Kusefa kwathunthu ndi kusefa wachibale

Posankha zosefera zanyumba/zosefera, sizokwanira ngati kungoganizira kuchuluka kwa fyuluta ndi kukula kwa nyumba zosefera, komanso kuyeneranso kuganizira zosefera bwino.

1.Nominal rating:

M'mbuyomu, kuvotera mwadzina kunkagwiritsidwa ntchito kutanthauzira kulondola kwa kusefera kwa fyuluta.

Komabe, kuwerengera mwadzina kumakhala ndi phindu lochepa pogwiritsira ntchito.Kuyesera kumasonyeza kuti tinthu tating'onoting'ono tomwe timakhala ndi mainchesi a 200um tikhoza kudutsa muzitsulo zosefera ndi chiwerengero cha niminal cha 10um nthawi zina. sichinapangidwe kukhala fanizo, kotero chachotsedwa tsopano

2.Mayeso otsimikizika:

Mtheradi wa Mtheradi ndi chizindikiro chodziwika bwino cha zosefera mwatsatanetsatane Kuwerengera kwathunthu kumatanthauza kuti tinthu tating'onoting'ono tating'ono tating'ono tating'ono tating'ono ting'onoting'ono timene timadutsa mu fyuluta, Mu ma microns, ndiye kukula kwake kwa pore kwa fyuluta, ngati Particulate matter ndi yayikulu kuposa kukula kwa pore uku. sichingadutse muzosefera, kotero imasefedwa kuti ichotse.Mtheradi mlingo ndi wolondola kwambiri kuposa mlingo mwadzina ndi bwino zimasonyeza osachepera tinthu kukula kuti fyuluta akhoza kudumpha，Koma particles si onse ozungulira.Ndiosakhazikika bwino,Kuphatikiza apo, dzenje losefera la zinthu zosefera litha kukhala losagwirizana chifukwa cha kachitidwekoMoti pangakhalebe nsomba zazikuluzikulu zomwe zikuthawa muukonde.Chifukwa chake, pali kusiyana kwina pakati pa kuwerengera kwathunthu ndi kugwiritsa ntchito koyenera

3. Beta Mulingo:

Pakalipano, chizindikiro chodziwika bwino cha kusefa kulondola ndi kuchita bwino ndi Beta Rating (mtengo wa Beta). The Beta Rating ndi chiŵerengero cha kusefera, chomwe ndi chiŵerengero cha chiwerengero cha tinthu tating'onoting'ono ta pore zomwe zili mumadzimadzi kumtunda ndi pansi pamtsinje. za zinthu zosefera, Mukazindikira kusefa kwa chinthu chosefera.Choyamba, chiwerengero ndi kukula kwa particles zonyansa za kukula kwinakwake mu voliyumu yamtundu mu mafuta akumtunda a fyuluta amazindikiridwa ndi chida choyezera tinthu.Kenako, kuchuluka ndi kuchuluka kwa tinthu tating'onoting'ono mumafuta akumunsi a chinthu chosefera amayezedwa.Ndiye, chiwerengero cha kumtunda chimagawidwa ndi chiwerengero cha kunsi kwa mtsinje, ndipo chiŵerengero chopezeka ndi chiŵerengero cha kusefera

Mwachitsanzo, pamene kumtunda kwa fyuluta kumapezeka, chiwerengero cha tinthu tating'onoting'ono toposa 5 microns ndi 10. Pambuyo pa kusefa ndi fyuluta, chiwerengero cha particles pamwamba pa ma microns 5 omwe amayezedwa kumunsi ndi 1, ndiye wachibale. kufika pamlingo wolondola wa ma microns 5, chiŵerengero cha kusefera kwa chigawo cha fyuluta ndi 10/1 = 10, cholembedwa kuti β5 = 10. Mwachiwonekere, kuchuluka kwa β mtengo, kumapangitsanso zotsatira zosefera. kulondola kusefa, komanso kuona kusefa chiŵerengero.Kutenga 5 micron particles monga chitsanzo, ngati kumtunda kuyeza particles ndi 1 miliyoni/mL, ndiye lolingana kutsika kuchuluka ndi kusefera zikuwonetsedwa tebulo ili:

Ngati kusefa kwachangu kwa chinthu chosefera kuyimiridwa ndi kuchuluka, njira yosinthira ndi ((β-1)/ β-value) x 100. Mwachitsanzo, patebulo pamwambapa, β-value ndi 20, ndi kutembenuka peresenti. wa kusefa Mwachangu ndi201)/ 20=19/20=0.95,0.95*100=95%

Chifukwa chake, pazinthu zosefera zomwe zili ndi kusefa kolondola kwa ma microns 5, ngati mtengo wa β ndi 10, kusefa ndi 90%, ndi zonyansa zamtundu waukulu kuposa kapena wofanana ndi ma microns 5, 90% imatha kusefedwa. ndikofunikira kudziwa kuti ngakhale beta ingatithandize kumvetsetsa zosefera, ili ndi phindu, koma beta ikuwonetsa kusefera moyenera kungakhale kosiyana pang'ono ndi kusintha kwakuyenda ndi kutentha, kusankha zida zosefera, ziyenera kulabadira. kugwiritsa ntchito kutentha, mlingo weniweni otaya, zinthu kusefa zotsatira za mamasukidwe akayendedwe ndi zinthu zokhudzana

Kuphatikiza apo, mtengo wa β sungathe kufotokozera momwe fyulutayo imanyamula, yomwe ikugwiritsidwa ntchito, ngati mphamvu yonyamulira yoyipa ndi yaying'ono, ndipo zowononga zomwe zili muzinthuzo ndizolemetsa, zosefera zidzatsekedwa posachedwa, zomwe zimakhudza momwe mungagwiritsire ntchito.Chifukwa chake, mukagula, muyeneranso kudziwa zonyamula zoipitsamphamvu ya sefa