The Energy Which Never Ends !
Use Me !
Energy Crisis is the one of the major issues which
influence our lifestyle. Its not pertaining to a
particular state or nation, it’s a global issue
influencing whole world. Working for a pollution
free environment and promoting renewable
energies is the responsibility of all.
Why Solar Energy ?
•
It is a readily available source of energy.
•
It does not belong to anybody and is, therefore, free.
•
It is non-polluting and therefore, helps in lessening the
greenhouse effect.
India receives solar energy equivalent to over
5000 trillion kWh/year, which is far more than the
total energy consumption of the country. Using
solar energy effectively will solve our country’s
energy problems.
How can I use solar energy
effectively?
We are………..
Committee members of Karnataka Energy
Development Agency.
Our Goal
• Conduct research and design a solar cooker which
is energy efficient.
How can we best design a solar cooker?
Area of Study
• Solar Cooker Material Research
• Solar Cooker Design Research
What we did…
We studied basic principles and three models to
develop an improved solar cooker. Each design
has its own advantages and disadvantages. So
by considering these three as base we came out
with improved design of our vision.
Box Cooker
A solar box cooker is an insulated box with
a transparent top and a reflective lid.
Advantages
• Simple and easy to
make
• Cost is less
Disadvantages
• Can’t utilize more
energy.
• Heat loss is there
Panel Cooker
Solar panel cookers have multiple simple
reflectors arranged to focus solar radiation
onto a covered black pot enclosed in a clear
heat-resistant plastic bag or other clear
enclosure
Advantages
• Most of the energy is
utilized with more
reflectors.
• Simple and easy to
make
Disadvantages
• Heat loss is there
• Heat storage less
Parabolic Cookers
Parabolic solar cookers have parabolic
reflector arranged to focus solar radiation
onto a cooker or food box
Advantages
• Good energy
utilization and
focusing
Disadvantages
• Less heat storage
area
• Heat loss
Factors Considered…
•
•
•
•
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Good Materials
Attractive Design & easy to use
Maximum utilization of energy
Minimize heat loss
More heat storage
Our Design
Reflectors
Solar box
Food Container
Glass
How it is Different ?
• Glass orientation is very good in such a way that it faces the
sun directly and increases heat gain.
• Reflectors were used on the top of the box to bounce/ focus
additional sun light through the glass and into solar box results
in higher cooker temperatures.
•
To prevent loss of heat via conduction through the bottom of
the cooker, the absorber plate is raised from the bottom using
small insulating spacers.
• Structural and insulating material was used so that the box will
have and retain a given shape and form, and be durable over
time
• Its incorporated all the essential qualities of Box, Panel and
Parabolic Cookers.
Special Attraction !!!
•
•
•
•
•
•
•
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Good Heat Gain
Less Heat Loss
More Heat Storage
Structured & Insulated Material
Moisture Barrier
Long Durability
Less Maintenance
Easy to Use
Let us start using
effectively
what we have …
Resources Used
• http://solarcooking.org/
• http://en.wikipedia.org/wiki/Solar_oven#Solar_panel_cooker
• http://office.microsoft.com/clipart
• http://www.fsec.ucf.edu/solar/PROJECTS/solarcooker/cooker.htm
• http://www.angelfire.com/80s/shobhapardeshi/ParvatiCooker.html