To integrate measurements of eco-efficiency with control loop configuration has become an important topic since all industrial processes/plants are requested to increase their eco-efficiency. The exergy eco-efficiency factor, a new measure of eco-efficiency for control loop configuration, has been developed recently [1]. The exergy eco-efficiency factor is based on the thermodynamic concept of exergy, which can be used to analyze a process in terms of its efficiency. The combination of the relative gain array (RGA), NI, CN, dynamic RGA, and the exergy eco-efficiency factor will help guide the process designer to find the optimal control design with low operating cost/eco-efficiency. In this paper, we validate the proposed exergy eco-efficiency factor for processes with recycles which are very common industrially.
Luyben WL, Tyreus BD, Luyben ML, Plantwide process control, New York: McGraw-Hill, 1998
Munir MT, Yu W, Young BR, Determination of Plant-wide Control Loop Configuration and Eco-Efficiency, Rangaiah GP, Kariwala V (Eds.), in Plantwide Control: Recent Developments and Applications, John Wiley & Sons, ISBN:9780470980149, 2012
Montelongo-Luna JM, Svrcek WY, Young BR, The Relative Exergy Array - A tool for integrated process design and control in Chemeca 20092009: Perth, Australia.
Montelongo-Luna JM, Svrcek WY, Young BR, The Canadian J. Chem. Eng., 89(3), 545, 2010
Munir MT, Yu W, Young BR, Control loop configuration and eco-efficiency, in FOCAPO/CPC-VIII2012: Savannah, Georgia, USA.
Munir MT, Chen JJ, Young BR, A computer program to calculate the stream exergy using the visual basic graphical interface, in Chemeca2010: Adelaide, Australia.