Jet Engine Mass Flow Rate calculation

hi
how to find air mass flow rate in jet engine?
we are using thrust/Isp equation to find the mass flow rate for rocket equation. is that any formula available for finding the mass flow rate in jet engine
 
776
9
You could start with a simple thermodynamic heat balance to get a ballpark figure.

Do you have any information on the inlet and outlet conditions or intermediate conditions like the compressor outlet to the turbine inlet?

What is the thrust/Isp equation? Can you post it?

Thanks
Matt
 
For Rocket,
Total Mass Flow rate W = F (Thrust) / Isp (Specific Impulse)
Fuel Mass Flow Rate Wf = W/(r+1)
Oxygen Mass Flow Rate Wo = W-Wf

r = fuel - oxygen mixture ratio

you have asked information about the inlet and outlet conditions or intermediate conditions like the compressor outlet to the turbine inlet.
Take on example of GE 90 - 110B and GE 90 - 110B1 engine.

the fuel flow rate for jet engine is calculated by the following equations
mfuel = Fuel flow rate=mair(f/a)/(B+1)
f/a=Cpg(To5-To4)/HV

help to fine the air mass flow rate
 

FredGarvin

Science Advisor
5,050
6

Related Threads for: Jet Engine Mass Flow Rate calculation

  • Last Post
Replies
6
Views
793
Replies
7
Views
678
  • Last Post
Replies
8
Views
3K
  • Last Post
Replies
5
Views
2K
Replies
3
Views
2K
  • Last Post
Replies
10
Views
7K
  • Last Post
Replies
8
Views
3K
Replies
19
Views
13K
Top