Abstract
An enthalpy exchanger is the key component of an enthalpy recovery ventilator, which is installed in apartments or office buildings to maintain proper indoor air quality. In this study, the performance data of the enthalpy exchanger made of paper membrane were obtained for wide range of temperature and humidity conditions. Using the data, diffusion coefficient correlations were developed through modeling of heat and moisture transfer. The heat transfer effectiveness was relatively constant independent of outdoor temperature condition. On the other hand, the moisture transfer effectiveness was highly dependent on outdoor humidity and temperature. In general, moisture transfer effectiveness increased as relative humidity increased. The moisture transfer effectiveness also increased as temperature difference between indoor and outdoor increased. Moisture diffusion coefficient correlations were developed from the data, which predicted the moisture transfer effectiveness was within [Formula: see text]%.
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