Customer case:

Optimizing performance of BFB Boiler by improving maintenance process, shut-down planning and digital support tools with Borås Energi and Miljö

Together through a Performance Agreement Valmet and Borås Energi & Miljö enable stable production by minimizing unforeseen shutdowns. Borås Energi & Miljö´s BFB (Bubbling Fluidized Bed) Boiler was delivered and started up by Valmet 2018. The cooperation started during the take-over of the plant back in 2019.

Summary
Location Borås Energi och Miljö, Sobacken, Sweden
Challenge

Enable stable production by minimizing unforeseen shutdowns. Reduce long support lead times which can lead to underperformance of the BFB Boiler.

BFB Boiler with steam capacity of 120 MWth ,48 kg/s, 139 bar, 540 °C

Fuels: Forest residues, bark, wood chips

Solution

Process optimization, operation support and continuous plant development activities. was implemented together with optimization of the maintenance process.

The comprehensive 3-year Performance Agreement also included:

  • Performance evaluation 4 times per year
  • Digital tools in use for efficient, fast support and process data transfer
  • Shut-down planning and effective supervision
  • 24/7 support via Customer portal and Valmet Performance Center
  • On-demand process and operation support
  • Test of Boiler Safety Related System (SRS test)
  • Annual inspections of main equipment and tube thickness measurement program
  • Shutdown planning and supervision
  • Performance evaluation and reporting 4 times per year
  • Spare part management
Results

Unplanned downtime was minimized, and overall performance increased through fast and effective support, scheduled maintenance stops, and continuous process development based on performance evaluations and inspections.

Key words Process optimization, spare parts, Sweden, Performance Agreement