Starting characteristics of a novel high temperature flat heat pipe receiver in solar power tower plant based of“Flat-front”Startup model

Lin Yang, Xiang Ling, Hao Peng, LuanFang Duan and Xiaoyi Chen

Energy, 2019, vol. 183, issue C, 936-945

Abstract: In this study, a novel high temperature two-phase closed flat heat pipe receiver is proposed and investigated experimentally. In order to simulate the transient startup from frozen state, a transient analysis code for the novel flat heat pipe receiver has been developed. Closed-form analytical solutions for the temperature distribution along the heat pipe length are obtained and experimental tests are undertaken. These closed-form analytical solutions are in good agreement with the experimental data. The theoretical and experimental studies prove that the flat heat pipe receiver with sodium as working fluid has a well startup performance. Experiments were carried out to investigate the temperature uniformity of FHPR under the normal conditions. It is found that the FHPR has well feature of uniformity and stability through startup process experiments with constant heat flux. This research provides guidance for the research and development of flat heat pipe solar receiver, and has important significance for broadening its application in the field of heat utilization of solar energy at high temperature.

Keywords: Solar energy; Heat pipe; Flat-front startup model; Continuum flow transition temperature; Isothermal performance (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:183:y:2019:i:c:p:936-945

DOI: 10.1016/j.energy.2019.07.007

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