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Low-cost site-assembled solar collector designs for use with heat pumps

Description: Four low cost solar collector designs have been produced for use in solar assisted heat pump systems. Three principles guided the design: the use of air as the heat transfer medium, the use of on-site easy-to-install construction rather than modularized prefabricated construction, and the collection of solar energy at reduced temperatures.
Date: May 1, 1977
Creator: Andrews, J. W. & Wilhelm, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thin-film flat-plate solar collectors for low-cost manufacture and installation

Description: A flat-plate solar energy collector design using thin-film plastics in both the absorber and glazing is described. The design approach proceeded in two steps. First, cost constraints on solar collectors were determined using reasonable economic projections. Second, engineering was applied only to those ideas which had hope of falling within those cost boundaries. The use of thin-film plastics appeared most attractive according to these criteria. The nature of the marketing and distribution netw… more
Date: March 1, 1980
Creator: Andrews, J. W. & Wilhelm, W. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Need for and evaluation of hail protection devices for solar flat plate collectors. Final report, June 1978-March 1980

Description: A brief summary of the hail risk work previously done under this contract is given, and a summary evaluation of hail impact resistance standards currently being developed is presented. Simulated hail impact test data, field data, and the impact resistance of commercially available glazings are discussed. The use of screens for protection against hail and the threat of vandalism to solar flat plate collectors are discussed. (WHK)
Date: March 1, 1980
Creator: Armstrong, P R; Cox, M & de Winter, F
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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SOLAR ENERGY PROGRAM: CHAPTER FROM THE ENERGY AND ENVIRONMENT ANNUAL REPORT 1979

Description: Solar energy has become a major alternative for supplying a substantial fraction of the nation's future energy needs. The Department of Energy (DOE) supports activities ranging from the demonstration of existing technology to research on future possibilities; and at LBL projects are in progress which span that range of activities. To assess various solar applications it is important to quantify the solar resource. In one project, LBL is cooperating with the Pacific Gas and Electric Company in t… more
Date: October 1, 1980
Creator: Authors, Various
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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National Program for Solar Collector Research, Development, and Commercialization

Description: The National Program for Research and Development in Solar Heating and Cooling has now been largely implemented. The collector research, development and commercialization program is the largest element of the R and D Program consisting of approximately 100 projects in the development and commercialization of various types of collectors and relevant studies or research in collector technology and materials. The objectives, scope and structure of the collector program are described. The projects … more
Date: January 1, 1978
Creator: Bankston, C. A. & Sargent, S. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Annual-cycle thermal energy storage for a community solar system: details of a sensitivity analysis

Description: This report presents results and conclusions of a simulation and sensitivity analysis of community-sized, annual-cycle thermal-energy-storage (ACTES) solar energy systems. The analysis which is based on an hourly simulation is used to (1) size systems in 10 locations, (2) identify critical design parameters, and (3) provide a basic conceptual approach for future studies and designs. This research is a forerunner to an economic analysis of this particular system (based on large constructed tanks… more
Date: July 1, 1980
Creator: Baylin, F.; Monte, R. & Sillman, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Low-cost solar collector test and evaluation. Final report

Description: Project was to test and evaluate a highly efficient low cost solar collector and to make this technology available to the average homeowner. The basic collector design was for use in mass production, so approximately forty collector panels were made for testing and to make it simple to be hand built. The collectors performed better than expected and written and visual material was prepared to make construction easier for a first time builder. Publicity was generated to make public aware of bene… more
Date: unknown
Creator: Benjamin, C. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Double absorber plate. Final technical report, October 1, 1977-November 15, 1978

Description: An air collector is described that avoids the high air side pressure drops and the use of inlet and outlet header ducts to connect collectors in parallel. The precontract collector design is shown. The major novelty of the collector rests in having two absorber plates which heat a relatively broad air passage. The current collector utilizes a 4 mil fiberglass reinforced plastic sheet (Kalwall) outer glazing, a 1 mil fluorocarbon (Teflon) inner anticonvection layer/inner glazing, a partially bla… more
Date: November 1, 1978
Creator: Berman, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Heat pipes applied to flat-plate solar collectors. Final report

Description: The objective of this program was to analytically and experimentally investigate the use of heat pipes in flat-plate solar collectors. Heat pipes are passive heat transport devices which utilize a closed evaporation-condensation cycle. Because of their high equivalent conductance, they appear to be well suited to transport heat from the solar absorber to an air or liquid distribution system. The program consisted of the following tasks: (I) Configuration Studies, (II) Parametric Performance Stu… more
Date: May 1, 1976
Creator: Bienert, W. B. & Wolf, D. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Keith Keesecker Office Building. Final technical report

Description: This two story office building has 4000 ft/sup 2/ of space and a 2000 ft/sup 2/ basement. The solar heating system has 936 ft/sup 2/ of flat plate collectors and a phase change storage system. A description of the system operation, the acceptance test plan, as built wiring and piping schematics, and predicted performance data are included. (MHR)
Date: January 26, 1981
Creator: Bliege, C.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of a freeze-tolerant solar water heater using crosslinked polyethylene as a material of construction. Final report, June 18, 1976--October 1, 1977

Description: The feasibility of building a freeze-tolerant absorber for a solar water heater out of carbon-black-reinforced crosslinked polyethylene has been explored. Ten-foot tube specimens made from various crosslinked polyethylene formulations were filled with water at various pressures, and then placed into a deep freeze, then thawed and frozen again for 100 freeze-thaw cycles, or until the tube specimen failed. Tube diameters were measured before and after each freezing to determine how much distentio… more
Date: January 1, 1978
Creator: Bradley, J.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analysis of photovoltaic total energy systems for single family residential applications

Description: The performance and cost-effectiveness of three photovoltaic total energy system concepts designed to meet the thermal and electrical demands of a typical single family house are compared. The three photovoltaic total energy system concepts considered are: (1) All-photovoltaic systems. Passively air-cooled photovoltaic panels provide electricity to meet both electrical and thermal demands. (2) Separate-panel systems. Solar thermal panels provide thermal energy, while passively air-cooled photov… more
Date: August 1, 1978
Creator: Chobotov, V. & Siegel, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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OUT Success Stories: Solar Hot Water Technology

Description: Solar hot water technology was made great strides in the past two decades. Every home, commercial building, and industrial facility requires hot water. DOE has helped to develop reliable and durable solar hot water systems. For industrial applications, the growth potential lies in large-scale systems, using flat-plate and trough-type collectors. Flat-plate collectors are commonly used in residential hot water systems and can be integrated into the architectural design of the building.
Date: August 31, 2000
Creator: Clyne, R.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
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Improvement of solar air collectors: Study and Experimental Research Project. Final report, May 1976-June 1978

Description: Literature and patents relevant to solar air-heating collectors were reviewed. The design constraints are listed. The analysis considered the heat transfer and pressure loss characteristics of the various designs. Three absorbers along with the baseline design were mounted in identical collector bodies and subjected to thermal efficiency tests on Solaron's collector test stand. The testing was done simultaneously on the four panels in a side-by-side collector test. Various manufacturing techniq… more
Date: January 1, 1978
Creator: Cole-Appel, B. E.; Loef, G. O. G.; Shaw, L. E. & Fischer, B. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analysis of an Improved Solar-Powered Cooling System Utilizing Open-Cycle Absorbent Regeneration

Description: A solar-powered cooling system which promises high system C.O.P.'s and low collector costs is analyzed. It consists of a desiccant and an absorption cooling system operating in series to both dry and cool the air. A common solution of lithium chloride is used as the absorbant. The lithium chloride solution is regenerated by evaporating the excess water to the atmosphere in an ''open'' collector. This collector consists merely of a blackened flat surface. The weak solution of lithium chloride is… more
Date: January 1, 1978
Creator: Collier, R. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Solar Collector Related Research and Development in the United States for Heating and Cooling of Buildings

Description: Some of the research funded by the Research and Development Branch of the Heating and Cooling Division of Solar Energy of the United States Energy Research and Development Administration is described. Specifically, collector and collector materials research is reported on during FY-1977. The R and D Branch has funded research in open and closed cycle liquid heating flat plate collectors, air heating flat plate collectors, heat pipe collectors, concentrating collectors, collector heat transfer s… more
Date: January 1, 1978
Creator: Collier, R. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Statistical model for assessing the risk of hail damage to any ground installation. Technical report, June 1978-March 1979

Description: This report describes a statistical model which has been developed to determine the risk of damage by large hail to any ground installation (such as a solar flat plate collector). The model is based on data for the number of haildays per year, hailstone size distribution, and storm severity (expressed in number of hailstones per square meter per storm). Other than parameters derived from the raw meteorological data available, the parameters of the model are the number of years of surface exposu… more
Date: September 1, 1979
Creator: Cox, M & Armstrong, P R
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Performance of an experimental solar-driven absorption air conditioner. Annual report, July 1975--September 1976

Description: An important pathway for the use of solar energy for space conditioning of buildings is the development of a heat-actuated air conditioner that can operate with the temperatures available from flat-plate solar collectors and use air cooling for disposal of the waste heat. The solar heating and cooling program of the Lawrence Berkeley Laboratory is exploring the use of the ammonia-water absorption cycle for this purpose. Results of the initial tests of an experimental system that has been fabric… more
Date: January 1, 1977
Creator: Dao, K.; Simmons, M.; Wolgast, R. & Wahlig, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Commercial building unitary heat pump system with solar heating. Final report, May 1, 1976--October 31, 1977

Description: A generalized dynamic computer program (SYRSOL) has been developed for the mathematical simulation of the thermal behavior of multi-zone solar heated buildings. The system modeled employs a series of water-to-air heat pumps connected in a closed loop, flat-plate liquid cooled solar collector, a water storage tank, and a cooling tower. Weather data are represented by sinusoids, which provide a convenient and economical alternative to weather tapes. Results indicate that the use of sinusoidal fun… more
Date: May 1, 1978
Creator: Drucker, E.E.; Ucar, M. & LaGraff, J.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Evaluation of High Performance Evacuated Tubular Collectors in a Residential Heating and Cooling System: Colorado State University Solar House I. Report for October 1, 1976--September 30, 1977

Description: CSU Solar House I is configured with a prototype Corning evacuated tubular collector and a new Arkla lithium bromide water chiller designed for solar operation. Data have been collected for this configuration since January 1977. Prior to that time and since mid-1974, Solar House I has operated with a flat-plate collector and a previous Arkla LiBr air conditioner modified to operate in the lower solar temperature ranges. Project objectives were to develop an operating and control system for the … more
Date: March 1, 1978
Creator: Duff, W. S.; Conway, T. M.; Loef, G. O. G.; Meredith, D. B. & Pratt, R. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Performance of Residential Solar Heating and Cooling System With Flat-Plate and Evacuated Tubular Collectors: Csu Solar House I

Description: Measurements in Solar House I at Colorado State University have provided comparison data on space heating, water heating, and cooling by systems in which flat-plate collectors and evacuated tube collectors were used. Data were procured on 47 days during operation of the flat-plate collector and on 112 days when the house was heated or cooled by the evacuated tube collector system. It was concluded that the system comprising an evacuated tubular collector, lithium bromide absorption water chille… more
Date: January 1, 1978
Creator: Duff, W. S.; Conway, T. M.; Loef, G. O. G.; Meredith, D. B. & Pratt, R. B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Performance of Residential Solar Heating and Cooling System With Flat-Plate and Evacuated Tubular Collectors: Csu Solar House I

Description: Measurements in Solar House I at Colorado State University have provided comparison data on space heating, water heating, and cooling by systems in which flat-plate collectors and evacuated tube collectors were used. Data were procured on 47 days during operation of the flat-plate collector and on 112 days when the house was heated or cooled by the evacuated tube collector system. It was concluded that the system comprising an evacuated tubular collector, lithium bromide absorption water chille… more
Date: January 1, 1978
Creator: Duff, W. S.; Conway, T. M.; Loef, G. O. G.; Meredith, D. B. & Pratt, R.B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Solar radiation data manual for flat-plate and concentrating collectors

Description: For designers and engineers of solar energy-related systems, the Solar Radiation Data Manual for Flat-Plate and Concentrating Collectors gives the solar resource available for various types of collectors for the US and its territories. The data in the manual were modeled using hourly values of direct beam and diffuse horizontal solar radiation from the National Solar Radiation Data Base (NSRDB). The NSRDB contains modeled (93%) and measured (7%) global horizontal, diffuse horizontal, and direct… more
Date: unknown
Creator: Dunlap, M. A.; Marion, W. & Wilcox, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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