Iziko loMvelisi weGesi libhekiselele kwisixhobo sokwenza izinto esisetyenziselwa ukuvelisa irhasi, irhasi yamanzi kunye negesi engamanzi angamanzi.Umzimba wesithando somlilo u-cylindrical, igobolondo yangaphandle yenziwe ngeplate yensimbi okanye izitena, ezifakwe ngezitena eziphikisayo, kwaye zixhotyiswe ngezixhobo zokutya, iibhobho zokuqhuma kunye nemibhobho yegesi.Ngokutsho kwesakhiwo, inokwahlulwa ibe yijenereyitha yomatshini, i-generator yesinyathelo, i-generator ene-shaft ejikelezayo kunye ne-generator yezigaba ezimbini.Ngokwenkqubo, inokwahlulwa ibe yibhedi esisigxina okanye ibhedi ye-fluidized gas generator.