Abstract
This report deals with the heat transfer characteristics of exhaust gases condensing in a plate heat exchanger. A model for zeotropic mixtures is modified and applied to the air/steam mixture. In the calculations, the local heat and mass transfer characteristics in the heat exchanger are taken into account. The calculations are carried out varying the temperature, velocity, and air concentration of the exhaust gases at the inlet of the heat exchanger. When the inlet velocity is doubled, the length of the heat exchanger required to satisfy the design specifications increases by 15%. A decrease in the air concentration of 3% increases the required length by 30%. A decrease in the inlet temperature of 50℃ increases the required length by 31%.
