To investigate the heat and mass transfer effects on the regeneration process using condensation heat

experiments were performed in a hybrid air-conditioning system using low-concentration LiCl solution as the liquid desiccant. The regeneration rate and utilization ratio of condensation heat were regarded as evaluation criteria of regeneration performance. The effects of the important operating parameters on the system performance were analyzed experimentally. The results show that the air and solution mass flow rate and inlet temperature have a positive impact on the performance of regeneration. Under typical summer conditions

as the solution concentration increases from 21.20% to 24.91%

the utilization rate of condensation heat fluctuates between 0.416 and 0.507; the utilization rate of condensation heat would increase if the solution concentration was reduced. Finally

empirical correlations coupling the heat and mass transfer coefficients are presented. The experimental results provide reliable data for further analysis of using condensation heat efficiently for the solution regeneration process.