An Extension Theory-Based Fault Diagnosis Method for an Air Source Heat Pump

  • Yudong Xia
  • Qiang DingEmail author
  • Shu Jiangzhou
  • Yin Liu
  • Xuejun Zhang
Conference paper
Part of the Environmental Science and Engineering book series (ESE)


Fault diagnosis for air source heat pumps (ASHPs) is essential to maintain system’s operational efficiency and safety. This paper reports a new extension theory-based fault diagnosis method for an ASHP system. An experimental ASHP was set up in environment chambers. Using the experimental ASHP, abnormal operations under five single faults imposed, including compressor valve leakage, reversing valve leakage, condensing airflow faulting, refrigerant liquid line restriction, and refrigerant charge fault, were implemented, and the related fault data obtained. The extension diagnosis method based on the extended correlation function and the matter-element model was then proposed to identify the different fault types. The diagnosis results showed that the proposed fault diagnosis method was able to detect the malfunction types occurring in the experimental ASHP system correctly and promptly.


Air source heat pump Matter-element model Fault diagnosis Extension theory 



The financial supports for the Natural Science Foundation of Zhejiang Province (Project No. LQ19E060007) are gratefully acknowledged.


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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Yudong Xia
    • 1
    • 2
  • Qiang Ding
    • 1
    Email author
  • Shu Jiangzhou
    • 1
  • Yin Liu
    • 1
  • Xuejun Zhang
    • 2
  1. 1.School of AutomationInstitute of Energy Utilization and Automation, Hangzhou Dianzi UniversityHangzhouChina
  2. 2.Institute of Refrigeration and Cryogenics, Zhejiang UniversityHangzhouChina

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