Abstract: | The possibility of producing cold heat energy by a super active carbon/ethanol adsorption heat pump (AHP) with a packed bed type adsorber is discussed on the basis of both experimental and calculated results of the transient behavior accompanied by this operation. The trend in experimental results for heat and mass transfer agrees well with computer simulation for closed-system, one-component, non-isothermal conditions in both the adsorption and desorption processes. The super active carbon/ethanol AHP proposed generates a high level of cold heat energy by raising the desorption temperature. Therefore, this AHP is applicable to a refrigerator. However, it is suggested that enhancement of heat transfer in the adsorber is indispensable to obtain a high power from this type of AHP. © 1997 Scripta Technica, Inc. Heat Trans Jpn Res, 25(7): 466–475, 1996 |