A computational model of a power plant steam condenser which incorporates the effects of air in-leakage and removal on the performance of the condenser is reported. The condenser interior space is modeled as a porous medium. A quasi-three-dimensional approach is taken in which the steady-state steady-flow conservation equations for the steam-air mixture mass, momentum, thermal energy, and air mass fraction are solved for a series of two-dimensional grids perpendicular to the circulating water flow direction. The air removal system is explicitly modeled. The computational model is used to calculate the performance of the steam condenser of a 750-MWe unit at 100 percent load. Some of the calculated variables are compared with measurements obtained in the condenser. The effects of changing various operating parameters on the condenser performance at 100 percent load are also studied.

Issue Section:
Technical Papers
Keywords:
steam turbines, condensers (steam plant), flow simulation
Topics:
Condensers (steam plant), Pressure, Steam, Flow (Dynamics), Condensation, Water
1.
Tsou, J. L., 1990, “Condenser Performance Prediction Calculation Procedure,” American Power Conference, Chicago, IL.
2.
Tsou, J. L., 1994, “New Approaches to Condenser Performance Analysis,” American Power Conference, Chicago, IL.
3.
Al-Sanea, S., Rhodes, N., Tatchell, D. G., and Wilkinson, T. S., 1983, “A Computer Model for Detailed Calculation of the Flow in Power Station Condensers,” Condensers: Theory and Practice, The Institution of Chemical Engineers Symposium Series No. 75, Pergamon Press, pp. 70–88.
4.
Caremoli, C., 1983, “Numerical Computation of Steam flow in Power Plant Condensers,” Condensers: Theory and Practice, The Institution of Chemical Engineers Symposium Series No. 75, Pergamon Press, pp. 89–96.
5.
Pierce, D. L., and Rennie, E. J., 1993, “Improving Condenser Performance Using the EPOC Code,” EPRI Condenser Technology Conference, St. Petersburg, FL.
6.
Zhang
,
C.
,
Sousa
,
A. C. M.
, and
Venart
,
J. E. S.
,
1993
, “
The Numerical and Experimental Study of a Power Plant Condenser
,”
ASME J. Heat Transfer
,
115
, pp.
435
–
445
.
7.
Zhang
,
C.
,
1994
, “
Numerical Modeling Using a Quasi-Three-Dimensional Procedure for Large Power Plant Condensers
,”
ASME J. Heat Transfer
,
116
, pp.
180
–
188
.
8.
Roache, P. J., 1972, Computational Fluid Dynamics, Hermosa Publishers, Albuquerque, NM.
9.
Ratisher, M., 1998, “Development of a Computational Model for Prediction of Power Plant Steam Condenser Performance,” M.S. thesis, Arizona State University, Tempe, AZ.
10.
Fujii, T., 1981, “Vapor Shear and Condensate Inundation: An Overview,” Power Condenser Heat Transfer Technology, eds., P. J. Marto and R. H. Nunn, Hemisphere, pp. 193–223.
11.
Butterworth, D., 1981, “Inundation without Vapor Shear,” Power Condenser Heat Transfer Technology, eds., P. J. Marto and R. H. Nunn, Hemisphere, New York, NY, pp. 271–277.
12.
White, F. M., 1986, Fluid Mechanics, Second Ed., McGraw-Hill, New York, NY.
13.
Rao
,
S. P. R.
, and
Singh
,
R. P.
,
1988
, “
Performance Characteristics of Single-Stage Steam Jet Ejectors Using Two Simple Models
,”
Chem. Eng. Commun.
,
66
, pp.
207
–
219
.
14.
Patankar, S. V., 1980, Numerical Heat Transfer and Fluid Flow, Hemisphere, New York, NY.
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 by ASME
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