Expansion of natural gas networks is a critical process involving substantial capital
expenditures with complex decision-support requirements. Given the nonconvex nature of …

Blending hydrogen into the existing natural gas pipeline network is regarded as the most
potential transportation mode on the utility-scale. However, the impact of hydrogen on the …

A model of a pipeline network for gas distribution is developed considering supply of gas,
either from external gas networks or as injected biogas or gasified liquefied natural gas …

Optimization problems in gas pipeline transportation involve numerous variables, multiple
objectives and many complex linear–nonlinear equality and inequality constraints. The …

Natural gas is currently regarded as a “bridge fuel”, a more environmental-friendly
alternative to fossil fuels such as oil or coal while in the transition towards the near-zero …

Pipelines enable enormous amounts of various products (fluids) to be transported from
supply nodes to demand nodes. They have traditionally been recognized as the most …

This thesis is about mathematical optimization for an efficient operation of gas transmission
networks. The challenging question is how to expand and operate the network in order to …

We consider a nonlinear nonconvex network design problem that arises, for example, in
natural gas or water transmission networks. Given is such a network with active and passive …

Nowadays, transmission system operators of energy networks (TSO) have to enable secure
energy supply even under challenging transport situations and increasing demand. Hence …

We consider a nonlinear nonconvex network flow problem that arises, for example, in
natural gas or water transmission networks. Given is such network with active and passive …