The water again circulated through the engine jackets. After passing through the radiator, the water is drained and delivered to the water pump through a cylinder inlet passage. Usually, the fan and water pump are mounted and driven on a common shaft. In the radiator, the water is cooled by air drawn through the radiator by a fan. The water is passing through the radiator. After passing through the engine jackets in the block and cylinder heads. The water is kept continuously in motion by a centrifugal water pump which is driven by a V-belt from the pulley on the engine crankshaft.
In this system, the water is circulated through water jackets around each of the combustion chambers, cylinder, valve seats, and valve stems. The water cooling system is used in the engines of cars, buses, trucks, etc. It is used in aeroplanes and motorcycle engines where the engines are exposed to air directly.This system can be used in cold climates, where if water is used it may freeze.Coolant and antifreeze solutions are not required.In case of water cooling system there are leakages, but in this case, there are no leakages.The air cooled system has no radiator or pump so the system is light.Advantages of Air Cooled Systemįollowing are the advantages of the air-cooled system: In bigger units, fans are providing to circulate the air around the cylinder walls and cylinder head. In order to increase, the rate of cooling, the outer surface area of the cylinder and cylinder head is increased by providing radiating sins and flanges. The heat is dissipated directly to the atmospheric air by conduction through the cylinder walls. In countries with cold climates, this system is also used in car engines. The air system is used in the engines of motorcycles, scooters, airplanes, and other stationary installations. Water cooling system Air cooling systemĪn air-cooled system is generally used in small engines say up to 15-20 kW.Types of Cooling System In Engineįollowing are the two types of cooling systems for engines: Therefore the method of removing away the excess heat from the engine cylinder is called a cooling system. Keeping the above facts in view, it is observed that suitable means must be provided to dissipate that excess heat from the cylinder walls so as to maintain the temperature below certain limits. It is seen that the quantity of heat given to the cylinder walls is considerable and if this heat is not removed from the cylinders, it would result in the seizing of the piston, high fuel consumption, pre-ignition, and burning of lubricant, etc. The remaining 30% is useless to waste heat.
Only about 30% of the heat is converted into mechanical work. All the heat produced by the combustion of fuel in the engine cylinders is not converted into useful power at the crankshaft. The following two systems are used for cooling the I.C engines these days: The Necessity of Cooling System In EngineĪll the I.C engines require a cooling system because the combustion of fuel takes place inside the engine itself. In this article, we discuss the types of cooling systems In the Engine.