Abstract

A method is presented for the design of heat exchanger networks which enables a range of operating conditions to be accommodated by the network with high energy recovery. The method, which is based on computer simulation and optimization techniques, is applied to a number of pinched and un-pinched network designs. The importance of correct placement of bypasses in order to ensure good control characteristics and high energy recovery is demonstrated. Finally, an extension to the design method is presented which enables it to include cases in which some of the operational variables are interdependent.

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