https://telegra.ph/Choosing-the-Right-Industrial-Air-Cleaner-08-19
An air cooling system uses a mixture of evaporative cooling and forced air ventilation to remove heat from the engine. The coolant piping is separate from the tower water, and the tower is usually built with an external heat exchanger where evaporation of the tower water transfers heat from the closed coolant loop to ambient air.
The cooling air supply is normally filtered to ensure that the temperature of the cooling air does not exceed the maximum allowed limit for the engine and to remove any corrosive gases (such as carbon dioxide and sulphur dioxide) which may be present in the exhaust from fossil-fuelled power stations. Moisture separators and drains are also commonly installed to remove moisture from the cooling air. The forced air system is normally supplied by an oil-free compressor or blower, and distribution and exhaust pipework and supports are provided as shown in Fig 2.96. Locking double-isolating valves and removable flexible connections are used to ensure that the cooling air system can be fully isolated from the turbine when not in use.
A fan or blower draws cooling air from the surrounding area and pumps it over the heat exchanger to cool the coolant and recirculates it back into the machine. This process is repeated over and over until the cooling fluid reaches a pre-determined temperature. This temperature is typically set to a point well below the normal operating temperature of the engine, so that if any overheating occurs, the thermostat in the engine will actuate and open the air cooler valve to increase the flow of coolant into the cylinders to prevent overheating.
Air-cooled engines are very efficient and work well under a wide range of ambient temperatures, but can fail to cope with a sudden increase in the temperature of the engine, especially if the engine has been running for a long time and is already hot. Air cooling systems are also very unsuitable for use in humid conditions because of the risk of water ingress into the engine.
Water-cooled engines, on the other hand, rely on water pumps and hoses to circulate a mixture of coolant and water around the engine, transferring heat from the engine to the coolant, which is then cooled by the radiator before being returned to the radiator and cycled again. These types of engines can cope with very high overclock speeds, but require regular inspection and maintenance to avoid water pump failures or leaks.
Liquid cooling is generally more complex to install than an air cooler, as a radiator and fans need to be added to the chassis. Many liquid cooling solutions come in All-in-One form, which makes the installation process slightly easier as all of the components (waterblock, radiator, and fans) are contained within the one apparatus. However, this is not an absolute guarantee of ease and can still be difficult to install correctly to achieve maximum performance. Proper cooling of the CPU and GPU is essential to avoid throttling, which can impede productivity for professionals or seriously impact the performance of modern video games.
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