Table of Contents
- 1 How toxic is jet exhaust?
- 2 What are the likely dangers of jet aircraft engines?
- 3 How does an aircraft exhaust system affect the engine performance?
- 4 How hot is jet engine exhaust?
- 5 How fast does the exhaust leave a jet engine?
- 6 Why are jet engines mounted above the wings of planes?
- 7 What are the health effects of exhaust from military vehicles?
- 8 What are the advantages of tail fuselage and under wing?
How toxic is jet exhaust?
Toxic pollutants kill at least ten thousand annually, study says. Airplane exhaust, like car exhaust, contains a variety of air pollutants, including sulfur dioxide and nitrogen oxides. (Related: “Pollution Can Change Your DNA in 3 Days, Study Suggests.”)
What are the likely dangers of jet aircraft engines?
The principal hazards from fuels in aircrafts are:
- Pressurised fuel lines.
- Fuel remaining within the fuselage and aircraft fuel tanks.
- Varying degrees of flammability depending on the type of fuel.
- Extreme radiated heat.
- Escaping fuel creating running fuel fires and pool fires.
- Pools of fuel not on fire.
- Jettisoned fuel tanks.
What is jet engine exhaust called?
jet efflux Also called jet blast and jet engine exhaust.
How does an aircraft exhaust system affect the engine performance?
As opposed to simpler automobile exhaust systems, aircraft exhaust systems perform two important functions. First, it vents exhaust gases away from the engine and fuselage while reducing noise. Secondly, the aircraft exhaust system indirectly supplies cabin and carburetor heat.
How hot is jet engine exhaust?
With afterburners on, the exhaust temperature can be as much as 1400-1500ºC. The turbine inlet temperature is a different thing, and modern engines have a limit of around 1200ºC.
What does jet exhaust smell like?
It smells like kerosene, because it is kerosene. Jet A is just super pure kerosene, filtered to be free of waxes and other things that would cause it to thicken and gel at the temperatures experienced in the flight levels. Sometimes there is an additive called Prist added to to it prevent microbial growth.
How fast does the exhaust leave a jet engine?
Thrust is coming from two components in the turbofan: The gas turbine itself – Generally a nozzle is formed at the exhaust end of the gas turbine (not shown in this figure) to generate a high-speed jet of exhaust gas. A typical speed for air molecules exiting the engine is 1,300 mph (2,092 kph).
Why are jet engines mounted above the wings of planes?
Mounting jet engines above the wings (see: Antonov An 72, Boeing YC-14) takes advantage of the Coandă effect to increase lift and improve short-field takeoff and landing performance. The high-velocity engine exhaust (I’m hand-waving a bit here) adheres to the surface and allows the wing to produce lift somewhat longer than it could otherwise.
What is the purpose of a high-velocity exhaust?
The high-velocity engine exhaust (I’m hand-waving a bit here) adheres to the surface and allows the wing to produce lift somewhat longer than it could otherwise. This layout also vastly reduces the amount of debris and spray that can reach the intakes and damage the engines.
What are the health effects of exhaust from military vehicles?
Exhaust from military vehicles and aircraft may also include known or suspected cancer-causing substances such as benzene, arsenic, and formaldehyde. The exhaust may also contain harmful pollutants that are frequent components of urban smog, such as nitrogen oxides. WHAT ARE THE HEALTH EFFECTS OF DIESEL, JP-8, AND JP-5 EXHAUST?
What are the advantages of tail fuselage and under wing?
Fuselage: Good for poor quality runways or low approach speeds but can add weight in reinforcing the tail. Under the wing: Good for getting more load as less center of gravity issues, but raises approach speeds. For tail side-mounted: I think there are issues with airflow to engines at certain angles, reducing stall-recovery options.