4. Assume 4 lb/sec of fluid enter a steady state, steady flow system with p1 = 100 psia, density 1 = 0.2 lb/cu.ft, v1 = 100 fps, u1 = 800 Btu/lb and leave with p2 = 20 psia, density 2 = 0.05 lb/cu.ft, v2 = 500 fps, u2 = 780 Btu/lb. During the passage through the open system, each pound rejects 10 Btu of heat. Determine the following: a. the change in kinetic energy in horsepower (hp) 40.65 27.103 14,906.811 b. the change in internal energy in horsepower (hp) -169.731 -80.000 -113.207 c. the change in flow work in horsepower (hp) -157.600 104.727 -104.727

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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4. Assume 4 lb/sec of fluid enter a steady state, steady flow system with p1 =
100 psia, density 1 = 0.2 lb/cu.ft, v1 = 100 fps, u1 = 800 Btu/lb and leave with p2 =
20 psia, density 2 = 0.05 lb/cu.ft, v2 = 500 fps, u2 = 780 Btu/lb. During the passage
through the open system, each pound rejects 10 Btu of heat. Determine the
following:
a. the change in kinetic energy in horsepower (hp)
40.65
C.
27.103
14,906.811
b. the change in internal energy in horsepower (hp)
-169.731
-80.000
-113.207
the change in flow work in horsepower (hp)
-157.600
104.727
-104.727
d. the work of the turbine in horsepower (hp)
168.026
134.227
201.325
Transcribed Image Text:4. Assume 4 lb/sec of fluid enter a steady state, steady flow system with p1 = 100 psia, density 1 = 0.2 lb/cu.ft, v1 = 100 fps, u1 = 800 Btu/lb and leave with p2 = 20 psia, density 2 = 0.05 lb/cu.ft, v2 = 500 fps, u2 = 780 Btu/lb. During the passage through the open system, each pound rejects 10 Btu of heat. Determine the following: a. the change in kinetic energy in horsepower (hp) 40.65 C. 27.103 14,906.811 b. the change in internal energy in horsepower (hp) -169.731 -80.000 -113.207 the change in flow work in horsepower (hp) -157.600 104.727 -104.727 d. the work of the turbine in horsepower (hp) 168.026 134.227 201.325
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