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∙ 10y ago
Jets burn less fuel at higher altitudes because the air is less dense, which reduces drag on the aircraft. This means the engine doesn't have to work as hard to maintain speed, leading to greater fuel efficiency. Additionally, higher altitudes allow the aircraft to take advantage of stronger tailwinds, further reducing fuel consumption.
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What is the difference between lean burn and rich burn with regards to gas turbines?
Lean burn refers to operating a gas turbine with excess air to optimize fuel efficiency and reduce emissions, while rich burn involves adding more fuel to the combustion process to increase power output. Lean burn technology is typically used for low emissions and increased efficiency, while rich burn is used for higher power output and faster response times.
How does density of material affect burn rate?
The density of a material can affect its burn rate by influencing the amount of fuel available for combustion per unit volume. Higher density materials typically have more mass per volume, providing more fuel for combustion and potentially leading to a faster burn rate. Conversely, lower density materials may burn more slowly due to less fuel being available.
How does density affect fuel efficiency?
Higher density fuel contains more potential energy per unit volume, resulting in better fuel efficiency because more energy is available for combustion. Lower density fuel may result in lower fuel efficiency because less energy is available per unit volume, leading to a decrease in power output and increased fuel consumption.
How does the thickness of a wick affect the burning rate of a candle?
A thicker wick will generally burn faster because it can draw up more wax to fuel the flame. This can result in a larger, brighter flame. A thinner wick will burn slower as it draws up less wax, resulting in a smaller, dimmer flame.
Why does a log burn slowly and a wood splinter burms quickly?
A log burns slowly because it has a higher moisture content and is denser, requiring more heat to ignite and sustain combustion. In contrast, a wood splinter burns quickly because it is thinner, less dense, and has a lower moisture content, allowing it to ignite and burn rapidly.
Why do jets fly faster the higher they fly?
Because the higher the altitude, the thinner the air, so the less work is needed by the engines. Sometimes there is also strong tailwinds which will speed it up. Also, this burns less fuel.
Why do jets fly at the altitude they do?
It is because the higher up the plane is, the lower the air pressure. When the air pressure is lower, there are less air molecules, resulting in less friction. Therefore it uses less fuel.
What is the difference between lean burn and rich burn with regards to gas turbines?
Lean burn refers to operating a gas turbine with excess air to optimize fuel efficiency and reduce emissions, while rich burn involves adding more fuel to the combustion process to increase power output. Lean burn technology is typically used for low emissions and increased efficiency, while rich burn is used for higher power output and faster response times.
How does the size affect the flight of a rocket?
A small rocket might go higher because a smaller rocket has less weight
How high can a plane that is flying to America go?
it depends, pilots fly airplanes at different altitudes depending on the weather systems around the area at the time. Most large aircraft or jumbo jets want to fly at altitudes exceeding 25,000 feet because at higher altitudes jumbo jets burn less fuel to go the same distance that it would take if it were flying at a lower altitude. I would estimate that passenger planes fly somewhere between 30,000 feet and 40,000 feet. Jumbo jets can't fly much higher because the air will become so thin that they can't climb and more. And much lower will require more fuel because the air is more dense.
What is better a lower or higher miles per gallon?
Higher is better.. Less fuel to spend and more fuel effeciency gets u further on less.
Why are cars being designed to use less fuel and burn fuel more cleanly?
Heyy I'm dum
Is Airplane Travel more economic at higher altitudes?
Generally yes. There is less drag at higher altitudes, and thus better fuel economy, right up until the airplane can't get enough air to burn with with fuel to get the power needed to go faster and higher. Of course it takes extra fuel to get up there, so only long distance travel is done at high altitudes.
Why is kerosene used for jet fuel?
Kerosene isn't. However, jet fuel, kerosene, and diesel fuel all are very similar. They're less refined than unleaded fuel, and that reduces the risk of on-board fires, for one. Additionally, they burn at a higher BTU rate than unleaded/petrol fuels.
How does density of material affect burn rate?
The density of a material can affect its burn rate by influencing the amount of fuel available for combustion per unit volume. Higher density materials typically have more mass per volume, providing more fuel for combustion and potentially leading to a faster burn rate. Conversely, lower density materials may burn more slowly due to less fuel being available.
Is turboprop airplane less safe than jet?
It usually depends on the make. Higher end props tend to be safer than jets because of all the problems that might occur on sophosticated aircraft, such as Jets.
How many miles per gallon do commercial jets get?
A 747 gets slightly less than 1 mile per gallon of jet fuel.
