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A Methodology for Diagnosing Multiple Simultaneous Faults in Vapor-Compression Air Conditioners.
- Source :
-
HVAC&R Research . Mar2007, Vol. 13 Issue 2, p369-395. 27p. - Publication Year :
- 2007
-
Abstract
- Existing methods addressing automated fault detection and diagnosis (FDD) for vapor-compression air-conditioning equipment have good performance for faults that occur individually but have difficulty handling multiple simultaneous faults. In addition, these methods either require high-cost measurements or measurements over a wide range of conditions for training reference models, the development of which can be time consuming and cost prohibitive. This paper formulates model-based FDD in a generic way and demonstrates that decoupling is the key to handling multiple simultaneous faults. To eliminate a cost-prohibitive overall system model, an alternative physical decoupling methodology to mathematical decoupling is developed. During the mathematical development, a previously developed FDD method termed the statistical rule-based method is reexamined and cast within the general mathematical framework. The paper also includes an evaluation of the FDD method in terms of both sensitivity and robustness. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10789669
- Volume :
- 13
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- HVAC&R Research
- Publication Type :
- Academic Journal
- Accession number :
- 24818843
- Full Text :
- https://doi.org/10.1080/10789669.2007.10390959