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343521

HYDRAULIC PERFORMANCE OF LOW PRESSURE DRIP IRRIGATION APPROPRIATE FOR SMALLHOLDINGS

Article

Last updated: 26 Dec 2024

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Subjects

-

Tags

Agricultural Irrigation and Drainage Engineering

Abstract

The objective of this study was to analyze the hydraulic performance of low-pressure drip irrigation system on emitter discharge, coefficient of variation, emission uniformity and friction losses. Therefore, a laboratory and field experiments were conducted to assess the hydraulic performance of three drip lateral types [Gr (4 Lh-1/30cm), Flat-tape (2 Lh-1/30cm) and T-tape (10 Lh-1/m)]. Discharge rates were measured at four different low- pressure heads (0.4, 0.6, 0.8 and 1 bar). Results show that the discharge of emitter is increased with increasing pressure and decreasing of lateral length, which implied that the combination between pressure and lateral length has a direct impact on the emitter's hydraulic performance of low- pressure drip irrigation systems. Consequently, the low operating pressure combined with short laterals resulted in the emitters produce the desired discharge with good performance parameters. As well as, high emission uniformity coefficient (90-97%) was observed at 30 and 40 m lengths for all lateral types and all operating pressure. For the types of Flat-tape and T-tape with a length of 50, 40, and 30m, all values of friction losses were acceptable at different operating pressures. The use of a low operating pressure less than1 bar indicated that it was an excellent operation condition in spite of that it was greater than the operating pressure in the range recommended by this dripper manufacturer. Furthermore, the use of low-pressure drip irrigation systems using the combination of low pressure and short laterals would reduce the energy requirements of operating smallholdings irrigation system.

DOI

10.21608/mjae.2024.270632.1132

Keywords

Drip irrigation, Hydraulic Performance, Smallholdings, distribution uniformity

Authors

First Name

Mohamed

Last Name

El-Mansy

MiddleName

-

Affiliation

Postgraduate student, Fac. of Ag., Benha U., Qalyobia, Egypt.

Email

m.elmansy@fagr.bu.edu.eg

City

-

Orcid

-

First Name

Mohamed

Last Name

El Ansary

MiddleName

-

Affiliation

Prof. Emeritus of Ag. Eng., Fac. of Ag., Benha U., Qalyobia, Egypt.

Email

m_ansary@fagr.bu.edu.eg

City

-

Orcid

-

First Name

Abousrie

Last Name

Farag

MiddleName

-

Affiliation

Assist. Prof. of Ag. Eng., Fac. of Ag., Benha U., Qalyobia, Egypt.

Email

abousrie.farag@fagr.bu.edu.eg

City

-

Orcid

-

First Name

Harby

Last Name

Mostafa

MiddleName

M. S.

Affiliation

Prof. of Ag. Eng., Fac. of Ag., Benha U., Qalyobia, Egypt.

Email

harby.mostafa@fagr.bu.edu.eg

City

-

Orcid

0000-0001-6034-5965

Volume

41

Article Issue

2

Related Issue

46930

Issue Date

2024-04-01

Receive Date

2024-02-16

Publish Date

2024-04-01

Page Start

155

Page End

166

Print ISSN

1687-384X

Online ISSN

2636-3062

Article File

MJAE_Volume 41_Issue 2_Pages 155-166.pdf

PDF . 732.2kB

Link

https://mjae.journals.ekb.eg/article_343521.html

Detail API

https://mjae.journals.ekb.eg/service?article_code=343521

Order

2

Type

Original Article

Type Code

1,326

Publication Type

Journal

Publication Title

Misr Journal of Agricultural Engineering

Publication Link

https://mjae.journals.ekb.eg/

MainTitle

HYDRAULIC PERFORMANCE OF LOW PRESSURE DRIP IRRIGATION APPROPRIATE FOR SMALLHOLDINGS

Details

Type

Article

Created At

26 Dec 2024