(02-03-2013) Design And Fabrication Of Solar Seed Sprayer.ppt 3k586p

DESIGN AND FABRICATION OF SOLAR SEED SPRAYER Presented by, M.Sridar

–

J.Uthayakumar

–

Marimuthu

–

Sathiya Seelan

–

Arun Prasad

–

Under the Guidance of,

Mr. Saravanakumar, M.E, (PhD).,

Introduction For improving the productivity of our agricultural 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 a very high potential of growth. 

Objective 

To design and fabricate solar seed sprayer

Problem Formulation Deg solar sped sprayer  Fabrication of solar speed sprayer 

Work Plan Aim & Objectives Problem Formulation

Procrument of Raw Materials

Solar

Battery

Blower

DC Motor

Seeds

Adjusting Screw

Design of Solar Seed Sprayer Fabrication of Solar Seed Sprayer Results and Discussion Conclusion

Seed Splitter

Connecting Wires

Methodology Auto CAD software is used for deg the solar seed sprayer  All the required equipment's are purchased and the fabrication of solar seed sprayer is done manually 

SPREADING INSTRUCTIONS

The opening in the hopper bottom is regulated by the control lever.  The size of the opening is determined by the calibrated scale.  Place the control lever at the desired setting and adjust the stop bolt. 

SPREADING INSTRUCTIONS (Contd.)

Check rate chart for suggested setting for material type to be spread.  Width of spread depends upon the motor speed and the weight of the material.  The heavier the material, the wider the spread 

SPREADING INSTRUCTIONS (Contd.)

Set seed gate opening stop for material to be used according to the  Selected ground speed and for once or twice over application, tighten gaff twice over spread is used as recommended, and area is not too large, it is advisable to put approximately one-half of material in hopper.  This will give an approximate check of rate usage and will allow for adjustments 

SPREADING INSTRUCTIONS (Contd.)

Finally close the gate and put in a predetermined amount of the material to be spread.  Spread this and check the results.  Make final adjustments to obtain desired results stop securely on calibrated seed plate. 

TYPES OF SOWING 

Hand sowing ◦ Hand sowing is the process of casting handfuls of seed over prepared ground: broadcasting. Usually a drag or harrow is employed to incorporate the seed into the soil.



Open field ◦ Open field refers to the form of sowing used historically in the agricultural context where by fields are prepared generically and left open, as the name suggest, before being sown directly with seed .

NEED OF SOLAR ENERGY 







Developing countries in particular, face situations of limited energy resources especially provision of electricity in rural areas. There is an urgent need to address this constraint to the social and economic development of our country. India faces a significant gap between electricity demand and supply. Demand is increasing at an alarming rate when compared to supply. According to leading Surveys, around 40

SOLAR POWER Solar energy is the utilization of the radiation energy from the sun.  When photons strike a photovoltaic cell, they may be reflected, right through, or be absorbed.  When enough sunlight is absorbed by the material, electrons are dislodged from the material's atoms.  When the two surfaces are connected through an external load, electricity flows. 

TYPES OF SOLAR COLLECTORS

TYPES OF SOLAR COLLECTORS 

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.

TYPES OF SOLAR COLLECTORS 

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.

TYPES OF SOLAR COLLECTORS 

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 has the advantage that it also stores the heat.

LEAD–ACID BATTERIES 

Lead–acid batteries, invented in 1859 by French physicist Gaston Planté, are the oldest type of rechargeable battery. Despite having a very low energy-to-weight ratio and a low energy-to-volume ratio, their ability to supply high currents means that the cells maintain a relatively large power-to-weight ratio. These features, along with their low cost, make them attractive for use in motor vehicles to provide the high current required by automobile starter motors.



Lead–acid batteries (under 5 kg) for 1.5% of all portable secondary battery sales in Japan by number of units sold (25% by price). Sealed lead–acid batteries ed for 10% by weight of all portable battery sales in the EU in 2000

ADVANTAGES OF SOLAR ENERGY Clean, renewable energy source  Solar systems are long lasting systems with warranties that are 20-30 years  Virtually no maintenance and no recurring costs  Ideal for remote locations that cannot be tied to the grid  No noise or smells, solar operates totally silent  Reduce dependence on foreign oil 

DISADVANTAGES OF SOLAR ENERGY 

No electricity can be produced at night, and reduced production on cloudy/rainy days

Results and Discussion 



  

The device can be operated by a single person and an unskilled labour can operated it. Using this, a single person can sow seeds and 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.