PPRuNe Forums - View Single Post - ISA vs Altitude
Thread: ISA vs Altitude
View Single Post
Old 7th Aug 2014, 12:39
  #13 (permalink)  
Microburst2002
 
Join Date: Mar 2005
Location: Uh... Where was I?
Posts: 1,338
Likes: 0
Received 0 Likes on 0 Posts
Gysbreght, you know your staff

For turbine engines, density is one effect, temperature is another, particularly near the engine operating limit, which is what we are discussing here. That operating limit is defined by the internal temperatures within the engine, and engine performance is then a function of the ratio between gas temperature limit and ambient temperature. Therefore turbine engine performance parameters are usually normalized with ambient pressure and temperature, not just density.
Floppy, when I say
Density aside,

I mean apart from densite, or in addition to the density factor.
English is not my mother tongue, anyway

I know that density has an effect on engine performance, but temperature by itself also has an effect on engine performance. however Gysbreght explained it much better

Barit1, mass flow is mass per unit time, not volume
Microburst2002 is offline