ANA is the first customer using Boeing’s 787 Dreamliner, which has been engineered from the ground up to be more cost-effective for long-haul flights.
Boeing built the jet using primarily composite materials to make key parts (such as its wings) lighter than previous airliners. A “no-bleed” systems architecture replaces most of the air-driven pumps and compressors with electrically powered alternatives -- a design that lightens the fuel load on the engines.
Fuel efficiency is top of mind for Boeing as it designs its next generation of jets. We reported last week on the new features of its next-generation 737 jet, the 737 Max. The company has taken design tactics out of the Dreamliner playbook to make the 737 jet lighter and relieve the engine’s burden. Like the Dreamliner, the 737 Max features a no-bleed electrical system and an engine that’s integrated with the wing.
I agree, Scott. At long as a barrel of oil remains above $100, we'll likely see a lot of experimenting. I can understand Saudi Arabia's interest in keeping oil bellow $80 a barrel. Their view is that if oil is below $80, we won't bother to develop alternatives.
Thanks for the feedback. Clearly, some engineers who post comments on this site do think that political barriers to engineers' ability to do their jobs is worth mentioning and even discussing, as they keep bringing it up :)
What's at least as interesting to me as this study of Americans in general is that survey we did last year about what engineers thought about bioplastics, and the positive response to at least being willing to try them out in the next five years.
Thanks for finding that survey. So, this exposes the fundamental problem with regards to sustainability, such as the use of biofuels in the article, and that is our corrupt political system. I understand that certain engineers dont' feel that this issue belongs on this site, but I totally disagree as engineering is about finding solutions, and that includes minimizing our negative effects. It seems that most Americans agree but certain special interests don't and they carry mroe weight than the voters.
I just ran across an interesting study that seems germane to some of this discussion. That is, a supposed leftist orientation of those desiring sustainable energy alternatives doesn't exist, at least among Americans in general:
I don't think that I accused you of offering a "silver bullet", but I do think that the goal must be to be energy neutral, that we do not waste any finite energy resource such as oil, coal, natural gase, etc. So, I think that a "siver bullet" should be the goal, although that will not be any one thing but an array of neutral sources, as in non-depletable, carbon-neutral, and wildlife habitat and agricultural land loss neutral.
The fact is that we need a new sustainable operational paradigm to drive reasearch and development. Currently, the "free market" paradigm has failed to ever solve a problem and until we recognize that fact we will continue to delude ourselves into thinking that it can while we crash and burn.
So, while algae may be used, so will solar derived hydrogen for use in better fuel cells, human powered technology, etc. But, we need to have a goal and currently that goal is to allow the market, which is more concerned with profit and money, the figment of the human mind, than sustainability precisely because humans are more concerned with fulfilling their desires now than ensuring a sustainable future.
Any solution to the ongoing energy conundrum will require multiple approaches. I don't think that any thoughtful individual would argue that conservation, increases in design efficiency, alternatives to fossil-fuel, point-source generation, green buildings, etc. etc. etc. should all be part of our arsenal.
No where in my posts was it my intent to offer a silver bullet.
I personally believe that burning petroleum is terribly wasteful - it's so much more useful as a raw material than as a fuel. Sad, really. The more we can replace petroleum with renewable alternatives, the better off we'll be. It's really hard to make something like ABS or Polycarbonate from plants.
But it's hardly fair or reasonable to say that simply using algae is going to eliminate this problem - we must use everything we can come up with. No single solution can supplant the current system - coal and oil will probably be a part of the solution for a while, regardless of how much we may decry it's wasteful burning.
My argument is simply that we should include algae, since it is likely the most reasonable biofuel source at this time. If we can, and I suspect we will, come up with better ways of generating chemically convertible fuel, I'll support them also - but that's a few years off.
I am not arguing with your assertion. I still say we should use algae for now. At least no one can accuse us of depleting the food supply to garner energy.
What makes this movie stand out from the typical high school sports story is that the teenagers are undocumented immigrants, and the big game is a NASA-sponsored marine robotics competition. Like many other Hollywood movies, however, Spare Parts only tells part of the story. What the film shows -- and doesn’t show -- raises important issues affecting STEM education in the US.
Instead of sifting through huge amounts of technical data looking for answers to assembly problems, engineers can now benefit from 3M's new initiative -- 3M Assembly Solutions. The company has organized its wealth of adhesive and tape solutions into six typical application areas, making it easier to find the best products to solve their real-world assembly and bonding problems.
Load dump occurs when a discharged battery is disconnected while the alternator is generating current and other loads remain on the alternator circuit. If left alone, the electrical spikes and transients will be transmitted along the power line, leading to malfunctions in individual electronics/sensors or permanent damage to the vehicle’s electronic system. Bottom line: An uncontrolled load dump threatens the overall safety and reliability of the vehicle.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.