Annual Energy Performance of Solar Thermal Systems in Brasov, Romania

Abstract

In Romania, energy for heating domestic hot water and food preparation represents about 43% of the energy provided in buildings. About 10% of the energy consumption in buildings comes from Renewable Energy Sources (RES). For this reason, energy efficiency in buildings represents a top objective at the national level. This paper presents 3 applications of solar thermal collectors (for heating and domestic hot water) and tries to determine the most efficient method considering the annual solar energy gain. TRNSYS 17 simulation software is used to simulate the building heating load and energy consumption. Real weather data are used for simulation.