momwe ma vacuum flasks amasungira zakumwa kutentha

Kodi munayamba mwadzifunsapo momwe thermos ingasungire zakumwa zanu kutentha kwa maola mosasamala kanthu za nyengo kunja?Mabotolo a Thermos, omwe amadziwikanso kuti thermoses, akhala chida choyenera kwa iwo omwe amakonda kusangalala ndi zakumwa zawo pa kutentha kwabwino.Mubulogu iyi, tifufuza za sayansi kumbuyo kwa mabotolo a thermos ndikuwulula zamatsenga zomwe zimapangitsa kuti zakumwa zizitentha kwa nthawi yayitali.

Phunzirani za physics:

Kuti timvetsetse momwe thermos imagwirira ntchito, choyamba tiyenera kumvetsetsa malamulo a physics.Thermos imapangidwa ndi zigawo zitatu zofunika: botolo lamkati, botolo lakunja, ndi vacuum layer yomwe imalekanitsa ziwirizi.Botolo lamkati nthawi zambiri limapangidwa ndi galasi kapena chitsulo chosapanga dzimbiri ndipo amagwiritsidwa ntchito kusunga zakumwa.Botolo lakunja limapangidwa ndi chitsulo kapena pulasitiki ndipo limagwira ntchito ngati chitetezo.Vacuum wosanjikiza pakati pa makoma awiriwa amapanga kutchinjiriza pochotsa kutentha kwa conductive kapena convective.

Pewani kusamutsa kutentha:

Conduction ndi convection ndizomwe zimayambitsa kusamutsa kutentha.Mabotolo a Thermos amapangidwa mosamala kuti achepetse njira zonsezi.Vacuum wosanjikiza pakati pa makoma amkati ndi akunja a botolo amachepetsa kwambiri kutentha kwa conductive.Izi zikutanthauza kuti kutentha kapena kuzizira kwa chakumwa kumasungidwa mkati mwa botolo lamkati popanda kutentha kwa kunja.

Kuphatikiza apo, ma flasks a thermos nthawi zambiri amakhala ndi zinthu zowunikira, monga zokutira zasiliva, kuti athe kuthana ndi kutentha kudzera mu radiation.Malo owalawa amathandizira kuwonetsa kutentha kwachakumwa kubwereranso mu botolo, kuti zisathawe.Chifukwa chake, zakumwa zimatha kusungidwa pa kutentha komwe mukufuna kwa nthawi yayitali.

Kusindikiza matsenga:

Chinthu china chofunika kwambiri pakupanga thermos ndi makina osindikizira.Zoyimitsira kapena zotchingira mabotolo amapangidwa mosamala kuti atsimikizire kuti ali ndi chisindikizo chopanda mpweya.Izi zimalepheretsa mpweya uliwonse wakunja kulowa ndikusokoneza malo olamulidwa mkati mwa thermos.Popanda chisindikizo cholimba ichi, kutentha kwamoto kumachitika ndi convection, kumachepetsa kwambiri mphamvu ya botolo kusunga kutentha kwa chakumwa.

Sankhani zinthu zoyenera:

Kusankhidwa kwa zinthu zomwe zimagwiritsidwa ntchito popanga thermos kumathandizanso kwambiri pakuteteza kwake.Chitsulo chosapanga dzimbiri ndi chisankho chodziwika bwino kwa liners chifukwa cha zinthu zake zabwino zotetezera.Kutentha kwapamwamba kwachitsulo chosapanga dzimbiri kumathandiza kugawa kutentha mofanana muzinthu zamadzimadzi.Kumbali inayi, ma flasks akunja amagwiritsa ntchito zida zotsika kwambiri, monga pulasitiki kapena galasi, kuwonetsetsa kuti kutentha kumakhalabe mkati.

Pomaliza:

Chifukwa chake nthawi ina mukadzamwa madzi kuchokera mu thermos ndikumva kutentha kwa chakumwa chomwe mumakonda, kumbukirani sayansi yomwe ili ndi kuthekera kodabwitsa kosunga kutentha.Ma thermoses amagwira ntchito pochepetsa kusuntha kwa kutentha kudzera mu conduction, convection ndi radiation.Vacuum wosanjikiza amapereka kutchinjiriza, kuwala pamwamba kumakana ma radiation, ndipo chisindikizo cha hermetic chimalepheretsa kutayika kwa kutentha kwa convective.Kuphatikiza zinthu zonsezi ndi zida zosankhidwa bwino, thermos yakhala chinthu chopangidwa mwanzeru chomwe chasintha momwe timakondera zakumwa.