The students made solar cookers from recycled materials at their school to learn about sustainable energy sources. They collected information on solar cookers, constructed panel and parabolic reflector models, and tested them to reach temperatures of 35C and 70C. The students also compared their designs to those of partners in other countries and concluded the project highlighted the environmental and economic benefits of renewable resources.
The difficulties with suitability of solar cookers to local cooking needs are not impossible to overcome. The users and local
cooking needs need special attention in any solar cooking project.
The difficulties with suitability of solar cookers to local cooking needs are not impossible to overcome. The users and local
cooking needs need special attention in any solar cooking project.
The paper mentions the major issues related to the residential solar energy and the commercial solar energy. Covering the types and application of both residential and commercial, cost related issues, and the future of the industry.
The paper mentions the major issues related to the residential solar energy and the commercial solar energy. Covering the types and application of both residential and commercial, cost related issues, and the future of the industry.
The International Conference on Advances in Renewable Energy (ICARE) was held at National Institute of Technology (NIT), Bhopal in June 2010.
The topic of my presentation was: A simple procedure for estimating heat capacity and optical efficiency of solar box type cooker
POWERPOINT NOT MINE. CREDITS TO THE RIGHTFUL OWNER. I JUST SHARED IT HERE SO I CAN PUT A LINK TO MY BLOG. I'M TOO LAZY TO TYPE ALL THESE ONE BY ONE LOL
Solar power energy is the best source of light and it is most efficient way to get energy from sun. Now you can install solar panel at your home and make eco-friendly environment. Look at this presentation how you can use solar panel at your home.
Concentrated Solar Power Course - Session 2 : Parabolic TroughLeonardo ENERGY
In this session the main elements of the parabolic trough technology will be described: concentrators, receivers, heat transfer fluids, connecting elements, etc.
Then, the main characteristics of today’s parabolic trough solar thermal power plants will be presented: design, operation and costs.
Finally, the audience will get some ideas for future developments.
Done by Geniuses group, Doha Independent secondary school for boys
Dye-Sensitized Solar Cells (DSSC) is a low-cost solar cell belonging to the group of thin film solar cells.
As you know that the Qatari society likes to spend the weekend in the mainland, and this is the idea of our project in the energy that you need to spend the Qatari family needs in such leave, the provision of our product provides the raw material in the production of electricity as fuel, diesel fuel.
Solar Ovens:Opportunities for Refugee Camps and for India. Based on the field experience of Tchad Solaire, Jewish World Watch and other humanitarian organizations in several refugee camps of Eastern Chad, the presentation provides useful insights on why and how to promote solar cooking, together whit fuel-efficient stove cooking and heat retention cooking, both in refugee camps and in India.
different types of solar cooker,parabolic solar cooker largest solar steam cooking plant in INDIA at SHIRDI ,parabolic solar cooker stirling engine,steam cooking by parabolic reflectors at MOUNT ABU RAJISTHAN ,INDIA
A solar cooker is a device which is used to cook food by utilizing the heat energy radiated by the sun.
It utilizes the principle of reflection, concentration, absorption and greenhouse effect to convert sunlight to heat energy.
Most common, inexpensive and easier to build
A solar cooker consists of an insulated metal box or wooden box which is painted all black from inside.
1. Shpogy Secondary School
Research work in English
Authors: Laura Lāčauniece,
Jānis Stupelis
The Adviser of the Research Work:
Eva Vovka
Shpogy, 2013
2. The aim:
• To make a solar cooker from recycled
materials at school.
The tasks:
• To collaborate with the Comenius partners and share the
experience on the issue mentioned in the aim of the research
work.
• To collect theoretical information about a solar cooker;
• To make the solar cooker;
• To test it;
• To compare our solar cooker with the cookers of our
Comenius partners;
• To summarize the results of the research work and present
the results.
Methods: work with literary resources,
observation, research, analyses, comparison
3. Theoretical Part
The sun is one of the humanity's most important tool for
survival. It gives off unlimited amounts of light and heat.
Natural and simple technologies like solar cookers can
reduce or even replace fossil fuels, they do not produce
waste. Moreover, materials to build it can mostly be found
from recycled sources which makes it even more
sustainable.
A solar cooker is a device which uses the energy of
direct sunlight to heat, cook or pasteurize food or drink.
4. Panel cookers.
• This cooker works by means of a parabolic reflector, which
concentrates the rays of the sun on the pan and heats it. It is
possible to reach high temperatures and, consequently, besides
cooking, it is also possible to bake and fry.
• The only task for the cook is to rotate the cooker about every 20
min in order to orientate it towards the solar rays.
It is because of the earth’s rotation.
• These are in use in refugee camps around the world.
5. Box cookers
• It was first built by Horace de Saussure in 1767; Later
Augustin Mouchout developed the idea of solar cooking.
• 90–150 °C temperature can be reached. For best results
clear sunny days are necessary.
• It has a glass or Plexiglas cover, this cover is like a greenhouse
window- it lets the sunlight in but does not let infrared radiation
out. This type cookers also have a reflector which increases the
amount of energy the cooker receives. This device exploits solar
energy to cook food or just heat it.
6. Parabolic cooker
The first parabolic solar cooker was developed in the 1950s
by M L Ghai at the National Physical Laboratory (NPL) in
Delhi, India.
These ovens are usually made having a concave disks that
focus the light onto the bottom of a pot. They cook food
about as fast as on a conventional stove. Since the
concentrated sunlight shines directly on the bottom of a
pot, the pot heats up and cooks very quickly.
Widely used in China.
7. Practical part
• Panel cooker:
cooker
• To make a solar cooker we need a shiny surface to reflect and
concentrate the Sun’s energy. We took an aluminum bowl.
• We had few sunny days in winter. We could not make a real
solar cooker by using solar power as an alternative we took a
lamp
8. Experiment
In 20 min the cooker
reached 35 °C
temperature and
chocolate started
to melt.
In 40 min the cooker
reached 70 °C
temperature and
candle started to
melt.
12. Conclusion
The research work is based on Comenius activity- sustainable
or renewable energy resources. Science teacher Dr Rajinder
from Germany gave a lecture how to make a solar cooker and
ten countries made the cookers. He wanted to tell us that
renewable energy is important and beneficial:
•Environmental benefits;
•Energy for next generations;
•Workplaces and the economy;
•Energy security.
Unfortunately the survey carried out proves that in Latvia we
have poor awareness of sustainable energy resources. It is
strongly recommended to assess the priorities and to think
about the future.