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Optimal geometries of a seasonally adjusted discrete‐mirror solar concentrator employing a tubular absorber
Author(s) -
Mullick S. C.,
Nanda S. K.
Publication year - 1990
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.4440140608
Subject(s) - concentrator , reflector (photography) , optics , range (aeronautics) , plane mirror , solar mirror , parabolic reflector , plane (geometry) , curved mirror , materials science , photovoltaic system , physics , geometry , aerospace engineering , engineering , mathematics , light source , electrical engineering , photovoltaic thermal hybrid solar collector
Abstract The geometrical profile of a seasonally adjusted solar concentrator composed of plane mirror elements and employing a tubular absorber has been optimized. The procedure maximizes concentration for any specified number of mirror elements, and for acceptance angle, with the height of the concentrator or the reflector area as a constraint. The geometrical characteristics of the optimal concentrators have been analysed in detail. The results for a tubular absorber are compared with those for a flat horizontal absorber. Detailed results for a wide range of number of mirror elements, reflector heights, and reflector areas are provided as a design aid. Designs using a glazed tubular absorber are also considered.