Ubudlelwane phakathi kwe-thermal conductivity ye-insulation material ngu-λ=k/(ρ×c), apho i-k imele i-thermal conductivity yezinto, ρ imele ubuninzi, kwaye u-c umele ubushushu obuthile.
1. Ingcamango ye-thermal conductivity
Kwizinto zokufakelwa kwe-insulation, i-thermal conductivity ibhekisela kumandla okushisa kwindawo nganye yeyunithi kwizinto eziphathekayo ukuze zidlule kwizinto eziphathekayo ngexesha leyunithi, oko kukuthi, izinga lokutshintshwa kobushushu. Idla ngokubonakaliswa ngokuhamba kobushushu kwindawo nganye yeyunithi ngexesha leyunithi xa umahluko wobushushu uyi-1K, kunye neyunithi yi-W/(m·K). Ubungakanani bokuqhuba ubushushu buxhomekeke kwi-conductivity ye-thermal kunye nokwahlukana kweqondo lokushisa kwezinto.
2. Ifomula yokubala ye-thermal conductivity
I-thermal conductivity ye-insulation material ihambelana nokuxinana, ukushisa okuthe ngqo kunye ne-thermal conductivity yezinto eziphathekayo, kunye nobudlelwane phakathi kwabo: λ=k/(ρ×c).
Phakathi kwazo, i-k imele i-thermal conductivity yezinto, iyunithi yi-W/(m·K); ρ imele uxinano, iyunithi yi kg/m³; c imele ubushushu obuthile, iyunithi ngu-J/(kg·K). Le fomyula isixelela ukuba ukuba sifuna ukunciphisa i-thermal conductivity ye-insulation material, kufuneka sinciphise ubuninzi, amandla athile okushisa kunye ne-thermal conductivity yezinto.
3. Izinto ezichaphazela i-thermal conductivity
I-thermal conductivity ye-insulation material ichaphazeleka kwizinto ezininzi, ezifana nokushisa, izakhiwo zesakhiwo (ezifana ne-crystal structure), ukubunjwa kweekhemikhali zezinto eziphathekayo, ukusebenzisana kwezinto, njl. Ukongeza, ubuninzi, umxholo wamanzi. , i-porosity kunye nezinye iiparameters ze-insulation material ziyakuchaphazela kwakhona i-thermal conductivity.
Ixesha lokuposa: Jan-20-2025
