HTR-10 is a 10 MWt prototype high-temperature gas-cooled, pebble-bed reactor at Tsinghua University in China. Construction began in 1995, achieving its first criticality in December 2000, and was operated in full power condition in January 2003.[1]

Tsinghua 04790004 (8389261478).jpg
Control room of HTR-10 reactor
CountryPeople's Republic of China
Coordinates40°15′26″N 116°08′59″E / 40.257169°N 116.149758°E / 40.257169; 116.149758
Construction began1995
Commission dateJanuary 2003
Owner(s)Tsinghua University
Nuclear power station
Reactor typepebble-bed reactor HTGR
Cooling source
Power generation
Units operational10 MW

Two HTR-PM reactors, scaled up versions of the HTR-10 with 250-MWt capacity, were installed at the Shidao Bay Nuclear Power Plant near the city of Rongcheng in Shandong Province and achieved first criticality in September 2021.


HTR-10 is modeled after the German HTR-MODUL. Like the HTR-MODUL, HTR-10 is claimed to be fundamentally safer,[2] potentially cheaper and more efficient than other nuclear reactor designs.[citation needed] Outlet temperature ranges between 700 and 750 °C (1,300–1,375 °F).[3][4]

HTR-10 is a pebble-bed high-temperature gas reactor utilizing spherical fuel elements with ceramic coated fuel particles. The reactor core has a diameter of 1.8 m, a mean height of 1.97 m and the volume of 5.0 m³, and is surrounded by graphite reflectors. The core is composed of 27,000 fuel elements. The fuel elements use low enriched uranium with a design mean burn up of 80,000 MWd/t. The pressure of the primary helium coolant circuit is 3.0 Mpa.[3]

See alsoEdit


  1. ^ HTR-10, Tsinghua University, 2010
  2. ^ Hu, Shouyin; Wang, Ruipian; Gao, Zuying (2004), "Safety Demonstration Tests On HTR-10", Proceedings of the Conference on High Temperature Reactors, Beijing, China: 1–16, archived from the original on 2011-07-25, retrieved 2010-04-26
  3. ^ a b "The High Temperature Gas Cooled Reactor Test Module Core Physics Benchmarks; from google (htr-10 fuel) result 3" (PDF). 2002.
  4. ^ Key components of second HTR-PM reactor connected WNN, 25 March 2020

External linksEdit

  • Let a Thousand Reactors Bloom article at Wired News.
  • April 2014: presentation given to the IAEA: HTR Progress in China