Articles

Insights, case studies, and know-how from FESIOS — steel plant simulation.

Insights

Five lessons from five years of scrap yard simulation

After simulating scrap yards at more than 15 steel plants, these are the five things we see getting underestimated every time — from pile height effects to non-linear truck scaling.

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Case Study

Is your scrap yard ready for a production increase?

A production increase to 1.3 million tonnes per year didn't just challenge the melt shop — it tested the scrap yard too. How FESIOS identified and resolved the bottleneck.

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Case Study

ArcelorMittal Belval: a deep dive into the simulation behind the modernization

The full technical story behind ArcelorMittal Belval's production enhancement — from scrap yard pile height dynamics to run-out area bottlenecks. How a single simulation model covered the entire production chain.

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Insights

Four ways to exchange EAF electrodes, compared by EAF idle time and the working time of the cranes.

Each electrode exchange causes idle time for the EAF, and the crane is occupied for an even longer duration. Compare four exchange methods by EAF idle time and crane working time.

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Insights

How to determine crane bottlenecks in the EAF charging bay

A step-by-step method for anyone planning to add an EAF to an existing BOF melt shop. Verify that your cranes won't become the bottleneck.

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Insights

Productivity Losses of the EAF due to Unconsidered Crane Tasks

For newly constructed EAF facilities, planners should remain vigilant about potential output reductions stemming from overlooked crane operations. Why averages don't work for crane utilization.

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Case Study

15% production increase at AM Long Product Luxembourg

How FESIOS ensured that the cranes at ArcelorMittal Long Product Luxembourg could handle a 15% production increase and the additional workload from a new vacuum degasser.

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Case Study

How ArcelorMittal Belval validated a 15% production increase before investing

ArcelorMittal Luxembourg's largest modernization since the 1990s — validated with simulation before a single Euro was spent. 1.3 MTPY confirmed, scrap loading cut by up to 7 minutes.

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Case Study

Green steel transformation at ArcelorMittal Eisenhüttenstadt

How FESIOS simulated eight plant configurations to quantify productivity impacts and guide ArcelorMittal Eisenhüttenstadt's green steel transformation.

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Insights

Three key factors for EAF productivity in green steel hybrid melt shops

The number of EAFs, charge material availability, and steel grade requirements — three factors that determine EAF productivity in hybrid melt shops transitioning to green steel.

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Insights

Never use averages for crane bottleneck detection in melt shops

Why crane utilization percentages are misleading. The difference between momentary and long-term bottlenecks, and how to identify when cranes truly limit production.

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Case Study

How Dillinger chose where to put their EAF — and avoided double-digit millions in unnecessary CAPEX

Dillinger Hütte had two options for their new Electric Arc Furnace: the 'safe' choice with guaranteed demolition costs, or the 'risky' one that nobody trusted. Simulation proved which was actually better.

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Case Study

How voestalpine Donawitz de-risked four modernization phases with one simulation model

From new caster integration to full EAF conversion — voestalpine Stahl Donawitz used a single simulation model to stress-test every step of their green steel transition.

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Technical

Virtual commissioning: how we connected 10 automation systems through one digital melt shop

Testing 10 automation systems together before the real plant starts — by using a digital melt shop as the missing link between EAF, AOD, ladle furnaces, and Level 3 systems.

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