Header menu link for other important links
X
Simulation and state estimation of transient flow in gas pipeline networks using a transfer function model
Published in ACS Publications
2006
Volume: 45
   
Issue: 11
Pages: 3853 - 3863
Abstract
Dynamic simulation models of gas pipeline networks can be used for on-line applications such as state estimation, leak detection, etc. A prime requirement for such models is computational efficiency. In this paper, a transfer function model of a gas pipeline is used as a basis for developing a dynamic simulator for gas pipeline networks. The simulator is incorporated in a data reconciliation framework, which is ideally suited for on-line state estimation based on all available measurements of pressures and flow rates. The American Gas Association (AGA) model is used for making realistic computations of the gas compressibility. Accuracy and computational efficiency of the proposed method are evaluated by comparing our results with those obtained using a fully nonlinear second-order accurate finite difference method. The ability of the proposed approach for obtaining accurate state estimation from noisy measurements is demonstrated through simulations on an example network. We also demonstrate the use of the proposed approach for estimating an unknown demand at any node by exploiting the redundancy in measurements. © 2006 American Chemical Society.
About the journal
JournalIndustrial and Engineering Chemistry Research
PublisherACS Publications
ISSN08885885
Open AccessNo
Concepts (13)
  •  related image
    Computational complexity
  •  related image
    Computer simulation
  •  related image
    Finite difference method
  •  related image
    Gas dynamics
  •  related image
    Leakage (fluid)
  •  related image
    Mathematical models
  •  related image
    Parameter estimation
  •  related image
    AMERICAN GAS ASSOCIATION (AGA)
  •  related image
    GAS PIPELINE NETWORKS
  •  related image
    Transfer function model
  •  related image
    Transient flow
  •  related image
    GAS PIPING SYSTEMS
  •  related image
    GAS PIPING SYSTEMS