Heat Transfer in Direct Contact Condensation of Steam to Subcooled Water Spray-Reference-Cited by-同舟云学术

Heat Transfer in Direct Contact Condensation of Steam to Subcooled Water Spray

Published:2001-01-30 Issue:4 Volume:123 Page:703-710
ISSN:0022-1481
Container-title:Journal of Heat Transfer
language:en
Short-container-title:

Author:

Takahashi Minoru¹,Nayak Arun Kumar²,Kitagawa Shin-ichi³,Murakoso Hiroyuki³

Affiliation:

1. Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8550, Japan

2. Reactor Engineering Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India

3. Department of Nuclear Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8550, Japan

Abstract

The condensation heat transfer of saturated steam to a hollow-cone spray of subcooled water was investigated experimentally and analytically. The spray water temperature rose more steeply in flow direction than those in the previous studies, because of the use of smaller thermocouple which was capable of measuring the temperature in a thin water sheet and water droplets more accurately. The result of the condensation heat transfer coefficient suggested the breakup of the water sheet into droplets. A pure conduction model underpredicted the heat transfer in the sheet region significantly, which was better predicted by considering turbulence in the sheet. The heat transfer in the droplet region was well estimated by considering internal circulation and mixing inside the droplets.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

http://asmedigitalcollection.asme.org/heattransfer/article-pdf/123/4/703/5912331/703_1.pdf

Reference18 articles.

1. Brown, G., 1951, “Heat Transmission by Condensation of Steam on a Spray of Water Drops,” Proc. of General Discussion on Heat Transfer, Institution of Mechanical Engineers.

2. Lekic, A., and Ford, J. D., 1980, “Direct Contact Condensation on a Spray of Subcooled Liquid Droplets,” Int. J. Heat Mass Transf., 23, pp. 1531–1537.

3. Sundararayan, T., and Ayyaswamy, P. S., 1984, “Heat and Mass Transfer Associated with Condensation of a Moving Drop: Solutions for Intermediate Reynolds Numbers by a Boundary Layer Formulation,” ASME J. Heat Transfer , 107, pp. 409–415.

4. Sundararayan, T., and Ayyaswamy, P. S., 1985, “Hydrodynamics and Heat Transfer Associated with Condensation on a Moving Drop: Solution for Intermediate Reynolds Numbers,” J. Fluid Mech., 149, pp. 33–58.

5. Chung, J. N., and Chang, T. H., 1984, “A Mathematical Model of Condensation Heat and Mass Transfer to a Moving Droplet in its Own Vapor,” , 106, pp. 417–424.

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