| Self photo with infrared camera
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What is normally used to make cold bridges at houses visible is here used as a fair attraction. An infrared camera shows pictures on 4 big screens.
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| Hydrogen energy cycle
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Hydrogen economy as a model. Photovoltaic delivers electric power, electrolysis splits water, hydrogen stored, fuel cell delivers electricity.
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| Home exercise kit heat pump
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The theory is well known. Higher temperature difference between cold and warm side causes more energy demand for the heat pump.
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| Heat pump demo
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This modified home exercise kit is for the illustration of the heat pump. The compressor powered by human muscles takes the coolant.
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| Hall heating with wood pellets
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Minus 9 degree Celsius 10:00am on the parking lot of the fair. To warm such a tent like fair hall, it's better to rent a 800 kW pellets heating.
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| Sheep wool insulation
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Each cubicmeter contains 16 kg sheep wool. Each sheep delivers about 2 kg wool per year. But how does it happen, that wool is nearly not more expensive than other insulation?
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