Abstract
The possibility of utilizing converter waste gas from the Novolipetsk Metallurgical Combine (NLMC) PJSC in gas-piston units is considered for the first time. The existing process flow diagram illustrating operation of the gas exhaust duct of the converters is presented, and a version of modernizing the gas exhaust duct for collecting and purifying the gas is described. The operation of the internal combustion engine on natural gas at the nominal load is numerically analyzed. The operation of the engine on converter waste gas is simulated, and comparative characteristics of engine operation with fluctuations of the converter waste gas composition are presented. The simulation results have shown that the composition of gas has a significant effect on the internal combustion engine operation. The main performance indicators are degraded, a circumstance that points to the need of making changes in the engine design. The results from simulating variations in the converter waste gas composition have shown that during steady-state operation, the content of carbon oxide has the strongest effect on the engine power output, and that increasing the fraction of hydrogen in the mixture entails a drop of power output. A conclusion has been drawn about the possibility of utilizing the converter waste gas chemical potential in a gas-piston unit as applied to the NLMC’s converter department.
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