A new approach for the optimal retrofit of heat exchanger networks
Briones, V., Kokossis, A.
Computers and Chemical Engineering, vol.20, no.SUPPL.1
This paper presents a rigorous and systematic optimisation method for the retrofit design of heat exchanger networks. The approach addresses the problem as a multi-task effort and applies a decomposition scheme which makes use of both mathematical programming and pinch analysis methods. The different tasks include targets for structural modifications and heat transfer area changes, the development and optimisation of the retrofitted network and the analysis of its complexity against economic penalties and trade-offs. The decomposition stages embed targeting information which supports screening and facilitates an effective optimisation search. As such, the decomposition not only bypasses the limitations of past decomposition techniques but exploits its features toward the development of an interactive design tool.