A low tech and natural air conditioning system

Cold Pot natural air conditioning systemI like Treehugger for coming up with great designs that could change a bit the world we are living in. One of their latest finds was a natural air conditioner that uses clay and evaporation.

As Treehugger noted : ”  Thibault Faverie‘s Cold Pot is a natural and simple air conditioner that uses clay and the power of evaporation to cool down temperatures in a low-tech energy-efficient fashion. “

Coupled with more efficient houses and buildings – a solution that would tackle our energy and climate problems – this invention could curb the use of climate damaging A/C.

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Solar electricity, A/C and water. All-in-one.

The High Concentration PhotoVoltaic Thermal system To Climate Progress, Swiss researchers working with IBM have built a new solar dish, called the High Concentration PhotoVoltaic Thermal system (HCPVT) that tackles the waste heat problem by using it to generate fresh water.”

Yep, a solar installation that generates fresh water, thus solving two common problems faced in developing nations around the world. Icing on the cake, it could also be used for air conditioning.

If all this wasn’t enough, IBM believes this could be cheaper than comparable solar systems, less than $10 cent per kilowatt hour. Talk about genius !

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A/C may contribute significantly to global warming

As the planet is warming and as more and more people can afford it, air conditioning is becoming more and more widespread. This wouldn’t be a problem if A/C weren’t emitting greenhouse gases. To the NY Times : ” The leading scientists have just calculated that if all the equipment entering the world market uses … Read more

Putting the A/C at the right temperature

Air conditioning is a fantastic invention as it allows to remain cool when temperatures are reaching 30°C and even 40°C. However, in many buildings around the world, the A/C is not set at the right temperature. As the New York times noted :

“Without fail, every year since moving to Hong Kong, I get a really bad cold. (…) “Oh, it’s quite common this time of year,” my doctor told me. “Everyone gets sick.” He was referring to the time of year that Hong Kong cranks up its air-conditioning. “

I have read that the same situation occurs in Singapore. I have witnessed it first hand in Europe as well. Others have told me about such a situation in America. This is a widespread phenomenon.

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90% more efficient air conditioning

As the world is heating up because of global warming we need more air conditioning systems. This is why the latest invention from the U.S. National Renewable Energy Laboratory may change the world.

Indeed, to the MIT Technology Review, the NREL have created ” a new air-conditioner design that (…) will dramatically increase efficiency and eliminate gases that contribute to global warming. “

Using indirect evaporative cooling, and desiccants this invention would use up to 90 percent less energy and wouldn’t need CFCs to operate.

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Why heat pumps are a fantastic idea

a Viessmann Heat pump As Eurobserv’ER published a market barometer for heat pumps I thought it might be the occasion to have a look at this most interesting and promising technology which already accounts for nearly 9 GW th of capacity in Europe.

With over 100,000 systems installed every year throughout the European Union, heat pumps can both heat and cool houses or buildings in an efficient and environmentally friendly way.

With ten percent of growth the market already represents 780,000 systems installed in the 27 country-members. No doubt it will continue to expand.

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