Numerična simulacija modela vodno-hlajene tarče diverterja

Tarfila, Patrik (author), Golobič, Iztok (mentor), Končar, Boštjan (comentor)

Diverter fuzijskega reaktorja je izpostavljen stalnemu toku visoko energijskih delcev z gostoto toplotnega toka okoli 10 MW/m2. V fazi razvoja materialov in konceptov aktivnega hlajenja tarč diverterja je potrebno, običajno na pomanjšanih modelih, najprej izvesti numerične simulacije in eksperimente v okolju podobnem razmeram v fuzijskem reaktorju. V sklopu te naloge smo izvedli predhodne računalniške simulacije modela vodno-hlajene tarče diverterja pri pogojih, ki ustrezajo eksperimentalni napravi v raziskovalnem centru Juliech v Nemčiji, kjer bo kasneje opravljen eksperiment. V nalogi je predstavljena zasnova monobloka tarče, izdelava geometrije, računske mreže in računalniškega modela. Rezultati opravljenih računalniških simulacij so pokazali, da maksimalna temperatura monobloka tarče preseže 1300 °C, ob upoštevanju hlajenja s sevanjem okoliških površin, pa je lahko tudi za 50 °C nižja. Rezultate padca tlaka v hladilni cevi smo preverili z empiričnimi korelacijami.

• Language: Slovenian
• Keywords: fuzijski reaktor DEMO, diverterji, prenos toplote, numerične simulacije
• Work type: Final paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [P. Tarfila]
• Year: 2020
• Number of pages: XI, 30 f.
• PID: 20.500.12556/RUL-117855
• UDC: 621.039.6:536.2:519.62(043.2)
• COBISS.SI-ID: 24277251
• Publication date in RUL: 31.07.2020

TARFILA, Patrik, 2020, Numerična simulacija modela vodno-hlajene tarče diverterja [online]. Bachelor’s thesis. Ljubljana : P. Tarfila. [Accessed 30 March 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=117855

Secondary language

• Language: English
• Title: Numerical simulation of water-cooled divertor target model

Abstract

The divertor in fusion reactor is exposed to a constant flow of high-energy particles with a heat flux density of about 10 MW/m2. In the development phase of materials and concepts of active cooling of diverter targets, numerical simulations and experiments in an environment similar to the conditions in a fusion reactor must be performed first, usually on scale-down models. In the frame of this work, preliminary numerical simulations of a water-cooled diverter target model were performed, under the conditions corresponding to an experimental facility at the Juliech Research Center (FZJ) in Germany, where an experiment will be also performed later. In this work the design of the target monoblock, the geometry layout, generation of computional mesh and setup of numerical model are presented. The results of the performed computional simulations showed that the maximum temperature of the target monoblock exceeds 1300 °C, and by taking into account the thermal radiation cooling of the surrounding surfaces, it can also be 50 °C lower. The results of the pressure drop in the cooling pipe were verified by empirical correlations.

• Keywords: fusion reactor DEMO, divertors, heat transfer, numerical simulations