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Low Order Pre-compensator Design Using Linear Matrix Inequalities
, M.Sc. Thesis Sharif University of Technology ; Nobakhti, Amin (Supervisor) ; Thornhill, Nina (Co-Advisor)
Abstract
One of the most common problems encountered in multivariable systems is the interactions between the system inputs and outputs. Interaction causes difficulties in control of these systems. Hence reduction of interaction in multivariable systems is an important design objective. One way to do this is to employ a pre-compensator in the open loop systems. Several approaches with different design methods and optimization criterions have been proposed thus far. In this study the problem of interaction reduction for a square stable system is considered and a pre-compensator matrix is designed which reduces interactions in the interacting multivariable system.In this case the purpose is to use...
Energy induced separation network synthesis of an olefin compression section: A case study
, Article Industrial and Engineering Chemistry Research ; Volume 50, Issue 3 , December , 2011 , Pages 1610-1623 ; 08885885 (ISSN) ; Rashtchian, D ; Pishvaie, M. R ; Thornhill, N. F ; Sharif University of Technology
2011
Abstract
When latent heat is transferred in a heat exchanger network, the formation of the second phase creates an opportunity for separation. This network is known as a Heat Induced Separation Network (HISEN). HISENs have been extended to include pressure adjusting devices for improving the thermodynamic feasibility of the network. This extended network is termed an Energy Induced Separation Network (EISEN). Most examples of EISENs in the literature are environmental pollution treatment case studies which do not require liquid phase mass integration or shaft power integration. They assume a predetermined extent of separation and mostly are based on conceptual methods of design. This paper explains...