A multi-function heat pipe type adsorption ice maker

which uses activated carbon-CaCl2 as compound adsorbent and ammonia as refrigerant

was designed.For this test unit

the heating

cooling and heat recovery processes between two adsorbent beds were performed by multi-function heat pipes.The influence of recovery of mass and heat on the performance of adsorption ice maker was investigated.The experimental results showed improved recovery of mass and heat.The coefficient of performance (COP) was increased by 25.5 %

and the power consumption of boiler and the cooling capacity of cooler were reduced by about 13 % and 21 % respectively.When the mass recovery process was implemented before the heat recovery process

the mass recovery process with heating/cooling desorption/adsorption bed increased the rate of ice production obviously

which might help to increase COP and specific cooling power (SCP) by more than 15 % if compared with the conventional mass recovery process.The increase of SCP was higher than that of COP.Under the condition of different temperatures of cooling water

experiments showed that SCP was still high at a higher temperature of cooling water although the performance of adsorption ice maker dropped as temperature of cooling water became higher.At a cooling water temperature of 27℃ and an evaporating temperature of -18.9℃

SCP was still as high as 356.5 W·kg-1.