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Journal Articles Journal of Applied Physics Year : 2016

Distributed energy storage: Time-dependent tree flow design

Abstract

This article proposes "distributed energy storage" as a basic design problem of distributing energy storage material on an area. The energy flows by fluid flow from a concentrated source to points (users) distributed equidistantly on the area. The flow is time-dependent. Several scenarios are analyzed: sensible-heat storage, latent-heat storage, exergy storage vs energy storage, and the distribution of a finite supply of heat transfer surface between the source fluid and the distributed storage material. The chief conclusion is that the finite amount of storage material should be distributed proportionally with the distribution of the flow rate of heating agent arriving on the area. The total time needed by the source stream to "invade" the area is cumulative (the sum of the storage times required at each storage site) and depends on the energy distribution paths and the sequence in which the users are served by the source stream. Directions for future designs of distributed storage and retrieval are outlined in the concluding section
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Dates and versions

hal-01849697 , version 1 (13-06-2019)

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A. Bejan, S. Ziaei, Sylvie Lorente. Distributed energy storage: Time-dependent tree flow design. Journal of Applied Physics, 2016, 119 (18), pp.184901. ⟨10.1063/1.4948663⟩. ⟨hal-01849697⟩
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