Given the following experimental data collected, what is the approximate torque of this motor at peak efficiency?

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter5: Analysis Of Convection Heat Transfer
Section: Chapter Questions
Problem 5.2P: 5.2 Evaluate the Prandtl number from the following data: , .
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Given the following experimental data collected, what is the approximate torque of this motor at peak efficiency?

Load
Rotational Torque Mechancial Electrical
Power (W) Power (W)
Load
Efficiency
Mass (kg) Force (N) Speed (rad/s) (Nm)
0.74
0.74
8.9
0.0074
0.072
0.36
0.20
0.174
1.72
8.3
0.0172
0.144
0.48
0.30
0.274
2.7
7.5
0.0270
0.210
0.62
0.34
0.374
3.68
7
0.0368
0.260
0.73
0.35
0.574
5.64
5.8
0.0564
0.320
1
0.32
0.774
7.6
4.2
0.0760
0.320
1.27
0.25
Transcribed Image Text:Load Rotational Torque Mechancial Electrical Power (W) Power (W) Load Efficiency Mass (kg) Force (N) Speed (rad/s) (Nm) 0.74 0.74 8.9 0.0074 0.072 0.36 0.20 0.174 1.72 8.3 0.0172 0.144 0.48 0.30 0.274 2.7 7.5 0.0270 0.210 0.62 0.34 0.374 3.68 7 0.0368 0.260 0.73 0.35 0.574 5.64 5.8 0.0564 0.320 1 0.32 0.774 7.6 4.2 0.0760 0.320 1.27 0.25
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