Momwe mungawerengere zingatimafakitale mpweya ozizirazofunika mu workshop. Ndi chitukuko cha ukadaulo wopulumutsa mphamvu komanso wokonda zachilengedwe, mafakitale ambiri ndi malo ogwirira ntchito amasankha ngati zida za antchito awo zopangira mpweya wabwino komanso kuzizira. Anthu ambiri amati ndi angati makina ozizirira mpweya omwe amafunikira, ingofunsani katswiri wazamalonda kapena katswiri wazoziziritsa mpweya. M'malo mwake, izi zisanachitike, mutha kuphunziranso kuwerengera zingatimafakitale mpweya oziziramuyenera m'malo anu omwe.

Choyamba, tikhoza kuwerengera motsatira chiphunzitso. Njira yowerengera ndikuyamba kuwerengera katundu woziziritsa, katundu wonyowa ndi voliyumu yoperekera mpweya wa malo omwe amagwiritsidwa ntchito molingana ndi chilinganizo chokhazikika cha mpweya wozizira, ndiyeno kuwerengera kuchuluka kwa kuzizira komwe makina oziziritsira mpweya angapereke, kuti asankhe. kupulumutsa mphamvu ndi kuteteza chilengedwe. Pakuti chiwerengero ndi chitsanzo cha mpweya ozizira, okwana kuzirala mphamvu yamafakitale mpweya ozizirakuyenera kukhala kokulirapo kuposa kuziziritsa komwe kumafunidwa ndi malo ogwiritsira ntchito, ndipo mphamvu yotsalayo imatha kuonedwa kuti ndi 10%.

Mawerengedwe ongoganiza athunthu kuzirala mphamvu yamafakitale mpweya ozizira:

Kutha kwa kuzizirira kwathunthu S=LρCp{e•(tg-ts)+tn-tg}/3600

mu:

L——Kuchuluka kwa mpweya weniweni wopulumutsa mphamvu komanso woziziritsira zachilengedwe (m3/h)

Ρ——Kuchulukana kwa mpweya pamalo otuluka (kg/m3)

Cp——Kutentha kwapadera kwa mpweya (kJ/kg•K)

E——Kukwanira bwino kwa makina ozizirira mpweya, nthawi zambiri 85%

(Tg-ts)——Kutentha ndi kutentha kwa babu (℃)

(Tn-tg)——Kusiyanitsa kwa kutentha pakati pa mkati ndi kunja (℃)

Khazikitsani △t1=(tg-ts), △t2=(tn-tg), pamene △t1 ndi mtengo wabwino, ndipo △t2 ali ndi makhalidwe abwino ndi oipa.

Chiwerengero chonse cha kuzizirira S=LρCp(e•△t1+△t2), pomwe ρ, Cp, e ndi zokhazikika. Zitha kuwoneka kuti mphamvu yonse yoziziritsa ya mafakitale oziziritsa mpweya komanso mpweya weniweni wa mpweya wozizira, kusiyana pakati pa kutentha kwa babu ndi konyowa, Kusiyana kwa kutentha pakati pa m'nyumba ndi kunja kumakhudzana. Popeza △t1 ndi △t2 ndi zosadziwika bwino, amasintha ndi kusintha kwa kutentha kwa chilengedwe chakunja, choncho njira yozizirira yonse imagwiritsidwa ntchito pofufuza zamtundu, ndipo nthawi zambiri amagwiritsidwa ntchito powerengera kuchuluka.

Kachiwiri, timagwiritsa ntchito zomwe takumana nazo kuwerengera kuchuluka kwa zida zotengera mawonekedwe a XIKOOmafakitale mpweya ozizira. Ndiko kuti, kuchuluka kwa kusintha kwa mpweya kumagwiritsidwa ntchito ngati chizindikiro kuti mudziwe kuchuluka kwa mpweya wozizira wamakampani omwe amafunikira pamalo ena. Iyi ndi njira yomwe imagwiritsidwa ntchito popanga makina oziziritsa mpweya.