Showing posts with label alternative energy. Show all posts
Showing posts with label alternative energy. Show all posts

Thursday, November 26, 2009

Green Heating and Cooling Technology from Carbon

Carbon is a substance environmentalists love to hate. It is the major ingredient of environmental damage. Scientists and environmentalists are working hard to decrease the amount of carbon emission in the environment. But researchers at the University of Warwick have invented a complete different use of carbon. They are using carbon for cooling and heating our cars and homes. If one follows their way, carbon can be utilized in a clean and green way. We know that heating and cooling gadgets make our life comfortable but they are not easy on our pockets. They need lots of power to run and ultimately get transformed into huge amount of bills to pay. If we look at the stats we will find that domestic space heating and hot water devour 25% of energy in the UK. Automobile air conditioning uses about 5% of the vehicle fuel consumed annually all over the EU. Inside the UK, it is responsible for over 2 million tonnes of CO2 emissions.


Researchers at the University of Warwick are trying to find out clean and green solutions to the above mentioned problems. They are devising new ways to save energy and reduce global warming.

If we are using even the finest condensing boilers at homes they are about 90% efficient. If we are opting out for electric heat pumps that use electricity to pull out heat from the outside air or the ground to keep our houses warm, the electricity consumed results in huge CO2 production at the power station.

Researchers are trying to devise a novel way of using adsorption technology to heat and cool our houses and cars. They utilize the heat from a gas flame or engine waste heat to power a closed system containing only active carbon and refrigerant. It works in a simple manner. At room temperature carbon adsorbs the refrigerant and when heated the refrigerant is driven out. This is a procedure that alternately heats and cools the carbon. This procedure can be used to remove heat from the outside air and put it into radiators or hot water tanks. It works in opposite manner for air conditioning cars. It extracts the heat from the inside of the car. The major hitch of adsorption technology is that it would require roughly 300 liters in volume for an automobile’s air conditioner and bigger for a heat pump to heat the houses. We can’t fit such a device into a car or our houses carrying that huge volume.

University of Warwick researchers have cracked the above mentioned problem of huge volume. They formulated adsorption systems design that significantly shrink these devices. Their devices are small and light enough to be fitted in our houses and cars. They have applied for a patent for their invention. They use thin (0.7mm thick) sheets of metal throughout the active carbon in the heat exchanger. Every sheet holds around hundred tiny water channels (0.3mm in diameter). This makes the heat transfer much more efficient. These water sheets shrink the adsorption based equipment 20 times smaller than was formerly possible.

The University of Warwick engineers are of the view that their new adsorption technology will reduce the electricity up to 30%. They invented device that will utilize the waste automobile heat and cool the interiors. This will not derive any mechanical power from the car engine. So it will result in reduction of fuel consumption and CO2 emissions up to 5%. But here is the cherry on the top. According to the scientists we don’t have to shell out extra money to integrate these equipments into new vehicle models. If it would cost us at all, it will be very little.

Manufacturers are interested in the work of Warwick engineers. Now Warwick Ventures, the university’s technology transfer office, and H2O Venture Partners are setting up a new spin-out company, Sorption Energy Ltd. They are aiming to capture the two high value markets: greener heating and hot water systems for houses and air conditioning for cars.

Dell installs SOLAR TREES in HQ Parking

Two things are certain for the future: electric cars will become more popular and solar power will continue to grow as a viable source of energy. Because of this, the world is looking to industry leaders not only in the energy business, but to other major corporations that can have a major impact on the world’s power usage. Dell has stepped up to the plate and hopefully the Dell solar trees parking lot is a sign of greater things to come. The Dell solar parking lot by Envision Solar is a very innovative way that Dell has implemented solar powered lights and it is something that is immediately making an impact. The solar trees serve not only the purpose of gathering the suns energy as a viable energy source, but even provides shade over about 50 parking spaces as well! The lot was made viewable from the highway so Dell can let everyone know that solar power is the way to go.


In addition to providing shade for 50 lucky vehicles, the dell solar trees parking lot is self powered. The electric that is generated via the sun’s rays is stored and can be used to light the parking lot as night settles in. When you think of how much energy is used on a daily basis in parking lots around the world, the money and energy that could be saved by using something similar to the Dell solar tree parking lot is staggering.

Not only can the Dell solar trees run off of its own electricity, it also has the ability to provide power to charging stations for those that are using electric cars. Now imagine the world in the very near future when electric cars are more prevalent and having the ability to charge your car every day at work for free! This is something that could be a deal breaker in the working world for those that are being wined and dined by perspective employers.

Solar energy is here to stay and the solar tree parking lot is yet another great example of how solar lighting and solar power in general is being put to better use. To think that it took this long to think of a legitimate way to for outdoor solar lighting to be put to a use that would help both the world and people in general is simply amazing. Hopefully other companies will run with the idea that Dell has started and lots similar to the parking lot will start to pop up in business lots and shopping malls across the globe.