Enthalpy Transfer Analysis & Calculation about Heat and Moisture Exchanger Process during Air Flowing on Water-Film Channel of Cooling Pad

Aiming at the process characteristic about heat and moisture exchanger process during air flowing on water-film channel of cooling pad, we gave a proposal that the process was regarded as enthalpy transfer process, and then, the concept of enthalpy degree of moisture air and water-film was defined basing on the idea of potential different action. By analogy of heat transfer, enthalpy transfer was analyzed and one dimension enthalpy transfer model during air flowing water-film channel was built, and a calculation example was introduced linking practical application. The results are shown that this theory analysis and calculation way is brief and practical, especially, for the product development of water evaporation cooling fan.