Okwu Mmalite Maka Modulu oyi Thermoelectric
Teknụzụ Thermoelectric bụ usoro njikwa okpomọkụ na-arụ ọrụ nke dabere na mmetụta Peltier. JCA Peltier chọpụtara ya na 1834, ihe a na-eme gụnyere ikpo ọkụ ma ọ bụ oyi nke njikọ nke ihe thermoelectric abụọ (bismuth na telluride) site na ịgafe ọkụ eletrik site na njikọ ahụ. N'oge ọrụ, ọkụ eletrik kpọmkwem na-agafe na modulu TEC na-eme ka okpomọkụ si n'otu akụkụ gaa na nke ọzọ. Na-emepụta akụkụ oyi na ọkụ. Ọ bụrụ na a tụgharịa ntụziaka nke ọkụ eletrik, a na-agbanwe akụkụ oyi na ọkụ. Enwere ike ịgbanwe ike oyi ya site na ịgbanwe ọkụ eletrik ya. Igwe oyi nkịtị nke otu ogbo (Foto 1) nwere efere seramiiki abụọ nwere ihe p na ụdị n-sekọndrị (bismuth, telluride) n'etiti efere seramiiki. Ihe ndị dị na ihe semiconductor na-ejikọ na eletriki n'usoro na n'ụzọ okpomọkụ n'otu oge.
Enwere ike iwere modulu oyi nke Thermoelectric, ngwaọrụ Peltier, modulu TEC dị ka ụdị ọkpọkọ ike okpomọkụ siri ike, n'ihi oke ibu ya, nha ya na ọnụego mmeghachi omume ya, ọ dabara nke ọma iji ya dịka akụkụ nke sistemụ oyi dị n'ime ya (n'ihi oke ohere). Site na uru dị ka ọrụ dị jụụ, ihe mgbochi mgbawa, iguzogide ujo, ndụ bara uru ogologo oge na mmezi dị mfe, modulu oyi nke oge a, ngwaọrụ peltier, modulu TEC nwere ọtụtụ ngwa n'ọhịa nke ngwa agha, ụgbọelu, ụgbọelu, ọgwụgwọ ahụike, mgbochi ọrịa, ngwa nnwale, ngwaahịa ndị ahịa (ihe na-ekpo ọkụ mmiri, ihe na-ekpo ọkụ ụgbọ ala, friji ụlọ nkwari akụ, ihe na-ekpo ọkụ mmanya, obere ihe na-ekpo ọkụ nkeonwe, ihe na-ekpo ọkụ na okpomọkụ, wdg).
Taa, n'ihi obere ibu ya, obere nha ma ọ bụ ikike ya, yana ọnụ ala dị ala, a na-ejikarị thermoelectric cooling eme ihe n'ọtụtụ ebe na ọgwụ, ọgwụ, ụgbọelu, aerospace, agha, sistemu spectrocopy, na ngwaahịa azụmaahịa (dịka ihe na-ekesa mmiri ọkụ na oyi, friji obere, ihe na-ekpo ọkụ na-ebugharị ụgbọala na ihe ndị ọzọ).
| Paramita | |
| I | Ọsọ ọrụ na modulu TEC (na Amps) |
| Ikachasị | Ọkụ na-arụ ọrụ nke na-eme ka oke okpomọkụ dị iche △Tkachasị(na Amps) |
| Qc | Oke okpomọkụ enwere ike itinye n'akụkụ oyi nke TEC (na Watts) |
| Qkachasị | Oke okpomọkụ kachasị nke enwere ike ịmịkọrọ n'akụkụ oyi. Nke a na-eme na I = Ikachasịna mgbe Delta T = 0. (na Watts) |
| Tna-ekpo ọkụ | Okpomọkụ nke ihu akụkụ ọkụ mgbe modulu TEC na-arụ ọrụ (na Celsius C) |
| Toyi | Okpomọkụ nke ihu oyi mgbe modulu TEC na-arụ ọrụ (na Celsius C) |
| △T | Ọdịiche dị na okpomọkụ dị n'etiti akụkụ ọkụ (T)h) na akụkụ oyi (T)cDelta T = Th-Tc(na °C) |
| △Tkachasị | Ọdịiche kachasị na okpomọkụ nke modulu TEC nwere ike iru n'etiti akụkụ ọkụ (T)h) na akụkụ oyi (T)c). Ihe ndị a na-eme (Ike oyi kachasị elu) na I = Ikachasịna Qc= 0. (na °C) |
| Ukachasị | Ọnye ọkụ eletrik na I = Ikachasị(na Volts) |
| ε | arụmọrụ nke modulu TEC maka ime ka oyi dị jụụ (%) |
| α | Seebeck nke ihe thermoelectric (V/°C) |
| σ | Ọnụọgụ eletriki nke ihe thermoelectric (1/cm·ohm) |
| κ | Ọgbakọ thermo nke ihe thermoelectric (W/CM·°C) |
| N | Ọnụọgụ nke ihe thermoelectric |
| Iεkachasị | A na-ejikọ ugbu a mgbe akụkụ ọkụ na okpomọkụ akụkụ ochie nke modulu TEC bụ uru akọwapụtara ma ọ chọrọ inweta arụmọrụ kachasị elu (na Amps) |
Okwu Mmalite nke Usoro Ngwa na Modulu TEC
Qc= 2N[α(Tc+273)-LI²/2σS-κs/Lx(Th- Tc)]
△T= [ Iα(Tc+273)-LI/²2σS] / (κS/L + I α]
U = 2 N [ IL /σS +α(Th- Tc)]
ε = Qc/UI
Qh= Qc + IU
△Tkachasị= Th+ 273 + κ/σα² x [1-√2σα²/κx (T)h+273) + 1]
Ikacha =κS/ Lαx [√2σα²/κx (T)h+273) + 1-1]
Iεkacha =ασS (T)h- Tc) / L (√1+0.5σα²(546+ Th- Tc)/ κ-1)
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