DEVELOPMENT A COMPUTER MODEL TO DETERMINE THE OPTIMUM LATERAL LENGTH OF MICROIRRIGATION SYSTEMS
Khedr, A., Rashad, M., ElMasry, G., El-Sayed, A., Hegazi, M. (2015). DEVELOPMENT A COMPUTER MODEL TO DETERMINE THE OPTIMUM LATERAL LENGTH OF MICROIRRIGATION SYSTEMS. EKB Journal Management System, 32(2), 643-660. doi: 10.21608/mjae.2015.98614
A. F. Khedr; M. A. Rashad; G. M. ElMasry; A. S. El-Sayed; M. M. Hegazi. "DEVELOPMENT A COMPUTER MODEL TO DETERMINE THE OPTIMUM LATERAL LENGTH OF MICROIRRIGATION SYSTEMS". EKB Journal Management System, 32, 2, 2015, 643-660. doi: 10.21608/mjae.2015.98614
Khedr, A., Rashad, M., ElMasry, G., El-Sayed, A., Hegazi, M. (2015). 'DEVELOPMENT A COMPUTER MODEL TO DETERMINE THE OPTIMUM LATERAL LENGTH OF MICROIRRIGATION SYSTEMS', EKB Journal Management System, 32(2), pp. 643-660. doi: 10.21608/mjae.2015.98614
Khedr, A., Rashad, M., ElMasry, G., El-Sayed, A., Hegazi, M. DEVELOPMENT A COMPUTER MODEL TO DETERMINE THE OPTIMUM LATERAL LENGTH OF MICROIRRIGATION SYSTEMS. EKB Journal Management System, 2015; 32(2): 643-660. doi: 10.21608/mjae.2015.98614

DEVELOPMENT A COMPUTER MODEL TO DETERMINE THE OPTIMUM LATERAL LENGTH OF MICROIRRIGATION SYSTEMS

Misr Journal of Agricultural Engineering
Article 15, Volume 32, Issue 2, April 2015, Page 643-660  XML PDF (761.42 K)
Document Type: Original Article
DOI: 10.21608/mjae.2015.98614
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Authors
A. F. Khedr1; M. A. Rashad2; G. M. ElMasry3; A. S. El-Sayed4; M. M. Hegazi5
1Assistant lecturer, of Agric. Eng., Agric. Eng. Dept., Fac. of Agric., Suez Canal Univ., Egypt.
2lecturer, of Agric. Eng., Agric. Eng. Dept., Fac. of Agric., Suez Canal Univ., Egypt.
3Assistant Prof., Associate Prof. and Prof. of Agric. Eng., Agric. Eng. Dept., Fac. of Agric., Suez Canal Univ., Egypt.
4Prof. of Agric. Eng., Agric. Eng. Dept., Fac. of Agric., Suez Canal Univ., Egypt.
5Prof. of Agric. Eng., Agric. Eng. Dept., Fac. of Agric., Ain Shams Univ., Egypt.
Abstract
This study was carried out for developing a computer model to determine the optimum length of lateral in microirrigation systems. The model was designed to obtain a flow variation (qvar) of 10, 15 and 20 % and/or coefficient of uniformity (CU) greater than 85 %. The model was then validated by a hydraulic experiment which measure CU of five emitters. The examined emitters were in-line (Em3), on-line (Em1, Em2; Em4) and Em5 was  microtube (a 3.80 mm inside diameter with a length of 50 cm), at four lateral lengths, under seven operating pressures. The theoretical model and the validation experiment were compared indicating that there was a strong relationship with coefficient of determination (R2) more than 0.95 between the measured and predicted CU for Em1, Em2 and Em3, while this relationship was decreased with R2 about 0.80 for Em4 and Em5 at different treatments.
Keywords
Computer modeling; Lateral; Pressure; Uniformity; Microirrigation system
References

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