【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。更多还原

【Abstract】 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.更多还原