Question

Determine the brake horsepower required by a pump for a discharge of 0.2 m3/s and a total dynamic head of 20m, with an efficiency of 80%.

Answer 1

The BHP would be "65.659 HP".

Step-by-step explanation:

The given values are:

Discharge,

Q = 0.2 m³/s

Dynamic head,

H = 20 m

Efficiency,

% = 80%

Now,

The Power will be:

⇒
`P=\delta QH`

On substituting the values, we get

⇒
`=1000* 9.81* 0.2* 20`

⇒
`=39240 \ W`

The brake horse power will be:

⇒
`BHP=(100 Q H)/(3960n)`

On putting values, we get

⇒
`=(100* 0.2* 20)/(3960* 0.80)`

⇒
`=65.659 \ HP`