Workpackage 1: Experiment

Experimental investigation of the CHF and Post-CHF heat transfer, which will be coordinated by the LES.

► IATF/KIT: Investigation with R134a in a circular tube and a single-rod channel.

► LES/TUM: Investigation with H2O in two different circular tubes.

► IKE/University Stuttgart: Investigation with CO2 in two different circular tubes.

► The experimental Data will be used to build up a Database, which will include Data of the departure from nucleate boiling (DNB) and dryout phenomena as well as the Post-CHF.

Workpackage 2: Model development

Model development of the CHF and Post-CHF heat transfer as well as with the aid of the database, fluid-to-fluid scaling models, which will be coordinated by the IKE.

► IATF/KIT: Modelling of the Post-CHF heat transfer and the droplet size as well as the droplet velocity with R134a.

► LES/TUM: Modelling of the departure from nucleate boiling (DNB) heat transfer with H2O.

► IKE/University Stuttgart: Modelling of the dryout heat transfer with CO2.

► Development of fluid-to-fluid scaling models.

► Validation and assessment of the models.

Workpackage 3: ATHLET improvement

Improvement of the thermohydraulic software ATHLET, which will be coordinated by the GRS.

► GRS will provide and evaluate the latest ATHLET-version.

► With the aid of GRS, the new models will be implemented in to the ATHLET software.

► Validation and assessment of the new models within the latest ATHLET version.

► GRS will do the final implementation of the models, the verification, the validation and documentation.

Workpackage 4: Management/Coordination

Coordination and management of the whole project, which will be coordinated by the IATF/KIT.

► Controlling the progress of the whole project, sub-projects and the milestones, as well as the education activities.

► Organisation of project meetings.

► Speaker and connection between the project and the public.

► Identification of problems and work out of the best possible solution.

Education & maintenance of competence:

Supervision of students and participation in courses and conferences.

► Supervision of bachelor & master students and responsibility for lectures.

► Participation in training courses of the Framatome professional school and multiphase courses.

► Participation in project discussions, in national and international conferences as well as in workshops, for example the Summer school.

► Research in partner- institutions and in international institutions.