An Investigation for Adsorption Properties of Ethanol – Activated Carbon for Small Size Adsorption Refrigerator with Exhaust Heat from Cogeneration System

Abstract

A simple adsorption refrigerator may improve the total performance of small gas-engine cogeneration system, as exhaust heat can be utilized for cooling during summer. In this research, combination of ethanol and active carbon (Maxsorb) were selected for this operation, and operation characteristics and the optimum porosity of adsorbent bed were studied with numerical analysis. The result shows the porosity range around 0.4-0.5 gives the best performance from the balance between mass and heat transfer in the adsorption-desorption process.