Table 9 Simulation results at different hydrogen-doping ratios (shutdown status).

From: Research on hydrogen distribution characteristics in town hydrogen-doped methane pipeline

Hydrogen-doping ratios

Hydrogen volume fraction (%)

S1.1

S2.1

S3.1

Minimum value

Maximum value

Gradient value

10%

72.44481

77.33951

74.68802

0.03379

80.89529

80.86150

15%

81.08907

84.84687

82.71891

0.07185

88.26281

88.19096

20%

85.17834

87.85433

86.36208

0.07704

90.97193

90.89489

25%

87.16202

89.35244

88.06142

0.10326

92.13586

92.03260