Pump Pam = 100 kPa D= 3 cm The pump in Fig. P3.146 draws gasoline at 20°C from a reservoir. Pumps are in big trouble if the liquid vaporizes (cavitates) before it enters the pump. (a) Neglecting losses and assuming a flow rate of 65 gal/min, find the limita- tions on (x, y, z) for avoiding cavitation. (b) If pipe fric- tion losses are included, what additional limitations might be important? Gasoline, SG = 0.68 P3.146
Pump Pam = 100 kPa D= 3 cm The pump in Fig. P3.146 draws gasoline at 20°C from a reservoir. Pumps are in big trouble if the liquid vaporizes (cavitates) before it enters the pump. (a) Neglecting losses and assuming a flow rate of 65 gal/min, find the limita- tions on (x, y, z) for avoiding cavitation. (b) If pipe fric- tion losses are included, what additional limitations might be important? Gasoline, SG = 0.68 P3.146
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Transcribed Image Text:Pump
Pm = 100 kPa
D = 3 cm
The pump in Fig. P3.146 draws gasoline at 20°C from a
reservoir. Pumps are in big trouble if the liquid vaporizes
(cavitates) before it enters the pump. (a) Neglecting losses
and assuming a flow rate of 65 gal/min, find the limita-
tions on (x, y, z) for avoiding cavitation. (b) If pipe fric-
tion losses are included, what additional limitations might
be important?
Gasoline,
SG = 0.68
P3.146
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