An experimental investigation of supercritical CO2 accidental release from a pressurized pipeline

- Dry ice bank is formed near the leakage hole for the nozzle of medium size.
- The Mach number indicates a change from sonic to subsonic leakage of the supercritical CO2.
- The heat transfer at the leakage nozzle is enhanced with increasing leakage nozzle size.
- The “hole model” predicts the mass outflow rate better than the “modified model” for small leakage holes.