1. Izinga lokushisa: Izinga lokushisa linomthelela oqondile ku-conductivity yokushisa yezinto ezihlukahlukene zokushisa ezishisayo.Njengoba izinga lokushisa likhuphuka, i-conductivity eshisayo yezinto iyakhuphuka.
2. Okuqukethwe umswakama: Zonke izinto ezishisayo zokushisa zinesakhiwo esinezimbotshana futhi kulula ukumunca umswakama.Uma umswakama ungaphezu kuka-5% ~ 10%, umswakama uthatha ingxenye yesikhala se-pore ekuqaleni esigcwele umoya ngemva kokuba impahla imunca umswakama, okwenza ukuthi ukuguquguquka kwayo okushisayo okusebenzayo kukhuphuke kakhulu.
3. Ukuminyana ngobuningi: Ukuminyana kwenqwaba kuwukubonakaliswa okuqondile kokuqina kwento.Njengoba i-thermal conductivity yesigaba segesi ngokuvamile ingaphansi kwesigaba esiqinile, izinto zokushisa ezishisayo zine-porosity enkulu, okungukuthi, ukuminyana kwenqwaba encane.Ngaphansi kwezimo ezijwayelekile, ukwandisa ama-pores noma ukunciphisa ukuminyana kwenqwaba kuzoholela ekunciphiseni kokushisa okushisayo.
4. Usayizi wezinhlayiya zezinto ezixegayo: Ezingeni lokushisa lasekamelweni, i-thermal conductivity ye-loose material iyancipha njengoba usayizi wezinhlayiyana zempahla uncipha.Lapho ubukhulu bezinhlayiyana bukhulu, ubukhulu begebe phakathi kwezinhlayiya buyakhula, futhi ukuqhutshwa kokushisa komoya okuphakathi kuzokwanda nakanjani.Usayizi wezinhlayiyana ezincane, i-coefficient yokushisa ye-thermal conductivity incane.
5. Isiqondiso sokugeleza kokushisa: Ubudlelwano phakathi kwe-thermal conductivity kanye nesiqondiso sokugeleza kokushisa bukhona kuphela ezintweni ze-anisotropic, okungukuthi, izinto ezinezakhiwo ezahlukene ngezindlela ezihlukahlukene.Lapho isiqondiso sokudlulisa ukushisa sihambisana nesiqondiso se-fiber, ukusebenza kokushisa okushisayo kungcono kunalapho isiqondiso sokudlulisa ukushisa sihambisana nesiqondiso se-fiber;ngokufanayo, ukusebenza kwe-thermal insulation yento enenani elikhulu lama-pores avaliwe nakho kungcono kunaleyo enezimbotshana ezinkulu ezivulekile.Izinto ezisetshenziswa yi-stomatal ziphinde zihlukaniswe zibe izinhlobo ezimbili: udaba oluqinile olunamabhamuza kanye nezinhlayiya eziqinile ezithintana kancane.Ngokombono wokuhlelwa kwezinto ezine-fibrous, kunezimo ezimbili: isiqondiso kanye nesiqondiso sokugeleza kokushisa ku-perpendicular kanye nesiqondiso se-fiber kanye nesiqondiso sokugeleza kokushisa kuyahambisana.Ngokuvamile, ukuhlelwa kwefayibha yezinto zokufakwa kwe-fiber kungokokugcina noma kusondelene nokwakamuva.Isimo esifanayo sokuminyana sisodwa, futhi ukushisa kwayo I-coefficient incane kakhulu kune-thermal conductivity yezinye izinhlobo ze-porous insulation materials.
6. Umthelela wokugcwalisa igesi: Esikhathini se-thermal insulation material, ukushisa okuningi kuqhutshwa kusukela kugesi kuma-pores.Ngakho-ke, i-thermal conductivity ye-insulating material inqunywa kakhulu uhlobo lwegesi yokugcwalisa.Ebunjiniyela bezinga lokushisa eliphansi, uma i-helium noma i-hydrogen igcwele, ingathathwa njengokuqagela kwe-oda lokuqala.Kucatshangelwa ukuthi ukuqhutshwa kokushisa kwe-insulating material kuyalingana ne-thermal conductivity yalawa magesi, ngoba ukushisa kwe-helium noma i-hydrogen kukhulu kakhulu.
7. Umthamo wokushisa othize: Umthamo wokushisa othize wezinto ezibambayo uhlobene namandla okupholisa (noma ukushisa) okudingekayo ekupholiseni nasekushisiseni kwesakhiwo se-insulating.Emazingeni okushisa aphansi, umthamo wokushisa othize wazo zonke izinto eziqinile ziyahlukahluka kakhulu.Ngaphansi kokushisa okujwayelekile nokucindezela, ikhwalithi yomoya ayidluli i-5% yezinto zokufakelwa, kodwa njengoba izinga lokushisa lehla, ingxenye yegesi iyanda.Ngakho-ke, lesi sici kufanele sicatshangelwe lapho kubalwa izinto zokushisa ezishisayo ezisebenza ngaphansi kwengcindezi evamile.
8. I-coefficient yokunwetshwa komugqa: Uma ubala ukuqina nokuzinza kwesakhiwo sokufakelwa kwe-insulation inqubo yokupholisa (noma ukushisa), kuyadingeka ukwazi i-coefficient yokunwetshwa komugqa wezinto zokufakelwa.Uma i-coefficient enwetshiwe yomugqa yento efakwa ku-thermal incane, isakhiwo se-thermal insulation mancane amathuba okuthi sonakaliswe ngenxa yokwanda nokuncipha kokushisa ngesikhathi sokusetshenziswa.I-coefficient yokunwetshwa komugqa wezinto eziningi zokufakwa ezishisayo zehla kakhulu njengoba izinga lokushisa lincipha.
Isikhathi sokuthumela: Jul-30-2021