Redo Problem 6.32 using Aspen Plus Problem 6.32 Repeat the calculations of Problem 6.13 if the mechanical

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Redo Problem 6.32 using Aspen Plus

Problem 6.32

Repeat the calculations of Problem 6.13 if the mechanical efficiency of the adiabatic turbine is only 85 percent.

Problem 6.13

Eighteen kilograms of the refrigerant HFC-134a at 150°C is contained in a 0.03-m3 tank. Compare the prediction you can make for the pressure in the tank with that obtained using Fig. 3.3-4. For data, see Table 6.6-1.

Fig. 3.3-4.

Pressure (MPa) 100 20. 10. 8. 6. 4. N 2. 1. 0.8 0.6 0.4 0.2 0.1 0.08 0.06 0.04 0.02 0.01 100 150 QUPORD

Table 6.6-1.Substance Acetylene Ammonia Argon Benzene n-Butane Isobutane 1-Butene Carbon dioxide Carbon monoxide Carbon

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