<prompt> Bhala okuqhubekayo kwalesi sigaba - Kokubili uphethiloli nokumbozwa kungakhula. Ukumboza kuhlanganisa uphethiloli ukuze kwakheke iphini likaphethiloli futhi kungenziwa kushintshwe ukuma. Kuyinto evamile ukugcwalisa igebe phakathi kukaphethiloli nokumbozwa nge-helium gas ukuvumela ukuxhumana okungcono kokushisa phakathi kukaphethiloli nokumbozwa. Phakathi nokusetshenziswa inani legesi ngaphakathi kwephini likaphethiloli lingakhuphuka ngenxa yokwakheka kwamagesi ayigugu i-krypton ne-xenon ngenqubo yokuhlukaniswa. Uma ingozi yokulahleka kokupholisa i-LOCA isib. iThree Mile Island  <response>: noma i-Reactivity Initiated Accident RIA isib. iChernobyl noma i-SL-1 kwenzeka khona-ke izinga lokushisa lale gesi lingakhuphuka. Njengoba ipini likaphethiloli livalwa ingcindezi yegesi izokwanda PV nRT futhi kungenzeka ukuba i-cladding iphenduke futhi iqhume. Kuye kwaphawulwa ukuthi kokubili ukugqwala nemisebe kungashintsha izakhiwo ze-zirconium alloy evame ukusetshenziswa njenge-cladding, kuyenze ibe brittle. Ngenxa yalokho, ukuhlolwa okusebenzisa amashubhu e-zirconium alloy angashiswa kungaholela ekukhohlisweni. 