A Hybrid Thermal Energy Storage Device , Part 2 : Thermal Performance Figures of Merit

Abstract

Two figures of merit for hybrid Thermal Energy Storage (TES) units are developed: the volumetric figure of merit, Ṽ, and the temperature control figure of merit, DT̃ . A dimensional analysis shows that these quantities are related to the performance specification of the storage unit and its physical design. A previously benchmarked semi-empirical finite volume model is used to study the characteristics of various plate-type TES-unit designs. A parametric study is used to create a database of optimal designs, which is then used to form simple correlations of Ṽ and DT̃ in terms of design requirements and attributes. A preliminary design procedure utilizing these figures of merit is suggested. Sample calculations show that these correlations can be used to quickly determine the design attributes of a plate-type TES-unit, given design requirements. @DOI: 10.1115/1.1646420#

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Cite this paper

@inproceedings{Zheng2004AHT, title={A Hybrid Thermal Energy Storage Device , Part 2 : Thermal Performance Figures of Merit}, author={Ning Zheng and Robert Andrew Wirtz}, year={2004} }