Take a sneak peek at the new NIST.gov and let us know what you think!
(Please note: some content may not be complete on the beta site.).
NIST Authors in Bold
|Author(s):||Minsung Kim; Seok H. Yoon; Piotr A. Domanski; William V. Payne;|
|Title:||Design of a steady-state detector for fault detection and diagnosis of a residential air conditioner|
|Published:||May 01, 2008|
|Abstract:||This paper presents a general methodology for developing a steady-state detector for a vapor compression system based on a moving window and using standard deviations of seven measurements selected as features. The feature thresholds and optimized moving window size were based upon steady-state no-fault tests and startup transient tests. The study showed that evaporator superheat and condenser subcooling were sufficient for determining the onset of steady-state during the startup transient. However, they misidentified steadystate during indoor temperature change tests where evaporator saturation temperature and air temperature change across the evaporator were needed for proper steady-state identification. Hence, the paper recommends including all fault detection and diagnosis (FDD) features in the steady-state detector to ensure the robustness of the detector because different features may play key roles with different transients.|
|Citation:||International Journal of Refrigeration|
|Pages:||pp. 790 - 799|
|Keywords:||detection, steady state, air conditioning, residential buildings, compressing, tests, methodology, windows, fault trees, refrigerants|
|Research Areas:||Building Equipment Efficiency|
|PDF version:||Click here to retrieve PDF version of paper (660KB)|