[cdn-nucl-l] AECL annular fuel

["Jaro" <jaro-10kbq@sympatico.ca>]

http://web.mit.edu/canes/research/nfc/annularfueldesign.html
High-Performance Fuel Design for Next Generation PWRs (Annular Fuel Project)

<SNIP>
AECL successfully loaded two four foot lengths of annular fuel using the
VIPAC approach, achieving a maximum density of 77% of theoretical. This is
insufficient to meet the reference fuel loading requirements, which require
an effective uranium oxide density of at least 85% of theoretical UO2
density.

<SNIP>
Part of this task is to design the fuel irradiation experiment and develop a
fuel performance model. MIT researchers completed manufacturing and testing
of all the components for the in-core test. Two of the VIPAC annular fuel
samples manufactured by AECL were instrumented with thermocouples and
assembled into irradiation capsules.
<END QUOTE>

Question: how does the water get into & out of the internal cooling
passageway ? ....at the ends only, or also at ports along the length of the
full-scale PWR fuel pins ?






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