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가속수명시험을 이용한 브레이징 판형 열교환기의 수명 예측
박태국(Tae-Kook Park),성백주(Baek-Ju Sung),최병오(Byung-Oh Choi),장무성(Mu-seong Chang),장영규(Young-Gyu Jang),박형준(Hyung-Jun Park) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
The brazed plate heat exchanger is lightweight but has excellent heat transfer performance. So, it has been used in various industries as well as refrigeration and air conditioning. Its failure effects on performance and life of the overall system which it is used. Especially, the life is very important because it is directly related to the economical problem of companies. In normal condition, the life test time is generally so long. This paper presents the accelerated stress factors needed for performance of acceleration life test, which are confirmed through failure mode analysis of brazed plate heat exchanger, and introduces the optimal acceleration model. And, the accelerated life test is performed in accordance with the proper test plan using the stress factors such as pressure and temperature. Reliability measures such as MTTF and B10 life for the brazed plate heat exchanger is estimated by statistical analysis of the test data.