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Study on reduction of accessory-horsepower requirements. Third quarterly progress report

Description: The objective of this study program is to minimize automotive accessory horsepower consumption, and thereby maximize overall vehicle fuel economy, by utilizing continuously variable speed drives or auxiliary power units (APUs) in a standard passenger automobile. As an aid to definitizing accessory performance, load requirements and fuel economy, a baseline vehicle has beeen established. This vehicle is a conventional intermediate size 5- or 6-passenger automobile with a 4.1 to 5.7 liter (250 to… more
Date: April 23, 1975
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Measured Infiltration and Ventilation in Manufactured Homes : Residential Construction Demonstration Project, Cycle II.

Description: Air infiltration is an important factor in heat loss and indoor air quality; in modern well-insulated homes, it may account for as much as half of the total heat loss. Due to the recent emphasis by home buyers and manufacturers on energy efficiency, tighter homes are being constructed. In the past, it was assumed that natural infiltration would provide adequate ventilation to maintain acceptable indoor air quality, but this is no longer the case in modern energy-efficient homes. This report sum… more
Date: April 28, 1992
Creator: Palmiter, Larry S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Performance study of a thermal-envelope house: Phase II. Cooling performance. Final report

Description: The thermal envelope house is shown to perform much better than conventional houses without mechanical refrigeration and better than one would expect from most passively cooled houses in the hot-humid climate of Georgia. Peak temperatures inside the house were 8 to 15/sup 0/F below peak ambient temperatures. Peak inside temperature measured during the test period was 80/sup 0/F with an outside ambient peak of 93/sup 0/F. Air flow rates within the envelope were less than 1 ft/sec even when the a… more
Date: January 1, 1981
Creator: Akridge, J. M. & Benton, C. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Uranium enrichment export control guide: Gaseous diffusion

Description: This document was prepared to serve as a guide for export control officials in their interpretation, understanding, and implementation of export laws that relate to the Zangger International Trigger List for gaseous diffusion uranium enrichment process components, equipment, and materials. Particular emphasis is focused on items that are especially designed or prepared since export controls are required for these by States that are party to the International Nuclear Nonproliferation Treaty.
Date: September 1, 1989
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Impact evaluation of an Energy $avings Plan project at Columbia Harbor Lumber Company

Description: This impact evaluation of an energy conservation measure (ECM) that was recently installed at Columbia Harbor Lumber Company (Columbia Harbor Lumber), Chehalis, Washington, was conducted for the Bonneville Power Administration (Bonneville) as part of an evaluation of its Energy Savings Plan (ESP) Program. The Program makes acquisition payments to firms that install energy conservation measures in their industrial processes. The objective of this impact evaluation was to assess how much electric… more
Date: February 1992
Creator: Spanner, G. E. & Sullivan, G. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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HTGR applications program advanced systems. Semiannual report, October 1, 1982-March 31, 1983

Description: Work Breakdown Structure (WBS 41) activities emphasize the advanced HTGR modular reactor system (MRS) for reformer (R) and steam cycle/-cogeneration (SC/C) applications. This report describes progress in system performance for a 250-MW(t) MRS-R and a 300-MW(t) MRS-SC/C plant; it details the groundrules and parameters for the FY-83 nuclear core design and examines and compares fuel cycle economics. This report gives results from a study on decay heat removal transients for the MRS-R and MRS-SC/C… more
Date: May 1, 1983
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Passive-design concepts applied to multifamily construction, Chesapeake, Virginia. Final report

Description: The design and technical assistance process for multifamily development in the Norfolk/Virginia Beach, Virginia areas is documented. The energy-related alternatives considered and the process of evaluating them, site planning, building design, and thermal performance analyses are included. The project was conducted in cooperation with the local building community to achieve effective technology transfer. (MHR)
Date: January 1, 1981
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fluidized-bed potato waste drying experiments at the Raft River Geothermal Test Site

Description: A fluidized-bed dryer was built and operated at the Raft River Geothermal Test Site in south central Idaho to test the feasibility of using low-temperature (145/sup 0/C or lower) geothermal fluids as an energy source for drying operations. The dryer performed successfully on two potato industry waste products that had a solid content of 5 to 13%. The dried product was removed as a sand-like granular material or as fines with a flour-like texture. Test results, observations, and design recommend… more
Date: June 1, 1980
Creator: Cole, L. T. & Schmitt, R. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of a solar desiccant dehumidifier. Phase II. Technical progress report

Description: The effort reported is a continuation of the development testing of the 1.5-ton solar desiccant air conditioner (SODAC) and is concerned with determination of the SODAC performance in the recirculated and ventilated mode configuration. Test data in the recirculated mode are presented. As originally conceived, the SODAC features two-speed indoor and outdoor fans to permit more efficient operation at reduced capacity. In both full-flow and half-flow cases, the experimental data are compared to co… more
Date: March 27, 1981
Creator: Rousseau, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Utilization of geothermal energy-feasibility study, Ojo Caliente Mineral Springs Company, Ojo Caliente, New Mexico

Description: This report investigates the feasibility of a geothermal heating system at the Ojo Caliente Mineral Springs Co. The geothermal energy will be used to preheat hot water for the laundry facilities and to heat the water for a two-pipe fan coil heating system in the hotel. Present annual heating fuel costs of $11,218 for propane will be replaced by electricity to operate fans and pump at an annual cost of $2547, resulting in a net savings of $8671. Installation costs include $10,100 for a well syst… more
Date: April 1, 1982
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Designing passive solar buildings to reduce temperature swings

Description: Control of temperature swings is a major consideration in design of passive solar heated buildings - especially so as the designer seeks to achieve most of the building heat from the sun. Observations of temperature swings in several passive buildings are cited. Methods of temperature control are discussed, both by means of control intervention such as using of auxiliary backup heating, ventilation, and blowers, and by means of building design. The design approach is preferred as the main cours… more
Date: May 1, 1978
Creator: Balcomb, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Waste-heat exchange system. Final technical report

Description: The construction of a simple wind suction tunnel is described using one 4' x 8' sheet of interior plywood (1/4'') paneling board painted white and installation of one small 110 volt barrel type fan to pull warm air from the ceiling of a classroom and forcing air across the otherwise cool floor area. Warmer air that collects near the ceiling (waste heat) can, therefore, be reused (exchanged) thus requiring less use of energy consumption by existing heating system.
Date: unknown
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cfd Modeling Analysis of Mechanical Draft Cooling Tower

Description: Industrial processes use mechanical draft cooling towers (MDCT's) to dissipate waste heat by transferring heat from water to air via evaporative cooling, which causes air humidification. The Savannah River Site (SRS) has a MDCT consisting of four independent compartments called cells. Each cell has its own fan to help maximize heat transfer between ambient air and circulated water. The primary objective of the work is to conduct a parametric study for cooling tower performance under different f… more
Date: March 3, 2008
Creator: Lee, S.; Alfred Garrett, A.; James02 Bollinger, J. & Larry Koffman, L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Labs21 Laboratory Modeling Guidelines using ASHRAE 90.1-1999

Description: The following is a guideline for energy modeling of laboratory spaces in a building in accordance with the Energy Cost Budget method described in ASHRAE 90.1-1999 Energy Standard for Buildings Except Low-Rise Residential Buildings. For the purposes of this document, a laboratory is defined as any space requiring once through ventilation systems (recirculation of air to other spaces in a building is not allowed). To accomplish this, ventilation systems in laboratories typically provide 100% outs… more
Date: October 1, 2005
Creator: Reilly, Susan; Walsh, Michael; Graham, Carl; Maor, Itzhak; Mathew, Paul; Porter, Fred et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Furnace Blower Electricity: National and Regional Savings Potential

Description: Currently, total electricity consumption of furnaces is unregulated, tested at laboratory conditions using the DOE test procedure, and is reported in the GAMA directory as varying from 76 kWh/year to 1,953 kWh/year. Furnace blowers account for about 80percent of the total furnace electricity consumption and are primarily used to distribute warm air throughout the home during furnace operation as well as distribute cold air during air conditioning operation. Yet the furnace test procedure does n… more
Date: May 16, 2008
Creator: Center, Florida Solar Energy; Franco, Victor; Franco, Victor; Lutz, Jim; Lekov, Alex & Gu, Lixing
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Cold Air Distribution in Office Buildings: Technology Assessment for California

Description: This paper presents the results of a study to assess the current state of practice, and energy and operating cost implications of cold air distribution in California, and to identify the key research needs for the continued development of this technology in new commercial buildings in the state. Whole-building energy simulations were made to compare the energy performance of a prototypical office building in three California climates using conventional and cold air distribution, with and withou… more
Date: June 1, 1992
Creator: Bauman, F. S.; Borgers, T.; LaBerge, P. & Gadgil, A. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Best Practice for Energy Efficient Cleanrooms: Fan-Filter Units

Description: The HVAC systems in cleanrooms may use 50 percent or more of the total cleanroom energy use. Fan energy use accounts for a significant portion (e.g., over 50%) of the HVAC energy use in cleanrooms such as ISO Classes 3, 4, or 5. Three types of air-handling systems for recirculating airflows are commonly used in cleanrooms: (1) fan-tower systems with pressurized plenum, (2) ducted HEPA systems with distributed-fans, and (3) systems with fan-filter units. Because energy efficiency of the recircul… more
Date: June 15, 2005
Creator: Xu, Tengfang
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Regional and National Estimates of the PotentialEnergy Use, Energy Cost, and CO{sub 2} Emissions Associated with Radon Mitigation by Sub-slab Depressurization

Description: Active sub-slab depressurization (SSD) systems are an effective means of reducing indoor radon concentrations in residential buildings. However, energy is required to operate the system fan and to heat or cool the resulting increased building ventilation. We present regional and national estimates of the energy requirements, operating expenses, and CO{sub 2} emissions associated with using SSD systems at saturation (i.e., in all U.S. homes with radon concentrations above the EPA remediation gui… more
Date: March 1, 1996
Creator: Riley, W. J.; Fisk, W. J. & Gadgil, A. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Benchmarking and Equipment and Controls Assessment for a 'Big Box' Retail Chain

Description: The paper describes work to enable improved energy performance of existing and new retail stores belonging to a national chain and thereby also identify measures and tools that would improve the performance of 'big box' stores generally. A detailed energy simulation model of a standard store design was developed and used to: (1) demonstrate the benefits of benchmarking the energy performance of retail stores of relatively standard design using baselines derived from simulation, (2) identify cos… more
Date: June 11, 2008
Creator: Haves, Philip; Coffey, Brian & Williams, Scott
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Texas Field Experiment Results: Performance of the Weatherization Assistance Program in Hot-Climate, Low-Income Homes

Description: A field test involving 35 houses was performed in Texas between 2000 and 2003 to study the response of low-income homes in hot climates to weatherization performed as part of the U.S Department of Energy Weatherization Assistance Program and to investigate certain methods to improve weatherization performance. The study found that improved Program designs and the use of advanced energy audits resulted in better weatherization measures being installed (use of blower doors to guide the infiltrati… more
Date: April 1, 2008
Creator: McCold, Lance Neil; Goeltz, Rick; Ternes, Mark P & Berry, Linda G
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of the Repeatability of the Delta Q Duct Leakage Testing TechniqueIncluding Investigation of Robust Analysis Techniques and Estimates of Weather Induced Uncertainty

Description: The DeltaQ test is a method of estimating the air leakage from forced air duct systems. Developed primarily for residential and small commercial applications it uses the changes in blower door test results due to forced air system operation. Previous studies established the principles behind DeltaQ testing, but raised issues of precision of the test, particularly for leaky homes on windy days. Details of the measurement technique are available in an ASTM Standard (ASTM E1554-2007). In order to … more
Date: August 1, 2008
Creator: Dickerhoff, Darryl & Walker, Iain
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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