Question

Explain chemistry in airplanes (essay format 5-6 paragraphs)

Answer 1

The Body of the plane The body of the Airplane is made wp Aluminium ,steel, titanium or Magnesium The metals are qood for buildin the outside of a plane because they are malleable Letting them be bent tlhere they are needed to be to make the plane aerodynamic) but strong to hold the plane shape » An average plane lasts about 45 years, Well main tained . "The parts r these p lanes cled metals ormally made rec bo keep the building process éco- friendt reš -- Aircraft tires are made in q similar way to the off road earth mover hires They have more natural rubber in them to reflect heat. Aircraft tires mus be able to bake quick heat ups ,versus q standard tyre . Aireraft tiregsunday 28 are commonly retarted and after their gircraft s are over most Co farm waqons and their way to farm wagons and equipment because of their high oao ratings

Airplane cleanins supplies It is much ike house hold eleaning supplies,but stronger Simple qreen is a biq one .It has heen moded specificall丫 for airplanes to,really klL and stop virus'es and qerms inside to prevent plagues antpatheg The containersare to-become eco-friendly from spreadi recycled and reus e usinq and cyclin og Old airplanes parts that ere used por damo ed get sent o norm centres like alyminium rano such .The broken or over used parbs are turned into parts for cars toys soda cans and even other plane

Another example of chemistry in aviation is the development of anti-icing fluids. When an aircraft goes through a deicing procedure during snow and icing conditions, first the existing snow and ice accumulation is melted off with a heated mixture of water and ethylene glycol. If more snow or icing is expected during the reasonable expected taxi time, an application of anti-icing fluid is applied to all airfoils and control surfaces.They typically use Type II and IV anti-icing fluids, which are designed to act as a barrier between the metal or composite material, and the snow and ice. They form a fairly thick layer that adheres to all surface to which they are applied.The snow and ice can still accumulate, but won't stick. The fluids are pseudoplastic, meaning they are designed to not flow and will retain their designed viscosity until a sufficient shearing force is applied to them. That happens when there is airflow over the wings exceeding a certain velocity, generally around 100 knots. The viscosity of the Anti-Icing fluid suddenly collapses, releasing all of the snow and ice that has accumulated on top of the fluid. The aircraft now continues down the runway clear of snow and ice.

The most obvious example how chemistry is used in aviation industry is the jet fuel. Modern jet engine is based on the gas turbine engine design. In fact it is really a gas turbine. Gas turbines are known to run on any fuel except solid fuels. Be it diesel, natural gas, gasoline or of course kerosene. When the gas turbine was adopted for aviation use, the choice for its fuel became narrower. This is due to several factors. One is energy content. The fuel must produce more energy per mass to increase the range of the aircraft and aviod carrying too much fuel load, because weight is the topmost consideration on powered flight. another is safety. Fuel must be not volatile liquid. A small leak on fuel line should be tolerant. Gasoline and alcohol is exempted on this. Another is the inherent lubricating properties. The fuel most be of lightly oil kind. Like diesel and kerosene. To keep pumps and even internal hydraulics keep on ticking smoothly without manually lubricating each parts. Lastly is anti freezing. Of all the requirement mentioned above the kerosene is the most ideal of them all. But still theres a problem. The invironment which airplanes operate has a freezing temperatures. Most liquids would freeze at altitude of over 10,000 feet. Add to that the fact that airplane fuel is stored on its wings. The wings makes contact with more air, so its more cold in that region. Here is where chemistry changes the tides. Jet-A fuel. This is a refined kerosene fuel with several additives that make it an ideal airplane fuel. Anti icing properties, water inhibitor, and lower flash point are some of its refined characteristics.