Calculating friction loss for Irrigation system
Calculating friction loss for Irrigation system
(OP)
Dear All,
I have a project for Irrigation plant a rice seeds that need calculation of friction loss, I tried the freecallculator, but not sure if its correct. I have two problem and The problem are for case 1 & 2 because each pump for case 1 & case 2 are different.
1. Diameter of the pipe : 20"
Material of pipe : PVC
Length of pipe : 1600 Metre Horizontal
Elevation : 5 Metre
Flow rate that i use : 300 Litre/second
Pressure at : 1,5 Bar
After that i used reducer and add another Pump for :
Diameter of the pipe : 16"
Material of pipe : PVC
Length of pipe : 1035 Metre Horizontal
Elevation : 1 Metre
Flow rate that i use : 150 Litre/second
Pressure at : 4 Bar
Can anyone help me count the friction loss pleaseeeeeeeee, i need urgently
2. Diameter of the pipe : 20"
Material of pipe : PVC
Length of pipe : 2100 Metre Horizontal
Elevation : 5 Metre
Flow rate that i use : 300 Litre/second
Pressure at : 1,5 Bar
After that i used reducer and add another Pump for :
Diameter of the pipe : 16"
Material of pipe : PVC
Length of pipe : 1740 Metre Horizontal
Elevation : 0 Metre
Flow rate that i use : 150 Litre/second
Pressure at : 4 Bar
Can anyone help me count the friction loss pleaseeeeeeeee, i need urgently
and how much losses at PVC Tee 20", PVC Elbow 20", Gate Valve cast iron 20".
Thank you very much... please... please.... somebody... helppppp
I have a project for Irrigation plant a rice seeds that need calculation of friction loss, I tried the freecallculator, but not sure if its correct. I have two problem and The problem are for case 1 & 2 because each pump for case 1 & case 2 are different.
1. Diameter of the pipe : 20"
Material of pipe : PVC
Length of pipe : 1600 Metre Horizontal
Elevation : 5 Metre
Flow rate that i use : 300 Litre/second
Pressure at : 1,5 Bar
After that i used reducer and add another Pump for :
Diameter of the pipe : 16"
Material of pipe : PVC
Length of pipe : 1035 Metre Horizontal
Elevation : 1 Metre
Flow rate that i use : 150 Litre/second
Pressure at : 4 Bar
Can anyone help me count the friction loss pleaseeeeeeeee, i need urgently
2. Diameter of the pipe : 20"
Material of pipe : PVC
Length of pipe : 2100 Metre Horizontal
Elevation : 5 Metre
Flow rate that i use : 300 Litre/second
Pressure at : 1,5 Bar
After that i used reducer and add another Pump for :
Diameter of the pipe : 16"
Material of pipe : PVC
Length of pipe : 1740 Metre Horizontal
Elevation : 0 Metre
Flow rate that i use : 150 Litre/second
Pressure at : 4 Bar
Can anyone help me count the friction loss pleaseeeeeeeee, i need urgently
and how much losses at PVC Tee 20", PVC Elbow 20", Gate Valve cast iron 20".
Thank you very much... please... please.... somebody... helppppp





RE: Calculating friction loss for Irrigation system
You can buy the world famous Crane Technical Paper 410 for US$45 here ht
It will enable you to answer all your questions!
Good luck,
Latexman
RE: Calculating friction loss for Irrigation system
Why so many pumps?
**********************
"Pumping systems account for nearly 20% of the world's energy used by electric motors and 25% to 50% of the total electrical energy usage in certain industrial facilities." - DOE statistic (Note: Make that 99.99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: Calculating friction loss for Irrigation system
Length of pipe : 1600 Metre Horizontal
Elevation : 5 Metre
Flow rate that i use : 300 Litre/second
Pressure at : 1,5 Bar [highlight]Where is the pressure being measured[highlight]
After that i used reducer and add another Pump for :
Diameter of the pipe : 16"
Material of pipe : PVC
Length of pipe : 1035 Metre Horizontal
Elevation : 1 Metre
Flow rate that i use : 150 Litre/second [highlight]Where has the other 150l/s gone?[highlight]
Pressure at : 4 Bar [highlight]Where is the pressure being measured[hightlight]
Same applies to the second part.
RE: Calculating friction loss for Irrigation system
RE: Calculating friction loss for Irrigation system
Because that is what the homework assignment required.
RE: Calculating friction loss for Irrigation system
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RE: Calculating friction loss for Irrigation system
RE: Calculating friction loss for Irrigation system
I don't have friction loss charts for 20" PVC but using 20" new steel pipe looks like the friction head (only) thru 14107 ft @ 4755 UGGPM will be in the order of 140ft.
Where are you - my consultancy rates are reasonable and I'm happy to fly economy for short-haul and business class for over 6 hours flying
RE: Calculating friction loss for Irrigation system
Its Free
http://www.epanet.com/downloads.asp
,or as Artisi suggests, find a consultant.
**********************
"Pumping systems account for nearly 20% of the world's energy used by electric motors and 25% to 50% of the total electrical energy usage in certain industrial facilities." - DOE statistic (Note: Make that 99.99% for pipeline companies) http://virtualpipeline.spaces.live.com/