He kūpono no ka ʻenekona puʻe Atlas P165-5183 B1203-072

Ka hopena Thermoelectric o ka mea ʻike

Loaʻa i nā mea semiconductor ka mana thermoelectric kiʻekiʻe a hiki ke hoʻohana pono ʻia e hana i nā pahu hau thermoelectric liʻiliʻi. Hōʻike ka Fig. 1 i kahi mea hoʻoheheʻe thermocouple i haku ʻia me ka semiconductor ʻano n a me ka semiconductor ʻano p. Hoʻopili ʻia ka semiconductor N-type a me ka semiconductor P-type i loko o kahi loop e nā pā keleawe a me nā uea keleawe, a ʻo nā pā keleawe a me nā uea keleawe wale nō ke pāʻani i kahi hana conductive. I kēia manawa, wela hoʻokahi paʻi a lilo hoʻi i anu. Inā hoʻohuli ʻia ka ʻaoʻao o kēia manawa, ʻo ka hana anu a me ka wela ma ka node he pānaʻi.

He liʻiliʻi loa ka puka ʻana o ka friji thermoelectric, no laila ʻaʻole kūpono ia no ka hoʻohana nui a me ka nui. Eia nō naʻe, ma muli o kona maʻalahi, maʻalahi a me ka maʻalahi, kūpono loa ia no ke kahua micro-refrigeration a i ʻole nā ​​wahi anu me nā koi kūikawā.

ʻO ke kumu kumu o ka thermoelectric refrigeration ka hopena thermoelectric o ka paʻa. Ke loaʻa ʻole kahi māla magnetic waho, loaʻa iā ia nā hopena ʻelima, ʻo ia hoʻi ka wela wela, Joule wela wela, Seebeck hopena, Peltire hopena a me Thomson hopena.

Hoʻohana nā ea a me nā pahu hau hau i ka fluoride chloride e like me ka refrigerant, kahi e hoʻopau ʻia ai ka papa ozone. No laila, he mea koʻikoʻi nā pahu frigerant-free (air conditioners) i ka mālama ʻana i ke kaiapuni. Me ka hoʻohana ʻana i ka hopena thermoelectric o nā semiconductor, hiki ke hana i kahi pahu frigerant-free refrigerator.

Hoʻololi pololei kēia ʻano hana mana i ka ikehu wela i ka ikehu uila, a ua kaupalena ʻia kona hoʻololi ʻana e Carnotefficiency, ke kānāwai lua o ka thermodynamics. I ka makahiki 1822, ua ʻike ʻia ʻo Xibe, no laila ua kapa ʻia ka hopena thermoelectric ʻo Seebeckeffect.

ʻAʻole pili wale i ka mahana o nā hui ʻelua, akā i nā waiwai o nā conductors i hoʻohana ʻia. ʻO ka pōmaikaʻi o kēia ʻano hana mana, ʻaʻohe ona ʻāpana mechanical rotating a ʻaʻole e ʻaʻahu ʻia, no laila hiki ke hoʻohana ʻia no ka manawa lōʻihi. Eia nō naʻe, no ka hoʻokō ʻana i ka hana kiʻekiʻe, pono kahi kumu wela me ka wela kiʻekiʻe, a i kekahi manawa e hoʻokaʻawale ʻia nā ʻāpana o nā mea thermoelectric a hoʻonohonoho ʻia e hoʻokō i ka hana kiʻekiʻe.