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This is a CO gas expander turbine for cat cracker regenerator flue gas. The turbine drives the air blower for the regenerator, which has a helper steam turbine. The CO gas expander exhaust includes a rupture disc upstream of the first block valve. However, for some undiscovered, undocumented...

poetix99: Thanks for the tip. I believe what you have implied in your first statement is that "full flow" relief is not necessarily equal to or close to the normal operating flow. In my pursuit of the most cost effective solution, I am hoping this means a lower flow rate as the delta P...

grt12 - No, it is not normally open to atmosphere, but a vent stack can be manually opened. This turbine provides low BTU fuel gas to 3 steam boilers and there is a scenario when their inlet butterfly valves can fail closed, while the vent stack is closed. Thanks in advance.

Does anybody know of any methods to reduce the required relief capacity of a relief device on a turbine exhaust to a value much lower than the full flow, to protect the exhaust casing and outlet ducting in the case of a blocked outlet? Alternatively, are there any aspects of this scenario that...

Does anybody know of any methods to reduce the required relief capacity of a relief device on a turbine exhaust to a value much lower than the full flow, to protect the exhaust casing and outlet ducting in the case of a blocked outlet?

Does anybody know of any methods to reduce the required relief capacity of a relief device on a turbine exhaust to a value much lower than the full flow, to protect the exhaust casing and outlet ducting in the case of a blocked outlet?