PRODUCTION OF COLD HEAT-ENERGY BY ALCOHOL ACTIVATED CARBON ADSORPTIONHEAT-PUMP WITH A DISK-MODULE-TYPE ADSORBER/

For producing of high quality and high power cold heat energy, the alc ohol/activated carbon adsorption heat pump (AHP) with a disk-module-ty pe adsorber, which was composed of super activated carbon (SAC) and ac tived carbon fiber, was proposed. The heat and mass transfer character istics in adsorption and regeneration processes of the AHP operation w ere experimentally investigated. It was found that the adsorption/rege neration cycle period was about 10 times shorter than that of the pack ed-bed-type adsorber of SAC. The equilibrium adsorption capacity per w eight was reduced by SAC modulation, but the cold heat output per unit time of the proposed AHP system was enlarged. The present system work s well with regeneration temperatures of around 350 K and readily gene rates cold heat at around 270 K. It is concluded that AHP fabricated w ith the proposed disk-module adsorber units can be used as a compact r efrigeration unit for generating cold heat energy below 273 K by using a low temperature waste heat energy source.