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Indexed by:会议论文

Date of Publication:2017-01-01

Included Journals:SCIE、EI、CPCI-S

Volume:100

Issue:1

Abstract:In this paper we present an investigation of the energy performance of a mini trapezoidal solar pond (with surface of 2.4mx2.4m and depth of 1.5 m) which was built in Dalian,China The pond was filled with salty water to form the upper convective zone (UCZ), the non-convective zone (UCZ), and the lower convective zone (LCZ). Energy efficiency, the ratio of available energy to the total energy,was defined basing on the first law of thermodynamics at each zone of the solar pond. The energy efficiency of the three layers were analyzed separately accounting to the simulation results of the temperature distribution in the trapezoidal solar pond. It shows that the energy efficiency of the solar pond is relatively high at the beginning of the operation, and the energy efficiency of the UCZ is the lowest while the LCZ is the highest.