DEVELOPMENT A COMPUTER MODEL TO DETERMINE THE OPTIMUM LATERAL LENGTH OF MICROIRRIGATION SYSTEMS
Khedr, A. F.; Rashad, M. A.; ElMasry, G. M.; El-Sayed, A. S.; Hegazi M. M.;
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.32
Other data
| Title | DEVELOPMENT A COMPUTER MODEL TO DETERMINE THE OPTIMUM LATERAL LENGTH OF MICROIRRIGATION SYSTEMS | Authors | Khedr, A. F.; Rashad, M. A.; ElMasry, G. M.; El-Sayed, A. S.; Hegazi M. M. | Issue Date | 2015 | Journal | Misr Journal of Agricultural Engineering | Volume | 32 | Issue | 2 | Start page | 643 | End page | 660 | ISSN | 2636-3062 | DOI | 10.21608/mjae.2015.98614 |
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| File | Description | Size | Format | Existing users please Login |
|---|---|---|---|---|
| MJAE-Volume 32-Issue 2- Page 643-660.pdf | 761.42 kB | Adobe PDF | Request a copy |
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