Model of hybrid long- term heat storage (PCM and soil) for solar heating system

Document Type : Review Article

Authors

1 Renewable Energy Organization of Iran, TehranP.O.B. 14665-1169 Tehran, Iran.

2 Professor, Faculty of Science and Technology, Keio University, Tokyo, Japan

3 Professor, Department of Architecture, Kogakuin University, Tokyo, Japan

Abstract

The operation of a novel solar-energized long term storage system has been studied using computer simulation. The system uses a phase change material (PCM) consisting CaC12, 6H20 for short-term heat storage; crushed-rocks sensible heat storage bin with enclosed hot water tank and heat pump system for medium-term heat storage, and soil for long-term heat storage. Calculations indicate that this system will provide a higher heat gain than a single bin system studied earlier. The single bin system was studied analytically and theoretically, comparing the use of a PCM and crushed-rocks, and included a heat pump operating from the same bin. Due to analysis and design method of experiment, the effect of six variance factors on system performance for higher PCM efficiency was studied.
 

Keywords

References

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Journal of Renewable and New Energy
Volume 2, Issue 2 - Serial Number 4
September 2015
Pages 72-81

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History

  • Receive Date: 02 August 2017
  • Accept Date: 02 August 2017

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