An investigation of direct condensation of steam jet in subcooled water

The NEPTUNE project constitutes the thermal-hydraulic part of the long-term Electricite de France and Commissariat a l’Energie Atomique joint research and development program for the next generatio...

NEPTUNE : A new software platform for advanced nuclear thermal hydraulics

(An) investigation of direct condensation of steam jet in subcooled water = 과냉각수에 분사된 증기제트의 응축에 관한 연구

Direct contact condensation and momentum transfer in turbulent separated flows

A Large Interface Model for two-phase CFD

Condensation of steam on a subcooled water layer was studied in a cocurrent horizontal channel at atmospheric pressure. The heat transfer coefficients were found to vary from 1.3 kWS/m/sup 20/C to 20 kW/m/sup 20/C, depending on whether the liquid interface was smooth or wavy, increased with increasing steam flow rates and water flow rates. For all cases, 50 to 90 percent of the steam condensed within 1.2 m from the entrance. The average Nusselt numbers were correlated with average steam and water Reynolds numbers an average liquid Prandtl numbers, for both smooth and wavy interface flows. Finally, a correlation of the average heat transfer coefficient and condensation rate for wavy interface flow was obtained as a function of inlet conditions and distance downstream.

I. S. Lim

Papers

Condensation Measurement of Horizontal Cocurrent Steam/Water Flow