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Appl. Sci. 2017, 7(7), 722; doi:10.3390/app7070722

Phase Change Material Selection for Thermal Processes Working under Partial Load Operating Conditions in the Temperature Range between 120 and 200 °C

1
GREA Innovació Concurrent, INSPIRES Research Centre, University of Lleida, Pere de Cabrera s/n, 25001 Lleida, Spain
2
Department of Mechanical Engineering and Construction, Universitat Jaume I, Campus del Riu Sec s/n, 12071 Castelló de la Plana, Spain
3
Department of Materials Science and Physical Chemistry, Universitat de Barcelona, Martí i Franqués 1–11, 08007 Barcelona, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Yulong Ding
Received: 15 June 2017 / Revised: 9 July 2017 / Accepted: 10 July 2017 / Published: 14 July 2017
(This article belongs to the Special Issue Phase Change Material (PCM) 2017)
View Full-Text   |   Download PDF [2322 KB, uploaded 14 July 2017]   |  

Abstract

In some processes, latent heat thermal energy storage (TES) systems might work under partial load operating conditions (the available thermal energy source is discontinuous or insufficient to completely charge the phase change material (PCM)). Therefore, there is a need to study how these conditions affect the discharge process to design a control strategy that can benefit the user of these systems. The aim of this paper is to show and perform at laboratory scale the selection of a PCM, with a phase change temperature between 120 and 200 °C, which will be further used in an experimental facility. Beyond the typical PCM properties, sixteen PCMs are studied here from the cycling and thermal stability point of view, as well as from the health hazard point of view. After 100 melting and freezing cycles, seven candidates out of the sixteen present a suitable cycling stability behaviour and five of them show a maximum thermal-stable temperature higher than 200 °C. Two final candidates for the partial loads approach are found in this temperature range, named high density polyethylene (HDPE) and adipic acid. View Full-Text
Keywords: thermal energy storage (TES); phase change material (PCM); partial load; thermal stability; cycling stability; health hazard; application thermal energy storage (TES); phase change material (PCM); partial load; thermal stability; cycling stability; health hazard; application
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MDPI and ACS Style

Gasia, J.; Martin, M.; Solé, A.; Barreneche, C.; Cabeza, L.F. Phase Change Material Selection for Thermal Processes Working under Partial Load Operating Conditions in the Temperature Range between 120 and 200 °C. Appl. Sci. 2017, 7, 722.

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