Ungawakhetha kanjani amamojula wokupholisa we-thermoelectric (amamojula we-thermoelectric)?

I-Beijing Huimao Cooling Equipment Co., Ltd. yethule uchungechunge lwamamojula okupholisa ashisayo, amamojula we-thermoelectric, izakhi ze-peltier, amadivaysi e-peltier, okuhlanganisa amamojula okupholisa ajwayelekile e-thermoelectric, amamojula e-TEC kanye namamojula akhethekile we-thermoelectric, amamojula we-peltier, izakhi ze-peltier ngokwezidingo zamakhasimende. Kunamamojula we-thermoelectric esiteji esisodwa, amadivaysi e-peltier, amamojula e-TEC kanye namamojula wokupholisa we-thermoelectric enezigaba eziningi, amamojula kagesi we-thermoelectric, ama-peltier cooler afana nezigaba ezimbili, izigaba ezintathu ukuya kwesithupha. Amamojula wokupholisa we-Thermoelectric (amamojula we-thermoelectric, izakhi ze-peltier) asebenzisa umphumela we-thermoelectric wama-semiconductors. Uma i-direct current idlula ku-thermocouple eyakhiwe ngokuxhuma izinto ezimbili ezihlukene ze-semiconductor ochungechungeni, isiphetho esibandayo nesiphetho esishisayo ngokulandelana kudonsa futhi kukhulule ukushisa, okukwenze kube ukukhetha okufanelekile kwezinhlelo zokusebenza zamabhayisikili okushisa. Ayidingi noma yisiphi isiqandisi, ingasebenza ngokuqhubekayo, ayinawo umthombo wokungcola futhi ayinazo izingxenye ezijikelezayo, futhi ngeke ikhiqize umphumela wokujikeleza. Ngaphezu kwalokho, ayinazo izingxenye ezishelelayo, isebenza ngaphandle kokudlidliza noma umsindo, inempilo ende yesevisi futhi kulula ukuyifaka. Amamojula wokupholisa we-Thermoelectric, amamojula we-TEC, amamojula we-peltier, amamojula we-thermoelectric asetshenziswa kakhulu emikhakheni yezokwelapha, ezempi kanye nelabhorethri lapho kudingeka khona ukulawula izinga lokushisa eliphezulu nokwethembeka.

Indlela yokukhetha uhlobo olulungile kuyisiqalo sokusetshenziswa kwamamojula we-thermoelectric, amamojula wokupholisa we-thermoelectric, amamojula we-TE. Ngokukhetha kuphela imojuli yokupholisa i-thermoelectric lapho umgomo olindelekile wokulawula izinga lokushisa ungafinyelelwa. Ngaphambi kokukhetha i-module ye-Peltier, i-module ye-TEC, i-module ye-thermoelectric, kuyadingeka ukucacisa kuqala izidingo zokupholisa, ukuthi yini into ehlosiwe yokupholisa, uhlobo luni lobuchwepheshe bokupholisa ongalukhetha, uhlobo luni lwendlela yokushisa ukushisa, ukuthi izinga lokushisa elihlosiwe liyini, nokuthi mangakanani amandla anganikezwa. Uma uhlela ukukhetha amamojula okupholisa ashisayo, imojula ye-thermoelectric, amamojula we-peltier, imojula ye-TEC, izakhi ze-peltier ezivela e-Beijing Huimao Cooling Equipment Co., Ltd., ungakwazi ukunquma imodeli edingekayo ngokusebenzisa izinyathelo zokukhetha ezilandelayo.

1. Linganisa umthwalo wokushisa

Umthwalo wokushisa ubhekisela enanini lokushisa okudingeka lisuswe ukuze kwehliswe izinga lokushisa lethagethi yokupholisa libe sezingeni elishiwo ngaphansi kwendawo ethile yezinga lokushisa, iyunithi ibe ngu-W (watt). Imithwalo yokushisa ihlanganisa ikakhulukazi imithwalo esebenzayo, imithwalo ye-passive, nezinhlanganisela zayo. Umthwalo wokushisa osebenzayo umthwalo wokushisa okhiqizwa ithagethi yokupholisa ngokwayo. I-Passive heat load umthwalo wokushisa obangelwa imisebe yangaphandle, i-convection kanye nokuhanjiswa. Ifomula yokubala yokulayisha esebenzayo

Qactive = V2/R = VI = I2R;

Qactive = Umthwalo wokushisa osebenzayo (W);

V = I-voltage esetshenziswa ekuhlosweni kwesiqandisi (V);

R = Ukumelana nenhloso yesiqandisi;

I = Okwamanje kugeleza kuthagethi epholile (A)

Ukushisa okukhazimulayo umthwalo wokushisa odluliselwa entweni eqondiwe ngemisebe kazibuthe. Ifomula yokubala:

I-Qrad = F es A (Tamb4 – Tc4);

I-Qrad = Umthwalo wokushisa okukhazimulayo (W);

F = isici somumo (inani elibi kakhulu = 1);

e = ukukhishwa kwegesi (inani elibi kakhulu = 1);

s = Stefan-Boltzmann njalo (5.667 X 10-8W/m ² k4);

A = Indawo epholile (m ²);

I-Tamb = I-Ambient Temperature (K);

Tc = TEC – Izinga lokushisa elibandayo (K).

I-convective heat load umthwalo wokushisa odluliswa ngokwemvelo uketshezi oludlula endaweni eqondiwe kusuka ngaphandle. Ifomula yokubala ithi:

Qconv = hA (Tair – Tc);

Qconv = Umthwalo wokushisa oguqukayo (W)

h = I-coefficient yokudlulisa ukushisa okuguquguqukayo (W/m ² °C) (inani elivamile lendiza yamanzi endaweni eyodwa evamile) = 21.7 W/m ² °C;

A = Indawo engaphezulu (m ²);

I-Tair = Izinga lokushisa le-ambient (°C);

Tc = Ukushisa kokugcina okubandayo (°C);

I-conductive heat load umthwalo wokushisa odluliswa usuka ngaphandle ngezinto ezithintwayo endaweni eqondiwe. Ifomula yokubala ithi:

Qcond =k A DT/L;

Qcond = Umthwalo wokushisa odlulisiwe (W);

k = I-Thermal conductivity ye-thermal conductive material (W/m °C);

A = Indawo ephambanayo yezinto ezibamba ukushisa ezishisayo (m²);

L = Ubude bendlela yokuqhuba ukushisa (m)

DT = Umehluko wezinga lokushisa wendlela yokusingatha ukushisa (°C) (ngokuvamile ibhekisela kuzinga lokushisa elizungezile noma izinga lokushisa likasinki wokushisa kususwe izinga lokushisa elibandayo ekugcineni.)

Ngomthwalo wokushisa ohlanganisiwe we-convection kanye ne-convection, ifomula yokubala ithi:

U-Q wenza = (A x DT)/(x/k + 1/h);

I-Qpassive = Umthwalo wokushisa (W);

A = Indawo ephelele yegobolondo (m2);

x = Ukuqina kwesendlalelo sokufakelwa (m)

k = Insulation conductivity thermal (W/m °C);

h = I-coefficient yokudlulisa ukushisa okuguquguqukayo (W/m ² °C)

DT = Umehluko wezinga lokushisa (°C).

2. Bala inani lokushisa eliphelele

Ngesinyathelo sokuqala, singakwazi ukubala umthamo ophelele wokushisa wethagethi yesiqandisi.

Ake sithi kuphrojekthi yangempela, umthwalo wokushisa osebenzayo ngu-8W, umthwalo wokushisa okhazimulayo ngu-0.2W, umthwalo wokushisa oguqukayo ngu-0.8W, umthwalo wokushisa osebenzayo ngu-0W, futhi isamba sokushisa singu-9W.

3. Chaza izinga lokushisa

Chaza izinga lokushisa lokugcina elishisayo, izinga lokushisa elibandayo kanye nomehluko wokushisa wesiqandisi weshidi lesiqandisi. Ake sithi kuphrojekthi yangempela, izinga lokushisa le-ambient lingu-27°C, izinga lokushisa elipholiswayo lingu-8°C, kanye nomehluko wokupholisa we-DT=35°C

Ngokucabangela ukuthi isamba sokushisa komthwalo wethagethi yokupholisa silinganiselwa ku-9W ngokusekelwe esilinganisweni sangaphambilini, i-Qmax elungile ingatholwa njengo-9/0.25=36W, kanye ne-Qmax ephezulu njengo-9/0.45=20. Sesha ikhathalogi yomkhiqizo we-Beijing Huimao Cooling Equipment Co., Ltd ukuze uthole amamojula okupholisa ugesi oshisayo, amamojula we-peltier, amadivaysi e-peltier, ama-peltier elements.Amamojula we-TEC futhi uthole imikhiqizo ene-Qmax esukela ku-20 kuya ku-36.