FEATURES OF GASDYNAMIC CALCULATION INTERNAL GAS NETWORKS WHEN APPLYING GAS-HYDROGEN MIXTURES

The peculiarities of gas-dynamic calculations of internal gas networks when using gas-hydrogen mixtures with a volume fraction of up to 20 % of hydrogen instead of natural gas have been established. Analytical dependences are obtained, which make it possible to estimate the increase in friction pressure losses and hydrostatic pressure in internal gas pipelines at increased costs, which compensate for the decrease in the heat of combustion of the hydrogen-gas mixture.