Numerical Analysis of Indoor Unit Air Flow Non-Uniformity Owing to Suction Air Distribution

被引：0

作者：

Kwon J.W. ^{[1
]}

Ahn J. ^{[1
]}

机构：

[1] School of Mechanical Engineering, Kookmin Univ

来源：

Transactions of the Korean Society of Mechanical Engineers, B | 2024年 / 48卷 / 04期

关键词：

Air Conditioner; CF; Non-Uniformity;

D O I：

10.3795/KSME-B.2024.48.4.225

中图分类号：

学科分类号：

摘要：

The air conditioner indoor unit comprises a fin-tube heat exchanger, and the non-uniformity of the air flow in the tube bank significantly affects the cooling performance. This problem can be solved by effectively configuring a refrigerant supply circuit; however, this requires information on the air flow distribution for each pipe. In this study, 3D computational fluid dynamics (CFD) simulation was performed by reflecting the internal structure of the indoor unit to predict flow non-uniformity occurring in each tube of the indoor unit. The complex fin structure was approximated as a porous medium, and the influence of the inlet flow was identified by imposing experimentally measured data as boundary conditions. The air flow is generated by an intake fan, and this was implemented as a pressure boundary condition and an outlet condition to determine the effect of the boundary conditions. The study confirmed that the inlet flow distribution significantly affected the flow non-uniformity occurring in the indoor unit tube, and the influence of the outlet boundary condition was observed to be relatively small. © 2024 The Korean Society of Mechanical Engineers.

引用

页码：225 / 232

页数：7

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