Posts Tagged ‘green engineering’

New “Green” Power Cables on the Horizon

Engineers at the University of Southampton are part of a team developing new “green” power cables which can be recycled at the end of their lives.

The project, funded by the Engineering and Physical Sciences Research Council (EPSRC) and the Technology Strategy Board (TSB) is being undertaken by a multidisciplinary team drawn from the University of Southampton’s School of Electronics and Computer Science, GnoSys UK at the University of Surrey, National Grid and Dow Chemical Company.

It is in response to a move in the UK and across Europe to place more of the power network that provides electricity to our homes and industry underground, particularly in areas of outstanding beauty and in major cities.

It is also in response to questions such as whether such cables could ever be considered to be environmentally friendly or have a low carbon footprint.

“Moreover, with the emphasis on ensuring security of supply and improving the amount of power that can be transported around the country with a cable that must operate reliably for 40 years or more, the challenge is to meet these needs and have an environmentally clean cable that can be recycled at the end of its life,” said Professor Alun Vaughan of the University’s School of Electronics and Computer Science.

Issues like these are being addressed in this new project which is developing new power cable materials and the tools to evaluate the complex and often competing factors which need to go into a full life-cycle assessment.

The aim is to determine the performance of a new design of plastic insulated cable and its impact on the environment over its complete life from raw materials, through manufacture and years of service, and finally recycling at the end of life. The outcomes of the project will allow utilities to choose the best solution for the environment and the power system.

University of Southampton (2009, April 27). New ‘Green’ Power Cables On The Horizon. ScienceDaily. Retrieved May 5, 2009, from http://www.sciencedaily.com­ /releases/2009/04/090427075557.htm


UW Engineering Students Design Plan to Save Library

As future generations turn through the pages of books at the Monroe Street Library in Madison, Wisconsin, they will have the students of Mike Oliva’s “Special Topics in Engineering” class to thank. Earlier in the year, in response to rising energy costs and a budget shortfall, library officials suggested closing or reducing the open hours at the nearly 50 year-old library. Enter Oliva’s University of Wisconsin engineering class.

The students looked at the building, and found numerous areas where energy efficiency could be improved, ranging from fluorescent light bulbs and double pane windows to placing insulation in the walls. The improvements would result in savings as high as $900 a year, and would save even more in coming years, as energy prices are expected to soar to even higher levels. UW Engineering Students Design Plan to Save Library


How to Build an Electric Car Charging Infrastructure: Smart Grids, Fast Charging and Universal Access

“Green studies are among the fastest-growing degree programs at some universities” (posted Yesterday Green Degrees Environmental Courses Signal a Shift in Learning) making the topic of electric cars one that should interest both students and professors. Engineers will most likely be behind designing and implementing the grid system that will power these cars. gas2.0 provides an idea about how that might look.


Google’s Green Energy Initiative – They are Hiring

Towards more renewable energy, posted to Google’s blog by Larry Page, Co-Founder and President of Products

Promising technologies already exist that could be developed to deliver renewable energy cheaper than coal. We think the time is ripe to build rapidly on the tremendous work on renewable energy. For example, I believe that solar thermal technology provides a very plausible path to generating cheaper electricity. By combining talented technologists, great partners and large investments, we have an opportunity to quickly push this technology forward. Our goal is to build 1 gigawatt of renewable energy capacity that is cheaper than coal. We are optimistic that this can be done within years, not decades. If we succeed, it would likely provide a path to replacing a substantial portion of the world’s electricity needs with renewable energy sources.

To lead this effort, we’re looking for a world-class team. We need creative and motivated entrepreneurs and technologists with expertise in a broad range of areas, including materials science, physics, chemistry, mechanical engineering, electrical engineering, land acquisition and management, power transmission and substations, construction, and regulatory issues. Join us. And if you’re interested, read about our previous work toward a clean energy future.

Once again the engineers leading Google show a willingness to make decisions that are unconventional. Google has shown itself to be very effective at managing engineers with great success. This will be quite a challenge but it is great to see Google taking it on. I will be surprised if there are not numerous complaints about Google losing focus. And they might but a big part of Google’s success is a willingness to challenge conventional wisdom. It will be interesting to see how this develops.

Related: Google Investing Huge Sums in Renewable Energy and is HiringThe Google Way: Give Engineers RoomMarissa Mayer on Innovation at Google


Engineering Fly Ash Bricks

Follow the “Green” Brick Road?

Each year, roughly 25 million tons of fly ash from coal-fired power plants are recycled, generally as additives in building materials such as concrete, but 45 million tons go to waste. Fly ash bricks both find a use for some of that waste and counter the environmental impact from the manufacture of standard bricks.

“Manufacturing clay brick requires kilns fired to high temperatures,” said Henry Liu, a longtime National Science Foundation (NSF) awardee and the president of Freight Pipeline Company (FPC), which developed the bricks. “That wastes energy, pollutes air and generates greenhouse gases that contribute to global warming. In contrast, fly ash bricks are manufactured at room temperature. They conserve energy, cost less to manufacture, and don’t contribute to air pollution or global warming.”

Supported by NSF’s Small Business Innovation Research (SBIR) program, Liu has been working since 2004 to develop the bricks. The first phase of support enabled him to make fly ash bricks more durable by engineering them to resist freezing and thawing due to weather. Liu is now working from a second-phase SBIR award to test the brick material’s safety and prepare it for market.


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