| 板式换热器性能的数值模拟 |
| |
| 引用本文： | 徐志明,王月明,张仲彬.板式换热器性能的数值模拟[J].动力工程,2011,31(3). |
| |
| 作者姓名： | 徐志明 王月明 张仲彬 |
| |
| 作者单位： | 东北电力大学能源与动力工程学院,吉林,132012 |
| |
| 基金项目： | 国家重点研究发展计划(973)资助项目(2007CB206904); 国家自然科学基金资助项目(50576009,51076025) |
| |
| 摘 要： | 建立了人字形板式换热器冷热双流道的流体流动与传热计算模型,利用计算流体力学软件对5组不同速度工况下换热器内流体的流动和传热进行了数值模拟,分析了换热器流道内的速度场、温度场和压力场.结果表明:数值模拟得到的板式换热器进、出口温差和压降与试验测量值的误差均小于6%;换热器内流体的流动和传热存在明显的不均匀性,导致其进、出口的另一侧出现明显的传热"死区";换热器的总传热系数和流道阻力均随着流体流速的增大而增大.
|
| 关 键 词： | 板式换热器 流动 传热 等流速法 数值模拟 |
Numerical Simulation on Performance of Plate Heat Exchangers |
| |
| XU Zhi-ming
,
WANG Yue-ming
,
ZHANG Zhong-bin.Numerical Simulation on Performance of Plate Heat Exchangers[J].Power Engineering,2011,31(3). |
| |
| Authors: | XU Zhi-ming WANG Yue-ming ZHANG Zhong-bin |
| |
| Affiliation: | XU Zhi-ming,WANG Yue-ming,ZHANG Zhong-bin(School of Energy and Power Engineering,Northeast Dianli University,Jilin 132012,China) |
| |
| Abstract: | A calculation model was built up for fluid flow and heat transfer in cold and hot flow channels of a chevron-type plate heat exchanger.Using CFD software,numerical simulations were carried out for fluid flow and heat transfer inside the heat exchanger under conditions of five different velocities,while the velocity field,temperature field and pressure field in the channels analyzed.Results show that the error of both temperature difference and pressure drop are all less than 6% between simulated and test re... |
| |
| Keywords: | plate heat exchanger flow heat transfer equal velocity method numerical simulation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
