Optimization of the cost of compression in the Finnish natural gas pipeline

A4 Conference proceedings


Internal Authors/Editors


Publication Details

List of Authors: M. Mikolajková, H. Saxén, F. Pettersson
Editors: Krist V. Gernaey, Jakob K. Huusom, Rafiqul Gani
Publisher: Elsevier
Place: Amsterdam
Publication year: 2015
Publisher: Elsevier
Book title: 12th International Symposium on Process Systems Engineering and 25th European Symposium on Computer Aided Process Engineering
Title of series: Computer aided chemical engineering
Volume number: 37, part C
Start page: 2249
End page: 2254
ISBN: 9780444634290
ISSN: 1570-7946


Abstract

The ambient temperature strongly influences the demand of heat and electricity in Finland. In order to study a potential expansion of the gas distribution network and the use of new gas sources, a mathematical model for the pipeline network was formulated. The model considers daily variations in the energy demand at the consumers, the gas flow rates and pressures in the pipes, as well as compressor duties. Using the model, the present natural gas system was simulated for a reference year. This gave a basic understanding about the gas flow rates and pressures in the pipes, as well as compressor duties for every day. The possibilities to extend the pipeline to other cities was also studied, and the implications for additional gas supply, using alternative sources, on the system was analysed, revealing an extra need of compression as well as information about the feasibility of the system at these new states. The pipeline network expansion problem was stated and solved as a nonlinear programming cost minimization problem, yielding information about an optimal operation of the network. Finally, an attempt was made to optimize the integration of a new LNG terminal from which regasified natural could be supplied to the pipeline.


Keywords

compression, cost optimization, mass flow, Natural gas, Nonlinear programming, Pipeline

Last updated on 2019-14-11 at 03:11