Reddit Reddit reviews Fast Spectrum Reactors

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Nuclear Engineering
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Energy Production & Extraction
Fast Spectrum Reactors
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1 Reddit comment about Fast Spectrum Reactors:

u/tt23 ยท 2 pointsr/nuclear

They are passively safe as long as they are rather small, EBR-II was 60MWt. Small reactors are expensive. Large metal cooled FRs have positive void coefficient, and need a lot of safety gear.

SFRs need more unique equipment since it has two heat transfer fluids (i.e. sodium and water pumps), double-walled HXes, 3 loops instead of 2, more complicated reactor vessel, etc.

From: http://www.amazon.com/Fast-Spectrum-Reactors-Alan-Waltar/dp/1441995714
>The cost increment over the LWR has generally been assumed to range between 10 and 25% for mature plants.