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dc.contributor.authorCulkin, Donald Seanen_US
dc.date.accessioned2019-01-31T17:50:29Z
dc.date.available2019-01-31T17:50:29Z
dc.date.issued1982en_US
dc.identifier.urihttp://hdl.handle.net/10919/87122
dc.description.abstractThe National Bureau of Standards conducted outdoor durability tests on eight different types of commercially available flat plate solar collectors. The test results for five types of collectors are analyzed. The purpose of the test program was to investigate the feasibility of determining the durability of materials by measuring collector thermal efficiency at specified intervals. The important material properties include the solar absorptance and long wave emittance of the absorber surface, solar and long wave transmittance of the cover material and the thermal conductivity of the insulation. Tests were conducted by three independent testing laboratories located in Phoenix, Arizona, Cape Canaveral, Florida, and Palo Alto, California. The test sites were chosen to investigate the effects of the various environmental conditions found in the United States on collector degradation. Three test series were considered to study the effect of various operating conditions on collector degradation. The collectors were exposed to the environment for up to 240 days. The thermal performance test results did not reveal significant degradation in the performance parameters, Fr(Tα) and FrUL, of the collectors considered. Any degradation that may have occurred was overshadowed by experimental uncertainty. The test results did not depend on test series, geographic location or season of the year. Referring the test results to a common set of weather conditions did not reduce the scatter in the results.en
dc.format.extentvii, 143, [2] leaves
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.publisherVirginia Polytechnic Institute and State University
dc.relation.isformatofOCLC# 9078264
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1982.C844en_US
dc.subject.lcshSolar collectors -- Testing
dc.titleAnalysis of flat-plate solar collector durability test dataen_US
dc.typeThesisen_US
dc.contributor.departmentMechanical Engineeringen_US
dc.description.degreeMaster of Scienceen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineMechanical Engineeringen_US
dc.type.dcmitypeText


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