Title

Gas Dynamics of a Pebble Bed Reactor

Presenter Information

Kelly O'Bryant

Department

Chemical and Biochemical Engineering

Major

Nuclear Engineering

Research Advisor

Al-Dahhan, Muthanna H.

Advisor's Department

Chemical and Biochemical Engineering

Funding Source

Department of Energy

Abstract

For a Pebble Bed Reactor, there is a complex interaction between the flowing gas and the heat generating pebbles. It is important to understand this interaction in order to accurately account for the gas dispersion and heat exchange in the Pebble Bed Reactor. In the experiment, helium gas will be used as a tracer in an air stream traveling through on a plastic column of pebbles. The air is injected at two locations above and below the column which is three feet in height and 30 cm in diameter. Relative to the pebbles, the gas travels very quickly, so the pebbles are stationary for the experiment. Three samples are taken and analyzed from each injection point. The entire system can be divided into different mixing zones. The data from the samples is analyzed to get an accurate description of the mixing dispersion in the system.

Biography

Kelly O’Bryant is a junior in Nuclear Engineering at the University of Missouri Science and Technology. He has been a Peer Learning Assistant with the LEAD program for three semesters, tutoring students in math and nuclear engineering. Kelly joined Dr. Al- Dahhan in his research with Pebble Bed Nuclear Reactors funded by the Department of Energy in October of 2010.

Research Category

Engineering

Presentation Type

Poster Presentation

Document Type

Poster

Location

Upper Atrium/Hallway

Presentation Date

07 Apr 2010, 1:00 pm - 3:00 pm

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Apr 7th, 1:00 PM Apr 7th, 3:00 PM

Gas Dynamics of a Pebble Bed Reactor

Upper Atrium/Hallway

For a Pebble Bed Reactor, there is a complex interaction between the flowing gas and the heat generating pebbles. It is important to understand this interaction in order to accurately account for the gas dispersion and heat exchange in the Pebble Bed Reactor. In the experiment, helium gas will be used as a tracer in an air stream traveling through on a plastic column of pebbles. The air is injected at two locations above and below the column which is three feet in height and 30 cm in diameter. Relative to the pebbles, the gas travels very quickly, so the pebbles are stationary for the experiment. Three samples are taken and analyzed from each injection point. The entire system can be divided into different mixing zones. The data from the samples is analyzed to get an accurate description of the mixing dispersion in the system.