Vol. 7, Issue 5 (2019)
Study on behaviour of thermal energy storage materials under conventional and solar heating systems
Author(s): Mukul Sain, Amandeep Sharma, Gopika Talwar and Narender Kumar
Abstract: Milk is a highly perishable commodity and needs quick processing to prevent growth of microorganisms. Milk processing mainly contains heating and cooling operations and for most of the heating operations, steam is used as a heat transfer fluid. But the increasing energy demand leads to search for alternative renewable energy resources. Sun energy is highly efficient, free to use and does not harm the environment. A comparative study was done to select best heat transfer material for heating operations in milk processing. During the study, different energy storage materials viz. thermal fluids and phase changing material (PCM) in the form of salts were investigated to check their thermal profile, engineering characteristics viz. thermal expansion, melting point, smoke point etc. were evaluated. Sensible heat energy storage of thermal fluids namely; paraffin oil (light), silicon oil and phase changing salts namely; acetamide, magnesium chloride hexahydrate were analyzed for their heat absorption and thermo-physical properties. Among these four materials, paraffin oil was found as highest thermal energy absorbing material. The phase changing salts has more heat storage density as they absorb the heat in the form of latent heat. This leads to the storage of thermal energy for a longer period, once the salts are charged by heating but maximum heat energy was absorbed by paraffin oil (276 ËšC) surging ahead of silicon oil (260 ËšC). Peak temperature achieved by these oils is more than sufficient to cover the entire range of heating operations required in dairy process industries.
Pages: 732-738 | 856 Views 409 Downloads
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How to cite this article:
Mukul Sain, Amandeep Sharma, Gopika Talwar, Narender Kumar. Study on behaviour of thermal energy storage materials under conventional and solar heating systems. Int J Chem Stud 2019;7(5):732-738.
