Performance evaluation of a two - stage adsorption chiller employing re - heat scheme with different mass ratios

Abstract

This thesis deals with the perfonnance investigation of a silica gel! water-base,ltwQstage ad'(}rption chiller empl(}ying re-heat scheme with different mass ratios and compared with that of the l'.vo-stage conventional chiller with re-heat scheme ming equal maSS allocation (npper bed: lower bcd = 1:1). The performance ofa lwo-stage ad,(}rpli(}nchiller using re-hea! scheme wilh different mass allocation between "pper and lower bed, have been investigated numerically. Results show [hat cooling capacily can be improved with the optimum allocat1on of adsorbent maSSto the upper beds than that of lower bcds. The improvcment in Co-efficient of Performance (COP) val"es. however, is less significant. It is also seen that the improvement in cooling capacity lS more significant for the relatively higher heat source temperature. It is shown that lh~ cooling capacity can be improved lip to 8';', if lhe heat source lemperature is 80°C.