Abstract
Experimental results on flow boiling of air saturated water flowing through a tube of inner diameter d 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 −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.
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