Due to strict regulatory rules in combination with complex nonlinear physics, major gas network operators in Germany and Europe face hard planning problems that call for optimization. In part 1 of this paper we have developed a suitable model hierarchy for that purpose. Here we consider the more practical aspects of modeling. We validate individual model components against a trusted simulation tool, give a structural overview of the model hierarchy, and use its large variety of approximations to devise robust and efficient solution techniques. An extensive computational study demonstrates the suitability of our models and techniques for application in gas network planning.
Technical Report, (a) Department Mathematik, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstr. 11, 91058 Erlangen, Germany; (b) Energie Campus Nürnberg, Fürther Str. 250, 90429 Nürnberg, Germany; (c) Leibniz Universität Hannover, Institute for Applied Mathematics, Welfengarten 1, 30167 Hannover, Germany