TY - JOUR
T1 - High efficient solar parabolic trough receiver reactors combined with phase change material for thermochemical reactions
AU - Ma, Zhao
AU - Yang, Wei Wei
AU - Li, Ming Jia
AU - He, Ya Ling
N1 - Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/11/15
Y1 - 2018/11/15
N2 - To alleviate the effect of solar radiation fluctuation on solar thermochemical reaction, phase change material (PCM) is applied in solar-chemical reactor to buffer the temperature vibration induced by solar radiation fluctuation. In order to comprehensively study the effect of PCM on chemical reactor, a two-dimensional model was employed to compare the steady performance of 3 different kinds of solar parabolic trough receiver reactors (SPTRR): without PCM (SPTRR0), with PCM near the outer wall (SPTRR1) and with PCM in the center (SPTRR2). Then, the transient performance of three SPTRRs under continuously pulsed solar radiation and real solar radiation fluctuation are, respectively, analyzed. The results showed that comparable chemical performance can be achieved for all three different SPTRRs although the amount of catalysts in SPTRR1 and SPTRR2 are 13.2% less than that in SPTRR0. When the time interval of cloud presence is 3 min, compared with SPTRR0, the averaged methanol conversions in SPTRR1 and SPTRR2 are, respectively, improved by 10.5 and 9.8% and production selectivity (higher H2/CO) is better. And when under a real solar radiation fluctuation, compared to SPTRR0, the averaged methanol conversions in SPTRR1 and SPTRR2 are relatively improved by about 10.7% and 7.2%. SPTRR1 can more effectively attenuate the effect of solar radiation fluctuation and shows better chemical performance than SPTRR2.
AB - To alleviate the effect of solar radiation fluctuation on solar thermochemical reaction, phase change material (PCM) is applied in solar-chemical reactor to buffer the temperature vibration induced by solar radiation fluctuation. In order to comprehensively study the effect of PCM on chemical reactor, a two-dimensional model was employed to compare the steady performance of 3 different kinds of solar parabolic trough receiver reactors (SPTRR): without PCM (SPTRR0), with PCM near the outer wall (SPTRR1) and with PCM in the center (SPTRR2). Then, the transient performance of three SPTRRs under continuously pulsed solar radiation and real solar radiation fluctuation are, respectively, analyzed. The results showed that comparable chemical performance can be achieved for all three different SPTRRs although the amount of catalysts in SPTRR1 and SPTRR2 are 13.2% less than that in SPTRR0. When the time interval of cloud presence is 3 min, compared with SPTRR0, the averaged methanol conversions in SPTRR1 and SPTRR2 are, respectively, improved by 10.5 and 9.8% and production selectivity (higher H2/CO) is better. And when under a real solar radiation fluctuation, compared to SPTRR0, the averaged methanol conversions in SPTRR1 and SPTRR2 are relatively improved by about 10.7% and 7.2%. SPTRR1 can more effectively attenuate the effect of solar radiation fluctuation and shows better chemical performance than SPTRR2.
KW - Phase change material
KW - Solar parabolic trough receiver reactor
KW - Solar radiation instability
KW - Solar thermochemical reaction
UR - http://www.scopus.com/inward/record.url?scp=85054192173&partnerID=8YFLogxK
U2 - 10.1016/j.apenergy.2018.08.119
DO - 10.1016/j.apenergy.2018.08.119
M3 - Article
AN - SCOPUS:85054192173
SN - 0306-2619
VL - 230
SP - 769
EP - 783
JO - Applied Energy
JF - Applied Energy
ER -