Why attempration spray is used after hp heater?
Answers were Sorted based on User's Feedback
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.
Is This Answer Correct ? | 8 Yes | 1 No |
Answer / chinmay kumar patra
To reduce TG HEATRATE and increase efficiency.
Is This Answer Correct ? | 5 Yes | 2 No |
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.
Is This Answer Correct ? | 4 Yes | 1 No |
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..
Is This Answer Correct ? | 0 Yes | 0 No |
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