Facebook
Google
GitHub
Linkedin
A
We have 4 HRSGs in a 210 MW combined cycle power plant. Due to low load demand in the festival time we kept S/D one of our HRSGs for 4 days.
Our management decided not to preserve that HRSG as it was supposed to return in operation in anytime within 5/6 days.
It is likely that we will bring it in to operation after 2 more days while grid demand increases. The temperatures in different sections of the HRSG are as follows : HP drum/steam side 52 degree C to 84 degree C & pressure 0.5 bar, LP drum/steam side more or less 64 degree C & pressure 0.1 bar. Outside the boiler tubes i.e. flue gas path temperature is 47 degree C to 70 degree C & pressure 5 mbar.
My question is
a) Should we have preserved the HRSG ?
b) How much it might have harmed our HRSG for not preserving for these 5/6 days. Any advise is cordially appreciated.
- Ashraf.
Our management decided not to preserve that HRSG as it was supposed to return in operation in anytime within 5/6 days.
It is likely that we will bring it in to operation after 2 more days while grid demand increases. The temperatures in different sections of the HRSG are as follows : HP drum/steam side 52 degree C to 84 degree C & pressure 0.5 bar, LP drum/steam side more or less 64 degree C & pressure 0.1 bar. Outside the boiler tubes i.e. flue gas path temperature is 47 degree C to 70 degree C & pressure 5 mbar.
My question is
a) Should we have preserved the HRSG ?
b) How much it might have harmed our HRSG for not preserving for these 5/6 days. Any advise is cordially appreciated.
- Ashraf.
