Two Steam Storage Facilities for a Green Future

With the delivery of two massive steam storage tanks, Kremsmüller recently contributed to what is currently likely Austria’s largest climate protection program: voestalpine in Linz is pursuing a clear path toward decarbonizing its steel production. According to this plan, the transition from coal to electricity in steel production at the Linz and Donawitz sites is expected to reduce Austria’s annual CO₂ emissions by up to five percent. Kremsmüller’s steam storage tanks help store energy efficiently and make it available as needed.

Custom Work in Steinhaus

The two steam storage tanks, each weighing about 100 metric tons and with a wall thickness of 42 mm, were manufactured entirely at Kremsmüller’s headquarters in Steinhaus. They were delivered to Primetals; the end customer is voestalpine.

One interesting detail worth mentioning here is the heat treatment of the two storage tanks: Through a process known as stress-relief annealing, internal stresses in the welds and in the base material were relieved, thereby improving the material properties.
The logistical challenge posed by this project was considerable: Transporting the storage tanks—with a total length of 57 meters for the convoy—to the voestalpine Linz plant site required precise planning and a great deal of experience.

Conclusion

Despite their relatively simple design, the manufacture of the two steam storage tanks was a project that presented unique challenges. Size, weight, and logistical planning all come together here with a clear goal: climate protection through innovative technology.

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