Assessment of thermocline zone’s effective parameters on thermal energy storage systems

Document Type : Mechanics article

Authors

Mechanical Engineering, Department of Engineering, University of Birjand

Abstract

Chilled water thermal energy systems can provide alternatives for the lack of required cooling energy demand. These systems could cover the gap between the energy generations and demand period especially when the available cooling systems such as chillers and cooling towers cannot provide the required cooling energy demand. In the current study energy analysis is done based on the mathematical model of thermally stratified chilled water storage systems. In this paper a cylindrical tank is considered as an environment with thermally stratified storage system. Using this one dimensional transient conduction model, temperature distribution in the storage water, thermocline zone and the wall are presented and important parameters has been investigated. Analyses have been done in three different groups: tank material, dimensions and using insulation. The results have shown although tank dimensions have the minimum influence on temperature distribution but the other parameters are more effective especially the influence of tank insulation.

Keywords

References

 
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Journal of Modeling in Engineering
Volume 19, Issue 64
April 2021
Pages 15-25

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History

  • Receive Date: 11 August 2020
  • Revise Date: 23 October 2020
  • Accept Date: 09 December 2020

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