Injecting air by different devices in hydraulic emitters line / [electronic resource].

Year book of Misr Society of Agricultural Engineering : The 20 th. Annual Conference of the Misr Society of Agricultural Engineering "Agricultural Engineering and Country Challenges"

Includes references.

The aim of this research was to evaluate the impact of air injection
through subsurface drip irrigation system on the hydraulic performance
of the system. Laboratory experiments were carried out at the National
Irrigation Laboratory of Agricultural Engineering Research Institute
(AENRJ), Dokki, Giza. Two types ofirrigation systems were used (porous
pipe and built-in emitters). but through the experimental steps. porous
pipe was ignored because it was unacceptable in all test procedures. In
other steps of the experiment, compressor was used to inject air through
irrigation system. From step] and step2, the selected emitters (built-in)
and slecteded injector (compressor) were used to study the effect of
injecting air through irrigation system. Data indicated that injected air
through built-in emitters by compressor in the last third ofirrigation time
lead to keep the system performance acceptable through the measuring of
(cv, q"ar, and Eu) % to give indicator about system performance.

Summary in Arabic