Hi JC
I would imagine back pressure is the most likely reason, though I would have thought the waste heat recovery designer would have minimised this as far as possible based on exhaust mass flow rates.
Also is it possible a damper is not functioning correctly?
Cheers
John
Hi Lewis
I realise that you posted this a couple of months ago, however I was researching the older gas turbines and came across this thread. Not sure of this helps, but I gather Greenray support these machines, they may have a manual.
Cheers
John