momwe botolo la vacuum limatha kutentha

Mabotolo a thermos, omwe amadziwikanso kuti vacuum flasks, akhala chinthu chofunikira kwa ambiri.Amalola kuti zakumwa zathu zomwe timakonda zizikhala zotentha kapena zozizira kwa nthawi yayitali, zomwe zimawapangitsa kukhala abwino kwa maulendo ataliatali, kuyenda panja kapena kungosangalala ndi chakumwa chotentha m'nyengo yozizira.Koma kodi munayamba mwadzifunsapo za mmene thermos imasungira zinthu zake pa kutentha koyenera kwa nthaŵi yaitali?Mu blog iyi, tifufuza za sayansi yomwe imayambitsa kutentha kwa ma thermoses ndikuphunzira chifukwa chake imakhala yothandiza kwambiri pa insulating.

Phunzirani za kusamutsa kutentha:
Kuti mumvetsetse momwe botolo la vacuum limachotsera kutentha, ndikofunikira kumvetsetsa lingaliro la kusamutsa kutentha.Kutentha kumasamutsidwa mosalekeza kuchokera kumadera otentha kwambiri kupita kumadera otsika kwambiri kuti akwaniritse matenthedwe ofanana.Pali njira zitatu zosinthira kutentha: conduction, convection ndi radiation.

Kuyendetsa ndi kusuntha mu thermos:
Thermoses amadalira makamaka njira ziwiri zotumizira kutentha: conduction ndi convection.Njirazi zimachitika pakati pa zomwe zili mu botolo ndi makoma amkati ndi akunja a botolo.

mayendedwe:
Kuchititsa kumatanthauza kusamutsa kutentha kudzera mu kukhudzana mwachindunji pakati pa zipangizo ziwiri.Mu thermos, wosanjikiza wamkati womwe umasunga madzi nthawi zambiri amapangidwa ndi galasi kapena chitsulo chosapanga dzimbiri.Zida zonsezi ndi zokonda kutentha kwambiri, zomwe zikutanthauza kuti sizimalola kutentha kudutsa.Izi zimachepetsa kusamutsidwa kwa kutentha kuchokera mu botolo kupita ku chilengedwe chakunja.

convection:
Convection imaphatikizapo kutumiza kutentha kudzera mukuyenda kwamadzimadzi kapena gasi.Mu thermos, izi zimachitika pakati pa madzi ndi khoma lamkati la botolo.Mkati mwa botolo nthawi zambiri mumakhala makoma a magalasi awiri, malo omwe ali pakati pa makoma a galasi amachotsedwa pang'ono kapena kwathunthu.Derali limagwira ntchito ngati insulator, kuletsa kuyenda kwa mamolekyu a mpweya ndikuchepetsa njira yolumikizira.Izi zimachepetsa bwino kutentha kwa madzi kupita ku mpweya wozungulira.

Zovala za radiation ndi insulating:
Ngakhale conduction ndi convection ndiye njira yayikulu yochepetsera kutentha mu thermos, ma radiation amakhalanso ndi gawo laling'ono.Radiation imatanthawuza kusamutsidwa kwa kutentha ndi mafunde a electromagnetic.Komabe, mabotolo a thermos amachepetsa kutentha kwa kutentha pogwiritsa ntchito zokutira zowunikira.Zopaka izi zimawonetsa kutentha kowala kubwereranso mu botolo, kuti zisatuluke.

Kuphatikiza pa kusungunula vacuum, thermos imakhalanso ndi chivindikiro.Chivundikirocho chimachepetsanso kutayika kwa kutentha mwa kuchepetsa kukhudzana kwachindunji kutentha kutentha pakati pa madzi ndi mpweya wozungulira kunja kwa botolo.Zimapanga chotchinga chowonjezera, kuwonetsetsa kuti chakumwa chanu chizikhala pa kutentha komwe mukufuna kwa nthawi yayitali.

Kudziwa mmene thermos imachotsera kutentha kumatithandiza kuyamikira sayansi ndi uinjiniya womwe umakhudzidwa popanga makina otsekemera otsekemera.Pogwiritsa ntchito kuphatikiza kwa conduction, convection, radiation ndi zotsekera zotchingira, ma flasks awa ndiabwino kwambiri pakusunga kutentha kwa chakumwa chanu, kaya kukutentha kapena kuzizira.Chifukwa chake nthawi ina mukamamwa kapu ya khofi yotentha kapena kusangalala ndi chakumwa choziziritsa bwino patatha maola ambiri mutadzaza thermos yanu, kumbukirani sayansi yosunga kutentha kwabwino.