文档介绍
| Based on
the heat and mass transfer theory and the characteristics of general-purpose
software FLUENT, a three-dimensional numerical simulation platform, composed
of lots of user defined functions(UDF), has been developed to simulate the
thermal performance of natural draft wet cooling towers(NDWCTs). After
validation, this platform is used to analyse thermal performances of a 220m
high super large cooling tower designed for inland nuclear plant under
different operational conditions. Variations of outlet temperature of the
cooling tower caused by changes of water flow rates, inlet water temperatures
are investigated. Effects of optimization through non-uniform water
distributions on outlet water temperature are discussed, and the influences
on the flow field inside the cooling tower are analyzed in detail. It is
found that the outlet water temperature will increase as the water flow rate
increases, but the air flow rate will decrease. The outlet water temperature
will decrease 0.095K and 0.205K, respectively, if two non-uniform water
distribution approaches are applied. 三维数值模拟研究超大型自然通风220m高冷却塔的热性能 |
文档标签:
流体力学
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