| Summary: | 碩士 === 國立勤益科技大學 === 冷凍空調與能源系 === 107 === This study focused on the measurements of the latent heat effectiveness and the CO2 crossover rate for a cross-flow ERV system using different membranes. In this work, the large scale graphene-based membranes (15 cm x 15 cm) with high water vapor/gas selectivity were fabricated using evaporation method. This composite membrane consists of a graphene oxide (GO) selective layer and a cellulose acetate (CA) polymer support. According to the results, GO/CA composite membrane has a higher latent heat effectiveness of 0.27 (for an effective membrane area 10 cm x 10 cm) than CA membrane and the functional paper (supported zeolite) used in commercial ERVs. In addition, GO/CA composite membrane also has lower CO2 crossover rate of <0.4% compared to other membranes. Consequently, it is concluded that the latent heat effectiveness of GO/CA composite membrane is comparable to the functional paper used in commercial ERVs, and meanwhile it has higher water vapor/CO2 selectivity. A higher quality of supply air would be expected by applying GO-based membrane in membrane-based ERVs.
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