Table 5 Case parameter settings.
From: Research on hydrogen distribution characteristics in town hydrogen-doped methane pipeline
Case | Pipeline operating status | Hydrogen-doping ratio (%) | Flow velocity (m/s) | Pressure (Pa) | Time (s) | |
|---|---|---|---|---|---|---|
1 | Full flow status | 15 | 2.26 | 5000 | – | |
2 | Full flow status | 10 | 2.26 | 5000 | – | |
3 | Full flow status | 20 | 2.26 | 5000 | – | |
4 | Full flow status | 25 | 2.26 | 5000 | – | |
5 | Full flow status | 15 | 1.695 | 5000 | – | |
6 | Full flow status | 15 | 2.825 | 5000 | – | |
7 | Full flow status | 15 | 3.390 | 5000 | – | |
8 | Full flow status | 15 | 2.260 | 3000 | – | |
9 | Full flow status | 15 | 2.260 | 7000 | – | |
10 | Full shutdown status | 15 | – | 5000 | 150 | |
11 | Full shutdown status | 15 | – | 5000 | 300 | |
12 | Full shutdown status | 15 | – | 5000 | 450 | |
13 | Full shutdown status | 15 | – | 5000 | 600 | |
14 | Full shutdown status | 15 | – | 5000 | 750 | |
15 | Full shutdown status | 15 | – | 5000 | 900 | |
16 | Full shutdown status | 10 | - | 5000 | 600 | |
17 | Full shutdown status | 20 | - | 5000 | 600 | |
18 | Full shutdown status | 25 | – | 5000 | 600 | |
19 | Full shutdown status | 15 | – | 5000 | 36,000 | |
20 | First branch shutdown | 15 | 2.260 | 5000 | 300 | |
21 | Second branch shutdown | 15 | 2.260 | 5000 | 300 | |
22 | Third branch shutdown | 15 | 2.260 | 5000 | 300 | |
23 | First and second branch shutdown | 15 | 2.260 | 5000 | 300 | |
24 | First and third branch shutdown | 15 | 2.260 | 5000 | 300 | |
25 | Second and third branch shutdown | 15 | 2.260 | 5000 | 300 | |
