Control rod drive mechanism with heat pipe cooling

Lobscheid, Christian; Noel, Derek

Title: Control rod drive mechanism with heat pipe cooling

Patent · Tue Jun 07 00:00:00 EDT 2022

OSTI ID:1893010

Lobscheid, Christian; Noel, Derek

A representative cooling system for a nuclear reactor control rod drive mechanism (CRDM) includes an evaporation section located within or next to the CRDM and a condensation section fluidly coupled to the evaporation section. The cooling system includes a set of heat fins coupled to drive coils in the CRDM and heat pipes that extend through the drive coils and heat fins. A fluid evaporates while in the evaporation section of the heat pipes from heat generated by the CRDM and moves out of the evaporation section into the condensation section in the heat fins. The fluid cools and condensates while in the condensation section, recirculating back into the evaporation section. This passive natural circulation cooling system reduces or eliminates the number of water hoses, piping, and other water pumping equipment typically used for cooling a CRDM thereby increasing nuclear reactor reliability and simplifying nuclear reactor operation and maintenance.

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Research Organization:: NuScale Power, LLC, Corvallis, OR (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: NE0000633

Assignee:: NuScale Power, LLC (Corvallis, OR)

Patent Number(s):: 11,355,252

Application Number:: 16/229,554

OSTI ID:: 1893010

Resource Relation:: Patent File Date: 12/21/2018

Country of Publication:: United States

Language:: English

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