考虑制造约束的印刷电路板式换热器优化设计

Optimal design of printed circuit heat exchanger considering manufacturing constraints

针对印刷电路板式换热器(PCHE)的微流道结构参数设计制造一体化问题,开展了考虑制造约束条件的换热器性能优化的研究。通过流体仿真分析了流道宽度、深度和深宽比对温度分布、压力损失和换热系数的影响。使用多目标遗传算法(MOGA)建立了换热性能的多参数多目标性能优化仿真模型,根据性能优化获得的设计参数建立微流道结构辊压成形工艺仿真模型,得到制造约束条件,将制造约束反馈到性能优化仿真模型中,得到宽为0.29 mm、深为0.39 mm的矩形微流道优化设计参数,且通过辊对辊(R2R)的辊压工艺实验验证了该优化方法的可行性。考虑制造约束的换热器优化设计方法在性能优化设计阶段引入工艺限制条件,是实现换热器一体化设计制造的有效手段。

Aiming at the integrated design and manufacturing of micro-channel structure parameters for printed circuit heat exchanger(PCHE),the performance optimization research of heat exchangers considering manufacturing constraints is carried out.Through fluid simulation,the influence of flow channel width,depth,and aspect ratio on temperature distribution,pressure loss,and heat transfer coefficient is analyzed.A multi-objective genetic algorithm(MOGA)is used to establish a multi-variable and multi-objective optimization simulation model for heat transfer performance.The results of the performance simulation are used to establish the microchannel structure rolling forming process,and the manufacturing constraints are obtained.The manu-facturing constraints are fed back to the performance optimization simulation model.Consequently,the micro-channel design parameters with a width of 0.29 mm and a depth of 0.39 mm are obtained,and the feasibility of the optimization method was verified by the roll-to-roll(R2R)process test.The designed method of heat-exchanger optimization considering manufacturing constraints introduce process constraints in the stage of per-formance optimization design,and is proved an effective measure to achieve the integrated design and manu-facture of heat exchangers.