08-13-0131 - Lead Cooled Fast Reactor

The lead-cooled fast reactor is a nuclear reactor design that features a fast neutron spectrum and molten lead or lead-bismuth eutectic coolant. Molten lead or lead-bismuth eutectic can be used as the primary coolant because lead and bismuth have low neutron absorption and relatively low melting points. Neutrons are slowed less by interaction with these heavy nuclei (thus not being neutron moderators) and therefore, help make this type of reactor a fast-neutron reactor. The coolant does, however, serve as a neutron reflector, returning some escaping neutrons to the core. Fuel designs being explored for this reactor scheme include fertile uranium as a metal, metal oxide or metal nitride.^[1] Smaller capacity lead-cooled fast reactors (such as SSTAR) can be cooled by natural convection, while larger designs (such as ELSY^[2]) use forced circulation in normal power operation, but with natural circulation emergency cooling. The reactor outlet coolant temperature is typically in the range of 500 to 600 °C, possibly ranging over 800 °C with advanced materials for later designs. Temperatures higher than 800 °C are high enough to support thermochemical production of hydrogen through the sulfur-iodine cycle.

https://en.wikipedia.org/wiki/Lead-cooled_fast_reactor

Note. a nice design by USA NAC DOM America standard CL1=L5 (e.g. sharon/susan/shanon/etc. petersen, norway, etc.) expires by 1-10 years (component/composition/etc.; mechanical frame); needs repairs biyearly (run little build slow stabilize); needs maintenance twice a day to three times a day (e.g. five times a day, etc.); needs emergency 24/7; needs large distance from life. not safe in global changing environment w/ USA-etc., not safe in wartimes, not safe with technology advancement, not safe with amnestic drug in hand of USA (e.g. Sharon/Susan/Shannon Petersen HIV-canc patient, chaney psycho italian, grayden brown neander nord, chris walsh, siboan wade toxoplasmosis/HIV-canc patient, et al., etc.). single use machinery. May safe or useful disposal. 

Note 2. pref non motive parts; electromagnetic motion, electromagnetics, particle motion, small state change, etc. (few particles; max particle capacity exist). usually equipment is buried or vaulted, etc. (underground). prefer small single system, little energy. smaller equipment. 

Note 3. Extraordinarily advanced, intelligent eng/etc. build mechanical engine.

Note 4. Alternative options nuclear env or energy or etc. exist (e.g. solar, ice, solar pond, sand, force balancing, etc.); however, may not be effective to support large scale operations in times of adversity.

Note 5. USA NAC DOM/USA/etc. operations/signals/nuclears/etc. cannot be permitted to interfere with reactor and engine processes (including planes, etc.). 

Note 6. Explosion in a nitrogenous fertiliser plant 21 September 1921 Oppau – [Rhénanie] Germany

The facility built in 1911 over 8 hectares started to produce nitrogenous fertilizers two years later. This included mainly a mixture of potassium chloride and ammonium nitrate in equal proportions. The raw material ammonia was produced using the new Haber-Bosch process that uses atmospheric nitrogen. There were 8,000 people working on the site.

During war times, ammonia salts were produced for military use such as constituents for explosives. However after 1918, ammonium salts continued to be produced for civil purposes.

Since 1919, the potassium chloride/ammonium nitrate mixture was gradually replaced by a 50/50 mixture of ammonium sulphate and ammonium nitrate called "mischsaltz". This highly hygroscopic mixture had the disadvantage of clogging together under the pressure of its own weight during storage. It was common practice to loosen the "aggregated” product by firing explosives in holes drilled using a jumper bar in the hardened mass. Until the day of the accident over 20,000 firings were carried out in the "mischsaltz" without any sign of accident being observed.

https://www.aria.developpement-durable.gouv.fr/wp-content/files_mf/FD_14373_oppau_1921_ang.pdf

Note 7. sulfur-iodine cycle, hydrothermal vents, etc.  

Note 8. Radioactivation of water deutron deuteriums deuterions, Deuterated hydrogen/periodic table elements/etc., including particles not on periodic table/assigned to alternate periodic table-classification scheme-etc./various appearances or portrayals of components-presentations-transpirations-appearances-facets-factors-integrals-derivatives-variants-possibilities-etc. (e.g. ions, proton, electron, alpha, beta, gamma; particle ray wave patterned fragment etc. conjectures-theories-etc.)/Contaminants, particle contamination, particle-field paralysis (USA large scale operations of crime)/USA oxygen triangles cascade (bond angle stressing hydrophobization of ozone/oxygen-set/oxygen triangle locking/oxygen lock/etc. or triangulations or etc. or USA-Air-Space-underground-slaves-amcans at Civilian level one north america continent-etc.) and trihydrogen cation universe/tritiums/trihydro cats props and hydrags - rocketry-etc./USA channels and signal overload-usurpation-fractionalizations-etc./USA making trihydrocats/USA global channel-signal-etc. (very large signal)/etc. may consider.

Note 9. Gassing molecular, disintegrations, fissions, etc.; fusions, nitrogen reduction/load/drag/etc. physics circular/spiral/etc.. oxidation-reduction, redox, graphite, etc. 

https://en.wikipedia.org/wiki/Chernobyl_disaster

Note 10. prompt critical reactions. small scale, special underground environment. scale/etc. should not be capable to exceed facility structure integrity, etc..