Ar AT

Dp 1 V T 273 gt pJ pa SC 2 p 14.7 Consider, for example, the following Operating temperature 397 F Operating pressure 215 psia -78 x 100 - 5.2 percent error 1500 11.4 Heat-Flow Computations Example 2 As mentioned in Chapters 3 and 4, it is sometimes desirable to calculate heat flow, reflux rate, or boilup rate. Let us consider, for example, the heat exchanger of Figure 11.4. We wish to know the increase or decrease of enthalpy Heat flow computer for heat transfer Heat flow computer for heat...

W

Internal Reflux Columns

W We make no effort to cover all measurements and hardware here. We have selected, however, a number of items we think are important, or are worth emphasizing, or have not been covered adequately elsewhere. A glaring omission is that of flow metering. We are very suspicious of the accuracy of most inplant flow meters because only rarely do plants have facilities for their calibration, but we have nothing new or unique to offer for improvement. Considerable emphasis, on the other hand, has been...