Ukusebenza kokupholisa kwe-thermoelectric

Ukubalwa kokusebenza kokupholisa kwe-thermoelectric:

Ngaphambi kokusebenzisa ukupholisa kwe-thermoelectric, ukuze kuqondwe kabanzi ukusebenza kwayo, empeleni, ukuphela okubandayo kwe-peltier module, amamojula we-thermoelectric, amunca ukushisa okuvela endaweni ezungezile, kunezinto ezimbili: eyodwa i-joule heat Qj; Enye i-conduction heat Qk. Ugesi udlula ngaphakathi kwe-thermoelectric element ukuze ukhiqize ukushisa kwe-joule, ingxenye yokushisa kwe-joule idluliselwa ekugcineni okubandayo, enye ingxenye idluliselwa ekugcineni okushisayo, kanti ukushisa kokuqhuba kudluliswa kusukela ekugcineni okushisayo kuye ekugcineni okubandayo.

Ukukhiqizwa okubandayo Qc=Qπ-Qj-Qk

= (2p-2n).Tc.I-1/2j²R-K (Th-Tc)

Lapho u-R emele ukumelana okuphelele kwepheya kanye no-K kuwukuqhutshwa kokushisa okuphelele.

Ukushisa kuphelile kusukela ekugcineni okushisayo Qh=Qπ+Qj-Qk

= (2p-2n).Th.I+1/2I²R-K (Th-Tc)

Kungabonakala kumafomula amabili angenhla ukuthi amandla kagesi okufakwayo ahlukile impela phakathi kokushisa okuqedwe yisiphetho esishisayo nokushisa okumuncwa yisiphetho esibandayo, okuwuhlobo "lwephampu yokushisa":

Qh-Qc=I²R=P

Kusukela kufomula engenhla, kungaphethwa ngokuthi ukushisa kwe-Qh okukhishwe umbhangqwana kagesi ekugcineni okushisayo kufana nesamba samandla kagesi okufakwayo kanye nomphumela obandayo wesiphelo esibandayo, futhi ngokuphambene nalokho, kungaphethwa ngokuthi umphumela obandayo we-Qc ufana nomehluko phakathi kokushisa okukhishwe ukuphela okushisayo kanye namandla kagesi okufakwayo.

Qh=P+Qc

Qc=Qh-P

Indlela yokubala yamandla aphezulu okupholisa e-thermoelectric

A.1 Uma izinga lokushisa ekugcineni okushisayo i-Th lingu-27℃±1℃, umehluko wokushisa u-△T=0, kanye ne-I=Imax.

Amandla okupholisa aphezulu kakhulu i-Qcmax(W) ibalwa ngokwefomula (1): Qcmax=0.07NI

Lapho i-N — i-logarithm yedivayisi ye-thermoelectric, i-I — umehluko omkhulu wokushisa wamanje wedivayisi (A).

A.2 Uma izinga lokushisa lobuso obushisayo lingu-3~40℃, amandla okupholisa aphezulu kakhulu i-Qcmax (W) kufanele alungiswe ngokwefomula (2).

I-Qcmax = I-Qcmax×[1+0.0042(Th--27)]

(2) Kule fomula: Qcmax — izinga lokushisa lobuso obushisayo Th=27℃±1℃ amandla okupholisa aphezulu (W), Qcmax∣Th — izinga lokushisa lobuso obushisayo Th — amandla okupholisa aphezulu (W) ekushiseni okulinganisiwe kusuka ku-3 kuya ku-40℃

Imininingwane ye-TES1-12106T125

Izinga lokushisa elishisayo eliseceleni lingu-30 C,

Isilinganiso: 6A,

Ubukhulu: 14.6V

I-QMax: 50.8 W

Ubukhulu be-Delta T: 67 C

I-ACR：2.1±0.1Ohm

Usayizi: 48.4X36.2X3.3mm, usayizi wembobo ephakathi: 30X17.8mm

Ivaliwe: Ivaliwe yi-704 RTV (umbala omhlophe)

Intambo: 20AWG PVC, ukumelana nokushisa okungu-80℃.

Ubude bentambo: 150mm noma 250mm

Izinto ze-thermoelectric: i-Bismuth Telluride