To reduce the hot air circulation, air cooled heat
exchanger devices are ideal. Air cooled heat exchanger fans are also called Fin Fan Heat Exchangers and are mostly
used where the desired outlet temperature is attained by giving the maximum
ambient temperature. This device is essential for reusing heat from a fluid or
gas in a straight line to ambient air. The ongoing cost of the air cooled heat
exchangers is relatively very low. These are very useful in cases where the
requirement of outlet temperature is higher than the surrounding ambient air
temperature.
Air and water are two major sources for cooling both fluids
and gases. As compared to water cooling
equipments, these air cooling equipments are more easy to use since water
cooling equipments have an extra demand of central chillers, piping, pumps and
cooling towers. Also the air cooling devices do not need any water so the
equipments are not required to be built near any water source. The treatment
and disposal of water has become more expensive with stringent environmental
safety guidelines and in such a scenario Air cooled heat exchanger fans are a blessing.
Designing of the Heat
Exchangers:
The air cooled heat exchanger fans are used in multiple
applications such as water and glycol coolers, lube oil coolers, jacket water
cooler, inter/after coolers on compressors, hydraulic oil coolers, belt guard
after-coolers, gas transmitter facility, gas compressor packages, condensing
and cooling of gases, steam condensers, condensers
and closed loop cooling systems.
The heat exchanger cooling fans transfer the heat from one
fluid to another fluid whether the fluid is in contact with each other or
separated by a solid wall. The fans present on these exchangers, transfer the
heat from one fluid to another, which makes these fans an essential part of the
air cooled heat exchangers. According to the specific need of a heat exchanger
the fans should be selected wisely. A wide range of fans are available for
catering to the individual specific needs of these heat exchangers.
The fans can be obtained in various sizes ranging from 2 to
6 ft and it can have blades up to 12. The static pressure of the fan could be
up to 2 Inches of WG with an air flow of up to 3,000,000 CFM. Operating
temperature for these heat exchangers could range from 40ºF to 248ºF. These
heat exchangers offer an advantage of reduced power for same air or more air
with less power. These are the equipments that need a minimal initial cost with
an optimal operational cost all through its usage life. The air cooled heat
exchangers have inbuilt FRP impellar that offers efficient operation to the
device. Heat exchangers are easy to install and offer great benefits.
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