Combined Heat and Mass Transfer Under Different Inlet Subcooling Modes During NH_3-H_2O Falling Film absorption Process

摘要

Experiments were conducted for ammonia-water falling film absorption in a plate heat exchanger with offset strip fins. The objectives of this paper were to analyze combined heat and mass transfer during the ammonia-water absorption process under different inlet subcooling modes, and to obtain heat transfer coefficients (Nusselt number). This paper examined the effects of the inlet subcooling modes, the inlet concentration difference liquid Reynolds number, and vapor Reynolds number on the heat transfer performance.