Question
7.29 A gearbox operating at steady state receives 4 hp along the input shaft and delivers 3 hp along the output shaft. The outer surface of the
gearbox is at 130°F. For the gearbox,
(a) determine, in Btu/s, the rate of heat transfer and
(b) perform a full exergy accounting, in Btu/s, of the input power. Let To 70°F.

Image Transcription

7.29 A gearbox operating at steady state receives 4 hp along the input shaft and delivers 3 hp along the output shaft. The outer surface of the gearbox is at 130°F. For the gearbox, (a) determine, in Btu/s, the rate of heat transfer and (b) perform a full exergy accounting, in Btu/s, of the input power. Let To 70°F.

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times vary by subject and question complexity. Median response time is 34 minutes and may be longer for new subjects.
Tagged in

Related Mechanical Engineering Q&A

Find answers to questions asked by students like you.

Q: True or False: There is only one layout allowed in a drawing file.

A: The sheet set manager consists of multiple sheets. The drawing file created by the sheet set manager...

Q: An oblong board 3m high and 5m wide is placed vertically in water in such a manner that its upper fa...

A: Obtain the location of the centre of pressure (h). 

Q: Point A of the circular disk is at the angular position 0 0 at time t 0. The disk has angular veloci...

A: Draw the free-body diagram of the circular disk. 

Q: Calculate the change in water pressure from the surface to a depth of 5m. Is this just (9.81m/s^2)(5...

A: Gauge pressure:It is the pressure which is evaluated with reference to the atmospheric pressure. Her...

Q: Refrigerant 134a enters the condenser of a residential heat pump at 900 kPa and 40 degrees C at a ra...

A: Assumption:Pump operate in steady stateKinetic and potential energies are neglected. Solution:Draw t...

Q: Question 2 A propped cantlever beam in Figure Q2 is loaded by a triangularly distrnbuted load of max...

A: (2.1)For equilibrium conditions, determine the directions of reactions at points A (RA) and B (RB) a...

Q: Air is expanded in a multi-stage axial flow turbine, and the pressure drop across each stage is very...

A: Write the basic equation of thermodynamics with ds = 0.

Q: Question 4 A beam made up of two unequal leg angles is subjected bending moment M having to a its ve...

A: Refer “PROPERTIES OF EUROPEAN UNEQUAL ANGLES”.

Q: An open feedwater heater is a direct-contact heat exchanger used in vapor power plants. Shown in the...

A: Obtain the value of enthalpy and entropy corresponding to pressure 3 bar and temperature 31 deg Cels...