrock to framing, and extensive caulking make for air-tight homes at 3.0 ACH50.

  7. DOE Zero Energy Ready Home Case Study: Near Zero Maine Home II - Vassalboro, Maine

    SciTech Connect (OSTI)

    none,

    2014-11-01

    This case study describes a DOE Zero Energy Ready home in Vassalboro, Maine, that scored HERS 35 without PV and HERS 11 with PV. This 1,200 ft2 home has 10.5-inch-thick double-walls with 3 layers of mineral wool batt insulation, an R-20 insulated slab, R-70 cellulose in the attic, extensive air sealing, a mini-split heat pump, an heat recovery ventilator, solar water heating, LED lighting, 3.9 kWh PV, and triple-pane windows.

  8. DOE Zero Energy Ready Home Case Study: Healthy Efficient Homes - Spirit Lake, Iowa

    SciTech Connect (OSTI)

    none,

    2014-11-01

    This case study describes a DOE Zero Energy Ready Home in Spirit Lake, Iowa, that scored HERS 41 without PV and HERS 28 with PV. This 3,048 ft2 custom home has advanced framed walls filled with 1.5 inches closed-cell spray foam, a vented attic with spray foam-sealed top plates and blown fiberglass over the ceiling deck. R-23 basement walls are ICF plus two 2-inch layers of EPS. The house also has a mini-split heat pump, fresh air fan intake, and a solar hot water heater.

  9. Flexible Residential Test Facility: Impact of Infiltration and Ventilation on Measured Heating Season Energy and Moisture Levels

    SciTech Connect (OSTI)

    2013-09-01

    Two identical laboratory homes designed to model existing Florida building stock were sealed and tested to 2.5 ACH50. Then, one was made leaky with 70% leakage through the attic and 30% through windows, to a tested value of 9 ACH50. Reduced energy use was measured in the tighter home (2.5 ACH50) in the range of 15% to 16.5% relative to the leaky (9 ACH50) home. Internal moisture loads resulted in higher dew points inside the tight home than the leaky home. Window condensation and mold growth occurred inside the tight home.

  10. DOE Zero Energy Ready Home Case Study, Caldwell and Johnson, Exeter, RI,

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

    Custom Home | Department of Energy Study, Caldwell and Johnson, Exeter, RI, Custom Home DOE Zero Energy Ready Home Case Study, Caldwell and Johnson, Exeter, RI, Custom Home Case study of a DOE Zero Energy Ready Home in Exeter, Rhode Island, that scored HERS 43 without PV. This 2,000 ft2 custom home has a spray- foamed attic and walls, plus rigid foam sheathing, ducted mini-split heat pumps, and an HRV. BA_ZeroEnergyReady_CaldwellJohnson_062314.pdf (1.12 MB) More Documents & Publications

  11. Buildings Energy Data Book: 3.6 Office Building Markets and Companies

    Buildings Energy Data Book [EERE]

    7 Advanced Energy Design Guide for Small Office Buildings (1) Shell Percent Glass (WWR) 20-40% Window U-Factor 0.33-0.56 SHGC 0.31-0.49 Wall R-Value 7.6-15.2 Roof R-Value Attic 30-60 Insulation Above Deck 15-30 Wall Material Mass (HC > 7 Btu/ft^2) Lighting Average Power Density (Watts/SF) 0.9 System and Plant System and Plant Packaged Single-Zone Packaged Single-Zone w/ Economizer Cooling Capacity > 54 kBtu Heating Plant: Gas Furnace 80% Combustion Efficiency Cooling Plant: Air conditioner

  12. Buildings Energy Data Book: 3.9 Educational Facilities

    Buildings Energy Data Book [EERE]

    8 Advanced Energy Design Guide for Typical Educational Facilities (1) Shell Percent Glass Maximum 35% Window U-Factor 0.33 - 0.56 Wall R-Value 5.7 - 15.2 Roof R-Value Attic 30.0 - 60.0 Insulation Above Deck 25.0 Wall Material Mass: Heat Capacity > 7 Btu/SF*F Lighting Average Power Density(Watts/ft.^2) With Daylighting 1.2 Without Daylighting 0.9 - 1.1 System and Plant System and Plant 1 Central System Packaged Multi-Zone w/ Economizer Comply with ASHRAE 90.1 Heating Plant: Gas Boiler 80-85

  13. DOE Zero Energy Ready Home Case Study: Weiss Building & Development LLC.,

    Energy Savers [EERE]

    Glendale, AZ | Department of Energy Vision Hill Lot 1, Glendale, AZ DOE Zero Energy Ready Home Case Study: Mandalay Homes, Vision Hill Lot 1, Glendale, AZ Case study of a DOE 2015 Housing Innovation Award winning production home in the hot-dry climate that got a HERS 52 without PV, or HERS -2 with PV, with 2x6 16" on center walls with R-14 ocsf plus R-4 rigid exterior; slab on grade with R-8 slab edge; sealed attic with R-31 ocsf under roof deck; 92 AFUE furnace, 15 SEER AC, 100% LED.

  14. DOE appoints three new members to environmental advisory board | Department

    Energy Savers [EERE]

    Homes | Department of Energy e2 Homes, Winter Park, FL, Custom Homes DOE Zero Energy Ready Home Case Study: e2 Homes, Winter Park, FL, Custom Homes Case study of a DOE Zero Energy Ready Home in Winter Park, FL, that scored HERS 57 without PV or HERS -7 with PV. This 4,305-square-foot custom home has autoclaved aerated concrete walls, a sealed attic with R-20 spray foam, and ductless mini-split heat pumps. DOE ZERH case study: e2 Homes (1.07 MB) More Documents & Publications Building

  15. How Close Are We to Nuclear Fusion? | GE Global Research

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

    Are You Keeping Your Home Cool This Summer? How Are You Keeping Your Home Cool This Summer? July 21, 2011 - 8:06am Addthis This week, Allison shared her experience of adding insulation to her attic. The result? A better-insulated home with less use of her air conditioning system. It's one of several things she's doing to keep her home cool during the summer (though insulation is effective year round). How are you keeping your home cool this summer? Have you taken any steps to improve the

  16. DOE Zero Energy Ready Home: Healthy Efficient Homes- Spirit Lake, Iowa

    Broader source: Energy.gov [DOE]

    Case study of a DOE Zero Energy Ready Home in Spirit Lake, Iowa, that scored HERS 41 without PV and HERS 28 with PV. This 3,048 ft2 custom home has advanced framed walls filled with 1.5 inches closed-cell spray foam, a vented attic with spray foam-sealed top plates and blown fiberglass over the ceiling deck. R-23 basement walls are ICF plus two 2-inch layers of EPS. The house also has a mini-split heat pump, fresh air fan intake, and a solar hot water heater.

  17. Critical Question #5: What are Recent Innovations in Air Distribution

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

    Systems? | Department of Energy 5: What are Recent Innovations in Air Distribution Systems? Critical Question #5: What are Recent Innovations in Air Distribution Systems? The majority of heating systems are forced air. What kinds of innovations have been developed to make these systems more efficient? cq5_duct_splitter_box_beach.pdf (4.08 MB) cq5_attic_ducts_aldrich.pdf (4.92 MB) More Documents & Publications DOE Commercial Building Energy Asset Rating Program Focus Groups with Primary

  18. DOE Zero Energy Ready Home Case Study: Durable Energy Builders - Houston, Texas

    SciTech Connect (OSTI)

    none,

    2014-11-01

    This case study describes a DOE Zero Energy Ready Home in Houston, Texas, that scored HERS 39 without PV and HERS 29 with PV. This 5,947 ft2 custom home has 11.5-inch ICF walls. The attic is insulated along the roof line with 5 to 7 inches of open-cell spray foam. Most of the home's drinking water is supplied by a 11,500-gallon rainwater cistern. Hurricane strapping connects the roof to the walls. The triple-pane windows are impact resistant. The foundation is a raised slab.

  19. LED Holiday Lights: Festive, Safe, and Efficient! | Department of Energy

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

    LED Holiday Lights: Festive, Safe, and Efficient! LED Holiday Lights: Festive, Safe, and Efficient! November 23, 2010 - 6:30am Addthis Allison Casey Senior Communicator, NREL This week brings a day that many people look forward to all year-and I'm not talking about Thanksgiving, or Black Friday. I'm talking about that magical day when it's finally okay to drag the dusty boxes from the basement or attic, to lovingly sort and display your decorations, to untangle your light strings and set up the

  20. Insulation fact sheet

    SciTech Connect (OSTI)

    1997-08-01

    Electricity bills, oil bills, gas bills - all homeowners pay for one or more of these utilities, and wish they paid less. Often many of us do not really know how to control or reduce our utility bills. We resign ourselves to high bills because we think that is the price we have to pay for a comfortable home. We encourage our children to turn off the lights and appliances, but may not recognize the benefits of insulating the attic. This publication provides facts relative to home insulation. It discusses where to insulate, what products to use, the decision making process, installation options, and sources of additional information.

  1. DOE Zero Energy Ready Home Case Study: Ithaca Neighborhood Housing

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

    Services, Ithaca, NY | Department of Energy Ithaca Neighborhood Housing Services, Ithaca, NY DOE Zero Energy Ready Home Case Study: Ithaca Neighborhood Housing Services, Ithaca, NY Case study of a DOE Zero Energy Ready Home in Ithaca, NY, that scored HERS 50 without PV. These 1,160-square-foot affordable town houses have R-20 advance framed walls, R-52 blown cellulose in attic, radiant heat with 92.5 AFUE boiler, and triple-pane windows. Ithaca Neighborhood Housing Services - Ithaca, NY

  2. DOE Zero Energy Ready Home Case Study: Palo Duro Homes Inc., Albuquerque,

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

    NM, Production | Department of Energy Homes Inc., Albuquerque, NM, Production DOE Zero Energy Ready Home Case Study: Palo Duro Homes Inc., Albuquerque, NM, Production Case study of a DOE Zero Energy Ready Home in Aztec, NM, that scored HERS 49 without PV. This 2,064-square-foot production home has advance framed walls, a spray foamed attic, an air source heat pump, and an HRV. Palo Duro Homes, Inc.- Albuquerque, NM (2.03 MB) More Documents & Publications DOE Zero Energy Ready Home Case

  3. DOE Zero Energy Ready Home Case Study: Preferred Builders, Old Greenwich,

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

    CT, Custom | Department of Energy Home Case Study: Preferred Builders, Old Greenwich, CT, Custom DOE Zero Energy Ready Home Case Study: Preferred Builders, Old Greenwich, CT, Custom Case study of a DOE Zero Energy Ready Home in Old Greenwich, CT, that scored HERS 42 without PV or HERS 20 with PV. This 2,700-square-foot custom home has advanced framed walls with R-24 blown cellulose plus R-7.5 EPS rigid foam, membrane-coated OSB, a closed-cell spray foamed attic, R-13 closed-cell spray foam

  4. DOE Zero Energy Ready Home Case Study: Weiss Building & Development LLC,

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

    System Home, River Forest, IL | Department of Energy LLC, System Home, River Forest, IL DOE Zero Energy Ready Home Case Study: Weiss Building & Development LLC, System Home, River Forest, IL Case study of a DOE Zero Energy Ready Home in River Forest, IL, that scored HERS 17 without PV. This 4,763-square-foot custom passive house has R-54 ICF walls, a vented attic with R-100 blown fiberglass, plus R-40 rigid EPS under the slab, triple-pane windows, two ductless mini-split heat pumps, and

  5. DOE Zero Energy Ready Home Case Study: Weiss Building & Development LLC.,

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

    Custom Home, Downers Grove, IL | Department of Energy LLC., Custom Home, Downers Grove, IL DOE Zero Energy Ready Home Case Study: Weiss Building & Development LLC., Custom Home, Downers Grove, IL Case study of a DOE Zero Energy Ready Home in Downers Grove, IL, that scored HERS 35 without PV. This 3,600-square-foot custom home has advanced framed walls with R-23 dense-packed fiberglass plus R-13 rigid polyiso, a sealed attic with open-cell spray foam, a pier foundation, and 95% efficient

  6. DOE Zero Energy Ready Home Case Study: e2 Homes, Winter Park, FL, Custom

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

    Homes | Department of Energy e2 Homes, Winter Park, FL, Custom Homes DOE Zero Energy Ready Home Case Study: e2 Homes, Winter Park, FL, Custom Homes Case study of a DOE Zero Energy Ready Home in Winter Park, FL, that scored HERS 57 without PV or HERS -7 with PV. This 4,305-square-foot custom home has autoclaved aerated concrete walls, a sealed attic with R-20 spray foam, and ductless mini-split heat pumps. DOE ZERH case study: e2 Homes (1.07 MB) More Documents & Publications Building

  7. DOE Zero Energy Ready Home: Near Zero Maine Home II, Vassalboro, Maine |

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

    Department of Energy Home: Near Zero Maine Home II, Vassalboro, Maine DOE Zero Energy Ready Home: Near Zero Maine Home II, Vassalboro, Maine Case study of a DOE Zero Energy Ready home in Vassalboro, Maine, that scored HERS 35 without PV and HERS 11 with PV. This 1,200 ft2 home has 10.5-inch-thick double-walls with 3 layers of mineral wool batt insulation, an R-20 insulated slab, R-70 cellulose in the attic, extensive air sealing, a mini-split heat pump, an heat recovery ventilator, solar

  8. Measure Guideline: Combustion Safety for Natural Draft Appliances Through Appliance Zone Isolation

    SciTech Connect (OSTI)

    Fitzgerald, J.; Bohac, D.

    2014-04-01

    This measure guideline covers how to assess and carry out the isolation of natural draft combustion appliances from the conditioned space of low-rise residential buildings. It deals with combustion appliances located either within the living space in enclosed closets or side rooms or outside the living space in an adjacent area like an attic or garage. This subset of houses does not require comprehensive combustion safety tests and simplified prescriptive procedures can be used to address safety concerns. This allows residential energy retrofit contractors inexperienced in advanced combustion safety testing to effectively address combustion safety issues and allow energy retrofits including tightening and changes to distribution and ventilation systems to proceed.

  9. DOE ZERH Case Study: BPC Green Builders, Taft School, Watertown, CT

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning custom home in the cold climate that got a HERS 33 without PV or HERS -14 with PV, with 8.5” double 2x4 walls with 8.5” (R-32) blown cellulose plus R-6 rigid foam, basement with 3” ccsf on interior plus 2x4 stud walls with R-13 blown cellulose, with R-20 around slab, R-38 under slab; a vented attic with R-100 blown cellulose; a central heat pump; HRV; heat pump water heater; 100% LED; and Passive House Institute U.S.+, LEED platinum, and Living Building Challenge certifications.

  10. Building America Zero Energy Ready Home Case Study: Imery Group, Proud

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

    Green Home, Serenbe GA | Department of Energy Zero Energy Ready Home Case Study: Imery Group, Proud Green Home, Serenbe GA Building America Zero Energy Ready Home Case Study: Imery Group, Proud Green Home, Serenbe GA Case study describing the first DOE-certified zero energy ready home in Georgia, featuring 2x6 advanced framed wall, spray foamed walls and attic plus rigid foam and coated OSB. The Imery Group: Proud Green Home - Serenbe, GA (3.58 MB) More Documents & Publications DOE Zero

  11. Comfort and HVAC Performance for a New Construction Occupied Test House in Roseville, California

    SciTech Connect (OSTI)

    Burdick, A.

    2013-10-01

    K. Hovnanian® Homes constructed a 2,253-ft2 single-story slab-on-grade ranch house for an occupied test house (new construction) in Roseville, California. One year of monitoring and analysis focused on the effectiveness of the space conditioning system at maintaining acceptable temperature and relative humidity levels in several rooms of the home, as well as room-to-room differences and the actual measured energy consumption by the space conditioning system. In this home, the air handler unit (AHU) and ducts were relocated to inside the thermal boundary. The AHU was relocated from the attic to a mechanical closet, and the ductwork was located inside an insulated and air-sealed bulkhead in the attic. To describe the performance and comfort in the home, the research team selected representative design days and extreme days from the annual data for analysis. To ensure that temperature differences were within reasonable occupant expectations, the team followed Air Conditioning Contractors of America guidance. At the end of the monitoring period, the occupant of the home had no comfort complaints in the home. Any variance between the modeled heating and cooling energy and the actual amounts used can be attributed to the variance in temperatures at the thermostat versus the modeled inputs.

  12. Comfort and HVAC Performance for a New Construction Occupied Test House in Roseville, California

    SciTech Connect (OSTI)

    Burdick, A.

    2013-10-01

    K. Hovnanian(R) Homes(R) constructed a 2,253-ft2 single-story slab-on-grade ranch house for an occupied test house (new construction) in Roseville, California. One year of monitoring and analysis focused on the effectiveness of the space conditioning system at maintaining acceptable temperature and relative humidity levels in several rooms of the home, as well as room-to-room differences and the actual measured energy consumption by the space conditioning system. In this home, the air handler unit (AHU) and ducts were relocated to inside the thermal boundary. The AHU was relocated from the attic to a mechanical closet, and the ductwork was located inside an insulated and air-sealed bulkhead in the attic. To describe the performance and comfort in the home, the research team selected representative design days and extreme days from the annual data for analysis. To ensure that temperature differences were within reasonable occupant expectations, the team followed Air Conditioning Contractors of America guidance. At the end of the monitoring period, the occupant of the home had no comfort complaints in the home. Any variance between the modeled heating and cooling energy and the actual amounts used can be attributed to the variance in temperatures at the thermostat versus the modeled inputs.

  13. Measure Guideline: Buried and/or Encapsulated Ducts

    SciTech Connect (OSTI)

    Shapiro, C.; Zoeller, W.; Mantha, P.

    2013-08-01

    Buried and/or encapsulated ducts (BEDs) are a class of advanced, energy-efficiency strategies intended to address the significant ductwork thermal losses associated with ducts installed in unconditioned attics. BEDs are ducts installed in unconditioned attics that are covered in loose-fill insulation and/or encapsulated in closed cell polyurethane spray foam insulation. This Measure Guideline covers the technical aspects of BEDs as well as the advantages, disadvantages, and risks of BEDs compared to other alternative strategies. This guideline also provides detailed guidance on installation of BEDs strategies in new and existing homes through step-by-step installation procedures. This Building America Measure Guideline synthesizes previously published research on BEDs and provides practical information to builders, contractors, homeowners, policy analysts, building professions, and building scientists. Some of the procedures presented here, however, require specialized equipment or expertise. In addition, some alterations to duct systems may require a specialized license. Persons implementing duct system improvements should not go beyond their expertise or qualifications. This guideline provides valuable information for a building industry that has struggled to address ductwork thermal losses in new and existing homes. As building codes strengthen requirements for duct air sealing and insulation, flexibility is needed to address energy efficiency goals. While ductwork in conditioned spaces has been promoted as the panacea for addressing ductwork thermal losses, BEDs installations approach - and sometimes exceed - the performance of ductwork in conditioned spaces.

  14. Smoldering combustion hazards of thermal insulation materials

    SciTech Connect (OSTI)

    Ohlemiller, T.J.; Rogers, F.E.

    1980-07-01

    Work on the smolder ignitability in cellulosic insulation and on thermal analytical characterization of the oxidation of this material is presented. Thermal analysis (TGA and DSC) shows that both retarded and unretarded cellulosic insulation oxidizes in two overall stages, both of which are exothermic. The second stage (oxidation of the char left as a residue of the first stage) is much more energetic on a unit mass basis than the first. However, kinetics and a sufficient exothermicity make the first stage responsible for ignition in most realistic circumstances. Existing smolder retardants such as boric acid have their major effect on the kinetics of the second oxidation stage and thus produce only a rather small (20/sup 0/C) increase in smolder ignition temperature. Several simplified analogs of attic insulations have been tested to determine the variability of minimum smolder ignition temperature. These employed planar or tubular constant temperature heat sources in a thermal environment quite similar to a realistic attic application. Go/no-go tests provided the borderline (minimum) ignition temperature for each configuration. The wide range (150/sup 0/C) of minimum ignition temperatures confirmed the predominant dependence of smolder ignition on heat flow geometry. Other factors (bulk density, retardants) produced much less effect on ignitability.

  15. From Energy Audits to Home Performance: 30 Years of Articles in Home Energy Magazine

    SciTech Connect (OSTI)

    Meier, Alan

    2014-08-11

    Home Energy Magazine has been publishing articles about residential energy efficiency for 30 years. Its goal has been to disseminate technically reliable and neutral information to the practitioners, that is, professionals in the business of home energy efficiency. The articles, editorials, letters, and advertisements are a kind of window on the evolution of energy conservation technologies, policies, and organizations. Initially, the focus was on audits and simple retrofits, such as weatherstripping and insulation. Instrumentation was sparse sometimes limited to a ruler to measure depth of attic insulation and a blower door was exotic. CFLs were heavy, awkward bulbs which might, or might not, fit in a fixture. Saving air conditioning energy was not a priority. Solar energy was only for the most adventurous. Thirty years on, the technologies and business have moved beyond just insulating attics to the larger challenge of delivering home performance and achieving zero net energy. This shift reflects the success in reducing space heating energy and the need to create a profitable industry by providing more services. The leading edge of the residential energy services market is becoming much more sophisticated, offering both efficiency and solar systems. The challenge is to continue providing relevant and reliable information in a transformed industry and a revolutionized media landscape.

  16. PERFORMANCE EVALUATION OF A SUSTAINABLE AND ENERGY EFFICIENT RE-ROOFING TECHNOLOGY USING FIELD-TEST DATA

    SciTech Connect (OSTI)

    Biswas, Kaushik; Miller, William A; Childs, Phillip W; Kosny, Jan; Kriner, Scott

    2011-01-01

    Three test attics were constructed to evaluate a new sustainable method of re-roofing utilizing photo-voltaic (PV) laminates, metal roofing panels, and PCM heat sink in the Envelope Systems Research Apparatus (ESRA) facility in the ORNL campus. Figure 1 is a picture of the three attic roofs located adjacent to each other. The leftmost roof is the conventional shingle roof, followed by the metal panel roof incorporating the cool-roof coating, and third from left is the roof with the PCM. On the PCM roof, the PV panels are seen as well; they're labelled from left-to-right as panels 5, 6 and 7. The metal panel roof consists of three metal panels with the cool-roof coating; in further discussion this is referred to as the infrared reflective (IRR) metal roof. The IRR metal panels reflect the incoming solar radiation and then quickly re-emit the remaining absorbed portion, thereby reducing the solar heat gain of the attic. Surface reflectance of the panels were measured using a Solar Spectrum Reflectometer. In the 0.35-2.0 {mu}m wavelength interval, which accounts for more than 94% of the solar energy, the IRR panels have an average reflectance of 0.303. In the infrared portion of the spectrum, the IRR panel reflectance is 0.633. The PCM roof consists of a layer of macro-encapsulated bio-based PCM at the bottom, followed by a 2-cm thick layer of dense fiberglass insulation with a reflective surface on top, and metal panels with pre-installed PV laminates on top. The PCM has a melting point of 29 C (84.2 F) and total enthalpy between 180 and 190 J/g. The PCM was macro-packaged in between two layers of heavy-duty plastic foil forming arrays of PCM cells. Two air cavities, between PCM cells and above the fiberglass insulation, helped the over-the-deck natural air ventilation. It is anticipated that during summer, this extra ventilation will help in reducing the attic-generated cooling loads. The extra ventilation, in conjunction with the PCM heat sink, are used to minimize

  17. Empirically Derived Strength of Residential Roof Structures for Solar Installations.

    SciTech Connect (OSTI)

    Dwyer, Stephen F.; Sanchez, Alfred; Campos, Ivan A.; Gerstle, Walter H.

    2014-12-01

    Engineering certification for the installation of solar photovoltaic (PV) modules on wood roofs is often denied because existing wood roofs do not meet structural design codes. This work is intended to show that many roofs are actually sufficiently strong given the conservatism in codes, documented allowable strengths, roof structure system effects, and beam composite action produced by joist-sheathing interaction. This report provides results from a testing program to provide actual load carrying capacity of residential rooftops. The results reveal that the actual load carrying capacity of structural members and systems tested are significantly stronger than allowable loads provided by the International Residential Code (IRC 2009) and the national structural code found in Minimum Design Loads for Buildings and Other Structures (ASCE 7-10). Engineering analysis of residential rooftops typically ignores the system affects and beam composite action in determining rooftop stresses given a potential PV installation. This extreme conservatism combined with conservatism in codes and published allowable stress values for roof building materials (NDS 2012) lead to the perception that well built homes may not have adequate load bearing capacity to enable a rooftop PV installation. However, based on the test results presented in this report of residential rooftop structural systems, the actual load bearing capacity is several times higher than published values (NDS 2012).

  18. Homodyne impulse radar hidden object locator

    DOE Patents [OSTI]

    McEwan, T.E.

    1996-04-30

    An electromagnetic detector is designed to locate an object hidden behind a separator or a cavity within a solid object. The detector includes a PRF generator for generating 2 MHz pulses, a homodyne oscillator for generating a 2 kHz square wave, and for modulating the pulses from the PRF generator. A transmit antenna transmits the modulated pulses through the separator, and a receive antenna receives the signals reflected off the object. The receiver path of the detector includes a sample and hold circuit, an AC coupled amplifier which filters out DC bias level shifts in the sample and hold circuit, and a rectifier circuit connected to the homodyne oscillator and to the AC coupled amplifier, for synchronously rectifying the modulated pulses transmitted over the transmit antenna. The homodyne oscillator modulates the signal from the PRF generator with a continuous wave (CW) signal, and the AC coupled amplifier operates with a passband centered on that CW signal. The present detector can be used in several applications, including the detection of metallic and non-metallic objects, such as pipes, studs, joists, nails, rebars, conduits and electrical wiring, behind wood wall, ceiling, plywood, particle board, dense hardwood, masonry and cement structure. The detector is portable, light weight, simple to use, inexpensive, and has a low power emission which facilitates the compliance with Part 15 of the FCC rules. 15 figs.

  19. Homodyne impulse radar hidden object locator

    DOE Patents [OSTI]

    McEwan, Thomas E.

    1996-01-01

    An electromagnetic detector is designed to locate an object hidden behind a separator or a cavity within a solid object. The detector includes a PRF generator for generating 2 MHz pulses, a homodyne oscillator for generating a 2 kHz square wave, and for modulating the pulses from the PRF generator. A transmit antenna transmits the modulated pulses through the separator, and a receive antenna receives the signals reflected off the object. The receiver path of the detector includes a sample and hold circuit, an AC coupled amplifier which filters out DC bias level shifts in the sample and hold circuit, and a rectifier circuit connected to the homodyne oscillator and to the AC coupled amplifier, for synchronously rectifying the modulated pulses transmitted over the transmit antenna. The homodyne oscillator modulates the signal from the PRF generator with a continuous wave (CW) signal, and the AC coupled amplifier operates with a passband centered on that CW signal. The present detector can be used in several applications, including the detection of metallic and non-metallic objects, such as pipes, studs, joists, nails, rebars, conduits and electrical wiring, behind wood wall, ceiling, plywood, particle board, dense hardwood, masonry and cement structure. The detector is portable, light weight, simple to use, inexpensive, and has a low power emission which facilitates the compliance with Part 15 of the FCC rules.

  20. Excavationless Exterior Foundation Insulation Field Study

    SciTech Connect (OSTI)

    Schirber, T.; Mosiman, G.; Ojczyk, C.

    2014-10-01

    Building science research supports installing exterior (soil side) foundation insulation as the optimal method to enhance the hygrothermal performance of new homes. With exterior foundation insulation, water management strategies are maximized while insulating the basement space and ensuring a more even temperature at the foundation wall. However, such an approach can be very costly and disruptive when applied to an existing home, requiring deep excavation around the entire house. The NorthernSTAR Building America Partnership team implemented an innovative, minimally invasive foundation insulation upgrade technique on an existing home. The approach consisted of using hydrovac excavation technology combined with a liquid insulating foam. The team was able to excavate a continuous 4" wide by 4' to 5' deep trench around the entire house, 128 linear feet, except for one small part under the stoop that was obstructed with concrete debris. The combination pressure washer and vacuum extraction technology also enabled the elimination of large trenches and soil stockpiles normally produced by backhoe excavation. The resulting trench was filled with liquid insulating foam, which also served as a water-control layer of the assembly. The insulation was brought above grade using a liquid foam/rigid foam hybrid system and terminated at the top of the rim joist. Cost savings over the traditional excavation process ranged from 23% to 50%. The excavationless process could result in even greater savings since replacement of building structures, exterior features, utility meters, and landscaping would be minimal or non-existent in an excavationless process.

  1. Excavationless Exterior Foundation Insulation Field Study

    SciTech Connect (OSTI)

    Schirber, T.; Mosiman, G.; Ojczyk, C.

    2014-09-01

    Building science research supports installing exterior (soil side) foundation insulation as the optimal method to enhance the hygrothermal performance of new homes. With exterior foundation insulation, water management strategies are maximized while insulating the basement space and ensuring a more even temperature at the foundation wall. However, such an approach can be very costly and disruptive when applied to an existing home, requiring deep excavation around the entire house. The NorthernSTAR Building America Partnership team implemented an innovative, minimally invasive foundation insulation upgrade technique on an existing home. The approach consisted of using hydrovac excavation technology combined with liquid insulating foam. The team was able to excavate a continuous 4 inches wide by 4 feet to 5 feet deep trench around the entire house, 128 linear feet, except for one small part under the stoop that was obstructed with concrete debris. The combination pressure washer and vacuum extraction technology also enabled the elimination of large trenches and soil stockpiles normally produced by backhoe excavation. The resulting trench was filled with liquid insulating foam, which also served as a water-control layer of the assembly. The insulation was brought above grade using a liquid foam/rigid foam hybrid system and terminated at the top of the rim joist. Cost savings over the traditional excavation process ranged from 23% to 50%. The excavationless process could result in even greater savings since replacement of building structures, exterior features, utility meters, and landscaping would be minimal or non-existent in an excavationless process.

  2. Building America Case Study: Excavationless Exterior-Side Foundation Insulation for Existing Homes, Minneapolis, Minnesota (Fact Sheet)

    SciTech Connect (OSTI)

    NorthernSTAR

    2014-09-01

    Building science research supports installing exterior (soil side) foundation insulation as the optimal method to enhance the hygrothermal performance of new homes. With exterior foundation insulation, water management strategies are maximized while insulating the basement space and ensuring a more even temperature at the foundation wall. However, such an approach can be very costly and disruptive when applied to an existing home, requiring deep excavation around the entire house. The NorthernSTAR Building America Partnership team implemented an innovative, minimally invasive foundation insulation upgrade technique on an existing home. The approach consisted of using hydrovac excavation technology combined with a liquid insulating foam. The team was able to excavate a continuous 4" wide by 4' to 5' deep trench around the entire house, 128 linear feet, except for one small part under the stoop that was obstructed with concrete debris. The combination pressure washer and vacuum extraction technology also enabled the elimination of large trenches and soil stockpiles normally produced by backhoe excavation. The resulting trench was filled with liquid insulating foam, which also served as a water-control layer of the assembly. The insulation was brought above grade using a liquid foam/rigid foam hybrid system and terminated at the top of the rim joist. Cost savings over the traditional excavation process ranged from 23% to 50%. The excavationless process could result in even greater savings since replacement of building structures, exterior features, utility meters, and landscaping would be minimal or non-existent in an excavationless process.

  3. Village WInd Technology Update

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

    In traveling, I have observed, that in those parts where the inhabitants can have neither ... Walls 17% Floor 32% Wind Heat for Homes Benefits: * Lower heating costs * Scale * ...

  4. Residential Buildings Historical Publications reports, data and...

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

    97 Average Electricity Residential Buildings Consumption Expenditures Total per Floor- per Square ... Source: Energy Information Administration, Office of Energy Markets and End ...

  5. APS Seminars & Meetings | Advanced Photon Source

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    Science Series A lunchtime gathering with presentations of the newest results from the experiment hall floor. Speakers are not announced in advance. Monthly APS Colloquium A...

  6. CX-009303: Categorical Exclusion Determination | Department of...

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

    provide new heating, ventilation and air conditioning, roofing, insulation, level concrete floor surface, utilities, furniture, gas cabinets and a lab hood, and siding and...

  7. Vermont Department of Public Service | Open Energy Information

    Open Energy Info (EERE)

    navigation, search Name: Vermont Department of Public Service Address: 112 State Street Third Floor Place: Montpelier, Vermont Country: United States Zip: 05620-2601 Phone...

  8. Green version of the EERE PowerPoint template, for use with PowerPoint...

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

    energy efficiency will be set back 20 years Examples of Discomfort * Cold floor - Hot head - Stratification * Air blowing on person - Poor supply outlet location, ...

  9. BWX TYmes, October 2003

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    Administration conference in Washington, D.C., ... Diskless technology has several benefits in ... and factory floor systems. Network- ing, remote computers and remote ...

  10. Oak Ridge Associated Universities

    Office of Legacy Management (LM)

    ... Floor surfaces are generally rough and . "pitted" and are covered with a thin layer of oil absorbant material and dried oil and grease. Machining equipment and material storage ...

  11. Safety & Training | Advanced Photon Source

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    Safety & Training The UES Group provides facility ESH oversight for all user experiment safety and day-to-day beamline activities. The UES Floor Coordinators are deployed around...

  12. California Department of Fish & Wildlife | Open Energy Information

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    & Wildlife Jump to: navigation, search Logo: California Department of Fish & Wildlife Name: California Department of Fish & Wildlife Address: 1416 9th St, 12th Floor Place:...

  13. Operating Experience Summary, 2013-03

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

    the floor below. He fell onto his right side, suffering multiple fractures and damaged lungs. PE-1 immediately called for assistance, and coworkers con- tacted BNL fire rescue....

  14. National Security Science - April 2013

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    Megawatts of power, millions of gallons of water, a football-field-size floor Turning Big Data into fast data Solving the roadblock for tomorrow's exascale supercomputing...

  15. Resolute Marine Energy Inc | Open Energy Information

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    Resolute Marine Energy Inc Jump to: navigation, search Name: Resolute Marine Energy Inc Address: 3 Post Office Square 3rd floor Place: Massachusetts Country: United States Zip:...

  16. Building America Technlogy Solutions for New and Existing Homes...

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

    and mitigate moisture issues: dimple mat; spray polyurethane foam insulation; moisture and thermal management systems for the floor; and paperless gypsum board and steel framing. ...

  17. LEDSGP/contacts/AFOLU List Serve | Open Energy Information

    Open Energy Info (EERE)

    LEDSGPcontactsAFOLU List Serve < LEDSGP Jump to: navigation, search LEDS AFOLU Working Group @ Global Environment Centre, 2nd Floor, Wisma Hing, 78, Jalan SS272, 47300 Petaling...

  18. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    ... USDOE Office of Nonproliferation and National Security (NN) (United States) USDOE ... and utilization (1) floors (1) geographic information systems (1) indiana (1) ...

  19. Microsoft Word - Final SA-Nov 2012 Camera Ready.doc

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

    ... Construction, operation, and maintenance of the Selected Remedy was accomplished through ... of the modernization cycle, resulting in fluctuations in overall facility floor space. ...

  20. Numerical Modeling At Coso Geothermal Area (2010) | Open Energy...

    Open Energy Info (EERE)

    model was developed using Poly3D to simulate the distribution and magnitude of stress concentration in the vicinity of the borehole floor, and determine the conditions...

  1. Department

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    Certified Mail March 16,2010 Ms. Susan Thauer Christie Pabarue Mortensen and Young 1880 John F. Kennedy Boulevard io" Floor Philadelphia, Pennsylvania 19103 Dear Ms. Thauer:...

  2. NATIONAL LEAD COMPANY OF OHIO A SYBSIDIAR" OF NL INOVST*IE*....

    Office of Legacy Management (LM)

    ... This combination of distance and shielding provided satisfactory radiaticn levels in the tractor cab and was used during the rest of the operation. Drums of trash, floor sweepings, ...

  3. MHK Technologies/Denniss Auld Turbine | Open Energy Information

    Open Energy Info (EERE)

    and reliability and reduces the need for maintenance. The turbine uses a sensor system with a pressure transducer that measures the pressure exerted on the ocean floor by...

  4. Microsoft Word - Summary_PBS-56-CFN-TBS-Conection_Pipes.docx

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

    floors, walls and ceilings - Perform the relevant analyses (ex. fire analysis and seismic analysis) related to the credit of safety given to the pipings that are Hard Core...

  5. LG Chem Ltd | Open Energy Information

    Open Energy Info (EERE)

    of petrochemical goods, plastics, flooring and automobile parts. They manufacture Lithium ion batteries. Coordinates: 37.557121, 126.977379 Show Map Loading map......

  6. A Geochemical Model of the Kilauea East Rift Zone | Open Energy...

    Open Energy Info (EERE)

    to southwest-trending complex of dikes and fractures extending more than 100 kilometers from the summit caldera to the ocean floor. Geologic, petrologic, and geophysical...

  7. DOE-ID Operations Summary

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

    ... Research Office Building, the bolt head a floor jack being used to hoist an office partition inadvertently pushed through the electrical raceway, resulting in an electrical short. ...

  8. GigaCrete Inc | Open Energy Information

    Open Energy Info (EERE)

    navigation, search Name: GigaCrete Inc Place: Scottsdale, Arizona Zip: 85260 Sector: Buildings Product: A green buildings materials company, designing concrete, flooring, and wall...

  9. Types of Insulation | Department of Energy

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

    which saves money. Structural Insulated Panels Structural insulated panels (SIPs) are prefabricated insulated structural elements for use in building walls, ceilings, floors,...

  10. Verenium Corporation (Massachusetts) | Open Energy Information

    Open Energy Info (EERE)

    (Massachusetts) Jump to: navigation, search Name: Verenium Corporation Address: 55 Cambridge Parkway, 8th Floor Place: Cambridge, Massachusetts Zip: 02142 Region: Greater Boston...

  11. Nautricity | Open Energy Information

    Open Energy Info (EERE)

    search Name: Nautricity Address: Capella Building floor 10 60 York Street Place: Glasgow Zip: G2 8JX Region: Scotland Sector: Marine and Hydrokinetic Phone Number: 0141 275...

  12. Innovative Home Tours Help Homeowners Understand Energy Savings...

    Energy Savers [EERE]

    floors The California Community Savings Initiative is providing an innovative way to learn about energy efficiency upgrades. The initiative-run by the California Center for ...

  13. Towards High-Flux Isolated Attosecond Pulses with a 200 TW CPA...

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

    December 16, 2015 - 10:00am Kavli Third Floor Conference Room Speaker: Eric Cunningham, University of Central Florida Program Description Attosecond pulses have been...

  14. Prospect Capital Corporation | Open Energy Information

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    Prospect Capital Corporation Jump to: navigation, search Logo: Prospect Capital Corporation Name: Prospect Capital Corporation Address: 10 East 40th Street, 44th Floor Place: New...

  15. RockPort Capital Partners (Massachusetts) | Open Energy Information

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    RockPort Capital Partners (Massachusetts) Name: RockPort Capital Partners (Massachusetts) Address: 160 Federal Street, 18th Floor Place: Boston, Massachusetts Zip: 02110 Region:...

  16. BEV Capital | Open Energy Information

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    BEV Capital Jump to: navigation, search Logo: BEV Capital Name: BEV Capital Address: 263 Tresser Blvd., 9th Floor Place: Stamford, Connecticut Zip: 06901 Region: Northeast - NY NJ...

  17. New Energy Capital | Open Energy Information

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    Capital Jump to: navigation, search Logo: New Energy Capital Name: New Energy Capital Address: 53 South Main Street, Third Floor Place: Hanover, New Hampshire Zip: 03755 Product:...

  18. Black Coral Capital | Open Energy Information

    Open Energy Info (EERE)

    Coral Capital Jump to: navigation, search Name: Black Coral Capital Address: 55 Union Street, 3rd Floor Place: Boston, Massachusetts Zip: 02108 Region: Greater Boston Area Product:...

  19. Earthrise Capital | Open Energy Information

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    Earthrise Capital Jump to: navigation, search Logo: Earthrise Capital Name: Earthrise Capital Address: 45 Rockefeller Plaza, 20th Floor Place: New York, New York Zip: 10111 Region:...

  20. Commons Capital | Open Energy Information

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    Commons Capital Jump to: navigation, search Logo: Commons Capital Name: Commons Capital Address: 320 Washington Street, 4th floor Place: Brookline, Massachusetts Zip: 02445 Region:...

  1. Cora Capital Advisors | Open Energy Information

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    Cora Capital Advisors Jump to: navigation, search Logo: Cora Capital Advisors Name: Cora Capital Advisors Address: 445 Park Avenue, 9th Floor Place: New York Zip: 10022 Region:...

  2. Press Pass - Press Releases

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

    visit the Lederman Science Center, the ground floor and atrium of Wilson Hall, and the Ramsey Auditorium, where signs will mark the boundaries. Visitors attending the Arts, Lecture...

  3. Microsoft PowerPoint - Department of Energy ( Portland ) [Compatibilit...

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

    ... (2 per floor) Urea Injection for NOX Control ESP for Particulate emission control Steam turbine Plate & Frame Heat Exchanger to Heat glycol to 260 F 24 MWH substation ...

  4. QUARTERLY NUCLEAR POWER DEPLOYMENT SUMMARY APRIL 2016

    Energy Savers [EERE]

    ... and Crystal River were both due to problems related to steam generator replacements. ... Final concrete has been placed for turbine floor. Unit 4: First of three containment ...

  5. Quarterly Nuclear Deployment Scorecard - October 2014 | Department...

    Office of Environmental Management (EM)

    ... the floor of the steam generator compartment and chemical and volume control system room. ... boiler, heat exchangers, feed water heaters) have been set inside the turbine building. ...

  6. Quarterly Nuclear Deployment Scorecard - April 2016 | Department...

    Energy Savers [EERE]

    ... and Crystal River were both due to problems related to steam generator replacements. ... Final concrete has been placed for turbine floor. Unit 4: First of three containment ...

  7. EIA-800

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

    Email: Floor, Suite): Fax: (202) 586-1076 City: State: Zip: - Secure File Transfer: Electronic Transmission: City: State: Zip: - Contact Name: Phone No.: Ext: Fax No.: Questions? ...

  8. Hawaii State Energy Office | Open Energy Information

    Open Energy Info (EERE)

    Hawaii State Energy Office Jump to: navigation, search Name: Dept. of Business, Economic Development & Tourism Address: 235 S. Beretania, 5th Floor Place: Honolulu, Hawaii Zip:...

  9. First Energy Ohio - Residential Efficiency Rebates | Department...

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

    25unit Ceiling Fan CFL Light Combination: 30 Torchiere Floor Lamps: 10 Heat Pump Water Heaters: 250 Electric Water Heaters: 100 HVAC Tune Up: 25 Central AC: 150...

  10. Massachusetts Green Energy Fund | Open Energy Information

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    Fund Jump to: navigation, search Logo: Massachusetts Green Energy Fund Name: Massachusetts Green Energy Fund Address: 320 Washington Street, 4th Floor Place: Brookline,...

  11. DOE-Idaho Operations Summary For May 12 to May 25, 2009

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

    The report is broken down by contractor: Advanced Mixed Waste Treatment Project (AMWTP), Idaho ... a concrete floor as part of construction activities at an AMWTP facility. ...

  12. Lighting and Electrical Team Leadership and Project Delivery

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

    ... Walmart Demonstrates LEDs on the Sales Floor Case Study LED Refrigerated Display ... 1500+ attendees Presentations, 9 events Media Tweets and Re-tweets, 38 releases Press, ...

  13. Slab Insulation

    SciTech Connect (OSTI)

    2000-12-01

    Fact sheet for homeowners and contractors on how to insulate slab-on-grade floors and control moisture, air leakage, termites, and radon.

  14. Solar Decathlon Technology Spotlight: Structural Insulated Panels...

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

    Structural insulated panels (SIPs) are prefabricated structural elements used to build walls, ceilings, floors, and roofs. Made of foam insulation sandwiched between two layers of ...

  15. The Center for Architecture, Science, and Ecology (CASE) | Open...

    Open Energy Info (EERE)

    Architecture, Science, and Ecology (CASE) Jump to: navigation, search Name: The Center for Architecture, Science, and Ecology Address: 14 Wall Street 24th Floor New York, NY 10005...

  16. Microsoft PowerPoint - Tritium Design Practice.ppt

    Office of Environmental Management (EM)

    Publishers, 1993 International Atomic Energy Agency, ... Floor plan available space Experiences lessens learnt 10 ... EXAMPLE 1 - TRITIUM INSTRUMENT TEST STATION 15 USE OF GAS ...

  17. National Security Science - April 2013

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    floor Turning Big Data into fast data Solving the roadblock for tomorrow's exascale supercomputing Killing killer asteroids Could nuclear explosives avert a global disaster? ...

  18. Katrina Errant | Argonne Leadership Computing Facility

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    Katrina Errant Floor Manager Argonne National Laboratory 9700 S. Cass Avenue Building 240 - Wkstn. 3D18 Argonne, IL 60439 630-252-0024 kerrant

  19. ORNL-5680 Radiological Surveys

    Office of Legacy Management (LM)

    ... A search for the source of elevated gamma radiation readings ... for remedial action in terms of external gamma radiation ... seep from the ground and enter buildings through floors, ...

  20. ALSNews Vol. 317

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    second floor conference room. Bring your lunch and enjoy caf-style snacks while listening to these speakers present their research: Hendrik Ohldag - "Doesn't a magnetic...