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Na wai i hana ke kīʻaha thermos?

Na wai i hana ke kīʻaha thermos?

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ʻO ka ʻōmole thermos, i ʻike ʻia ʻo ka thermos, i hana mua ʻia e ka ʻepekema Pelekane ʻo Dewar.

I ka makahiki 1900, ua hoʻololi ʻo Dewar i ka hydrogen compressed i loko o ka wai-wai hydrogen no ka manawa mua ma kahi haʻahaʻa haʻahaʻa o -240°C.Pono e mālama ʻia kēia wai hydrogen i loko o kahi ʻōmole, aniani maʻamau, ninini i ka wai wela i loko, a maʻalili ma hope o kekahi manawa.Hoʻokomo ʻia nā pahu hau, a heheʻe lākou i kekahi manawa.No laila, no ka mālama ʻana i kēia hydrogen wai anuanu, pono e loaʻa kahi pahu e paʻa ai no ka manawa lōʻihi.Akā i kēlā manawa, ʻaʻohe thermos like ʻole i ka honua i kēlā manawa, no laila pono ʻo ia e ʻae i kahi hoʻonohonoho o nā mea hoʻoheheʻe e holo mau ana.I mea e hoʻopakele ai i kēia wai hydrogen, pono e hoʻolilo i ka nui o ka ikehu, ʻaʻole pono a paʻakikī loa.

No laila, hoʻomaka ʻo Dewar e hoʻomohala i kahi ʻōmole e hiki ke mālama i ka mahana e mālama ai i ka hydrogen wai.Eia naʻe, ʻaʻole hiki i nā ʻōmole aniani maʻamau ke mahana.ʻO ia no ka mea ʻoi aku ka haʻahaʻa o ka mahana o ke kaiapuni a puni ma mua o ka wai wela, akā ʻoi aku ka kiʻekiʻe ma mua o nā pahu hau.Huli ka wai wela a me nā pahu hau me ka ea o waho a like ka mahana o waho o ka ʻōmole.Inā paʻa ka waha o ka ʻōmole me kahi pani, ʻoiai ua paʻa ke kahawai convection ea, aia i ka ʻōmole ponoʻī ka waiwai o ka hoʻoili wela.Ke alakaʻi nei ka hoʻololi ʻana i ka wela a me ka nalowale o ka wela.No kēia hopena, hoʻohana ʻo Dewar i kahi ʻano vacuum, ʻo ia hoʻi, hana ʻia kahi ʻōmole pālua ʻelua e wehe i ka ea i loko o ke keʻena a ʻoki i ka conduction.Akā, aia kekahi mea e pili ana i ka mālama ʻana i ka wela, ʻo ia hoʻi, ka hahau wela.I mea e hoʻoponopono ai i ka hopena insulation wela o ka ʻōmole papalua, ua hoʻohana ʻo Dewar i kahi ʻāpana kālā a i ʻole ka pena hoʻomanaʻo i loko o ke keʻena ʻūhā e pale ai i ka hoʻihoʻi ʻana i ka hahau wela.ʻO nā kaha ʻekolu o ka hoʻoili wela he convection, conduction a me radiation.Inā paʻa ia, e mālama ka liner o loko o ka ʻōmole i ka mahana no ka manawa lōʻihi.Ua hoʻohana ʻo Dewar i kēia ʻano ʻōmole āna i hana ai no ka mālama ʻana i ka wai hydrogen.

Eia naʻe, ʻo Reinhold Berger, ka mea hana aniani Kelemania, ka mea i ʻike he pono ka thermos i nā ʻano ʻano like ʻole, ua patent ka thermos i ka makahiki 1903 a ua hoʻolālā e lawe i ka mākeke.

Ua hoʻopaʻapaʻa ʻo Berg i ka inoa o kāna thermos.ʻO ka inoa lanakila āna i koho ai ʻo "thermos," ʻo ia ka huaʻōlelo Helene no ka wela.

Ua kūleʻa loa ka huahana a Berg no laila ua hoʻouna ʻo ia i nā thermos a puni ka honua.

Pili loa nā ʻōmole Thermos i ka hana a me ke ola o nā kānaka.Hoʻohana ʻia lākou i loko o nā laboratories e mālama i nā kemika, a lawe pinepine ʻia nā lāʻau lapaʻau cowpox, serum a me nā wai ʻē aʻe i loko o nā hue thermos.I ka manawa like, aneane loaʻa i kēlā me kēia hale nā ​​ʻōmole thermos a me nā kīʻaha liʻiliʻi..Hoʻohana ka poʻe ia mea no ka mālama ʻana i nā meaʻai a me nā mea inu i ka wā pīniki a me nā pāʻani pôpeku.

I nā makahiki i hala iho nei, ua hoʻohui ʻia nā ʻano hou he nui i ka puka wai o ka thermos, a ua hana ʻia kahi thermos kaomi, kahi thermos contact, etc.Akā ʻaʻole i loli ke kumu o ka insulation.


Ka manawa hoʻouna: Feb-28-2022