Ganuwar sanyi da zafi mai zafi shine musayar zafi mai gudana, kuma bututun yana cike da firiji da iska a waje.Babban jikin bututu shine canja wurin zafi na lokaci.Gabaɗaya ana shirya bututun a cikin siffar maciji tare da bututu masu yawa, kuma an raba fins zuwa tsari guda ɗaya, biyu ko jeri da yawa.
Ana amfani da irin wannan nau'in musayar zafi sosai a fannonin masana'antu kamar masana'antar petrochemical, jirgin sama, motoci, injin wuta, abinci, zurfin zafin jiki da ƙarancin zafi, makamashin atomic da sararin samaniya.Misali, superheaters, economizers, air preheaters, condensers, deaerators, feedwater heaters, sanyaya hasumiyai, da dai sauransu. a cikin tukunyar jirgi thermal tsarin;murhu mai zafi mai zafi, iska ko gas preheaters a cikin tsarin smelting na ƙarfe, Sharar gida mai zafi, da sauransu;evaporators, condensers, regenerators a cikin firiji da ƙananan zafin jiki tsarin;dumama da sanyaya kayan aiki yadu amfani a petrochemical masana'antu, sugar ruwa evaporators da ɓangaren litattafan almara evaporators a cikin sukari masana'antu da takarda masana'antu, Waɗannan su ne da yawa misalai na zafi musayar aikace-aikace.
Saboda da iyaka tanadi na kwal, man fetur, da albarkatun iskar gas a duniya, da kuma karancin makamashi, duk kasashe sun himmatu ga ci gaban sabon makamashi kafofin, da kuma rayayye gudanar da preheating dawo da makamashi ceto aikin, don haka aikace-aikace na zafi. masu musayar wuta da ci gaban makamashi Yana da alaƙa da tanadi.A cikin wannan aikin, ma'aunin zafi yana taka muhimmiyar rawa, kuma aikinsa kai tsaye yana rinjayar ingancin amfani da makamashi.A matsayin na'ura mai inganci don amfani da makamashi da kiyaye makamashi, masu musayar zafi kuma suna taka muhimmiyar rawa wajen amfani da sharar zafi, amfani da makamashin nukiliya, amfani da makamashin hasken rana, da kuma amfani da makamashin kasa.
