TsimTsev kawm ntawv qib thiab universities

Yuav ua li cas peb paub hais txog carbon dioxide?

Carbon dioxide (CO 2) - ib tug roj nrog ib tug nyuam qhuav perceptible qaub saj, muaj tej nuj nqis xim tsis tsw. Nws concentration nyob rau hauv lub ntuj kaaj quas lug ntawm lub ntiaj teb yog nyob rau nruab nrab txog 0,04%. Nyob rau hauv ib tes, kom muaj lub neej nws kiag li unsuitable. Thiab nyob rau hauv lwm yam - tag nrho cov nroj tsuag tsuas xav tau tuag tsis muaj carbon dioxide, txij li thaum nws yog tus "qhov chaw ntawm lub hwj chim" rau cov nroj tsuag. Tsis tas li ntawd, rau lub ntiaj teb CO2 nws yog ib co zoo ntawm daim pam. Yog hais tias cov cua nyob rau hauv muaj no gas, peb ntiaj chaw yuav muaj ntau yam txias thiab lub rains yuav tsum yuav luag nkaus.

"Pam ntiaj teb»

Tsim kom muaj cov pa roj carbon dioxide (carbon dioxide, CO 2) yog lub txiaj ntsim ntawm kev twb kev txuas ntawm ob ntawm nws cov Cheebtsam: oxygen thiab carbon. Qhov no gas yog tsim qhov txhia chaw nyob qhov twg muaj ib tug burning thee los yog hydrocarbon tebchaw. Nws kuj tso thaum lub sij hawm fermentation ntawm dej thiab raws li ib tug cov khoom ntawm tsiaj thiab tib neeg kev ua pa. Rau hnub tim, lub thaj chaw ntawm cov pa roj carbon dioxide zoo kawm. Nws yog lub npe hu hais tias qhov no gas yog hnyav dua huab cua thiab tsis muaj kob. Thaum ua ke nrog cov dej, nws cov ntaub ntawv carbonic acid, uas yog dav siv nyob rau hauv tag nrho cov hom ntawm si dej haus cawv.

Yog vim li cas zaum feem ntau hais tias tus CO 2 - ib tug ntaub ntawm peb ntiaj chaw? Qhov tseeb hais tias cov pa roj carbon dioxide kis dawb do los rau peb los ntawm qhov chaw ultraviolet rays thiab qhia infrared tawg tawm txim liab los ntawm lub ntiaj teb. Yog li ntawd, cia li disappearance ntawm cov roj los ntawm cov cua feem ntau yuav muaj kev cuam tshuam climates. Txawm li cas los, qhov kwv yees ntawm tej kev huam yuaj yog suab pes tsawg, vim lub combustion ntawm ntoo, natural gas, thee thiab roj maj tsub kom lub concentration ntawm cov pa roj carbon dioxide nyob rau hauv cov cua. Thiab tam sim no ntshai tsis yog li ntawd ntau npaum li cas huab cua txias, raws li qhov loj ntawm melting ice nyob rau tug thiab nce nyob rau hauv lub theem ntawm cov dej hiav txwv ...

cov nab kuab qhuav

Nyob rau hauv lub kua hauv lub xeev rau cov pa roj yog muab cia rau hauv thooj voos kheej kheej rau ntawm kev kub siab (txog 70 atm). Yog hais tias koj qhib lub valve ntawm lub steel txog ntsha tawm ntawm lub qhov pib mus ua txhaum tawm ... daus. Yuav ua li cas hom ntawm txuj ci tseem ceeb? Qhov tseeb yog piav heev tsuas. Thaum lub sij hawm compression cov pa roj carbon dioxide noj ua hauj lwm, uas nyob rau hauv qhov ntau yog tshuam tsawg tshaj li uas tsim nyog rau nws cov expansion. Pab kom txawm peem rau cov tsis muaj peev xwm tshwm sim CO 2 yog hnub tuag thiab hloov mus rau hauv ib tug "nab kuab qhuav". Raws li tus piv nrog ib tug pa dej khov nws muaj ib tug xov tooj ntawm cov teeb meem loj zoo: firstly, nws evaporation tshwm sim kiag li tsis muaj tsim ntawm residues. Thiab ob, lub "txias hwj chim" cov nab kuab qhuav rau ib unit qhov ceeb thawj ob zaug.

daim ntawv thov

Carbon dioxide yog feem ntau siv raws li ib tug inert nruab nrab nyob rau hauv lub vuam hlau. Txawm li cas los, thaum muaj kev kub kub, decomposition muaj tshwm sim nrog qhov kev tso tawm ntawm nws oxidizing hlau oxygen. Yog li ntawd, lub vuam hlau ntxiv tsuag, xws li silicon thiab manganese. Carbon dioxide nyob rau hauv kaus poom uas feem ntau siv nyob rau hauv pneumatic phom thiab Aviamodelirovaniye. Cov kua roj yog siv raws li ib tug tua hluav taws rau cov dej qab zib thiab kua txiv qaub. Tsis tas li ntawd, CO2 Carbon dioxide kuj yog siv raws li ib tug khoom noj khoom haus additive (E290) code. Thiab raws li peb paub txhais li cas rau loosening lub khob noom cookie. Dhau li ntawd, cov khoom carbon dioxide yog siv lug rau khaws cia zaub mov.

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