Ukuvala inzala kukubeka imveliso kwikhabhathi yokuvala inzala.Umphunga wobushushu obuphezulu ukhupha ngokukhawuleza iinkwenkwezi zobushushu, nto leyo ebangela ukuba iprotein yebhaktiriya ijiye kwaye idenature ukufezekisa injongo yokuvala inzala.Uphawu lokuvala inzalo yomphunga kukungena ngamandla.Iiprotheyini kunye ne-protoplasmic colloids i-denatured kwaye idibene phantsi kweemeko ezishushu kunye nezifumileyo.Inkqubo ye-enzyme itshatyalaliswa ngokulula.Umphunga ungena kwiiseli kwaye ujiya emanzini, onokukhulula ubushushu obunokubakho ukunyusa ubushushu kunye nokwandisa amandla okubulala.
Iimpawu zezixhobo ze-Steam generator: ubushushu obuphezulu kunye nexesha elifutshane lokuvala inzala.Ukusebenzisa ujikelezo lwamanzi ukwenza inzala, amanzi kwitanki yokuvala inzala afudunyezwa kubushushu obufunekayo ukuze kubulawe inzala kwangaphambili, ngaloo ndlela kucuthwe ixesha lokuvala inzala kunye nokuphucula ukusebenza kakuhle.Gcina amandla kwaye wandise imveliso.Indlela yokusebenza esetyenziswa kwinkqubo yokuvala inzala inokuphinda isetyenziswe, ukonga amandla, ixesha kunye nokusetyenziswa kwabasebenzi kunye nezixhobo eziphathekayo, kunye nokunciphisa iindleko zokuvelisa.Ngexesha lokwenziwa inzala, iitanki ezimbini zisetyenziswa ngokutshintshanayo njengeitanki zokuvala inzala, nto leyo eyandisa imveliso ngaxeshanye.Kwiimveliso zokupakisha eziguquguqukayo, ngakumbi ukupakishwa okukhulu, isantya sokungena kobushushu siyakhawuleza kwaye isiphumo sokuvala inzala silungile.