TABLE OF CONTENTS
1.1 Background to the study
1.2 Solar Energy and Deep Cycle Battery
1.2.1 Solar Energy
1.3 Definition of Sprayer
1.4 Statement of the Problem
1.5 Aims and Objectives of the Project
1.6 Justification of the Project
1.7 Scope of the Project
2.1 Solar Energy
2.2 Solar cells
2.3 Different Types of Solar Panels
2.3.1 Flat Plate Collectors:
2.3.2 Focusing Collector consist
2.3.3 Solar Cells:
2.3.4 How Solar Panels Work:
2.5 Factors that influence the selection of
2.6 Methods of Controlling pests and Disease
2.6.1 Cultural control
2.6.2 Chemical control
2.6.3 Biological control
2.6.4 Mechanical control
2.7 Economic importance of pest and disease
2.8 Crop Protection
2.9 Crop Protection Equipment
2.10 Classification of Crop Protection Equipment
2.11.3 Classification of Sprayer
2.11.4 Manually Operated Sprayer
2.11.5 Components Parts of Sprayers
2.11.6 Types of Nozzles
2.11.7 Factors that affect sprayer performance
3.1 Selection of Materials
3.2 Design consideration
3.3 Important Description of the Components
Parts of the Sprayer.
to the study
Sprayers are devices that are specially designed to spray liquid quickly and
easily. They come in a number of different varieties. A sprayer is used to
cover large area such as lawns quickly and easily. A boom sprayer of this type
is typically used for spraying chemicals such as pesticides, herbicides, herbicides,
insecticides and fungicides.
Along with proper plant selection and cure, controlling pests in lawn or
garden is an important part of maintenance. Pesticide, insecticides, herbicides
and fungicides should be limited where possible, but when necessary, they
should be used responsibility. This is the major reason why crop protection is
highly required by dealing with the destructive agents that that usually attack
crops as: weeds, pests, insect, diseases e.t.c.
In the dynamic and post changing agricultural system of the country,
especially diversification in the dropping particle and commercialization of
agriculture, more equipments are required. The existing boom sprayer is
operated by tractor.
Hence a battery operated solar charged boom sprayer is to be designed with
a low weight compared with the existing boom sprayer which is operated by a
Energy and Deep Cycle Battery
From time immemorial, the sun has been the prime source of energy for
life on earth. The solar energy is being used directly for purposes like drying
curing agricultural produce, preserving food produce e.t.c.
Today the energy we derive from fuel-wood, petroleum, paraffin, hydro-electricity
and foods originates indirectly from sun.
Solar energy is virtually inexhaustible. The total energy we receive from
the sun far exceeds our energy demands. It is probably the most reliable source
of energy available everywhere and to everyone, unlike other sources.
Ever since the industrial revolutions, human have been dependent on fuels,
electricity and wind energy for development in many countries. There are
various research work going on about solar energy.
Electricity can be converted from sunlight into direct current with the
use of photovoltaic cell (PV). A photovoltaic cell is a device that converts
sunlight into direct current using the photovoltaic effect.
Deep Cycle Battery
Batteries are the key component in various type of renewable energy
systems that require the storage of electricity. A battery is essentially a
storage vessel for electricity. It is a critical component heavily relied upon
by the system as a whole. A battery bank can provide a relatively constant
source of power when the grid is down, or during period when your photovoltaic
system is not producing power. Although batteries are not one hundred percent
efficient, they are predictable and stable enough for reliable long-term
service. Batteries are basically the only method to store direct current (DC)
power produced from source like solar panel, wind generators, micro-hydro or
Deep Cycle Batteries are energy storage units or device in which a
chemical reaction occurs that develops voltage and results in electricity.
These batteries are designed to be cycled (discharged and recharged) many
times. While a car battery is designed
to deliver a burst of energy for a short time, a deep cycle battery provides
power at a steady rate over a long period of time.
There are different types of deep cycle batteries such as; Flooded
batteries, gel batteries, and AGM batteries (Absorbed Glass Mat); And more
recently, Lithium – ion. All are made differently.
Merrian - webster’s define sprayer as the act of putting (something) on a
surface or into the air using a special container that produces a stream of small
drops of liquid.
Furthermore, in agricultural terms, sprayer is a piece of equipment that is
used to apply herbicides, fungicides, insecticides, pesticides and fertilizers
on agricultural crops or a device that convert mostly mechanical energy to hydraulic
energy in order to atomize liquid chemicals into a spray fog for other pest,
disease, insects or weed control on a given land.
of the Problem
Traditional method of containing pests (i.e weeds, insects e.t.c) is tedious,
energy saving and it is not effective therefore there is need to introduce small
scale fabricate boom sprayer that will control the growth of pests (i.e weeds,
insect e.t.c). Unlike the manual method (e.g Knapsack sprayer) which is usually
mounted at the back of the operator with pump and nozzle being controlled by
the use of both hands; which result to body pains and unpleasant feelings that
can even lead to severe health problem after operation. This experience has
brought the improvements of crops and invariably improve the yield from the field
also the cost of using petroleum and electricity.
There is therefore the need for the design, fabrication and performance
evaluations of a battery operated solar charged boom sprayer.
and Objectives of the Project
The Aims of this project is as follows:-
To design and fabricate a battery operated solar charged
To perform the evaluation of the battery operated solar
charged boom sprayer in terms of spraying pattern, volume, time and area
of the Project
The concept of this project work would lead to the following advantages
To improve the quantity of the crop planted
To control the growth of pest not comporting with crops
To reduce human labour on the field and discomfort
To reduce the cost of weeding compared to lead method of
To improve working efficiency under different working conditions
of the Project
This project work is limited to the design, fabrication and performance evaluation
of a battery operated solar changed boom sprayer considering the following
The speed of the machine
The specific area covered per unit time
The charging rate and time from the solar panel.
The volume of the chemical used per unit area
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