Mmekọrịta dị n'etiti njikwa okpomọkụ nke ihe mkpuchi bụ λ=k/(ρ×c), ebe k na-anọchite anya njikwa okpomọkụ nke ihe ahụ, ρ na-anọchite anya njupụta, na c na-anọchite anya okpomọkụ kpọmkwem.
1. Echiche nke ike okpomọkụ
N'ihe mkpuchi ihe, ike okpomọkụ na-ezo aka n'ikike nke okpomọkụ kwa mpaghara dị na ihe ahụ ịgafe ihe ahụ kwa oge, ya bụ, ọnụego mbufe okpomọkụ. A na-egosipụtakarị ya site na mmiri okpomọkụ kwa mpaghara otu otu mgbe ọdịiche okpomọkụ bụ 1K, na nkeji ahụ bụ W/(m·K). Oke nke ike okpomọkụ na-adabere na ike okpomọkụ na ọdịiche okpomọkụ nke ihe ahụ.
2. Usoro ngụkọ nke conductivity okpomọkụ
Ọkwa okpomọkụ nke ihe mkpuchi ahụ metụtara njupụta, okpomọkụ kpọmkwem na ike okpomọkụ nke ihe ahụ, mmekọrịta dị n'etiti ha bụkwa: λ=k/(ρ×c).
N'ime ha, k na-anọchite anya ike okpomọkụ nke ihe ahụ, nkeji ahụ bụ W/(m·K); ρ na-anọchite anya njupụta, nkeji ahụ bụ kg/m³; c na-anọchite anya okpomọkụ kpọmkwem, nkeji ahụ bụ J/(kg·K). Usoro a na-agwa anyị na ọ bụrụ na anyị chọrọ ibelata ike okpomọkụ nke ihe mkpuchi, anyị kwesịrị ibelata njupụta, ikike okpomọkụ kpọmkwem na ike okpomọkụ nke ihe ahụ.
3. Ihe ndị na-emetụta ike okpomọkụ
Ọtụtụ ihe na-emetụta ike okpomọkụ nke ihe mkpuchi ahụ, dịka okpomọkụ, ihe owuwu nke ihe ahụ (dịka nhazi kristal), ihe mejupụtara kemịkalụ nke ihe ahụ, mmekọrịta nke ihe ahụ, wdg. Na mgbakwunye, njupụta, ọdịnaya mmiri, porosity na paramita ndị ọzọ nke ihe mkpuchi ahụ ga-emetụtakwa ike okpomọkụ ahụ.
Oge ozi: Jenụwarị-20-2025
