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TECHNICAL PAPERS: Boiling and Condensation

The Use of an Organic Self-Assembled Monolayer Coating to Promote Dropwise Condensation of Steam on Horizontal Tubes

[+] Author and Article Information
A. K. Das, H. P. Kilty, P. J. Marto

Department of Mechanical Engineering, Naval Postgraduate School, Monterey, CA 93943-5100

G. B. Andeen

SRI International, Menlo Park, PA 94025

A. Kumar

Optigon Technology, Milpitas, CA 95035

J. Heat Transfer 122(2), 278-286 (Dec 23, 1999) (9 pages) doi:10.1115/1.521465 History: Received April 03, 1997; Revised December 23, 1999
Copyright © 2000 by ASME
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References

Figures

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Sketch of a condensate drop on a flat surface, and definition of contact angle
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Schematic of the experimental setup
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Schematic of the test section
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Overall heat transfer coefficient (Uo) versus coolant velocity during dropwise condensation (DWC) of steam on coated tubes
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Heat transfer coefficient versus vapor to tubewall temperature difference during dropwise condensation (DWC) of steam on coated tubes
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Photograph of dropwise condensation on self-assembled monolayer (SAM) coated copper tube under atmospheric condition. Captured from condensation video.

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