Who can explain the Eco Cooler model
All that is needed are old plastic bottles and a wooden plate - holes in, bottles inserted and into the window, and the world's first air conditioning system that uses no energy is ready. Simple instructions explain how the ECO-Cooler can be built and how the room temperature can be reduced by up to five degrees. With dangerous temperatures of around 45 degrees in the corrugated iron huts where people live in rural Bangladesh, this temperature difference can be a real relief.
Bangladesh is one of the poorest countries in the world. About 81 percent of the population live on less than two US dollars a day, have neither electricity nor access to clean water. One of the most important industries in the country is the textile industry. Time and again, the country is hit by floods after heavy rains and feels the consequences of climate change.
DIY air conditioning made from plastic bottles
Because there are often floods in Bangladesh, many rural residents live in tin huts instead of mud houses, which can otherwise be destroyed more quickly. Since very few have access to electricity, it gets unbearably hot in these tin huts in the hot season, almost like a sauna in the desert.
As of February of this year, more than 25,000 households in Bangladesh have installed the DIY air conditioning system in their homes as part of a social responsibility program. The DIY air conditioning system also has the advantage that plastic bottles are not simply thrown away or burned, but can be processed further.
ECO-Cooler was developed by Gray Dhaka, among others. The principle is very simple: if you blow on your palm with your mouth wide open, you can feel a warm breeze. However, if you blow on your hand with your mouth pointed, it feels cooler. This is how the currentless ECO-Cooler works:
For those who want to build the ECO-Cooler themselves, there are free instructions here
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