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Determination of Hydraulic Characteristics of Porous Pipe Irrigation Laterals and Water Distribution Pattern in Sandy Soil


Citation

Islam, Md Fakrul (1999) Determination of Hydraulic Characteristics of Porous Pipe Irrigation Laterals and Water Distribution Pattern in Sandy Soil. Masters thesis, Universiti Putra Malaysia.

Abstract / Synopsis

Irrigation systems are well known for their low efficiencies. Microirrigation system is becoming popular even in humid areas because of the many advantages it offers. Microirrigation is really the first irrigation method that can potentially maximize productivity while conserving soil, water and fertilizer resources and simultaneously protecting the environment. Since a micro irrigation system can achieve very high application efficiency, it should be further explored even for supplemental irrigation in a high-rainfall tropical country like Malaysia, with annual rainfall exceeding 2500mm. Porous pipe is useful both for surface and subsurface micro irrigation systems and it can be used in a variety of ways to meet any irrigation need. However very little information is available about the discharge uniformity, operating characteristics and the moisture distribution pattern of porous pipe irrigation laterals. This research work on the hydraulics of two types of porous pipe was carried out to determine such performance criteria as the pressure-discharge relationship, pressure headloss, friction factor Reynolds number relationship and water dispersion in the soil. The water distribution pattern was observed in a soil box. Several lengths of imported porous pipes were subjected to various upstream pressure inputs to determine the average discharge along the lateral and the associated pressure losses.


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Additional Metadata

Item Type: Thesis (Masters)
Subject: Sandy soils
Subject: Hydraulics
Subject: Irrigation engineering - Malaysia
Call Number: FK 1999 35
Chairman Supervisor: Associate Professor Ir. Dr. Mohd Amin Bin Mohd Soom
Divisions: Faculty of Engineering
Depositing User: kmportal
Date Deposited: 30 Mar 2011 02:49
Last Modified: 10 Aug 2011 07:05
URI: http://psasir.upm.edu.my/id/eprint/10368
Statistic Details: View Download Statistic

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