NDLI: Study on a PCM Heat Storage System for Rapid Heat Supply

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Wei, Jinjia Kawaguchi, Yasuo Hirano, Satoshi Takeuchi, Hiromi
Copyright Year	2004
Abstract	A thermal energy storage system employing phase change material (PCM) for rapid heat discharge was studied numerically and experimentally. In the numerical studies, paraffin wax FNP-0090 (product of Nippon Seiro Co. Ltd.) was used as the PCM and was encapsulated in four different capsules (sphere, cylinder, plate and tube) for investigating the effects of geometrical configurations. The capsules filled with PCM were placed in a rectangular tank. Water was used as the working fluid in a rectangular tank. Water was used as the working fluid in the circulation system to discharge the storage tank. A one-dimensional model was used for solving the water temperature distribution along the flow direction in the tank and a conductive one-dimensional phase change model was used for simulating the solidification process of the PCM inside the capsules. The effects of the capsule diameter and shell thickness and the void fraction on the performance of the heat storage system were also investigated. Results shown include the variation of the outlet water temperature of the storage tank with time, the temperature and heat release distributions of the PCM along the flow direction in the tank at different times, etc. A plate heat exchanger was used as a heat storage tank for experimental study. FNP-0090 was filled into the channels (the space between two plates) of one side of the heat exchanger and water flowed in the channels of the other side of the heat exchanger. The effect of flow rate and initial temperature on the outlet fluid temperature and heat release was investigated. The numerical results and the experimental data agreed within 10%.
Sponsorship	Heat Transfer Division
Starting Page	267
Ending Page	274
Page Count	8
File Format	PDF
ISBN	079184711X
DOI	10.1115/IMECE2004-61025
Volume Number	Heat Transfer, Volume 1
Conference Proceedings	ASME 2004 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2004-11-13
Publisher Place	Anaheim, California, USA
Access Restriction	Subscribed
Subject Keyword	Water Temperature Shells Thermal energy storage Heat exchangers Flow (dynamics) Water temperature Solidification Phase change materials Heat Fluids Heat storage Plates (structures) Storage tanks Porosity Cylinders Paraffin wax
Content Type	Text
Resource Type	Article

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