I-sontmual i-thermal yokudlulisela idlulisela idluliselwa okukhusela izixhobo zombane ngokubeka iliso kubushushu obufunyenwe xa kusenziwa umqhubi. Xa ikho ngoku idlula ixabiso elingaphakathi, ukuthembeka kwe-thermal kuya kuba senza ngokukhawuleza ukunciphisa isekethe kwaye kuthintele ukonakaliswa kwezixhobo ngenxa yokulayisha ngaphezulu.
Ukukhuselwa okugqithisileyo: Xa okwangoku kwisekethe ingaphezulu kwexabiso elinokuhlala linokungakwazi ukwenza izixhobo, ukuthembeka kwe-shirmal kuyakwenza ngokukhawuleza kwaye kunqamle isekethe yokuthintela ukonakaliswa kwezixhobo ngenxa yokulayisha.
Ukukhuselwa kwesekethe emfutshane: Xa kusenzeka isekethe elifutshane kwisekethe, i-shirmal idlulisela ngokukhawuleza, nqamla isekethe kwaye uthintele umonakalo kwizinto ezikwisipha sephakethe esifutshane.
Ukhuseleko lweSigaba seSigaba: kwisekethe yamanqanaba amathathu, ukuba ilahleko yesigaba senzeka, i-thermal idlulisela kwaye iphinde icofe iphakheji yesigaba esilahlekileyo ukuqinisekisa ukusebenza kwesiqhelo kwezixhobo.