Alaƙar da ke tsakanin ƙarfin wutar lantarki na kayan rufi ita ce λ=k/(ρ×c), inda k ke wakiltar ƙarfin wutar lantarki na kayan, ρ yana wakiltar yawansu, kuma c yana wakiltar takamaiman zafin.
1. Manufar ma'aunin zafin jiki
A cikin kayan rufi, ƙarfin lantarki na zafi yana nufin ikon zafi a kowane yanki a cikin kayan don wucewa ta cikin kayan a kowane lokaci, wato, ƙimar canja wurin zafi. Yawanci ana bayyana shi ta hanyar kwararar zafi a kowane yanki a kowane lokaci lokacin da bambancin zafin jiki shine 1K, kuma na'urar shine W/(m·K). Girman watsa zafi ya dogara da ƙarfin lantarki da bambancin zafin jiki na kayan.
2. Tsarin lissafin ma'aunin zafin jiki
Tsarin watsa zafi na kayan rufewa yana da alaƙa da yawan abu, takamaiman zafi da kuma watsa zafi na kayan, kuma dangantakar da ke tsakaninsu ita ce: λ=k/(ρ×c).
Daga cikinsu, k yana wakiltar ƙarfin lantarki na kayan, naúrar tana da W/(m·K); ρ tana wakiltar yawan lantarki, naúrar tana da kg/m³; c tana wakiltar takamaiman zafi, naúrar kuma tana da J/(kg·K). Wannan dabarar tana gaya mana cewa idan muna son rage ƙarfin lantarki na kayan rufi, muna buƙatar rage yawan lantarki, ƙarfin zafi na musamman da kuma ƙarfin lantarki na kayan.
3. Abubuwan da ke shafar yanayin zafi
Ana shafar yanayin zafi na kayan rufi ta hanyar abubuwa da yawa, kamar zafin jiki, halayen tsarin kayan (kamar tsarin lu'ulu'u), sinadaran kayan, hulɗar kayan, da sauransu. Bugu da ƙari, yawan ruwa, yawan ruwa, porosity da sauran sigogi na kayan rufi suma zasu shafi yanayin zafi.
Lokacin Saƙo: Janairu-20-2025
