momwe botolo la vacuum limachepetsa kutentha

M'dziko lamasiku ano lomwe likuyenda mwachangu, timadalira zida ndi zida zosiyanasiyana kuti moyo wathu watsiku ndi tsiku ukhale wosavuta.Chimodzi mwazinthu zatsopanozi chinali botolo la vacuum, lomwe limadziwikanso kuti vacuum flask.Chidebe chonyamulika komanso chogwira ntchito bwino chimenechi chasintha mmene timasungira ndi kutengera zakumwa zotentha kapena zoziziritsa kukhosi, kuzisunga pa kutentha komwe tikufuna kwa nthawi yaitali.Koma kodi munayamba mwadzifunsapo momwe thermos imagwirira ntchito matsenga ake?Mu positi iyi yabulogu, timayang'ana dziko losangalatsa laukadaulo wa thermos ndikuwunika momwe lingachepetsere kutentha.

Lingaliro la kutumiza kutentha:

Musanafufuze tsatanetsatane wa ma flasks a thermos, ndikofunikira kumvetsetsa lingaliro lofunikira la kusamutsa kutentha.Kusintha kwa kutentha kumatha kuchitika kudzera m'njira zitatu: conduction, convection, ndi radiation.Convection ndi kusamutsa kutentha kudzera kukhudzana mwachindunji pakati pa zinthu ziwiri pamene convection ndi kusamutsidwa kwa kutentha kupyolera mu kayendedwe ka madzi monga mpweya kapena madzi.Kutentha kumaphatikizapo kusamutsa kutentha mu mawonekedwe a mafunde a electromagnetic.

Kumvetsetsa Kutaya Kwakutentha mu Zotengera Zachikhalidwe:

Zotengera zachikhalidwe, monga mabotolo kapena makapu, nthawi zambiri zimalephera kusunga kutentha komwe kumafunikira mkati mwamadzi kwa nthawi yayitali.Izi zimachitika makamaka chifukwa cha kutayika kwa kutentha komwe kumayendetsedwa ndi ma conduction ndi ma convection.Pamene madzi otentha amatsanuliridwa mu botolo wamba, kutentha kumayendetsedwa mofulumira kumtunda wa kunja kwa chidebecho, kumene kumatayidwa mumlengalenga wozungulira.Kuphatikiza apo, convection mkati mwa chidebe imathandizira kutengera kutentha, zomwe zimapangitsa kuti mphamvu yamafuta iwonongeke kwambiri.

Mfundo ya botolo la thermos:

Thermos idapangidwa mwanzeru kuti ichepetse kutaya kutentha pophatikiza zinthu zingapo zatsopano.Gawo lofunikira lomwe limasiyanitsa thermos ndikumanga kwake kosanjikiza kawiri.Makoma amkati ndi akunja nthawi zambiri amapangidwa ndi chitsulo chosapanga dzimbiri ndipo amalekanitsidwa ndi wosanjikiza wa vacuum.Vacuum layer iyi imagwira ntchito ngati chotchinga bwino cha kutentha, kulepheretsa kutentha kwa conduction ndi convection.

Imachepetsa kutentha kwa conductive:

The vacuum wosanjikiza mu botolo amathetsa kukhudzana mwachindunji mkati ndi kunja makoma, kwambiri kuchepetsa kutentha kutengerapo.Palibe mpweya kapena kanthu mu vacuum, ndipo kusowa kwa tinthu tating'onoting'ono timene timatha kusamutsa kutentha kumatsimikizira kutaya kochepa kwa mphamvu yotentha.Mfundo imeneyi imapangitsa kuti zakumwa zotentha zikhale zotentha kwa maola ambiri, zomwe zimapangitsa kuti ma thermos akhale abwino pazochitika zakunja, kuyenda maulendo ataliatali kapena madzulo abwino kunyumba.

Pewani kusamutsa kutentha kwa convective:

Kupanga kwa botolo la vacuum kumalepheretsanso convection yomwe imayambitsa kutentha kwachangu.Kutsekereza vacuum wosanjikiza kumalepheretsa mpweya kuyenda pakati pa makoma, kuchotsa convection ngati njira yotaya kutentha.Njira yatsopanoyi imathandiziranso kusunga kutentha komwe mukufuna kwa nthawi yayitali, kupangitsa thermos kukhala chisankho chabwino kwambiri chokonda zakumwa zotentha popita.

Kutseka Chigwirizano: Zowonjezera Zowonjezera:

Kuphatikiza pakupanga makoma awiri, mabotolo a thermos nthawi zambiri amakhala ndi zinthu zina kuti awonetsetse kuti akugwira ntchito kwambiri.Izi zingaphatikizepo zisindikizo za silikoni zopanda mpweya kapena mapulagi a rabala omwe amalepheretsa kutentha kwapang'onopang'ono.Kuphatikiza apo, ma flasks ena amakhala ndi zokutira zowunikira mkati kuti achepetse kutentha kwanyengo.

Pomaliza:

Thermos ndi umboni wa luntha laumunthu komanso kufunitsitsa kwathu kosalekeza kuti tipeze njira zothetsera mavuto a tsiku ndi tsiku.Pogwiritsa ntchito mfundo za thermodynamics, luso losavuta koma lanzeruli limachepetsa kutayika kwa kutentha ndikusunga zakumwa zathu pa kutentha koyenera kwa nthawi yayitali.Chifukwa chake kaya mukumwa kapu ya khofi wotentha m'mawa wozizira kapena kusangalala ndi kapu yotsitsimula ya tiyi pa tsiku lotentha, mutha kukhulupirira kuti thermos yanu imasunga chakumwa chanu momwe mumakondera - chakumwa chotentha kwambiri kapena zotsitsimula.