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Instantaneous, dimensionless temperature distribution along the reactor’s height at various times t = 0, 0.5, 1, 1.5, 2, 2.5 and 4 s in the absence (solid line) and presence (dashed line) of a paraffin layer. The subscripts B, W, P, and T denote, respectively, the bottom polycarbonate layer, the water layer, the paraffin layer, and the top polycarbonate layer.
