The Effect of Heat Transfer Fluid Velocity on Heat Exchange Efficiency in Cold Energy Storage Tank: A Numerical Simulation Study
Journal of Energy and Natural Resources
Volume 9, Issue 2, June 2020, Pages: 70-74
Received: Apr. 14, 2020; Accepted: May 5, 2020; Published: May 14, 2020
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Authors
Xuan-Vien Nguyen, Renewable Energy Research Center, Department of Thermal Engineering, HCMC University of Technology and Education, Ho Chi Minh City, Vietnam
Thanh-Hau Nguyen, Renewable Energy Research Center, Department of Thermal Engineering, HCMC University of Technology and Education, Ho Chi Minh City, Vietnam
Trang-Doanh Nguyen, Renewable Energy Research Center, Department of Thermal Engineering, HCMC University of Technology and Education, Ho Chi Minh City, Vietnam
Tien-Fu Yang, Department of Energy and Refrigerating Air-Conditioning Engineering, National Taipei University of Technology, Taipei, Taiwan
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Abstract
Developing a cold thermal energy storage (CTES) technology is one of the most effective methods to solve energy shortage and environmental pollution all over the world. The current study deals with the modelling and simulation of a cold thermal energy storage tank consisting of an polyvinyl chloride pipe (PVC) heat exchanger partially filled with a phase change material (PCM). Water, as the heat transfer fluid (HTF), flows through the inner tubes and the outer one while propylene glycol as the phase change material fills. This paper focuses on studying the effect of the velocity characteristics on the heat transfer efficiency of polyvinyl chloride pipe (PVC) heat exchanger in cold thermal energy storage system by the numerical simulation. In this paper, the detail of heat transfer performance within the heat exchanger is numerically solved using computational fluid dynamics (CFD), for various velocity as well as different heat transfer for optimal design. Several results of changes in the temperature field at the outlet of the cold thermal energy storage tank are presented when the inlet water velocity changes from 1 m/s to 1.4 m/s. The results indicate that low input water velocity will provide better heat exchange efficiency. However, it is required to make sure that the flow inside the heat exchanger is the turbulent flow because the study uses turbulent flow modules.
Keywords
Cold Thermal Energy Storage, Numerical Simulation, Heat Exchanger, Computational Fluid Dynamics, Energy Saving, Air-conditioning
To cite this article
Xuan-Vien Nguyen, Thanh-Hau Nguyen, Trang-Doanh Nguyen, Tien-Fu Yang, The Effect of Heat Transfer Fluid Velocity on Heat Exchange Efficiency in Cold Energy Storage Tank: A Numerical Simulation Study, Journal of Energy and Natural Resources. Vol. 9, No. 2, 2020, pp. 70-74. doi: 10.11648/j.jenr.20200902.13
Copyright
Copyright © 2020 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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