Journal of Control Engineering and Applied Informatics
On Modelling and Simulating Natural Gas Transmission Systems (Part I)
Abstract
Natural gas transmission systems stand for mathematical modelled complex systems as
systems with distributed parameters having the form of differential equations with partial
derivatives. In view of studying some practical situations, such as the process of flow along a
natural gas pipeline, a simplified mathematical model may be used. Practical operation with this
model demands a spatial and temporal discretization of functions of interest (pressure and
weight / rate). The paper develops one such model and analyses the necessary discretization
processes needed for numeric integration. Using an implicitly numeric integration method more
case studies suitable to some flow processes through pipelines in distinct situations are developed.
As the results obtained by computation are very close to the experimental ones, the case studies
acknowledge both the validity of the developed simplified model and those of the calculation
procedures used.
systems with distributed parameters having the form of differential equations with partial
derivatives. In view of studying some practical situations, such as the process of flow along a
natural gas pipeline, a simplified mathematical model may be used. Practical operation with this
model demands a spatial and temporal discretization of functions of interest (pressure and
weight / rate). The paper develops one such model and analyses the necessary discretization
processes needed for numeric integration. Using an implicitly numeric integration method more
case studies suitable to some flow processes through pipelines in distinct situations are developed.
As the results obtained by computation are very close to the experimental ones, the case studies
acknowledge both the validity of the developed simplified model and those of the calculation
procedures used.