This design combine two solar cookers with rescue commodities ( like dry food, water... ) to become the emergency rescue service commodity combination. It could be transported to the disaster areas or the refugee camps to provide the disaster victims temporary kitchen work equipments. The people may assemble the solar cooker by themselves and heat food and water with heat energy from sunlight.
Background and motive
As the disaster occur frequently, solving the question of disaster victims' care and livelihood is government's most important work. But withdrawing the disaster victims from the disaster areas or investing the ready-made commodity in the areas is the futile continually vast project.
In the disaster areas waiting for rescue and reconstruction, the disaster victims must pay the physical strength and their lives to trade the firewood, the food and other commodities. Our goal is combining the solar cooker with rescue commodities to become the emergency rescue service commodity combination.
It could be transported to the disaster areas or the refugee camps to provide the disaster victims temporary kitchen work equipment and raise their survival probability.
Technic
The solar energy is the most abundant energy on the Earth. Fully using it could largily decrease people's relying on the electric power and petrochemical energy. In the third world countries, resources are deficient. The environmental groups and associations promote the solar cooker in those areas expecting to use the free solar heat energy well to improve those local people's life.
Solar cooker principle indication
Mirror metal paraboloid will inflect the light and heat coming in vertically to the focus, the pots set up on the focus can absorb solar heat continually.
Prototype making
We took some data as reference on the internet to build the 3D model. Then imitated the sunlight reflection path by a program called “Light Tool”
After adjusting through these two programs several times, we got the best camber for sunlight reflection efficiency. In the end we used 2D vector software to dismantle the surface into several curve files, and then cut them out in woods by laser cutting machine.
Pasting highly reflected sheet metal after combination, the prototype was completed.
First prototype experiment
No: 1
Date: 2011.01.20
Weather: cloudy, no sunshine
Time: PM 03:00 to PM 07:00
Place: Taiwan, Taipei
Temperature: 14˚C ~ 19˚C
In the first experiment, we controlled the temperature in a gentle and stable way - Artificial Light Source, and noted every 20 minutes about the change of temperature.
In this experiment, the temperature could not rise any more once it reached 65 degrees, and that’s because we miss counting the focus point.
Final prototype experiment
No: 8
Date: 2011.04.01
Weather: clear with cloudy
Time: AM10:00 to AM11:30
Place: Taiwan, Taipei
Temperature: 19˚C ~ 25˚C
After many adjustments and experiments, in the very 8th time, we used the natural sun light as the source, noting the change every 10 minutes.
And finally reached 100 degrees 60 minutes after it started, the water boiled in the content in front of us. We were so excited.
Then we cooked a cup noodle by those boiling water to celebrate.
Components
1. Sun positioning pointer: When the cooker faces the sun correctly, the pointer will have no shadow.
2. Reflector: Metal mirror paraboloid reflects sunlight to the focus.
3. Steel cup: The simple pots for victims.
4. Pot bracket: Supports the pots on the focus of the paraboloid.
5. Components storage space: The space for the components package behind the solar cooker.
6. Angle adjusting foot: The adjustable foot to adjust the direction which the solar cooker is facing.
Containing supplies
Two solar cookers combine to form one package. There are freeze-dried food, drinking water, steel cups, simple medical supplies and others for livelihood. One package can supply four people with basic living for seven days.
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Cheng,Jin-Dean / Chih-Feng Li / Ming-Chieh Yeh / Pin-Jia Su / Feng,Cheng-Tsung
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2012 iF Product Design Award Winner
2011 Lite-On Award Silver Award
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2012 published in magazine "Surface Asia"
2012 published in magazine "Surface Asia"
2010-2011 National Science Council Plan - Concept Design of Future Product
2011 display at Taipei World Design EXPO
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iF Product Deisgn Award
