Oyenera Atlas kuthamanga kachipangizo P165-5183 B1203-072

Thermoelectric zotsatira za sensor

Zipangizo za semiconductor zili ndi mphamvu zambiri za thermoelectric ndipo zimatha kugwiritsidwa ntchito bwino kupanga mafiriji ang'onoang'ono a thermoelectric. Chithunzi cha 1 chikuwonetsa chinthu cha refrigeration cha thermocouple chopangidwa ndi n-mtundu wa semiconductor ndi p-type semiconductor. Semiconductor yamtundu wa N ndi P-mtundu wa semiconductor amalumikizidwa mu chipika ndi mbale zamkuwa ndi mawaya amkuwa, ndipo mbale zamkuwa ndi mawaya amkuwa zimangogwira ntchito yowongolera. Panthawi imeneyi, kukhudzana kumodzi kumakhala kotentha ndipo kumodzi kumazizira. Ngati njira yomwe ilipo tsopano yasinthidwa, kuzizira ndi kutentha komwe kumachitika pamfundoyi kumakhala kofanana.

Kutulutsa kwa firiji ya thermoelectric nthawi zambiri kumakhala kochepa kwambiri, kotero sikuli koyenera kugwiritsa ntchito zazikulu komanso zazikulu. Komabe, chifukwa cha kusinthasintha kwake kwamphamvu, kuphweka komanso kosavuta, ndi koyenera kwambiri kumunda wa microfiriji kapena malo ozizira omwe ali ndi zofunikira zapadera.

Thermoelectric maziko a thermoelectric firiji ndi thermoelectric zotsatira zolimba. Pamene palibe mphamvu ya maginito yakunja, imaphatikizapo zotsatira zisanu, zomwe ndi kutentha kwa kutentha, kutentha kwa Joule, Seebeck effect, Peltire effect ndi Thomson effect.

Ma air conditioners ndi mafiriji amagwiritsa ntchito fluoride chloride ngati firiji, zomwe zimapangitsa kuti ozoni awonongeke. Mafiriji opanda refrigerant (ma air conditioners) ndiye chinthu chofunikira kwambiri pakuteteza chilengedwe. Pogwiritsa ntchito mphamvu ya thermoelectric ya semiconductors, firiji yopanda firiji imatha kupanga.

Njira yopangira mphamvuyi imatembenuza mwachindunji mphamvu yamafuta kukhala mphamvu yamagetsi, ndipo kusinthika kwake kumachepa ndi Carnotefficiency, lamulo lachiwiri la thermodynamics. Kale mu 1822, Xibe adazipeza, motero mphamvu ya thermoelectric imatchedwanso Seebeckeffect.

Sizogwirizana kokha ndi kutentha kwa magawo awiri, komanso ndi katundu wa oyendetsa ntchito. Ubwino wa njira yopangira mphamvuyi ndikuti ilibe zida zozungulira zamakina ndipo sizidzavala, kotero zitha kugwiritsidwa ntchito kwa nthawi yayitali. Komabe, kuti mukwaniritse bwino kwambiri, gwero la kutentha lotentha kwambiri limafunikira, ndipo nthawi zina zigawo zingapo za zinthu zamagetsi zamagetsi zimatsika kapena zimayikidwa kuti zitheke bwino.