TY - JOUR
T1 - Optimization Investigation on Wavy Channel Printed Circuit Heat Exchanger for Solar Energy Powered Brayton Cycle
AU - Li, Y. Z.
AU - Xie, Y. H.
AU - Zhang, D.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2019/8/19
Y1 - 2019/8/19
N2 - The Printed Circuit Heat Exchanger(PCHE) has received widely attention for their high effectiveness and compact size and they appear promising to be employed as the heat exchanger in solar thermal system. In this research, the thermal and hydraulic performance of the wavy channels for solar energy were investigated detailed in different amplitudes, inclined angles and channel diameters. The three-dimensional numerical analysis was performed by computational fluid dynamics(CFD) tool and the model is validated by comparing with previous experimental data. Besides, it was difficult to get the universal correlations of Nusselt number and friction factor for various geometrical parameters. In this article, the Kriging response surface method is applied to predict the friction factor and j factor for PCHE wavy channels in different geometrical parameters based on the CFD simulation results. The thermal-hydraulic characters predicted by Kriging response surface showed overall good agreement with the CFD results. Moreover, one of the most popular multi-objective genetic algorithms NSGA-II was adopted in optimization. to maximize j factor, while minimize the fanning friction factor.
AB - The Printed Circuit Heat Exchanger(PCHE) has received widely attention for their high effectiveness and compact size and they appear promising to be employed as the heat exchanger in solar thermal system. In this research, the thermal and hydraulic performance of the wavy channels for solar energy were investigated detailed in different amplitudes, inclined angles and channel diameters. The three-dimensional numerical analysis was performed by computational fluid dynamics(CFD) tool and the model is validated by comparing with previous experimental data. Besides, it was difficult to get the universal correlations of Nusselt number and friction factor for various geometrical parameters. In this article, the Kriging response surface method is applied to predict the friction factor and j factor for PCHE wavy channels in different geometrical parameters based on the CFD simulation results. The thermal-hydraulic characters predicted by Kriging response surface showed overall good agreement with the CFD results. Moreover, one of the most popular multi-objective genetic algorithms NSGA-II was adopted in optimization. to maximize j factor, while minimize the fanning friction factor.
KW - Kriging response surface
KW - non-dominated sorting genetic algorithms (NSGA-II)
KW - printed circuit heat exchanger(PCHE)
KW - solar thermal system
KW - wavy channels
UR - https://www.scopus.com/pages/publications/85072132256
U2 - 10.1088/1757-899X/556/1/012038
DO - 10.1088/1757-899X/556/1/012038
M3 - 会议文章
AN - SCOPUS:85072132256
SN - 1757-8981
VL - 556
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012038
T2 - 9th International SOLARIS Conference
Y2 - 30 August 2018 through 31 August 2018
ER -