Forecasting changes in diesel performance during its conversion to work on the gas and gas-diesel cycle
Abstract
Using the MADI model for calculating the 4-stroke cycle of IC engine, the change in the effective performance of a diesel engine when it is converted into gas diesel engine and gas engines operating on lean and stoichiometric mixtures is analyzed. It is shown that when converting a diesel engine to a gas engine, the parameters of its boost system increase due to a decrease in the compression ratio. The optimal turbocharger was selected for each engine. It was found that in a rated mode, diesel and gas-diesel engines have a close effective efficiency, in a gas engine on a lean mixture it decreases by 9.3%, and in a stoichiometric one - by 13.9%. The cost of diesel fuel and natural gas per unit of heat released was calculated and it was shown that, taking into account the change in effective efficiency in a rated mode, compared to diesel engine, the fuel costs of gas diesel engine are reduced by 2.36 times, of a lean gas engine by 2.33 times, and a gas engine on a stoichiometric mixture - 2.21 times.
About the Authors
Vladimir V. Sinyavsky
MADI
Russian Federation
Russian Federation
Ph.D., associate professor
Igor A. Shirokov
MADI
Russian Federation
Russian Federation
student
Grigory V. Pronchenko
MADI
Russian Federation
Russian Federation
student
Evgeny A. Goldin
MADI
Russian Federation
Russian Federation
student
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Review
Рецензент: А.Л. Яковенко, канд. техн. наук, доц., МАДИ
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