| 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 |
| Volume: |
31 |
| Issue: |
No. 5 |
| 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 (645KB) |
