Mahmood Majidi - Department of energy engineering, Faculty of natural resources and environment, Science and research branch, Islamic Azad University, Tehran, Iran
Ali Gheibi - Department of the mechanical engineering, University of Kashan, Kashan, Iran

In the present work a panel radiator is investigated experimentally andthe rate of the heat output is obtained. All the experimental tests are doneaccording to the European standard No. EN-442. The main aim of thisproject is to obtain a characteristic equation for heat output rate based onthe excess water temperature. This equation shows the relation betweenthe heat output rate and inlet water temperature.

Panel radiator, Experimental investigation, Heat output rate, Characteristic equation