Counter current heal exchanger

Let s next determine the counter current heal exchanger area. The exchanger inlet and outlet temperatures are shown in Figure E8-7.2. The rate of heat transfer in a counter current heal exchanger is given by the equation ... 

It is proposed to add a counter current heal exchanger with Ua = lOOkJ/min/K where T, is virtually constant at 1000 K. For an entering... 

Case 2 Constant heat exchange fluid temperature 7], = 1250 K Case 3 Co-current heat exchange with 7 = 1250 K Case 4 Counter current heal exchange with 7 = 1250 K... 

For counter current exchange we first multiply the rhs of the co-current heal exchanger energy balance by - I, leaving the rest of the Polymath program in Table 12-2.3 the same. 

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