Institutional Solar Thermal Cooking Stove
Institutional Solar Thermal Cooking Stove - A thermal solar cooking system for institutional cooking within schools and hospitals
Designed for institutional users such as rural and peri-urban schools in Kenya, the Solar Thermal Cooking Stove system delivers a solution to both cook and heat water without using any firewood.
Addressing the lack of electricity, reliable supply and sustainable energy sources, this solution developed a tailor-made cooking system with the same capacity as the wood fuel stoves, using only the sun's rays as fuel. Apart from a minor demand of power for solar tracking, sustained by a small PV panel, the system requires no electricity or other fuel, storing heat for morning cooking. The institutional solar stove consists of a number of solar collectors (2 to 6, depending on application type, location and need for input heat), a heat storage component and an adequate number of cooking units, for school and larger-scale cooking - referred to as sufuria heaters. The heat is transferred between each component by means of thermosiphons, which are tubes, filled with water and at a slight sub-pressure. The solution helps to reduce cooking cost, deforestation, indoor pollution and improve the workplace environment for the cooks.
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Solar Waterboiling from Enno Ladwig on Vimeo.
Key features
- •From 510 to 680 tons of CO2e emissions per school can be reduced annually
- •Indoor pollution from the burning of firewood could be reduced to almost zero
- •Between one and two hectares of forest could be saved from deforestation each year per school equipped
Profitability
- •Payback time of around three years
Categories of Application
SDG’s of application
Maturity Stage
- Medium and large scale commercialization
- Small scale commercialization
- Initial market commercialization
- Prototype testing in the real world
- Prototype testing 1:1 in the lab
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