Page 97 - HVAC Pump Handbook

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Basics of Pump Design

94 HVAC Pumps and Their Performance

Figure 4.2 Basic centrifugal pump configurations.

designer works with during the actual design of an efficient impeller is
much more complicated, since it must take into consideration entrance
losses and other factors such as friction losses inside the impeller. The
net angle of this vector diagram is the angle at which the water leaves
the impeller and is particularly important to the pump designer because
it plays a great part in determining the efficiency of a pump. Figure 4.3
describes all of the vector diagrams that must be evaluated by the pump
designer.

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