采用回质回热的活性炭-氨吸附制冷循环性能

EFFECTS OF MASS AND HEAT RECOVERY ON PERFORMANCES OF ACTIVATED CARBON/AMMONIA ADSORPTION REFRIGERATION CYCLES

回质是改善吸附循环性能的重要手段 ,回质过程大幅度提高了每循环单位质量吸附剂的制冷量 ;根据工况的不同 ,回质过程有可能在一定范围内提高或降低系统的性能系数 ;回质过程对循环的作用对金属及流体热容变化不敏感 ;

Mass recovery in activated carbon/ammonia adsorption cycle can play an important role to better the performance of refrigeration cycle. Coefficient of performance might increase or decrease with mass recovery process due to different working conditions. Cooling capacity per kg of adsorbent can be significantly increased with mass recovery process. The effects of mass recovery do not vary much due to different operating conditions. The effect of mass recovery on cooling capacity does not vary with heat capacity of thermal fluid and bed metal. The higher the condensing temperature is, the more the cooling capacity of mass recovery cycle will be improved. The cycle with mass and heat recovery has a relatively higher COP. It can also be seen that the cycle time will be much shorter and it will certainly enhance the cycle with higher cooling/heating power.