A STUDY ON AN APPROPRIATE DESIGN FOR BUBBLER IRIUSATION SYSTEM
Ahmed Maher El-Lithy;
Abstract
The aims of this study is to get the greatest lateral line length
with the best uniformity distribution, through extending it into multi stages with different emitter sizes on each stages.
The main results in this study are summarized in the following:
1- Laboratory experiments.
(1) The effect of pressure head and tube diameter on discharge.
- The discharge of tube increased from "19.59" to " 74.35 Uh" by increasing pressure head from "0.025" to" 1 bar'' at tube diameter of "3 mm". The discharge increased from "27.97" to "54.07 Uh" by increasing tube -diameter from "3" to "4 mm" at pressure head of "0.25 bar".
(21 The effect of pressure and diameter of nozzle on discharge.
- The relationships between nozzle discharge (q) and pressure head (h) at different nozzle-diameters were conducted in the following equation: q = khx where k and x are constant.
(31 The effect of pressure and type of screw emitter on discharge.
- The discharge of screw emitter decreased by increasing number of screw thread teeth and screw length into tube at all pressure heads. And the discharge increased by increasing pressure heads.
(4) The effect of valve-emitter angle on discharge.
- It was noticed that there was a wide variation of discharge trying to adjust valves as emitters in field. Thus this part of experiment was cancelled.
with the best uniformity distribution, through extending it into multi stages with different emitter sizes on each stages.
The main results in this study are summarized in the following:
1- Laboratory experiments.
(1) The effect of pressure head and tube diameter on discharge.
- The discharge of tube increased from "19.59" to " 74.35 Uh" by increasing pressure head from "0.025" to" 1 bar'' at tube diameter of "3 mm". The discharge increased from "27.97" to "54.07 Uh" by increasing tube -diameter from "3" to "4 mm" at pressure head of "0.25 bar".
(21 The effect of pressure and diameter of nozzle on discharge.
- The relationships between nozzle discharge (q) and pressure head (h) at different nozzle-diameters were conducted in the following equation: q = khx where k and x are constant.
(31 The effect of pressure and type of screw emitter on discharge.
- The discharge of screw emitter decreased by increasing number of screw thread teeth and screw length into tube at all pressure heads. And the discharge increased by increasing pressure heads.
(4) The effect of valve-emitter angle on discharge.
- It was noticed that there was a wide variation of discharge trying to adjust valves as emitters in field. Thus this part of experiment was cancelled.
Other data
| Title | A STUDY ON AN APPROPRIATE DESIGN FOR BUBBLER IRIUSATION SYSTEM | Other Titles | دراسة عن تصميم مناسب لنظام الرى الفوار | Authors | Ahmed Maher El-Lithy | Issue Date | 1998 |
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