Abstract: Thermal insulation structure was designed in a ceramic solar panel and water heating in aquaculture efficiency was experimentally studied by measurement of water temperature increment in the solar panels under different conditions to evaluate the efficient water heating in an industrialized aquaculture system. Results showed that water temperature increment and heat gains by the panel were positively correlated both to solar irradiance intensity and significantly affected by thermal insulation of the panel. It was found that the temperature was 2.3 ℃ higher, on average, in the insulated panel than that in uninsulated panel, and 68.8% higher daily heat gain in the former than that in the latter on sunny days. In cloudy days, however, more than 14.3 MJ/m~2 of daily heat gains were lost by uninsulated panel, and the water temperature in uninsulated panel was about 3.1 ℃ lower than that in insulated panel. Also, with the increasing water flow rate, water temperature increment in the panels decreased, while the heat gains increased. There was much high efficiency in insulated panel when the system was operated at high water flow rate. Furthermore, water temperature and daily heat gains were shown to be about 0.3 ℃ and 1.2 MJ/m~2 higher in the covered panel than that in the uncovered panel. It has demonstrated that thermal insulation could significantly improve water heating and solar heat collecting efficiency of the ceramic solar panel, which is promising for water heating in aquaculture industry.
马远洋, 母刚, 张国琛, 张倩, 刘宇, 李秀辰. 陶瓷板太阳能集热器保温隔热设计及养殖水体升温试验[J]. 大连海洋大学学报, 2019, 34(3): 436-443.
MA Yuan-yang, MU Gang, ZHANG Guo-chen, ZHANG Qian, LIU Yu, LI Xiu-chen. Thermal insulation and heating efficiency of aquaculture water of a ceramic solar panel. Journal of Dalian Ocean University, 2019, 34(3): 436-443.
2019, Vol. 34 
