U.S. Reactor Containment Technology: a Compilation of Current Practice in Analysis, Design, Construction, Test, and Operation, Volume 1 Page: 1-39
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ORNL Dwg. 64-1P-2
Fig. 1.7. Gas-Cooled Reactor.
problem. In general, containment pressure requirements for a gas-cooled
plant are not as strenuous as those for a comparable pressurized-water
plant. The design pressure for a high-pressure container could be ex-
pected to be less for a gas-cooled reactor, and it should be possible to
design suitable low-pressure or pressure-relief containers. Pressure-
suppression containment, however, would not be suitable.
1.3.4 Organic-Cooled Reactors
Several organic liquids are attractive as coolant-moderators because
of their high boiling points and ease of handling. In many of the con-
cepts, reactor heat that is removed from the fuel by the coolant is trans-
ferred to the steam system via the steam generator, as shown schematically
in Fig. 1.8. Steam drives the turbine. High coolant pressures are not
required, and temperatures of up to 700F can be attained at pressures
of 200 psia or less. Steam pressures range up to about 600 psia. Most
organic coolants are quite combustible, so it is desirable to limit the
oxygen content of the containment in order to prevent fire in the event
of a coolant leak. In 1962 there were only five organic-moderated reac-
tors in the world.
Containment pressure requirements of an organic reactor are not as
demanding as those for a water-cooled reactor. Total containment with
a low container design pressure is illustrated by the Piqua reactor.
The design pressure in this case is 5 psig. The vessel is cylindrical
with hemispherical heads.
PRIMARY SYSTEMS CONDITIONS
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Cottrell, William B. & Savolainen, A. W. U.S. Reactor Containment Technology: a Compilation of Current Practice in Analysis, Design, Construction, Test, and Operation, Volume 1, report, August 1965; Oak Ridge, Tennessee. (https://digital.library.unt.edu/ark:/67531/metadc101033/m1/67/: accessed March 18, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.