The linear Fresnel len solar concentrator: transverse tracking error effects, Volume 2889
National Aeronautics and Space Administration, 1977 - Technology & Engineering - 47 pages
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angles of incidence Arcsin Ay)i beam spread width bulk transmittance factor effects on intensity effects on peak effects on profile effects on target Equation evaluated Example Data Extreme ray paths f-number Figures 3(a flux FOCAL PLANE POSITION fraction of incident Fresnel lens solar Groove Density Groove edge losses Half of Lens image plane index of refraction intensity profile intercept plane ith serration jth wavelength interval larger tracking errors law of sines lens center lens half serrations lens solar concentrator lens surface Lens transmittance lost fraction lower half lower lens half misalignments path in lower paths in upper peak concentration profile peak position ray diagram ray trace reflection losses Rohm and Haas small tracking error small transverse tracking Snell's law solar image solar spectrum TEST LENS CHARACTERISTICS thru transmission transmission coefficient Transverse orientation effects transverse tracking error triangle law upper half upper lens half Yr extreme ray