Kushanda kwekutonhodza kweThermoelectric

Kuverenga mashandiro ekutonhodza kweThermoelectric:

Usati washandisa thermoelectric cooling, kuti unzwisise mashandiro ayo, kutaura chokwadi, magumo anotonhora epeltier module, thermoelectric modules, anotora kupisa kubva kumativi akapoteredza, pane maviri: rimwe ndiro joule heat Qj; Rimwe ndiro conduction heat Qk. Current inopfuura nepakati pechinhu chethermoelectric kuti ibudise joule heat, hafu yejoule heat inotumirwa kumagumo anotonhora, imwe hafu inotumirwa kumagumo anopisa, uye conduction heat inotumirwa kubva kumagumo anopisa kuenda kumagumo anotonhora.

Kugadzirwa kwechando Qc=Qπ-Qj-Qk

= (2p-2n).Tc.I-1/2j²R-K (Th-Tc)

Apo R inomiririra kuramba kwese kwepair uye K inomiririra kutenderera kwese kwekupisa.

Kupisa kwapera kubva pakupisa Qh=Qπ+Qj-Qk

= (2p-2n).Th.I+1/2I²R-K (Th-Tc)

Zvinogona kuonekwa kubva mumafomura maviri ari pamusoro apa kuti simba remagetsi rinopinda ndiro musiyano chaiwo pakati pekupisa kunobviswa nemugumo unopisa nekupisa kunotorwa nemugumo unotonhora, inova rudzi rwe "heat pombi":

Qh-Qc=I²R=P

Kubva pafomura iri pamusoro apa, zvinogona kugumiswa kuti kupisa Qh kunoburitswa nemagetsi maviri pamucheto unopisa kwakaenzana nehuwandu hwesimba remagetsi rinopinda uye kutonhora kunobuda kwemugumo unopisa, uye zvakasiyana, zvinogona kugumiswa kuti kutonhora kunobuda Qc kwakaenzana nemusiyano uripo pakati pekupisa kunoburitswa nemugumo unopisa nesimba remagetsi rinopinda.

Qh=P+Qc

Qc=Qh-P

Nzira yekuverenga simba guru rekutonhodza rethermoelectric

A.1 Kana tembiricha iri pamucheto wekupisa weTh iri 27℃±1℃, musiyano wetembiricha ndewe △T=0, uye I=Imax.

Simba guru rekutonhodza Qcmax(W) rinoverengerwa zvichienderana nefomura (1): Qcmax=0.07NI

Apo N — logarithm yechinhu chinodziya moto, I — musiyano wekupisa kwakanyanya kwemuchina (A).

A.2 Kana tembiricha yenzvimbo inopisa iri 3~40℃, simba guru rekutonhodza Qcmax (W) rinofanira kugadziriswa zvichienderana nefomula (2).

Qcmax = Qcmax×[1+0.0042(Th--27)]

(2) Mufomura: Qcmax — kupisa pamusoro pemvura Th=27℃±1℃ simba guru rekutonhodza (W), Qcmax∣Th — kupisa pamusoro pemvura Th — simba guru rekutonhodza (W) patembiricha yakayerwa kubva pa3 kusvika pa40℃

Tsanangudzo yeTES1-12106T125

Tembiricha inopisa yedivi ndeye 30 C,

Mufananidzo: 6A,

Simba guru: 14.6V

QMax: 50.8 W

Kupisa kwakanyanya kweDelta T: 67 C

ACR：2.1±0.1Ohm

Saizi: 48.4X36.2X3.3mm, saizi yegomba repakati: 30X17.8mm

Yakavharwa: Yakavharwa ne704 RTV (ruvara ruchena)

Waya: 20AWG PVC, kuramba tembiricha 80℃.

Kureba kwewaya: 150mm kana 250mm

Zvinhu zveThermoelectric: Bismuth Telluride