Experimental Investigation of a Novel Solar Energy Storage Heating Radiator with Phase Change Material

Jianguo Duan; Yang Liu; Liangzai Zeng; Yaxiong Wang; Qingzong Su; Jinrong Wang

doi:10.1021/acsomega.1c00138

Experimental Investigation of a Novel Solar Energy Storage Heating Radiator with Phase Change Material

ACS Omega. 2021 May 20;6(21):13601-13610. doi: 10.1021/acsomega.1c00138. eCollection 2021 Jun 1.

Authors

Jianguo Duan^{1

2}, Yang Liu³, Liangzai Zeng¹, Yaxiong Wang¹, Qingzong Su², Jinrong Wang¹

Affiliations

¹ Inner Mongolia Key Laboratory of Coal Chemical Engineering & Comprehensive Utilization, School of Chemistry and Chemical Engineering, Inner Mongolia University of Science & Technology, Baotou 014010, Inner Mongolia, P. R. China.
² School of Mechanical Engineering, Inner Mongolia University of Science & Technology, Baotou 014010, Inner Mongolia, P. R. China.
³ School of Engineering Science, University of Chinese Academy of Sciences, 19A Yu-quan-lu Road, Shijingshan District, Beijing 100049, P. R. China.

Abstract

A novel solar energy storage heating radiator (SESHR) prototype filled with low-temperature phase change material (PCM) has been developed to accommodate the urgent demand in thermal storage and the fluctuation in renewable energy utilization. This equipment integrated by several independent heat storage units (HSUs) and water and paraffin wax was used as a heat transfer fluid and an energy storage material, respectively. The experimental test platform for low-temperature SESHR was designed and established. The total storage/dissipation time, average storage/dissipation capacity, and the rate and overall thermal efficiency were investigated under different operating conditions. Experimental results showed that a higher temperature difference between the heat source and the melting point of the PCM could significantly improve the heat storage capacity and rate. The heat dissipation rate of the SESHR could be controlled by adjusting the opening ratio of the air convective channel. The average storage rate of the SESHR with 2#PCM reached 1106 W at a heat source temperature of 85 °C, and the average heat dissipation rate reached 80.7 W at 100% opening ratio when the SESHR was filled with 1#PCM.