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<p>Crosswinds can significantly disrupt the flow and velocity fields around indirect dry cooling tower (IDCT), leading to reduced heat transfer efficiency. This study develops a three-dimensional numerical model of a 350-MW IDCT employing a hybrid ventilation strategy. By integrating crosswalls and axial fans, the system establishes an effective mixed ventilation mechanism within the tower. Compared to conventional ventilation approaches, this configuration improves overall heat dissipation efficiency by 9.4% to 20.13% under various operating conditions and reduces the unit’s power generation standard coal consumption by an average of 2.33 g/kWh. The results offer theoretical support and technical validation for the practical application of hybrid ventilation in IDCT.</p>

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Comparative Study of Ventilation Strategies for Full-Load Thermal Performance Optimization in 350-MW Indirect Dry Cooling Tower

  • 期刊论文

  • 发表日期：

    2026年7月25日

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  • Minghui Zheng,
  • Chen Yao,
  • Guochao Lin,
  • Jiping Liu,
  • Junjie Yan

摘要

Crosswinds can significantly disrupt the flow and velocity fields around indirect dry cooling tower (IDCT), leading to reduced heat transfer efficiency. This study develops a three-dimensional numerical model of a 350-MW IDCT employing a hybrid ventilation strategy. By integrating crosswalls and axial fans, the system establishes an effective mixed ventilation mechanism within the tower. Compared to conventional ventilation approaches, this configuration improves overall heat dissipation efficiency by 9.4% to 20.13% under various operating conditions and reduces the unit’s power generation standard coal consumption by an average of 2.33 g/kWh. The results offer theoretical support and technical validation for the practical application of hybrid ventilation in IDCT.