System simulation and computational fluid dynamics based refrigerant circuitry optimization of a condenser

被引：0

作者：

Sun, Lei ^{[1
]}

Zhang, Chunlu ^{[1
]}

机构：

[1] School of Mechanical Engineering, Tongji University, Shanghai

来源：

Tongji Daxue Xuebao/Journal of Tongji University | 2015年 / 43卷 / 09期

关键词：

Circuitry design; Computational fluid dynamics (CFD); Condenser; Dual-system;

D O I：

10.11908/j.issn.0253-374x.2015.09.16

中图分类号：

学科分类号：

摘要：

Refrigerant circuitry of the dual-system condenser in a roof-top air-conditioning unit was optimized using refrigeration system simulation and Computational Fluid Dynamics (CFD). CFD simulation of airflow was carried out to obtain the frontal velocity distribution of the condenser. Refrigeration system simulation was used to design refrigerant circuitry of the condenser and predict the system performance. The proposed circuitry design was evaluated at both component and system levels. At the component level, results indicated a 24.1% increase on the heat transfer rate of new condenser in comparison with the original design. At the system level, the cooling capacity and the system performance coefficient (COP) were improved by 3.6% and 8.1%, respectively, when only one system was running. The proposed method can be widely applied to this type of air-cooled products. ©, 2015, Tongji Daxue Xuebao/Journal of Tongji University. All right reserved.

引用

页码：1390 / 1394

页数：4

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