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Manufactured Homes Acquisition Program : Heat Loss Assumptions and Calculations, Heat Loss Coefficient Tables.

Description: This manual is intended to assist builders of manufactured homes in assessing the thermal performance of structural components used in the Manufactured Housing Acquisition Program (MAP) sponsored by the Bonneville Power Administration (BPA). U-factors for these components are calculated using the ASHRAE (1989) parallel heat loss method, with adaptations made for the construction practices found in the Pacific Northwest manufactured home industry. This report is divided into two parts. The first… more
Date: May 1, 1992
Creator: Davis, Bob & Baylon, David
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermal testing of the proposed HUD energy efficiency standard for new manufactured homes

Description: Thermal testing of two manufactured homes was performed at the National Renewable Energy Laboratory's (NREL's) Collaborative Manufactured Buildings Facility for Energy Research and Testing (CMFERT) environmental enclosure in the winter and spring of 1991. The primary objective of the study was to directly measure the thermal performance of the two homes, each built according to a proposed new US Department of Housing and Urban Development (HUD) standard. Secondary objectives were to test the ac… more
Date: June 1, 1992
Creator: Judkoff, R.D. & Barker, G.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Heating/daylighting prototype development. Phase I, Passive and Hybrid Solar Manufactured Building Project. Interim report and project status report No. 1, 1 October 1979-29 February 1980

Description: Climatological data, both representative (typical) and extreme conditions, relevant to building energy use in Grandview, Missouri are presented. The energy-related characteristics of a particular building and its use are merged with ambient weather conditions. The graphs depict daily fluctuations in the major categories of building heating/cooling load for the experimental building (Roof Runner facility) at Butler Research Center. Data input include hourly weather and building occupancy schedul… more
Date: March 31, 1980
Creator: Snyder, M.; Fraker, H.; Lindsey, L.; Braham, W.; Hallagan, W. & Huffman, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Home retrofitting for energy conservation and solar considerations

Description: This manual explains both the key concepts behind our need for and our impact on energy usage, as well as a nuts-and-bolts explanation of how to improve the energy efficiency of your home. By reviewing both the concepts and practices of energy conservation, the manual presents a comprehensive picture of how home energy use is effected by the inhabitants and by the structure itself. The manual begins with an explanation of why we are looking at energy, then proceeds to explain how the heat trans… more
Date: October 1, 1981
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High-R Window Technology Development : Phase II Final Report.

Description: Of all building envelope elements, windows always have had the highest heat loss rates. However, recent advances in window technologies such as low-emissivity (low-E) coatings and low- conductivity gas fillings have begun to change the status of windows in the building energy equation, raising the average R-value (resistance to heat flow) from 2 to 4 h-ft{sup 2}-{degrees}F/Btu. Building on this trend and using a novel combination of low-E coatings, gas-fills, and three glazing layers, the autho… more
Date: January 1, 1991
Creator: Arasteh, Dariush
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mapping the energy saving potential of passive heating combined with conservation

Description: A procedure is presented for estimating the energy savings potential of combining conservation and passive solar strategies to reduce building heating. General scaling laws are used for costs and the resulting continuous equations are evaluated to find the least life-cycle cost strategy. Results are mapped for the US.
Date: January 1, 1985
Creator: Balcomb, J. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Using Perturbed QR Factorizations To Solve Linear Least-Squares Problems

Description: We propose and analyze a new tool to help solve sparse linear least-squares problems min{sub x} {parallel}Ax-b{parallel}{sub 2}. Our method is based on a sparse QR factorization of a low-rank perturbation {cflx A} of A. More precisely, we show that the R factor of {cflx A} is an effective preconditioner for the least-squares problem min{sub x} {parallel}Ax-b{parallel}{sub 2}, when solved using LSQR. We propose applications for the new technique. When A is rank deficient we can add rows to ensur… more
Date: March 21, 2008
Creator: Avron, Haim; Ng, Esmond G. & Toledo, Sivan
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Non-CFC vacuum alternatives for the energy-efficient insulation of household refrigerators: Design and use

Description: Energy efficiency, environmental issues, and market incentives all encourage government and industry to continue work on thin-profile vacuum insulations for domestic refrigerators and freezers (R/Fs). Vacuum insulations promise significant improvement in thermal savings over current insulations; the technical objective of one design is an R-value of better than 10 (hr-ft{sup 2}-F/Btu) in 0.1 in. thickness. If performance is improved by a factor of 10 over that of CFC-blown insulating foams, the… more
Date: January 1, 1991
Creator: Potter, T. F. & Benson, D. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Conservation and solar guidelines

Description: Guidelines are given for selecting R-values and infiltration levels, and determining the size of the solar collection area for passive solar buildings. The guidelines are based on balancing the incremental cost/benefit of conservation and passive solar strategies. Tables are given for 90 cities in the US and the results are also displayed on maps. An example is included.
Date: January 1, 1983
Creator: Balcomb, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The effect of compression on the material R-value of fiberglass batt insulation

Description: Fiberglass batt insulations intended for use in buildings are labeled with an R-value and thickness at which the R-value is achieved. In some cases the insulation is installed in such a way that the label thickness is not achieved. The material R-value of fiberglass batts installed at less than full thickness will be less than the full-thickness R-value. Results are presented for values measured in accordance with ASTM C 518 for commercially available fiberglass batts at full thickness and comp… more
Date: January 1, 1990
Creator: Graves, R.S. & Yarbrough, D.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Guidelines for conservation levels and for sizing passive-solar collection area

Description: Guidelines are given for selecting R-values and infiltration levels, and determining the size of the solar collection area for passive solar building. The guidelines are based on balancing the incremental cost/benefit of conservation and solar strategies. Tables are given for 209 cities in the US and the results are also displayed on maps. The procedures are developed in an appendix, which gives the cost assumptions used and explains how to develop different guidelines for different costs.
Date: January 1, 1983
Creator: Balcomb, J. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Effect of design parameter changes on the performance of thermal storage wall passive systems

Description: Hour-by-hour computer simulations based on one year of solar radiation and temperature data are used to analyze annual energy savings in thermal storage wall passive designs, both Trombe wall and water wall cases. The calculations are rerun many times changing various parameters one at a time to assess the effect on performance. Parameters analyzed are: night insulation R-value, number of glazings, wall absorptance and emittance, thermal storage capacity, Trombe wall properties and vent area si… more
Date: January 1, 1979
Creator: McFarland, R.D. & Balcomb, J.D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

KLEGECELL: a new lightweight insulating material with superior properties

Description: Klegecell -- the brand name of a rigid polyvinyl chloride foam used extensively in the marine and aviation industries -- has substantial advantages over other rigid insulation for certain passive solar applications, particularly as movable insulation. It comes in lightweight rigid panels with high insulating values (R = 7 per inch) so that thin panels are adequate. Its low water vapor permeability makes it suitable for use on the inside of glazing in cold climates, since it prevents condensatio… more
Date: January 1, 1980
Creator: Hodges, L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Super-insulating gas-filled panels

Description: This paper presents the design, materials characteristics, and thermal performance of a new insulating material. Development of this material is motivated by the need for non-CFC based high performance insulations with applications for refrigerator/freezer and building walls. This super insulating gas filled panel technology achieves R-values of between 8 hr-ft{sup 2}-F/Btu per inch and 15 hr-ft{sup 2}-F/Btu per inch (one to two times that of CFC blown foams and two to four times that of fiberg… more
Date: August 1, 1990
Creator: Arasteh, D.; Griffith, B. & Selkowitz, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cost data collection for manufactured homes in RCDP (Residential Construction Demonstration Project)

Description: In the Pacific Northwest, a major effort has been made to improve the energy efficiency of new buildings. In the residential building sector, energy-efficient standards for new construction, called Model Conservation Standards (MCS), have been proposed; and demonstration projects are under way to implement MCS features and to explore new conservation possibilities. Bonneville Power Administration (Bonneville) administers a Pacific Northwest program to promote the construction and marketing of e… more
Date: January 1, 1990
Creator: Weakley, S. A.; Eckert, R. L. & Lee, A. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Structural foam-core panels in Northwest HUD-code manufactured housing: A preliminary assessment of opportunities and obstacles

Description: This investigation of structural foam-core panels (foam panels) in manufactured housing was initiated during the Super Good Cents (SGC) program. The SGC program limited allowable glazing area because of the relatively high thermal losses associated with most windows. Due to their superior thermal performance, foam panels appeared to be a viable option to allow increased glazing area without compromising the thermal integrity of the wall. With the inception of the Manufactured-Housing Acquisitio… more
Date: July 1, 1993
Creator: Durfee, D. L.; Lee, A. D. & Onisko, S. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Divalent Lanthanide Chemistry; Bis(pentamethylcyclopentadienyl)europium(II) and Ytterbium(II) Derivatives: Crystal Structure of Bis(pentamethylcyclopentadienyl) Ytterbium (II)Tetrahydrofuran Hemi (Toluene) at 176K

Description: Red, paramagnetic ({mu}{sub B} = 7.99 B.M., 5-50K) bis(pentamethylcyclopentadienyl) europium (II)(tetrahydrofuran)(diethylether), (Me{sub 5}C{sub 5}){sub 2}Eu(THF)(Et{sub 2}O) is isolated from reaction of three molar equivalents of sodium pentamethylcyclopentadienide and europium trichloride in refluxing tetrahydrofuran, after crystallization from diethyl ether. The monotetrahydrofuran complex, (Me{sub 5}C{sub 5}){sub 2}Eu(THF), may be isolated by use of toluene rather than diethyl ether as the… more
Date: April 1, 1980
Creator: Tilley, T. Don; Andersen, Richard A.; Spencer, Brock; Ruben, Helena; Zalkin, Allan & Templeton, David H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Synthesis and Crystal Structure of a Neodymium Isopropoxide Chloride, Nd6[OCH(CH3)2]17Cl1

Description: Neodymium (III) chloride reacts with sodium isopropoxide in isopropyl alcohol to produce a complex which has been characterized by an x-ray crystal structure determination to be hexa-isopropoxy-nona({mu}{sub 2}-isopropoxy)-di-({mu}{sub 3}-isopropoxY)-({mu}{sub 6}-chloro-hexa-neodymium), Nd{sub 6}[OCH(CH{sub 3}){sub 2}]{sub 17}Cl. The pale blue crystals are monoclinic, space group P2{sub 1}/n with cell dimensions a = 24.52(2) {angstrom}, b = 22.60(2) {angstrom}, c = 14.22(1) {angstrom}, and {bet… more
Date: December 1, 1977
Creator: Andersen, R. A.; Templeton, D. H. & Zalkin, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

High-R window technology development. Phase 2, Final report

Description: Of all building envelope elements, windows always have had the highest heat loss rates. However, recent advances in window technologies such as low-emissivity (low-E) coatings and low- conductivity gas fillings have begun to change the status of windows in the building energy equation, raising the average R-value (resistance to heat flow) from 2 to 4 h-ft{sup 2}-{degrees}F/Btu. Building on this trend and using a novel combination of low-E coatings, gas-fills, and three glazing layers, the autho… more
Date: January 1, 1991
Creator: Arasteh, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermal resistance of attic loose-fill insulations decreases under simulated winter conditions

Description: Two absolute techniques were used to measure the thermal resistance of attic loose-fill insulations: the Large Scale Climate Simulator (LSCS) and the Unguarded Thin-Heater Apparatus (UTHA). Two types of attic loose-fill insulations (unbonded and bonded/cubed) were tested under simulated winter conditions. To simulate winter conditions for an attic insulation, the specimens were tested with heat flow up, large temperature differences, and an air gap. The specimens were tested either with a const… more
Date: May 1, 1994
Creator: Graves, R. S.; Wilkes, K. E. & McElroy, D. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermal testing of the proposed HUD energy efficiency standard for new manufactured homes

Description: Thermal testing of two manufactured homes was performed at the National Renewable Energy Laboratory`s (NREL`s) Collaborative Manufactured Buildings Facility for Energy Research and Testing (CMFERT) environmental enclosure in the winter and spring of 1991. The primary objective of the study was to directly measure the thermal performance of the two homes, each built according to a proposed new US Department of Housing and Urban Development (HUD) standard. Secondary objectives were to test the ac… more
Date: June 1, 1992
Creator: Judkoff, R. D. & Barker, G. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

End-use load and consumer assessment program: Heat loss characteristics of the residential sample

Description: The End-Use Load and Consumer Assessment Program (ELCAP) conducted for the Bonneville Power Administration by Pacific Northwest Laboratory was initiated to support both conservation assessment and load forecasting missions. This report documents a study of the heat loss characteristics of the ELCAP residential buildings. The basic objectives of this analysis are to: calculate theoretical residential heat loss rate based on the onsite inspection data for use in support of subsequent analyses, de… more
Date: June 1, 1990
Creator: Connor, C. C.; Lortz, V. B. & Pratt, R. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Vacuum window glazings for energy-efficient buildings

Description: The technical feasibility of a patented, laser-welded, evacuated insulating window was studied. The window has two edge-sealed sheets of glass separated by 0.5-mm glass spheres spaced 30 mm apart in a regular array. A highly insulating frame is required and several designs were analyzed. The vacuum window's combination of high solar transmittance and low thermal conductance makes it superior to many other windows in cold climates. In the US Pacific Northwest, the vacuum window could save a… more
Date: May 1, 1990
Creator: Benson, D. K.; Smith, L. K.; Tracy, C. E.; Potter, T.; Christensen, C. (Solar Energy Research Inst., Golden, CO (USA)) & Soule, D. E. (Western Illinois Univ., Macomb, IL (USA))
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Energy conservation in swine buildings

Description: Saving energy in confinement swine buildings can be achieved by conserving existing animal heat through both proper building construction and control of the environment. Environmental management practices considered include building insulation and modifications, heating and cooling system selection, ventilation system adjustments, and proper building temperature. (MCW)
Date: May 1, 1980
Creator: Jones, D. D. & Friday, W. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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