Answer / sheik nasir hussen

Because hp heater is used to increase the FW temp which is supplied to Boiler but attemperation is used to control the o/l steam temp of boiler which is supplied to turbine.

Answer / chinmay kumar patra

To reduce TG HEATRATE and increase efficiency.

Answer / meet vekaria

The outlet temperature of HP heaters should be 240 degrees and that will be inlet temperature of economiser.
the temperature limit of economizer is bounded and so we cant fed feed water more than 240 degrees in economiser.

Answer / instqust

Hi...Generally Spray is used for temperature REGULATION purpose only, either Steam or Water Temperature control applications.

Answer / velmurugan

As we all know that the attemperator main purpose is to reduce the temperature of superheater steam..If we take water after feed pump or LP heater its temperature is slightly lower than the hp heater ,so there is a possibility of superheated steam condense in an attemperator itself by using lp heater or feed pump water..

What happen when the AVR of the generator fails? Will it cause power instability and total failure of the alternator?

8 Answers  

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What is creep, resilience.

2 Answers  

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why expansion bellow is provided in between hopper and vessel in ash handling plant?

2 Answers   Bajaj,

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why high pressure heater will take after sufficient pressure? what happen when high pressure heater will take from COLD REHEAT line at light up time when hp and lp by pass in service.(means can we heater take at low pressure?)

2 Answers  

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What is the formula for find out the height of chimeny of a powerplant?

2 Answers   Rosa Power Supply Company Limited, Sail,

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What is MFT and when it is acted.

2 Answers   HPCL,

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Why reheater is not used after IP turbine.

3 Answers   Hindalco, SEC,

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What is reheater protection based on what mft will be act on RH protection

2 Answers  

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What is excitation current and voltage in hydro power plant ?

1 Answers   ISS, Perfect Line,

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By seeing a Power house Can we justify the kV of that power house?

1 Answers  

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why airtel use + 24 volts and other operators use -48 volt

0 Answers   ABC, Airtel, INDUS, Reliance,

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Why cold water is used for Boiler Hydro test

1 Answers  

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