Steam Generator for Nuclear Steam Supply System

Primary Inventor: Krishna P. Singh
Contributing Inventor(s): Joseph Rajkumar
Date of Publication: Aug. 27, 2019
Status: Granted
Jurisdiction: US
Equipment Type: SMR
Docket Number: HOL-083

Application Number: 14/910,433
Patent Number: US 10,395,783 B2

Related U.S. Publication Data: Provisional application No. 61/895,267, filed on October 24, 2013

Prior Publication Data: US 2016/0196885 A1

PCT Filed: Oct. 24, 2014
PCT No.: PCT/US2014/062094
PCT Pub. No.: WO 2015/061641 A1
PCT Pub. Date: Apr. 30, 2015

Abstract: A nuclear steam supply system utilizing gravity-driven natural circulation for primary coolant flow through a fluidly interconnected reactor vessel and a steam generating vessel. In one embodiment, the steam generating vessel includes a plurality of vertically stacked heat exchangers operable to convert a secondary coolant from a saturated liquid to superheated steam by utilizing heat gained by the primary coolant from a nuclear fuel core in the reactor vessel. The secondary coolant, may be working fluid associated with a Rankine power cycle turbine-generator set in some embodiments. The steam generating vessel and reactor vessel may each be comprised of vertically elongated shells, which in one embodiment are arranged in lateral adjacent relationship. In one embodiment, the reactor vessel and steam generating vessel are physically discrete self-supporting structures which may be physically located in the same containment vessel.