Another interesting use of TCOIL dimple jacket exchangers, of which we often talk about for immersion cooling applications, is using them for contact cooling applications, as if they were a jacket. A very interesting characteristic of TCOIL exchangers is in fact the capacity to be shaped to fit the shape of the equipment to be thermoregulated.
It is then possible to use TCOIL dimple jacket exchangers for application on the outside of equipments employed in the chemical industry, such as mixers and reactors, or generally on the outside of tanks or furthermore on the outside of electric batteries. The metal sheets of the plates of a TCOIL exchanger are in fact easily made into a cylindrical shape, to fit the shape of cylindrical objects to be cooled or heated. Otherwise, it is also possible to use flat plates to cover the external surface of a machinery.
In order to increase the thermal transfer efficiency of a TCOIL exchanger in contact cooling applications, it is therefore necessary to have a flat sheet on the side at direct contact with the equipment. This is achieved using metal sheets having different thickness. When inflating the plates of the TCOIL exchanger, only the external sheet with lower thickness will blow up, taking the typical dimpled look of a TCOIL exchanger, while the internal side with greater thickness, aimed for direct contact with the object to be cooled or heated, will remain flat.
A further trick to increase even more the thermal transfer rate in TCOIL exchangers contact cooling applications is to rub a thermal conductive paste on the flat side aimed for direct contact with the outside of the equipment to be thermoregulated.
This kind of contact cooling application of TCOIL dimple jacket exchangers is triggering a high interest for employ in electric battery cooling, as well as for cooling of electrical and electronics machinery that clearly cannot be cooled using a direct flow of cold water.
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