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Title: Thermal stability experimental study on three types of organic binary phase change materials applied in thermal energy storage system
Authors: Song, Mengjie
Liao, Liyuan
Niu, Fuxin
Mao, Ning
Liu, Shengchun
Hu, Yanxin
Keywords: Engineering::Electrical and electronic engineering
Experimental Study
Thermal Stability
Issue Date: 2018
Source: Song, M., Liao, L., Niu, F., Mao, N., Liu, S., & H, Y. (2018). Thermal stability experimental study on three types of organic binary phase change materials applied in thermal energy storage system. Journal of Thermal Science and Engineering Applications, 10(4), 041018-. doi:10.1115/1.4039702
Series/Report no.: Journal of Thermal Science and Engineering Applications
Abstract: Phase change materials (PCMs) are widely applied in recent decades due to their good thermal performance in energy systems. Their applications are mainly limited by the phase change temperature and latent heat. Many publications are reported around the characteristic improvement of binary organic PCMs. The thermal stability study on organic binary PCMs used in thermal energy storage applications becomes fundamental and meaningful. In this study, thermal stability of three types of organic binary PCMs was experimentally investigated, which are frequently used in building and industry applications. To qualitatively investigate the stability of composite PCMs, differential scanning calorimetry (DSC), and Fourier-transform infrared spectroscopy (FT-IR) spectra testing of samples were also conducted. Experimental results showed that the selected composite PCMs, capric acid (CA), and myristic acid (MA), had the best thermal performances, with its phase change temperature unchanged and heat of fusion decreased only 8.88 J/g, or 4.55%, after 2000 thermal cycles. Furthermore, quality ratio of required PCMs as the variation of operation duration was analyzed to quantitatively prepare the materials. The PCMs can successfully operate about 3125 times when prepared as 1.20 times of its calculated value by starting fusion heat. Conclusions of this research work can also be used for guiding the selection and preparation of other energy storage materials.
ISSN: 1948-5085
DOI: 10.1115/1.4039702
Rights: © 2018 ASME. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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