Experimental and Computational Investigation of Granular Flow in a Pebble Bed Reactor

Researcher
Vaibhav Khane
Institute
Missouri University of Science and Technology, USA
Department
Chemical Engineering
Supervisor
Muthanna H. Al Dahhan

Pebble Bed Reactor (PBR) is a 4th generation nuclear reactor design concept and similar to moving bed reactor used in chemical and petroleum industries. In a PBR, nuclear fuel is in the form of spherical pebbles and moves slowly in the core under the influence of gravity. Due to the dynamic core of PBR, an investigation of slow and dense granular flow of pebbles is of paramount importance and required in reactor safety and performance analyses. As a part of the dissertation, an integrated experimental and computational study of granular flow in a PBR has been carried out. Experimental investigation of slow and dense granular flow in a mimicked test reactor is carried out using advanced radioisotopes based flow visualization techniques such as radioactive particle tracking (RPT). Also, discrete element method (DEM) based simulations of test reactor geometry, capable of providing crucial information about granular flow in a full scale PBR, are carried out using EDEM code.

Results

Khane, V., Mueller, G.E., Al-Dahhan, M.H., Discrete Element Method Based Simulation of Pebble Bed Test Reactor, Transactions of American Nuclear Society, Vol. 105, pp.706-707 (2011)

Herbig, T. Khane, V.,  Mueller, G.E., Al-Dahhan, M.H., Determination of Interaction Parameters for EDEM Based Simulations of Pebble Bed Test Reactor Transactions of American Nuclear Society, Vol. 105, pp.701-702  (2011)

Khane, V., Mueller, G.E., Al-Dahhan M.H., Continuation of Experts in Discrete Element Modeling (EDEM) Validation for Packed Bed Structural Properties, AIChE-2011 Annual Meeting,  October 2011, Minnesota

Khane, V., Mueller, G.E., Al-Dahhan, M.H., Experts in Discrete Element Modeling (EDEM) Validation for Packed Bed Structural Properties, AIChE-2010 Annual Meeting, November 2010, Salt Lake City

Khane, V.,  Mueller, G.E., Al-Dahhan, M.H., Parametric Sensitivity Study of Interaction Properties for Simulation of Realistic Packed Bed Structures, AIChE-2012 Annual Meeting, October 28-November 2, Pittsburg, PA

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