Noise Performance Investigation of Heat Exchanger of Air Condition

Abstract

Abstract:

Abstract： The behaviors of noise through the heat exchanger of indoor unit at a low-speed free stream were studied by aeroacoustic performance measurements in a semi-anechoic chamber with different velocities and angles. The experimental results indicate that the noise can be generated at particular velocity and angles which are considered as the most important factor that influences the aerodynamic performance of the heat exchanger. With the increasing in the flow velocity, the frequency of noise increases linearly, and there exists a fixed Strouhal number for the given heat exchanger.

Key words: heat exchanger, aeroacoustic performance, cavity, noise

CLC Number:

TK 17
TB 52

SUN Kangjie,OUYANG Hua,TIAN Jie,WU Yadong,DU Zhaohui. Noise Performance Investigation of Heat Exchanger of Air Condition[J]. Journal of Shanghai Jiaotong University, 2015, 49(05): 633-636.

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