Article ID Journal Published Year Pages File Type
4992160 Applied Thermal Engineering 2017 10 Pages PDF
Abstract
A theoretical frosting limit model is developed in this study for a quasi-counter-flow MEE. The frosting limit model uses analytical relationship between the onset of frosting at the coldest location of the exchange and the inlet air conditions. The model is validated with experimental data and consistent agreements are obtained between the theoretical and experimental data. Parametric studies are conducted using the validated model. The influence of airflow rates, exhaust air temperature and channel spacing on the frosting limit is rather limited compared to the diffusive resistance of moisture transfer. A membrane with improved moisture transfer properties is crucial to implement frost-free operation at normal indoor relative humidities.
Related Topics
Physical Sciences and Engineering Chemical Engineering Fluid Flow and Transfer Processes
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