Question

A heat engine is coupled with a dynamometer. The length of the load arm is 900 mm. The spring balance reading is 16. Applied weight is 500 N. Rotational speed is 1774. How many kW of power will be developed?

Answer 1

P = 80.922 KW

Step-by-step explanation:

Given data;

Length of load arm is 900 mm = 0.9 m

Spring balanced read 16 N

Applied weight is 500 N

Rotational speed is 1774 rpm

we know that power is given as

`P = T* \omega`

T Torque = (w -s) L = (500 - 16)0.9 = 435.6 Nm

`\omega` angular speed
`=(2 \pi N)/(60)`

Therefore Power is

`P =(435.6 \time 2 \pi * 1774)/(60) = 80922.65  watt`

P = 80.922 KW