Effects of dissolved air on subcooled and saturated flow boiling of water in a small diameter tube at low pressure

Journal Article · Mon Oct 15 04:00:00 EDT 2007 · Experimental Thermal and Fluid Science

DOI:https://doi.org/10.1016/J.EXPTHERMFLUSCI.2007.01.007· OSTI ID:20961981

Cioncolini, Andrea; Santini, Lorenzo; Ricotti, Marco E ^[1]

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1. Department of Nuclear Engineering, Politecnico di Milano, via Ponzio 34/3, 20133 Milano (Italy)

Experimental results on flow boiling of air saturated water flowing through a tube of inner diameter d{sub i} = 4.03 mm are presented. Both subcooled and saturated flow boiling are investigated, covering pressures from 177 to 519 kPa, mass fluxes from 478 to 839 kg m{sup -2} s{sup -1} and heat fluxes from 210 to 736 kW m{sup -2}. By comparing the measured results with existing prediction methods derived for degassed liquids the study concludes that the presence of dissolved air in the testing fluid can be regarded as a second order effect, and no special attention to dissolved air appears required. (author)

• OSTI ID: 20961981
• Journal Information: Experimental Thermal and Fluid Science, Journal Name: Experimental Thermal and Fluid Science Journal Issue: 1 Vol. 32; ISSN 0894-1777; ISSN ETFSEO
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
AIR
BOILING
DISSOLVED GASES
HEAT FLUX
PRESSURE RANGE KILO PA
SATURATION
SIZE
SUBCOOLING
TUBES
TWO-PHASE FLOW
WATER