Ponena za malo akuluakulu a mafakitale,Mafani a High Volume Low Speed ​​(HVLS)Ndi njira yotchuka yoperekera mpweya wabwino komanso woziziritsa. Chimodzi mwazinthu zofunika kwambiri podziwa momwe fan ya HVLS imagwirira ntchito ndi CFM (Cubic Feet per Minute) rating yake, yomwe imayesa kuchuluka kwa mpweya womwe fan imatha kusuntha mu mphindi imodzi. Kumvetsetsa momwe mungawerengere CFM ya fan ya HVLS ndikofunikira kuti muwonetsetse kuti ili ndi kukula koyenera kwa malo omwe ikukonzekera kutumikira.

Kuti muwerengere CFM ya fan ya HVLS, mutha kugwiritsa ntchito fomula iyi:CFM = (Malo a malo x Kusintha kwa Mpweya pa Ola) / 60. Chigawo cha malondi malo onse okwana sikweya imodzi omwe fan idzakhala ikutumikira, ndipokusintha kwa mpweya pa ola limodzindi kuchuluka kwa nthawi zomwe mukufuna kuti mpweya womwe uli m'malo amenewo ulowetsedwe kwathunthu ndi mpweya watsopano mu ola limodzi. Mukakhala ndi mfundo izi, mutha kuziyika mu fomula kuti mudziwe CFM yofunikira pa malowo.

WERENGA CFM YA FAN

Ponena za Apogee CFM, imatanthauza CFM yayikulu kwambiri yomwe fan ya HVLS ingathe kukwaniritsa pa liwiro lake lapamwamba kwambiri. Mtengo uwu ndi wofunikira kuti mumvetsetse luso la fan ndikuwona ngati ingakwaniritse bwino zosowa za mpweya wabwino ndi kuzizira kwa malo enaake. Ndikofunikira kuganizira za Apogee CFM posankha fan ya HVLS kuti muwonetsetse kuti ikhoza kupereka mpweya wofunikira pa ntchito yomwe mukufuna.

Kuwonjezera pa njira yowerengera CFM, ndikofunikiranso kuganizira zinthu zina zomwe zingathezimakhudza magwiridwe antchitoya fan ya HVLS, mongakapangidwe ka tsamba la fan, momwe injini yake imagwirira ntchito, komanso momwe malowo alili.Kukhazikitsa bwino ndi malo a fan kungakhudzenso kuthekera kwake koyendetsa bwino mpweya m'malo onse.

Pomaliza, kumvetsetsa momwe mungawerengereCFM ya fan ya HVLSndikofunikira kwambiri kuti zitsimikizire kuti ndi zazikulu bwino kuti zigwirizane ndi zomwe mukufuna kugwiritsa ntchito.Kuganizira za Apogee CFM ndi zinthu zina zomwe zingakhudze momwe fan imagwirira ntchito kungathandize kusankha fan yoyenera ya HVLS kuti mpweya uziyenda bwino komanso kuti uzizire m'malo akuluakulu amafakitale.