Chifukwa chakukula kwachangu kwa misewu yayikulu, kufunikira kwa phula kumawonjezeka, ndipo phula lachikwama limagwiritsidwa ntchito kwambiri pamayendedwe ake osavuta, kusungirako kosavuta, komanso kutsika mtengo kwapang'onopang'ono, komwe kumakhala koyenera kwambiri kuyenda mtunda wautali. Phulalo limayikidwa m'matumba apulasitiki otayika, koma palibe zida zochotsera thumba. Nyumba zambiri zomangira zimawiritsa phula la thumba mumphika, lomwe ndi losatetezeka ndipo limawononga chilengedwe. Komanso, liwiro la processing limachedwa, kuchuluka kwa processing ndi kochepa, ndi ntchito Mphamvu ndi yochuluka, ndipo ili kutali kwambiri ndi kuchuluka kwa phula lamadzimadzi lofunikira pamakina akuluakulu opangira misewu. phula thumba kusungunula makina angapereke mayunitsi zomangamanga ndi mkulu digiri ya makina ndi zokha, mofulumira processing liwiro, palibe kuipitsa chilengedwe, otetezeka ndi odalirika.

Makina osungunula phula la phula amapangidwa makamaka ndi bokosi lochotsa thumba, chipinda choyaka moto ndi malasha, payipi yotenthetsera mpweya, kutentha kwapamwamba, doko lolimba la phula, makina odulira thumba, agitator, makina osungunula thumba, bokosi losefera ndi makina owongolera magetsi. Bokosilo limagawidwa m'zipinda zitatu, chipinda chimodzi chokhala ndi thumba ndi zipinda ziwiri zopanda thumba, momwe phula limachotsedwamo. Khomo lolimba la phula (lonyamula katundu limanyamula phula lolimba) lili ndi phula komanso ntchito zoteteza mvula. phula lachikwamalo litakwezedwa, thumba loyikamo limadulidwa kuti phulalo lisungunuke. The kutentha conduction makamaka zochokera phula monga sing'anga, ndi kusonkhezera amalimbikitsa convection wa phula ndi timapitiriza ma radiation conduction kutentha. Njira yochotsera thumba imakhala ndi ntchito yotulutsa thumba loyikamo ndikukhetsa phula lomwe likupachikidwa pathumba. Phula losungunuka limalowa m'chipinda chopanda thumba litasefedwa, ndipo limatha kuchotsedwa ndikusungidwa kapena kulowa munjira ina.

phula thumba sungunula makina ali ndi ubwino digiri mkulu wa zimango ndi zokha, mofulumira processing liwiro, lalikulu processing mphamvu, ntchito otetezeka ndi odalirika, ndipo palibe kuipitsa chilengedwe. Itha kugwiritsidwa ntchito kwambiri pomanga misewu yayikulu komanso yamatawuni.