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多股流板翅式换热器温度交叉的数值分析 被引量:5

Numerical Analysis of the Temperature Crossover of a Multi stream Plate fin Heat Exchanger
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摘要 以平行多股流板翅式换热器为研究对象,给出了考虑翅片旁通作用的多股流板翅式换热器流体和翅片的能量方程。在改变多股流板翅式换热器各通道的流体参数、流动方式及换热器的结构参数等情况下,对能量方程进行数值求解,获得了各通道的流体温度分布情况及相邻通道的流体温度差,并分析了流体参数、流动方式和结构参数的变化对相邻通道流体温度交叉的影响。 With a parallel multi-stream plate-fin heat exchanger serving as a target of study the authors have presented an energy equation for both the fluid and fins of the said heat exchanger, taking into account the bypass effect of the fins. A numerical solution is conducted of the energy equation under the conditions of changing the fluid parameters and flow modes of various channels as well as the structural parameters of the heat exchanger. As a result, obtained were the fluid temperature distribution of various channels and the fluid temperature difference of neighboring channels. Furthermore, analyzed was the effect of the variation of fluid parameters, flow modes and structural parameters on the fluid temperature crossover of the neighboring channels.
出处 《热能动力工程》 EI CAS CSCD 北大核心 2002年第6期611-613,共3页 Journal of Engineering for Thermal Energy and Power
基金 国家重点基础研究发展规划基金资助项目(G2000026301) 上海市教委青年基金资助项目(01QN36)
关键词 多股流板翅式 换热器 温度交叉 数值分析 翅片旁通 流动方式 Flow of fluids Numerical analysis Parameter estimation
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