what do 4 cycle engines mix with gasoline during combustion

Many people find odor of alcohol offensive.Due to low vapour pressure the air can flow into alcohol storage tank and can form a combustible mixture there.Alcohols produce almost invisible flames while burning, it may cause serious safety problems.Alcohol has poor ignition characteristics.It is difficult to start the engine when the temperature of the engine is below 10 ☌ while using alcohol.Hence, design consideration are there when using it as a fuel. If alcohol as a fuel is used in same amount as gasoline today, then aldehydes emission will be a serious problem. Combustion of alcohols produce aldehydes.That means you need almost double amount of alcohol to travel same distance as on using gasoline. Calorific value of alcohols are almost half to that of gasoline.More moles of exhaust gases produced provide more power to expansion stroke.Alcohol has low sulphur content in fuel.Due to cooler intake, volumetric efficiency of engine running on alcohol is good.It produces less emissions than gasoline (petrol).It has a very high octane number (above 100) and a very good flame speed.It can be obtained from both natural and manufacturing methods.

Have seen movies in which crazy scientist uses alcohol as a fuel to his car.Īlcohols which are most promising as a fuel are Methanol and Ethanol.īut here are some advantages and disadvantages associated with this fuel. Comparison between Gasoline and alcohol as a fuel.Disadvantages of using alcohol as a fuel.

What do 4 cycle engines mix with gasoline during combustion