Mechanical Engineering - Steam Nozzles and Turbines - Discussion
Discussion Forum : Steam Nozzles and Turbines - Section 1 (Q.No. 7)
7.
The rate of discharge through the nozzle __________ when the exit pressure is gradually reduced.
Discussion:
12 comments Page 1 of 2.
Kaliraj said:
5 years ago
Why not the option A. If the flow is incompressible, discharge rate depends on the velocity and cross sectional area. If area decreases, it will managed by velocity increment and vice versa.
Abhijeet kumar said:
6 years ago
Discharge of nozzle does not depend upon velocity of steam, it depends only on area of throat and initial pressure and volume.
Rizwan sheikh said:
6 years ago
The discharge is always constant.
S Bera said:
8 years ago
I think total discharge is same in all portion. Rate of discharged increase.
Lalu said:
8 years ago
Pressure drop at exit increases net pressure, thus discharge increased.
Umesh yadav said:
9 years ago
Because the discharge from the nozzle is ((2n/n-1)*pv*n/n+1*) so exit pressure and volume not affected on the discharge/ here PV is inlet pressure and volume.
Arun said:
9 years ago
But the discharge is always same.
Vichu said:
10 years ago
Due to the low cross section area of the nozzle the molecules will try to escape faster so the force of the molecules per area decreases and the speed increases therefore quantity of molecules passing per second increases.
Hitesh said:
1 decade ago
Some losses in discharge portion.
Lava said:
1 decade ago
Since if pressure decreases then velocity increases so we know that Q=Av. So velocity increases then discharge also increases.
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