20. Flow Control Valves
The chapter focuses on fluid mechanics, particularly on understanding flow control through various types of valves and the application of mass conservation, energy loss, and Bernoulli’s equation in pipe flow systems. Key aspects include managing flow energy losses due to different fittings and configurations and applying these principles to real-world fluid systems effectively.
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Sections
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What we have learnt
- Understanding the role of valves in controlling fluid flow.
- The importance of energy loss analysis in fluid systems.
- Applicability of Bernoulli’s equation and momentum conservation in practical scenarios.
Key Concepts
- -- Bernoulli's Equation
- An equation that relates pressure, velocity, and height in a flowing fluid, incorporating energy losses in system designs.
- -- Energy Loss Coefficient (K)
- A value that quantifies the energy losses in a system due to fittings and configurations in fluid flow, affecting system efficiency.
- -- Control Volume
- A defined region in fluid mechanics used to analyze the mass and energy transfer across its boundaries.
- -- Reynolds Number (Re)
- A dimensionless quantity that helps predict flow patterns in different fluid flow situations, determining whether flow is laminar or turbulent.
- -- Hydraulic Gradient
- A line representing the energy head of water flows, showing the relationship between the pressure head, elevation head, and velocity head at different points in a system.
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