Week 9 - Parametric study on Gate valve.

Aim:To perform a parametric study on the gate valve simulation

Objectives:

• Perform a parametric study on the gate valve simulation by setting the opening from 10 % to 80%.
• Obtain the mass flow rates at the outlet for each design point.
• Calculate the flow coefficient and flow factor for each opening and plot the graph.
• Discuss the results of the mass flow rate and flow coefficient.

Procedure:

Introduction:

Gate valve :

A gate valve can be defined as a type of valve that uses a gate or wedge type disk,and the disk moves perpendicular to flow to start or stop the fluid flow in piping .A gate valve is the most common type of valve used in any process plant .It is a linear motion valve used to start or stop fluid flow.

MESHING :

Conclusion:

• The mass flow rate is increases if we increase the gate valve opening (gate disc lift) .
• The velocity of the flow is also increases when we increase the gate disc lift of gate valve.
• The pressure drop is decreases when we increase the gate disc lift of gate valve.
• The graph of flow factor and flow coefficient with respect to lift of the gate valve is plotted.
• The gate valve opening is increases then flow coefficient and flow factor is also increases.
• The design point 70mm and 80 mm is not calculated because result obtained is not accurate.the reason behind that is the bug in ansys student version.