ABSTRACT
To improve the cooling capacity of adsorption chillers, the authors have proposed the dual evaporator three bed adsorption chiller. The novel adsorption chiller is equipped with three adsorbers, two evaporators and a condenser. The adsorption process is separated into two stages, which are carried out at a higher pressure level and at a lower pressure level, so that the adsorption concentration can be enhanced under a given condition of the cooling water temperature.
The study investigated the application of the mass and heat recovery processes to the dual evaporator three bed adsorption chiller for further improvement of the cooling performance. The mathematical model of the chiller is developed and the performance indices such as the coefficient of performance (COP) and the specific cooling capacity (SCC) are predicted. The effects of the mass and heat recovery processes on the COP and SCC are investigated by parametric analyses. The results reveal the application of the mass recovery is the most effective in terms of the enhancement of the SCC.
Keywords: Adsorption chiller, Heat recovery, Mass recovery, Simulation, Specific cooling capacity.
