Spot the difference! : On the way towards automated fault handling in district heating buildings
Författare
Summary, in English
The results show that a multitude of different faults may occur in a customer installation. However, some faults are more common than others, and these faults should be prioritized when developing fault detection methods using data analysis. There is also a need to develop a mutual way to name faults that occur in the installation. Today, the district heating utilities use different words when talking about the same faults, making it hard to compare results from different district heating systems. It also makes it hard to create labelled data sets, which are needed to develop and validate successful fault detection tools based on data analysis. However, two different data analysis methods for fault detection have been developed without access to labelled data. Both methods show that it is possible to utilize customer data analysis to detect faults in customer installations.
To realize the full potential of the fault detection tools, the utilities need to utilize them on a larger scale within their organization. Important organizational aspects include identifying a clear stakeholder in the fault handling process and calculating the economic value of eliminating faults. There is also a need to change the current fault handling processes to better align with automated fault detection tools. Therefore, an important result in this thesis is a suggestion for how a fault handling process based on data analysis may be designed.
District heating utilities may use the results of this thesis to improve their fault handling processes of customer installations, thereby reducing their return temperatures and improving the possibilities of district heating being part of the future energy systems.
Avdelning/ar
Publiceringsår
2021
Språk
Engelska
Fulltext
Dokumenttyp
Doktorsavhandling
Förlag
Energy Sciences, Lund University
Ämne
- Energy Engineering
Nyckelord
- Customer installations
- Customer data
- Data analysis
- District heating
- Experience from industry
- Fault detection
- Fault handling
- Fault labelling
- Return temperatures
- Substation performance
- Taxonomy
Status
Published
Handledare
- Marcus Thern
- Kerstin Sernhed
- Per-Olof Johansson Kallioniemi
- Patrick Lauenburg
Försvarsdatum
20 augusti 2021
Försvarstid
09:00
Försvarsplats
Lecture hall KC:A, Kemicentrum, Naturvetarvägen 14, Faculty of Engineering LTH, Lund University, Lund. Zoom: https://lu-se.zoom.us/j/68916430484
Opponent
- Svend Svendsen (Prof.)