Friday, February 21, 2014

Hampton, VA Research Center NASA Lange Li Bush Bunnell (Dennis miscibility table Bushnell) believes

Gao Zhan NSC platform Material Science Teaching Resources UK Cranfield University Aerospace Engineering scientist Boer (Ian Poll) said that all aircraft are replaced with lightweight metal composite materials, will be twenty-five percent reduction in fuel dosage. 2009 will be open seven hundred eighty-seven Boeing aircraft fuselage will be entirely made of carbon fiber reinforced plastic, half the weight of the aircraft is a composite material. Last October Airbus A three hundred eighty sail, some body part is called "GLARE" composite miscibility table material, which is used resin staggered thin aluminum and glass fiber bonding made more robust and better able to impact resistance. "GLARE" may be bonded to the conductive carbon nanotubes to avoid damage by lightning. Nanotubes lighter, as the body can replace metal framework and constitutes miscibility table an external electric field barrier so-called "Faraday cage" miscibility table in the body. Logistics United Nations Intergovernmental Panel on Climate Change noted that if the global air traffic smoother, fuel use can improve performance by 12 per cent annual reduction in carbon dioxide emissions seventy-three million tons of. Geneva International Air Transport Association claimed that each flight as long as one minute to reduce flight time, can reduce 4.8 million tons of carbon dioxide annually, the current international carbon trading price of about four billion U.S. dollars. A three hundred and eighty-capacity Airbus airliner full economy class passenger capacity of eight hundred fifty three, fuel efficiency for each passenger flying one hundred kilometers need two nine liters. Boeing expects each of the next two decades, such as passenger cabin of the space will be larger than today's 25 percent. Airbus spokesman miscibility table Dupont said they believed miscibility table to reduce the impact of aviation on the environment, one way is to reduce the number of flights.
Hampton, VA Research Center NASA Lange Li Bush Bunnell (Dennis miscibility table Bushnell) believes that thanks to global satellite positioning system, there will be more personal autonomy small plane flight This small aircraft miscibility table may use a smaller fuel crisis on the environment. Flying car concept is still popular, there are many prototypes launched Woburn, Massachusetts, the company introduced a prototype car Telafujia called "Metamorphosis", usually put away the wing, expand (as depicted) flight, this land Two empty cars are expected listing in nine priced one hundred forty-eight thousand U.S. dollars. Algae fuel is currently the most appropriate aviation biofuels will not compete with food crops, as long as a large number of algae cultivation, miscibility table manufacture biodiesel can be mixed with fuel in the plane (as shown), while some companies miscibility table are committed to research algae fermentation process, hoping directly as aviation fuel. In February, Airbus consolidated using liquid fuel made from natural gas trials, as long as the future of algae, jatropha seeds, grass fuel production stable, you can combine biomass and liquid fuels. Airbus alternative fuels project miscibility table engineering director Walker (Ross Walker) predicted 二 to twenty five years of commercial flights will have twenty-five percent of the fuel from biomass; Boeing's Scott (Terrance Scott) said that although unsure whether hundred percent use of biofuels, "but this is a great fuel industry goals." Nuclear energy can completely replace the air turbine engine. The concept miscibility table first appeared 四 's, the U.S. government during the Cold War with the Soviet Union, had a history of related experiments, but some have criticized the nuclear-powered aircraft if the crash risk is too high. Last December, the association APAME France 圣皮耶达捷松 the promotion of electric aircraft first flight full use of lithium polymer batteries aircraft Electra, driving Van Damme (Christian Vandamme) predicted that the battery-powered four-seater aircraft, within a decade put the listing, and follow-up will further develop the maximum capacity of twenty small commuter aircraft. 2000 EU cooperation with Airbus, began a hydrogen-powered aircraft project, but has not yet been successful, because there is no adequate hydrogen fuel technology. Boeing is using a small experimental aircraft to test fuel-cell technology, is expected to be available even fifteen miscibility table to twenty years. , A fully manned solar aircraft "Solar power" and is expected miscibility table 九年 flight around the world non-stop day and night. (See "Knowledge Communications Review" sixty-six <no energy flight Dream ") in addition miscibility table to plans to study the feasibility of using the global cargo transport spacecraft. Today turbine engine turbofan engines of similar size and engine speed are the same. However, when the high-speed miscibility table performance of the highest turbine engine turbofan better performance at low speed, use gear that allows the turbine speed is much larger than the turbofan, so even turbofan increases, also without a substantial increase miscibility table in the power turbine. To ensure that the majority of large turbofan propulsion from the air, to avoid the phenomenon of internal combustion engine part. Connecticut is developing engine manufacturer Pratt & Whitney Geared Turbofan initial energy savings of 15 percent after coming into operation, the annual saving to improve one percent. Mitsubishi will use this engine in the regional jet, the Canadian aerospace miscibility table company Bombardier C Series aircraft also will be used, both expected in the second 一 three years in the market. Another way is to use the open-rotor turbofan, no external shell cover, which reduces a lot of resistance. But you must use the large turbofan, increasing spiral blade will offset energy savings and noise greatly.
Wing to improve air power to save fuel, most likely from the new wing. Currently miscibility table developing a hybrid wing body (pictured) to replace the existing airframe and wing design. The tubular body of the wing will only be applied to the existing constitution resistance, do not provide buoyancy. Hybrid design removes the tubular body, passengers sitting in the wings, but no window to look out. From the overall buoyancy of the aircraft structure, miscibility table and compared to the traditional design, the body surface to reduce the air mixed in the contact area, the resistance can be reduced, and the wing and the air friction. Cambridge University and the Massachusetts Institute is conducting "quiet aircraft program," miscibility table the use of hybrid wing body and isolate the engine from the bottom, on the one hand to improve air power, on the other hand almost to zero decibels of noise, miscibility table but also save fuel.
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