Week 9 - Parametric study on Gate valve.
|
S.No |
Lift of Gate Valve (mm) |
Pressure inlet (Pa) |
Outlet pressure(Pa) |
Outlet mass flow rate (Kg/s) |
Flow coefficient Cv |
Flow factor Kv=0.862Cv |
|
1. |
10 |
9.81 |
0 |
0.147 |
0.0469 |
0.0404 |
|
2. |
20 |
9.529 |
0 |
0.237 |
0.0767 |
0.0661 |
|
3. |
30 |
8.945 |
0 |
0.353 |
0.118 |
0.1017 |
|
4. |
40 |
8.23 |
0 |
0.4618 |
0.1609 |
0.1387 |
|
5. |
50 |
7.43 |
0 |
0.5585 |
0.2048 |
0.1766 |
|
6. |
60 |
6.557 |
0 |
0.6655 |
0.3905 |
0.3366 |
|
7. |
70 |
6.064 |
0 |
0.6845 |
0.2779 |
0.2396 |
|
8. |
80 |
5.218 |
0 |
0.7578 |
0.3317 |
0.285 |
Conclusion
- Flow coefficient and flow factor increases with increase in opening the percentage of gate valve.
- Differential pressure decreases with increase in opening percentage.
- Velocity contour planes shows that the value of velocity at the middle of plane increases with increasing the percentage of opening.