Whats a delta pressure?

Question

Whats a delta pressure?

Answer 1

Delta Pressure,

(aka Delta P ): Describes the pressure drop through a component and is the difference in pressure between two points,.

Answer 2

delta pressure is justa fancy, shortened way of saying differential pressure. It's used in the aircraft world alot

Answer 3

quick answer. it's the difference between the pressure inside the aircraft and the pressure outside the aircraft.

Answer 4

Delta just means difference, but I've most often seen it used in reference to cabin pressurization, where it designates the difference between inside pressure in the cabin and the air pressure in the open air outside.

Most airliners are designed for a delta pressure of slightly over 8 psi, which means that the pressure inside the cabin can be about 8 psi higher than the pressure outside.  Eight psi is about half an atmosphere.  This means, incidentally, that while an airliner is flying, there are about ten tons of air pressure pushing outward on each of the doors.

Answer 5

"Delta" is the Greek letter "D," and it stands for the Greek word "dunamis" or "dynamis," meaning "change."  In physics, "Delta" (a little triangular squiggle or a symbol similar to 'd') means "change" or "difference."

In aircraft engineering it is used in discussions of turbine engines, cabin pressurization, hydraulic systems, and other applications where changes in pressure are important.

Answer 6

delta is difference... the delta P is the pressure difference between two points.

Answer 7

delta in old language (greek) means 'change in'. pressure is verbatim pressure. so delta pressure means change in pressure. a typical delta p in the cabin at cruise altitude is around 8, which means the hull is experiencing 8 times atmospheric pressure.

Answer 8

Delta pressure most commonly refers to the difference in pressure before and after a fluid filter (oil, hydraulic, or fuel) which indicates when the filter is clogged. Most aircraft have "Delta P" indicators to show this condition.