![subject](/tpl/images/cats/User.png)
Engineering, 12.03.2020 03:27 9Time
A 5-cm-diameter shaft rotates at 4500 rpm in a 15-cmlong, 8-cm-outer-diameter cast iron bearing (k = 70 W/m·K) with a uniform clearance of 0.6 mm filled with lubricating oil (μ = 0.03 N·s/m2 and k = 0.14 W/m·K). The bearing is cooled externally by a liquid, and its outer surface is maintained at 40°C. Disregarding heat conduction through the shaft and assuming one-dimensional heat transfer, determine (a) the rate of heat transfer to the coolant, (b) the surface temperature of the shaft, and (c) the mechanical power wasted by the viscous dissipation in oil.
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Engineering
![image](/tpl/images/cats/User.png)
![image](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:10, mamasbug4285
An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0
Answers: 3
![image](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:20, ashleyjaslin
Derive the correction factor formula for conical nozzle i=-(1+ cosa) and calculate the nozzle angle correction factor for a nozzle whose divergence hal-fangle is 13 (hint: assume that all the mass flow originates at the apex of the cone.
Answers: 3
![image](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:20, samueltaye
Modern high speed trains do not have perpendicular expansion gaps where rails are joined end-to-end any more they are mostly welded together but what might happen if there was a spell of particularly hot weather that causes inspection of the tracks?
Answers: 1
You know the right answer?
A 5-cm-diameter shaft rotates at 4500 rpm in a 15-cmlong, 8-cm-outer-diameter cast iron bearing (k =...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
Mathematics, 05.12.2020 01:00
![Konu](/tpl/images/cats/en.png)
English, 05.12.2020 01:00
![Konu](/tpl/images/cats/mat.png)
Mathematics, 05.12.2020 01:00
![Konu](/tpl/images/cats/mat.png)
Mathematics, 05.12.2020 01:00
![Konu](/tpl/images/cats/mat.png)
Mathematics, 05.12.2020 01:00
![Konu](/tpl/images/cats/mat.png)
Mathematics, 05.12.2020 01:00
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 05.12.2020 01:00
![Konu](/tpl/images/cats/mat.png)
Mathematics, 05.12.2020 01:00
![Konu](/tpl/images/cats/mat.png)
Mathematics, 05.12.2020 01:00