NDLI: A new electrical method on airflow fault detection of air handling unit (AHU)

Content Provider	IEEE Xplore Digital Library
Author	Dawei He Chen Jiang Harley, R.G. Habetler, T.G. Ran Ding
Copyright Year	2015
Description	Author affiliation: State Grid Corp. of China, Beijing, China (Ran Ding) \|\| Georgia Inst. of Technol., Atlanta, GA, USA (Dawei He; Chen Jiang; Harley, R.G.; Habetler, T.G.)
Abstract	Air handler unit (AHU) is considered as the main part of the HVAC system consuming nearly half of the total energy. Airflow blockage and leakage has become a significant problem in AHU recently. This paper describes an electrical measurement based study and mainly focuses on the airflow blockage fault detection and the estimation of insufficient airflow. It proposes a relatively simple airflow fault-detection method based on the induction machine diagnostic work. The fan torque and speed are estimated in order to get the relationship between the airflow variation and the stator current of the induction motor. A real AHU system is built to detect the airflow variance and the electrical quantities such as stator current and voltage. The obtained results show correct detection of airflow fault in AHU.
Starting Page	1
Ending Page	5
File Size	703511
Page Count	5
File Format	PDF
ISBN	9781479919512
DOI	10.1109/PSC.2015.7101685
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-03-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrical measurement Torque Induction motors Non-intrusive Fault detection Estimation Rotors Airflow rate estimation Stators Harmonic analysis Air handling unit
Content Type	Text
Resource Type	Article

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