摘要
将数值模拟计算方法和Fluent软件相结合,对夹套式热管进行三维数值模拟,研究了热管热交换器在余热回收系统中的特点和作用。根据夹套式热管热交换器结构特点及传热特征,建立了夹套式热管热交换器流动与传热的三维物理模型,采用非结构化网格划分,选用k-ε湍流模型和耦合传热法,研究了夹套式热管热交换器壳程温度场分布。结果显示,夹套式热管内沿工质流动方向温度层次明显,壳程靠近热管的部位温度梯度大。
The numerical simulation calculation method and Fluent software were unified to do 3-d numerical simulation on heat pipe,recovery of waste heat exchanger characteristics and function in the system were studied.According to the type of heat pipe heat exchanger folder structure characteristics and heat transfer characteristics,the clip type of heat pipe heat exchanger flow and heat transfer of three-dimensional physical model were established,adopting unstructured grids,using k-ε turbulent model and coupled heat transfer method,the clip shell heat pipe heat exchanger type of process temperature field distribution was studied.The results showed that temperature gradient heighten at the flowing direction of working fluid in heat pipe.
出处
《石油化工设备》
CAS
2012年第2期12-14,共3页
Petro-Chemical Equipment
基金
辽宁省自然科学基金(20092182)
关键词
热交换器
热管
夹套式
数值模拟
heat exchanger
heat pipe
clip set of type
numerical simulation
