Abstract
Background•To test bulk quantity (14.5 kg) of Magnesium chloride hexahydrate in a heat exchanger to find optimum flow rate while cooling•To formulate PCM Stefan number that can access the suitability of a material for a particular application•To numerically simulate the process and to formulate Nusselt number and to correlate it with other non dimensional numbers Methods•Experimental setup was fabricated that consist of boiler, heat exchanger and other auxillary parts. The flow rate in cooling was varied in the steps of 500 lit/hr.•Numerical simulation (CFD) was carried out in Ansys using enthalpy-porosity technique. The results were exported and using regression technique in Python, the Nusselt number correlations for charging and discharging were formulated. Significant findings•Optimum flow rate for the discharging process is 1000 lit/hr•Magnesium chloride hexahydrate is suitable for short term storage•Nusselt number correlation will be useful for formulation of design principles in future.
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