Abstract
Relevance To cool the gas to the required temperature values in gas production and transportation in Russia, the most widespread has been implemented in the device of air-cooled gas. The installed capacity of electric drives of fans of gas air cooling devices reaches 70 % of the total installed capacity of gas field facilities. Therefore, the issue of increasing the energy efficiency of electrical complex of gas air cooling device by introducing a frequencycontrolled electric drive is relevant. Aim of research To develop a method of frequency control and to investigate the technological features of the operation of gas air cooling devices with a two-stage cooling scheme that ensures minimal electricity consumption. Research methods Mathematical methods of calculation and analysis, Mathcad software package. Results Based on the developed optimization algorithm for selecting the rotational speeds of the motors of the section of the gas air cooling apparatus, it is shown that the most effective increase in thermal efficiency can be used with separate frequency control of the fans of the section of each stage. For separate frequency control, the objective function of optimal control of the frequency-controlled electric drive of the gas air cooling apparatus according to the criterion of minimum power consumption has been developed.
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