mecahnical engg. hydraulics and pupming

To be able to do any calculation the setup at each outlet must be known.

For example is it a 1200mm t piece pointing upwards or sideways? will there be any flow restricting done at the outlets like a orifice or a nozzle or a pressure regulated discharge valve?

For this post it is assumed that all the outlets are open.

With this available you could use a spreadsheet to do the calculations.

The idea is to produce a system curve and superimpose it on the pump curve and find the balancing flow.

The method to follow is simple.

start at the furthest point with a small pressure.

Calculate the discharge at that point.

Calculate the friction in the last pipe section at the calculated flow.

The pressure at the previous point can then be calculated = initial pressure + friction + static (negative at that point)

The outflow at that point can the be calculated.

The friction can then be calculated with re total flow over that section.

If this is repeated for all the sections the result at the pump will be a flow vs head.

If the same calculation is repeated with different ending pressures the system curve can be plotted.

The total flow at the cross point will be the working situation.

Hope it is clear enough.

With the end pressure too low you may end up with zero pressure at points 1 and 4 (when the friction is less than the static gain). skip until all outlets have positive pressures.

Softwares are available like pipenet. You can even get a basic free version on line, and use it as Henrick as detailed.

One parameter which you need to finalise before going for calculations is what flow you want at the various locations and whether any terminal pressure is required at these out let whether for process requirement or due to receipt tank head (In case of receipt tank take the max head).

The calucation has to start from the farthest end only and while you work upstream, pressure at respective points can be calculated. You may need to regulate the various outlets by control valve at different locations.

"2.) whether any software is available for solving such type of problems?"

Try with the Epanet software provide free by the EPA at the website, it is usefull for water nets.

Regards

Ernesto