Induced Draft Counter
Flow In a counter flow cooling
tower the air moves vertically upwards through the
fill while waterfalls vertically downwards. Film type fill is used
and is suitable for all cooling load applications, however, it is
more suitable for the application where cold water temperature is
critical and water quality is good. The structure of the cooling
towers is made of Treated Timber. Film type fill is made of PVC for
normal water applications. These cooling towers are fitted with the
fills of wider flute so that it can withstand most of the
industrial water. The film type fill should be avoided for the
applications where water has traces of oil and contaminated water.
In the case of contaminated water PVC 'V' bars and grid can be
used. Cooling towers are fitted with high efficiency mechanicals
such as axial flow fans, gear boxes and drive
shafts. Induced Draft Cross
Flow In a cross-flow cooling
tower air moves through the fill horizontally and
waterfalls vertically. The fill used is splash type fill and is
suitable for cooling all load applications; however, it is more
suitable for the application where water has higher suspended
solids which can be a problem for film fill cooling tower
operation. These cooling towers are made of RCC. For high
temperature applications the splash fill is made of chemically
treated timber whereas for normal temperature applications it
isÂ
