Pressurized Water Reactor (PWR) PWR is the abbreviation for the
Pressurized Water Reactor. These reactors were originally
designed by Westinghouse Bettis Atomic Power Laboratory for
military ship applications, then by the Westinghouse Nuclear
Power Division for commercial applications. The first commercial
PWR plant in the United States was Shippingport, which operated
for Duquesne Light until 1982. In addition to Westinghouse, Asea
Brown Boveri-Combustion Engineering (ABB-CE), Framatome,
Kraftwerk Union, Siemens, and Mitsubishi have typically built
this type of reactor throughout the world. Babcock & Wilcox
(B&W) built a PWR design power plant but used vertical once-
through steam generators, rather than the U-tube design used by
the rest of the suppliers. Industry consolidation has occurred
so that Framatome-ANP and Westinghouse are two key remaining
manufacturers. Refuelings are done with the plant shutdown.
Reproduced by permission The Pressurized Water Reactor (PWR) has
3 separate cooling systems. Only 1