(b) In a De-Laval turbine steam issues from the nozzle with a velocity of $1200 \mathrm{~m} / \mathrm{s}$. The nozzle angle is $20^{\circ}$, the mean blade velocity is $400 \mathrm{~m} / \mathrm{s}$, and the inlet and outlet angles of blades are equal. The mass of steam flowing through the turbine per hour is 1000 kg . Calculate :
Explanation
The mass flow rate is given as 1000 kg/h. The density of steam can be calculated using the mass flow rate, area of the nozzle exit, and velocity of steam.
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