Research Combustion Efficiency of Unprojected Coal

Coal combustion remains an important source of energy despite its environmental disadvantages. This paper investigates the efficiency of combustion of non-project coal of D grade from Karazhyra mine at CHPP-1 of Semey city. The purpose of the study is to optimize the combustion processes to improve the efficiency of boiler E-90-3,9/440. The research method includes experimental-theoretical approach, with an emphasis on drawing up the heat balance and calculating the coefficient of performance (COP) by the inverse balance method.The analysis of the obtained data shows that with increasing the heat output of the boiler there is a parallel growth of fuel consumption and efficiency, indicating an improvement in the efficiency of the boiler unit. It is revealed that when reaching the heat output of 220 GJ/h there is a significant jump in efficiency, indicating the transition of the boiler to a more optimal mode. This result confirms not only the significant potential for improving energy efficiency, but also the stability of fuel costs at changing loads on the boiler unit.Thus, optimization of combustion processes of non-project D grade coal is an important step to reduce negative environmental impact and improve energy efficiency. Further research in this area may lead to even more significant improvements in the operation of boiler units and reduction of harmful emissions.