Thermos makapundi chinthu chofunikira kwa aliyense amene amakonda zakumwa zotentha, kuyambira khofi mpaka tiyi.Koma kodi munayamba mwadzifunsapo momwe zingasungire zakumwa zanu kutentha kwa maola angapo popanda kugwiritsa ntchito magetsi kapena zinthu zina zakunja?Yankho lagona mu sayansi ya insulation.
Thermos kwenikweni ndi botolo la thermos lopangidwa kuti zakumwa zanu zizitentha kapena kuzizizira kwa nthawi yayitali.Thermos imapangidwa ndi zigawo ziwiri za galasi kapena pulasitiki ndi vacuum yomwe imapangidwa pakati pa zigawozo.Danga pakati pa zigawo ziwirizi lilibe mpweya ndipo ndi insulator yabwino kwambiri yotentha.
Mukathira madzi otentha mu thermos, mphamvu yotentha yomwe imapangidwa ndimadzimadzi imasamutsidwa kupita kugawo lamkati la thermos kudzera mu conduction.Koma popeza mulibe mpweya mu botolo, kutentha sikungathe kutayika ndi convection.Komanso sichingatulukire kutali ndi gawo lamkati, lomwe lili ndi zokutira zowunikira zomwe zimathandiza kuwonetsa kutentha kubwereranso mu chakumwa.
M'kupita kwa nthawi, madzi otentha amazizira, koma kunja kwa thermos kumakhalabe kutentha.Izi zili choncho chifukwa vacuum yomwe ili pakati pa zigawo ziwiri za botolo imalepheretsa kutentha kwa kunja kwa kapu.Chotsatira chake, mphamvu ya kutentha yomwe imapangidwa imasungidwa mkati mwa kapu, kusunga zakumwa zanu zotentha kutentha kwa maola ambiri.
Momwemonso, mukathira chakumwa chozizira mu thermos, thermos imalepheretsa kusuntha kwa kutentha kwachakumwa.Vutoli limathandiza kuti zakumwa zizizizira kuti muzisangalala ndi zakumwa zoziziritsa kukhosi kwa maola ambiri.
Makapu a Thermos amabwera mumitundu yonse, kukula kwake ndi zida, koma sayansi kumbuyo kwa ntchito yawo ndi yofanana.Mapangidwe a makapuwa amakhala ndi vacuum, zokutira zowunikira, komanso zotsekera zomwe zimapangidwira kuti zizitha kutsekeka kwambiri.
Mwachidule, kapu ya thermos imagwira ntchito pa mfundo ya vacuum insulation.Vacuum imalepheretsa kusuntha kwa kutentha kudzera mu conduction, convection ndi radiation, kuwonetsetsa kuti zakumwa zanu zotentha zimakhala zotentha komanso zakumwa zoziziritsa kukhosi zimakhala zoziziritsa.Kotero nthawi ina mukadzasangalala ndi kapu yotentha ya khofi kuchokera ku thermos, tengani kamphindi kuti muzindikire sayansi yomwe imagwira ntchito yake.
Nthawi yotumiza: May-05-2023