Design and Fabrication of an Agricultural Spraying Attachment for an Autonomous Rover
Design and Fabrication of an Agricultural Spraying Attachment for an Autonomous Rover
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
Related questions
Question
"Design and Fabrication of an Agricultural Spraying Attachment for
an Autonomous Rover"
we need help in the machine design part of our study, specifically Pump selection, battery
selection, and center of gravity computation.
Rover weight capacity 35 kilo grams (payload)
Rover measurements:
Wheel distance - 14.5 inches and 8.5 inches
Rover platform size (width & length) 14.4 inches x 10.4 inches
Height- 15.8 inches.
....help it

Transcribed Image Text:Water tank selection
More or less 25 liters
*For tank selection we need to justify the size with the center of gravity, proving that is the
maximum dimension or liters of the tank because the center of gravity will be higher making
the rover prone to toppling
Pump selection
*Our sprayer design has two nozzles which splits using a tee splitter, we need to find the
size of the pump to obtain the same discharge rate of a normal sprayer. A normal sprayer
has a 12V pump and a pressure from 0.2 to 0.45 mpa (30-65 psi)
The application rate of the main pesticide is 9.6- 19.2 fl oz/A (Brigade Insecticide for sweet
potato)
www.
Thai was the initial deign where the water tank is above the battery and pump, but we
changed our mind, now it is the battery and pump above the water
Battery selection
once the size of the pump has been selected what battery should be used for that pump.
*
Commonly a knapsack sprayer has a 16 liters tank, 12v pump, pressure from 0.2 to 0.45
mpa (30-65 psi)

Transcribed Image Text:Spray Quality*
Extremely Fine
Very Fine
Fine
Medium
Coarse
Very Coarse
Extremely Coarse
Ultra Coarse
Size of
Droplets
Small
Large
VMD Range
(Microns**)
<60
61-105
106-235
236-340
341-403
404-502
503-665
>665
Droplet Size is Medium 236-340 microns
Color Code
Purple
Red
Orange
Yellow
Blue
Green
White
Black
Retention on
Difficult to Wet Leaves
Excellent
Excellent
Very Good
Good
Moderate
Poor
Very Poor
Very Poor
Used for
Exceptions
Exceptions
Good Cover
Most Products
Systemic
Herbicides
Soil Herbicides
Liquid Fertilizer
Liquid Fertilizer
4/4
Drift
Potential
High
Low
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