U.S. Reactor Containment Technology: a Compilation of Current Practice in Analysis, Design, Construction, Test, and Operation, Volume 1 Page: 1-45
The following text was automatically extracted from the image on this page using optical character recognition software:
ORNL D. 6.-2-1~'R
Fig. 1.11. Pressure-Suppression Containment Shown with
components: (1) a pressure vessel or "dry-well" enclosing at least the
reactor and (2) a pressure-suppression chamber or "wet-well" partly full
of water. The dry well vents through a number of pipes whose discharge
ends are submerged in the water within the suppression chamber. Although
intended primarily to condense steam, the water pool may perhaps also
remove some of the condensable fission products and some particulate and
gaseous fission products.
The dry well is designed to withstand the static and dynamic pres-
sures and such other loadings as would result from the maximum credible
accident. The suppression chamber experiences relatively low accident
pressure, which is a function of the efficiency of the suppression sys-
tem, volume of the noncondensables, transport from the dry well, and the
size of the air chamber.
Pressure-suppression containment systems are attractive in some ap-
plications because the size of the dry-well vessel is less than that of
a complete containment shell. This advantage, however, is compromised
by the fact that, in general, only the reactor and a portion, but not all,
of the primary system are contained within the inner vessel. Thus in
order to preclude the occurrence of a major loss-of-coolant accident oc-
curring outside the containment, the primary system lines penetrating the
containment must be provided with isolation valves. These valves must be
provided in duplicate as insurance against the failure of a single valve
or to account for breaks inside and outside the containment.
Here’s what’s next.
This report can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Report.
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/m1/73/: accessed March 22, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.