Thermoelectric sanyaya yi

Thermoelectric sanyaya aikin lissafin:

Kafin amfani da thermoelectric sanyaya, don ƙara fahimtar da yi, a gaskiya, sanyi karshen peltier module, thermoelectric modules, sha zafi daga kewaye, akwai biyu: daya joule zafi Qj; Dayan kuma shine conduction heat Qk. Halin da ake ciki yana wucewa ta cikin na'urar thermoelectric don samar da zafi na joule, rabin zafi na joule yana watsawa zuwa ƙarshen sanyi, sauran rabi kuma ana watsa shi zuwa ƙarshen zafi, kuma ana watsa zafi mai zafi daga ƙarshen zafi zuwa ƙarshen sanyi.

Samuwar sanyi Qc=Qπ-Qj-Qk

= (2p-2n).Tc.I-1/2j²R-K (Th-Tc)

Inda R ke wakiltar jimillar juriya na biyu kuma K shine jimlar zafin zafi.

Zafin da aka watsa daga ƙarshen zafi Qh=Qπ+Qj-Qk

= (2p-2n).Th.I+1/2I²R-K (Th-Tc)

Ana iya gani daga sama biyu dalla-dalla cewa shigar da wutar lantarki shine ainihin bambanci tsakanin zafi da aka watsar da ƙarshen zafi da zafi da aka shafe ta ƙarshen sanyi, wanda shine nau'in "famfo mai zafi":

Qh-Qc=I²R=P

Daga wannan tsari na sama, za a iya cewa zafin Qh da ma’auratan lantarki suke fitarwa a karshen zafi daidai yake da adadin wutar lantarkin da aka shigar da ita da kuma yanayin sanyi na karshen sanyi, kuma akasin haka, ana iya cewa yanayin sanyin Qc ya yi daidai da bambancin zafin da karshen zafi ke fitarwa da kuma shigar da wutar lantarki.

Qh=P+Qc

Qc=Qh-P

Hanyar kirga mafi girman ƙarfin sanyaya thermoelectric

A.1 Lokacin da zafin jiki a ƙarshen zafi Th shine 27 ℃ ± 1 ℃, bambancin zafin jiki shine △T = 0, kuma I = Imax.

Matsakaicin ikon sanyaya Qcmax(W) ana ƙididdige shi bisa ga dabara (1): Qcmax=0.07NI

Inda N - logarithm na na'urar thermoelectric, I - matsakaicin bambancin zafin jiki na na'urar (A).

A.2 Idan zafin jiki na zafi surface ne 3 ~ 40 ℃, matsakaicin sanyaya ikon Qcmax (W) ya kamata a gyara bisa ga dabara (2).

Qcmax = Qcmax × [1+0.0042(Th--27)]

(2) A cikin dabara: Qcmax - zafi surface zafin jiki Th = 27 ℃ ± 1 ℃ matsakaicin sanyaya ikon (W), Qcmax∣Th - zafi surface zafin jiki Th - matsakaicin sanyaya ikon (W) a auna zafin jiki daga 3 zuwa 40 ℃

Bayanan Bayani na TES1-12106T125

Zafin gefen zafi shine 30 C,

Farashin: 6A.

Saukewa: 14.6V

Max: 50.8 W

Delta T max: 67 C

ACR: 2.1 ± 0.1Ohm

Girman: 48.4X36.2X3.3mm, Girman rami na tsakiya: 30X17.8mm

An hatimi: An hatimi ta 704 RTV (fararen launi)

Waya: 20AWG PVC, zafin jiki juriya 80 ℃.

Tsawon waya: 150mm ko 250mm

Thermoelectric abu: Bismuth Telluride