Characteristics of Heat and Water Transfer in Gas to Gas Membrane Humidifiers with Various Membrane Thickness and Flow Condition

막 두께 및 유동 조건에 따른 PEMFC 용 Gas to Gas 막가습기의 열/물 교환 특성

Characteristics of heat and water transfer in gas-to-gas membrane humidifiers have been experimentally investigated for various humidity rod flow rates of gas and for different thickness of Nafion membrane. The results emphasizes the importance of flow velocity for both water and heat transfer. Also, the effect of membrane thickness has been revealed to be significant to water transfer especially for unsaturated flows, while the significance of membrane thickness is minimal to heat transfer.