Cool Your Engine

An internal combustion engine uses a strong engine block to essentially contain the pressure and control the direction of countless small explosions. Combustion creates torque for the engine, but also a lot of heat. Most of the energy released is heat, and even the best engines do not top 50 percent efficiency. Engines must have cooling systems to dissipate the heat, and a dosing pot is apart of that elaborate pipework. 

Removing Heat From a System

Human beings have a habit of designing functional but inefficient devices. Heat must be removed from most either passively or actively. Passive cooling systems use fins to radiate heat from the surface of contact and are simply exposed to air. A cooling system for a car is active, meaning that a fluid is pumped through the engine block under pressure and then moved through a radiator where the water is cooled due to the movement of the car through air and possibly with the assistance of fans.

Cooling for a car needs to be elaborate because cars can drive at high speeds. Only a complex network of holes in the engine blocks as well as coolant pipes enable the car engine to cool quickly enough to avoid the system cracking or exploding. The best way to see the engine block is as a solid unit that has holes running through the thick metal in order to transfer heat to a mixture of water and antifreeze.

The holes in the engine block might be more sophisticated than the intake and outtake pipe for the radiator. Small cars might only have one pipe that delivers fluid to the entire engine block and one pipe that removes fluid from the engine block. In small or old cars, the circulation occurs without mechanical assistance as hot water tends to rise and forces the whole system to cycle via convection. Larger systems use a pump to make the current run faster.

Common Uses of a Dosing Pot

The importance of dosing mostly occurs in the form of the coolant tank. This contains an extra mixture of water and ethylene glycol. The extra drips into the radiator system whenever it loses fluid due to venting. Extra radiator fluid might also back into the reservoir during periods of high pressure. In any case, this is the prime example of metering fluid to a cooling system. More advanced cars might also meter in anti-corrosive substances. Most antifreeze contains preservatives for the engine.

On the whole, the cooling system for cars is not terribly complex, with most of the technology lying in the radiator as well as the finely bored holes worming through the engine block for the coolant. Large air conditioners for buildings might also use a controlled radiator system, possibly using water as a mist to cool a large network of pipes attempting to remove heat from refrigerant.

More information on dosing pot

Those HVAC Machines

Air conditioners work by compressing refrigerant, dissipating the heat through an external radiator, and then feeding the cooled refrigerant through a second radiator that converts warm indoor air to cool conditioned air. Most HVAC systems either use a water cooling tower or else a fan to speed cooling.