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Piping & plant systems
Fifteen minutes to empty the station
Emergency blowdown of a compressor station · narrated
- Duration
- 1:53
- Year
- 2026
The case
An emergency shutdown isolates a compressor station holding 13.7 t of gas at 69 barg and opens two blowdown valves, each behind a 52 mm orifice. The target, 6.9 barg in about 15 minutes, is met with little margin: 6.77 barg. The gas left inside only cools to 1 °C because 205 t of pipe steel feed it heat; the real cold is downstream of the orifice: −19 °C in the gas and −10 °C at the vent pipe wall.
Topics
- Blowdown
- Process safety
- Narrated explainer
Basis. Generic synthetic case built for this piece. No client data. Not a design verification.
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