Numerical Analysis on the Condensation Heat Transfer and Pressure Drop Characteristics of the Horizontal Tubes of Modular Shell and Tube-Bundle Heat Exchanger

모듈형 쉘-관군 열교환기에서의 응축열전달 및 압력강하 특성에 관한 수치해석

A numerical analysis of the heat and mass transfer and pressure drop characteristics in modular shell and tube bundle heat exchanger was carried out. Finite Concept Method based on FVM and $k-\varepsilon$ turbulent model were used for this analysis. Condensation heat transfer enhanced total heat transfer rate $4\sim8%$ higher than that of dry heat exchanger. With increasing humid air inlet velocity, temperature and relative humidity, and with decreasing heat exchanger aspect ratio and cooling water velocity, total heat and mass transfer rate could be increased. Cooling water inlet velocity had little effect on total heat transfer.