Trond
Petroleum
- Jul 31, 2002
- 33
Hi all,
We are looking at a new offshore oil & gas facility where we want to install a heating medium system. The heat will come from several WHRU on gas turbin outlets. Operating temperature of the system will be around 170°C (340°F), and the proposal is to go for a glycol/water mixture. I have done some work with hot oil systems before, and would have thought that would have been better suited, but naturally I am biased here
I have done some serching on the web, and some sources indicate that 170°C is too high for a glycol/water system. Others claim it is OK.
The way I see it, hot oil is less prone to fouling/degrading, can be operated at lower pressures, is inherently inert and hence less likely to cause corrosion. On the down side, it is flammable and more expensive to purchase than glycol/water. Then again,I would presume a glycol/water system would be more labour intensive in terms of operation?
Would love to have some feedback from my fellow eng-tips members.
We are looking at a new offshore oil & gas facility where we want to install a heating medium system. The heat will come from several WHRU on gas turbin outlets. Operating temperature of the system will be around 170°C (340°F), and the proposal is to go for a glycol/water mixture. I have done some work with hot oil systems before, and would have thought that would have been better suited, but naturally I am biased here
I have done some serching on the web, and some sources indicate that 170°C is too high for a glycol/water system. Others claim it is OK.
The way I see it, hot oil is less prone to fouling/degrading, can be operated at lower pressures, is inherently inert and hence less likely to cause corrosion. On the down side, it is flammable and more expensive to purchase than glycol/water. Then again,I would presume a glycol/water system would be more labour intensive in terms of operation?
Would love to have some feedback from my fellow eng-tips members.