A solid Module 3 resource will provide (e.g., 3–10 ft/s for liquids, 20–60 ft/s for gases) and explain how to calculate the "economic pipe diameter."
The Iranian Ministry of Petroleum’s IPS‑E‑PR‑440 standard provides comprehensive guidance on process pipe sizing, covering single‑phase liquid flow, single‑phase gas flow, and two‑phase flow. Key sizing criteria include:
ΔP=ρ⋅g⋅hfcap delta cap P equals rho center dot g center dot h sub f Determining the Darcy Friction Factor ( A solid Module 3 resource will provide (e
): Fluid particles move in a chaotic, intersecting manner. This is the most common regime in industrial process piping. Darcy-Weisbach Equation for Friction Loss
Step 3: Account for Hydraulic Fittings (Equivalent Length Method) Darcy-Weisbach Equation for Friction Loss Step 3: Account
: For flanges and forged fittings, pressure design involves selecting a standard Rating Class (e.g., Class 150, 300) rather than calculating thickness. 3. Key Reference Standards and Tools
The PDF you are looking for must explain the Boardman equation or the standard ASME formula for wall thickness: 3–10 ft/s for liquids
) , which converts the restriction of a fitting into an equivalent length of straight pipe of the same diameter. 2. Comprehensive Pipe Sizing Methodology
Bernoulli’s principle relates pressure, velocity, and elevation in a flowing fluid:
For example: If a fluid initially at zero gauge pressure is pumped to a pressure of 300 kPa, then flows through 10 meters of pipe resulting in a loss of 50 kPa, the final gauge pressure at the end of the pipe is 250 kPa.