Heat exchanger networks design above pinch

Fig. 14 shows the part of the design below the pinch. In this particular case, because the heat exchanger network is simple, there is only one hot stream and one cold stream below the pinch. The match at the pinch shown in Fig. 14 is seen to be feasible with a hot stream CP of 0.4 matched against a cold stream CP of 0.2. By a reasoning analogous to the arguments for the CP inequality above the pinch, it can be concluded that below the pinch, at the pinch, CPh > CPc for a feasible match. 

Step 5 Design the Heat-Exchanger Network. Again, the systems above and below the pinch are considered separately. 

Figure 15.6 Design of Heat-Exchanger Network above the Pinch Zone for Example 15.2...

Design a heat-exchange network above the pinch. 

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