Kana tichitaura nezvekusvibiswa kwemhepo, isu tinowanzo funga nezvemhepo iri kunze, asi nevanhu vanopedza nguva isati yamboonekwa vari mumba, hapasati pave neimwe nzira yakakodzera yekufunga nezve hukama pakati pehutano uye indoor air quality (IAQ).
COVID-19 inopararira zvakanyanya pakati pevanhu vari padyo nepedyo.Kana uri mukati memba, kune kushomeka kwemhepo yekuparadzira uye kunyungudutsa hutachiona hwehutachiona kana hwaburitswa, saka njodzi yekupararira kweCCIDID-19 kune mumwe munhu ari padyo yakakwira kupfuura kuve panze.
COVID-19 isati yasvika, kune kushomeka kwakasimba kugadzirisa kukosha kweIAQ munzvimbo dzeveruzhinji semabhaisikopo, maraibhurari, zvikoro, nzvimbo yekudyira, hotera, nezvimwe. Zvikoro zviri pamberi pedenda iri.Kupinza mhepo kusina kunaka mukati mezvikoro kwatekeshera zvakanyanya, kunyanya muzvivakwa zvekare.
Gumiguru 9, 2020, AHRI yakatanga mushandirapamwe wedhijitari, wakanangana nekubatsira masisitimu ezvikoro munyika yose kuvandudza kunaka kwemhepo yemukati senzira yekuita kuti zvikoro zvive zvakachengeteka.
Inoisa mberi nzira shanu dzekubatsira vatariri vezvikoro kana vadzidzisi kugadzira kana kusimudzira yakavimbika chikoro HVAC system.
1. Kuchengeta masevhisi kubva kune ane hunyanzvi uye akasimbiswa HVAC anopa
Sekureva kweASHARE, kune yakakura uye yakaoma HVAC sisitimu seyakavakwa muzvikoro, inofanirwa kuchengetedza masevhisi kubva kune ane hunyanzvi dhizaini, kana ane certified yekupa mupi, kana anoyedzwa anoyedzwa, kugadzirisa uye kuenzanisa mupi webasa.Pamusoro pezvo, matekinoroji anoshandirwa nemakambani aya anofanirwa kupihwa zvitupa neNATE (North American Technician Excellence) kuve nechokwadi chekuti vakadzidziswa zvakanyanya, vakaedzwa, uye vane hunyanzvi mumunda weHVAC.
2. Kufefetedza
Sezvo mazhinji emhepo maconditioner asingapi chero mweya mutsva, asi pachinzvimbo akatenderedza mhepo yemukati uye kutonhora pasi tembiricha.Nekudaro, kuderedzwa kwezvinosvibisa, kusanganisira zvinotapukira aerosols, nekunze kwemhepo kufefetedza chinhu chakakosha IAQ zano muASHRAE Chiyero 62.1.Ongororo yakaratidza kuti kunyangwe mazinga mashoma ekunze kwemhepo yekufema anogona kuderedza kutapurirana kwefuru kusvika pamwero inowanzobatanidzwa ne50- kusvika 60-percent yeroji yekudzivirira, zvichiita kuti utachiona hushoma.
3.Kuvandudza mafirita
Izwi rinoshandiswa kurondedzera mashandiro emuchina wekusefa ndeyeMERV (Minimum Efficiency Reporting Value), iyo yakakwirira yeMERV giredhi, iyo yakakwirira kusefa kunyatsoita.ASHRAE yakakurudzira kuti masisitimu eHVAC kuchikoro atore kushanda kwesefa ingangoita MERV 13 uye zvingangoita MERV14 kudzikamisa kutapurirana kweaerosols.Asi pari zvino, mazhinji eHVAC masisitimu anongoshongedzerwa neMERV 6-8, mafirita epamusoro anoda kudzvanywa kwemhepo kutyaira kana kumanikidza mweya kuburikidza nesefa, saka kutarisirwa kunofanirwa kutorwa pakuwedzera kusefa kwekuita muHVAC system kuratidza kuti yeHVAC system inokwana kugarisa mafirita ari nani pasina kukanganisa zvakanyanya kugona kweiyo sisitimu kuchengetedza inodiwa yemukati tembiricha uye hunyoro mamiriro uye nzvimbo yekumanikidza hukama.Nyanzvi inokwanisa yeHVAC ine maturusi ekuona yakanyanya kunaka MERV sefa kune yega system.
4.UV chiedza kurapwa
Iyo ultraviolet germicidal irradiation (UVGI) ndiko kushandisa UV simba kuuraya kana kumisa hutachiona, bhakitiriya, uye fungal marudzi.Iyo electromagnetic mwaranzi yeUV ine wavelength ipfupi pane yechiedza chinooneka.
Muna 1936, Hart akabudirira kushandisa UVGI kuuraya utachiona hwemhepo muDuke University chipatara chekushandisa mukamuri nekuratidza kuderedzwa kweronda rekuvhiya rinotapukira.
Chidzidzo chakakosha panguva yechirwere chegwirikwiti cha1941-1942 chakaratidza kuderera kukuru kwehutachiona pakati pevana vechikoro chePhiladelphia mumakirasi umo UVGI system yakaiswa, zvichienzaniswa nekudzora makirasi asina UVGI.
UV disinfection masisitimu eHVAC anoenderana neyakajairwa kusefa, Aaron Engel, yemukati memhepo yemhando yemidziyo inogadzira FRESH-Aire UV akadaro, nekugadzirisa tupukanana tudiki zvekupfuura nepamafirita.
Sezvakataurwa mubepa reAHRI, UV mwenje kurapwa inogona kushandiswa sekuwedzera kune kusefa, kuuraya hutachiona hunopukunyuka.
5. Humidity Control
Zvinoenderana nekuyedza kwakaburitswa paPLOS ONE bepanhau rePamusoro Humidity Inotungamira Kukurasika kweInfectious Influenza Virus kubva kuSimulated Coughs, mhedzisiro inoratidza kuti hutachiona hwakaunganidzwa kwemaminetsi makumi matanhatu hwakachengeta 70.6-77.3% yekutapukira pahunyoro hwehukama ≤23% asi 14.6-22.2 chete. % pahunyoro hwehukama ≥43%.
Mukupedzisa, mavhairasi haashande muzvivako zvine hunyoro huri pakati pe40- ne60-percent.Zvikoro zviri munzvimbo dzinotonhorera zvinotapukirwa nekunyorova kwemazinga akadzikira pane akanyanya, zvichiita kuti humidifiers kuve chinhu chakakosha.
Chero bedzi COVID-19 denda riri munharaunda uye pasina yekudzivirira, hapazombovi nengozi yehutachiona muzvikoro.Mukana wekupararira kwehutachiona uchiripo, nekudaro, matanho ekuderedza anofanirwa kutorwa.
Pamusoro pekudzidzira kushamwaridzana, kufambidzana pakati pevadzidzi nevashandi, kuita hutsanana hwemaoko, kushandisa masks, uye kuchengetedza nharaunda ine hutano, sezvazvinoita muzvikoro zvepasirese, yakanyatsoiswa, yakakwira inoshanda HVAC system, ine mhepo yakakwana, yakabatana neUV mwenje midziyo uye humidity controller yaizonyatsovandudza kugadzikana uye kuchengetedzeka kwechivako, kunatsiridza kudzidza kwevadzidzi.
Vabereki vanoda kuti vana vavo vauye kumba zvakakotsekana uye vari muchimiro chimwe chetecho chomuviri apo vanotakurwa kuzvikoro pakutanga.
Holtop air filtration zvigadzirwa zve anti-virusi:
1.Simba rekudzoreredza mhepo ine HEPA sefa
2.UVC + photocatalysis sefa yemhepo disinfection bhokisi
4.Customized air disinfection solutions
Bibliography of Citations
http://www.ahrinet.org/App_Content/ahri/files/RESOURCES/Anatomy_of_a_Heathy_School.pdf
e ASHRAE COVID-19 Preparedness Resources webhusaiti
https://www.ashrae.org/file%20library/technical%20resources/covid-19/martin.pdf
https://www.cdc.gov/coronavirus/2019-ncov/community/guidance-business-response.html
Nguva yekutumira: Nov-01-2020