Question

The thermal efficiency of a two stroke petrol engine as compared to that of a four stroke petrol engine for same output, same speed and same compression ratio is?

Answer 1

Moreover, the VOLUMETRIC EFFICIENCY of two stroke engines is much less than that of four stroke engines. Hence, even though the mechanical efficiency of two stroke engines is greater than that of four stroke engines, the efficiency of two stroke engine is less than that of four stroke engine.

Answer 2

Thermal efficiency of a two stroke petrol engine

Explanation:

• 2 stroke engine of same size with 4 stroke engine that produces more amount of power than that of by 4 stroke engine. But in word of thermal efficiency, 2 stroke engine are consider to be less thermal efficient than 4 stroke engine.
• As efficiency goes the 4-stroke certainly wins with this is because of the fact that fuel is consumed daily once every 4 strokes. Four-stroke engines are heavier then they weigh upwards of 50% more than a comparable 2 stroke engine.
• The Thermal Efficiency of two stroke engines is much less, four stroke engines. Therefore, even the mechanical efficiency of two stroke engines is more than that of four stroke engines then the efficiency of two stroke engine is less than the of four stroke engine.