PRELIMINARY DESIGN REQUIREMENTS ARGONNE BOILING REACTOR (ARBOR) FACILITY. Revision I Page: 15 of 161
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c. Reactor Feed-Water Pump or Pumps
e. Connecting Piping and Valves .
The primary system is shown schematically in Fig. 9.
This flow diagram represents the present concept of the system and
should not be considered as final. A tentative arrangement of the equip-
ment can be seen in Figs. 4, 5, 6, 7, and 8. The total water capacity of
the reactor and primary system is about 80 tons. All components of the
primary system, including piping and valves, that are in contact with pri-
mary system fluid will be constructed of materials such as Types 304,
316, or 347 stainless steel.
2. Forced-Circulation Water Coolers
These heat exchangers are of the conventional, evaporative
condenser type with fixed tube sheets and bowed tubes. Secondary coolant
will be allowed to boil on the shell side, which will be designed for operation
at 600 psi.
The temperature difference between the primary fluid in the
tube and the secondary fluid on the shell side will be maintained at less than
150F by controlling the pressure on the shell side. The units are basically
designed in accordance with the ASME boiler code for a design pressure of
2500 psia and a design temperature of 690F on the tube or primary side;
800 psia design pressure and 550F design temperature on the shell or sec-
The coolers receive their flow from the forced-circulation
pumps and remove heat from the water in specific amounts dictated by re-
quirements of the particular simulated system being run. Heat removal is
adjusted by flow-control valve operation and pressure regulation of the shell
side coolant. The subcooled and metered water flow is returned to the reactor
vessel inlet and through the reactor core. The reactor core discharges satu-
rated water which mixes with the feed water in the downcomer section of the
pressure vessel. This slightly subcooled mixture then goes to the forced-
circulation pump inlet.
3. Steam Condensers
These heat exchangers are similar in design to the forced-
circulation water coolers, except for head load and fluid flow specifications.
Saturated steam from the reactor vessel, which is metered
by orifices (Fig. 9), passes through throttling valves and into the main steam
condensers. In order to accommodate the wide ranges of pressures and
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Fromm, L.W.; Bernsen, S.A.; Bullinger, C.F. & Matousek, J.F. PRELIMINARY DESIGN REQUIREMENTS ARGONNE BOILING REACTOR (ARBOR) FACILITY. Revision I, report, July 15, 1957; Lemont, Illinois. (https://digital.library.unt.edu/ark:/67531/metadc1023272/m1/15/: accessed March 26, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.