Thermal conductivity, tseem hu ua thermal conductivity, yog qhov tseem ceeb uas txiav txim siab qhov cuam tshuam ntawm cov vaj tsev.Nws ntsuas cov khoom muaj peev xwm ua kom muaj cua sov thiab yog qhov tseem ceeb thaum xaiv cov khoom siv rwb thaiv tsev.Kev nkag siab txog cov thermal conductivity ntawm rwb thaiv tsev tuaj yeem pab cov tswv tsev thiab cov neeg tsim kho kom paub txog kev txiav txim siab txog hom rwb thaiv tsev zoo tshaj plaws los siv hauv lawv lub tsev.
Thermal conductivity yog ib qho kev ntsuas ntawm cov khoom muaj peev xwm ua kom sov.Nws yog qhia nyob rau hauv watts ib 'meter' ib degree Celsius (W / mK) thiab qhia txog tus nqi ntawm cov cua sov kis los ntawm ib tug khoom.Cov ntaub ntawv nrog cov thermal conductivity qis dua yog cov insulators zoo dua vim tias lawv ua kom muaj cua sov tsawg dua.
Thaum nws los txog rau thermal rwb thaiv tsev, thermal conductivity plays lub luag haujlwm tseem ceeb hauv kev txiav txim siab txog cov khoom muaj peev xwm ua kom lub tsev sov nyob rau lub caij ntuj no thiab txias thaum lub caij ntuj sov.Rwb thaiv tsev ua haujlwm los ntawm kev ntxiab huab cua nyob rau hauv nws cov qauv, tsim kom muaj ib qho kev thaiv uas ua rau cov cua sov hloov mus qeeb.Cov ntaub ntawv uas tsis tshua muaj thermal conductivity zoo tiv thaiv kom tsis txhob muaj cua sov los ntawm kev khiav los yog nkag mus rau hauv lub tsev, txo cov nqi hluav taws xob thiab txhim kho cov neeg nyob hauv kev nplij siab.
Thermal conductivity ntawm cov ntaub ntawv rwb thaiv tsev tuaj yeem sib txawv nyob ntawm seb hom khoom siv.Piv txwv li, fiberglass thiab cellulose rwb thaiv tsev muaj thermal conductivity ntawm kwv yees li 0.04-0.05 W / mK, thaum cov tshuaj tsuag npuas rwb thaiv tsev muaj peev xwm muaj thermal conductivity tsawg li 0.02 W / mK.Vim lawv cov thermal conductivity tsawg, cov ntaub ntawv no yog suav tias yog cov insulators zoo.
Thaum xaiv qhov zoo ntawm rwb thaiv tsev rau lub tsev, nws yog ib qho tseem ceeb kom nkag siab txog cov rwb thaiv tsev thermal conductivity.Cov xwm txheej xws li kev nyab xeeb, kev tsim lub tsev thiab kev nyiam ntawm tus kheej txhua tus ua lub luag haujlwm hauv kev txiav txim siab cov khoom siv rwb thaiv tsev zoo tshaj plaws.Thaum xaiv qhov kev xaiv tsim nyog tshaj plaws rau ib lub tsev tshwj xeeb, nws yog ib qho tseem ceeb uas yuav tau xav txog cov khoom siv rwb thaiv tsev R-tus nqi thiab thermal conductivity.
Nyob rau hauv cov huab cua txias, qhov twg cov nqi cua sov yog ib qho teeb meem, nws yog ib qho tseem ceeb los xaiv cov ntaub ntawv rwb thaiv tsev uas tsis muaj thermal conductivity kom txo tau cov cua sov.Nyob rau hauv cov huab cua sov, kev tsom xam yuav yog los tiv thaiv tshav kub, yog li rwb thaiv tsev nrog thermal conductivity tsawg yog qhov tseem ceeb sib npaug.Los ntawm kev nkag siab txog cov thermal conductivity ntawm rwb thaiv tsev, cov tswv tsev thiab cov neeg tsim khoom tuaj yeem xaiv cov rwb thaiv tsev zoo tshaj plaws raws li lawv cov kev xav tau tshwj xeeb.
Hauv cov ntsiab lus, cov thermal conductivity ntawm cov khoom siv insulating yog ib qho tseem ceeb hauv kev txiav txim siab cov khoom muaj peev xwm tiv thaiv kev hloov hluav taws xob.Cov ntaub ntawv nrog cov thermal conductivity qis dua yog cov insulators zoo dua, pab txhim kho lub tsev lub zog thiab kev nplij siab.Los ntawm kev nkag siab txog cov thermal conductivity ntawm rwb thaiv tsev thiab nws qhov tseem ceeb, cov tswv tsev thiab cov neeg tsim khoom tuaj yeem txiav txim siab paub txog hom rwb thaiv tsev zoo tshaj plaws los siv hauv lawv lub tsev.
Post lub sij hawm: Jan-08-2024
