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1. At steady state, an electric motor develops 2 kW of power along its output shaft while drawing...
A closed chamber containing a gas is at steady state. The shaft transfers power at a...
A closed chamber containing a gas is at steady state. The shaft
transfers power at a rate of W˙sh,in= 2.0 kW to the paddle
wheel and the electric lamp consumes electricity at a rate of
W˙el,in= 700 W .
A) Using an energy balance determine the rate of heat transfer,
in kW.
B) If the surface temperature of the chamber is 430 K ,
determine the entropy generated within the chamber, in kW/k
C) What would the entropy generation within...
Question 1 During steady state operation, a gear box receives 60kW through the input shaft and...
Question 1 During steady state operation, a gear box receives 60kW through the input shaft and delivers power through the output shaft. For the gearbox as the system, the rate of energy transfer by convection is given by Q=-hA(Tb - T) Where h 0.171kW/m2.k is the heat transfer coefficient, A=1.0m2 is the outer surface are of the gearbox. Tb 300k is the temperature at the outer surface and T 293 K is the temperature of the surrounding air. For the...
2) Problem 5: A steam turbine works at steady state, developing 100 kW of power output....
2) Problem 5: A steam turbine works at steady state, developing 100 kW of power output. The mass steam, m, is l kgs. The velocities of steam at the inlet and the exit are 90 m/s and O ms, respecti def difference in height between the inlet and the exit is negligible. The difference in specific enthalpy betwen fhe inlet steam and the exit steam, (h-h), is 100 kJ/kg. The specific volume of steam at the exit, V, is 0...
Question 1 Question 2: Question 3: Question 4: Question 5: Question 6: Question 7: Question 8:...
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Please number each question. Thank you
Question 1 Not yet answered Marked out of 4.00 Flag question If the number density of electrons in a wire is n 1.00 x 1028 m-3, at what drift velocity must they travel through a wire of diameter d 0.560 mm to deliver a current of 7.20 A? Give your answer in mm s1 to 3 significant figures...
summatize the following info and break them into differeng key points. write them in yojr own...
summatize the following info and break them into differeng key points. write them in yojr own words
apartus
6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
A closed chamber containing a gas is at steady state. The shaft
transfers power at a rate of W˙sh,in= 2.0 kW to the paddle
wheel and the electric lamp consumes electricity at a rate of
W˙el,in= 700 W .
A) Using an energy balance determine the rate of heat transfer,
in kW.
B) If the surface temperature of the chamber is 430 K ,
determine the entropy generated within the chamber, in kW/k
C) What would the entropy generation within...
Question 1 During steady state operation, a gear box receives 60kW through the input shaft and delivers power through the output shaft. For the gearbox as the system, the rate of energy transfer by convection is given by Q=-hA(Tb - T) Where h 0.171kW/m2.k is the heat transfer coefficient, A=1.0m2 is the outer surface are of the gearbox. Tb 300k is the temperature at the outer surface and T 293 K is the temperature of the surrounding air. For the...
2) Problem 5: A steam turbine works at steady state, developing 100 kW of power output. The mass steam, m, is l kgs. The velocities of steam at the inlet and the exit are 90 m/s and O ms, respecti def difference in height between the inlet and the exit is negligible. The difference in specific enthalpy betwen fhe inlet steam and the exit steam, (h-h), is 100 kJ/kg. The specific volume of steam at the exit, V, is 0...
Question 1
Question 2:
Question 3:
Question 4:
Question 5:
Question 6:
Question 7:
Question 8:
Please number each question. Thank you
Question 1 Not yet answered Marked out of 4.00 Flag question If the number density of electrons in a wire is n 1.00 x 1028 m-3, at what drift velocity must they travel through a wire of diameter d 0.560 mm to deliver a current of 7.20 A? Give your answer in mm s1 to 3 significant figures...
summatize the following info and break them into differeng key points. write them in yojr own words
apartus
6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
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