Numerical investigation and estimation method of leakage behaviour for hydrogen-blended natural gas in overhead pipelines | Science and Technology for Energy Transition (STET)

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Table 5

The results of variance analysis.

	SS_i	df_i	MSS_i	F	P
Hydrogen blending ratio	3.367	2	1.683	6.361	0.027*
Operating pressure	1.814	2	0.907	3.427	0.092
Leakage hole diameter	15.401	2	7.701	29.100	<0.001**
Pipeline diameter	0.085	2	0.043	0.161	0.854
Wall thickness	1.218	2	0.609	2.301	0.171
Error	1.852	7	0.265
Total	23.737	17

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