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IBM supercomputer reuses heat to warm buildings

IBM’s latest green venture is a highly efficient supercomputer that uses water to siphon off  , and then uses the excess energy to warm up a building.

High-tech giants from Microsoft to Google are eager to cut the huge amounts of power used to run their data centers, particularly now that the recession has companies leaving no stone unturned to slash costs and global warming is driving them to think green.

Developed by IBM jointly with the Swiss Federal Institute of Technology (ETH) — a sort of Swiss version of the Massachusetts Institute of Technology — the new supercomputer’s microchips avoid cooling with energy-sucking air conditioning.

Thanks to a network of water-carrying “micro-capillaries” that take water very close to the microchips, the system is cooled at a temperature of 60 degrees Celsius, rather than a “normal coolant” that requires a temperature of about 20 degrees Celsius, or air at around 6 to 12 degrees Celsius, according to IBM researcher Dr. Thomas Brunschwiler.

“Typically you would use air conditioning, which is very intensive, and this is eliminating that by using water to take the heat and transfer it away from the chips,” Brunschwiler said.

According to IBM, the computer, dubbed Aquasar, will reduce overall energy consumption by 40 percent and save up to 30 tons of carbon dioxide a year, about the same as driving an average car around the world 10 times.

In addition, the excess heat from the computer will be piped into the building’s heating. The 25 kilowatt system will account for just “a small fraction” of the building’s overall energy demand, but researchers said future applications are promising.

“In a future system if you run an entire data center in this mode then it will be a large fraction of the energy demand of an entity like this,” said Dr. Bruno Michel of IBM Research in Zurich.

It could be a while, however, before that happens. The ETH supercomputer won’t start operation until 2010, and the company would not estimate how much it will cost to build except to say that it will be more than a supercomputer with a traditional cooling system. The return on investment, however, is within one year, IBM said, given the system’s efficiency.

Photo Credit: IBM (A water-cooled blade used in IBM’s Aquasar supercomputer. The two microchannel coolers at the center are attached directly to the processors.)

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New ‘gold rush’ buzz hits Germany over Sahara solar

A “gold-rush-like” buzz has spread across Germany in the last week over tentative plans to invest the staggering sum of 400 billion euros to harvest solar power in the Sahara for energy users across Europe and northern Africa. Even though European and Mediterranean Union leaders have been exploring and studying for several years the idea of using concentrated solar power (CSP), the Desertec proposition suddenly captivated the public’s attention a week ago when German reinsurer Munich Re announced it had invited blue chip German companies such as Deutsche Bank, Siemens and several major utilities to a July 13 meeting on the project. The 20 companies aim to sign a memorandum of understanding to found the Desertec Industrial Initiative that could be supplying 15 percent of Europe’s electricity in the decades ahead.

Germany’s deputy foreign minister, Guenter Gloser, has been the government’s point man for the project. I had the chance to talk to him about it.

Question: How did this project to turn the sun in the into electricity for Europe and north African countries get started?
Guenter Gloser: About 15 months ago Germany and France proposed including the solar plan into the list of projects for the Union for the Mediterranean. There were institutions that had already done research and we thought: ‘Why don’t we use this sun belt where there is such an abundance of sunshine as a source of renewable energy?’ Together Germany, France and Egypt put forth this solar plan as one of the six projects for the Euro-Mediterranean Partnership and underscored the fact that it could benefit both sides. It was not an idea where just countries north of the Mediterranean will benefit but rather those countries south of it as well as across the EU would also benefit.

Question: What is the current status of the project?
Gloser
: We agreed to move forward with the project and want to go forward step-by-step towards its implementation. But obviously neither the EU nor the Arab League will be the principal players but rather private investors. Our task for this project is to create the political framework — for example with setting up of the feed-in tariffs, ensuring the infrastructure is built and ensuring that the renewable energy can be transported to Europe. The political framework can also make it possible to expedite the approvals process. But what is also very important is that the energy produced is also available for countries in the region. For example, Morocco can take advantage of its solar and wind conditions on the Atlantic coast to build solar power plants or wind energy parks to provide energy for its domestic market and to sell energy abroad as well. Even countries such as Algeria, which has fossil fuel reserves, could also use the sun belt for solar thermal power for some of their energy needs — and prolong their fossil fuel reserves.

Question: Is there not risk involved in such large-scale investment in a region with a potential for political instability?
Gloser:
It’s a cooperation that will contribute towards diversifying energy sources, geographically and in terms of energy sources. It’s a truly fascinating project because it’s a win-win for everyone. And the third winner will be the people and institutions that finance this project. Neither the EU nor the countries in the south are capable of financing this on their own. So the question is: can third-parties bringing financing be involved. Energy security is an important issue everywhere. There are energy sources we have today that at times have been somewhat at risk. There’s no contradiction in saying that it’s important to diversify a country’s energy source as well as diversifying the types of energy it receives. It’s not that there is no risk whatsoever but it’s important to keep in mind that there are also some risk factors for other sources of energy that we are now importing.

Question: What impact do you think a project like this could have in the Mediterranean Union?
Gloser:
I think the partnership approach that we have taken could well have a positive influence of stability for the countries taking part as well as the neighbouring nations. The EU has been enlarged and come closer together in the past decades but there hasn’t been as much of that among Arab countries. Perhaps it would be possible through certain projects, such as this project or water projects or transportation routes, to increase the cooperation among those countries.

Question: There have been fears expressed that Europe would be exploiting natural resources in Africa, raising fears of a new sort of ‘colonisation’. What would you say to those fears?
Gloser:
It is not in any way an issue of the north dominating the south. It is not only the north that is interested in acquiring renewable energy but rather other users are interested. And if that mutual need for energy leads to a project that satisfies all sides then that is in my view a good route to take. I don’t think there’s any justification for the notion of this being an ‘energy colonisation’ or anything like that at all. It’s a mutually beneficial project.”

Question: How high is the interest in other countries? Some cynics would say Germany’s expertise in renewable energies gives it a big advantage.
Gloser:
So far the countries in the south and north have been in agreement about the project. Now the task is to identify the next steps. There are countries in both the south and north that are more interested in the project than others — because, for example, they already have had positive experiences with renewable energy. That is not only Germany but also Spain and other countries. And on the other side of the Mediterranean there are countries that will have more interest at first than others.

Question: Some might see this project somewhat cynically as a vehicle to help German companies that already have such a considerable head start in know-how with renewable energy. What would you say to them?
Gloser:
Obviously there are some important players (in Germany). But they are not only in Germany. Certainly we have built up a renewable energy sector in Germany, thanks to the right political framework a decade ago, that has created an enormous number of jobs. But Spain has also had an enormous development in recent years and in Denmark the wind energy sector has reached a large dimension with considerable know-how. But beyond those countries there are many other countries with companies and suppliers for the industry.

Question: Are there problems on the horizon being overlooked?
Gloser:
In my eyes the biggest problem right now is that the expectations have possibly been raised too high. I’m someone who’s thought: that’s a great idea and why don’t we take advantage of all these things at hand: know-how, sun belt, political cooperation, development, stability, security, partnership. There are so many positive aspects that come together. Now it’s time to come up with some realistic timetables and see how we can move forward step-by-step to make this project a reality.

PHOTO: Mirrors are seen channelling sunlight onto a tube filled with oil during the dedication of Acciona’s Nevada Solar One power plant in Boulder City, southeast of Las Vegas February 22, 2008. The 400-acre, 64-megawatt, concentrating solar power (CSP) plant is the third largest in the world, according to Acciona. The plant produces energy to power about 14,000 homes. REUTERS/Las Vegas Sun/Steve Marcus

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Another reason for angry teenagers – in the shower

Other than pounding on the bathroom door, there is little one can do to get family members (read teenagers) to take shorter showers. But with possibly coming down the pipeline in California’s third year of drought,  one Denver-based company said it has the invention that will help households get through these dry times: the Shower Manager.

The Shower Manager can be programmed to run for five, eight or 11 minutes at full flow. After a warning beep it cuts the flow by two-thirds, just enough to rinse. Five minutes have to pass before it can be reset – an eternity in a shower.

One satisfied customer, Lisa J, was quoted by the company as saying her kids ”call it the Shower Nazi.” The Web site claims a family of four (including two teens) can save $400 annually in water and heating costs – compared to the product’s online price of $125.

There is a cheaper alternative to promoting — though not enforcing — shorter showers. For $15.50, you can get a shower timer in the shape of a duck, a turtle or a star. One person on flickr showed their duck timing a 3 minute shower, prompting the comment (from a teen?): “Woah! I would have a hard time with three-minute showers.”

Photo credit: Reuters/Mark Blinch (A woman takes a shower in a Toronto gym.)

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Flood protection ‘needs doubling’

y Richard Black Environment correspondent, BBC News website
One in six homes in England is at risk of flooding, says the Environment Agency, and climate change will raise that number without better protection.
The agency calculates that funding for projects that protect communities from flooding from rivers and the sea needs to double to £1bn annually by [...]

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