Generally, Basic research papers in Internal Combustion engines have spoken only about varying the Compression ratio of the engine to increase the efficiency of an IC engine. But, they to meet their limitations at a particular point. Is there any other minor or major factors which can be altered to increase the efficiency of an Internal Combustion engine?
Varying the compression ratio is for the basic cycle of the engine. In real condition, many parameters exist for improving efficiency.
read about CA50 and about kinds of efficiency: thermal eff, fuel conv eff and combustion eff
Dear Surya,
Applying simplest four steps IC engine efficiency can be improved.
2. Higher compression ratio(specially for diesel engine-its pumping work is low at high compression ratio)
3. Atkinson cycle put into action. This has a smaller compression ration than expansion ratio.
4. Run the engine at optimum conditions, meaning low friction (modest engine speed) and low pumping work (air throttle more open).
Hope it work out for you.
Ashish
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