Compressor inlet cooling increases the aerodynamic speed and flow and thrust.
2.
The vaporized refrigerant flows to the compressor inlet to complete the cycle.
3.
Compressor inlet cooling is used in the first case.
4.
The resulting refrigerant vapor returns to the compressor inlet to complete the thermodynamic cycle.
5.
This accessory layout, as used on centrifugal engines, restricted the area available for compressor inlet air.
6.
Figure 2 indicates how efficiency changes with an increase in the heat addition temperature for a constant compressor inlet temperature.
7.
Studying these two plots further we see that the pressure rises between the compressor inlet ( station 1 ) and compressor exit ( station 2 ).
8.
A compressor map shows that the airflow reduces with increasing compressor inlet temperature although the compressor is still running at maximum RPM ( but reduced aerodynamic speed ).
9.
Any boost pressure produced by the secondary turbocharger during the transitional stage is redirected to the atmospheric side of the compressor inlet ( between the turbos and air filter ).
10.
The engine had its starter and accessories ( fuel control, fuel pump, oil pumps, hydraulic pump, RPM generator ) mounted in the centre of the compressor inlet.
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