Recent content by balotpinoy

im just trying to evaluate the difference between having a 10 or 20 in diameter header. the first set up was 10 inches diameter header and it was changed to 20 inches due to unknown reasons. i just want to know if that change actually help in terms of the discharge pressure. thank...

yes.. centrifugal pumps..

kindly see attached diagram.. thank you.. each pump has a capacity of 2,200 gpm at 180 ft head..

kindly see attached diagram.. thank you.. each pump has a capacity of 2,200 gpm at 180 ft head..

kindly help me with this one. im trying to find out what is the effect if i increase the diameter of my header pipe in a water distribution line. i think pressure at the discharge pipe will decrease. if so, i don't know how to justify it. tnx in advans.

so i need to compute the flowrate using bernoulli taking into account % opening of the valve in the friction loss term? if so, where can i find values of Kf for both ball and butterfly valves.. tnx a lot..

is it right to say that valve opening for both ball & butterfly valve is directly proportional to flowrate passing through it? say 100 m^3/hr at 100% opening 50 m^3/hr at 50% opening?? thanks in advance..

its a PD pump and that's the only data available for that pump since its old already. so far here is what i did with my problem; to solve for Q in lines 1 & 2, i first computed for Pressure at point B (pls refer to attached drawing) using bernoulli's equation in pipe A-B using 30 meters...

kindly help me with this one.. i want to compute the actual volumetric flowrate in line 1 & 2. discharge for both lines are in different elevations. given data for me is these; mono pump capacity= 10 m3/hr at 30 meters line 1 from tee to discharge is a 2-inch pipe line 1 discharge...

no more deductions for pump efficiency?

so can i use it in Bernoulli's equation as work given to the fluid? - head x density x gravitational constant is that right?

a pump capacity of 10 m^3/hr at 30 meters head. what does the 30 meters head mean? thank you..