Answer / randhir singh

To control steam temperatur during flue gas temperature variation and rapidly varing load condition.

Answer / kanawar

To control steam temp when flue gas temp is vary.

Answer / keyur donga

when the main steam temprature is goes high At varying load of the HRSG At this this time We maintain the Steam temp by using attempration in HRSG.

Answer / sitaram singh .bonduli

As the steam generated in HRSG shall be routed to the main steam pipeline of steam turbine , it should meet the design criteria (Design temp) hence The attemperation serve the purpose when Rapidly varying load conditions takes place.

Answer / murali

for control steam temp and to avoid secondary super heater coil metal temp high. becoz secondary coil location is near flue gas out from gas turbine. this gas temp around 620 degree Celsius

Answer / santosh dhange

attemparation used to Control the Temperature of Super heater, to work within the design parameter.

Answer / baskaran

During gas turbine load reduce time, HP superheater temperature going to high temperature at that time Attamperator using in between HP superheater 1 &2.

Answer / gaurav kumar

Dear Sir,
Pls Check the Answer in question paper in right answer & wrong ans key send me my mail .

Answer / sunil

In CCPP secondary superheater coils are located near to flue gases and exhaust of gas turbine enters boiler . Exhaust of GT are at high temp around 600C

Answer / jayanta madhab

Attemperation required to protect costly superheater and
evaporator tubes from overheating during flue gas
temperature variation.

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