Primary Inventor: Krishna P. Singh
Contributing Inventor(s): Joseph Rajkumar
Date of Publication: July 7, 2016
Assignee: Holtec International, Inc.
Equipment Type: SMR
Docket Number: HOL-083
Publication Number: US 2016/0196885 A1
Application Number: 14/910,433
Related U.S. Publication Data: Provisional application No. 61/895,267, filed on October 24, 2013
PCT Filed: Oct. 24, 2014
PCT No: PCT/US2014/062094
PCT Pub No.: WO 2015/061641 A1
European Patent No.: EP 3 061 099 B1
Date: Oct. 24, 2014
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.