Very Rare
Jul/100
The height at which planes fly Jet oxygen must be very rare, so the amount of oxygen needed for combustion?
A high altitude the oxygen level must be very low, combustion takes place, how is it possible at low oxygen levels?
Oxygen not uncommon that you climb, the same% of the composition of air and sea levels. Whatever happens, however, is that pressure and density in history as rises. In the cruising altitude of an airliner (35,000 feet more or less), the density Air is about 30% of what exists at sea level, but (and this is part own), this density is also a factor in the elevator which also depends on the amount of air is a provision of the pressure difference needed to fly. The solution? It flies faster. If you go faster, more air and thus more oxygen per unit of time. This is really why the airline is flying high: for they can fly more quickly. Fly faster means you get a lot of air per unit time to maintain combustion at a rate that is compatible with the push to continue to fly speed. Remember that any aircraft engine is composed of three parts: a compressor in the front (which compresses the air to reality pressure much higher than we have a sea level), a combustor and a turbine to extract power from the hot gases to drive the compressor and accessories, and other sources of energy is the power of propulsion (I simplify, double shifts are further air bypass that I through the phase of low pressure compressor). As you above, the obligation to fly faster still not enough oxygen goes above the speed of sound and long-type higher in elevation as an airplane must fly so fast and energy consumption Consequently, most engines run out of energy (And you start having other problems, such as the fuselage heatic kinetics). All those, and the fact that the compression air around the speed of sound creates a shockwave of energy that remove the wings can not be designed for, and so on, these considerations set the ceiling of a plane, the maximum altitude that can fly. Just remember one thing: if you have less oxygen, they say that only one third of the value, and does not benefit High speed factor, you can save one third as much fuel. This plan is going so well. Make sure that the pressure drops, but they always just drag the balance is not necessary to accelerate or excess energy to increase that the aircraft is at its maximum height and speed.
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