I have a question regarding on-line scrubber installed at exhaust gas outlet (metallic).
When the engine is running since hours, the scrubber is at high temperature (up to 200-300°C).
The design temperature is above so no problem on a mechanical point of view…
But when you start the scrubber (hundreds cubic meters per hour of cold water), do you think you will have issue due to very big temperature drop? we can have cracks or mechanical failure for example at nozzles.
I don’t have any example but if you have I am interested.
To avoid that, we have to start the scrubber then start the engine. If the engine is started, it is too late to start the scrubbers (we don’t want to have this big temperature drop). Do you ave an other idea or experience? Thanks a lot for your feedback.
Have a good day.