4.2.2. Impeller outlet

Impeller backswept angle was set at 0 to minimize impeller diameter, and a lean angle of 30 was also incorporated into the design. Impeller exducer height at 13.7032 mm and impeller diameter of 257.954 mm were set by PCA Engineer's Vista CCD software impeller trailing edge that was defined as a square cutoff.

Data generated by Vista CCD tool were used to generate a 3D computer-aided design model of impeller. Inlet portion of 50 mm and horizontal was designed satisfying the diameter constraint of 280 mm.
