Use of multiple storage elements to improve the second law efficiency of a thermal energy storage system. Part II: Completion of the analysis and presentation of results

Dusan P. Sekulic, Robert J. Krane

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

This work investigates the use of multiple storage units connected in series to improve the thermodynamic efficiency of a sensible heat thermal energy storage system. The study is focused on two-element systems which are shown to have entropy generation numbers up to 38% smaller than those of the corresponding single-storage-element systems. Thus, the use of only two storage elements in series can provide rather dramatic increases in the thermodynamic efficiency of a thermal energy storage system. Also, the heat exchanger sizes (NTU's) predicted for the two-element systems are shown to be small enough to be practical.

Original languageEnglish
Title of host publicationECOS '92 International Symposium
Pages67-72
Number of pages6
StatePublished - 1992
EventECOS '92 International Symposium on Efficiency, Cost, Optimization and Simulation - Zaragoza, Spain
Duration: Jun 15 1992Jun 18 1992

Publication series

NameECOS '92 International Symposium

Conference

ConferenceECOS '92 International Symposium on Efficiency, Cost, Optimization and Simulation
CityZaragoza, Spain
Period6/15/926/18/92

ASJC Scopus subject areas

  • Engineering (all)

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