Coupled cooling method and application of latent heat thermal energy storage combined with pre-cooling of envelope: Method and model development

Yanping Yuan, Xiangkui Gao, Hongwei Wu, Zujin Zhang, Xiaoling Cao, Liangliang Sun, Nanyang Yu

Research output: Contribution to journalArticlepeer-review

62 Citations (Scopus)

Abstract

The traditional cooling methods cannot meet the requirements of safety, stability, reliability and no-power at the same time under some special circumstances. In this study, a new coupled cooling method of Latent Heat Thermal Energy Storage (LHTES) combined with Pre-cooling of Envelope (PE) is proposed and the numerical model of the coupled cooling method is developed. In the current study, a refuge chamber is selected as a case study. A semi-analytical method is used to analyze the cold storage performance of the Surrounding Rock (SR). Afterwards, a numerical model of the coupled cooling system, which takes the heat source, SR, Phase Change Material (PCM) and air heat transfer into consideration, is further established. The study identified that the simplified semi-analytical calculation formula with the diagram of the cold storage quantity of SR are very helpful for engineering calculation. The influence of the Fourier and Biot number on the cold storage capacity of SR can be easily analyzed. In addition, the whole-field model of the coupled cooling system is completely developed based on the PCM unit.
Original languageEnglish
Pages (from-to)817-833
JournalEnergy
Volume119
Early online date18 Nov 2016
DOIs
Publication statusPublished - 15 Jan 2017

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