momwe botolo la vacuum limagwira ntchito

Kodi munayamba mwadzifunsapo momwe zakumwa zotentha zimakhalira otentha mu thermos kwa maola ambiri?Cholemba chabuloguchi chiwulula zinsinsi zomwe zimachititsa kuti thermos ikhale yotentha kwambiri ndikuwunika sayansi yochititsa chidwi yomwe imagwira ntchito yake.Kuyambira pa kubadwa kwawo kufika pa ntchito yawo ya moyo watsiku ndi tsiku, tiyeni tipende mozama mmene makontena anzeru ameneŵa amagwirira ntchito.

Kodi botolo la vacuum ndi chiyani?
Botolo la vacuum, lomwe limatchedwanso vacuum botolo, ndi chidebe chokhala ndi mipanda iwiri chopangidwa ndi galasi kapena chitsulo chosapanga dzimbiri.Mabotolo awiriwa amasiyanitsidwa ndi malo opanda kanthu, kupanga malo opuma.Kumanga kumeneku kumachepetsa kutentha, kumapangitsa thermos kukhala yabwino kusunga zakumwa zotentha ndi zozizira pa kutentha komwe mukufuna kwa nthawi yayitali.

Njira ya insulation:
Kuti timvetsetse momwe thermos imagwirira ntchito, tifunika kuyang'ana pazigawo zoyambira zomwe zimathandizira pakuteteza kwake:

1. Chidebe chamkati ndi chakunja:
Makoma amkati ndi akunja a thermos nthawi zambiri amapangidwa ndi chitsulo chosapanga dzimbiri, galasi kapena pulasitiki.Chitsulo chosapanga dzimbiri chimapereka zinthu zabwino kwambiri zotetezera, pomwe galasi imapereka kumveka bwino komanso kukana mankhwala.Zidazi zimakhala ngati chotchinga, zomwe zimalepheretsa kutentha kwakunja kuti zisafike zomwe zili mu botolo.

2. Chisindikizo cha vacuum:
Chisindikizo cha vacuum chimapangidwa pakati pa makoma amkati ndi akunja.Njirayi imaphatikizapo kuchotsa mpweya mumpata, kusiya malo opanda mpweya ndi mamolekyu ochepa a gasi.Popeza kutengera kutentha ndi convection ndi conduction kumafuna sing'anga monga mpweya, vacuum imalepheretsa kusamutsidwa kwa mphamvu yotentha kuchokera kunja.

3. Chophimba chowunikira:
Ma thermoses ena amakhala ndi zokutira zonyezimira zachitsulo mkati mwa khoma lakunja.Kuphimba uku kumachepetsa kutentha kwa kutentha, kusuntha kwa kutentha kudzera mu mafunde a electromagnetic.Imathandiza kusunga kutentha kwa zomwe zili mu botolo powonetseranso kutentha komwe kunatulutsidwa.

4. Choyimitsa:
Choyimitsa kapena chivindikiro cha thermos, chomwe nthawi zambiri chimakhala chopangidwa ndi pulasitiki kapena mphira, chimagwira ntchito yofunika kwambiri pakusunga vacuum pochepetsa kutentha kwapang'onopang'ono kuti asatseke.Choyimitsacho chimalepheretsanso kutayikira ndi kutayikira, kuwonetsetsa kuti kutchinjiriza kumakhalabe kolimba.

Sayansi Pambuyo pa Insulation:
Ntchito ya thermos imatengera njira zitatu zopewera kusamutsa kutentha:

1. Kuchititsa:
Kuchititsa ndi kusamutsa kutentha mwa kukhudzana mwachindunji pakati pa zinthu.Mu thermos, kusiyana kwa vacuum ndi kutchinjiriza kumalepheretsa kuyenda pakati pa makoma amkati ndi akunja, kuteteza kutentha kwakunja kuti zisakhudze zomwe zili mkati.

2. Convection:
Convection imadalira kusuntha kwamadzimadzi kapena gasi.Popeza makoma amkati ndi akunja a thermos amasiyanitsidwa ndi mpweya, palibe mpweya kapena madzi owongolera kuwongolera, kumachepetsa kwambiri kutentha kapena kupindula kuchokera ku chilengedwe.

3. Ma radiation:
Kutentha kumathanso kusamutsidwa ndi mafunde a electromagnetic otchedwa radiation.Ngakhale kuti zokutira zonyezimira pamakoma amkati mwa botolo zimachepetsa kutentha, vacuum yokha imakhala ngati chotchinga chabwino kwambiri polimbana ndi kutentha kwamtunduwu.

Pomaliza:
Thermos ndi luso laumisiri, pogwiritsa ntchito mfundo zoyendetsera kutentha kuti apereke chitetezo chodalirika.Pophatikiza zotchingira zotchingira mpweya wa vacuum ndi zida zomwe zimachepetsa conduction, convection ndi radiation, ma flasks awa amawonetsetsa kuti chakumwa chomwe mumakonda chimakhala pa kutentha komwe mukufuna kwa maola ambiri.Kotero nthawi ina mukadzasangalala ndi kapu ya khofi wotentha kapena tiyi wotsitsimula kuchokera ku thermos, yang'anani sayansi yodabwitsa yosunga momwe mukufunira.