Abstract
Experimental data of the critical heat flux were obtained for boiling HCFH-at high subcritical pressures flowing upward in a uniformly heated tube inclined at various angles. According to the effect of the tube inclination, the critical heat flux was classified into four characteristic regimes; the regime where the critical heat flux generally increases with the inclination angle from the horizontal position, the regime where the critical heat flux is constant independent of the inclination angle, and the other two regimes in which the critical heat flux is equal to that for the horizontal or vertical flow, respectively. The conditions of each regime were clarified and the characetristics of the critical heat flux in each regime were discussed by comparing with those for the horizontal and vertical flows. At near-vertical angles, there was found an exceptional characteristic that the critical heat flux became higher than that for the vertical flow when the mass velocity was low and the exit quality was high.
| Original language | English |
|---|---|
| Pages (from-to) | 3422-3429 |
| Number of pages | 8 |
| Journal | Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B |
| Volume | 65 |
| Issue number | 638 |
| DOIs | |
| Publication status | Published - Oct 1999 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanical Engineering
Cite this
Characteristics of critical heat flux at high pressure in an inclined tube. / Ohno, Masaki; Mori, Hideo; Yoshida, Suguru.
In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 65, No. 638, 10.1999, p. 3422-3429.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Characteristics of critical heat flux at high pressure in an inclined tube
AU - Ohno, Masaki
AU - Mori, Hideo
AU - Yoshida, Suguru
PY - 1999/10
Y1 - 1999/10
N2 - Experimental data of the critical heat flux were obtained for boiling HCFH-at high subcritical pressures flowing upward in a uniformly heated tube inclined at various angles. According to the effect of the tube inclination, the critical heat flux was classified into four characteristic regimes; the regime where the critical heat flux generally increases with the inclination angle from the horizontal position, the regime where the critical heat flux is constant independent of the inclination angle, and the other two regimes in which the critical heat flux is equal to that for the horizontal or vertical flow, respectively. The conditions of each regime were clarified and the characetristics of the critical heat flux in each regime were discussed by comparing with those for the horizontal and vertical flows. At near-vertical angles, there was found an exceptional characteristic that the critical heat flux became higher than that for the vertical flow when the mass velocity was low and the exit quality was high.
AB - Experimental data of the critical heat flux were obtained for boiling HCFH-at high subcritical pressures flowing upward in a uniformly heated tube inclined at various angles. According to the effect of the tube inclination, the critical heat flux was classified into four characteristic regimes; the regime where the critical heat flux generally increases with the inclination angle from the horizontal position, the regime where the critical heat flux is constant independent of the inclination angle, and the other two regimes in which the critical heat flux is equal to that for the horizontal or vertical flow, respectively. The conditions of each regime were clarified and the characetristics of the critical heat flux in each regime were discussed by comparing with those for the horizontal and vertical flows. At near-vertical angles, there was found an exceptional characteristic that the critical heat flux became higher than that for the vertical flow when the mass velocity was low and the exit quality was high.
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U2 - 10.1299/kikaib.65.3422
DO - 10.1299/kikaib.65.3422
M3 - Article
AN - SCOPUS:71249117399
VL - 65
SP - 3422
EP - 3429
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
SN - 0387-5016
IS - 638
ER -