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http://dx.doi.org/10.3795/KSME-B.2015.39.7.625

A Numerical Study on the Discharging Performance of a Packing Module in a Thermal Storage Tank  

Lee, Yong Tae (Department of Mechanical Engineering, Sejong Univ.)
Chung, Jae Dong (Department of Mechanical Engineering, Sejong Univ.)
Park, Hyoung Joon (Research & Development Center, Janghan Engineers)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.39, no.7, 2015 , pp. 625-631 More about this Journal
Abstract
In this study, a numerical analysis on the discharging performance of a thermal storage tank completely filled with packing modules is investigated. The enthalpy-porosity method is adopted to analyze phase change phenomenon. Using this method, the melting process of a packing module in the thermal storage tank was studied as the HTF (heat transfer fluid) flows down from the top of the tank at the discharging mode. There are some design factors such as the module arrangement and the number of modules, but this study focuses on the effects of varying the flow rate of the HTF on the outlet temperature of the HTF, molten fraction, and thermal storage density. As the flow rate increases, the outlet temperature of the HTF gets higher and the total melting time of the PCM decreases. Additionally, the thermal storage density is increased so that it reaches about 93% for the desired value.
Keywords
Discharging Performance; Enthalpy Method; Flow Rate; PCM; Thermal Storage Density;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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