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ISSN Online: 2377-424X

ISBN Print: 1-56032-797-9

International Heat Transfer Conference 11
August, 23-28, 1998, Kyongju, Korea

SIMULATION OF HEAT EXCHANGE IN LARGE AIR COOLED CONDENSERS

Get access (open in a dialog) DOI: 10.1615/IHTC11.1470
pages 155-160

摘要

Computational Fluid Dynamics (CFD) has in the past decade been established as a powerful tool which can be used for simulation of complex fluid flow and heat transfer systems. This paper presents a numerical model, based on the commercial CFD code STAR CD, which was developed to predict the effects of changing ambient conditions on the rale of heat exchanged by an Air Cooled Condenser (ACC). The model makes use of interactive boundary conditions to communicate the response functions of the turbine generator to the CFD code in order to adjust the turbine load point to a point on the actual turbine operating curve. Factors such as hot air recirculation, fan performance and turbine back pressure are predicted by the model. Results for an actual lest case are presented and compared with actual operating conditions. The effects of wind speed and direction on the rate of heat exchange, are also discussed.