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Efficient Modelling and Real-Time Optimisation of Stationary Systems: Application to an Evaporation Process

Authors:
Carlos Gómez Palacín
José Luis Pitarch
César De Prada

Keywords: Stationary model; EcosimPro; CppAD; RTO; NLP; Automatic differentiation; Resource efficiency

Abstract:
Process optimisation usually leads to a nonconvex mathematical problem, which can be solved in an iterative way by using relevant information about the gradients of the objective function and constraints. In this way, the use of automatic-differentiation tools (AD) is recommended to efficiently obtain such information from a system modelled in steady state. This paper deals with the integration problem between some existent powerful modelling & simulation software and tools for numerical optimal control. The approach here is programming a communication interface between EcosimPro (modelling), CppAD (AD for C++ code) and IPOPT (Interior-Point Optimiser). The effectiveness of the proposed combined tool has been tested in an industrial evaporation process.

Pages: 6 to 11

Copyright: Copyright (c) IARIA, 2015

Publication date: November 15, 2015

Published in: conference

ISSN: 2308-4537

ISBN: 978-1-61208-442-8

Location: Barcelona, Spain

Dates: from November 15, 2015 to November 20, 2015