Abstract

The next-generation nuclear plant (NGNP) demonstration project forms the basis for an entirely new generation of advanced nuclear plants capable of meeting the emerging need for greenhouse gas-free process heat and electricity. The NGNP is based on very high temperature gas-cooled reactor (VHTR) technology. For more than a decade, the Generation IV International Forum (GIF) has led international collaborative efforts to develop next-generation nuclear energy systems that can help meet the world’s future energy needs. The chapter discusses the very high temperature reactors (VHTRs), molten salt reactors (MSRs), sodium-cooled fast reactors (SFRs), supercritical water-cooled reactors (SCWR), gas-cooled fast reactors (GFRs), and lead-cooled fast reactors (LFRs). Small modular reactors (SMRs) are also considered in detail, including Natrium technology. Advanced Reactor Concepts are studied, which use liquid salt technology as a primary coolant for fluoride salt-cooled high temperature reactors (FHRs), and coated particle fuels similar to high temperature gas-cooled reactors.

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