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Improved design of three-dimensional lens for low concentrator PV modules; Teishukogata taiyo denchiyo sanjigen lens no koseinoka ni kansuru kenkyu

Abstract

Attention is paid to reduction in area required for solar cells by solar concentration as a means of solving cost limits of solar cells and unstable supply of Si materials. Low concentration solar cells are effective from the aspects of utilization of scattered light and unnecessary ray tracing. The optical concentration ratio was calculated of three-dimensional lens having design values of various north/south and east/west direction allowable incidence half angles. The three-dimensional lens are designed by cutting a rectangular parallelepiped by the two-dimensional composite elliptical plane designed by various allowable incidence half angles from two directions of north/south and east/west. Using Perez`s sky solar radiation models and meteorological data HASP, calculated were the annual accumulated global radiation ratio on an inclined surface and the optical efficiency. Calculated were the solar cell area ratio and solar concentration area ratio of the concentration type to obtain solar radiation the same as that of the planar type. From the optimization calculation, it was found that lens are optimal which have design values of north/south and east/west direction allowable incidence half angles of 30-70deg. The solar cell area ratio is 57% and the solar concentration area ratio is 1.2 times. It was found that  More>>
Authors:
Goma, S; Yoshioka, K; Saito, T [1] 
  1. Tokyo Univ. of Agriculture and Technology, Tokyo (Japan)
Publication Date:
Nov 25, 1997
Product Type:
Conference
Report Number:
ETDE/JP-98753622; CONF-9711143-
Reference Number:
SCA: 140501; 141000; PA: JP-98:0G1112; SN: 98001983503
Resource Relation:
Conference: 1997 JSES/JWEA joint conference, Taiyo/furyoku energy koen, Aichi (Japan), 28-29 Nov 1997; Other Information: PBD: 25 Nov 1997; Related Information: Is Part Of Proceedings of JSES/JWEA Joint Conference (1997); PB: 454 p.; Taiyo/Furyoku energy koen ronbunshu (1997)
Subject:
14 SOLAR ENERGY; LENSES; SPACE DEPENDENCE; SOLAR CELLS; SOLAR CONCENTRATORS; PERFORMANCE; COST; RESOURCE DEPLETION; DIFFUSE SOLAR RADIATION; SOLAR TRACKING; INCIDENCE ANGLE; TOLERANCE; CONCENTRATION RATIO; ELLIPTICAL CONFIGURATION; MATHEMATICAL MODELS; INSOLATION; METEOROLOGY; INCLINATION; OPTIMIZATION
OSTI ID:
366061
Research Organizations:
Japan Solar Energy Society, Tokyo (Japan)
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Other: ON: DE98753622; TRN: JN98G1112
Availability:
Available from Japan Solar Energy Society, 44-14, Yoyogi 2-chome, Shibuya-ku, Tokyo, Japan; OSTI as DE98753622
Submitting Site:
NEDO
Size:
pp. 385-388
Announcement Date:

Citation Formats

Goma, S, Yoshioka, K, and Saito, T. Improved design of three-dimensional lens for low concentrator PV modules; Teishukogata taiyo denchiyo sanjigen lens no koseinoka ni kansuru kenkyu. Japan: N. p., 1997. Web.
Goma, S, Yoshioka, K, & Saito, T. Improved design of three-dimensional lens for low concentrator PV modules; Teishukogata taiyo denchiyo sanjigen lens no koseinoka ni kansuru kenkyu. Japan.
Goma, S, Yoshioka, K, and Saito, T. 1997. "Improved design of three-dimensional lens for low concentrator PV modules; Teishukogata taiyo denchiyo sanjigen lens no koseinoka ni kansuru kenkyu." Japan.
@misc{etde_366061,
title = {Improved design of three-dimensional lens for low concentrator PV modules; Teishukogata taiyo denchiyo sanjigen lens no koseinoka ni kansuru kenkyu}
author = {Goma, S, Yoshioka, K, and Saito, T}
abstractNote = {Attention is paid to reduction in area required for solar cells by solar concentration as a means of solving cost limits of solar cells and unstable supply of Si materials. Low concentration solar cells are effective from the aspects of utilization of scattered light and unnecessary ray tracing. The optical concentration ratio was calculated of three-dimensional lens having design values of various north/south and east/west direction allowable incidence half angles. The three-dimensional lens are designed by cutting a rectangular parallelepiped by the two-dimensional composite elliptical plane designed by various allowable incidence half angles from two directions of north/south and east/west. Using Perez`s sky solar radiation models and meteorological data HASP, calculated were the annual accumulated global radiation ratio on an inclined surface and the optical efficiency. Calculated were the solar cell area ratio and solar concentration area ratio of the concentration type to obtain solar radiation the same as that of the planar type. From the optimization calculation, it was found that lens are optimal which have design values of north/south and east/west direction allowable incidence half angles of 30-70deg. The solar cell area ratio is 57% and the solar concentration area ratio is 1.2 times. It was found that by making the module area 1.2 times, more than 40% of the solar cells used can be saved. 5 refs., 8 figs.}
place = {Japan}
year = {1997}
month = {Nov}
}