128321713 02-03-2013 Design and Fabrication of Solar Seed Sprayer Ppt

8/10/2019 128321713 02-03-2013 Design and Fabrication of Solar Seed Sprayer Ppt

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DESIGN AND FABRICATIONOF SOLAR SEED SPRAYER


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Introduction

For improving the productivity of ouragricultural lands it is stressed that they

must employ high technology in every

activity.

This involves the use of tractors, electrical

pumps and motors etc.

Hence if a manually operated solar speed

sprayer be designed it will prove but with avery high potential of growth.


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Objective

To extend the concept of Solar PV-Technology on Solar Sprayers as

Energy Alternate Devices.


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Problem Formulation

Fabrication of solar speed sprayer


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Work Plan

Conclusion

Results and Discussion

Fabrication of Solar Seed Sprayer

Connecting Wires

Adjusting Screw

Procrument of Raw Materials

Solar Panel Battery DC Pump

Problem Formulation

Aim & Objectives


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Methodology

To overcome the above difficulties in theExisting models and to reduce the

operating cost of the Power Sprayer, a

modified model has been designed andintroduced for effective operation without

fossil fuel. In this modified model the two

stroke petrol engine is replaced by asingle motor. This can be operated by

the electrical energy stored in the 12V

battery attached in the Unit. The 12V

battery can be charged by the Solar


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Specifications Of Motor

Weight of the motor 1kg (approx)

Operating Voltage 12V

Operating current 2.1 A

Flow 2.6 LPM

Motor Cost

Rs.700


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Specifications Of Battery

Weight of the battery 2 kg

Cost of the battery Rs.500600

Output power 86.4 watt

Operating voltage

12 V

Current 7.2 A


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Specifications of solar panel:

Panel Size 1 x 1

Cost of the Panel Rs.700 - Rs.1,000/-

Weight of the Panel 1kg

Voltage 15 volt

Current 5 A

Power 75 watt


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WORKING PRINCIPLE AND OPERATION

Solar radiation can be converted directly into electricity

using semiconductor devices, which are known as Photovoltaic(PV) cells. When Sunlight falls upon the Solar cell a part of the

light is absorbed and it is converted into Electrical Energy by

means of Electron Movements. This Solar Panel is connected to

12V lead acid battery for storing the electrical energy. A 12V DCmotor is connected to the lead acid battery to convert the

electrical energy into mechanical energy. Then the pesticide is

made to flow through the spray gun at 2.6 litres per minute.


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Battery Charger


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NEED OF SOLAR ENERGY

Developing countries in particular, facesituations of limited energy resources -especially provision of electricity in ruralareas.

There is an urgent need to address thisconstraint to the social and economicdevelopment of our country.

India faces a significant gap betweenelectricity demand and supply. Demand isincreasing at an alarming rate whencompared to supply.

According to leading Surveys, around 40


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SOLAR POWER

Solar energy is the utilization of theradiation energy from the sun.

When photons strike a photovoltaic cell,

they may be reflected, pass right through,or be absorbed.

When enough sunlight is absorbed by the

material, electrons are dislodged from thematerial's atoms.

When the two surfaces are connected

through an external load, electricity flows.


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TYPES OF SOLAR COLLECTORS


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Concentrating solar collectors This type of solar collector consists of parabolic mirrors

that concentrate the light onto a spot or a line, where the

heat is generated.

The parabolic mirrors work like a magnifying glass.These collectors are efficient and can be produce energy

at a very high temperature 300-5000C).

Flat plate solar collectors These collectors are generally used for water heating at

moderate temperatures.

They consist of a cover made of glass or plastic and an

absorber plate with attached water tubes to heat up

water.



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Evacuated tube collectors The evacuated tube collector is a non-tracking solar collector.

It consists of two concentric tubes made of borosilicate glass.

It utilizes a vacuum between the tubes in order to eliminate

conductive and convective losses. Generally they perform very well even in cold and overcast

weather.

Uncovered absorbers Uncovered absorbers are black surfaces with incorporated

water tubes. They have no additional means of retaining

heat.

They are able to yield high efficiencies near ambient

temperature (20 400 degree C). The costs are very low,

so the pay-back time is short.



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Solar ponds A solar pond is a basin of water where convection is

prevented. Water is used as an insulator and as a heat

radiation barrier. Convection is prevented by a salt gradient

or by layers of transparent plastic film. The solar pond hasthe advantage that it also stores the heat.



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ADVANTAGES OF SOLAR ENERGY

Clean, renewable energy source

Solar systems are long lasting systems withwarranties that are 20-30 years

Virtually no maintenance and no recurringcosts

Ideal for remote locations that cannot be tied tothe grid

No noise or smells, solar operates totally silent

Reduce dependence on foreign oil


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DISADVANTAGES OF SOLAR

ENERGY

No electricity can be produced at

night, and reduced production on

cloudy/rainy days


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Results and Discussion

The device can be operated by a singleperson and an unskilled labour can

operated it.

Using this, a single person can sow seedsand cover an area of 6 hectares of land on

a songle day

Thus the design and fabrication of solar

seed sprayer has been done. Compared to manual spraying it takes only

less time and less effort.

Cost for fabricating this equipment is less

128321713 02-03-2013 Design and Fabrication of Solar Seed Sprayer Ppt

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