TY - JOUR
T1 - The design and optical analysis of compound parabolic collector
AU - Kuo, Chia Wei
AU - Yen, Pei Shan
AU - Chang, Wen Chey
AU - Chang, Keh Chin
N1 - Funding Information:
This work was financially supported by the Bureau Republic of China, under Grant No. 102 – D0304.
Publisher Copyright:
© 2014 Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license.
PY - 2014
Y1 - 2014
N2 - For various applications of solar thermal energy, the compound parabolic collector (CPC) is frequently used. To overcome the major limits of a traditional CPC, including a rapid increase in height for a larger aperture width and a low concentration ratio, a modified design was proposed in this paper. This research follows the recent study of Jadhav et al., which used only the region below the common focus of parabolas. Through optical analysis, a design modification was achieved by adjusting the vertical position of the receiver. From the results, setting the height of the receiver to 0.46 times the aperture width was found to permit a greater collection range of incident rays. In addition, a better method for evaluating the performance of the CPC was proposed using an intercept factor to account for the total reflection phenomenon caused by the receiver. By applying the approach to different cases of focal length, it was shown that the concentration ratio was not strongly affected by an increasing focal length owing to the low correlation between the concentration ratio and focal length.
AB - For various applications of solar thermal energy, the compound parabolic collector (CPC) is frequently used. To overcome the major limits of a traditional CPC, including a rapid increase in height for a larger aperture width and a low concentration ratio, a modified design was proposed in this paper. This research follows the recent study of Jadhav et al., which used only the region below the common focus of parabolas. Through optical analysis, a design modification was achieved by adjusting the vertical position of the receiver. From the results, setting the height of the receiver to 0.46 times the aperture width was found to permit a greater collection range of incident rays. In addition, a better method for evaluating the performance of the CPC was proposed using an intercept factor to account for the total reflection phenomenon caused by the receiver. By applying the approach to different cases of focal length, it was shown that the concentration ratio was not strongly affected by an increasing focal length owing to the low correlation between the concentration ratio and focal length.
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U2 - 10.1016/j.proeng.2014.06.340
DO - 10.1016/j.proeng.2014.06.340
M3 - Conference article
AN - SCOPUS:84949123901
VL - 79
SP - 258
EP - 262
JO - Procedia Engineering
JF - Procedia Engineering
SN - 1877-7058
T2 - 37th National Conference on Theoretical and Applied Mechanics, NCTAM 2013, Conjoined with the 1st International Conference on Mechanics, ICM 2013
Y2 - 8 November 2013 through 9 November 2013
ER -