Qhov kev sib raug zoo ntawm cov thermal conductivity ntawm rwb thaiv tsev cov khoom yog λ = k / (ρte × c), ρ sawv cev rau lub ntom ntom, thiab C sawv cev rau qhov kub tshwj xeeb.
1. Lub tswvyim ntawm thermal conductivity
Hauv cov ntaub ntawv rwb thaiv tsev, thermal conductivity hais txog lub peev xwm ntawm tshav kub rau ib cov khoom nyob rau ib lub sijhawm, uas yog, tus mob kub. Nws feem ntau yog qhia los ntawm cov cua sov ntws ib cheeb tsam ib lub sijhawm thaum qhov sib txawv kub yog 1k, thiab chav tsev yog W / (MIS. Qhov ntau ntawm cov cua sov conductation nyob ntawm lub thermal conductivity thiab qhov kub ntawm cov khoom siv.
2. Txoj cai suav ntawm thermal conductivity
Lub thermal conductivity ntawm rwb thaiv tsev cov khoom yog cuam tshuam nrog lub ntho kheej, cov cua sov tshwj xeeb ntawm cov khoom, thiab thermal ntawm lawv yog: λ = k / (ρ × c).
Ntawm lawv, K sawv cev rau cov thermal conductivity ntawm cov khoom, chav tsev yog w / (map k); ρ sawv cev rau ntom ntom, chav ntsuas yog kg / m³; C Sawv cev rau cov cua sov tshwj xeeb, chav dej yog J / (KGMACH K. Cov mis no qhia peb tias yog peb xav txo cov thermal conductivity ntawm rwb thaiv tsev cov khoom, peb yuav tsum tau txo cov khoom siv rwb thaiv tsev, peb yuav tsum tau txo cov khoom siv hluav taws xob, kev ua kom sov sov ntawm cov khoom.
3. Qhov ntau yam cuam tshuam nrog thermal conductivity
Lub thermal conductivity ntawm rwb thaiv tsev cov khoom cuam tshuam los ntawm ntau yam, xws li cov qauv siv tshuaj txhuam hniav), xws li lwm yam ntawm cov khoom siv, thiab lwm yam ntxiv, lub ntom ntom, cov ntsiab lus dej , Porosity thiab lwm yam tsis ntawm cov khoom rwb thaiv tsev kuj tseem yuav cuam tshuam rau cov thermal conductivity.
Lub Sijhawm Post: Jan-20-2025
