Experimental study on the heat transfer characteristics of a new type flat micro heat pipe heat exchanger with latent heat thermal energy storage

Y. H. DiaoDepartment of Building Environment and Facility Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, ChinaCorrespondence[email protected]

S. WangDepartment of Building Environment and Facility Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, China

C. Z. LiDepartment of Building Environment and Facility Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, China

Y. H. ZhaoDepartment of Building Environment and Facility Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, China

T. T. ZhuDepartment of Building Environment and Facility Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, China

Abstract

An experimental energy storage system has been designed using a new type flat micro heat pipe heat exchanger that incorporates a moderate-temperature phase change material paraffin with a melting point of 58°C. The basic structure, working principles, and design concept are discussed. The heat transfer process during the charging and discharging of the heat exchanger under various operating conditions has been experimentally investigated. Results show that the performance of the new type flat micro heat pipe was steady and efficient during charging and discharging. The average thermal storage power and absorption efficiency have been determined to be approximately 537 W and 92.5%, respectively.

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Experimental study on the heat transfer characteristics of a new type flat micro heat pipe heat exchanger with latent heat thermal energy storage

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Experimental study on the heat transfer characteristics of a new type flat micro heat pipe heat exchanger with latent heat thermal energy storage

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