START UP PRESSURES IN SHORT PUMP DISCHARGE LINES

Critical transient pressures may occur during normal start-up in pump discharge lines not provided with control valves. Requirements for the computation of these transient pressures are described and a method of analysis is presented in the form of an example problem. The special terms, total start-up time, short pipeline and potential start-up head are defined and analyzed. Alternative methods of calculating or estimating the time for pump to reach rated speed are described. Differences in pressures for short and long pipelines are reviewed.

• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • JOSEPH, I
  • Hamill, F A
• Publication Date: 1972-7

Media Info

• Pagination: p. 1117-25
• Serial:
  • Journal of the Hydraulics Division
  • Volume: 98NH
  • Issue Number: Y7
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Hydraulics; Pipe flow; Pumps
• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00034916
• Record Type: Publication
• Source Agency: United States Merchant Marine Academy
• Files: TRIS
• Created Date: Oct 27 1972 12:00AM