Persistent Link:
http://hdl.handle.net/10150/277230
Title:
Pneumatic harvesting of jojoba seeds
Author:
Yazici, Erol, 1961-
Issue Date:
1989
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:
A pneumatic harvesting method for jojoba seed was investigated. By constructing a stationary experimental unit, the motion of jojoba seeds and stones, which were close in size and weight to seeds, were examined under the effect of positive, negative, and a combination of both pressures. It was determined that there was a reasonable difference in the motion depending upon test conditions and head design. A vacuum head was designed based on the observations and data obtained from the experiments. Using this head it was possible to pick up jojoba seed without picking up stones. A nonstationary unit was constructed to examine the effect of ground speed on picking efficiency. Results showed that a cleaner harvest using a normal ground speed can be obtained with the new head than with conventional equipment. A blowing head was added to windrow seeds and increase the capacity of the machine. It was determined that when the two heads were used together harvesting field capacity increased, however reduced efficiency was found.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Jojoba -- Harvesting.; Pneumatic machinery.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Agricultural Engineering
Degree Grantor:
University of Arizona
Advisor:
Coates, Wayne E.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titlePneumatic harvesting of jojoba seedsen_US
dc.creatorYazici, Erol, 1961-en_US
dc.contributor.authorYazici, Erol, 1961-en_US
dc.date.issued1989en_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.abstractA pneumatic harvesting method for jojoba seed was investigated. By constructing a stationary experimental unit, the motion of jojoba seeds and stones, which were close in size and weight to seeds, were examined under the effect of positive, negative, and a combination of both pressures. It was determined that there was a reasonable difference in the motion depending upon test conditions and head design. A vacuum head was designed based on the observations and data obtained from the experiments. Using this head it was possible to pick up jojoba seed without picking up stones. A nonstationary unit was constructed to examine the effect of ground speed on picking efficiency. Results showed that a cleaner harvest using a normal ground speed can be obtained with the new head than with conventional equipment. A blowing head was added to windrow seeds and increase the capacity of the machine. It was determined that when the two heads were used together harvesting field capacity increased, however reduced efficiency was found.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectJojoba -- Harvesting.en_US
dc.subjectPneumatic machinery.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineAgricultural Engineeringen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorCoates, Wayne E.en_US
dc.identifier.proquest1339239en_US
dc.identifier.oclc24341305en_US
dc.identifier.bibrecord.b17854039en_US
dc.identifier.bibrecord.b17854027en_US
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