NDLI: Characterization of the microtube emitters used in a novel micro-sprinkler

Content Provider	Springer Nature Link
Author	Almeida, Ceres Duarte Guedes Cabral Botrel, Tarlei Arriel Smith, Rod J.
Copyright Year	2008
Abstract	The microtube is a simple and cheap emitter that was widely used throughout the world in the early days of drip irrigation. Its length can be adjusted according to the pressure distribution along the lateral line and the discharge from the microtube can be adjusted by its length. This not only counters the pressure loss due to pipe friction but also makes it suitable for undulating and hilly conditions, where pressure in the lateral line varies considerably according to the differences in elevation. This is the major problem facing the designer, i.e., emitter flow changes as the acting pressure head changes. In this study, a novel micro-sprinkler system is proposed that uses microtube as the emitter and where the length of the microtube can be varied in response to pressure changes along the lateral to give uniformity of emitter discharges. The objective of this work is to develop and validate empirical and semi-theoretical equations for the emitter hydraulics. Laboratory testing of two microtube emitters of different diameter over a range of pressures and discharges was used in the development of the equations relating pressure and discharge, and pressure and length for these emitters. The equations proposed will be used in the design of the micro-sprinkler system, to determine the length of microtube required to give the nominal discharge for any given pressure. The semi-theoretical approach underlined the importance of accurate measurements of the microtube diameter and the uncertainty in the estimation of the friction factor for these tubes.
Starting Page	209
Ending Page	214
Page Count	6
File Format	PDF
ISSN	03427188
Journal	Irrigation Science
Volume Number	27
Issue Number	3
e-ISSN	14321319
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-10-15
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Climate Change Sustainable Development Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution Environment Agriculture
Content Type	Text
Resource Type	Article
Subject	Agronomy and Crop Science Soil Science Water Science and Technology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Hydraulics of microtube emitters: a dimensional analysis approach

Biofilm development in micro-irrigation emitters for wastewater reuse

Assessing whole-field sprinkler irrigation application uniformity

Flow rate sprinkler development for site-specific irrigation

Sprinkler evaporation losses in alfalfa during solid-set sprinkler irrigation in semiarid areas

Five methods to interpret field measurements of energy fluxes over a micro-sprinkler-irrigated mango orchard

Adoption of site-specific variable rate sprinkler irrigation systems

On-demand pressurized water distribution system impacts on sprinkler network design and performance

Kinetic energy in sprinkler irrigation: different sources of drop diameter and velocity

Characterization of the microtube emitters used in a novel micro-sprinkler

Similar Documents

Hydraulics of microtube emitters: a dimensional analysis approach

Biofilm development in micro-irrigation emitters for wastewater reuse

Assessing whole-field sprinkler irrigation application uniformity

Flow rate sprinkler development for site-specific irrigation

Sprinkler evaporation losses in alfalfa during solid-set sprinkler irrigation in semiarid areas

Five methods to interpret field measurements of energy fluxes over a micro-sprinkler-irrigated mango orchard

Adoption of site-specific variable rate sprinkler irrigation systems

On-demand pressurized water distribution system impacts on sprinkler network design and performance

Kinetic energy in sprinkler irrigation: different sources of drop diameter and velocity

Characterization of the microtube emitters used in a novel micro-sprinkler