The efficiency η of a pump is defi ned as the (dimensionless) ratio of the power developed by the fl ow to the power
required to drive the pump:
η 5
Q¢p
input power
where Q is the volume rate of fl ow and Dp is the pressure
rise produced by the pump. Suppose that a certain pump
develops a pressure rise of 35 lbf/in2 when its fl ow rate is
40 L/s. If the input power is 16 hp, what is the efficiency?
Passo 1
Saaaalve, tranquilo? Vamos lá resolver mais uma questão juntos?! 😊
Os dados são os seguintes:
Taxa de fluxo:
Aumento de pressão:
Entrada de potência:
Passo 2
A gente sabe que a eficiência é
Substituindo valores: