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Power Transmission Need Help

  • Thread starter nettie2311
  • Start date
  • #1
14
0

Homework Statement



A belt drive transmits 56kW from the driver pulley to the driven pulley. If 2.5kW is lost in belt friction, calculate:

1. kW's supplied by driver pulley

2. efficiency of the belt drive expressed as a percentage.

Homework Equations



%Efficiency = (power output/power input) x 100%

The Attempt at a Solution





I'm really not sure how to tackle this question, if anyone can help it would be greatly appreciated.

Thanks
 

Answers and Replies

  • #2
L2E
28
0
power in = 56kW
Power loss = 2.5kW
power out = power in - power loss

for efficiency you can just use your equation.

Try it right now!
 
  • #3
berkeman
Mentor
57,329
7,323

Homework Statement



A belt drive transmits 56kW from the driver pulley to the driven pulley. If 2.5kW is lost in belt friction, calculate:

1. kW's supplied by driver pulley

2. efficiency of the belt drive expressed as a percentage.

Homework Equations



%Efficiency = (power output/power input) x 100%

The Attempt at a Solution





I'm really not sure how to tackle this question, if anyone can help it would be greatly appreciated.

Thanks
copying...
 
  • #4
L2E
28
0
Reading was definitely not my strong point last night. Just want to change what I wrote.

if 56kW was supplied to the driven pulley, 56kW is the output.
the input is unknown (well it's 58.5kW)
 

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