Sh H Ergashev¹ ,T A Fayziev¹ , Yu S Tilavov² , B N Sattorov¹ , M M Khidirov¹ and S U Mirzayorova¹

¹ Karshi Engineering Economic Institute, Karshi, 180100, Uzbekistan

² Karshi State University, Karshi, 180100, Uzbekistan

Abstract

The article develops a mathematical model of the heat supply system of the greenhouse complex, taking into account the free heat flow in the animals, solar energy, heat energy stored in heat accumulators and developed through the program MATLAB / Simulink. In the development of a mathematical model of the heat supply system of the greenhouse complex, a block diagram of the equation in the program MATLAB / Simulink was developed, without taking into account the change in air density and specific heat capacity with temperature. According to the graphic results obtained for the daily value of solar radiation 500 W/m2 , outside air temperature, -6⁰С in Karshi, the air temperature inside the greenhouse rises to 22⁰С, water tank battery temperature to 13⁰С, underground heat accumulator temperature to 17⁰С. can be seen. while the amount of total solar radiation was 300 W/m2 , this figure was found to be 14 ⁰С, 9⁰С, and 12⁰С.