An open system with only one inlet and one exit operates at steady state. Mass enters the system at a flow rate of 8 kg/s with the following properties: h= 3245 kJ/kg s= 8.0514 kJ/kg - K, and V = 18 m/s. At the exit the properties are as follows: h= 2139 kJ/kg s= 8.089 kJ/kg - K, and V = 29 m/s. The device produces 8799 kW of shaft work while rejecting some heat to the atmosphere at 30 °C. Part A Do a mass analysis to determine the mass flow rate at the exit Express your answer to three significant figures. ΑΣφ Submit Reguest Answer • Part B Do an energy analysis to determine the rate of heat transfer (include sign). Express your answer to three significant figures and include the appropriate units. Value Units Submit Request Answer • Part C Do an entropy analysis to evaluate the rate of entropy generation in the system's universe. Express your answer to three significant figures.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Item 9
An open system with only one inlet and one exit operates at steady state. Mass enters the system at a flow rate of 8 kg/s with the following properties: h = 3245 kJ/kg, s = 8.0514 kJ/kg - K, and V = 18 m/s. At the exit the properties are as follows: h = 2139 kJ/kg, s = 8.089 kJ/kg · K, and
V = 29 m/s. The device produces 8799 kW
shaft work while rejecting some heat to the atmosphere at 30 °C.
Part A
Do a mass analysis to determine the mass flow rate at the exit.
Express your answer to three significant figures.
ΑΣφ |vec
?
Submit
Request Answer
Part B
Do an energy analysis to determine the rate of heat transfer (include sign).
Express your answer to three significant figures and include the appropriate units.
?
Value
Units
Submit
Request Answer
Part C
Do an entropy analysis to evaluate the rate of entropy generation in the system's universe.
Express your answer to three significant figures.
ΑΣφ vec
?
kW
K
Transcribed Image Text:Item 9 An open system with only one inlet and one exit operates at steady state. Mass enters the system at a flow rate of 8 kg/s with the following properties: h = 3245 kJ/kg, s = 8.0514 kJ/kg - K, and V = 18 m/s. At the exit the properties are as follows: h = 2139 kJ/kg, s = 8.089 kJ/kg · K, and V = 29 m/s. The device produces 8799 kW shaft work while rejecting some heat to the atmosphere at 30 °C. Part A Do a mass analysis to determine the mass flow rate at the exit. Express your answer to three significant figures. ΑΣφ |vec ? Submit Request Answer Part B Do an energy analysis to determine the rate of heat transfer (include sign). Express your answer to three significant figures and include the appropriate units. ? Value Units Submit Request Answer Part C Do an entropy analysis to evaluate the rate of entropy generation in the system's universe. Express your answer to three significant figures. ΑΣφ vec ? kW K
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