Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/168424
Title: Simulation and experimental study of thermal storage systems for district cooling system under commercial operating conditions
Authors: SHAO YUNLIN 
SOH KANG YANG ALEXANDER 
WAN YANGDA 
M KUM JA 
KHIN ZAW 
MD RAISUL ISLAM 
CHUA KIAN JON,ERNEST 
Keywords: Phase change material
Storage system design
District cooling system
Mathematical modeling
Issue Date: 15-Jul-2020
Publisher: Energy
Citation: SHAO YUNLIN, SOH KANG YANG ALEXANDER, WAN YANGDA, M KUM JA, KHIN ZAW, MD RAISUL ISLAM, CHUA KIAN JON,ERNEST (2020-07-15). Simulation and experimental study of thermal storage systems for district cooling system under commercial operating conditions. ScholarBank@NUS Repository.
Related Datasets: 10.1016/j.energy.2020.117781
Abstract: The use of ice as a phase change material (PCM) for such latent thermal energy storage (LTES) systems has been well established in industrial thermal storage. Organic phase-change materials (PCMs) such as paraffin waxes present advantages over ice for LTES systems in commercial air conditioning application due to higher phase-change temperatures and negligible volume expansion. In this study, an encapsulated ice thermal storage (EITS) system was analysed, modelled via COMSOL and validated with operating data. The numerical model is employed to analyse a similar theoretical encapsulated PCM (EPCM) system under similar and altered operating conditions using experimentally-derived thermal properties. Key results from this work revealed that the EPCM system is able to attain higher cold energy storage capacity of up to 3 times that of a reference chilled water tank and 9.37% more than that of the EITS under high flow conditions due to greater degrees of solidification. The effect of heat transfer fluid flowrate on solidification ratio and energy charged is also observed to be more pronounced in EPCM systems as compared to EITS systems.
URI: https://scholarbank.nus.edu.sg/handle/10635/168424
ISSN: 0360-5442
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