Abstract:The discharge of a thermal energy storage system, which is modeled as a one-dimensional slab of pure, molten material, is investigated semi-analytically. With the molten material initially at its fusion temperature, double-sided freezing is induced from convective and radiative cooling on one side, and convective cooling on the other, resulting in two coalescing freeze fronts. The effects of cyclic solar flux, cyclic sky temperature, and cyclic fluid temperature on the freeze front progression of one side of t… Show more
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