A control procedure for the elimination of mal flow rate distribution in evaporating flow in parallel pipes

Yehuda Taitel*, Uri Minzer, Dvora Barnea

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Solar power plants that are based on an array of parallel parabolic trough solar collectors currently use oil as the heated fluid. Direct steam generation (DSG) has the potential of being a more efficient and less costly process owing to the elimination of oil as an indirect secondary heating medium and the elimination of heat exchanges and extra equipment needed for the transfer of heat from oil to water/steam. Unfortunately the use of DSG may possess problems regarding undesired flow distribution among the parallel pipes as well as possible flow instabilities. In this work we propose a control procedure that can adjust the flow rate in each of the parallel pipes to a desired quality at the pipes exit.

Original languageEnglish
Pages (from-to)329-335
Number of pages7
JournalSolar Energy
Volume82
Issue number4
DOIs
StatePublished - Apr 2008

Keywords

  • Direct steam generation
  • Evaporation
  • Parallel pipes
  • Two-phase flow

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