Component Cooling Water System for Nuclear Power Plant

Primary Inventor: Krishna P. Singh
Contributing Inventor(s): Joseph Rajkumar
Date of Publication: February 15, 2018
Status: Published
Jurisdiction: US
Equipment Type: CCW, SMR
Docket Number: HOL-070
Application Number: 15/729,376
Publication Number: US 2018/0047469 A1

PCT Filed: August 21, 2013
PCT Number:PCT/US2013/056023
PCT Publication Number: WO 2014/031767 A2
PCT Publication Date: February 24, 2014

Prior Publication Data: US 2015/0170772 A1 on June 18, 2015

Related U.S. Publication DataRelated US Publication Data: Application No. 14/423,149, previously published as US 2015/0170772 A1, and now Patent No. US 9,786,394 B2.

Abstract: A component cooling water system for a nuclear power plant. In one embodiment, the system includes an inner containment vessel housing a nuclear reactor and an outer containment enclosure structure. An annular water reservoir is formed between the containment vessel and containment enclosure structure which provides a heat sink for dissipating thermal energy. A shell-less heat exchanger is provided having an exposed tube bundle immersed in water held within the annular water reservoir. Component cooling water from the plant flows through the tube bundle and is cooled by transferring heat to the annular water reservoir. In one non-limiting embodiment, the tube bundle may be U-shaped.