Semi-Supervised Machine Learning for Fault Detection and Diagnosis of a Rooftop Unit

Most heating, ventilation, and air-conditioning (HVAC) systems operate with one or more faults that result in increased energy consumption and that could lead to system failure over time. Today, most building owners are performing reactive maintenance only and may be less concerned or less able to a...

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Main Authors: Mohammed G. Albayati, Jalal Faraj, Amy Thompson, Prathamesh Patil, Ravi Gorthala, Sanguthevar Rajasekaran
Format: Article
Language:English
Published: Tsinghua University Press 2023-06-01
Series:Big Data Mining and Analytics
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Online Access:https://www.sciopen.com/article/10.26599/BDMA.2022.9020015
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author Mohammed G. Albayati
Jalal Faraj
Amy Thompson
Prathamesh Patil
Ravi Gorthala
Sanguthevar Rajasekaran
author_facet Mohammed G. Albayati
Jalal Faraj
Amy Thompson
Prathamesh Patil
Ravi Gorthala
Sanguthevar Rajasekaran
author_sort Mohammed G. Albayati
collection DOAJ
description Most heating, ventilation, and air-conditioning (HVAC) systems operate with one or more faults that result in increased energy consumption and that could lead to system failure over time. Today, most building owners are performing reactive maintenance only and may be less concerned or less able to assess the health of the system until catastrophic failure occurs. This is mainly because the building owners do not previously have good tools to detect and diagnose these faults, determine their impact, and act on findings. Commercially available fault detection and diagnostics (FDD) tools have been developed to address this issue and have the potential to reduce equipment downtime, energy costs, maintenance costs, and improve occupant comfort and system reliability. However, many of these tools require an in-depth knowledge of system behavior and thermodynamic principles to interpret the results. In this paper, supervised and semi-supervised machine learning (ML) approaches are applied to datasets collected from an operating system in the field to develop new FDD methods and to help building owners see the value proposition of performing proactive maintenance. The study data was collected from one packaged rooftop unit (RTU) HVAC system running under normal operating conditions at an industrial facility in Connecticut. This paper compares three different approaches for fault classification for a real-time operating RTU using semi-supervised learning, achieving accuracies as high as 95.7% using few-shot learning.
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spelling doaj-art-1bf1ede38a0f4fc780b99a9c0ab8c9bc2025-02-03T04:58:51ZengTsinghua University PressBig Data Mining and Analytics2096-06542023-06-016217018410.26599/BDMA.2022.9020015Semi-Supervised Machine Learning for Fault Detection and Diagnosis of a Rooftop UnitMohammed G. Albayati0Jalal Faraj1Amy Thompson2Prathamesh Patil3Ravi Gorthala4Sanguthevar Rajasekaran5Department of Mechanical Engineering, School of Engineering, University of Connecticut, Storrs, CT 06269, USADepartment of Computer Science and Engineering, University of Connecticut, Storrs, CT 06269, USADepartment of Mechanical Engineering, School of Engineering, University of Connecticut, Storrs, CT 06269, USADepartment of Mechanical and Industrial Engineering, Tagliatela College of Engineering, University of New Haven, West Haven, CT 06516, USADepartment of Mechanical and Industrial Engineering, Tagliatela College of Engineering, University of New Haven, West Haven, CT 06516, USADepartment of Computer Science and Engineering, University of Connecticut, Storrs, CT 06269, USAMost heating, ventilation, and air-conditioning (HVAC) systems operate with one or more faults that result in increased energy consumption and that could lead to system failure over time. Today, most building owners are performing reactive maintenance only and may be less concerned or less able to assess the health of the system until catastrophic failure occurs. This is mainly because the building owners do not previously have good tools to detect and diagnose these faults, determine their impact, and act on findings. Commercially available fault detection and diagnostics (FDD) tools have been developed to address this issue and have the potential to reduce equipment downtime, energy costs, maintenance costs, and improve occupant comfort and system reliability. However, many of these tools require an in-depth knowledge of system behavior and thermodynamic principles to interpret the results. In this paper, supervised and semi-supervised machine learning (ML) approaches are applied to datasets collected from an operating system in the field to develop new FDD methods and to help building owners see the value proposition of performing proactive maintenance. The study data was collected from one packaged rooftop unit (RTU) HVAC system running under normal operating conditions at an industrial facility in Connecticut. This paper compares three different approaches for fault classification for a real-time operating RTU using semi-supervised learning, achieving accuracies as high as 95.7% using few-shot learning.https://www.sciopen.com/article/10.26599/BDMA.2022.9020015semi-supervised machine learningfault classificationfault detection and diagnosticsheating, ventilation, and air-conditioningdata-driven modelingenergy efficiency
spellingShingle Mohammed G. Albayati
Jalal Faraj
Amy Thompson
Prathamesh Patil
Ravi Gorthala
Sanguthevar Rajasekaran
Semi-Supervised Machine Learning for Fault Detection and Diagnosis of a Rooftop Unit
Big Data Mining and Analytics
semi-supervised machine learning
fault classification
fault detection and diagnostics
heating, ventilation, and air-conditioning
data-driven modeling
energy efficiency
title Semi-Supervised Machine Learning for Fault Detection and Diagnosis of a Rooftop Unit
title_full Semi-Supervised Machine Learning for Fault Detection and Diagnosis of a Rooftop Unit
title_fullStr Semi-Supervised Machine Learning for Fault Detection and Diagnosis of a Rooftop Unit
title_full_unstemmed Semi-Supervised Machine Learning for Fault Detection and Diagnosis of a Rooftop Unit
title_short Semi-Supervised Machine Learning for Fault Detection and Diagnosis of a Rooftop Unit
title_sort semi supervised machine learning for fault detection and diagnosis of a rooftop unit
topic semi-supervised machine learning
fault classification
fault detection and diagnostics
heating, ventilation, and air-conditioning
data-driven modeling
energy efficiency
url https://www.sciopen.com/article/10.26599/BDMA.2022.9020015
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