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John O | June 2017

Article explores recent industry developments in heat exchangers


an article from advanced thermal solutions, inc. (ats), which will also be published in coolingzone media sponsor qpedia thermal emagazine, explored recent developments in heat exchanger technology, particularly heat exchangers used in electronics cooling.

 



this article explores the developments in heat exchanger technology.
(advanced thermal solutions, inc.)

 

the article featured developments in air-to-air heat exchangers as well as liquid-to-air and the increasingly common use of engineered fluids in liquid cooling systems that incorporate heat exchangers.

 

“air-to-air heat exchangers provide moderate to good cooling performance,” the article explained. “they don’t allow outside air to enter or mix with the air inside the enclosure. this protects the enclosure’s contents from possible contamination by dirt or dust, which could damage sensitive electronics and electrical devices and cause malfunctions.”

 

it added, “in some electronic cabinets, high power components can’t be cooled by circulating air alone or the external ambient air temperature is not cool enough to allow an air-to-air heat exchanger to solve the problem unaided. in these applications, liquid-to-air heat exchangers provide additional cooling to maintain proper cabinet temperatures.”

 

engineered fluids, also called nanofluids, have become the subject of numerous studies in recent years and have been used by many places to enhance the thermal conductivity of a liquid cooling system without having to increase its size or pumping power.

 

the article explained, “from various research, it has been found that adding even very small amounts of nanoparticles to the base fluid can significantly enhance thermal conductivity.”

 

it concluded, “a recent paper by fredric et al. proposes a theoretical heat exchanger with curved tubes and with nanofluids as the coolant. nanofluids in place of regular water provide improved thermal conductivity due to the increased surface area. the heat transfer rate is further improved using curved tubes in place of straight tubes because the used of curved tubes increases the turbulence and fluid velocity, which helps increase the heat transfer rate.”

 

read the full article at https://www.qats.com/cms/2017/05/25/industry-developments-heat-exchangers-for-electronics-cooling.

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