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Number of Siderolls Needed <br /> _ #days one sideroll [13] [14] <br /> irrigation frequency[7] 1 siderolls <br /> Required sprinkler head capacity <br /> flow at nozzle= <br /> Hourly app.Rate[12]"[Sm]"[S1] 3.99 gpm [15] <br /> 96.3(comersion factor) <br /> Sprinkler Nozzle Coverage <br /> Select Nozzle from Catalogs with: MakeNelson R33's <br /> Given pressure®psi [P] Size 5/32 inch <br /> required head capicily 4.45 gpm [16] Flow 4.45 gpm [16] <br /> PSI @ Nozzle 40 psi [DP] Design Pressure <br /> DIA 86 ft <br /> Sideroll Length <br /> [SRL]=Field Width[W]-1 Spacing along lateral[S1] 1080 ft [SRL] <br /> [SRL]must be in 40ft increments 1040 ft <br /> Number of Head's Required <br /> _ [SRL] 27 Head.p r [17] <br /> [Si) SO-11 <br /> Determine Sideroll Headloss <br /> Spec.allows a variation of up to+/-10%of the design pressure with out special design <br /> Multiple Outlet Facto 0.364 [F] use#of outlets per sideroll(Table CO385.72) <br /> Lateral Size=use 5inch diameter <br /> Flow per Sideroll <br /> _ (#of heads[17])"(nozzle flow[16]) 120.15 gpm <br /> Sideroll Headloss per 100LF <br /> Sideroll Length SRL 0.244 ft/100ft [18] (Table CO685.73) <br /> for 40ft pipe lengths <br /> Total Sideroll Headloss <br /> _ (Sideroll Length[SRL]"(Headloss[18])"[F] 0.4 psi [19] w/5inch lateral <br /> 2.31"100 <br /> Pressure Gain or Loss Due to Field Slope <br /> [S]%"[SRL] 23.4 +/ [ ]20 Note:look at the most reslrictiNe conditions in an entire field <br /> 2.31'100 pressure pressure due to ele%etion change <br /> Pressure Variation <br /> Sideroll headbss[19]+ele.Pressure gairdloss[20] 59.5% Pressure Variation must not exceed+1-10%of DP. <br /> [DP] Ifflow control nozzles are used,than+/_10%pressure lira it can be deltwith easily <br /> 20 May 2019 JR-90) <br />