I’m guessing here, but it looks the either a HPRV or a cracked 90 by that vessel. I’m shocked the evacuation fan’s didn’t energize and clear the room. Ammonia fires have to have a the right concentration and some type of ignition. It looks like they didn’t have any leak detection either, that fire should have never happened. I’m sure the were fined heavily for that release and the fire. Hopefully no one was injured
I do not see when electrical system was cut-out or ventilation started. I suspect there was not any gas detection system active in this plant room. Otherwise the electrical system was cut-out and there was not spark to cause fire and explosion.
Was there any ventilation in that room? I can’t imagine that much ammonia in there and no one noticed it even outside the room. I’ve seen and been in some pretty bad leaks, but never that bad. Even with a Scott pack that would have been risky to go into.
It’s not a good feeling, believe me. We had a contractor installing high level cut out alarms on one of our systems and one of them drilled right into a control line on a screw compressor….filled entire engine room with oil and ammonia in a matter of minutes
The extraction fans: On = all good Off= engine room can't be used In Italy the is a law of 1927 to rule the ammonia engine room. Ps the leak was in liquid fase
