Research Article
Hydraulic Transients Induced by Pigging Operation in Pipeline with a Long Slope
Table 2
Summary of two accidents.
| | The first accident | The second accident |
| Number of compressor | 2 | 1 | Total time of pigging process | 20 Hours | 39.5 Hours | The length of drainage pipe | 150.0 m | 150.0 m | The drainage pipe size | Φ159.0 × 8.7 mm | Φ159.0 × 8.7 mm | The length of rupture | 2.6 m | 2.5 m | Maximum of air pressure | | 1.01 MPa | Bursting pressure of tube | 20.83 MPa | 20.83 MPa |
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