TFS · Hydraulic & Fluid Applications · Problem 46PDFSolution in PDF ↓
TFS · Hydraulic & Fluid Applications · Problem 46
Problem & Solution
Video Synthesis
Topic: Pump system — A piping system transports 500gpm of water from one open reservoir to another open reservoir located 80 feet higher in elevation using a single pump.
Method: The suction piping consists of 300 feet of 6 inch standard weight steel piping with 290 gail boasts and 2 gail valves.
Key values: 80 feet higher in elevation using a single pump, 300 feet of 6 inch standard weight steel piping with 290 gail boasts and 2 gail valves, 500gpm of water from one open reservoir to another open reservoir located 80 feet higher in elevation using a single pump
Reference: look up? There's nothing particularly complicated about this proble
✅ Answer: D
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Student questions asked in live office hours about this problem
OH 115
Q: When should we use the steel pipe friction loss table versus the Darcy equation—does the problem need to specify surface roughness, and how do we handle K-factors when the exact pipe size isn't listed in the table?
A: Use the steel pipe friction tables for standard weight steel piping—that's what they're designed for. For pipe sizes not in the table, using the next smaller size is conservative and acceptable; splitting the difference also works fine. Both the Darcy equation and tables are valid tools, though tables tend to be more conservative; don't worry about the percent difference since you're often working with small absolute values in large systems.