Open AccessPerformance of meta-material thermal concentrator with sensu-shaped structure through entropy generation approach
Author(s) -
Jiao-Long Wang,
Haochun Zhang,
Chao Ma,
Chengshuai Su,
Han Shen,
Gongnan Xie
Publication year - 2016
Publication title -
thermal science/thermal science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.339
H-Index - 43
eISSN - 2334-7163
pISSN - 0354-9836
DOI - 10.2298/tsci16s3651w
Subject(s) - concentrator , thermal , materials science , entropy (arrow of time) , sensu , thermodynamics , optics , physics , botany , biology , genus
A meta-material thermal concentrator model was simulated with different operating modes and different constructions based on sensu-shaped unit. The temperature and entropy generation rate was obtained by transient calculation. Thermal concentration ratio was defined with temperature and entropy production rate, which was used to analyze and evaluate performance. Thermal concentration ratio had the biggest value and thermal concentrator had the best effect at initial stage of the process. A larger temperature difference or smaller center distance leaded to better thermal control effect