Bawul ɗin faɗaɗa wani muhimmin sashi ne na tsarin firiji, yawanci ana shigar da shi tsakanin silinda na ajiyar ruwa da mai fitar da iska.Bawul ɗin faɗaɗa yana sa ruwa mai sanyi a matsakaicin zafin jiki kuma babban matsa lamba ya zama rigar tururi a ƙananan zafin jiki da ƙarancin matsa lamba ta hanyar maƙarƙashiya, sa'an nan kuma refrigerant yana ɗaukar zafi a cikin evaporator don cimma tasirin refrigeration.Bawul ɗin faɗaɗawa yana sarrafa kwararar bawul ta hanyar canjin zafi mai zafi a ƙarshen injin don hana rashin amfani da yankin evaporator da kuma yanayin bugun silinda.
A sauƙaƙe, bawul ɗin faɗaɗa ya ƙunshi jiki, fakitin jin zafin jiki da bututun ma'auni
Kyakkyawan yanayin aiki na bawul ɗin faɗaɗa ya kamata ya canza buɗewa a cikin ainihin lokacin da sarrafa ƙimar kwarara tare da canji na nauyin evaporator.Amma a gaskiya, saboda hysteresis na zafi canja wuri a cikin zazzabi ji ambulaf, mayar da martani na fadada bawul ne ko da yaushe rabin bugun jinkiri.Idan muka zana zane-zane na lokaci-lokaci na bawul ɗin faɗaɗawa, za mu ga cewa ba mai santsi ba ne, amma layin igiya.Ana nuna ingancin bawul ɗin haɓakawa a cikin girman raƙuman ruwa.Girman girman girman, da sannu a hankali amsawar bawul kuma mafi muni da inganci
