METHODS FOR COMPENSATING THE LOSS OF DIESEL ENGINE POWER WHEN IT IS CONVERTED INTO A GAS ENGINE
Abstract
A change in the performance of a Cummins 6.7 isbe truck diesel engine in case of its conversion into a gas engine running on a stoichiometric or lean gas-air mixture, and the possibility of compensating for power loss compared to the base diesel engine was predicted. Calculations of power and fuel efficiency, as well as indicators of mechanical and thermal stress of three engines in the rated mode were performed using the calculation complex of the four-stroke cycle of diesel/gas diesel/gas engine MADI. It was demonstrated that one can obtain the same power in both gas engines as in the base diesel engine when adjusting the gas fuel rate and boost pressure. Compared to the base diesel engine, the effective efficiency of the lean-burn gas engine decreased by 9.3%, and that of the stoichiometric mixture by 13.9%. The heat stress parameter decreased by 10.5% for the gas engine operating on a lean mixture, and practically did not change for the stoichiometric engine.
About the Authors
Ugor V. Shirokov
MADI
Russian Federation
Russian Federation
student
Vladimir V. Sinyavsky
MADI
Russian Federation
Russian Federation
Ph.D., associate professor
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Review
Рецензент: А.Л. Яковенко, канд. техн. наук, доц., МАДИ
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