Dab tsi yog qhov thermal conductivity ntawm rwb thaiv tsev?

Thermal conductivity, tseem hu ua thermal conductivity, yog qhov tseem ceeb uas txiav txim cov nyiaj rwb thaiv tsev. Nws ntsuas cov khoom muaj peev xwm ua kom muaj kev kub ntxhov thiab yog qhov kev txiav txim tseem ceeb thaum xaiv cov ntaub ntawv rau kev ua haujlwm tom tsev. To taub txog cov thermal conductivity ntawm rwb thaiv tsev tuaj yeem pab cov tswv tsev thiab cov tuam txhab tau hais txog kev txiav txim siab txog kev rwb thaiv tsev zoo tshaj plaws hauv lawv lub tsev.

Thermal conductivity yog ib qho kev ntsuas ntawm cov khoom siv lub peev xwm los ua kom muaj cua sov. Nws tau qhia nyob rau hauv watts ib meter ib qib Celsius (W / Mk) thiab xav txog tus nqi thaum tshav kub pauv los ntawm cov khoom siv. Cov ntaub ntawv nrog qis qis thermal conductivity yog cov insulators zoo dua vim tias lawv coj ua cua sov tsis tau zoo.

Thaum nws los txog rau cov rwb thaiv tsev thermal, thermal conductivity ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab kom lub tsev sov nyob rau lub caij ntuj no thiab txias rau lub caij ntuj sov. Rwb thaiv tsev ua haujlwm los ntawm cuab cov hnab ris hauv nws cov qauv, tsim cov thaiv kev uas qeeb qeeb rau kev hloov pauv ntawm tshav kub. Cov ntaub ntawv nrog cov thermal tsawg kev ua haujlwm zoo kom tiv thaiv tshav kub los yog nkag mus rau hauv lub tsev, txo cov nqi zog thiab txhim kho cov neeg muaj zog.

Thermal conductivity ntawm rwb thaiv tsev cov ntaub ntawv tuaj yeem sib txawv nyob ntawm cov khoom siv. Piv txwv, cov rwb meuglass thiab cellulose cellulose muaj cov kev coj ua hluav taws xob ntawm kwv yees li 0.04-0.05 W / Mk, thaum lub tshuaj txau npuas dej muaj peev xwm muaj cov kev coj ua hluav taws xob tsawg li 0.02 w / mk. Vim yog lawv cov khoom siv thermal tsawg, cov ntaub ntawv no suav hais tias cov tshuaj insulators zoo.

Thaum xaiv txoj cai ntawm kev rwb thaiv tsev rau lub tsev, nws yog ib qho tseem ceeb kom nkag siab cov rwb thaiv tsev cov thermal. Yam xws li huab cua, tsim qauv tsim thiab nyiam tus kheej txhua lub luag haujlwm ntawm kev txiav txim siab cov khoom siv rwb thaiv tsev zoo tshaj plaws. Thaum xaiv cov kev xaiv tsim nyog tshaj plaws rau lub tsev tshwj xeeb, nws yog ib qho tseem ceeb kom xav txog cov ntaub ntawv rawv cov nqi r-tus nqi thiab thermal conductivity.

Nyob rau hauv huab cua txias, qhov teeb meem cua sov yog qhov teeb meem, nws yog qhov tseem ceeb los xaiv cov ntaub ntawv rwb thaiv tsev nrog tsis tshua muaj cua sov. Hauv cov huab cua sov sov, yuav pom tias tiv thaiv tshav kub kub, yog li rwb thaiv tsev nrog qis thermal condivity yog qhov tseem ceeb sib luag. Los ntawm kev nkag siab txog cov thermal conductivity ntawm rwb thaiv tsev, cov tswv tsev thiab cov neeg tsim vaj tse tuaj yeem xaiv rwb thaiv tsev zoo tshaj plaws raws li lawv cov kev xav tau.

Hauv cov ntsiab lus, cov thermal conductivity ntawm insulating cov ntaub ntawv yog qhov tseem ceeb hauv kev txiav txim siab cov khoom muaj peev xwm tiv thaiv tshav kub. Cov ntaub ntawv nrog qis dua thermal conductivity yog cov insulators zoo dua, pab txhim kho lub tsev txuag hluav taws xob thiab kev nplij siab. Los ntawm kev nkag siab txog lub thermal conductivity ntawm rwb thaiv tsev ntawm rwb thaiv tsev thiab qhov tseem ceeb, cov tswv tsev thiab cov neeg tsim vaj tse tau hais txog kev txhawb nqa zoo tshaj plaws hauv lawv lub tsev.