HYDRAULIC PERFORMANCE OF LOW PRESSURE DRIP IRRIGATION APPROPRIATE FOR SMALLHOLDINGS

Document Type : Original Article

Authors

1 Postgraduate student, Fac. of Ag., Benha U., Qalyobia, Egypt.

2 Prof. Emeritus of Ag. Eng., Fac. of Ag., Benha U., Qalyobia, Egypt.

3 Assist. Prof. of Ag. Eng., Fac. of Ag., Benha U., Qalyobia, Egypt.

4 Prof. of Ag. Eng., Fac. of Ag., Benha U., Qalyobia, Egypt.

Abstract

The objective of this study was to analyze the hydraulic performance of low-pressure drip irrigation system on emitter discharge, coefficient of variation, emission uniformity and friction losses. Therefore, a laboratory and field experiments were conducted to assess the hydraulic performance of three drip lateral types [Gr (4 Lh-1/30cm), Flat-tape (2 Lh-1/30cm) and T-tape (10 Lh-1/m)]. Discharge rates were measured at four different low- pressure heads (0.4, 0.6, 0.8 and 1 bar). Results show that the discharge of emitter is increased with increasing pressure and decreasing of lateral length, which implied that the combination between pressure and lateral length has a direct impact on the emitter's hydraulic performance of low- pressure drip irrigation systems. Consequently, the low operating pressure combined with short laterals resulted in the emitters produce the desired discharge with good performance parameters. As well as, high emission uniformity coefficient (90-97%) was observed at 30 and 40 m lengths for all lateral types and all operating pressure. For the types of Flat-tape and T-tape with a length of 50, 40, and 30m, all values of friction losses were acceptable at different operating pressures. The use of a low operating pressure less than1 bar indicated that it was an excellent operation condition in spite of that it was greater than the operating pressure in the range recommended by this dripper manufacturer. Furthermore, the use of low-pressure drip irrigation systems using the combination of low pressure and short laterals would reduce the energy requirements of operating smallholdings irrigation system.

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Main Subjects

References

Almeida, ACDS, Almeida, CDDe, Botrel, T.A and Frizzone, J.A. (2016) ‘ressure compensating microsprinklers using microtube as a flow controller’. Engenharia Agrícola, 36(1):36–45.
Ame, M. A., Shouhua, C. and Khailah E. Y. (2022) ‘Optimal selection of lateral in drip irrigation system with pressure compensating emitters’. Ain Shams Engineering Journal 13 (2022) 101715.
Amound, A. L. (1995) ‘Significance of energy losses due to emitter connections in trickle irrigation lines’. Journal of Agricultural Engineering Research, 60, 1–5.
ASAE (2003) ‘Field Evaluation of Micro Irrigation Systems EP458’; American Society of Agricultural Engineers: St. Joseph, MI, USA, pp. 760–765.
ASAE (2006) ‘ASAE Standards EP-458: Field evaluation of microirrigation systems’, 8755-1187, American Society of Agricultural and Biological Engineers, St. Joseph, Michigan.
Awe, G.O. and Ogedengbe, K. (2011) ‘Performance evaluation of bamboo (Bambusa vulgaris Schrad)-pipe and medi-emitter in a gravity-flow drip irrigation system’. Int. J. Agric. For., 1(1): 9-13.
Bush, A., Elamin, A.M., Ali, A.B. and Hong, L. (2016) ‘Effect of different operating pressures on the hydraulic performance of drip irrigation system in Khartoum State conditions’. J Environ Agric Sci, 6:64–8.
Celik, H.K., Karayel, D., Lupeanu, M.E., Rennie, A.E.W. and Akinci, I. (2015) ‘Determination of head losses in drip irrigation laterals with cylindrical in-line type emitters through CFD analysis’. Bulg. J. Agric. Sci. 21, 703–710.
Chamba, D., Zubelzu, S. and Juana, L. (2019) ‘Energy, cost and uniformity in the design of drip irrigation systems’. Biosyst. Eng. 178, 200–218.
Derbala, A., Elmetwalli, A., Attafy, T., Abdelglil A. and Amer, M. (2023) ‘Performance evaluation of drip irrigation system using two types of irrigation water’. Misr J. Ag. Eng., 34 (2): 801 – 828. 10.21608/MJAE.2023.216125.1105
Keller, J., and Karmeli, D. (1975) ‘Trickle irrigation design parameters’. ASAE Trans, 17 (4):678-684.
Li, J. (2020) ‘Microirrigation in China: History, current situation and future’. Irrig Drain; 69(S2):88–96.
Lili, Z., Peiling Y., Shumei R. and Dan W. (2013) ‘Numerical simulation and optimization of micro-irrigation flow regulators based on FSI. Irrig Drain., 62(5):624–39.
Manisha, I., Sinha, J., and Tripathi, M.P. (2015) ‘Studies on hydraulic performance of drip irrigation under operating pressure’. Int. J. Appl. Eng. Tech., 5(2): 1-6.
Martinez, C. G., Wu, C. R., Fajardo, A. L. and Ella, V. B. (2022) ‘Hydraulic performance evaluation of Low-cost gravity-fed drip irrigation systems under constant head conditions’.  Earth and Environmental Science 1038 (012005) doi:10.1088/1755-1315/1038/1/012005
Mostafa, H. and Thörmann, H-H. (2013) ‘On-farm evaluation of low-pressure drip irrigation system for Smallholder’. Soil & Water Res., 8 (2): 87–95. DOI:10.17221/29/2012-SWR
Narayanamoorthy, A., Bhattarai, M. and Jothi, P. (2018) ‘An assessment of the economic impact of drip irrigation in vegetable production in India. Agricultural Economics Research Review, 31 (1), 105-112. DOI: 10.5958/0974-0279.2018.00010.1
Onwuegbunam, D.O., Nayan, G.Z., Olayanju, T.A. and Onwuegbunam, N.E. (2020) ‘Effects of operating pressure, lateral length and irrigation period on the fuel consumption of a centrifugal pump in a pressurized drip irrigation system’. Earth Environ Sci; 445(1):012024. doi: https://doi.org/10.1088/1755-1315/445/1/012024.
Perea, H., Enciso-Medina, J., Singh, V.P., Dutta, D.P. and Lesikar, B.J. (2013) ‘Statistical analysis of non-pressure-compensating and pressure-compensating drip emitters’. J Irrig Drain Eng, 139(12):986–94.
Pragna, G., Kumar, G.M. and Shankar, M.S. (2017) ‘Hydraulic performance evaluation of drip system by developing relationship between discharge and pressure’. Int. J. Pure Appl., 5, 758–765.
Rashad, M.A. (2013) ‘Development a program to optimize design of low head bubbler irrigation’. Misr J Agricultural Eng., 30(3):765–84.
Sarker, K.K., Akbar, H., Khandakar, F. M., Kumar, S., Akter, F., Rannu, R., Moniruzzaman, M., Karim, N. N. and Timsina, J. (2019) ‘Development and evaluation of an emitter with a Low-pressure drip-irrigation system for sustainable Eggplant production’. AgriEngineering, 1: 376-390
Sharma, P. (2013) ‘Hydraulic performance of drip emitters under field condition’. Journal of Agriculture and Veterinary Science. 2(1):15-20.
Sharu, E.H. (2022) ‘Hydraulic performance analysis of drip irrigation system using pressure compensated dripper at low operating pressure’. Adv Agri Food Res J. 3(1): a0000225. https://doi.org/10.36877/aafrj.a0000225
Sharu, E. H. and Razak, M. A. (2020) ‘Hydraulic performance and modelling of pressurized drip irrigation system’. Water 12, no. 8: 2295. https://doi.org/10.3390/w12082295
Yurdem, H., Demir, V. and Mancuhan, A. (2015) ‘Development of a simplified model for predicting the optimum lengths of drip irrigation laterals with coextruded cylindrical in-line emitters’. Biosyst Eng., 137:22–35.

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