UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS

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2022-07-01 16:57

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Conference: Bucharest University Faculty of Physics 2019 Meeting


Section: Physics and Technology of Renewable and Alternative Energy Sources


Title:
Solar panels system used in the household energetic aims


Authors:
Viorel Vasile IFTIMIE, Sanda VOINEA


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


E-mail
iftimieviorel76@gmail.com


Keywords:
energy conversion, solar panel system, heating plant


Abstract:
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.