After completing the experiment on SI engine, experimental evidences concluded that break power and specific fuel consumption are found optimum at higher compression ratio.
Apart from that distribution of chemical energy of fuel into break power, cooling water and exhaust gas is also analysed at different compression ratio and different load. In this context various parameters of petrol engine such as brake power, specific fuel consumption, break thermal efficiency and volumetric efficiency are analysed by varying compression ratio from 2.5:1 to 10:1 while the applied load is varied from 0.8 to 4.8 kg. All the automobiles run at a particular compression ratio while develop the power so it necessary to analyse the performance parameters of spark ignition engine at different compression ratio while using petrol as fuel. Researchers are focused on various techniques based on energy optimization.
In the world of automobile engineering energy is a most challenging issue.
