TorqueWrench
12-28-2009, 12:42 AM
I am probably seriously over thinking this and/or dealing with too much information being provided, but I have been staring at a set of plots I received to go with a compressor for a while. Only posts on the forums I can find about compressor maps are people complaining about getting the wrong one for the GT12.
Included are four maps: Insentropic Compressor Efficiency, Isentropic Efficiency, Volumetric Efficiency, and Delta Temperature. The first three are pretty self explanatory and standard to any maps I have seen, but the Delta Temperature I can't seem to find any information on.
X and Y axis are the standard vol flow rate and pressure ratios, with then power draw and compressor speed lines drawn on the plot. I then have roughly horizontal lines labeled 10, 20, 30, etc increasing as pressure ratio increases.
I guess my question is, how is this plot used? As far as I know, air temp can be roughly calculated iteratively through pressure ratio and compressor efficiency, so is this plot even needed or was it included to save time on doing calculations?
Included are four maps: Insentropic Compressor Efficiency, Isentropic Efficiency, Volumetric Efficiency, and Delta Temperature. The first three are pretty self explanatory and standard to any maps I have seen, but the Delta Temperature I can't seem to find any information on.
X and Y axis are the standard vol flow rate and pressure ratios, with then power draw and compressor speed lines drawn on the plot. I then have roughly horizontal lines labeled 10, 20, 30, etc increasing as pressure ratio increases.
I guess my question is, how is this plot used? As far as I know, air temp can be roughly calculated iteratively through pressure ratio and compressor efficiency, so is this plot even needed or was it included to save time on doing calculations?