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Heterogeneous Dynamic Process Flowsheet Simulation of Chemical Plants

In: Mathematics — Key Technology for the Future

Author

Listed:
  • Friedrich Grund

    (Weierstrass Institute for Applied Analysis and Stochastics)

  • Klaus Ehrhardt

    (Weierstrass Institute for Applied Analysis and Stochastics)

  • Jürgen Borchardt

    (Weierstrass Institute for Applied Analysis and Stochastics)

  • Dietmar Horn

    (Weierstrass Institute for Applied Analysis and Stochastics)

Abstract

For large-scale dynamic simulation problems in chemical process engineering, a heterogeneous simulation concept is described which allows to distribute the solution of the models of coupled dynamic subprocesses to a computer network. The main principle of such a technique is to solve the submodels of an overall model independently of each other on subsequent time intervals. This is done by estimating the vector of input variables of the submodels, calculating the corresponding time behaviour of the output variables concurrently, and matching the time profiles of the interconnecting variables of the process flowsheet iteratively. Therefore, accelerated waveform iteration methods are considered, using Broyden- and block-Broyden- type updates. The simulation concept is investigated especially in the case that the submodels do not provide input-output sensitivities.

Suggested Citation

  • Friedrich Grund & Klaus Ehrhardt & Jürgen Borchardt & Dietmar Horn, 2003. "Heterogeneous Dynamic Process Flowsheet Simulation of Chemical Plants," Springer Books, in: Willi Jäger & Hans-Joachim Krebs (ed.), Mathematics — Key Technology for the Future, pages 184-193, Springer.
    • Handle: RePEc:spr:sprchp:978-3-642-55753-8_15
    DOI: 10.1007/978-3-642-55753-8_15
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