What is the maximum thermal efficiency and normal operating efficiency of a diesel generator?
What is the normal working efficiency of a diesel engine?
The efficiency of non-supercharged diesel engines is only about 40%, and the efficiency of supercharged diesel engines is slightly higher, but only 45%. Generally, diesel engines have 30% higher thermal efficiency than gasoline engines.
What are the maximum thermal efficiencies of gasoline engines and diesel engines?
The data I read a long time ago is that the efficiency of gasoline engines is more than 20% to more than 30%, and that of diesel engines is more than 30% to 40%. But I personally think that the efficiency of the latest electronic injection diesel engines is close to 10%. Fifty.
What is the mechanical efficiency of modern gasoline and diesel engines?
The mechanical efficiency of the engine is about 80%-90%, and the mechanical efficiency of the supercharged engine is higher. The thermal efficiency of gasoline engines is about 23%-40%; the thermal efficiency of diesel engines is about 40%-50% (the thermal efficiency of low-speed diesel engines can exceed 50%). If the mechanical efficiency is 0.85, then the effective thermal efficiency of the gasoline engine is about 20%-35%; the effective thermal efficiency of the diesel engine is about 35%-43%.
Which engine has higher thermal efficiency and longer life, a diesel engine or a gas turbine?
The thermal efficiency of diesel engines is higher. The thermal efficiency of low-speed diesel engines under optimal working conditions is close to 45%, while the thermal efficiency of gas turbines is about 35% due to the high exhaust temperature (referring to gas turbines for land and ships). When a steam turbine using gas turbine exhaust works in conjunction with a gas turbine, its thermal efficiency exceeds 40%, but it is bulky.
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