Deviation Analysis on Flow and Heat Transfer Model of Large Air-Cooled Steam Condenser Unit

Abstract:

Many power plants adopt air-cooled condensers (ACC) with finned tubes, using ambient air to condense turbine exhaust steam. Each condenser unit is mainly composed of two heat transfer surfaces like A and large diameter axial flow fans driving air. In the study of environmental wind effects, etc, due to the condenser unit size is bigger, it is necessary to simplify the condenser unit internal flow and heat transfer calculation, but the deviations introduced by these simplifies failed to get enough attention. In view of one condenser unit, three kinds of flow and heat tansfer combinated model were respectively investigated. A computational fluid dynamics software (CFD) is used to solve the problem.Research priority is analyzing the deviations of internal flow and heat transfer features in the condenser unit according to the extracted datum. The study gives some useful informatin to the design of a thermal power plant with an ACC system.

• Periodical: Advanced Materials Research (Volumes 860-863)
• Pages: 656-662
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.860-863.656
• Online since: December 2013
• Authors: Yi Lv, Hui Zhang, Yu Jin Yue, Li Jun Yang, Xiao Dong Zhang
• Keywords: Air-Cooled, Condenser Unit, Deviation, Flow, Heat Transfer, Model

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