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핀-튜브형 흡착탑 해석시 입자간 물질전달 모델의 타당성 검증
안상혁(Sang Hyeok Ahn),홍상우(Sang Woo Hong),권오경(Oh Kyung Kwon),정재동(Jae Dong Chung) 대한설비공학회 2013 설비공학 논문집 Vol.25 No.12
This study presents a numerical investigation of the heat and mass transfer kinetics of a fin-tube-type adsorption bed using a two-dimensional numerical model with silica-gel and water as the adsorbent and refrigerant pair. The performance is strongly affected by the heat and mass transfer in the adsorption bed, but the details of the mass transfer kinetics remain unclear. The validity of inter-particle models used to simulate mass-transfer kinetics were examined, such as a constant pressure model and non-constant pressure model, and the valid ranges of the diffusion ratio for each model are proposed. The COP and SCP have been numerically calculated as the performance indexes according to the diffusion ratio. The constant pressure model, which is commonly used in previous research, was found to be valid only in a limited range of diffusion ratio.