发电机组温度场数值模拟及分析  

Numerical Simulation on Temperature Field of Generator Unit

作　　者：谭礼斌 袁越锦[1] TAN Libin;YUAN Yuejin(School of Mechanical and Electrical Engineering,ShaanXi University of Science&Technology,Xi'an 710021 China)

机构地区：[1]陕西科技大学机电工程学院,陕西西安710021

出　　处：《西华大学学报（自然科学版）》2023年第4期49-57,共9页Journal of Xihua University:Natural Science Edition

基　　金：国家自然科学基金项目(51876109);陕西省国际科技合作计划重点项目(2020KWZ-015);陕西省教育厅青年创新团队科研计划项目(22JP012)。

摘　　要：为研究发电机组温度场分布特性,基于CFD方法建立了发电机组温度场分析模型,利用耦合分析(Co-simulation)方法进行温度场模型的数值求解。结果表明:消声器前护罩温度仿真值与实验测试值的误差约4.9%,从而验证了分析模型是有效的;发动机缸头及箱体表面速度分布均匀,不存在速度死区;发动机最高温度约为200℃;定子及其绕组线圈最大温度约为120℃,未超过线圈最高温度不得超过150℃的承受范围;变频器系统的最大温度是91.66℃。温度场分析结果可为发电机组散热的评估提供量化数据参考。In order to evaluate the temperature distribution characteristics of an generator unit,the temperature analysis model of an generator unit was built based on CFD method and it was numerically solved by co-simulation method.Results show that the error between the simulated values and experimental values of muffler front cover temperature is 4.9%.This indicates that the model built in this work is effective.Cell surface velocity distribution of engine cylinder head and crankcase is uniform and there is no zero-velocity zone.The maximum temperature of the engine body is about 200℃,and the maximum temperature of the stator and its winding coil is about 120℃,which not exceed that maximum temperature bearing value of 150℃.The maximum temperature of inverter system is 91.66℃.Temperature analysis results can provide quantitative data support for the evaluation of generator unit cooling performance.

关 键 词：发电机组 温度场 计算流体力学 散热性能 量化数据 

分 类 号：TQ052.72[化学工程]