PERFORMANCE EVALUATION OF FLOPPY SPRINKLERS
El-Sayed , A. S.; Hegazi M. M.; El-Sheikh* , I. H.; Khader, A. F;
Abstract
The aim of this research was to evaluate the performance of two types of
floppy sprinklers, original type and local type to determine optimum
operating conditions that achieve high application efficiency. The
coefficient of uniformity (CU), distribution uniformity (DU) and
application efficiency of low quarter (AELQ) were evaluated under
different levels of operating pressure and riser height. It was concluded
that the operating conditions that achieved high coefficient of uniformity,
distribution uniformity and application efficiency of low quarter were
operating pressure of 200 kPa and riser height of 2.0 m for both types of
floppy sprinklers. The corresponding values of CU, DU and AELQ were
70.65, 52.59 and 44.33 % for original and 66.67, 44.31 and 37.46 % for
local, respectively. Also, to achieve high percentage of overlap simulation
model was used, it appeared that the spacing between sprinklers should
be higher than or equal 50 % of wetted diameter to avoid water lose and
minimize irrigation system cost.
floppy sprinklers, original type and local type to determine optimum
operating conditions that achieve high application efficiency. The
coefficient of uniformity (CU), distribution uniformity (DU) and
application efficiency of low quarter (AELQ) were evaluated under
different levels of operating pressure and riser height. It was concluded
that the operating conditions that achieved high coefficient of uniformity,
distribution uniformity and application efficiency of low quarter were
operating pressure of 200 kPa and riser height of 2.0 m for both types of
floppy sprinklers. The corresponding values of CU, DU and AELQ were
70.65, 52.59 and 44.33 % for original and 66.67, 44.31 and 37.46 % for
local, respectively. Also, to achieve high percentage of overlap simulation
model was used, it appeared that the spacing between sprinklers should
be higher than or equal 50 % of wetted diameter to avoid water lose and
minimize irrigation system cost.
Other data
| Title | PERFORMANCE EVALUATION OF FLOPPY SPRINKLERS | Authors | El-Sayed , A. S.; Hegazi M. M. ; El-Sheikh* , I. H.; Khader, A. F | Issue Date | 2009 | Journal | Misr J. Ag. Eng. | Volume | 26 | Issue | 2 | Start page | 766 | End page | 782 |
Attached Files
| File | Description | Size | Format | Existing users please Login |
|---|---|---|---|---|
| MJAE-Volume 26-Issue 2- Page 766-782.pdf | 364.79 kB | Adobe PDF | Request a copy |
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