Dej khov

Muaj tseeb koj tau hnov ​​ntawm dej khov qhuav. Nws yog cov pa roj carbon dioxide nyob rau hauv lub xeev khov kho, khov ntawm cov pa taws ntawm qhov kub ntawm -78,5 ° C. Tus yam ntxwv uas ua rau nws tshwj xeeb dua yog tias thaum nws "yaj" nws mus ncaj qha rau lub xeev gaseous yam tsis tau tawm ntawm kev ya raws. Li no, nws muaj npe hu ua dej khov qhuav.

Koj puas xav paub txog nws lub zog thiab qhov siv sib txawv?

Cov yam ntxwv thiab khoom

Dej khov qhuav tau los ntawm cov pa roj uas tsim tawm los ntawm cov khoom lag luam ntawm lwm cov txheej txheem kev lag luam. Cov dej khov qhuav yog tsim hauv cov nroj tsuag sib txuas thiab kev zom cov nyom. Raws li tau hais ua ntej, nws yog hais txog khov carbon dioxideCov. Cov roj no ntawm qhov kub tsis tshua muaj peev xwm yog qhov nyob ruaj khov. Thaum sublimated nws tsis tsim txhua hom kua, dej los yog av noo.

Thaum cov pa roj no sublimates nyob rau hauv ib qho chaw muaj huab cua sov nrog CO2, nws txo qis cov av noo nyob ib puag ncig. Qhov no ua rau cov pa roj no siv tau zoo heev thaum siv los sim khaws cov khoom uas rhiab ntawm ya raws.

Txhua kg ntawm cov dej khov qhuav tsim 136 frigories ntawm lub zog. Cov pa roj yog nyob ntawm qhov kub ntawm -78,5 ° C thiab yauv ib qho ntxiv rau 16 lub frigories, uas ua kom nws tau txais tag nrho ntawm 152 frigories rau txhua qhov hnyav ntawm cov dej khov qhuav.

Qhov zoo ntawm dej khov qhuav hla dej

Hauv qhov hnyav sib npaug, cov dej khov qhuav muaj peev xwm ua kom txias dua 170% ntau dua li dej khov nab kuab. Qhov no yog qhov nthuav dav heev nyob rau hauv chav ua noj chav ua noj, txij li nws muaj peev xwm ua kom txias ntawm cov khoom kub ceev. Raws li qhov ceev ntawm dej khov qhuav yog ntau dua 1,5 Kg / dm3 thiab qhov ceev ntawm dej khov yog sib npaug 0,95 Kg / dm3, nws hloov tawm tias a sib npaug ntim ntawm dej khov siv, dej khov qhuav muaj lub peev xwm txias ntau npaum li 270% piv rau dej khov ua tsoos. Qhov no muaj qhov cuam tshuam zoo rau cov chaw uas cov dej ntim tau dej khov, yog cov dej khov yog qhov kev xaiv zoo tshaj plaws kom tau txais qhov zoo ntawm qhov chaw no.

Kev txawv txav

Dej khov qhuav tsis tsuas yog muaj cov khoom tshwj xeeb zoo li cov tau hais los saum no, tab sis kuj tau suav tias yog cov kab mob bacteriostatic thiab fungistatic tus neeg sawv cev. Thaum sublimation tshwm sim, ib qho chaw huab cua yog tsim los ntawm nws qhov CO2 concentration kom siab heev uas ua haujlwm ntawm cov tshuaj tua kab mob. Yog li ntawd, nws yog ib qho roj zoo heev Txhawm rau kom qeeb ntawm kev loj hlob ntawm cov kab mob, cov pwm thiab cov poov xab thiab tsim kom huv si huv si.

Cov pa roj no muaj peev xwm txav tawm cov pa tawm hauv huab cua, sab hauv thiab ntim khoom, uas pab txhawb kev txhim kho cov roj ntsha zoo ntawm cov chaw uas qee cov khoom lag luam xav tau thiab khaws cia.

Dab tsi yog nws rau?

Dej khov qhuav yog siv rau ntau yam kev kho mob thiab kev coj ua niaj hnub no. Ntawm nws siv peb pom:

• Kev tshawb fawb kho mob thiab kev tshawb fawb: Txhawm rau khaws cov kabmob rau qhov hloov lossis kev kawm, nws raug nquahu kom siv cov dej khov qhuav, txij li nws lub peev xwm txias tub yees ua rau nws nyob zoo. Nws kuj tseem siv rau hauv kev tshawb fawb txog kev khaws cia cov khoom siv roj ntsha nyob rau hauv qis kub, txias txias exothermic thiab lub hlwb khov sai, cov ntaub so ntswg, kab mob thiab kab mob.
• Hauv kev rov tsim dua tshiab: Hauv cov khw noj mov haute, dej khov qhuav yog siv los qhib lub ntiaj teb ntawm kev muaj peev xwm los tsim cov kab txawv ntawm qhov zoo ntawm tus nqi thiab tus nqi. Ua tsaug rau lub zog ntawm cov dej khov no, cov ntsiab lus zoo nkauj heev thiab ntxim siab tuaj yeem ua tiav rau cov neeg siv khoom. Cov kws ua zaub mov tshwj xeeb tshaj plaws tuaj yeem piav qhia los ntawm thawj cov lus tshaj tawm rau cov ntxhiab tsw, txias infusions, textures thiab qhov tsis sib thooj hauv mousses thiab foie gras, slushies, ice cream, foams thiab cream, los yog tsim cov xim zoo nkauj nrog cov pa luam yeeb hauv kev sib xyaw thiab npaj tau zoo cocktails.
• Kev Lag Luam: Hauv kev lag luam cov khoom siv no yog siv los ua kom yooj yim rau kev sib dhos thiab kho kom haum ntawm cov ntawv los ntawm kev cuam tshuam txias. Nws kuj yog siv rau kev sib tsoo cryogenic thiab kev sib cav sib ceg ntawm cov yas thiab cov phuam qhwv caj dab.
• Agri-zaub mov: Hauv cov haujlwm no nws yog siv los ua lub khob noom cookie txias rau hauv kneaders thaum sib tsoo thiab sib xyaw cov nqaij, sib sib zog nqus khov ntawm cov zaub mov thiab kev cai kub. Kev siv cov dej khov qhuav hauv kev thauj mus los xyuas kom muaj kev saib xyuas ntawm cov saw txias.
• Kev faib tawm loj: Nws yog siv thaum yuav tsum tau kho sai sai yog tias qee qhov khoom siv tub yees tsis sib txuas thiab txhawm rau tswj cov kab txias.
• Cryogenic tu: cov dej khov qhuav tuaj yeem raug txhaj rau thaum siab siab los ntxuav tag nrho cov chaw uas tau raug qee yam kev hloov kho los ntawm dej, raws li hauv qee qhov kev teeb tsa hluav taws xob.
• Ua liaj ua teb: Nws siv nrog cov txiaj ntsig zoo rau kev tswj kab tsuag xws li nas, moles thiab kab.
• Xyuas hauv computer thiab cov khoom siv hluav taws xob: Nws yog qhov kev xaiv zoo heev rau txias txias cov khoom siv hluav taws xob thiab txhim kho lawv cov kev ua tau zoo, ua kom nrawm kis cov hluav taws xob.
• Kev Tsim Kho: Nws yog siv los khov rau hauv pem teb thiab kav dej los tsim cov ntsaws ua ntej tu.

Yuav ua li cas ua dej khov qhuav hauv tsev

Yog tias koj xav pom qhov tshwj xeeb cuam tshuam ntawm dej khov qhuav hauv tsev, koj tsuas yog yuav tsum muaj cov ntawv hauv qab no:

• CO2 - carbon dioxide (peb tuaj yeem tau txais los ntawm lub taub tua hluav taws)
• Ib lub hnab lossis daim ntaub
• Ib qho tshwj xeeb rau khaus cov kauj tsheb kauj vab

Koj yuav tsum muab lub hnab ntim cov ntaub (nws yog ib qho tseem ceeb uas nws muaj hws tawm hws kom nws dim pa me me) nyob ib ncig ntawm lub tshuab txav hluav taws xob lossis cov pa roj carbon monoxide CO2 uas peb siv. Thaum peb tau tso lub hnab ntaub, peb tso cov roj tawm kom nws nkag mus rau hauv lub hnabCov. Thaum cov roj tso tawm, lub siab hauv nws yuav ua rau nws khov thiab peb yuav muaj dej khov qhuav. Peb tuaj yeem siv cov dej khov no kom muab tau lub txiaj ntsig zoo rau peb cov khoom qab zib thiab dej qab zib, txij li thaum nws chwv nrog dej nws yuav sublimate thiab muab nce ntxiv ntawd cov pa dawb zoo nkauj.

Raws li koj tuaj yeem pom, dej khov qhuav tau siv dav hauv ntau cov haujlwm thiab nws cov kev cuam tshuam tsis muaj qhov xav tsis thoob. Tam sim no koj paub nws lub zog, twv siv nws nyob hauv tsev thiab ua rau koj cov phooj ywg ceeb.