摘要
针对传统重力式热管管外对流换热效果较差、携带极限制约传热性能的提高等问题,运用场协同理论,提出一种新式重力式热管的设计方法,以解决传统重力式热管冷凝段与外部流体场协同程度不均匀的问题。依据声速极限确定蒸汽腔的横截面积,依据蒸发段吸热与冷凝段放热基本平衡确定新结构蒸发段的最大长度,并给出重力式热管的最小壁厚和最小端盖厚度,该新式重力式热管具有能改善冷凝段场协同均匀程度的可供冷流体通过的内部流道。本文给出的错流式热管设计参数对于生产实际应用具有指导意义。
Aiming at poor outer convective heat transfer effect for traditional two-phase closed thermo-syphons, and heat transfer performance＇s improvement for entrainment limit constraints and other issues, by using the field synergy theory, the authors design a new type of two-phase closed thermo-syphon to solve the traditional two-phase closed thermo-syphons condenser section and inhomogeneous external fluid field synergy degree. Cross-sectional area of the steam chamber is determined by sound velocity limit, and according to the evaporator and the condenser section endothermic exothermic basic balance the maximum length of the evaporator section of the new structure is determined. This paper gives the minimum wall thickness for two-phase closed thermo-syphons and minimum cover thickness , the new two-phase closed thermo-syphons has an internal flow channel condenser available for cold fluid passing through to improve section field synergy＇s uniformity. Cross-flow two-phase closed thermo-syphons design parameters given in this paper is important for practical production significance.
出处
《西华大学学报（自然科学版）》
CAS
2014年第6期97-100,共4页
Journal of Xihua University:Natural Science Edition
基金
四川省教育厅重大培育项目(14cz0013)
西华大学研究生创新基金项目(YCJJ2014072)
关键词
热管
结构
重力式
错流式
heat pipe
structure
two-phase closed thermo-syphons
cross-flow
作者简介
通信作者：宋文武（1965-），男，教授，硕士，主要研究方向为流体机械流动理论及新产品开发。E-mail：wenwus@163．com．
