Engine Pressure Ratio

Рет қаралды 15,060

Roddy Mc Namee

4 жыл бұрын

This video explains what Engine Pressure Ratio is and how it is measured.

Пікірлер: 36

@saabviggen4069 Жыл бұрын

Great video, glad AgentJayZ sent me over.

@RoddyMcNamee Жыл бұрын

Very gratified to hear AgentJayZ sent you over.

@rebeccaleon4473 3 жыл бұрын

Great explanation!

@davidwallace5738 Жыл бұрын

Great explanation sir. Thank you.

@martind.799 4 ай бұрын

Thanks, short and to the point. Exactly what I was looking for 👍

@danielbotes2161 Жыл бұрын

This was an excellent explanation, thank you very much!

@greyjens444 3 жыл бұрын

Hey, thanks for making this i needed to see this very helpful video

@P61guy61 Жыл бұрын

Thank you for posting

@naturallyherb Жыл бұрын

Very cool!

@tylercarrington4369 2 жыл бұрын

Thanks for this !

@brabhamfreaman166 7 ай бұрын

AgentJayZ suggested your video for explanation of EPR - sure glad he did. Your models are crystal clear and diagram’s extremely elucidating. You’ve just gained a subscriber - speaking of which, you should have many multiples more for explaining something so complex in such clear terms so quickly and easily! Thanks so much, from a friend across the Irish Sea. 🫡 🙏 👊

@RoddyMcNamee 7 ай бұрын

Thank you so much for the kind words.

@DreamlinerB777 3 жыл бұрын

Very helpful!

@11Petrichor 2 жыл бұрын

Thanks!

@huzaifarashid1 Жыл бұрын

Great video mate.. Regards from Agent JayZ

@belavarga7734 4 ай бұрын

P9 is total pressure and it is almost the same as P8 (a bit less due to the pressure loss in the nozzle).

@fviana7758 3 жыл бұрын

Thx

@Kargoneth Жыл бұрын

Recommended by AgentJayZ on his "What is EPR and why is it used?" video. About to watch.

@Kargoneth Жыл бұрын

Was a good synopsis.

@Kargoneth Жыл бұрын

If I understood AgentJayZ's video correctly, then, given your diagram numbers, the EPR should be P8/P3 (maybe P8/P2), because both P1 and P9 should be close to ambient pressure and would not produce a useful EPR.

@RoddyMcNamee Жыл бұрын

@@Kargoneth if the exhaust nozzle is choked, P9 will be above atmospheric pressure and the “choked nozzle thrust” will be An x (P9 - P1), where An is the cross sectional area of the nozzle.

@DystopicEdits 2 жыл бұрын

What devices are used to measure these pressures? I'm thinking probes installed in the engine inlet?

@micstonemic696stone Жыл бұрын

AgentJayZ recommended your video on EPR, thanks for doing it explaining P 0, P 9 i think well made cheese fella

@jeffmccloud6999 Жыл бұрын

Excellent video! Agent Jay Z gave you a real nice shoutout.

@RoddyMcNamee Жыл бұрын

Thanks Jeff. It's very gratifying to be mentioned by Agent Jay Z. I'm one of his subscribers and really admire what he does.

@fatihbengi1763 8 ай бұрын

Çok iyisin bro

@peterkiddey6920 3 жыл бұрын

Very clear explanation, but is it not usually P2 (compressor inlet Pressure) as opposed to P1?

@raveena3232 2 жыл бұрын

This engine has more stages so the names here are different but it’s is essentially the same as P5/P2 ie the ratio of LP Turbine exhaust Pressure to Engine Inlet Pressure.