NVH Challenges with Introduction of New Refrigerant HFO-1234yf

Paper #:
  • 2017-01-0172

Published:
  • 2017-03-28
Citation:
Venkatappa, S., Koberstein, M., and Liu, Z., "NVH Challenges with Introduction of New Refrigerant HFO-1234yf," SAE Technical Paper 2017-01-0172, 2017, https://doi.org/10.4271/2017-01-0172.
Pages:
5
Abstract:
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.
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