Westinghouse Electric Company LLC

Matthew J Memmott

Alexander W Harkness

William Edward Cummins

Edward Jean Lahoda

Mario D Carelli

Joel R Johnson

Johan M Cronje

Matthew C Smith

System for emergency cooling of a nuclear reactor. The system uses passive convection cooling and endothermic reactant cooling.

Emergency heat removal in a light water nuclear reactor by using a passive endothermic reaction cooling system

A combined makeup tank and passive residual heat removal system that places a tube and shell heat exchanger within the core makeup tank. An intake to the tube side of the heat exchanger is connected to the hot leg of the reactor core and the outlet of the tube side is connected to the cold leg of the reactor core. The shell side of the heat exchanger is connected to a separate heat sink through a second heat exchanger.

Combined core makeup tank and heat removal system for a small modular pressurized water reactor

An integral pressurized water reactor that combines all of the components typically associated with a nuclear steam supply system, such as the steam generator, reactor coolant pumps, pressurizer and the reactor, into a single reactor pressure vessel. The reactor pressure vessel is itself enclosed in a containment pressure vessel that also houses a number of safety systems, such as the core make-up tanks, the primary side of residual heat removal heat exchangers, an automatic depressurization system and a recirculation system that enables continuous core cooling through natural circulation over an extended period of time. Actuation of the passive systems is done by single actuation of valves, powered from redundant batteries.

Small modular reactor safety systems

A nuclear reactor having a liquid metal or molten salt coolant in a riser space', has a cylindrical containment vesselwith a reactor vessel&#x2032;, at least two lobes, preferably three to nine lobes, each lobeinterconnected with the other lobe(s) and each containing a fast reactor core,&#x2033; and

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Pittsburgh, PA, United States of America

Matthew J Memmott