An analytical and experimental investigation of a 1.8 by 3.7 meter Fresnel lens solar concentrator
Leon Jett Hastings, Steve L. Allums, Warren S. Jensen, United States. National Aeronautics and Space Administration. Scientific and Technical Information Office
National Aeronautics and Space Administration, Scientific and Technical Information Office, 1977 - Science - 66 pages
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Vn RECEIVER ASSEMBLY THERMAL ASSESSMENT
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300 AVERAGE FLUID 56 cm lens 90 percent target absorber tube wall-to-fluid acrylic Ambient Analytical/experimental approximately AVERAGE FLUID TEMPERATURE Ball State University baseline bench testing collection efficiency versus concentration profile corrugated tube Dowtherm ELECTROPLATE ELECTROPOLISH expansion tank f-number FEP WINDOW focal plane Fresnel lens test heat transfer heliostat interface LENS OPTICAL Lens panel lens performance lens transmittance liters/min longitudinal loss coefficient maximum Measured absorber tube Monsanto Company optical performance OXIDE COATING APPLICATION peak concentration percent at 300°C percent target width Perchloroethylene Plexiglas presented in Figure reflective cavity reflective receiver Rinse Rohm and Haas SILAR smooth tube solar flux levels SOLAR FLUX W/m2 Space Flight Center stainless oxide stainless steel Sun alignment effects Sun tracking deviations surface Thermal Conductivity thermal oxide Therminol 66 transport fluid Transverse Sun alignment trough aperture tube inlet temperature tube thermal losses tube wall-to-fluid temperature tube-fluid utilized versus fluid temperature Viscosity wall-to-fluid temperature differentials Wolverine