SPRINKLER IRRIGATION SYSTEM DESIGN AND EVALUATION BASED ON UNIFORMITY | ||
| Misr Journal of Agricultural Engineering | ||
| Article 16, Volume 29, Issue 2, April 2012, Pages 763-788 PDF (754.64 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/mjae.2012.102347 | ||
| Authors | ||
| Kamal H. Amer1; M.A. Aboamera1; A.H. Gomaa1; Sobhy B. Deghedy2 | ||
| 1Ass.Prof. ,Agric.Eng.Fac.of agric. Menoufia University, Egypt. | ||
| 2Eng. ,Agric.Eng.,Sept.,Fac.of agric. Menoufia University, Egypt. | ||
| Abstract | ||
| A selected rotating sprinkler was tested in radial test within 100 to 300 kPa under nozzle #8 with 25º trajectory angle and #3 with 11º and 25º trajectory angles. K— Rain 75 pop-up sprinklers were selected due to having 12 different nozzle trajectory angles. Sprinkler discharge application rate, and pattern radius were measured at different operating pressures in individual test. For 300kPa high distribution uniformity was obtained for nozzle #8 with 25º trajectory angle in square and rectangular layouts. Square layout achieved distribution uniformity higher than rectangular layout for overlapping 100and 80%. Friction loss for a given pipe length was found in designing optimal main ,sub-main and lateral diameters under optimal nozzle angle, pressure, layout and overlapping. | ||
| Keywords | ||
| irrigation sprinkler system design; evaluate uniformity distribution coefficient; nozzle discharge; optimal operating pressure | ||
| References | ||
|
Aboamera, M.A, and H.Sourell (2003). Characteristics of water distribution and irrigation intensity for floppy sprinklers. The 11th Annual Conference of Misr Society of Agric., Eng., Egypt, 15- 16Oct.,20(4) : 937-948.
Anonymous,(1995). Agricultural irrigation equipment. Rotating sprinklers . Part 1. Design operational requirements. ISO Standard 7749/1. ISO, Geneva. Switzerland
Amr,K.H.(2006).Water Distribution Uniformity As Affected By Sprinkler Performance. Misr J.Ag.Eng.,23(1):66-79.
Ascough,G.W.,andG.A.Kiker(2002).The effect of irrigation uniformity on irrigation water requirements. Water ASA, 28(2): 235-241.
Christiansen,J.E.(1942). Irrigation by sprinkling. California Agric. Exp.Sta., Bull. 670.,124p University of California .Berkeley, California.
Ducks, M.D. and C.Perry (2006). Uniformity testing of variable-rate center pivot irrigation control systems. Precision Agriculture, 7(3):205-218.
El-Awady,M.N.,E.G.Vis, R.Kumar.,and S.Mitra (2003). Distribution uniformity from pop - up sprinklers and landscape water –saving. The 11th Annual Conf., MSAE, Kafr ElSheikh,Egypt: 181-194.
El-Sherbeni,A.M.(1994). Design of sprinkler and drip irrigation systems in newly reclaimed soils. Unpublished Ph.D. Thesis in Agric.,Eng., Faculty of agriculture, Zagazig university, Egypt,141P.
Hegazi,M.,K.H.Amr and H. Moghazy (2007). Sprinkler Irrigation System Layout Based On Water Distribution Pattern.
Irrigation Training and Research Center ITRC(1991).Landscape water management principles. Version 1,01, Cal Poly State University, San Luis Obispo, California, HOP.,C.F.
Keller, J., and R.D.Bliesner (1990). Sprinkler and Trickle Irrigation. New York, N.Y:Van Nostrand Reinhold.
Li,J., and H.Kawano (1998). Sprinkler performance as affected by nozzle inner contraction angle. Irrig. Sci., 18:63-66.
Warrick,A.W.,and M.Yitayew (1988). Trickle lateral hydraulic. L., Analytical solution, J. Irrig. and Drainage, ASCE 114(2):281-288.
Waters,G.Z., and J.Keller (1978). Trickle irrigation tubing hydraulics. ASAE Paper 78-2015.
Zanon,E.R., R.Testezlaf, and E.J.Matsura (2000).a data acquisition system for sprinkler uniformity testing. Applied Engineering in Agriculture of the ASAE 16(2): 123-127. | ||
|
Statistics Article View: 346 PDF Download: 1,690 |
||
