Peb hom kev hloov cua sov

Muaj feem ntau peb lub zog cua sov pauv los ntawm qhov siab - Qhov khoom kub: Kev kho kom haum kub: Kev kho kom haum, convection, thiab hluav taws xob.

Kev cob qhia, tseem hu ua "kev kub ntxhov," yog qhov hloov cua sov vim muaj kev tiv tauj nyob hauv cov khoom uas nyob hauv ib puag ncig. Nws yog cov txheej txheem uas hloov pauv lub zog los ntawm kev txav ntawm cov me me ntawm cov khoom siv tsis pub dhau ib qho khoom. Gases, kua, thiab cov khib nyiab tuaj yeem ua txhua tus coj ua cua sov. Cov yam ntxwv ntawm kev kub kub yog tias tsis muaj macroscopic txheeb ze ntawm ntu ntawm ib qho khoom.

Convertection yog qhov ntws ntawm cov kua dej (roj lossis kua) los ntawm kev nthuav dav, nrog rau qee qhov kev nce siab thiab lub zog txias. Nov yog lub zog hloov los ntawm ib qho khoom txav los ntawm ib thaj chaw ntawm qhov chaw mus rau lwm thaj chaw ntawm qhov kub. Yog li ntawd, cov khib nyiab feem ntau tsis yog kev ntseeg siab. Nws yog ib qho tseem ceeb kom nco ntsoov tias, ntxiv rau kev ntseeg, kev sib tsoo kub kuj tshwm sim ntawm cov dej. "Convertion tshav kub hloov" encompasses ob qho tib si convertection thiab conduction.

Hluav taws xob yog qhov kev tawm tsam ncaj qha ntawm ib qho khoom siv hluav taws xob thermal li hluav taws xob yoj. Hom no ntawm kev hloov pauv cua sov ntawm electromagnetic vuag yog hu ua "thermal hluav taws xob," lwm daim ntawv ntawm cov cua sov hloov. Thermal hluav taws xob tsis tas yuav tsum muaj cov khoom nruab nrab, yog li nws yog daim ntawv ntawm lub zog cua sov hloov hauv lub tshuab nqus tsev. Cov thermal hluav taws xob nthwv dej zoo ib yam yog qhov zoo ib yam li lub teeb ntawm lub teeb, tab sis nrog nthwv dej ntev. Thaum cov nthwv cua no mus txog qhov cua sov -} impermectable cov ntaub ntawv, lawv nqus tau thiab hloov pauv mus rau hauv lub zog cua sov. Cov khoom ntawm ib qho kub muaj peev xwm ob qho tib si tuaj yeem ob qho tib si radiate thiab nqus tshav kub. Yog tias ob qho khoom ntawm cov kub sib txawv radiate rau ib leeg, tus txias txias yuav nqus ntau dua li nws radiates, nce nws tus kheej lub zog kub thiab nce nws qhov kub.