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Water supply system

Water supply system

Water supply system

(OP)
I need to design a water supply system to meet the following: Flow rate at 5000 cubic metres/hour; Pressure at end - 200kPa; Distance -13 kilometres; Elevation increase - 70 metres and direction changes - 5X90degrees.

 

RE: Water supply system

(OP)
I want to know how do I choose my pump? Where do I position it? Do I use the Bernoulli equation to get the head loss due to friction, and how is this head loss related to the losses in each bend, at valves (wherever I decide to put them)? The friction losses at the bends cannot be calculated straight away as I do not have the size of the pipe (only flowrate is given). I believe if I can get the total losses due to friction I can get somewhere.
How will you suggest I approach this?  

RE: Water supply system

Have a look at the "How to Design a Pipeline" article at

http://virtualpipeline.spaces.msn.com

"What gets us into trouble is not what we don't know, its what we know for sure" - Mark Twain

RE: Water supply system

BTW, 5000 m3/h will require a relatively large diameter pipeline (42").  The pump(s) will be (total) approximately 2000 HP, if there is no higher point between beginning to end.  Just a guess, but you might not want just one pump, if criticality of supply could become an issue.  I would also think waterhammer might come into play, especially if you try to reduce the pipe diameter.  Can't you find a pipeline engineer somewhere?  I suggest you might need one.   

http://virtualpipeline.spaces.msn.com

"What gets us into trouble is not what we don't know, its what we know for sure" - Mark Twain

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