The science of the botijo, or why the cars of the future will not need heating or air conditioning

“Is simpler than the mechanism of a jug“. Sure that I’ve ever heard. And this invention of the homeland may be simple on paper, but you get something prodigious: cools its contents even in the warmer climates. is Not magic, is a simple physical process, which for many is unknown. The water vapor and the porosity of its structure are responsible. what if I now tell you that in the future, cars will not need heating or air conditioning? As simple and as complicated as a botijo. Let us I explain.

Seat Heat Sink: the seats of the future absorb our body heat and heated air currents with the same.

The jug cools by itself the liquid that it contains. It does so through the porosity of the clay of which it is composed. The evaporation of your interior is filtered through the pores of the clay, and with it, the water inside loses power, cool. It seems like magic, but it is not. Land Rover and Jaguar are developing systems that are very similar to that of the jug, with the goal of future to achieve a advanced passive heating and cooling. For example, extracts heat from our bodies to heat the passenger compartment.


Have patented a new seat that it absorbs the heat emanating from our bodies, aportándolo to a simple current of air circulating throughout the passenger compartment and eliminate the need for heating systems. Smart, simple, and virtually free. The heating in a conventional car is obtained from the heat generated by the heat engine, but in electric cars is a huge expense extra. In conventional cars a technology like this will also reduce the emissions of CO2.

Standards for efficient building, applied to the car

An insulation powerful and surfaces, which favour the exchanges of heat that will shape the future of the air-conditioning on wheels.

Another of the basic pillars of passive air conditioning is a excellent thermal insulation. A few years ago there developed in Germany the standard Passivhaus building. Are houses built with a amount of insulation far superior to normal, completely watertight and without cracks. It is estimated that in climates such as German, reduces energy consumption by up to 80%. In the climate, the houses Passivhaus save up to 60% on heating compared to a conventional dwelling.


Are houses that just go into dust, are equipped with glass double – or triple–, and heat up the complete with a small stove and current mechanical air. Applying these standards to the car, at Jaguar Land Rover have developed a number of coatings of insulating high performance body and lenses, that literally repel infrared rays, responsible for the heat. Instead of having a huge greenhouse effect to leave our car in the sun, not warm a whit.

Jaguar-Land Rover is also working on reducing the weight of the components of the interior of the car.

technology Warm Air Blanket Jaguar Land Rover seeks to facilitate the exchange of heat by coatings, porous smart for the passenger compartment of the car. Innovative materials close to our body, that heat up or cool down those areas where we feel thermal sensation. For example, the face, the hands or the feet. The recirculation mechanical air filters and high performance – not as high as the Tesla – will also be one of the keys to our well-being thermal.


By ventilation selective by using porous surfaces – remember, the operating principle of the botijo – the car will also be able to cool down, as if by magic. These advances in passive heating are still far from reaching the market, mainly because of the huge cost they pose to the manufacturer of automobile: they are still in the research phase. Soon they could start to get some of the new technology to the mass market, selectively, and in high-end models. Stay tuned.

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