Thermodynamic model of a cogeneration unit with an internal combustion engine and a turbo-compressor utilizer

by

A.G. Klimenko, A.V. Dologlonyan

Institute of Natural and Technical Systems,

RF, Sevastopol, Lenin St., 28

DOI: 10.33075/2220-5861-2024-4-159-168

UDC 621.432                                                              

EDN: https://elibrary.ru/zumqbo

Abstract:

The ways of increasing the efficiency of a combined internal combustion engine (ICE) operating on gaseous fuel without interference in its operating cycle (without constructive changes in the ICE itself) have been analyzed. Mathematical models of thermodynamic calculation of the efficient and environmental performance of the internal combustion engine, as well as elements of the turbo-compressor utilizer (TCU), whose input parameters are the output parameters of the combustion engine exhaust gases, are developed. A detailed description of the stages of the refined thermodynamic calculation is given. Verification of the refined calculation of internal combustion engines on specific types of internal combustion engines (a total of 56 engines), mastered by both domestic and foreign manufacturers has shown its suitability for further use in modernization. The method of modernization of internal combustion engine to increase the power of the installation without taking measures to limit the load of the primary combustion engine (without interference in the working cycle) by connecting its gas exhaust system to the turbo-compressor utilizer is proposed. The ways to increase the efficiency of the TCU compressor by minimizing the compression ratio of the booster compressor are briefly analyzed.

Keywords: combined internal combustion engine, gaseous fuel, turbo-compressor utilizer, thermal calculation, efficiency calculation.

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