Designs / dsn-dhr400
Yanlong DHR-400
CNNC pool-type low-temperature heating reactor, rated at 400 MW thermal in Qian Tianlin’s CET2022 presentation. The presentation explicitly includes DHR-400 among small modular reactor heating demonstrations. It describes a Liaoyuan proposal with 2022 first-concrete and 2024 operation targets; these are historical targets, not achieved milestones. Electrical generation and present commercial availability are unverified.
Catalogue identity snapshot: 2022 (CET2022 presentation; current availability unverified). Later technical descriptions, where recorded, are dated separately below. Source review does not establish current availability or a deployment.
- Class
- SMR
- Technology
- Other
- Coolant
- light water
- Spectrum
- unknown
- Developer / vendor(s) as of 2022
- China National Nuclear Corporation
- Module electrical
- thermal only (no MWe)
- Module thermal
- 400 MWth (nameplate; basis unspecified)
- Fuel form
- UO2 pellet / 17x17 square
- Inclusion basis
- smr_by_design_class
- Confidence
- medium
- Last verified
- 2026-10-13
Tracked deployment projects
- Liaoyuan DHR-400 heating demonstration proposal — Announced · China
Design sources
- Qian Tianlin: Strategic Application of Small Modular Reactor in China’s Energy Development (CET2022) (company_primary, accessed 2026-10-13)
- CNNC: DHR-400 (Yanlong) heating reactor (company_primary, published 22 Nov 2019, accessed 2026-10-13)
- IAEA 2020 SMR book: HTR-10 technical table (iaea_or_nea, accessed 2026-10-08)