中国电机工程学报Issue(20)：96-103,8.
填料非均匀布置对大型冷却塔冷却性能的影响
Impact of Fill Non-uniform Layout on Cooling Performance of Large-scale Cooling Towers
摘要
Abstract
To analyze the impact of fill non-uniform layout on the cooling performance of natural draft counter-flow wet cooling tower, the three-dimensional numerical computation model was established for a large-scale cooling tower and validated through its actual measured conditions. Considering the impact of fill non-uniform layout under different natural crosswind conditions, relevant parameters such as air up-flow velocity, air density and water temperature were computed and analyzed. The results show that the improvement of tower cooling performance is mainly caused by the height increase of external fill. Height increase of external fill enhances the cooling performance of this zone, decreases the air up-flow velocity through the zone and the air density upon the zone, which causes great driving power for inflow air and increases the air up-flow velocity in fill middle zone and internal zone, so as to improve the cooling performance of middle zone, internal zone of tower and its overall cooling performance. Under high speed natural crosswind, since the non-uniform fill layout decreases the air up-flow velocity in tower greatly, its improvement on tower overall cooling performance decreases correspondingly.关键词
冷却塔/填料/非均匀布置/冷却性能/侧风/数值模拟Key words
cooling tower/fill/non-uniform layout/cooling performance/crosswind/numerical simulation分类
能源科技引用本文复制引用
..填料非均匀布置对大型冷却塔冷却性能的影响[J].中国电机工程学报,2013,(20):96-103,8.基金项目
国家自然科学基金项目(51106092)。 （51106092）
