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in subjects: "141000 -- Solar Collectors & Concentrators"  
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Comprehensive energy-management program. Hybrid photovoltaic/thermal absorber. Annual report, September 1, 1980-December 31, 1981

Description: Research work was done during the reporting period on the two-part research program: (A) to improve energy conservation through increased unit and system efficiencies, energy management, and system optimization, and (B) to develop a novel, low-cost hybrid photovoltaic/thermal absorber. Performance tests were conducted on all the boilers and chillers on campus. Several corrective measures were indicated and implemented. A detailed survey of energy use by functions and consumption/demand study ha… more
Date: December 1, 1981
Creator: Kumar, G. N.; Sellers, J. P. & Dybczak, Z. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Recycled used fluorescent light tube solar water heater. Final technical report

Description: A project to investigate methods that might be used to utilize old fluorescent light tubes as solar water heater components then to produce a booklet of instructions for others to use to construct their own water heaters is described. Various methods of opening, cleaning and shaping the ends of the tubes were attempted. The reflective material needed inside some of the heaters was mylar and worked quite well but the Btu gain was disappointing. There were problems with the cement used and epoxy … more
Date: January 1, 1979
Creator: Jaquette, F M
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Central receiver solar thermal power system, Phase 1. CDRL Item 2. Pilot plant preliminary design report. Volume IV. Receiver subsystem. [10-MW Pilot Plant and 100-MW Commercial Plant]

Description: The conception, design, and testing of the receiver subsystem proposed by the McDonnell Douglas/Rocketdyne Receiver team for the DOE 10-MW Pilot Plant and the 100-MW Commercial Plant are described. The receiver subsystem consists of the receiver unit, the tower on which the receiver unit is mounted above the collector field, and the supporting control and instrumentation equipment. The plans for implementation of the Pilot Plant are given including the anticipated schedule and production plan (… more
Date: November 1, 1977
Creator: Hallet, Jr., R. W. & Gervais, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Second-law efficiency of solar-thermal cavity receivers

Description: Properly quantified performance of a solar-thermal cavity receiver must not only account for the energy gains and losses as dictated by the First Law of thermodynamics, but it must also account for the quality of that energy. However, energy quality can only be determined from the Second Law. In this paper an equation for the Second-Law efficiency of a cavity receiver is derived from the definition of available energy or availability (occassionally called exergy), which is a thermodynamic prope… more
Date: October 1, 1983
Creator: Moynihan, P. I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Preliminary evaluation of two-element optical concentrators for use in solar photovoltaic systems

Description: The objective of this program was: to evaluate for photovoltaic applications the use of the compound parabolic concentrator design as a field collector--in conjunction with a primary focusing concentrator. The primary focusing concentrator may be a parabolic reflector, an array of Fresnel mirrors, a Fresnel lens, or some other type; Select several candidate configurations of such compound systems (focusing concentrators/CPC field collectors); Perform an analytic evaluation of the technical perf… more
Date: June 30, 1975
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Instruction manual for the program SHAPEFACTOR

Description: A numerical technique is presented for evaluating the geometrical radiant exchange factors (also called shape or view factors) between surfaces with interposed obstructions. Since the program is developed for plane surfaces, arbitrary surfaces are expressed by the juxtaposition of plane surfaces; to simplify the input and output, the program respectively combines and decomposes these elemental surfaces. The data input format, although designed for manual input, is ideally suited for standard th… more
Date: October 1, 1980
Creator: Emery, A.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Solar production of industrial process steam for the Lone Star Brewery. Final report

Description: This report outlines the detailed design and system analysis of a solar industrial process steam system for the Lone Star Brewery. The industrial plant has an average natural gas usage of 12.7 MMcf per month. The majority of this energy goes to producing process steam of 125 psi and 353/sup 0/F at about 50,000 lb/h, with this load dropping to about 6000 lb/h on the weekends. The maximum steam production of the solar energy system is about 1700 lb/h. The climatic conditions at the industrial sit… more
Date: June 29, 1979
Creator: Deffenbaugh, D. M.; Watkins, P. V.; Hugg, S. B.; Kulesz, J. J.; Decker, H. E. & Powell, R. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analytical and experimental system studies of combined photovoltaic/thermal systems. Technical status report No. 12, February-March 1981

Description: Progress in the photovoltaic/thermal (PV/T) research program is indicated on a Milestone Chart, and a monthly history of the funds expended is graphed. Technical progress includes computer simulation of crude oil dewatering process, a simplified technique for predicting long term collector performance, PV/T concentrator collector testing, and participation in national standards development. Appended are a paper describing the collector performance calculation technique, a description of the PV/… more
Date: 1981-04~
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermodynamics of the tantalum-carbon-chlorine-hydrogen system applied to the CVD of carbide/carbon composite materials

Description: Complex equilibrium thermodynamic calculations using the computer code SOLGASMIX-PV were performed for the Ta-Cl-H and Ta-C-Cl-H systems in order to evaluate the chemistry associated with the chemical vapor deposition of Ta, Ta/sub 2/C, and TaC on graphite yarn and woven structures. Results of the thermodynamic calculations were compared with coated materials prepared by hydrogen reduction of TaCl/sub 5/(g) and C/sub 3/H/sub 6/(g) between 1025 and 1223/sup 0/K using a variety of reaction gas co… more
Date: April 1, 1980
Creator: Behrens, R. G.; Newkirk, L. R. & Wallace, T. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Advanced Component Research Facility (ACRES)

Description: A detailed description of the SERI Advanced Component Research Facility (ACRES) is given. Background information explicates the facility's history, developed around the two Omnium-G parabolic dish concentrators. The Omnium-G concentrators and electrical power plant are described. The purpose and a detailed descripttion of ACRES is also given. Included is a description of the measurement capabilities, the controls, and each component of the facility.
Date: July 1, 1980
Creator: Bohn, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

US Photovoltaic Patents, 1988--1990

Description: This document contains US patents on terrestrial photovoltaic (PV) power applications, including systems, components, and materials, as well as manufacturing and support functions. The patent entries in this document were issued from 1988 through 1990. The entries were located by searching USPA, the data base of the US Patent Office. The final search retrieved all patents under the class Batteries, Thermoelectric and Photoelectric'' and the subclasses Photoelectric,'' Testing,'' and Application… more
Date: December 1, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Photovoltaic systems concept study. Final report

Description: The following appendices are included: economic theory, electric utilities, and peak load pricing; evaluating the total cost of an on-site solar energy system; derivation of PEPS cost model; PEPS economic analysis model; scenarios; the effect of governmental ''subsidies'' on the nuclear power industry; discussion of energy industry subsidies; extension of the Hottel-Whillier-Bliss model to the analysis of combined photovoltaic/thermal flat plate collectors; analysis of solar-augmented rock-bed/… more
Date: April 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Workshop on Satellite Power Systems (SPS) effects on optical and radio astronomy

Description: The impacts of the SPS on astronomy were concluded to be: increased sky brightness, reducing the effective aperture of terrestrial telescopes; microwave leakage radiation causing erroneous radioastronomical signals; direct overload of radioastronomical receivers at centimeter wavelengths; and unintentional radio emissions associated with massive amounts of microwave power or with the presence of large, warm structures in orbit causing the satellites to appear as individual stationary radio sour… more
Date: April 1, 1980
Creator: Stokes, G.M. & Ekstrom, P.A. (eds.)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Line-focus solar thermal energy technology development. FY 79 annual report for Department 4720

Description: The primary role of the Solar Energy Projects Department II (4720) is the development, evaluation, and testing of line-focus solar thermal technology. This report of FY 79 progress and accomplishments is divided into two parts: (1) Component and Subsystem Development including the design and analysis of collector modules, their components, and associated materials and processes, and (2) Systems and Applications Development, involving larger configurations of solar thermal line-focus systems. Th… more
Date: April 1, 1980
Creator: Bergeron, K D; Champion, R L & Hunke, R W
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

SOLERAS - Solar Controlled Environment Agriculture Project. Final report, Volume 4. Saudi Engineering Solar Energy Applications System Design Study

Description: Literature summarizing a study on the Saudi Arabian solar controlled environment agriculture system is presented. Specifications and performance requirements for the system components are revealed. Detailed performance and cost analyses are used to determine the optimum design. A preliminary design of an engineering field test is included. Some weather data are provided for Riyadh, Saudi Arabia. (BCS)
Date: January 1, 1985
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Solar-collector manufacturing activity, July through December, 1981

Description: Solar thermal collector and solar cell manufacturing activity is both summarized and tabulated. Data are compared for three survey periods (July through December, 1981; January through June, 1981; and July through December, 1980). Annual totals are also provided for the years 1979 through 1981. Data include total producer shipments, end use, market sector, imports and exports. (LEW)
Date: March 1, 1982
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Central receiver solar thermal power system, Phase 1. CRDL Item 2. Pilot plant preliminary design report. Volume III, Book 2. Collector subsystem

Description: The methods and plans for the manufacture of the 10-MW collector heliostats and associated controls for the pilot plant are detailed. An in-depth description of the production, installation, and verification testing of heliostats for the pilot plant is presented. Specifications for the performance, design, and test requirements for the pilot plant collector subsystem are included. Also, a heliostat location summary report is given. (WHK)
Date: October 1, 1977
Creator: Hallet, Jr., R. W. & Gervais, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

CONC/11: a computer program for calculating the performance of dish-type solar thermal collectors and power systems

Description: CONC/11 is a computer program designed for calculating the performance of dish-type solar thermal collectors and power systems. It is intended to aid the system or collector designer in evaluating the performance to be expected with possible design alternatives. From design or test data on the characteristics of the various subsystems, CONC/11 calculates the efficiencies of the collector and the overall power system as functions of the receiver temperature for a specified insolation. If desired… more
Date: February 15, 1984
Creator: Jaffe, L. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Solar central receiver prototype heliostat: phase 1. Appendices to final technical report, September 30, 1977-June 24, 1978

Description: The appendices include (A) design compliance with DOE 001 specification, (B) General Electric heliostat parts list and drawings, (C) specular solar transmittance and reflectance measurements, (D) preliminary draft-design specification for conceptual design of automatic foundation machine, (E) Ingersoll-Rand critique of GE automatic foundation machine concept, and (F) appendix to section 4.0 - controls and drives. (WHK)
Date: October 1, 1978
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Investigation of methods to transfer heat from solar liquid-heating collectors to heat storage tanks. Final report

Description: A study was made of the methods available to transfer heat from the collector to the water storage tank in water heating systems. In counterflow heat exchangers used in double loop water heating systems, it was found to be more important to use a high water flowrate than a high heat transfer fluid flowrate. It was earlier thought to be best to have matched WC/sub p/ (mass flowrate-specific heat) products in the loops. It was shown in this study that the water WC/sub p/ product should be about t… more
Date: April 20, 1978
Creator: Horel, J. D. & de Winter, F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Heliostat manufacturing cost analysis. Volume 1

Description: This study has two primary objectives. The first is to provide a detailed cost evaluation of the second generation of DOE heliostats, from which repowering heliostat designs are likely to be derived. A second objective is to provide an analytical foundation for the evaluation of futue heliostat designs. The approach taken for this study was to produce a cost estimate for the production of the McDonnell Douglas prototype design by generating estimates of the materials, labor, overhead, and facil… more
Date: October 1, 1979
Creator: Drumheller, K; Schulte, S C; Dilbeck, R A & Long, L W
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Quality site seasonal report, Tucson Job Corps Center, SFBP (Solar in Federal Buildings Program) 1751, November 1984 through July 1985

Description: The active solar Domestic Hot Water (DHW) system at the Tucson Job Corps Center was designed and constructed as part of the Solar in Federal Buildings Program (SFBP). This retrofitted system is one of eight of the systems in the SFBP selected for quality monitoring. The purpose of this monitoring effort is to document the performance of quality state-of-the-art solar systems in large Federal buildings. The systems are unique prototypes. Design errors and system faults discovered during the moni… more
Date: October 15, 1987
Creator: Logee, T.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Double-exposure collector system. Technical progress report, April 1-June 30, 1979

Description: A retrofit solar water-heating system has been installed in a three-story apartment building at Drexel University. The system employs two conventional collector banks (10 PPG collectors) mounted at the latitude angle for Philadelphia of 40 deg from the horizontal and two double-exposure collectors (DEC's) mounted vertically in mirrored enclosures. Although the DEC units are being used for year-round domestic water heating for the building, they are designed to provide maximum output in the… more
Date: July 30, 1979
Creator: Larson, D. C. & Savery, C. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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