通風(feng)天窗(chuang)基于對流原理，利用室內外溫(wen)差(cha)、氣壓差(cha)或風(feng)壓實現自然通風(feng)。

通(tong)風(feng)(feng)(feng)(feng)天窗實現通(tong)風(feng)(feng)(feng)(feng)的(de)方式(shi)多樣。基于熱(re)壓(ya)(ya)通(tong)風(feng)(feng)(feng)(feng)原理(li)，室(shi)內(nei)熱(re)空(kong)(kong)(kong)氣(qi)(qi)密(mi)度(du)小，會自然上升(sheng)，通(tong)過高(gao)處(chu)的(de)通(tong)風(feng)(feng)(feng)(feng)天窗排出，此(ci)時(shi)室(shi)內(nei)氣(qi)(qi)壓(ya)(ya)降低形成負壓(ya)(ya)區(qu)，室(shi)外新鮮的(de)冷空(kong)(kong)(kong)氣(qi)(qi)密(mi)度(du)大(da)，便(bian)從(cong)下部進(jin)入室(shi)內(nei)，從(cong)而形成空(kong)(kong)(kong)氣(qi)(qi)的(de)循環對流。風(feng)(feng)(feng)(feng)壓(ya)(ya)通(tong)風(feng)(feng)(feng)(feng)原理(li)也(ye)發揮著(zhu)重(zhong)要作用，當有(you)自然風(feng)(feng)(feng)(feng)吹向建筑時(shi)，建筑的(de)迎風(feng)(feng)(feng)(feng)面氣(qi)(qi)壓(ya)(ya)高(gao)，背(bei)風(feng)(feng)(feng)(feng)面氣(qi)(qi)壓(ya)(ya)低，這一氣(qi)(qi)壓(ya)(ya)差使得空(kong)(kong)(kong)氣(qi)(qi)經(jing)天窗進(jin)出室(shi)內(nei)。此(ci)外，通(tong)風(feng)(feng)(feng)(feng)天窗還利用空(kong)(kong)(kong)氣(qi)(qi)動(dong)(dong)力學原理(li)，通(tong)過特(te)殊設計(ji)如采用流線型外觀(guan)，引導氣(qi)(qi)流，有(you)效(xiao)減少空(kong)(kong)(kong)氣(qi)(qi)流動(dong)(dong)的(de)阻(zu)力，大(da)大(da)提升(sheng)通(tong)風(feng)(feng)(feng)(feng)效(xiao)率。

通(tong)(tong)風(feng)(feng)天窗通(tong)(tong)過熱壓、風(feng)(feng)壓以及空氣(qi)(qi)動力學等原理，實(shi)現室內外空氣(qi)(qi)的(de)有效交換，為室內帶來新鮮(xian)空氣(qi)(qi)，提升空氣(qi)(qi)質量，是一(yi)種節能環保且高效的(de)通(tong)(tong)風(feng)(feng)方(fang)式 。