翅片管换热器快速计算仿真模型开发与验证  

Development and Verification of Simulation Model for Fast Calculation of Finned Tube Heat Exchanger

作　　者：李孟山 雷睿 周永戬 胡海涛[1] 孙浩然 张克鹏 LI Mengshan;LEI Rui;ZHOU Yongjian;HU Haitao;SUN Haoran;ZHANG Kepeng(School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Aircraft Design and Research Institute,Shanghai 201210,China;College of Energy Engineering,Zhejiang University,Hangzhou 310027,Zhejiang,China)

机构地区：[1]上海交通大学机械与动力工程学院,上海200240 [2]上海飞机设计研究院中国商用飞机有限责任公司,上海201210 [3]浙江大学能源工程学院,浙江杭州310027

出　　处：《制冷技术》2024年第4期1-6,15,共7页Chinese Journal of Refrigeration Technology

基　　金：国家自然科学基金(No.52476013);上海市科委科技创新行动计划(No.19142203000);压缩机技术国家重点实验室(压缩机技术安徽省实验室)开放基金(No.SKL-YSJ201904);上海市启明星项目扬帆专项(No.22YF1459700)。

摘　　要：针对从成千上万的结构产品中优化设计出满足要求的翅片管换热器的问题,需要快速精确的换热器仿真模型。本文开发了一种简化的三维分布参数模型,基于每排回路的控制单元划分方法,提出了基于回路比例和每排管长合并的简化描述方法,提出了未知流量下的换热-压降交替迭代的快速求解算法;建立了仿真选型设计平台。通过实验数据对模型验证表明:对于2~12排不同翅片结构换热器的换热与压降误差均在10%以内,单次仿真计算耗时小于0.05 s,多自由度选型耗时小于5 s,提高了计算和选型速度。Finned tube heat exchangers have the characteristics of large heat transfer surface area and high efficiency.Optimizing the design of a finned tube heat exchanger from thousands of structural products to meet requirements requires a fast and accurate heat exchanger simulation model.A simplified three-dimensional distribution parameter model is developed,based on the control unit division method of each row of loops,a simplified description method based on the combination of loop proportion and tube length of each row is proposed,and a rapid solution algorithm for alternate iterations of heat transfer-pressure drop under unknown flow rate is proposed.A simulation selection and design platform are established.The validation of the model by experimental data shows the errors of heat transfer and pressure drop for 2-12 rows of heat exchangers with different fin structures are all within 10%,and the single simulation calculation time is less than 0.05 s,and the multi-degree of freedom selection time is less than 5 s,which improves the calculation and selection speed.

关 键 词：翅片管换热器 模拟 快速仿真算法 实验验证 仿真平台 

分 类 号：TQ051.5[化学工程] TP391.9[自动化与计算机技术—计算机应用技术]