Nuclear Fuels
What is the name of the 1mm pellets embedded in a graphite fuel pellet?
TRISO Microparticle
What is the maximum temperature that a TRISO fuel pellet can withstand?
1600 °C
Why is China interested in construction of HTGRs specifically?
High oulet temperature for process heat and hydrogen production.
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1
What does RCCS stand for in the HTR-PM?
Reactory Cavity Cooling System
What isotope is used to measure burnup in the fuel?
Caesium-137
Why is helium coolant considered passively safe?
There is no positive coolant void coefficient.
How many nuclear reactors are being built in China right now?
36
What material is the containment made out of in the HTR-PM?
Concrete
How many total TRISO pellets are in the core of the HTR-PM
420,000
How many safety barriers does the HTR-PM have against radionuclide release?
5 (Fuel kernels, particle coatings, fuel-element matrix, primary coolant pressure boundary, and reactor building)
Which year did the HTR-PM first hit criticallity?
2021
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3
400
What is the number of TRISO micropellets in a fuel pellet?
≈10,000
What happens to the power in a control rod withdrawal accident scenario?
Power increases and stabilises at a new equilibrium.
Located in Shandong Province, what is the coastal site home to the HTR-PM, the world's first commercial-scale fourth-generation nuclear power plant.
Shidao Bay
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4
Average core power density in the HTGR?
3 MW/m^3
Name of the method to make UO2 kernels?
Thanks to the core's low power density and the immense heat capacity of the graphite structures, it takes exactly _____ many hours for the HTR-PM to reach its maximum core temperature during a Depressurized Loss of Forced Cooling (DLOFC) accident.
26 Hours
How many 1000 MW NPPs can China construct the main equipment for through their supply chain?
10(!)
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5
Within the HTR-PM spent fuel storage system, how many spent fuel elements can be stored inside one of the cannisters.
Up to 40,000 spent fuel elements can be housed.