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Design of a laboratory conical stripper-harvester for rice / Jaime Q. Dilidili.

By:

Dilidili, Jaime Q [author]

Contributor(s):

del Rosario, Carlos R [adviser]

Material type: Text

TextLanguage: English Publication details: Los Baños, Laguna : University of the Philippines, 1983.Description: 137 pages : illustrations ; 28 cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Subject(s):

DDC classification:

631.3 D57 1983

Online resources:

Click here to view thesis abstract and table of contents

Abstract: DILIDILI, JAIME Q., University of the Philippines at Los Banos, May, 1983, Design of a Laboratory Conical Stripper-Harvester for Rice. Major Professor: Dr. Carlos R. del Rosario. A two-row laboratory conical stripper-harvester for rice was designed and fabricated in the College of Engineering and Agro-Industrial Technology to evaluate the machine performance and hence establish the optimum combination of the operating parameters involved, namely: concave clearance C, rotor rpm N, and forward speed V, that would maximize grain collection. The laboratory set-up consisted of five main components: the trolley, the plant feeder composed of plant guide and auger, the conical rotor which is the threshing component, the concave, and the collection pan. Results show that maximum grain collection of 97.52, j.e. total grain loss of no more than 2.5%, can be obtained when the rice stripper is operated at the following level of the factor variables: (1) forward speed of 1 km per hr, rotor rpm of 703, and concave clearance of 4.0 mn; (2) forward speed of 2 km per hr, rotor rpm of 752, and concave clearance of 3.75 mm; and (3) forward speed of 3 kp per hr, rotor rpm of 736, and concave clearance of 3.40 mm. The predicted stripping efficiency on the above values were 98.875, 98.458 and 97.802%, consecutively. The future field prototype would have a potential capacity of 0.0432 - 0.1296 ha per hr (0.3456 - 1,0358 ha per day). It would take 8 - 24 hrs to harvest a hectare. Three men will be required to operate the stripper and will have a labor requirement of 23 - 69 man-hour per ha. The rice stripper compared favorably with any known method of rice harvesting.

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Holdings ( 1 )
Title notes ( 4 )

Holdings
Item type	Current library	Call number	Materials specified	URL	Status	Notes	Date due	Barcode
Theses / Manuscripts	Ladislao N. Diwa Memorial Library Theses Section	631.3 D57 1983 (Browse shelf(Opens below))		Link to resource	Room use only	T-1098		00002128

Thesis (M.S. - - Agricultual Engineering) University of the Philippines, College, Laguna.

Includes bibliographical references.

DILIDILI, JAIME Q., University of the Philippines at Los Banos, May, 1983, Design of a Laboratory Conical Stripper-Harvester for Rice. Major Professor: Dr. Carlos R. del Rosario.

A two-row laboratory conical stripper-harvester for rice was designed and fabricated in the College of Engineering and Agro-Industrial Technology to evaluate the machine performance and hence establish the optimum combination of the operating parameters involved, namely: concave clearance C, rotor rpm N, and forward speed V, that would maximize grain collection.

The laboratory set-up consisted of five main components: the trolley, the plant feeder composed of plant guide and auger, the conical rotor which is the threshing component, the concave, and the collection pan.

Results show that maximum grain collection of 97.52, j.e. total grain loss of no more than 2.5%, can be obtained when the rice stripper is operated at the following level of the factor variables: (1) forward speed of 1 km per hr, rotor rpm of 703, and concave clearance of 4.0 mn; (2) forward speed of 2 km per hr, rotor rpm of 752, and
concave clearance of 3.75 mm; and (3) forward speed of 3 kp per hr, rotor rpm of 736, and concave clearance of 3.40 mm.

The predicted stripping efficiency on the above values were 98.875, 98.458 and 97.802%, consecutively. The future field prototype would have a potential capacity of 0.0432 - 0.1296 ha per hr (0.3456 - 1,0358 ha per day). It would take 8 - 24 hrs to harvest a hectare. Three men will be required to operate the stripper and will have a labor requirement of 23 - 69 man-hour per ha.

The rice stripper compared favorably with any known method of rice harvesting.

Submitted to the University Library October 04, 1983 T-1098