空调箱表冷器性能仿真模型研究Research Three Simulation Models for Fin and Tube Exchanger Used by Air Handle Unit
邱峰,谷波,白伟
QIU Feng,GU Bo,BAI Wei(Shanghai Jiaotong University
摘要(Abstract):
建立集中参数模型、分布参数模型、分排参数模型模拟翅片管换热器实际换热性能。设计合理的算法完成模型分析及仿真计算。通过试验数据比对,集中参数模型与分布参数模型误差略大,平均误差为19%和12%;分排参数模型更贴切实际物理模型,考虑各排对换热的影响,模型建立更合理,误差为4.6%。最后,分析了集中参数模型在使用仿真计算过程中,换热量偏大的原因,并给出了模型使用建议。
Iumped parameter model,distributed parameter model and sub-row-parameter model for fin and tube exchanger were designed,which simulate the heat transfer performance.Develop the reasonable iterative algorithm for three models above to calculate quickly and stable in the system.Compared with experiment data,the errors of lumped parameter and distributed parameter are more than sub-row-parameter,with 19%,12%,4.6%.Because sub-row-parameter considers the influence of rows,which matches the actual physical model.Meanwhile,for the lumped parameter model,analyze why the heat transfer quality is always more than the experiment,and give advice to the user.
关键词(KeyWords):
空调箱;仿真;模型
air handle unit,simulation,models
基金项目(Foundation):
作者(Author):
邱峰,谷波,白伟
QIU Feng,GU Bo,BAI Wei(Shanghai Jiaotong University
参考文献(References):
- [1]谷波,卞荷洁,黎远光.风机盘管变结构性能的模型分析[J].机械工程学报,2004,(10):109-114.
- [2]VARDHAN A,DHAR P L.A new procedure for per-formance prediction of air conditioning coils[J].Inter-national Journal Refrigeration,1998,21(1):77-83.
- [3]Wang Chi-Chuan,Chi Kuan-Yu,Chang Chun-Jing.Heat transfer and friction characteristics of plainfin-and-tube heat exchangers,partⅡ:Correlation[J].Int J Heat Mass Transfer,2000,43(15):2693-2700.
- [4]甄伟,谷波.外界扰动下的风机盘管动态响应[J].哈尔滨工业大学学报,2007,(1):163-156.
- [5]张恩泽,池映天.表冷器热工性能数值模拟的探讨[J].能源研究与信息,2001,4:232-238.
- [6]张恩泽,唐志国.肋片间距对表冷器性能影响的实验研究[J].能源研究与信息,2002,3:162-168.
- [7]杨世铭,陶文铨.传热学[M].北京:高等教育出版社,1998.