TY - GEN
T1 - Irradiation distribution on solar cells inside CPCs with a restricted exit angle
AU - Yu, Yamei
AU - Tang, Runsheng
AU - Xia, Chaofeng
PY - 2012/12/12
Y1 - 2012/12/12
N2 - In this work, irradiation distribution on the base of ideal two-dimensional CPCs with and without a restricted exit angle, to which solar cells are attached, are analyzed by the ray-tracing technique. Results show that, given an acceptance half-angle (θa), for CPCs without a restricted exit angle (CPC-1), radiation flux distribution on the base depends on the incidence angle of solar rays (θ); whereas for CPCs with a restricted exit angle (CPC-2), the flux distribution depends on θand the restricted exit angle (θe). For both CPC-1 and 2 with identical geometric concentration factor (Ct=2) and acceptance half-angle (θa =20), the peak flux concentration ratio on the base of CPC-2 with θe =65o decreases about 43%, 30% and 49% for the radiation at the incident angle of 0°, 10° and 18°, respectively, as compared to CPC-1. This implies that solar flux distribution on the base of CPC-2 is more uniform, thus, more efficient for photovoltaic conversion as compared with CPC-1.
AB - In this work, irradiation distribution on the base of ideal two-dimensional CPCs with and without a restricted exit angle, to which solar cells are attached, are analyzed by the ray-tracing technique. Results show that, given an acceptance half-angle (θa), for CPCs without a restricted exit angle (CPC-1), radiation flux distribution on the base depends on the incidence angle of solar rays (θ); whereas for CPCs with a restricted exit angle (CPC-2), the flux distribution depends on θand the restricted exit angle (θe). For both CPC-1 and 2 with identical geometric concentration factor (Ct=2) and acceptance half-angle (θa =20), the peak flux concentration ratio on the base of CPC-2 with θe =65o decreases about 43%, 30% and 49% for the radiation at the incident angle of 0°, 10° and 18°, respectively, as compared to CPC-1. This implies that solar flux distribution on the base of CPC-2 is more uniform, thus, more efficient for photovoltaic conversion as compared with CPC-1.
KW - CPCs with a restricted exit angle
KW - Compound parabolic concentrators
KW - Flux distribution
KW - Ray-tracing
UR - https://www.scopus.com/pages/publications/84870713209
U2 - 10.4028/www.scientific.net/AMR.588-589.603
DO - 10.4028/www.scientific.net/AMR.588-589.603
M3 - Conference contribution
AN - SCOPUS:84870713209
SN - 9783037855287
T3 - Advanced Materials Research
SP - 603
EP - 607
BT - Advances in Mechanics Engineering
T2 - 2012 International Conference on Advances in Mechanics Engineering, ICAME 2012
Y2 - 3 August 2012 through 5 August 2012
ER -
