SMR Experiments with the MOTEL Test Facility within the Euratom Project McSAFER

The MOTEL test facility of LUT University represents a prototypical integral pressurized water small modular reactor operating with natural circulation. MOTEL has a generic core rod bundle design and a helical coil steam generator. The facility has been used in the Euratom-funded McSAFER project to study the behavior of the helical coil steam generator and core crossflows. In this paper, the steam generator test results are discussed. The first results showed an unstable temperature behavior at higher heating powers. Valuable code validation data has been produced with the first experiments.