NUMERICAL STUDY OF LIQUID DESICCANT SYSTEM WITH INTERNAL SOLUTION CYCLE

摘要

Taking LiBr-H2O liquid desiccant system with the form of counter-flow, random packed and internal solution cycle as the object. Numerical study was carried out on the effect of circulation flow ratio to the performance of dehumidifier (regenerator), as well as to the dehumidification capacity and the required cooling load of dehumidification. The numerical simulation results show that while the circulation flow ratio became larger, the inlet solution’s temperature of dehumidifier (regenerator) got higher (lower), cooling load of cooler became smaller, meantime the dehumidification capacity and the required cooling load of dehumidification also became smaller. By controlling the circulation flow ratio, the performance of dehumidification (regeneration) and cooling load can be regulated.