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Design of steady state detector for fault detection and diagnosis of CO2 heat pump water heater with decomposition analysis technique.

Number: pap. C8-034

Author(s) : ROH C. W., LEE J. S., KIM M., et al.

Summary

There is an increasing effort on energy savings and emission reducing of global warming gases in production and maintenance of heat pump systems. Especially, to sustain heat pump’s efficiency during its entire life span, the proper installation of heat pump and maintenance activity of manufacturers has been emphasized. The fault detection and diagnosis (FDD) technology is an automatic system to detect the fault in a system. The FDD logic needs the credible performance data from the steady-state system; hence, an accurate and sensitive steady-state detector (SSD) is the core logic for developing FDD modules. This paper presents a general methodology for designing the SSD logic for CO2 heat pump water heater system. The SSD logic is based on moving window and decomposition analysis technique using four fundamental measurements. To verify the developed SSD, the experiments were carried out varying with quantity of CO2 charged.

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Pages: 4 p.

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Details

  • Original title: Design of steady state detector for fault detection and diagnosis of CO2 heat pump water heater with decomposition analysis technique.
  • Record ID : 30005387
  • Languages: English
  • Source: ACRA2010. Asian conference on refrigeration and air conditioning: Tokyo, Japan, June 7-9, 2010.
  • Publication date: 2010/06/07

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