プール沸騰における水平細線上の限界熱流束 : サブクールの影響

概要

論文の詳細を見る
Critical heat flux (CHF) is measured during pool boiling of water and R113 on a heated horizontal wire submerged in a subcooled liquid. Experiments are conducted over a pressure range from 0.1 to 3.0 MPa and a subcooling level up to 220 K. CHF data reveal that the CHF increases in a linear fashion with an increase in the subcooling, Δ T_<sub>, and that the increment in CHF with increasing subcooling becomes large at high pressures. The CHF data at high pressures deviate from the values predicted by existing correlations, while the CHF data rises in a linear fashion with Δ T_<sub>. A new correlation is derived by taking into account the effect of both density ratio, ρL/ρV, and Peclet number, Pe, on CHF and it succeeds in predicting the CHF data up to higher pressure as well as higher subcolling better than the applicable ranges of existing correlations.
久留米工業大学の論文
1997-12-20