Natural gas distribution network modelling and leak minimization

A gas network model has been constructed based on the steady-state Weymouth equation. A fast and robust solution algorithm is proposed and subsequently used to calculate all flows and pressures in a gas network with over 40,000 pipes. The obtained result is mathematically accurate within 0.1% and has been obtained within 0.2 seconds. Using basic physical principles, a simple gas consumption model has been constructed to feed the gas network model with necessary input data. A method has been developed for minimizing leaks in gas distribution networks by changing the network operating pressure. This strategy has the potential to reduce gas leakage with over 40% as concluded from two case studies.