Please use this identifier to cite or link to this item: http://ktisis.cut.ac.cy/handle/10488/3755
Title: Low Concentration Ratio Solar Collectors
Authors: Kalogirou, Soteris A. 
Keywords: Compound parabolic collector;Concentrating evacuated tube collectors;Concentration ratio;Flat-plate collectors with diffuse reflectors;Reverse flat-plate collector
Category: Environmental Engineering
Field: Engineering and Technology
Issue Date: 2012
Publisher: Elsevier Ltd
Source: Comprehensive Renewable Energy, 2012, Volume 3: Solar Thermal Systems: Components and Applications, Pages 149-163
Abstract: This chapter presents a review of low concentration ratio solar collectors. The concentration ratio (C) of the collectors belonging in this category is not more than about 10. Because of the low concentration ratio, these collectors usually collect both direct and diffuse solar radiation. According to their concentration ratio, these collectors can be steady (C<. 2) or tracking. When tracking is used and depending on the concentration ratio, this can be intermittent as high accuracy is usually not required. The frequency of tracking increases with the concentration ratio. Higher concentration ratio leads not only to higher collector operating temperature but also to higher tracking accuracy requirements. The types of collectors examined in this chapter are the flat-plate collectors with diffuse reflectors, the reverse flat-plate collector, the compound parabolic collector (CPC), and various designs applied to evacuated tube collectors (ETCs) with either external or internal reflectors. One type of cusp concentrator, which is used in integrated collector storage (ICS) systems, is also examined. 2012 Elsevier Ltd All rights reserved.
URI: http://ktisis.cut.ac.cy/handle/10488/3755
ISBN: 978-0-08-087873-7
DOI: http://dx.doi.org/10.1016/B978-0-08-087872-0.00305-X
Rights: © Elsevier Ltd.
Type: Book Chapter
Appears in Collections:Κεφάλαια βιβλίων/Book chapters

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