Ukusebenza kokupholisa kwe-Thermoelectric

Isibalo sokusebenza kokupholisa kwe-Thermoelectric:

Ngaphambi kokufaka ukupholisa kwe-thermoelectric, ukuqonda okwengeziwe ukusebenza kwayo, empeleni, ukuphela okubandayo kwemodyuli ye-peltier, amamojula we-thermoelectric, imunca ukushisa okuvela endaweni ezungezile, kukhona okubili: eyodwa ukushisa kwe-joule Qj; Okunye ukushisa kwe-conduction Qk. I-current idlula ngaphakathi kwesici se-thermoelectric ukukhiqiza ukushisa kwe-joule, isigamu sokushisa kwe-joule sidluliselwa ekugcineni okubandayo, enye ingxenye idluliselwa ekugcineni okushisayo, futhi ukushisa kwe-conduction kudluliselwa kusukela ekugcineni okushisayo kuya ekugcineni okubandayo.

Ukukhiqiza okubandayo Qc=Qπ-Qj-Qk

= (2p-2n).Tc.I-1/2j²R-K (Th-Tc)

Lapho u-R emelela ukumelana okuphelele kwepheya kanye no-K ingqikithi ye-thermal conductivity.

Ukushisa kuqedwe ekugcineni okushisayo Qh=Qπ+Qj-Qk

= (2p-2n).Th.I+1/2I²R-K (Th-Tc)

Kungabonakala kulawa mafomula amabili angenhla ukuthi amandla kagesi okufakwayo angumehluko ncamashi phakathi kokushisa okuchithwe isiphetho esishisayo nokushisa okumuncwa isiphetho esibandayo, okuwuhlobo “lwephampu yokushisa” :

Qh-Qc=I²R=P

Kusukela kufomula engenhla, kungaphetha ngokuthi ukushisa kwe-Qh okukhishwa umbhangqwana kagesi ekugcineni okushisayo kufana nesamba samandla kagesi okufakwayo kanye nokukhishwa okubandayo kokuphela okubandayo, futhi ngokuphambene, kungaphetha ngokuthi ukuphuma okubandayo kwe-Qc kufana nomehluko phakathi kokushisa okukhishwa ekupheleni okushisayo namandla kagesi okufakwayo.

Qh=P+Qc

Qc=Qh-P

Indlela yokubala yamandla okupholisa aphezulu we-thermoelectric

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

Amandla amakhulu okupholisa i-Qcmax(W) abalwa ngokwefomula (1) : Qcmax=0.07NI

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

A.2 Uma izinga lokushisa lendawo eshisayo liyi-3~40℃, amandla amakhulu okupholisa i-Qcmax (W) kufanele alungiswe ngokuya ngefomula (2).

Qcmax = Qcmax×[1+0.0042(Th--27)]

(2) Efomini: Qcmax — izinga lokushisa elishisayo lendawo engu-Th=27℃±1℃ amandla okupholisa aphezulu (W), Qcmax∣Th — izinga lokushisa elishisayo lendawo Th — amandla okupholisa aphezulu (W) ezingeni lokushisa elilinganiselwe ukusuka ku-3 ukuya ku-40℃

Imifanekiso ye-TES1-12106T125

Izinga lokushisa ohlangothini olushisayo ngu-30 C,

Isilinganiso: 6A,

Ubukhulu: 14.6V

Ubukhulu:50.8 W

Ubukhulu be-Delta T: 67 C

I-ACR:2.1±0.1Ohm

Usayizi: 48.4X36.2X3.3mm, usayizi womgodi ophakathi: 30X17.8mm

Kuvalwe: Kuvalwe nge-704 RTV (umbala omhlophe)

Wire: 20AWG PVC, izinga lokushisa ukumelana 80 ℃.

Ubude bentambo: 150mm noma 250mm

Impahla ye-Thermoelectric: Bismuth Telluride