Engines are dependent on the thermal energy produced during combustion. The engine converts the chemical energy of the fuel into thermal energy by breaking down the molecular bonds of the hydrocarbon molecules. When the fuel/air mixture is ignited by the electrical sparks of the sparkplugs, the oxygen in the air chemically combines with the fuel. Carbon atoms combine with oxygen atoms to form carbon dioxide or carbon monoxide molecules. On the other hand, the hydrogen atoms combine with oxygen molecules to form water vapor or steam. It is the heat produced by the chemical reactions that is regulated by the radiator such as the BMW 525 radiator.
When thermal energy is released as a result of combustion, the gases inside the combustion chambers expand rapidly at almost instantaneous rate. This rapid expansion of gases inside the combustion chambers causes pressure to suddenly rise. This pressure is the force that moves the pistons to move. Collectively, the linear motions of the pistons are translated into rotational motion by the crankshaft. The crankshaft output is then transmitted to the wheels and other moving components of the engine. Thus, the chemical energy of the fuel is finally converted into mechanical energy. However, the heat produced in this process must be regulated by the radiator such as the BMW 525 radiator.
An engine cooling system principally works through the principle of heat transference and heat radiation. The coolant circulates the engine block to take away any excess heat. Then, the coolant flows into the radiator to release or dissipate heat into the surrounding environment. The coolant circulation begins in the coolant reservoir or radiator tank. The coolant is then drawn out by the water pump to be delivered into the engine block. After absorbing heat, the coolant then now proceeds to the radiator. A radiator such as the BMW 525 radiator then dissipates the heat.
