Dynamic analysis and application of fuel elements pneumatic transportation in a pebble bed reactor

Hongbing Liu, Dong Du, Zandong Han, Yirong Zou and Jiluan Pan

Energy, 2015, vol. 79, issue C, 33-39

Abstract: Almost 10,000 spherical fuel elements are transported pneumatically one by one in the pipeline outside the core of a pebble bed reactor every day. Any failure in the transportation will lead to the shutdown of the reactor, even safety accidents. In order to ensure a stable and reliable transportation, it's of great importance to analyze the motion and force condition of the fuel element. In this paper, we focus on the dynamic analysis of the pneumatic transportation of the fuel element and derive kinetic equations. Then we introduce the design of the transportation pipeline. On this basis we calculate some important data such as the velocity of the fuel element, the force between the fuel element and the pipeline and the efficiency of the pneumatic transportation. Then we analyze these results and provide some suggestions for the design of the pipeline. The experiment was carried out on an experimental platform. The velocities of the fuel elements were measured. The experimental results were consistent with and validated the theoretical analysis. The research may offer the basis for the design of the transportation pipeline and the optimization of the fuel elements transportation in a pebble bed reactor.

Keywords: Pebble bed reactor; Dynamic analysis; Pneumatic transportation; Energy; Fuel (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:79:y:2015:i:c:p:33-39

DOI: 10.1016/j.energy.2014.09.021

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