CAJ | 학술논문

单排管是直接空冷凝汽器的一种基本换热元件,单排管外空气侧的流动和传热性能研究,对于直接空冷凝汽器的优化设计具有重要的意义.利用计算传热学软件FLUENT,对不同翅片间距下单排管空气侧进行三维数值模拟,并对速度场、温度场进行分析和研究.可为直接空冷系统的优化设计提供参考.
단배관시직접공냉응기기적일충기본환열원건,단배관외공기측적류동화전열성능연구,대우직접공냉응기기적우화설계구유중요적의의.이용계산전열학연건FLUENT,대불동시편간거하단배관공기측진행삼유수치모의,병대속도장、온도장진행분석화연구.가위직접공랭계통적우화설계제공삼고.
Single row tube is one kind of basic heat exchange element for direct air cooled condensers (ACC). The research on the flow and heat transfer performance in air side of the single row tube is of great importance for the optimal design of air cooled condensers. By using the FLUENT numerical heat transfer sofiware, the three dimensional numerical simulation for air side of single row tube under the conditions of different fin spacing was accomplished, and its flow field and temperature field were analyzed and studied. The result can be used as reference for optimal design of direct ACC system.