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Describes a method developed to determine the effects of fin spacing, coil depth, face velocity and fan type on the frosting of evaporators, using computer-simulated evaporator and condensing unit characteristics. Notes a study made to illustrate the use of the method and to assess the effects on heat pump performance under frosting conditions.


KEYWORDS: Heat pumps, evaporators, frost, calculating.

Citation: ASHRAE Transactions, vol.96, pt. 1, Atlanta, 1990