Abstract
In this paper, an improvement of heating method for measuring wetness of the flowing wet steam is developed, the basic principle of the heating method is presented and the mathematical model has been built for analyzing the thermodynamics problems during the process of heating. Moreover, an instrument for measuring wetness of wet steam flow was designed and made out. This instrument has been used for measuring wetness of the wet steam flow at the outlet of the nozzle rig in Thermal Turbine Laboratory, Xi’an Jiaotong University. By analyzing the relative error of the result, it was found that this instrument has fairly high accuracy, it can be used as the prototype of practical instrument and has an important applicable value in engineering.
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Walter, P.T. and Skingley, P.C. “An Optical Probe for Measuring the Wetness and Droplet Size of Wet Steam Flow in LP Turbine,” Instn. Mech. Engrs., (1979).
Moore, M.J. and Sievering, C.H. “Two-Phase Steam Flow in Turbine and Separators,” McGraw Hill, (1976).
Moore, M.J. and Langford, R.W., “The Measurement of Steam Wetness Fraction in Operating Turbines,” Sixth Thermodynamic and Fluid Mechanics Convention, Instn. Mech. Engrs, (1971).
Li, Y.F. “Study of the Wetness Measurement Equipment for the Flowing Wet Steam by Heating Method,” Thesis for Master of Xi’an Jiaotong University, (1996).
Forslund, R.P. and Rosenhow, W.M. “Dispersed Flow Film Boiling,” Journal of Heat Transfer, Trans. ASME, Nov., pp399–407, (1968).
Baumeister, K.J. Hamill, T.D. and Schoessow, G.J. “A Generalized Correlation of Vaporization Times of Drops in Film Boiling on a Flate Plate,” US-AICHE No. 120, 3rd International Heat Transfer Conference and Exhibition, August 7–12, (1966).
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Li, YF., Wang, XJ. & Xu, TX. Improvement of heating method for measuring the wetness of flowing wet steam. J. of Therm. Sci. 7, 202–208 (1998). https://doi.org/10.1007/s11630-998-0017-x
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DOI: https://doi.org/10.1007/s11630-998-0017-x