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

TY - JOUR

T1 - Effects of dissolved air on subcooled and saturated flow boiling of water in a small diameter tube at low pressure

AU - Cioncolini, Andrea

AU - Santini, Lorenzo

AU - Ricotti, Marco E.

PY - 2007/10

Y1 - 2007/10

N2 - Experimental results on flow boiling of air saturated water flowing through a tube of inner diameter di = 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-2 s-1 and heat fluxes from 210 to 736 kW m-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.

AB - Experimental results on flow boiling of air saturated water flowing through a tube of inner diameter di = 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-2 s-1 and heat fluxes from 210 to 736 kW m-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.

KW - Dissolved gas

KW - Enhancement

KW - Flow boiling

KW - Heat transfer

KW - Noncondensable

KW - Two-phase flow

UR - http://www.scopus.com/inward/record.url?scp=34548711734&partnerID=8YFLogxK

U2 - 10.1016/j.expthermflusci.2007.01.007

DO - 10.1016/j.expthermflusci.2007.01.007

M3 - 文章

AN - SCOPUS:34548711734

SN - 0894-1777

VL - 32

SP - 38

EP - 51

JO - Experimental Thermal and Fluid Science

JF - Experimental Thermal and Fluid Science

IS - 1

ER -