ziviso

Kubatanidza Kupisa Kwemarara kune Simba Diki Zvishandiso

Masayendisiti akagadzira chinhu chakakodzera chekushandisa mune thermo-magetsi jenareta zvichibva pane 'anomalous Nernst athari (ANE)' iyo inowedzera magetsi ekugadzira mashandiro akawanda. Midziyo iyi inogona kupfekwa zvakanaka muchimiro uye saizi inochinjika kuti igone magetsi madiki, nekudaro kutsiva. Mabhatiri.

Thermo-electric effect inosanganisira kuchinjika kwesimba rekupisa uye magetsi; inonzi Seebeck effect, apo kupisa kunoshandurwa kuita simba remagetsi panosangana simbi mbiri dzakasiyana uye, reverse inonzi Peltier effect, kureva kushandurwa kwesimba remagetsi kuita chizvarwa chekupisa.

Kupisa kwacho kuri kuwanda, uye dzimwe nguva kunoparara, uko kwaigona kukohwewa kuti kusimbise midziyo yemagetsi. Pakave nekuedza kwakawanda munguva yakapfuura kugadzira tekinoroji inoshanda yekukohwa kupisa. Iyo yakavakirwa paSeebeck mhedzisiro yaisakwanisa kuona mwenje wezuva nekuda kwekumisikidza kwakati.

Chiitiko chisinganyanyi kuzivikanwa chinonzi Anomalous Nernst Effect (ANE), kureva kushandiswa kwetembiricha gradient mumagetsi magineti inogadzira magetsi emagetsi perpendicular kuyerera kwekupisa uye yakashandiswawo munguva yakapfuura pakukohwa kupisa uye kushandurwa kwayo kumagetsi. Nekudaro, kugona kwayo kwave kushoma nekuda kwekushaiwa kwakakodzera kusina chepfu, kuwanikwa nyore uye zvisingadhuri zvinhu.

Kutsvaga kwechinhu ichi chaiko kunoratidzika kunge kwapera izvozvi! Vatsvakurudzi vachangobva kuzivisa kugadzira alloy isiri-chepfu, inowanikwa nyore, isingadhuri uye inogadzirwa zvakakwana kuti iitwe mafirimu matete kuti aenderane nezvinodiwa. Kushandisa nzira ye doping, vatsvakurudzi vakaita Fe3Al kana FE3Ga (75% iron uye 25% aluminium kana gallium). Pakashandiswa chinhu ichi, voltage inogadzirwa yakawedzera ka20.

Ichi chichangobva kugadzirwa chinoratidzika kuva chinovimbisa zvikuru uye chinogona kushandiswa kugadzira zvinhu zvitete uye zvinochinjika zvinokwanisa kukohwa tsvina inopisa zvakanaka kushandura kumagetsi emagetsi, anokwana zvakakwana kusimba midziyo miduku.

Kuwanikwa kwechinyorwa ichi icho chakanyatsoenderana nezvezvivakwa, zvinogona kuitika nekuda kwekuwanikwa kwepamusoro-kumhanya, otomatiki nhamba dzemakomputa tekinoroji, zvinobudirira kukunda zvipimo zvechinyakare nzira yekuvandudza zvinhu yakavakirwa pa'kudzokorora' uye 'kunatsiridza'. .

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Sources:

1. Yunivhesiti yeTokyo 2020. Press kuburitswa. Yakawanda element yekugonesa midziyo midiki. Jenareta yakatetepa, iron-based generator inoshandisa kupisa kwemarara kupa simba shoma. Yakatumirwa 28 Kubvumbi 28, 2020. Inowanikwa online pa https://www.u-tokyo.ac.jp/focus/en/press/z0508_00106.html Yakasvika musi wa08 Chivabvu 2020.

2. Sakai, A., Minami, S., Koretsune, T. et al. Iron-based binary ferromagnets yekuchinjisa thermoelectric shanduko. Zvisikwa 581, 53–57 (2020). DOI: https://doi.org/10.1038/s41586-020-2230-z

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