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Where are Industrial Coolants Used?

Coolant is that type of substance that is used for reducing or regulating the system’s temperature that comes in gas or liquid form. The ideal coolant is something that has low viscosity, low-cost, chemically inert, non toxic, has high thermal capacity and neither promotes nor cause corrosion of cooling system. Some applications need the coolant to be electrical insulator too.

While coolant is typically referred to HVAC and automotive applications, the industrial coolant is much more of a technical as it’s found in heat transfer fluid frequently used for low as well as high temperature for the manufacturing applications. This term covers cutting fluids too. Coolants might be able to stay on its phase, gaseous or liquid or it can even undergo a transition with latent heat that adds to the efficiency of cooling. When the latter is utilized for achieving below ambient temperature, it’s automatically called as refrigerant.

A common type of coolant in the market is air. Air cooling is using either forced circulation using fans or, convective airflow otherwise known as passive cooling. Hydrogen is used too for high performance gaseous coolant. The thermal conductivity is a lot higher compared to all other gases, it has low density and high specific heat density and as a result, low viscosity which is actually a benefit for rotary machines that are vulnerable to windage losses. The hydrogen cooled turbo generators are at the moment most widely used electrical generator in big power plants.

Inert gases are used as coolants for the gas cooled nuclear reactors. Helium has this low tendency to absorb neutrons and become radioactive. Actually, carbon dioxide is also used for mixing it with AGR reactors and Magnox. In regards to sulfur hexafluoride however, this is utilized to insulate and even cool high voltage power systems; to give you examples, it can be switches, transformers, circuit breakers and so on. The steam however could be used where there’s high specific heat capacity that’s required in gaseous form.

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A popular type of coolant used is water. It becomes ideal for heat transfer medium given the fact that it has high heat capacity plus, it is cost effective. Most of the time, technicians are combining it with additives like antifreeze as well as corrosion inhibitors. In most cases, diethylene glycol, propylene glycol or ethylene glycol mixed in water is the components of antifreeze. A similar coolant is betain but with an exception that it’s manufactured using pure plant juice. The pure de-ionized water is utilized to cool electrical equipment because of its low electrical conductivity.

Doing Coolants The Right Way

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