This morning, the report from the National Technical University of Athens (NTUA), [1], [2], [3], [4], [5] prepared by Professor Dimitris Karonis, was submitted to the investigating judge of Larissa. The report aimed to determine the causes of the fireball following the collision of the two trains at Tempi.
The report concludes that engine oils (silicone oils), under conditions similar to those of the accident, can create a fireball, as the expert states that this oil can ignite at temperatures of 330 degrees Celsius and above.
Regarding the possibility of the fireball being caused by illegal, flammable cargo, D. Karonis referenced the Hellenic Police report and three videos from the security company INTERSTAR, concluding that there did not appear to be such cargo on the freight train.
The report (123 pages) is based on analyses by the General Chemical State Laboratory, site inspections, and the collection of materials from the collision area.
Additionally, today, the expert report by NTUA Professor Petros Tsakiridis was submitted to the investigator. This report is part of the final findings from the special team of the fire department that examined the wreckage of the freight train at Koulouri, according to Kathimerini.
The report states that the pieces of the cockpit and the frames of the electric engine, along with the samples taken, are not burnt, indicating no explosion. They only show deformations caused by the impact of the train collision.
The full NTUA report is available here.
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