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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-421-2

International Heat Transfer Conference 15
August, 10-15, 2014, Kyoto, Japan

A Composite Mesoporous Material for and Open Sorption Thermal Energy Storage System

Get access (open in a dialog) DOI: 10.1615/IHTC15.tst.009987
pages 9065-9077

Abstract

A new composite mesoporous honeycomb filter based on Wakkanai siliceous shale (WSS) was developed to be a thermal energy storage medium that can contact the functional fluid directly. The mesopores of the WSS filter was filled with lithium chloride (LiCl) to improve its sorption ability as a new sorption thermal energy storage material in an open system. It exhibits a lower regeneration temperature (60−120°C), and high volumetric heat storage density at the same time. Moreover, at a certain regeneration temperature, it can supply hot air with a relatively constant temperature. Finally, a one-dimensional program was used to predict the heat release process occurring in this open sorption thermal energy storage unit. Our model was validated using the experimental results obtained in the previous experiments, and a relative close agreement was observed. This program was considered to be able to predict the performance of the developed composite filter under various conditions.