Green Options

A team of US scientists are working on a new generation of airborne solar cells, and expects them to power Air Force unmanned aerial vehicles (UAVs) in the near future.

The University of Washington’s Multidisciplinary University Research Initiative (MURI) project team, believe that their new breed of Dye-sensitized solar cells (DSSCs) will become an optimum energy harvesting source that may lead to longer flight times without the need to refuel.

According to lead researcher Dr. Minoru Taya, “These kinds of solar cells have more specific power convergence efficiency (PCE), very clean energy and easy scalability to a larger skin area of the craft, as well as low-temperature processing, which leads to lower costs overall.”

Earlier this week, the world’s first piloted aircraft powered solely by hydrogen fuel cells, took to the skies above Hamburg Airport, Germany, producing zero carbon dioxide emissions.

The Antares DLR-H2, jointly developed by the German aerospace centre DLR, Lange Aviation, BASF Fuel Cells and Denmark’s Serenergy, has a range of 750km (390nm) and can stay airborne for 5 hours at top flying speeds of about 90kt (170km/h).

According to DLR, a main hurdle was improving fuel cell performance capabilities and efficiency to such an extent that the motor glider could take off using fuel cell power alone. DLR’s Johann-Dietrich told reporters, “This enables us to demonstrate the true potential of this technology.” (see more pictures after the jump).

At the Eco-Aviation Conference in Washington, Air New Zealand’s Chief Pilot Captain David Morgan announced the company’s findings on a test flight from last December. Powered by a combination of biofuel and jet fuel, the test resulted in a fuel savings of 1.2%. It also cut CO2 emissions by over 60%!

While a 1.2% fuel savings doesn’t seem like much, that is over 1 ton of fuel!

The test was conducted using a commercial 747-400 fitted with Rolls Royce engines. Rolls Royce had certified the fuel — a 50:50 blend of standard Jet A1 fuel and synthetic paraffinic kerosene derived from jatropha oil.

Yet another product has been added to the list of new and innovative things we can make from corn. Recently, Dupont Tate & Lyle Bio Products announced that, working in conjunction with Kilfrost, a major producer of de- and anti-icing fluids for aircraft, they have come up with a new de-icer derived from non-petroleum sources – namely, corn and sugar.

Spain’s sleek new high-speed trains have stolen hundreds of thousands of passengers from airlines over the last year, slashing carbon emissions and marking a radical change in the way Spaniards travel.

Passenger numbers on fuel-guzzling domestic flights fell 20% in the year to November as commuters and tourists swapped cramped airline seats for the space and convenience of the train, according to figures released yesterday.

High-speed rail travel - boosted by the opening of a line that slashed the journey time from Madrid to Barcelona to 2 hours 35 minutes in February - grew 28% over the same period. About 400,000 travellers shunned airports and opted for the 220mph AVE trains.

Last year’s drop in air travel, which was also helped by new high-speed lines from Madrid to Valladolid, Segovia and Malaga, marks the beginning of what experts say is a revolution in Spanish travel habits.

After postponing the flight for about a month, Air New Zealand has become the first airline to test a 50/50 blend of second generation jatropha biodiesel and standard A1 jet fuel in a Boeing 747-400 passenger jet. The company has hailed the test as a milestone for commercial aviation.

The flight lasted two hours and ran one of the plane’s Rolls-Royce engines on the jatropha biodiesel blend. Air New Zealand has previously stated that they want to become the world’s most sustainable airline and hopes that by 2013, 10% of its flights will be powered by biofuel blends such as the jatropha biodiesel blend used in this test flight.

With the holidays continuing their slow march up the calendar, I know that many of you will be hitting the road to visit friends and family. This shouldn’t mean that you have to leave your craft behind. Here are some tips to make your travels more craft friendly.

Pack it to go - Grab one of your tote bags and start adding all your crafting accessories needed for your current project. For my knitting projects, I keep a small zippered pouch stocked with small scissors, a tape measure, darning needle and stitch marker. I throw that in along with my yarn, needles and my pattern.

In the air - Knitting needles, small scissors under 4 inches, and sewing needles are permitted in carry on luggage. TSA recommends that your knitting needles be made of plastic or wood/bamboo, but metal needles are permitted. They urge caution if for some reason your supplies could be constituted as weapons, and suggest you bring a self addressed stamped envelope in case your items need to be shipped, but I’ve never had an issue.

A group of students from the University of Michigan have set a new world record for the longest flight ever by a fuel-cell powered plane.

Late last month the team, known as SolarBubbles, flew the $2,500 plane (video) around a field in Milan, Michigan for a total of 10 hours, 15 minutes and 4 seconds - smashing the previous 9 hour record held by a Californian engineering company.

Aviation company to test biofuel next month using oil from jatropha trees

By Alok Jha (The Guardian) - Boeing and Air New Zealand will fly a jumbo jet powered partly by biofuel next month, the two companies announced on the 13th.

An Air New Zealand jet will leave Auckland on December 3 with a 50-50 mix of jet fuel and oil from jatropha trees, in one of its four engines on a flight designed to show that jatropha biofuel is suitable for use in aviation as well as economical to produce.

“This flight strongly supports our efforts to be the world’s most environmentally responsible airline,” said Rob Fyfe, chief executive of Air New Zealand. “Introducing a new generation of sustainable fuels is the next logical step in our efforts to further save fuel and reduce aircraft emissions.”

On December 3rd, Air New Zealand will be the first commercial airline to power one of its jets with a second generation non-food biofuel made from the Jatropha plant. Jatropha is viewed as having a huge potential as a major source of oil for sustainable biofuel production.

Okay. Let me get this one out of the way: gas hasn’t been all bad. In fact, gas has allowed us to accomplish some pretty amazing things. To be clear, when I say “gas,” I’m using the term as an easy way to loosely refer to all liquid fuel products made from buried and fossilized hydrocarbon deposits.

Ooooh… I can hear the flamers’ keys clicking away furiously already. But, before you type that horribly thought out gunslinging response, hear me out.