Si sax ah u cabbirida qalabka barkadaada ayaa fure u ah xaqiijinta nidaam shaqaynaya.Iibsashada nidaamka shaandhaynta si khaldan u cabbiran waxay u horseedi kartaa arrimo badan oo hoos u dhaca jidka barkadaada.

Marka ugu horeysa, fiiri xajmiga barkadaada dabaasha oo gallon ah.Haddii aadan weligaa tan hore u xisaabin, kaliya noo sheeg cabbirka barkadaada oo leh dherer, ballac, qoto dheer, iyo sidoo kale qaabab, wareegsan, leydi ama oval.

Iyada oo cabbirka barkadda ee gallon, tan xigta waa in la doorto shaandhada cabbirka saxda ah iyo bamka u dhigma.Guud ahaan waxaanu soo jeedinaynaa in 5 saacadood wareeggii shaandhada ee biyaha barkadaadu ay yihiin halbeeg lagu dooranayo nidaamka shaandhada.Laakin iibsashada cabirka shaandhada wax yar ka weyn maaha fikrad xun.Cabbirka shaandhada weyn ayaa noqon kara mid waxtar badan oo ka xoog badan inta dhabta ah ee barkadaadu u baahan tahay.Qaado muunad si aad si cad ugu sharaxdo:

     mugga barkadeena SP5512Bl waa 26.61 mitir cubic, filter taangiga lagu duro 1025 oo leh bamka 450W waa doorasho sax ah.Heerka socodka 1025 shaandhada shaandhada waa 8.5 mitir cubic saacaddii, qaacidadu waa: 26.61 / 8.5 = 3.13 saacadood, waxay ka dhigan tahay inay qaadanayso 3 saacadood oo keliya si loo dhammeeyo wareegga shaandhada barkada leh 1025 filter.Taasi waa kaamil