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HRSG classification

thread794-455652

HRSG classification

HRSG classification

(OP)
HI EXPERTS
MY QUESTION IS : How Can I classify the HRSG? is this unit is fired or not fired boiler??

Cordially :)

RE: HRSG classification

Dear HOUARI YAHIAOUI,

HRSG normally comes with a GT.
It is normally unfired, as the waste heat of the GT exhaust is utilized to produce steam.
Most HRSGs come with the provision of supplementary firing, which is used to get the desired temperature of the super-heated steam.

Regards.

DHURJATI SEN

https://www.nace.org/people/dhurjatisen

RE: HRSG classification

We never really considered our HRSG a "fired heater", even though we did have duct burners for supplemental heating. They were on most of the time but we could still produce steam without them. That said, it wouldn't hurt to include a HRSG in a fired heater program if your site has one, depending on budget. For us being a refinery, HRSG tubes were the least of our concerns for failure because the consequence of failure was much lower than a fired process heater. I had to do some convincing to get preemptive inspections done on our tubes.

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