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Efficient health monitoring of buildings using failure modes and effects analysis case study: Air handling unit system

Parhizkar, T ; Sharif University of Technology | 2020

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  1. Type of Document: Article
  2. DOI: 10.1016/j.jobe.2019.101113
  3. Publisher: Elsevier Ltd , 2020
  4. Abstract:
  5. System health management based on condition monitoring is of great value and significance for improving system performance and reliability. As more data from condition monitoring is obtained, the efficiency of system health monitoring improves. However, increasing the amount of data by installing new sensors on system components is restricted by a variety of factors such as budget, weight and space allowance. Therefore, sensor selection in the most optimal manner in order to achieve maximum valuable information from system is an important issue. In this study, a novel concept is introduced that can be used in sensor combination optimization problems. This concept employs failure modes and effect analysis method in signal information value quantification procedure. To verify the effectiveness of the proposed methodology, an optimization tool is developed based on the proposed methodology for an air handling unit as a case study. This tool offers sensor combination optimization and visualization of key failure mode parameters. Results show that the optimal sensor combination lead to a maximum information on system health considering budget limits. In addition, the sensitivity analysis on severity factor of component failures is performed. Results indicate that, by increasing the severity factor of a component failure, the optimization model select sensors that monitor more information on that failure mode. According to the results obtained, the proposed methodology can be used in maximizing the performance of health monitoring and management of complex systems with numerous applications including aerospace, oil and gas industry, and medical technology. © 2019 Elsevier Ltd
  6. Keywords:
  7. Air handling unit ; Efficient health monitoring ; Failure modes and effect analysis (FMEA) method ; Sensor combination optimization ; Biomedical engineering ; Budget control ; Failure (mechanical) ; Failure modes ; Fault detection ; Gas industry ; Health ; Optimization ; Safety factor ; Sensitivity analysis ; Air handling units ; Effect analysis ; Failure modes and effects analysis ; Health monitoring ; Performance and reliabilities ; Sensor combinations ; System health management ; System health monitoring ; Condition monitoring
  8. Source: Journal of Building Engineering ; Volume 29 , 2020
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S235271021931246X