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dc.contributor.authorJoshi, Abhijit
dc.contributor.authorZimoch, Pawel Jerzy
dc.contributor.authorTixier, Eliott
dc.contributor.authorHosoi, Anette E
dc.contributor.authorWinter, Amos G.
dc.date.accessioned2018-12-18T14:10:11Z
dc.date.available2018-12-18T14:10:11Z
dc.date.issued2013-08
dc.identifier.isbn978-0-7918-5592-8
dc.identifier.urihttp://hdl.handle.net/1721.1/119670
dc.description.abstractWe use nonlinear behavior of thin-walled structures - an approach inspired by biological systems (the human airway, for ex- ample) - to address one of the most important problems facing subsistence farmers in developing countries: lack of access to inexpensive, water-efficient irrigation systems. An effective way of delivering water to crops is through a network of emitters, with up to 85% of the water delivered being absorbed by plants. How- ever, of the 140 million hectares of cropped land in India alone, only 61 million are irrigated and just 5 million through drip irrigation. This is, in part, due to the relatively high cost of drip irrigation. The main cost comes from the requirement to pump the water at relatively high pressure ( > 1 bar), to minimize the effect of uneven terrain and viscous losses in the network, and to en- sure that each plant receives the same amount of water. Using a prototype, we demonstrate that the pressure required to drive the system can be reduced significantly by using thin-walled structures to design emitters with completely passive self-regulation that activates at approximately 0.1bar. This reduction in driving pressure could help bring the price of drip irrigation systems from several thousand dollars to approximately $300, which is within reach of small-scale farmers. Using order-of-magnitude calculations, we show that due to increased sensitivity of the proposed design to the applied pressure differential, a pressure compensating valve for drip irrigation could be built without using costly silicone membranes.en_US
dc.description.sponsorshipJain Irrigation Systems Ltd.en_US
dc.description.sponsorshipMassachusetts Institute of Technology. Tata Center for Technology and Designen_US
dc.description.sponsorshipMassachusetts Institute of Technology. Department of Mechanical Engineeringen_US
dc.description.sponsorshipRockefeller Foundationen_US
dc.publisherASME Internationalen_US
dc.relation.isversionofhttp://dx.doi.org/10.1115/DETC2013-12495en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceASMEen_US
dc.titleBio-Inspired, Low-Cost, Self-Regulating Valves for Drip Irrigation in Developing Countriesen_US
dc.typeArticleen_US
dc.identifier.citationZimoch, Pawel J., Eliott Tixier, Abhijit Joshi, A. E. Hosoi, and Amos G. Winter. “Bio-Inspired, Low-Cost, Self-Regulating Valves for Drip Irrigation in Developing Countries.” Volume 5: 25th International Conference on Design Theory and Methodology; ASME 2013 Power Transmission and Gearing Conference (August 4, 2013).en_US
dc.contributor.departmentMIT-SUTD Collaborationen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mathematicsen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mechanical Engineeringen_US
dc.contributor.mitauthorZimoch, Pawel Jerzy
dc.contributor.mitauthorTixier, Eliott
dc.contributor.mitauthorHosoi, Anette E
dc.contributor.mitauthorWinter, Amos G.
dc.relation.journalVolume 5: 25th International Conference on Design Theory and Methodology; ASME 2013 Power Transmission and Gearing Conferenceen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/ConferencePaperen_US
eprint.statushttp://purl.org/eprint/status/NonPeerRevieweden_US
dc.date.updated2018-12-04T18:38:41Z
dspace.orderedauthorsZimoch, Pawel J.; Tixier, Eliott; Joshi, Abhijit; Hosoi, A. E.; Winter, Amos G.en_US
dspace.embargo.termsNen_US
dc.identifier.orcidhttps://orcid.org/0000-0001-7000-4064
dc.identifier.orcidhttps://orcid.org/0000-0003-4940-7496
dc.identifier.orcidhttps://orcid.org/0000-0002-4151-0889
mit.licensePUBLISHER_POLICYen_US


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