U tus nqi ntawm thermal rwb thaiv tsev khoom yog dab tsi?

U-tus nqi, tseem hu ua U-factor, yog ib qho tseem ceeb ntsuas nyob rau hauv lub tshav pob ntawm thermal rwb thaiv tsev cov khoom.Nws sawv cev rau tus nqi uas lub tshav kub kis los ntawm ib yam khoom.Qhov qis dua U-tus nqi, qhov zoo dua cov rwb thaiv tsev ntawm cov khoom.Kev nkag siab txog U-tus nqi ntawm cov khoom siv rwb thaiv tsev yog qhov tseem ceeb rau kev txiav txim siab txog lub tsev lub zog thiab kev nplij siab.

Thaum xav txog cov khoom siv rwb thaiv tsev, nws yog ib qho tseem ceeb kom nkag siab txog nws qhov U-tus nqi los ntsuas nws cov txiaj ntsig ntawm kev tiv thaiv kom tsis txhob muaj cua sov los yog nce.Qhov no yog qhov tseem ceeb tshwj xeeb hauv kev tsim kho kev lag luam, qhov twg lub zog efficiency thiab sustainability yog qhov tseem ceeb rau kev txiav txim siab.Los ntawm kev xaiv cov khoom lag luam nrog qis U-tus nqi, cov neeg tsim khoom thiab cov tswv tsev tuaj yeem txo qis kev siv hluav taws xob thiab txo cov nqi cua sov thiab cua txias.

U-tus nqi ntawm cov khoom rwb thaiv tsev yog cuam tshuam los ntawm yam xws li cov khoom siv, thickness, thiab ntom.Piv txwv li, cov ntaub ntawv xws li fiberglass, cellulose, thiab foam rwb thaiv tsev muaj qhov sib txawv U-tus nqi vim txawv thermal conductivities.Tsis tas li ntawd, kev tsim kho thiab kev teeb tsa ntawm lub rwb thaiv tsev yuav cuam tshuam rau nws tag nrho U-tus nqi.

Txhawm rau txiav txim siab U-tus nqi ntawm cov khoom siv rwb thaiv tsev tshwj xeeb, ib qho yuav tsum xa mus rau cov kev qhia tshwj xeeb uas muab los ntawm cov chaw tsim khoom.Cov kev qhia tshwj xeeb no feem ntau suav nrog U-tus nqi, qhia hauv chav W / m²K (Watts ib square meter ib Kelvin).Los ntawm kev sib piv U-tus nqi ntawm cov khoom sib txawv, cov neeg siv khoom tuaj yeem xaiv qhov kev paub txog cov khoom siv rwb thaiv tsev zoo tshaj plaws rau lawv cov kev xav tau.

Hauv cov ntsiab lus, U-tus nqi ntawm cov khoom siv rwb thaiv tsev ua lub luag haujlwm tseem ceeb hauv kev ntsuas nws qhov kev ua haujlwm thermal.Los ntawm kev nkag siab thiab txiav txim siab U-tus nqi thaum xaiv cov ntaub ntawv rwb thaiv tsev, cov tib neeg thiab cov lag luam tuaj yeem pab txhawb kev txuag hluav taws xob thiab tsim kom muaj kev nyob zoo thiab muaj kev nyab xeeb thiab ua haujlwm ib puag ncig.Nws yog ib qho tseem ceeb rau qhov tseem ceeb ntawm cov khoom lag luam nrog qis U-tus nqi rau kev pom kev siv hluav taws xob zoo thiab kev nplij siab thermal.