Dab tsi yog tus nqi ntawm thermal rwb thaiv tsev khoom?

Tus nqi U-tus nqi, tseem hu ua U-Factor, yog qhov ntsuas tseem ceeb hauv thaj teb ntawm cov khoom siv hluav taws xob rwb thaiv tsev. Nws sawv cev tus nqi thaum tshav kub hloov mus los ntawm cov khoom siv. Qhov qis dua tus nqi U-tus nqi, qhov zoo dua cov rwb thaiv tsev rwb thaiv tsev ntawm cov khoom. To taub txog tus nqi U-tus nqi ntawm cov khoom rwb thaiv tsev yog qhov tseem ceeb rau kev txiav txim siab txog kev ua haujlwm lub tsev muaj zog thiab kev nplij siab.

Thaum txiav txim siab cov khoom rwb thaiv tsev, nws yog ib qho tseem ceeb kom nkag siab txog nws tus nqi U-tus nqi los ntsuas nws cov hauj lwm zoo hauv kev tiv thaiv kev tiv thaiv kev kub ntxhov lossis nce. Qhov no yog qhov tshwj xeeb tshaj yog nyob rau hauv kev tsim kho kev tsim kho, qhov twg lub zog txuag thiab kev ruaj khov yog qhov kev txiav txim siab tseem ceeb. Los ntawm kev xaiv cov khoom lag luam nrog qis dua U-qhov tseem ceeb, cov neeg tsim vaj tse thiab cov tswv tsev tuaj yeem txo cov nqi hluav taws xob thiab txo cov cua thiab cua txias.

U-tus nqi ntawm rwb thaiv tsev cov khoom yog cuam tshuam los ntawm cov khoom xws li khoom siv hom, tuab, thiab ntom. Piv txwv li, cov ntaub ntawv xws li fiberglass, cellulose, thiab ua npuas ncauj muaj ntau yam kev ua phem vim yog txawv thermal conductivities. Ib qho ntxiv, kev tsim kho thiab kev teeb tsa ntawm cov rwb thaiv tsev yuav cuam tshuam nws cov U-tus nqi tag nrho.

Txhawm rau txiav txim siab U-tus nqi ntawm ib qho khoom rwb thaiv tsev tshwj xeeb, ib qho yuav tsum saib rau cov kev tshwj xeeb muab los ntawm cov khw. Cov kev qhia tshwj xeeb no feem ntau suav nrog U-tus nqi, qhia hauv chav ntawm W / M²k (watts toj ib sab me me ntawm kelvin). Los ntawm kev sib piv cov khoom siv sib txawv, cov neeg siv khoom tuaj yeem xaiv tau cov ntaub ntawv rwb thaiv tsev zoo tshaj plaws uas lawv xav tau.

Hauv cov ntsiab lus, U-tus nqi ntawm cov khoom rwb thaiv tsev ua si yog lub luag haujlwm tseem ceeb hauv kev ntsuas nws cov kev ua tau zoo. Los ntawm kev nkag siab thiab txiav txim siab U-qhov tseem ceeb thaum xaiv cov ntaub ntawv rwb thaiv tsev, cov tib neeg tuaj yeem ua rau lub zog txuag thiab tsim kom muaj kev nyab xeeb thiab ua haujlwm ruaj khov. Nws yog ib qho tseem ceeb uas yuav tsum muaj cov khoom lag luam tseem ceeb nrog kev txhawb nqa zoo rau kev ua kom zoo thiab ua kom sov.