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  3. you wish to heat a stream of co2 at pressure...

Question: you wish to heat a stream of co2 at pressure...

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You wish to heat a stream of CO2 at pressure 1 bar, flowing at 10 mol/s, from 150°C to 300°C in a countercurrent heat exchanger. To do this task, you have been asked to use a stream of high-pressure steam available at 40 bar and 400°C, as shown in the following figure. You may assume the pressure of each stream stays constant as it flows through the heat exchanger (i.e., neglect the pressure drop of the flowing streams). The process is at steady state. The entire system is well insulated, as shown. It is undesirable for the steam to condense in the heat exchanger tubes. What is the minimum volumetric flow rate, in m3/s, required of the inlet steam to keep it from condensing at the exit? mol nco, = 10 in 150 [oC] Pin 1 [barl Heat Exchanger Tat-300 PC] out CO2 CO2 Steam Steam Tm=400 [°C] Pin-40 [bar] Insulation

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