DEVELOPMENT A PROGRAM TO OPTIMIZE DESIGN OF LOW HEAD BUBBLER IRRIGATION

Document Type : Original Article

Author

Assist. Prof., Agric. Eng. Dept., Fac. of Agric., Suez Canal University, 41522 Ismailia, Egypt.

Abstract

In low head bubbler irrigation, water is applied to the soil surface as a little stream, typically from a small-diameter  tube without filtration. The main aim of this study was helped to introduce a proper design of a low head bubbler lateral which achieves full application uniformity. In this study, a computer program was developed to identify bubbler heights hh at each outlet point, maximum of outlet numbers On, lateral length Lmax and flow QT, using the data obtained from water temperatures Tw, bubblers and lateral diameters, allowable lateral upstream pressure head Hal and the soil surface slope. The optimum design example was presented to four bubbler tube diameters of 3.8, 6.0, 10.0 and 13.6mm with allowable lateral upstream pressure head Hal, of 1.0 and 1.5m for different bubbler discharges qb. Laboratory experiments to validate this example were performed. The results showed that a high correlation between the developed design program, and the results obtained from laboratory experiments. The study revealed that the program was an efficient and accurate way to design full irrigation uniformity by very low operating pressure.  

Keywords

Main Subjects

References

ASABE EP 405.1 Standards (2008): Design and Installation of micro irrigation systems. St Joseph, Michigan, ASAE. 942- 945.
Bisconer, I. (2010): Why Field Crop Growers Love Drip Irrigation: Alfalfa, Corn, Cotton, Onions, Potatoes and Processing Tomatoes. ASABE Annual International Meeting, David L. Lawrence Convention Center, Pittsburgh, Pennsylvania.31pp,  Paper Number: 1008764.
Boor, B., J. Kunstatsky and C. Patocka. (1968): Hydraulika Provodohospodarske stavby book, SNTL, Praha, 516 pp.  M.S.M. Amin and Z.J. Svehlik1, Hydraulic Analysis of Micro-irrigation Laterals: a New Approach, Pertanika J. Sci. & Techno!' 2(1): 107-119 (1994).
Carr, M. and M. G. Kay (1980): Bubbler irrigation. Horticultural industry Journal. No. March: 11-12, Record Number 19802406454.
Didan, K., Reynolds, C. and Yitayew, M. (1996): Bubbler Users Manual: A Computer Program for Designing Low-Head Gravity Flow Bubbler Irrigation System for Trees, Vines, and Orchard Crops. Technical Bulletin 268, Agricultural Experiment Station, College of Agriculture, The University of Arizona, Tucson, Arizona 85721.
Hashem, A. A.; Rashad, M. A.; Ramadan, M. H. and Abd El-Hak, S. M. (2011): Performance Evaluation of Low Head Bubbler Irrigation System. Journal of Soil Sciences and Agriculture Engineering, Mansoura University, Vol. 9 (2).
Hills, J. D. and Yitayew, M. (2007): chapter 14. Bubbler Irrigation, Microirrigation for Crop Production book. F.R. Lamm, J.E. Ayars and F.S. Nakayama (Editors), © Elsevier B.V., 553-573.
Hull, P.J. (1981): A low pressure irrigation system for orchard tree and plantation Crops. The agricultural Engineer. 55-58.
Omara, A. I., Sourell, H., Irps H., and Sommer, C. (2004): Low-pressure irrigation system powered by wind energy. Journal of Applied Irrigation Science. Vol. 39 (1): 83 – 91, ISSN 0049-8602.
Rawlins, S. L. (1977): Uniform irrigation with a low head bubbler system. Agriculture and Water Management. Elsevier Co, Amsterdam, the Netherlands. Vol 1:167-178.
Watters, G. Z. and J. Keller (1978): Trickle irrigation tubing hydraulics, ASAE Technical paper No. 78-2015. St. Joseph, Michigan.17p.
Yitayew , M.; Didan, K. and Reynolds, C. (1999): Microcomputer based low-head gravity-flow bubbler irrigation system design. Computers and Electronics in Agriculture, 22 (1999) 29–39.

Files

Share

How to cite

Statistics