Теплова ефективність гібридного фотоелектричного геліоколектора для енергоефективних систем енергопостачання

In the article, topical issue of increasing efficiency of solar energy production thanks to the proposed design of the hybrid thermal photovoltaic solar collector (HTPSC) and converting it into electrical and thermal energy are considered. It is shown that the proposed design provides stable and efficient energy supply even in low light conditions. Integration of this system into the energy system increases energy independence, reduces heating costs and reduces CO2 emissions. Indeed, today it is important to fulfill international commitments to combat climate change on our planet. In accordance with provisions of the Paris Agreement, each country sets national goals to reduce greenhouse gas emissions that increase the environemnt temperature. This can be achieved by using energy from renewable energy sources instead of fossil fuels and increasing energy efficiency. In addition, according to the UN Sustainable Development Goals, renewable energy should be efficient, cheap and accessible to everyone. That is why creation of improved hybrid solar collectors is an important step in the solar energy development. Integration of advanced technologies into these systems allows increasing productivity, reducing operating costs, ensuring reliability and making renewable energy more accessible and efficient for widespread use. The aim of the paper is to study and assess effectiveness of the proposed design of the HTPSC for maximum use of solar radiation. The main focus is on increasing thermal efficiency due to the use of solar concentrators and improving electrical efficiency due to intensified heat removal from photovoltaic cells. The compact and inexpensive design of the HTPSC using inexpensive materials and high thermal efficiency allows to successfully solve existing climate problems. Operation of the hybrid-power-supply-system using a hybrid thermal photovoltaic solar collector is analyzed by simulating the thermal state of the HTPSC under influence of constant solar radiation to establish a quasi-stationary thermal regime of the system. It was revealed that the developed design of the HTPSC with solar radiation concentrators, regardless of the specific mass of the coolant in the solar system circuit, demonstrates decent electrical efficiency equal to 0.08  0.09, not strongly dependent on factors considered in this article, and high thermal efficiency of   with decrease in the intensity of solar radiation in its plane to 300 W/m2 or the angle of inclination of the HTPSC to the horizon beta to 30 degrees, characterizing its effective operation in conditions of insufficient illumination, including regions with high latitudes.