The actual formula for it is (specific weight*volumeflowrate*totalhead)/efficiency The over 75 is from(9810N/m^3)/(1000L) all over 746. It's just rounded up to 1/75. In the video it doesn't show the full, but the correct answer is not far , in my calculation its 1.3177hp, in the video its 1.33hp, will end up to 2hp pump.
@@gomu2nomixb770tell me about a pump that is 2 hp and fills 10k litres in 30 minutes as per the findings here. Even 1.33 is close to 1.5 so 1.5 hp shd do that
Very good
Excellent
nice...
What is 75 in the calculation?
How the value of pump and motor efficiency is obtained....
From supplier
Wawa
How correct is this pump sizing equation because I can’t find it anywhere else
It's from fluid mechanics subject if you take mechanical engineering course.
Height 200mtr for water lifting
Capacity 1 million ltr
So pz tell me which HP pump required ?
Haw many price
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Romans 8:31 😊
why use 75 factor in formula , please comments
The actual formula for it is (specific weight*volumeflowrate*totalhead)/efficiency
The over 75 is from(9810N/m^3)/(1000L) all over 746.
It's just rounded up to 1/75.
In the video it doesn't show the full, but the correct answer is not far , in my calculation its 1.3177hp, in the video its 1.33hp, will end up to 2hp pump.
@@gomu2nomixb770tell me about a pump that is 2 hp and fills 10k litres in 30 minutes as per the findings here.
Even 1.33 is close to 1.5 so 1.5 hp shd do that
Why horizontal distance does not play into the equation?
Because we only assume that the pump work depends on the difference of Height to simplify the calculation.
what is 100 in the actual head of the pump(h)=(h1+H2)*(100+f)%
It's just a percentage, adding the friction loss of 30% to a 100% head of the pump.