Xa kufikwa kwiindawo ezinkulu zoshishino,Iifeni zeHigh Volume Low Speed ​​(HVLS)ziyindlela ethandwayo yokubonelela ngokujikeleza komoya okusebenzayo kunye nokupholisa. Enye yezinto eziphambili ekuqinisekiseni ukusebenza kakuhle kwefeni ye-HVLS yireyithingi yayo ye-CFM (Cubic Feet per Minute), elinganisa umthamo womoya ifeni enokuyihambisa ngomzuzu. Ukuqonda indlela yokubala i-CFM yefeni ye-HVLS kubalulekile ukuqinisekisa ukuba ilingana ngokufanelekileyo nendawo ekujoliswe kuyo.

Ukubala i-CFM yefeni ye-HVLS, ungasebenzisa le fomyula:CFM = (Ummandla wendawo x Utshintsho loMoya ngeYure) / 60. Indawo yendawoyi-square foot iyonke yendawo eza kuphakelwa yifeni, kwayeutshintsho lomoya ngeyurelinani lamaxesha ofuna umoya okwindawo leyo utshintshwe ngokupheleleyo ngumoya omtsha kwiyure enye. Wakuba unala maxabiso, ungawafaka kwifomula ukuze ufumane i-CFM efunekayo kuloo ndawo.

BALA I-CFM YOMLANDELI

Xa kufikwa kwi-Apogee CFM, ibhekisa kwi-CFM ephezulu enokufunyanwa yifeni ye-HVLS kwisantya sayo esiphezulu. Eli xabiso libalulekile ekuqondeni amandla efeni kunye nokugqiba ukuba ingahlangabezana ngokufanelekileyo neemfuno zomoya kunye nokupholisa kwindawo ethile. Kubalulekile ukuqwalasela i-Apogee CFM xa ukhetha ifeni ye-HVLS ukuqinisekisa ukuba inokuhambisa umoya ofunekayo kwisicelo esicetywayo.

Ukongeza kwifomula yokubala i-CFM, kubalulekile ukuqwalasela nezinye izinto ezinokubangela ukubaimpembelelo ekusebenzeniyefeni ye-HVLS, efanauyilo lweblade yefeni, ukusebenza kakuhle kwenjini, kunye noyilo lwendawo.Ukufakwa kunye nokubekwa kakuhle kwefeni kunokuchaphazela nokukwazi kwayo ukuhambisa umoya ngokufanelekileyo kuyo yonke indawo.

Ukuqukumbela, ukuqonda indlela yokubalaI-CFM yefeni ye-HVLSKubalulekile ukuqinisekisa ukuba ilinganiswe kakuhle ngokwesicelo esicetywayo.Ukuqwalasela i-Apogee CFM kunye nezinye izinto ezinokuchaphazela ukusebenza kwefeni kuya kunceda ekukhetheni ifeni ye-HVLS efanelekileyo yokujikeleza komoya kunye nokupholisa kwiindawo ezinkulu zoshishino.