Development of an acetanilide/benzoic acid eutectic phase change material based thermal energy storage unit for a passive water heating system

Bulletin of Materials Science

KHUSHBOO PUROHIT^1¹  V V S MURTY^1² 

[1] Govt. Holkar Science College, D.A.V.V., Indore 452017, India^1;Non-Conventional Energy Laboratory, Rajiv Gandhi Institute of Petroleum Technology, Jais Amethi 229304, India^2

关键词: Phase change material (PCM);    eutectic;    differential scanning calorimetry (DSC);    thermal energy storage (TES);    passive water heating system (PWHS).;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

In the present work, two organic phase change materials (PCMs) are used to develop a new eutectic PCM for sharp melting point with high latent heat of fusion. Optimized eutectic can be suitable for a passive water heating system(PWHS). The binary eutectic PCMs consisting of different compositions of acetanilide and benzoic acid are prepared and optimized at a composition of 30:70 by weight percentage. Optimized samples are characterized by using differential scanning calorimetry (DSC), Fourier transform infrared spectrophotometry and field-emission scanning electron microscopy.The results of DSC showed that melting temperature and latent heat of the optimized eutectic PCM is found to be 75.56$^{\circ}$C and 193.56 J g$^{−1}$. A negligible change in melting temperature and latent heat of fusion of the optimized eutectic based PCM after 100 accelerated heating and cooling cycles is observed. The prepared eutectic PCM is employed as a thermal energystorage (TES) system for PWHS. The experimental results of a eutectic PCM based TES system for the PWHS show that the use of eutectic helps in enhancing the maximum utility of solar energy during off-shine hours.

【 授权许可】

CC BY