ABSTRACT In this study, with an aim to develop a proper effectiveness-NTU relationship of an enthalpy exchanger having a diagonal flow configuration, heat and moisture transfer experiments were conducted. Test samples having a range of diagonal angles were tested, and the effectiveness ratios between the diagonal flow and the cross-flow configuration were obtained as a function of the diagonal angle. Developed correlations of the heat, moisture, and enthalpy predicted the data within 3. Furthermore, it was shown that the moisture transfer effectiveness was highly dependent on the relative humidity and the air temperature.
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