Simulation and Analysis of Low Pressure Gas Networks with Decentralized Fuel Injection

Steady-state analysis of a natural gas distribution network with hydrogen injection to absorb excess renewable electricity

“…Abeysekera et. all studied a theoretical urban network with low-pressure hydrogen and biomethane (upgraded biogas) injections in the gas grid: a steady-state model was presented using two different approaches: the first imposes the gas volumetric flow rate requested by users, while the second method tracks the users' energy request and increases the flow where is necessary: results show that the injection of alternative gases, such as hydrogen, in the gas network can affects the quality index and the fluid-dynamics of the grid, in particular the gas flow velocity and pressure, but if accurately managed, the hydrogen blending can help to control the power grid and reduce the natural gas importations [27,28].…”

“…The reference gas network was previously studied by Adolfo and Carcasci [28], which carried on a sensitivity analysis of the gas network behaviour while changing the injection point: three clusters of different behaviour were found.…”

Alternative of Biogas Injection into the Danish Gas Grid System—A Study from Demand Perspective

“…The author further suggested WI of biogas is dependent on the feedstock for biogas production. Abeysekera M. et al also developed a model to identify effects of decentralized H 2 fuel injections on low-pressure gas networks, and found that increasing H 2 percentage reduces WI [30]. Hence, the presence of other hydrocarbons has significant impact on WI.…”