Research of heat production methods in cogeneration microgas turbine plants with heat recovery

The subject of consideration in the article is a mathematical model for calculating the main parame-ters of microgas turbine engines with heat regeneration using bypass of both cycle air and the working fluid past the regenerator to control heat generation for cogeneration microgas turbine plants (MGTP). It has been established that the use of bypassing air or working fluid past the regenerator makes it possible to increase the amount of heat generated by cogeneration MGTPs by more than 2.5 times by reducing the efficiency by approximately 1.5 times. This makes it possible to meet the heat needs of local facilities under cyclical or variable heat loads, ensuring the stability of the supply of electricity. It has been shown that bypassing the working fluid past the regenerator is generally more profitable than cyclic air. The proposed model is designed for regenerators with any current circuit and can be used for simplified and preliminary calculations of MGTP.