Effect of Compression Ratio

Effect of Compression Ratio Points : effect of compression ratio, the factors that effect the spark knock, the factors that effect the detonation, problems in internal combustion engines, ic, engine, auto diesel Increase in either of inlet pressure and compression ratio invariable increases the detonation tendency. The choice of compression ratio to be used is influenced not only by consideration of power and fuel economy and the detonation characteristics of the fuel.

For each series of fuels there is a limiting compression ratio known as the highest useful Compression Ratio (H.U.C.R.) above which the engine will not work satisfactorily owing to detonation effects.