多元平行流冷凝器数值模拟  

Numerical Simulation of Multiple Parallel Flow Condensers

作　　者：闫自成[1] 胡益雄[1] 苏晶[1] 

机构地区：[1]中南大学能源科学与工程学院,长沙410083

出　　处：《制冷与空调（四川）》2012年第3期290-294,299,共6页Refrigeration and Air Conditioning

摘　　要：介绍了多元平行流冷凝器的结构特点和前人的研究成果,对平行流冷凝器的流动和传热特点进行了深入分析,在此基础上运用分布参数法建立了稳态数学模型,对某种规格的平行流冷凝器在一定工况下数值模拟,计算得到不同迎面风速下平行流冷凝器流动换热情况。结果表明,多元平行流冷凝器在冷凝换热时较常规换热器具有显著优越性,迎面风速对冷凝换热的影响存在一个临界范围。This paper describes the structural characteristics of multiple Parallel Flow condensers and predecessors research results, and gives an in-depth analysis on flow and heat transfer characteristics of a Parallel Flow condenser. On this basis, distributed parameter method is applied to establish a steady-state mathematical model, and for a certain specification and condition, parallel flow condenser flow and heat transfer conditions under different cooling wind speed are calculated. Results show that multiple Parallel Flow condensers have significant advantages in condensation heat transfer, and the effect of face wind speed has a critical range.

关 键 词：平行流 稳态模型 冷凝风速 数值模拟 临界范围 

分 类 号：TB61[一般工业技术—制冷工程]