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.
@@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.
I was not sent by AgentJayZ but he is a master also. So, it is a great job what you have done. Thanks for sharing knowledge great community. You mentioned at around 1:38 that burned air expands when it pass through turbines but if it is the case it should be pressurized as the expanded air lose its speed. But at that stage the aim is to gain speed by compromising pressure. Did i miss something? I would be appreciated if you explain it.
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. 🫡 🙏 👊
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.
Great video, glad AgentJayZ sent me over.
Very gratified to hear AgentJayZ sent you over.
Thanks, short and to the point. Exactly what I was looking for 👍
Very cool!
AgentJayZ recommended your video on EPR,
thanks for doing it explaining P 0, P 9 i think
well made cheese fella
Hey, thanks for making this i needed to see this very helpful video
Great video mate.. Regards from Agent JayZ
This was an excellent explanation, thank you very much!
Recommended by AgentJayZ on his "What is EPR and why is it used?" video. About to watch.
Was a good synopsis.
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.
@@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.
I was not sent by AgentJayZ but he is a master also. So, it is a great job what you have done. Thanks for sharing knowledge great community. You mentioned at around 1:38 that burned air expands when it pass through turbines but if it is the case it should be pressurized as the expanded air lose its speed. But at that stage the aim is to gain speed by compromising pressure. Did i miss something? I would be appreciated if you explain it.
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. 🫡 🙏 👊
Thank you so much for the kind words.
Excellent video! Agent Jay Z gave you a real nice shoutout.
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.
P9 is total pressure and it is almost the same as P8 (a bit less due to the pressure loss in the nozzle).
Thank you for posting
Great explanation sir. Thank you.
Great explanation!
Thanks for this !
Very helpful!
Çok iyisin bro
Thanks!
What devices are used to measure these pressures? I'm thinking probes installed in the engine inlet?
🙏
Very clear explanation, but is it not usually P2 (compressor inlet Pressure) as opposed to P1?
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.
Thx
Hi, can you disclose which tool you use to create these videos?
Microsoft Powerpoint.
Thank You@@RoddyMcNamee
AgentJayZ sent me.
Found my way here from Agent Jay Z
I don't think it is precise. There are considerable problems with it.