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Heat Transfer Research
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ISSN Online: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.2018021296
pages 1081-1103

THERMAL BEHAVIOR OF THE POT-IN-POT REFRIGERATOR: SIMULATION AND EXPERIMENTAL APPROACH

Sidharth S. Chakrabarti
OP Jindal University, Raigarh, Chattisgarh, 496001, India
P. K. Das
Indian Institute of Technology, Kharagpur, West Bengal, 721302, India

ABSTRACT

Evaporative cooling is basically a passive cooling technique in which a body is cooled by the evaporation of water from its surface. The paper deals with the two-dimensional unsteady mathematical model for a clay pot refrigerator and validated with the experimental results obtained in the environment chamber. The tests were conducted at different relative humidities and dry bulb temperatures and the test results were utilized to obtain the pot efficiency, COP, and the variation of other parameters with the ambient conditions. The presence of the porous medium as clay and sand was given a special attention in modeling the clay pot. The results were also validated with numerical code developed for the above case. The effects of ambient conditions on mass transfer coefficient, evaporation loss, hydraulic conductivity of clay and sand were studied and analyzed.

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