The obvious advantage of Air cooled fluid cooler is that it does not require any water after its first charge. This is completely a closed circuit system. The hot fluid (water) from the source is made to pass through finned surface heat transfer coils & using the heat is rejected to ambient air passing through coils using axial fans.
GT RADIATORS COOLING COILS (12 NOS. X 10 MTRS LONG )
SUPPLIED TO NTPC, DADRI GAS BASED POWER PLANT
Air-cooled Fluid Cooler is High Efficiency dry cooling system. Air cooled fluid coolers works on principle of rejecting heat from hot fluid to ambient-air directly through heat transfer coils. This is in contrast to conventional method of cooling using shell & tube heat exchanger & wet cooling tower system.
Motors are totally enclosed fan cooled type (TEFC), to protection against dust/moisture with class F installation and 415 ± 10V / 3ph / 50 HZ.of reputed make.
Headers : Header are made of heavy duty steel / copper pipe and are complete with mating flanges & air purging valves.
The Shell and Tube Type Heat Exchangers are the most common type of heat exchanger used in the process, petroleum, chemical and HVAC industries, it contains a number of parallel tubes inside a shell. Shell & Tube type heat exchangers are used when a process requires large amounts of fluid to be heated or cooled. Due to their design, shell tube heat exchangers offer a large heat transfer area and provide high heat transfer efficiency.
There are many different types or designs of shell and tube heat exchangers to meet various process requirements. Shell and Tube heat exchangers can provide steady heat transfer by utilizing multiple passes of one or both fluids. SEC shell and tube heat exchangers come in two (2) and four (4) pass models standard, and multi-pass custom models.
Fin Tube Coils :
12 nos. 1000 mm w x 10000 mm long supplied to NTPC.