2022-07-01 16:57


Conference: Bucharest University Faculty of Physics 2019 Meeting

Section: Physics and Technology of Renewable and Alternative Energy Sources

Solar panels system used in the household energetic aims

Viorel Vasile IFTIMIE, Sanda VOINEA

University of Bucharest, Faculty of Physics, PO Box MG 38, 077125, Bucharest-Magurele, Romania


energy conversion, solar panel system, heating plant

Within the current economic and social context where natural resources used to obtain electricity are limited and costly, the identification and development of alternative variants for obtaining electricity becomes a priority. Solar energy is one of the renewable energy sources, clean, inexhaustible, environmentally friendly and the use of this type of energy to obtain domestic hot water is a viable solution. The present paper represents a study of solar energy conversion using a solar panel system to obtaining domestic hot water. In this work, it has been used a system consisting of 2 solar panels fitted with 20 vacuum tubes HEAT PIPE of 1800 mm x 58 mm, with efficiency of 82-85%, a controller fitted with a pumping group and a multi-functional boiler with a volume of 300 l thermal agent. The boiler works on the Ruffer principle, using three independent sources of heat (solar energy, solid fuel burning in the boiler furnace, thermal power plant-with connection to the boiler) and the domestic hot water is prepared on the instant fresh water principle. Solar panels were placed on the roof of a house, in the area of Izvoare village, Neamţ County.The monitoring of the system was carried out for 3 months. During winter, we obtained for domestic water a temperature of 160-190 Celsius degrees and for 3 months during spring we obtained a temperature of 200-300 Celsius degrees. The domestic hot water was used in the household but also as a support for heating the dwelling, ensuring a temperature between 160-300 Celsius degrees in the boiler of the heating plant.