“Greener Aviation” Technologies and Alternative Fuels Head AIAA List of Top 10 Emerging Aerospace Technologies

June 10, 2009 at 12:43 pm

(Source: Green Car Congress)

Image: via Apture

Off late, there is a big push within the Aviation industry towards a “greener future.”   More airlines are starting to test technologies and tweak approaches (such as use of biofuels) to attract the environmentally-conscious consumer. According to 700-page Stern Report on the economics of climate change, CO2 emissions from aviation are about 600-700 megatonnes per year, or about 2-3% of total global CO2 emissions.   Giovanni Bisignani, IATA’s Director General and CEO, in his State of the Industry address at the 65th IATA Annual General Meeting and World Air Transport Summit in Kuala Lumpur said the international airline industry is committed to achieving carbon-neutral growth by 2020.

Amdist all the buzz and fervor building up around the greening of aviation, the American Institute of Aeronautics and Astronautics (AIAA),  the world’s largest technical society dedicated to the global aerospace profession, with more than 35,000 individual members worldwide, and 90 corporate members, has released its first annual list of top emerging aerospace technologies.  Developed by AIAA’s Emerging Technologies Committee (ETC), the 2009 list comprises the following:

  1. “Greener Aviation” Technologies, including emission reduction and noise reduction technologies as usedin the Federal Aviation Administration’s Continuous Low Emissions, Energy and Noise (CLEEN) program, and the European Environmentally Friendly Engine (EFE) program and “Clean Sky” Joint Technology Initiative.
  2. Alternative Fuels, including biofuels, as promoted by the FAA’s Commercial Aviation Alternative Fuels Initiative (CAAFI), and the recent FAA grant to the X Prize Foundation to spur development of renewable aviation fuels and technologies.
  3. High Speed Flight Technologies, such as supersonic and hypersonic aerodynamics, sonic boom reduction technology, and thermal management aids.
  4. Efficient Propulsion Technologies, including open rotors and geared turbofans, such as those used in the European DREAM (valiDation Radical Engine Architecture systeMs) program.
  5. Active Flow Technologies, such as plasma actuators.
  6. Advanced Materials, such as nanotechnology and composites.
  7. Active Structures, such as shape memory alloys, morphing, and flapping.
  8. Health Management, such as monitoring, prognostics, and self-healing.
  9. Remote Sensing Technologies, including unmanned aerial vehicles and satellites such as those used inNASA’s Global Earth Observation System of Systems (GEOSS) program.
  10. Advanced Space Propulsion Technologies, including plasma-based propulsion such as the Variable Specific Impulse Magnetoplasma Rocket, and solar sail technologies.

AIAA’s list reflects the expertise of the members of the Emerging Technologies Committee, as well as the results of a specially commissioned study. The ETC is composed of three technical subcommittees: Aviation, Space, and Multidisciplinary and System Technologies.  ETC chair Dan Jensen stated, “The list provides guidance to AIAA for its institute development strategy, while helping shape the annual input AIAA provides to the United States Air Force Scientific Advisory Board. The technologies listed represent the aerospace technologies in which research and technology development is most active from a global perspective.”

New York Ponders Its Place in an Electric-Car Future – Attempts to understand the dynamics of New Yorkers and electric cars

May 14, 2009 at 6:33 pm

(Source: The City Room – New York Times)

Will New York City be left behind in the era of the electric car? Or will it perhaps become the first to embrace it?

Car charging station in London

Image: Reuters - Would New York City install charging stations like the one above, in London? The Bloomberg administration has commissioned a study on electric cars in the city.

With all the hubbub over electric cars of late (covered very well by our compatriots on the Green Inc. blog), the Bloomberg administration found that the strategies that electric car manufacturers were presenting to them did not apply well to New York City. “None of them felt like they were really tailored to New York City,” said Rohit T. Aggarwala, Mayor Bloomberg’s adviser on green issues. “The fact is that most drivers live in circumstances and use their cars very differently from New York drivers.”

As a result, the Bloomberg administration plans to commission a survey to understand the dynamics of New Yorkers and electric cars, as The New York Post reported Wednesday.

One of the key differences is that many American families live in a house with a garage, which gives them a place and opportunity to charge cars when they are parked at night.

“That works most places, but at least for a large portion of New York, they don’t store it in a garage,” Mr. Aggarwala said. Many New Yorkers park on the street (and contend with alternate-side-of-the street parking rules) or in shared garages.

In addition, average Americans may use their cars almost daily, but a large number of New Yorkers own cars but do not use them every day. “Our conjecture is that for local travel, many New York auto owners use public transit,” Mr. Aggarwala said.

Mr. Aggarwala also noted that perhaps the survey could find that the regions of the city that do have homes with individual garages may prove the most fertile for electric cars, as in the rest of the country. “That would mean you wouldn’t target it in Manhattan,” he said.

At the same time, if New Yorkers largely drive within the city and use their cars for errands, they may not mind the limited range and power of the current generation of electric cars.

Different circumstances are prompting communities to embrace electric cars at different rates. China, for example, also has very different driving dynamics — short distances, lots of traffic — and the government there has gambled that those factors create a fertile environment for introducing electric cars.

Even other urban areas are very distinct from New York. San Francisco, which has begun installing electric charging stations, is still much more dependent on cars. Portland, Ore., which is also building an electric car infrastructure, has a lot of municipal garages; New York has tried to reduce their numbers. “That is not necessarily a replicable strategy for us,” Mr. Aggarwala said.

There are a host of questions, which is why the city is announcing a survey, he noted: “None of us fully understand how that plays into what it would take to get New Yorkers to use electric cars.”