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The HTR-PM is a high-temperature gas-cooled (HTGR) pebble-bed reactor. While the German AVR and THTR-300, operating from 1969 to 1988, were the first pebble-bed reactors and operated at similar temperatures, the HTR-PM is the first such design using modular construction and the second small modular reactor, following Russia's Akademik Lomonosov floating plant in 2019.
A high-temperature gas-cooled reactor (HTGR) is a type of gas-cooled nuclear reactor which uses uranium fuel and graphite moderation to produce very high reactor core output temperatures. [1] All existing HTGR reactors use helium coolant. The reactor core can be either a "prismatic block" (reminiscent of a conventional reactor core) or a ...
Each unit is made of two HTR-PM reactors driving a single 210 MW e steam turbine. The plant also hosts the construction of two 1500 MW e CAP1400 pressurized water reactors ( 36°57′56″N 122°31′12″E / 36.96556°N 122.52000°E / 36.96556; 122.52000 ), a design based on the AP1000 [ 4 ] jointly developed by Westinghouse and ...
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China was the first country to operate a demonstration generation-IV reactor, the HTR-PM in Shidaowan, Shandong, [7] [8] which is a pebble-bed type high-temperature gas-cooled reactor. It was connected to the grid in December 2023, making it the world's first Gen IV reactor to enter commercial operation.
The technology is currently being developed mainly in China who currently operate a 10 MW test reactor of this type. The Chinese are, as of 2015, building a commercial pebble-bed reactor: HTR-PM, with two 100MWe reactors. [2] One achieved a sustained chain reaction (criticality) in Sept 2021. [2]
A Washington, D.C. man has been arrested for threatening flight attendants on a United Airlines plane traveling from Houston to New Jersey. Kedus Yacob Damtew, 38, was charged with one count of ...
It is a conventional helium-cooled, helium-turbine design. In 2021 the Chinese then built a 211 MW e gross unit HTR-PM, which incorporates two 250 MW t reactors. [21] As of 2021, four sites were being considered for a 6-reactor successor, the HTR-PM600. [21] The reactor entered service in December 2023. [22]