Thermal Hydraulics of Helium-Cooled Finger-Type Divertors at Higher Incident Heat Fluxes

Helium Cooled Tungsten Heat Sinks

Optimization of Pin-fin Arrays for Helium-cooled Finger-type Divertor

The helium-cooled modular divertor concept with integrated pin array developed by the Karlsruhe Research Center (FZK) is unusual among helium-cooled tungsten divertor designs in that it relies upon an array of pin fins on the back of the cooled surface, instead of jet impingement, to cool the plasma-facing surface. The Georgia Tech group experimentally studied a similar design constructed of br...

Thermal Hydraulics Design Limits

The following discussion of PWR steady state and transient design limits is extracted from the theses of Carter Shuffler and Jarrod Trant while the BWR discussion is extracted from Paolo Ferroni's thesis (covers steady state only). These limits are a simplified and narrower discussion than the relevant NRC standard review plan you will also be referred to. All materials are directly extracted f...

Verification of Thermal Performance Predictions of Prototypical Multi-jet Impingement Helium-cooled Divertor Module

An experimental investigation of the thermal performance of the He-Cooled Multi-Jet (HEMJ) modular divertor design developed by the Karlsruhe Research Center (FZK) was previously performed at Georgia Tech using air at Reynolds numbers (Re) spanning those at which the actual He-cooled divertor is to be operated. The electrically heated test section was constructed from a brass alloy with nearly ...

An Experimental Study of the Effects of Solid-to-coolant Thermal Conductivity Ratio in Helium-cooled Divertor Modules

As part of the ARIES study, the Georgia Tech group has experimentally studied the thermal performance of a helium-cooled ‘finger-type’ tungsten divertor design that uses jet impingement and a pin-fin array to cool the plasma-facing surface. These studies were performed using air at Reynolds numbers Re, spanning those for prototypical operating conditions. A brass test section heated with an oxy...