Open Access

Table 4

Volume flow rate and its deviation of a long-distance pipeline at different hydrogen blending ratios when the pressures at the start and the end of the pipeline are fixed.

H2 (%) 8.4 °C (winter)
15 °C (average)
25.2 °C (summer)
Q (107 Nm3/d) ε (%) Q (107 Nm3/d) ε (%) Q (107 Nm3/d) ε (%)
0 3.86 0.00 3.838 0.00 3.808 0.00
5 3.91 1.28 3.888 1.29 3.858 1.32
10 3.96 2.76 3.945 2.79 3.916 2.84
15 4.03 4.46 4.011 4.51 3.983 4.58
20 4.10 6.39 4.086 6.45 4.058 6.55
30 4.28 11.03 4.265 11.13 4.238 11.27

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