Development of the Cooling System of a Single Cylinder Diesel Engine

Although the cooling system of diesel engines has been subjected to many sophisticated improvements, some developed countries still using diesel engines equipped with a basic open cooling system. In these engines the only function of the cooling system is to preserve the engine temperature acceptable for a wide range of operation and operating conditions. In this research, the effect of overcooling on the performance of a water cooled single cylinder diesel engine has been experimentally investigated. The study showed the increase of warm up period, low steady state temperature of both cooling water and lube oil, increase of pollutants concentrations, increase of fuel consumption and increase of blow by gases flow rate. Experimental results showed improvement in fuel consumption, blow-by gases flow rate and reduce time of warm up after the amendment process where the temperature of the cooling water has been raised. The effect on lube oil properties has been recorded.