1,458 Matching Results

Search Results

Advanced search parameters have been applied.

Space Heating Rates for Some Premixed Turbulent Propane-Air Flames

Description: Note presenting measurements of space heating rate, which can yield information that is useful in characterizing turbulent combustion. For Bunsen burner flames stabilized over a field of pipe-induced turbulence, the space heating rate decreased with increasing linear flow and burner diameter and was independent of pilot conditions. Results regarding residual heat values, space conversion rate, turbulent burning velocities, and a comparison of concepts are provided.
Date: June 1956
Creator: Fine, Burton D. & Wagner, Paul
Partner: UNT Libraries Government Documents Department

Energy conservation and solar heating for mobile homes

Description: Project activities consisted of retro-fitting six (6) mobile homes with extensive energy-conservation improvements and installing solar-space-heating systems on four (4) of these homes. The intent of the project was to evaluate the potential of mobile homes as a low-cost energy-efficient housing option for low- to moderate income families. Using both hard and soft data, it is estimated that an average fuel reduction in excess of 35% was achieved by the conservation improvements alone. The project lacked the expertise and monitoring instruments to properly evaluate the effectiveness of the four solar installations and had to rely on the personal observations of the four families that received the units.
Date: unknown
Partner: UNT Libraries Government Documents Department

Department of Energy's solar update. Four regional conferences highlighting the objectives, plans, and experience of the National Commercial Solar Heating and Cooling Demonstration Program and the National Solar Data Program

Description: These proceedings represent the overview and project papers made available to all the participants at each of the regional conferences. Papers not available at time of publication, and additional materials, including a summary and analysis of the Workshop/Panel Sessions are included in the complete proceedings CONF-780701--(Rev.) for which individual abstracts were prepared for each paper. (MHR)
Date: July 1, 1978
Partner: UNT Libraries Government Documents Department

Solar energy system installed at Mount Rushmore National Visitor Center in Keystone, South Dakota

Description: Information is provided on the system description, the design, and installation of the solar energy system installed at the Mount Rushmore Visitor Center. The system is designed to furnish about 45 percent of the heating for the total facility and about 53 percent partial cooling for the 2000 square-foot observatory. Such items as Acceptance Test Data, a complete set of as-build drawings, system performance data, problems, pictures, and other pertinent materials are included.
Date: June 1, 1979
Partner: UNT Libraries Government Documents Department

Solar heating experiment on the Grover Cleveland School, Boston, Massachusetts. Annual report

Description: This report presents quantitative and qualitative data obtained during the first full year's operation of an industrial type, solar heating system of pilot plant scale. A brief description of the system is given and operational data for the system is provided along with information on maintenance history, various relevant experiences, individual investigations and experiments, and problem areas which were experienced. (WDM)
Date: July 15, 1975
Partner: UNT Libraries Government Documents Department

Study on the use of adaptive control for energy conservation in large solar heated and cooled buildings

Description: The National Security and Resources Study Center at LASL provides the basis for a general model used in this simulation. The NSRSC is a 59,000 ft/sup 2/ library and conference facility. A simplified model of the solar heating system is used. The adaptive optimal control technique is described and applied and the results are discussed. (MHR)
Date: January 1, 1980
Creator: Farris, D. R. & Melsa, J. L.
Partner: UNT Libraries Government Documents Department

United States special format report: Northview Junior High solar energy school heating augmentation experiment

Description: The program described in this report demonstrates the ability of solar collectors to supplement the heating and hot water requirements of North View Junior High School in suburban Minneapolis. The program is obtaining engineering data which may be used to improve collector performance and system performance or design. In addition, data are being compiled which may be used to define investment requirements for similar installations. The program is also helping to determine community acceptance of solar heated school buildings. Construction was initiated during January 1974 and completed during May 1974. The basic rationale for the program is the necessity of obtaining firm answers in three areas: (1) validation of system performance, (2) determination of overall system costs, and (3) acquisition of data to determine the benefits of such a system. (WDM)
Date: June 1, 1976
Creator: Merrill, G. & Dib, A.
Partner: UNT Libraries Government Documents Department

Proceedings of the Solar Industrial Process Heat Symposium

Description: The purpose of the symposium was to review the progress of various solar energy systems currently under design for supplying industrial process heat. Formal presentations consisted of a review of solar energy applications in industrial process heat as well as several on-going project reviews. An Open Forum was held to solicit the comments of the participants. The recommendations of this Open Forum are included in these proceedings. Eighteen papers were included. Separate abstracts were prepared for each paper.
Date: June 1978
Partner: UNT Libraries Government Documents Department

Solar house heating system using reflective pyramid optical condensing system. Progress report 101-4, June 1, 1975--June 1, 1976

Description: An experimental program to evaluate solar energy heating and cooling systems employing a pyramidal optics concentrating system is described. Work on this contract has proceeded with improvements to the initial test installation and instrumentation and evaluation of a newly constructed residence employing an improved version of the concept. The developmental progress made and the test results obtained thus far are summarized.
Date: July 1, 1976
Partner: UNT Libraries Government Documents Department

Solar energy system case study: Telex Communications, Blue Earth, Minnesota

Description: A study is made of a solar energy system for space heating a 97,000-square-foot office, factory, and warehouse building owned by Telex Communications, Inc. in Blue Earth, Minnesota. The solar system has 11,520 square feet of ground-oriented flat-plate collectors and a 20,000-gallon storage tank inside the building. Freeze protection is by drainback. Solar heated water from the storage tank circulates around the clock throughout the heating season to heating coils in the ducts. The system achieves its design solar fraction, is efficient, and generally reliable, but not cost-effective. Performance data for the solar system was collected by the National Solar Data Network for three heating seasons from 1978 to 1981. Because of a freeze-up of the collector array in December 1978, the solar system was only partially operational in the 1978 to 1979 heating season. The data in this report were collected in the 1979 to 1980 and 1980 to 1981 heating seasons.
Date: September 1, 1984
Creator: Raymond, M.G.
Partner: UNT Libraries Government Documents Department

Appropriate sizing of solar heating systems

Description: It is generally assumed that a solar heating system should be sized by minimizing its life cycle cost. This study shows, however, that the uncertainty in future economic trends makes the results of such a procedure questionable. The design conditions for minimum cost are extremely broad and all practical systems have a solar fraction within the limited range of 30% to 90%. Thus, by choosing only three collector areas that give systems within this range, one is assured of selecting a nearly optimal system for any realistic economic scenario. Selecting one of these three systems is essentially equivalent to economic optimization, but simpler. Procedures are derived in this paper for determining the sizes of the three systems. The conclusion is that the collector areas should be about 1/8, 1/5, and 1/3 of the building floor area. This rule of thumb eliminates the need to design solar systems individually, allowing the possibility of mass-produced homes with standardized solar heating systems.
Date: September 1, 1980
Creator: Bendt, P.
Partner: UNT Libraries Government Documents Department

InterTechnology Corporation cost/benefit analysis report and supporting opinion survey commerical buildings National Solar Demonstration program

Description: Under the Solar Heating and Cooling Demonstration program, solar heated and cooled commercial buildings are to be constructed throughout the nation to show the technical and economic feasibility of solar energy systems and, most importantly, to establish an economically viable solar industry. The questions arise: How many solar energy systems must be installed and where should they be installed to meet these objectives. This report presents an answer to these questions.
Date: January 19, 1976
Partner: UNT Libraries Government Documents Department

Active and passive solar heating of buildings

Description: An overview of both active and passive solar heating approaches for buildings is presented. Passive solar heating concepts--in which the thermal energy flow is by natural means--are described according to five classifications: direct gain, thermal storage wall, solar greenhouses, roof ponds, and convective loops. Results of simulation analyses are presented for a variety of climates. Active systems utilizing both liquid-heating collectors and air-heating collectors are described. Trends in the recent development of solar heating are discussed.
Date: January 1, 1977
Creator: Balcomb, J. D.
Partner: UNT Libraries Government Documents Department

Wallasey school

Description: The Annexe of St. George's School, Wallasey, U.K., is situated on the west coast of England at 53.4/sup 0/ north latitude. Despite rather poor winter solar conditions, it has operated successfully since 1962. Thermally it is a hybrid system, deriving more than half of its heat from the sun, a substantial fraction from incandescent lighting, and a small fraction from the metabolic heat of the students. The immense double-glazed solar wall, 230 ft by 27 ft, covers the entire south face of the building. Internally there is massive thermal storage, with exterior insulation covering the roof and part of the north wall. Temperature control is accomplished by use of lights and ventilation, and by the students' choice of clothing. An extensive, modern data system was used to accumulate operational data for a 19-month period. A thoroughgoing, detailed analysis has been performed to elucidate the operation of this and similar buildings. This paper contains brief descriptions of the building and instrumentation and presents briefly some of the analytical and experimental results.
Date: January 1, 1976
Creator: Perry, J. E. Jr.
Partner: UNT Libraries Government Documents Department

InterTechnology Corporation proposed criteria and recommendations for selection of PON non-residential demonstration sites

Description: This report has been prepared with the objective of providing ERDA with recommended procedures for implementing the strategies set forth in the Systems Level Plan which are considered essential to the success of the National Demonstration Program. In order to logically develop these recommendations, this report is divided into three sections: A. Overview of the Demonstration Program to date. B. Essential Overall Program Strategies. C. Candidate Screening and Selection Criteria. (WDM)
Date: December 1, 1976
Partner: UNT Libraries Government Documents Department

Program support for Active Buildings Division, System Development Branch, Office of Solar Applications for Buildings

Description: Program support work performed by Los Alamos National Laboratory for the Department of Energy, Office of Solar Applications for Buildings, Division of Active Heating and Cooling is described. Background information and accomplishments are included.
Date: January 1, 1981
Creator: Bankston, C.A.
Partner: UNT Libraries Government Documents Department