翅片管束瞬态传热研究

CIESC Journal

翅片管束瞬态传热研究

凌旭,陈听宽,田永生

西安交通大学能源系,西安交通大学能源系,西安交通大学能源系西安710049.航空工业规划设计研究院 ,西安710049 ,西安710049

出版日期:1993-08-25 发布日期:1993-08-25

RESEARCH ON TRANSIENT HEAT TRANSFER TUBE BUNDLES

Ling Xu, Chen Tingkuan and Tian Yongsheng (Department of Energy and Power Engineering , Xian Jiaotong University, Xian 710049)

Online:1993-08-25 Published:1993-08-25

摘要/Abstract

摘要： 利用离散流动的概念和二维非稳态传热的数值计算方法,建立了流体从翅片管束换热器流出时温度变化的计算模型,并设计了配比方法,使离散流动瞬态法有了较大的改善.本文用该方法确定了空气横掠大管径错排翅片管束的换热系数,同时还用恒壁温法对该管束的换热系数进行了试验研究,二者结果符合很好.

Abstract: The concept of separated flow and numerical calculation of two-dimensional unsteady heat transfer were used to develop a model of the temperature change of flue gas flowing out of finned tube bundles. A method for comparison was designed to improve the separated flow model and the transient experiment method. The heat transfer coefficient of air flowing transversly through crossed finned tube bundles was established in this way and experimental study on the coefficient was made with the constant wall temperature method. The result was satisfactory.

凌旭,陈听宽,田永生. 翅片管束瞬态传热研究 [J]. CIESC Journal.

Ling Xu, Chen Tingkuan and Tian Yongsheng (Department of Energy and Power Engineering , Xian Jiaotong University, Xian 710049). RESEARCH ON TRANSIENT HEAT TRANSFER TUBE BUNDLES[J]. .