Membrane system design for multicomponent gas mixtures via mixed-integer nonlinear programming

A mixed integer nonlinear programming model for optimizing a gas pipeline transmission linear network

The technical equipment developed and used in both installation and operation processes in refineries, oil and gas pipelines, and gas booster stations has always been expensive. Hence, managers at different organizational levels are keen to find methods to control and reduce these costs. Generally speaking, the operators in a gas booster station choose the operating devices without considering ...

Gearbox Design via Mixed-integer Programming

Gearboxes are mechanical transmission systems that consist of multiple gear wheels and shafts. The transmission ratios of the gears are determined by the size and interconnection of these components. Gearboxes have to adhere to very strict requirements regarding weight, production costs, and available space. Moreover, the load cases as a result of motor-vehiclepairings are often not clear a pri...

Mixed-Integer Nonlinear Programming

Recently, the area of Mixed Integer Nonlinear Programming (MINLP) has experienced tremendous growth and a flourish of research activity. In this article we will give a brief overview of past developments in the MINLP arena and discuss some of the future work that can foster the development of MINLP in general and, in particular, robust solver technology for the practical solution of problems.

Mixed Integer Nonlinear Programming Applications

In this contribution we apply different approaches to solve four rather different MINLP problems: special extensions to time-indexed formulations of production planning problems, a production planning problem in BASF’s petrochemical division, a site analysis of one of BASF’s bigger sites, and a process design problem. The first problem is related to a useful nonlinear extension of production pl...

Deterministic Methods for Mixed Integer Nonlinear Programming