The refrigerant transition from HFC-134a to HFO-1234yf has proven to be more challenging on controlling refrigerant flow-induced noises generated from automotive air-conditioning (A/C) systems than originally anticipated. The objectives of this paper are to describe the noise issues with HFO-1234yf, understand the mechanisms and key factors affecting HFO-1234yf refrigerant flow-induced noise. Finally, the countermeasures and guidelines for attenuating and suppressing the noise are presented.
NVH Challenges with Introduction of New Refrigerant HFO-1234yf
Sae Technical Papers
WCX™ 17: SAE World Congress Experience ; 2017
2017-03-28
Conference paper
English
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