Water Droplet Size Measurements in an Experimental Steam Turbine Using an Optical Fiber Droplet Sizer

[+] Author and Article Information
K. Tatsuno

Research and Development Center, Toshiba Corporation, Kawasaki, Japan

S. Nagao

Keihin Product Operations, Toshiba Corporation, Yokohama, Japan

J. Heat Transfer 108(4), 939-945 (Nov 01, 1986) (7 pages) doi:10.1115/1.3247038 History: Received September 25, 1985; Online October 20, 2009


An optical fiber droplet sizer which is applicable to droplet size measurements in a steam turbine has been developed. This sizer uses the forward scattering method. The performance of the droplet sizer was verified by 0.1–5.7 μm average diameter polystyrene particles. Using this sizer, droplet size measurements were made at the last stage moving blade outlet in a 10 MW experimental steam turbine. Average diameters between 0.2 and 1.0 μm, which depend on wetness (6–14 percent) and locations in the radial direction of the blade, were obtained.

Copyright © 1986 by ASME
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