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The natural draft tower of air cooled condenser system require neither mechanical ventilation fan, nor circulating water pump of the indirect dry cooling system, which significantly reduces the noise, house service consumption and net coal consumption of power plant, according with the requirements of the "low-carbon" development era. However, this system has never been applied to large-fossil fired power units, it is necessary to understand the influence of environmental wind direction on heat dissipation of the natural draft tower of air cooled condenser. Using the FLUENT software, numerical simulations of the natural draft tower of air cooled condenser under different wind directions for 2×660 MW unit were conducted to obtain the distribution characteristics of ventilation and heat dissipation of each cooling triangle under different wind directions, the overall heat dissipation performance of the cooling tower and the impact of environmental wind direction on the general layout of the cooling tower and main plant. The results indicate that the central line of the natural draft tower of air cooled condenser of the 2 units should be parallel to the dominant wind direction preferentially.

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自然通风直接空冷系统既不需要机械通风风机,也不需要间接空冷系统的循环水泵,大幅度降低了噪声、厂用电率和供电煤耗,符合“低碳”时代发展要求。自然通风直接空冷系统在大容量机组尚未应用,需掌握环境风向对自然通风直接空冷塔散热的影响规律。利用流体力学模型仿真FLUENT软件,对2×660 MW机组的直接空冷塔不同风向进行数值模拟,得到不同风向下各散热三角的通风量和散热量分布特点、直接空冷塔总体散热性能以及风向对直接空冷塔和主厂房总体布置的影响。结果表明,2台机组的自然通风直接空冷塔的中心连线优先与主导风向平行。

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杨迎哲(1972),女,正高级工程师,主要研究方向为电厂湿冷和空冷系统及其冷却设施优化设计和运行等,

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杨迎哲(1972),女,正高级工程师,主要研究方向为电厂湿冷和空冷系统及其冷却设施优化设计和运行等,

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杨迎哲(1972),女,正高级工程师,主要研究方向为电厂湿冷和空冷系统及其冷却设施优化设计和运行等,

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环境风向对自然通风直接空冷塔散热影响
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杨迎哲 , 王蓓 , 吕兰
热力发电 | 清洁高效灵活煤电技术专题 2023,52(9): 121-128
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热力发电 | 清洁高效灵活煤电技术专题 2023, 52(9): 121-128
环境风向对自然通风直接空冷塔散热影响
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杨迎哲 , 王蓓, 吕兰
作者信息
  • 中国电力工程顾问集团西北电力设计院有限公司,陕西 西安 710075
  • 杨迎哲(1972),女,正高级工程师,主要研究方向为电厂湿冷和空冷系统及其冷却设施优化设计和运行等,

Influence of the environmental wind direction on heat dissipation of natural draft tower of air cooled condenser
Yingzhe YANG , Bei WANG, Lan LYU
Affiliations
  • Northwest Electric Power Design Institute Co, Ltd, China Power Engineering Consulting Group, Xi'an 710075, China
出版时间: 2023-09-25 doi: 10.19666/j.rlfd.202303024
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自然通风直接空冷系统既不需要机械通风风机,也不需要间接空冷系统的循环水泵,大幅度降低了噪声、厂用电率和供电煤耗,符合“低碳”时代发展要求。自然通风直接空冷系统在大容量机组尚未应用,需掌握环境风向对自然通风直接空冷塔散热的影响规律。利用流体力学模型仿真FLUENT软件,对2×660 MW机组的直接空冷塔不同风向进行数值模拟,得到不同风向下各散热三角的通风量和散热量分布特点、直接空冷塔总体散热性能以及风向对直接空冷塔和主厂房总体布置的影响。结果表明,2台机组的自然通风直接空冷塔的中心连线优先与主导风向平行。

环境风向  /  自然通风直接空冷塔  /  散热三角  /  通风量  /  散热量

The natural draft tower of air cooled condenser system require neither mechanical ventilation fan, nor circulating water pump of the indirect dry cooling system, which significantly reduces the noise, house service consumption and net coal consumption of power plant, according with the requirements of the "low-carbon" development era. However, this system has never been applied to large-fossil fired power units, it is necessary to understand the influence of environmental wind direction on heat dissipation of the natural draft tower of air cooled condenser. Using the FLUENT software, numerical simulations of the natural draft tower of air cooled condenser under different wind directions for 2×660 MW unit were conducted to obtain the distribution characteristics of ventilation and heat dissipation of each cooling triangle under different wind directions, the overall heat dissipation performance of the cooling tower and the impact of environmental wind direction on the general layout of the cooling tower and main plant. The results indicate that the central line of the natural draft tower of air cooled condenser of the 2 units should be parallel to the dominant wind direction preferentially.

environmental wind direction  /  natural draft tower of air cooled condenser  /  cooling triangle  /  ventilation capacity  /  heat dissipation
杨迎哲, 王蓓, 吕兰. 环境风向对自然通风直接空冷塔散热影响. 热力发电, 2023 , 52 (9) : 121 -128 . DOI: 10.19666/j.rlfd.202303024
Yingzhe YANG, Bei WANG, Lan LYU. Influence of the environmental wind direction on heat dissipation of natural draft tower of air cooled condenser[J]. Thermal Power Generation, 2023 , 52 (9) : 121 -128 . DOI: 10.19666/j.rlfd.202303024
2023年第52卷第9期
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doi: 10.19666/j.rlfd.202303024
  • 接收时间:2023-03-07
  • 首发时间:2026-01-26
  • 出版时间:2023-09-25
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  • 收稿日期:2023-03-07
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    中国电力工程顾问集团西北电力设计院有限公司,陕西 西安 710075
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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