Experimental and comparative study on the two-phase pressure drop of air-water mixture in U-bend and straight pipe annuli - Publikacja - MOST Wiedzy

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Experimental and comparative study on the two-phase pressure drop of air-water mixture in U-bend and straight pipe annuli

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In this paper, the experimental and theoretical analysis of pressure drop in singlephase and two phase-flow were presented for straight and U-bend smooth tube annulus and tube annulus with wire coil insert. Experiments for various boundary conditions were performed. In case of U-tube and straight tube with and without turbulator, tests were made for the water-water and air-water systems. The study covered a wide measuring range, i.e. Vw = 9*10-5-8.87*10-6 m3/s - for water, and Va=5.55*10-5 m3/s.-for air. The test elements were made from a copper pipe with an external diameter of 10 mm and 18 mm and wall thickness 1 mm. The helicoidal vortex generator was made from brass wire with a diameter of 2.4 mm, coil diameter 13 mm and pitch 11 mm. For these geometries, the values of pressure drop and heat flux were determined. Obtained experimental results were compared with correlations from literature. The best coherence with database were obtain for Lockhart-Martinelli and Sugawar et al. models for twophase flow regime.

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
Journal of Physics : Conference Series nr 1101, strony 1 - 9,
ISSN: 1742-6588
Język:
angielski
Rok wydania:
2018
Opis bibliograficzny:
Andrzejczyk R., Muszyński T.: Experimental and comparative study on the two-phase pressure drop of air-water mixture in U-bend and straight pipe annuli// Journal of Physics : Conference Series -Vol. 1101, (2018), s.1-9
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1088/1742-6596/1101/1/012002
Źródła finansowania:
  • Działalność statusowa
Weryfikacja:
Politechnika Gdańska

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