Modelling industrial hot-water system within SSAB Borlänge

Background 

The SSAB site in Borlänge has a complex energy system comprising both a steam system and a hot water system. This complexity arises naturally from the numerous components distributed across multiple locations. The use and production of steam and hot water vary depending on operational needs and external factors, such as weather conditions. 

A simulation model of the system could significantly enhance the understanding of how its components interact. In the short term, such a model would improve awareness of the system's functionality and enable more efficient operation. In the long term, it could be used to evaluate energy-saving measures or the impacts of operational changes. 

Thesis Objectives 

The goal of this thesis is to develop a process model of the current system (e.g., using Aspen+), based on system descriptions and updated information from SSAB personnel. The model's validity will be assessed by comparing its output to known measured data. 

Additionally, the thesis will include an evaluation and propose system improvements to address future scenarios, considering expected changes in operations at the site. 

Location 

Most of the work can be conducted remotely. However, approximately five days of on-site visits to Borlänge will be necessary to gain a physical understanding of the facility and meet with personnel. These visits are ideally divided into two occasions, with the first visit early in the project. 

Duration and Scope 

30 ECTS, starting January 2025. 

Compensation 

SSAB offers compensation of 48,000 SEK and will cover necessary travel expenses. 

Contact and Supervisor 

Martin Andersson, martin.andersson@energy.lth.se