Hydraulic, water and energy use evaluation of subsurface trickle irrigation system

Persistent Link:
http://hdl.handle.net/10150/278073
Title:
Hydraulic, water and energy use evaluation of subsurface trickle irrigation system
Author:
Copeland, Russell Dean, 1963-
Issue Date:
1992
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
The hydraulics, water use, and energy use of a two year old subsurface drip irrigation system installed at the Maricopa Agricultural Center in southern Arizona were examined to evaluate the performance of typical subsurface drip irrigation systems. Although the pressure distribution was better than expected due to the effect of the looped network, the average discharge rate of the drip tape decreased by 20% as reflected by the change in the discharge coefficient from 0.45 to 0.36 over two years and emitter plugging resulted in the statistical uniformity being only 64.6%. Water use was higher than expected at 50.76 and 41 inches during the two years of use. The total annual energy requirements for the system including direct, 7593 megajoules/hectare/year, and indirect, 12965 megajoules/hectare/year, inputs was 24318 megajoules/hectare/year.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Engineering, Agricultural.; Engineering, Mechanical.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College
Degree Grantor:
University of Arizona
Advisor:
Yitayew, Muluneh

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleHydraulic, water and energy use evaluation of subsurface trickle irrigation systemen_US
dc.creatorCopeland, Russell Dean, 1963-en_US
dc.contributor.authorCopeland, Russell Dean, 1963-en_US
dc.date.issued1992en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThe hydraulics, water use, and energy use of a two year old subsurface drip irrigation system installed at the Maricopa Agricultural Center in southern Arizona were examined to evaluate the performance of typical subsurface drip irrigation systems. Although the pressure distribution was better than expected due to the effect of the looped network, the average discharge rate of the drip tape decreased by 20% as reflected by the change in the discharge coefficient from 0.45 to 0.36 over two years and emitter plugging resulted in the statistical uniformity being only 64.6%. Water use was higher than expected at 50.76 and 41 inches during the two years of use. The total annual energy requirements for the system including direct, 7593 megajoules/hectare/year, and indirect, 12965 megajoules/hectare/year, inputs was 24318 megajoules/hectare/year.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectEngineering, Agricultural.en_US
dc.subjectEngineering, Mechanical.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorYitayew, Mulunehen_US
dc.identifier.proquest1347574en_US
dc.identifier.bibrecord.b27474641en_US
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