Heat storage characteristics of a cylindrical heat storage vessel packed with hollow spheres including phase change material (Experimental study of various parameters affecting heat storage process)

摘要

We investigate the heat storage characteristics of a cylindrical heat storage vessel packed with hollow spheres including paraffin wax as a solid-liquid phase change material. Aqueous ethylene glycol solution as a working fluid is introduced into the cylindrical heat storage vessel at a constant temperature and flow rate during the heat storage process. It is found that an increase in the temperature of the incoming working fluid prolongs the completion time of the heat storage process in the case of working fluid flowing at low velocity.