MAXIMIZING PERFORMANCES OF A SOLAR DOMESTIC HOT WATER SYSTEM THROUGH OPTIMUM POSITION OF THE SOLAR COLLECTOR IN SERBIAN HOUSEHOLDS

Abstract

In Serbia, it is customary to use electrical energy for heating of domestic hot water (DHW). As around 70% of electrical energy is produced by using coal with high greenhouse emission, it is beneficial for the environment to use solar energy for heating DHW in solar DHW system (SDHWS). The paper deals with the design optimization, practical implementation and operation of the solar collectors in space and time, as elements of solar installations which are explored. The main advantages of the installation investigated, are that by optimizing the position of solar collectors in houses we obtain the maximum value of the solar fraction. Solar energy systems have been improved, whereby the maximum value of energy and exergy, reduction of the use of energy resources, maximizing energy security, along with minimum impact on the environment are gained.