Detecting Fan Faults in refrigerated Cabinets

C. Thybo, B.D. Rasmussen, Roozbeh Izadi-Zamanabadi

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearch

Abstract

Fault detection in supermarket refrigeration systems is an important topic due to both economic and food safety reasons. If faults can be detected and diagnosed before the system drifts outside the specified operational envelope, service costs can be reduced and in extreme cases the costly discarding of food products can be avoided. In the situations where the operational requirements can be met with a fault present, the system will operate with a higher energy consumption increasing the cost of operation. The objective of this study is to develop a robust method for detecting air circulation faults in display cabinets under the wide operational conditions that display cabinets are exposed to. The approach described uses a non- linear parity equation comparing the heat transfer rates of the air and the refrigerant. The paper presents the detection method and discusses the application of the method on experimental results obtained in a laboratory.
Original languageDanish
Title of host publicationIIR Confernce, Illinois, USA, July 2002
Publication date2002
Publication statusPublished - 2002
EventDetecting Fan Faults in refrigerated Cabinets -
Duration: 19 May 2010 → …

Conference

ConferenceDetecting Fan Faults in refrigerated Cabinets
Period19/05/2010 → …

Cite this

Thybo, C., Rasmussen, B. D., & Izadi-Zamanabadi, R. (2002). Detecting Fan Faults in refrigerated Cabinets. In IIR Confernce, Illinois, USA, July 2002
Thybo, C. ; Rasmussen, B.D. ; Izadi-Zamanabadi, Roozbeh. / Detecting Fan Faults in refrigerated Cabinets. IIR Confernce, Illinois, USA, July 2002. 2002.
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abstract = "Fault detection in supermarket refrigeration systems is an important topic due to both economic and food safety reasons. If faults can be detected and diagnosed before the system drifts outside the specified operational envelope, service costs can be reduced and in extreme cases the costly discarding of food products can be avoided. In the situations where the operational requirements can be met with a fault present, the system will operate with a higher energy consumption increasing the cost of operation. The objective of this study is to develop a robust method for detecting air circulation faults in display cabinets under the wide operational conditions that display cabinets are exposed to. The approach described uses a non- linear parity equation comparing the heat transfer rates of the air and the refrigerant. The paper presents the detection method and discusses the application of the method on experimental results obtained in a laboratory.",
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Thybo, C, Rasmussen, BD & Izadi-Zamanabadi, R 2002, Detecting Fan Faults in refrigerated Cabinets. in IIR Confernce, Illinois, USA, July 2002. Detecting Fan Faults in refrigerated Cabinets, 19/05/2010.

Detecting Fan Faults in refrigerated Cabinets. / Thybo, C.; Rasmussen, B.D.; Izadi-Zamanabadi, Roozbeh.

IIR Confernce, Illinois, USA, July 2002. 2002.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearch

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T1 - Detecting Fan Faults in refrigerated Cabinets

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AU - Rasmussen, B.D.

AU - Izadi-Zamanabadi, Roozbeh

PY - 2002

Y1 - 2002

N2 - Fault detection in supermarket refrigeration systems is an important topic due to both economic and food safety reasons. If faults can be detected and diagnosed before the system drifts outside the specified operational envelope, service costs can be reduced and in extreme cases the costly discarding of food products can be avoided. In the situations where the operational requirements can be met with a fault present, the system will operate with a higher energy consumption increasing the cost of operation. The objective of this study is to develop a robust method for detecting air circulation faults in display cabinets under the wide operational conditions that display cabinets are exposed to. The approach described uses a non- linear parity equation comparing the heat transfer rates of the air and the refrigerant. The paper presents the detection method and discusses the application of the method on experimental results obtained in a laboratory.

AB - Fault detection in supermarket refrigeration systems is an important topic due to both economic and food safety reasons. If faults can be detected and diagnosed before the system drifts outside the specified operational envelope, service costs can be reduced and in extreme cases the costly discarding of food products can be avoided. In the situations where the operational requirements can be met with a fault present, the system will operate with a higher energy consumption increasing the cost of operation. The objective of this study is to develop a robust method for detecting air circulation faults in display cabinets under the wide operational conditions that display cabinets are exposed to. The approach described uses a non- linear parity equation comparing the heat transfer rates of the air and the refrigerant. The paper presents the detection method and discusses the application of the method on experimental results obtained in a laboratory.

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Thybo C, Rasmussen BD, Izadi-Zamanabadi R. Detecting Fan Faults in refrigerated Cabinets. In IIR Confernce, Illinois, USA, July 2002. 2002