Itsika yakajairika kushandisa mhepo inofefetera kuti itonhodze huku mumwaka wekupisa wezhizha.Kurimwa kwemazai kwakanyanya-density, kumhanya kwemhepo muchikwere chehukuinofanira kusvika zvishoma ne3m / s, uye mhepo inomhanya muimba yehuku munzvimbo dzakakwirira-kupisa uye yakakwirira-yakadzika inofanira kusvika kupfuura 4m / s kuitira kuti uwane "mhepo inotonhorera" iri nani.
Izwi rekuti “wind-cooling effect” rinonyanya kureva kumhanya kwemhepo kuderedza kupisa kwehuku.
Kumhanya kwemhepo kungaite zvakadii patembiricha yehuku?
“Maererano neongororo yakaitwa neYunivhesiti yeGeorgia, kumhanya kwemhepo kwakawedzera kubva pa0m/s kuenda pa2.54m/s.Tembiricha yehuku inodzika nekudarika 6°C.”
Kuti ndiwane kumhanya kukuru kwemhepo, ini ndiri tsika yakajairika kugadzira iyochicken housesirin'i, kuderedza kureba kwechikwere chehuku, kana kubva pamusoro pechikwere chehuku padenga rine mativi matatu zvakadzika zvichidzika daro rega rega kuisa chinovhara mhepo kana keteni rekuvharisa mhepo kuderedza nzvimbo yakachinjika yechikwere chehuku kuti mhepo imhanye. mu coop.
Sei uchiita izvi, kunyanya nekuti kumhanya kwemhepo kunoenderana zvakanyanya nenzvimbo yemuchinjikwa-chikamu chechikwere chehuku.
Kuverengera kwekumhanya kwemhepo muhuku yakarebesa inofefetera: kumhanya kwemhepo = vhoriyamu yekufemesa / mhiri-chikamu nzvimbo yehuku.
Zviripachena kubva pane iyi fomula kuti kuwedzera kukurumidza kwemhepo yekombi, kana kuwedzera kufefetedza kwecoop, kureva kuwedzera huwandu hweakaipa anopikisa mafeni, kana kuderedza mhiri-sectional nzvimbo yecoop.
Kuwedzera mafeni kunoreva kuwedzera mitengo, kuwedzera mashandisirwo emagetsi, kuwedzera mari yekugadzirisa, uye nekufamba kwenguva kuwedzera mari yekushandisa kune bhizinesi.
Wobva wawedzera kumhanya kwemhepo kunofanirwa kutariswa kubva pakudzikisa iyo mhiri-chikamu nzvimbo yechikwere chehuku.Pazasi tinonzwisisa shanduko yehuku isati yasvika uye mushure mekuwedzera keteni rekudzivirira mhepo nemaverengero chaiwo.
Semuenzaniso: chikwere chehuku 12m paupamhi, 100m kureba, madziro epadivi echuru akareba 2.4m, pakati pechuru (yepamusoro-soro) 4.8m, iyo coop inoiswa ine 10 50 inch mafeni, simba rekufemesa re fan imwe neimwe pa -50 Pa is 31000m³/h.
Ipapo kumhanya kwemhepo kwechikwere chehuku kunofanirwa kunge kuri: kumhanya kwemhepo = vhoriyamu yemhepo / nzvimbo yepakati-chikamu = 31000 / 3600× 10 / [12× (4.8 + 2.4) / 2] = 86.1/43.2 = 1.99m / s
Kana tikaisa sirin'i kana chidzitiro chemhepo muchikwere chehuku, kuitira kuti kureba kwepamusoro pehuku kana kumucheto kwepazasi kwe drape kubva pasi kuve 3.6m, uye kureba kwemativi maviri ehuku kunoramba kusingachinji, iyo kumhanya kwemhepo ndiko = 31000/3600×10/[12×(3.6+2.4)/2]=86.1/36=2.39m/s
Nokudaro, munyaya yenhamba imwechete yevateveri, nekuderedza nzvimbo yepamuchinjikwa yehuku yehuku inogona kuwedzera kukurumidza kwemhepo pamusana peiyo yepakutanga 0.4m / s, ndiko kuti, kubudirira kwakawedzera ne20%, mhepo yekumhanya shanduko inogadzirwa nemhepo inotonhora mhedzisiro yakasiyanawo, mutsauko uripo pakati pemhepo mbiri yekutonhodza mhedzisiro inoenderana nekupisa kweanenge 2.℃, kana iri tembiricha yakanyanya, musiyano wetembiricha we2℃zvakakwana kukuvadza huku.
Nguva yekutumira: Aug-12-2022
