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하이브리드 열펌프 열교환기 오염 진단 연구

A Study on Diagnosing Fouling of Heat Exchangers of a Hybrid Heat Pump

  • Shin, Younggy (Department of Mechanical Engineering, Sejong University)
  • 투고 : 2014.01.20
  • 심사 : 2014.04.09
  • 발행 : 2014.05.10

초록

A fault detector was developed for heat exchangers of a hybrid heat pump (HP) for household. The proposed detector can be applied directly to raw operating data. It is to monitor a tracking error between a measured saturation temperature and its state observer. The observer was estimated from a state-space model simulating dynamics of a heat exchanger. The real hybrid HP was substituted with a dynamic simulator that implemented two-phased heat transfer and was validated by experimental data. And artificial fault data were generated using the simulator. Diagnosing the data showed the following. The residual calculated from the state observer error shows a relatively robust consistency with respect fouling level. The fault detector is practically useful because it detects a threshold fouling beyond which the performance starts to deteriorate significantly.

키워드

참고문헌

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피인용 문헌

  1. Recent Progress in Air-Conditioning and Refrigeration Research: A Review of Papers Published in the Korean Journal of Air-Conditioning and Refrigeration Engineering in 2014 vol.27, pp.7, 2015, https://doi.org/10.6110/KJACR.2015.27.7.380