Comments by "David Elliott" (@davidelliott5843) on "A Brief History of: The Leningrad 1975 u0026 Chernobyl 1982 Meltdowns (Short Documentary)" video.

“Easy to build and cheap” is good when you’ve designed out the intrinsic hazards. It’s the worst of all worlds when you have an intrinsically dangerous design. It’s even worse when the control rods take minutes to insert and the reactor can runaway in less than a second.
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@P7777-u7r That depends on how you fuel and cool your reactor. The molten salt reactor invented by Alvin Weinburg (in 1960s) is intrinsically safe. There is no internal pressure. Containment is thick concrete. Xenon escapes from the core so cannot poison the reaction. Elements like Iodine 131 and caesium 137 form salts in the fuel. Cannot potentially escape as gasses. The temperature coefficient is highly negative. It cannot overheat because reactivity quickly slows. There is no water or steam inside the core removing the numerous hazards. Hydrogen cannot be generated and voids in the core are not possible. Molten chlorides are less corrosive that highly pressurised hot water. The British Moltex puts the fuel into fuel pins - vented to release fission gasses like xenon. It’s also a fast spectrum so will burn the 95% unused energy remaining in used oxide fuel pins.
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