«Proceedings of Gubkin University»

Experimental confirmation of effectiveness of using absorption refrigeration machines at thermal power plants

UDC: 621.574.013-932.2; 620.9
DOI: 10.33285/2073-9028-2023-4(313)-69-84

Authors:

¹ National University of Oil and Gas “Gubkin University”, Moscow, Russian Federation
² LUKOIL, Moscow, Russian Federation

Keywords: energy efficiency, absorption refrigeration machine, gas turbine plant, compressor station, available power, thermal power plant, integrated air-treating station, planning multifactorial experiment, regression model

Annotation:

The temperature regime of the cycle air of gas turbine units has a significant impact on their output characteristics. In particular, with increasing temperature, there is a sharp decrease in the power and efficiency of the installation, an increase in fuel gas consumption, which is especially important for thermal power plants located in the southern regions of Russia. These use gas turbine units as a drive and have technological limitations on electricity generation during periods of increased ambient air temperatures. The article discusses a method for solving this problem using absorption refrigeration machines on the example of a combined cycle gas plant PGU-110 thermal power plant in Astrakhan (LLC “LUKOIL-Astrakhanenergo”), the results of the computational and theoretical research and predesign study are analyzed, and an experimental test of the effectiveness of the implemented project is carried out based on the theory of planning a multifactor experiment. In accordance with the experimental results, a regression equation is obtained. This accurately describes the change in the available power of the PGU-110 depending on the outside air temperature and the power of the absorption refrigeration machine, a comparative assessment of the results of full-scale and theoretical-calculation studies is carried out, on the basis of which their accuracy and correctness are assessed. The experimental method developed by the authors for testing the effectiveness of projects for the use and selection of absorption refrigeration machines for power plants of thermal power plants and compressor stations can be used for thermal power plants located in areas with high air temperatures and a hot climate.

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