Pumping mains transport materials long distances. Pipelines transporting fluids against gravity and frictional resistance require multistage pumping. Equations for the optimal diameter and the pumping head for a single-stage pumping main are available. For multistage pumping, though, the optimal number of pumping stages are determined by an enumeration procedure. Such a process, though, does not show the functional dependence of input parameters on the design variables. This paper treats the multistage pumping main design as a geometric programming problem having a single degree of difficulty. The constant friction factor case of the problem yields a closed-form solution for a long pipeline with relatively flat topography. The variation of the friction factor with diameter is accounted for iteratively.


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  • Accession Number: 00716482
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 19 1996 12:00AM