Heat exchanger network self-optimising control: Application to the crude unit at Mongstad refinery
Master thesis
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http://hdl.handle.net/11250/248387Utgivelsesdato
2012Metadata
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Sammendrag
This work applies the concept of self-optimising control for the operation of the given network. The steady-state performances of the self-optimising variables derived by Jäschke (Jäschke, 2012) are assessed and two main control configurations are examined: a simple decentralised control configuration (PIDs Control) and an advanced multivariable control configuration (Model Predictive Control). The steady-state performances appears to be moderate but need to be re-assessed using a proper steady-state model. The decentralised control configuration is found to present acceptable dynamic performances while the advanced multivariable configuration only enhances them a bit.