Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Estimating the Size of Incipient Faults in HVAC Equipment
It may be necessary to estimate the size of a fault if the fault develops slowly and the associated loss of performance could go unnoticed for a long period of time. This paper describes an observer-based method of estimating the magnitudes of slowly evolving faults in HVAC equipment. The sizes of two types of incipient faults in a cooling coil subsystem are estimated using a fault identification scheme based on a fuzzy relational proportional-integral observer. Because it would take a long time for a fault to develop in a real system, a detailed computer simulation is used to assess the performance of the scheme. The main causes of inaccuracy in the fault estimates are examined and long-term simulation results are presented, which demonstrate that an adaptive version of the scheme can generate satisfactory estimates of the sizes of the faults.
Estimating the Size of Incipient Faults in HVAC Equipment
It may be necessary to estimate the size of a fault if the fault develops slowly and the associated loss of performance could go unnoticed for a long period of time. This paper describes an observer-based method of estimating the magnitudes of slowly evolving faults in HVAC equipment. The sizes of two types of incipient faults in a cooling coil subsystem are estimated using a fault identification scheme based on a fuzzy relational proportional-integral observer. Because it would take a long time for a fault to develop in a real system, a detailed computer simulation is used to assess the performance of the scheme. The main causes of inaccuracy in the fault estimates are examined and long-term simulation results are presented, which demonstrate that an adaptive version of the scheme can generate satisfactory estimates of the sizes of the faults.
Estimating the Size of Incipient Faults in HVAC Equipment
Zhou, Yimin (Autor:in) / Dexter, Arthur (Autor:in)
HVAC&R Research ; 15 ; 151-163
01.01.2009
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
A system-level incipient fault-detection method for HVAC systems
| Taylor & Francis Verlag | 2013
Laboratory Measurements of HVAC Installation and Maintenance Faults
| British Library Online Contents | 2012
Laboratory Measurements of HVAC Installation and Maintenance Faults
| British Library Conference Proceedings | 2012
Online Contents | 2009
| Online Contents | 2009