Head Loss Formula (Darcy-Weisbach):
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Definition: Head loss refers to the reduction in hydraulic head (pressure) that occurs in a copper pipe due to friction between the fluid and the pipe walls.
Purpose: This calculator helps engineers and plumbers determine pressure drops in copper piping systems for proper system design.
The calculator uses the Darcy-Weisbach equation:
Where:
Explanation: The equation calculates energy loss due to friction in the pipe based on flow characteristics and pipe dimensions.
Details: Accurate head loss calculations ensure proper pump sizing, maintain adequate pressure throughout the system, and prevent flow issues in copper piping networks.
Tips: Enter the friction factor (default 0.0025 for copper), pipe length, flow velocity, gravity (default 9.81 m/s²), and pipe diameter. All values must be > 0.
Q1: What's a typical friction factor for copper pipes?
A: For smooth copper pipes, the friction factor typically ranges from 0.001 to 0.005 depending on flow conditions.
Q2: How do I find the flow velocity?
A: Velocity = Flow Rate / Pipe Cross-Sectional Area. Use our Flow Rate Calculator if needed.
Q3: Does this account for fittings and valves?
A: No, this calculates straight-pipe friction loss only. Additional losses from fittings require separate calculations.
Q4: What units should I use?
A: Consistent SI units are required (meters, m/s, etc.) for accurate results.
Q5: How does pipe diameter affect head loss?
A: Head loss decreases significantly with increasing pipe diameter (inverse relationship).