IAEA NAPRO Coordinated Research Project : Heat Transfer and Pressure Drop Correlations for Sodium Cooled Systems
Résumé
In 2013 the International Atomic Energy Agency
(IAEA) established a Coordinated Research Project
(CRP) on “Sodium properties and safe operation of
experimental facilities in support of the development and
deployment of Sodium Cooled Fast Reactors”, the socalled CRP-NAPRO project to be carried out in the time
period of 2013–2017. This activity has the aim to
establish a common database of sodium properties and
related correlations, as well as other important sodium
technology related issues, thus contributing to the
enhanced safety of future sodium cooled systems. The
CRP work package WP 1.2, under the leadership of
Karlsruhe Institute of Technology (KIT), is focused on the
collection and assessment of heat transfer and pressure
drop (friction factor) correlations for sodium cooled
systems. In the end result, this activity will lead to a
recommendation of qualified correlations for conditions
occurring in sodium systems, such as forced convection
and natural convection for circular tubes, rod bundles,
wire-wrapped tubes, etc., which will be published in the
form of separate chapter(s) of a general handbook. This
work is carried out by five participating organizations
from IAEA Member States through the review and
evaluation of the existing correlations and the
development of recommendations for experts working on
sodium cooled systems. The implemented methodology for
WP 1.2 is described, as well as the heat transfer and
pressure drop (friction factor) correlations included in
WP 1.2 and their classification. Major findings to date
related to WP 1.2 are presented in this paper. The last
section of the paper also includes preliminary conclusions
from WP 1.2, as well as a list of the main correlations
used by the participating organizations when simulating
sodium cooled fast reactors and other sodium cooled
systems.
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