Kuzizira kwa Thermoelectric

Kuwerengera magwiridwe antchito a Thermoelectric:

Musanagwiritse ntchito kuzirala kwa thermoelectric, kuti mumvetse bwino ntchito yake, kwenikweni, mapeto ozizira a gawo la peltier, ma modules a thermoelectric, amayamwa kutentha kuchokera kumadera ozungulira, pali awiri: imodzi ndi joule kutentha Qj; Wina ndi kutentha kwa conduction Qk. Pakali pano amadutsa mkati mwa thermoelectric element kuti apange kutentha kwa joule, theka la kutentha kwa joule limaperekedwa kumalo ozizira, theka lina limaperekedwa kumapeto kotentha, ndipo kutentha kwa conduction kumaperekedwa kuchokera kumapeto kotentha mpaka kumapeto ozizira.

Kupanga kozizira Qc=Qπ-Qj-Qk

= (2p-2n).Tc.I-1/2j²R-K (Th-Tc)

Kumene R imayimira kukana kwathunthu kwa awiri ndipo K ndiko kutulutsa kwathunthu kwamafuta.

Kutentha kwatha kuchokera kumapeto kotentha Qh=Qπ+Qj-Qk

= (2p-2n).Th.I+1/2I²R-K (Th-Tc)

Zitha kuwoneka kuchokera m'njira ziwiri zomwe zili pamwambazi kuti mphamvu yamagetsi yolowera ndi chimodzimodzi kusiyana pakati pa kutentha komwe kumachokera kumapeto kotentha ndi kutentha komwe kumatengedwa ndi mapeto ozizira, omwe ndi mtundu wa "pampu yotentha" :

Qh-Qc=I²R=P

Kuchokera ku ndondomeko yomwe ili pamwambayi, tinganene kuti kutentha kwa Qh komwe kumatulutsidwa ndi banja lamagetsi kumapeto kotentha kumakhala kofanana ndi kuchuluka kwa mphamvu yamagetsi yolowera ndi kutulutsa kozizira kwa mapeto ozizira, ndipo mosiyana, zikhoza kuganiziridwa kuti kutulutsa kozizira kwa Qc ndikofanana ndi kusiyana pakati pa kutentha komwe kumatulutsidwa ndi mapeto otentha ndi mphamvu yamagetsi yolowera.

Qh=P+Qc

Qc=Qh-P

Njira yowerengera yamphamvu yoziziritsa ya thermoelectric

A.1 Pamene kutentha kumapeto otentha Th ndi 27℃±1℃, kusiyana kutentha ndi △T=0, ndi I=Imax.

Mphamvu yozizira kwambiri Qcmax(W) imawerengedwa molingana ndi chilinganizo (1): Qcmax=0.07NI

Kumene N - logarithm wa thermoelectric chipangizo, I - pazipita kutentha kusiyana panopa chipangizo (A).

A.2 Ngati kutentha kwa malo otentha ndi 3 ~ 40 ℃, mphamvu yozizira kwambiri ya Qcmax (W) iyenera kukonzedwa molingana ndi chilinganizo (2).

Qcmax = Qcmax×[1+0.0042(Th--27)]

(2) Mu chilinganizo: Qcmax - otentha padziko kutentha Th=27℃±1℃ pazipita kuzirala mphamvu (W), Qcmax∣Th - otentha pamwamba kutentha Th - pazipita kuzirala mphamvu (W) pa kutentha kuyeza kuchokera 3 mpaka 40 ℃

Mbiri ya TES1-12106T125

Kutentha kwa mbali yotentha ndi 30 C,

Chithunzi: 6A,

Kuchuluka: 14.6V

Kulemera kwake: 50.8W

Kuchuluka kwa Delta T: 67 C

ACR: 2.1±0.1Ohm

Kukula: 48.4X36.2X3.3mm, kukula kwa dzenje: 30X17.8mm

Kusindikizidwa: Kusindikizidwa ndi 704 RTV (mtundu woyera)

Waya: 20AWG PVC, kutentha kukana 80 ℃.

Waya kutalika: 150mm kapena 250mm

Thermoelectric zinthu: Bismuth Telluride