[insert_php]
$nh = $w = $w1 = $OKVA = $NKVA= $temp= $temp1= $temp3 = $temp2 = $temp6 = 1 ;

if(isset($_POST[‘submit’])) //is-set function, when ever submit button is clicked this function executes
{
$w = $_POST[‘PF’]; //assigning values from Form to valiables
$w1 = $_POST[‘HE’];

}
unset($_POST[‘submit’]); //unsetting Submit button

$temp1 = $w+$w1;
$OKVA = $w/$temp1;

[/insert_php]

How to Calculate Hydraulic Efficiency of Pump or Fan – Calculator

 

Specific Work From the Pump or Fan		Nm/kg
Specific Work Lost Due to Hydraulic Effects		Nm/kg
Hydraulic Efficiency	[insert_php] echo $OKVA; [/insert_php]