| CMR平板预热器热工性能的数值模拟 |
| |
| 引用本文： | 薛福华,刘永启.CMR平板预热器热工性能的数值模拟[J].农业装备与车辆工程,2012,50(7):1-4,8. |
| |
| 作者姓名： | 薛福华 刘永启 |
| |
| 作者单位： | 255091,山东省 淄博市 山东理工大学 交通与车辆工程学院 |
| |
| 基金项目： | 国家高技术研究发展计划(863)资助项目，山东省自然科学基金资助项目 |
| |
| 摘 要： | 板式预热器是一种高效紧凑的换热器,由于其传热系数大,传热阻力小等特点被广泛地应用于各种领域,长期以来,对其研究只停留在实验和经验的基础上,缺乏预见性.对平板预热器的物理模型进行了合理简化,利用数值计算软件,采用SIMPLEC算法和标准湍流模型,通过求解三维方程和能量方程对CMR预热器内板片间的流场进行了数值模拟.结果表明:导气墙越长,换热效率越大,阻力损失也会越大；增加流速,热效率降低,阻力损失增加；板间距离减小,换热效率增大,阻力损失也会增大.
|
| 关 键 词： | 阻力特性 流动特性 换热效率 板式预热器 CMR |
Numerical Simulation of the Plate-type CMR Pre-heater Thermotechnicai Properties |
| |
| XUE Fu-hua
,
LIU Yong-qi.Numerical Simulation of the Plate-type CMR Pre-heater Thermotechnicai Properties[J].Agricultural Equipment & Vehicle Engineering,2012,50(7):1-4,8. |
| |
| Authors: | XUE Fu-hua LIU Yong-qi |
| |
| Institution: | (School of Traffic and Vehicle Engineering, Shandong University of Technology, Zibo City, Shandong Province 255091, China) |
| |
| Abstract: | Plate pre-heater has been widely used in different industrial applications for nearly a century, however, the investigation to the plate pre-heater has little improvement. The plate-type CMR pre-heater physical model is simplifying rationally. Flow field between two corrugated plate in CMR pre-heater was simulated by using the Fluent software.During the process of simulation,the SIMPLEC arithmetic and turbulent model were adopted,and then the equation and energy equation were solved. The result shows that: the longer the air guide wall, the higher the heat transfer efficiency and the greater the resistance loss; heat transfer efficiency becomes lower and resistance loss becomes greater with the increasing of velocity; the smaller the distance between the plates, the higher the heat transfer efficiency, the greater the resistance loss. |
| |
| Keywords: | resistance characteristics flow characteristics heat transfer efficiency plate pre-heater CMR |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
