Page 355 - Analysis, Synthesis and Design of Chemical Processes, Third Edition
P. 355
Chapter 15: Pinch Technology
The concepts of pinch technology as applied to the design of new heat and mass exchange networks
are presented. The design of the network requiring the minimum utility consumption and the minimum
number of exchangers is developed for a given minimum temperature or concentration approach. The
temperature- and concentration-interval diagrams, the cascade diagram, and the cumulative enthalpy
and cumulative mass exchange diagrams are presented. The identification of the pinch point and its
role in the design of the exchanger network are discussed. Finally, the estimation of the heat-
exchanger network surface area for a given approach temperature and the effect of operating
pressure and materials of construction on the optimum, minimum temperature approach are
discussed.
