In a Waste heat recovery boiler feed control valve is after the economiser whe

In a Waste heat recovery boiler feed control valve is after
the economiser where as in auxilary boiler feed control
valve is given before the economiser.why?

Question Posted / rudracharan ojha

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In a Waste heat recovery boiler feed control valve is after the economiser where as in auxilary bo..

Answer / devanesan

I am not worked in WHR Boiler eventhough the Control valve
after eco. is safe design because the eco coil always with
fluid. tube starvation will not happen. it may be due to
material of eco. coil.

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In a Waste heat recovery boiler feed control valve is after the economiser where as in auxilary bo..

Answer / magesh

Where have you seen a Feed Control Valve after Economiser in
WHRB?
If it is located after economiser, there is no purpose in a
feed control valve. Usually feed control valves are placed
before economisers in all boilers, so that feed water can be
controlled according to the power requirement. Once it
enters Economisers directly it will go through drum. We
cannot control thereafter. If u still need any explanations,
just mail me mageswaran.c@gmail.com

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