Pressure drop and heat transfer characteristics of boiling nitrogen in square pipe flow

Katsuhide Ohira, Tadashi Nakayama, Koichi Takahashi, Hiroaki Kobayashi, Hideyuki Taguchi, Itsuo Aoki

Research output: Contribution to journalConference article

5 Citations (Scopus)

Abstract

Pressure drop and forced convection heat transfer were studied in the boiling nitrogen flow in a horizontal square pipe with a side of 12 mm at inlet pressure between 0.1 and0.15 MPa with a mass flux between 70 and 2000 kg/m2-s and with a heat flux of 5, 10 and 20 kW/m2. Accordingly, the flow and heat transfer mechanisms specific to square pipe were elucidated, and the applicability to cryogenic fluids of pressure drop and heat transfer models originally proposed for room temperature fluids was clarified.

Original languageEnglish
Pages (from-to)675-680
Number of pages6
JournalPhysics Procedia
Volume67
DOIs
Publication statusPublished - 2015 Jan 1
Event25th International Cryogenic Engineering Conference and International Cryogenic Materials Conference, ICEC/ICMC 2014 - Enschede, Netherlands
Duration: 2014 Jul 72014 Jul 11

Keywords

  • flow pattern
  • heat transfer
  • liquid nitrogen
  • pressure drop
  • square pipe flow
  • vapor-liquid two-phase flow
  • void meter

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Ohira, K., Nakayama, T., Takahashi, K., Kobayashi, H., Taguchi, H., & Aoki, I. (2015). Pressure drop and heat transfer characteristics of boiling nitrogen in square pipe flow. Physics Procedia, 67, 675-680. https://doi.org/10.1016/j.phpro.2015.06.114