Ukusebenza kokupholisa kwe-thermoelectric

Ubalo lokusebenza kokupholisa nge-thermoelectric:

Ngaphambi kokusebenzisa ukupholisa kwe-thermoelectric, ukuze siqonde ngakumbi ukusebenza kwayo, eneneni, isiphelo esibandayo semodyuli ye-peltier, iimodyuli ze-thermoelectric, zifunxa ubushushu obuvela kwindawo engqongileyo, kukho ezimbini: enye yi-joule heat Qj; enye yi-conduction heat Qk. Umbane udlula ngaphakathi kwento ye-thermoelectric ukuvelisa ubushushu be-joule, isiqingatha sobushushu be-joule sidluliselwa kwisiphelo esibandayo, esinye isiqingatha sidluliselwa kwisiphelo esishushu, kwaye ubushushu be-conduction budluliselwa kwisiphelo esishushu ukuya kwisiphelo esibandayo.

Imveliso ebandayo Qc=Qπ-Qj-Qk

= (2p-2n).Tc.I-1/2j²R-K (Th-Tc)

Apho u-R emele ukuxhathisa okupheleleyo kwesibini kwaye u-K yi-total thermal conductivity.

Ubushushu buphelile kwisiphelo esishushu Qh=Qπ+Qj-Qk

= (2p-2n).Th.I+1/2I²R-K (Th-Tc)

Kuyabonakala kwezi fomula zimbini zingasentla ukuba amandla ombane angenayo ngumahluko phakathi kobushushu obuchithwe sisiphelo esishushu kunye nobushushu obufunxwa sisiphelo esibandayo, oluluhlobo "lwempompo yobushushu":

Qh-Qc=I²R=P

Ukusuka kule fomyula ingentla, kunokugqitywa kwelokuba ubushushu be-Qh obukhutshwa sisibini sombane kwicala elishushu bulingana nesimbuku samandla ombane angenisiweyo kunye nesiphumo esibandayo sesiphelo esibandayo, kwaye ngokuchaseneyo, kunokugqitywa kwelokuba isiphumo esibandayo se-Qc silingana nomahluko phakathi kobushushu obukhutshwa sisiphelo esishushu kunye namandla ombane angenisiweyo.

Qh=P+Qc

Qc=Qh-P

Indlela yokubala amandla okupholisa aphezulu e-thermoelectric

A.1 Xa ubushushu obukwi-Th buyi-27℃±1℃, umahluko wobushushu yi-△T=0, kwaye i-I=Imax.

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

Apho i-N — i-logarithm yesixhobo se-thermoelectric, i-I — umahluko omkhulu wobushushu wangoku wesixhobo (A).

A.2 Ukuba ubushushu bomphezulu oshushu buyi-3 ~ 40℃, amandla okupholisa aphezulu i-Qcmax (W) kufuneka alungiswe ngokwefomula (2).

I-Qcmax = I-Qcmax×[1+0.0042(Th--27)]

(2) Kwifomyula: Qcmax — ubushushu bomphezulu oshushu Th=27℃±1℃ amandla okupholisa aphezulu (W), Qcmax∣Th — ubushushu bomphezulu oshushu Th — amandla okupholisa aphezulu (W) kubushushu obulinganisiweyo ukusuka kwi-3 ukuya kwi-40℃

Inkcazelo ye-TES1-12106T125

Ubushushu obushushu ecaleni bungama-30 C,

Ubungakanani: 6A,

Ubuninzi: 14.6V

Ubuninzi beQ: 50.8 W

Ubuninzi beDelta T: 67 C

I-ACR：2.1±0.1Ohm

Ubungakanani: 48.4X36.2X3.3mm, ubungakanani bomngxuma osembindini: 30X17.8mm

Itywiniwe: Itywiniwe yi-704 RTV (umbala omhlophe)

Ucingo: 20AWG PVC, ukumelana nobushushu obuyi-80℃.

Ubude bentambo: 150mm okanye 250mm

Izinto zombane ezisebenzisa i-thermoelectric: iBismuth Telluride