Coupled cooling method and application of latent heat thermal energy storage combined with pre-cooling of envelope: Method and model development. (15th January 2017)

• Record Type: Journal Article
• Authors: Yuan, Yanping; Gao, Xiangkui; Wu, Hongwei; Zhang, Zujin; Cao, Xiaoling; Sun, Liangliang; Yu, Nanyang
• Is Part Of: Energy. Volume 119(2017)
• Page Start: 817
• Page End: 833
• Publication Date: 2017-01-15
• Subjects: PCM -- Envelope -- LHTES -- Cold storage -- Cooling method; Power resources -- Periodicals; Power (Mechanics) -- Periodicals; Energy consumption -- Periodicals; 333.7905
• DOI: 10.1016/j.energy.2016.11.058
• Languages: English
• ISSNs: 0360-5442

Abstract

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. Highlights: A new coupled cooling method that combines LHTES with PE is proposed. This method can be applicable to a high-temperature and no-power circumstance. The simplified calculation formula of the cold storage quantity of SR is given. An efficient simulation model of the coupled cooling system is established.