Mumbai University > Electronics and telecommunication > Sem 7 > Applied Hydraulics

Marks: 05

Years: DEC 2014

Following are the three important unit quantities which must be studied under unit head :-

1. Unit Speed : It is defined as the speed of a turbine working under a unit head (i.e. under a head of im) It is denoted by $'N_u'$ is obatined as

$N_u=\dfrac {N}{\sqrt H}$

1. Unit Discharge : It is defined as the discharge passing through a turbine, which is working under a unit head (i.e. im) It is denoted by the symbol $'Q_u'$. The expression for unit discharge is given as

$Q_u= \dfrac Q{\sqrt H}$

1. Unit Power : It is defined as the power developed by a turbine, working under a unit head (i.e. under a head or im). It is denoted by the symbol $'P_u'$ The expression for unit power is obtained as

$P_u=\dfrac P{H^{3/2}}$