Indlela yokukhetha iimodyuli zokupholisa i-thermoelectric (iimodyuli ze-thermoelectric)?

I-Beijing Huimao Cooling Equipment Co., Ltd. iye yasungula uluhlu lweemodyuli zokupholisa ze-thermoelectric, iimodyuli ze-thermoelectric, izinto ze-peltier, izixhobo ze-peltier, kuquka i-batch standard thermoelectric cooling modules, iimodyuli ze-TEC kunye neemodyuli ezikhethekileyo ze-thermoelectric, iimodyuli ze-peltier, izinto ze-peltier ngokweemfuno zabathengi. Kukho iimodyuli zenqanaba elinye le-thermoelectric, izixhobo ze-peltier, iimodyuli zeTEC kunye neemodyuli zokupholisa ze-thermoelectric ezinamanqanaba amaninzi, iimodyuli zombane we-thermoelectric, i-peltier coolers ezifana nezigaba ezibini, izigaba ezintathu ukuya kwisigaba esithandathu. Iimodyuli zokupholisa ze-Thermoelectric (iimodyuli ze-thermoelectric, izinto ze-peltier) zisebenzisa i-thermoelectric effect yee-semiconductors. Xa umsinga othe ngqo udlula kwi-thermocouple eyenziwe ngokudibanisa izinto ezimbini ezahlukeneyo ze-semiconductor kuthotho, isiphelo esibandayo kunye nesiphelo esishushu ngokulandelelanayo sifunxa kwaye sikhulule ubushushu, sibenze lube lolona khetho lufanelekileyo kwizicelo zokukhwela ibhayisekile. Ayifuni nayiphi na ifriji, inokusebenza ngokuqhubekayo, ayinayo umthombo wongcoliseko kwaye akukho nxalenye ejikelezayo, kwaye ayiyi kuvelisa umphumo ojikelezayo. Ukongezelela, ayinayo iinxalenye ze-sliding, isebenza ngaphandle kokungcangcazela okanye ingxolo, inobomi obude benkonzo kwaye kulula ukuyifaka. Iimodyuli zokupholisa i-Thermoelectric, iimodyuli ze-TEC, iimodyuli ze-peltier, iimodyuli ze-thermoelectric zisetyenziswa ngokubanzi kwiinkalo zonyango, umkhosi kunye nebhubhoratri apho ukuchaneka kokulawula ukushisa okuphezulu kunye nokuthembeka kuyadingeka.

Indlela yokukhetha uhlobo olufanelekileyo kukuqala kokusetyenziswa kweemodyuli ze-thermoelectric, iimodyuli zokupholisa i-thermoelectric, iimodyuli ze-TE. Kuphela ngokukhetha imodyuli yokupholisa i-thermoelectric inokufezekiswa injongo yokulawula ubushushu obulindelekileyo. Ngaphambi kokukhetha imodyuli yePeltier, imodyuli ye-TEC, imodyuli ye-thermoelectric, kuyimfuneko ukucacisa kuqala iimfuno zokupholisa, yintoni into ekujoliswe kuyo yokupholisa, luhlobo luni lweteknoloji yokupholisa ukukhetha, luhlobo luni lwendlela yokuqhuba ubushushu, yintoni iqondo lokushisa elijoliswe kuyo, kwaye ungakanani amandla anokunikezelwa. Ukuba uceba ukukhetha iimodyuli zokupholisa i-thermoelectric, imodyuli ye-thermoelectric, iimodyuli ze-peltier, imodyuli ye-TEC, izinto ze-peltier ezivela eBeijing Huimao Cooling Equipment Co., Ltd., unokumisela imodeli efunekayo ngokusebenzisa amanyathelo okukhetha alandelayo.

1. Qikelela umthwalo wobushushu

Umthwalo wobushushu ubhekisa kubungakanani bobushushu obufuna ukususwa ukuthoba ubushushu benjongo yokupholisa ukuya kwinqanaba elichaziweyo phantsi kommandla othile wobushushu, kunye neyunithi eyiW (watt). Imithwalo yokushisa ibandakanya ikakhulu imithwalo esebenzayo, imithwalo ye-passive, kunye nokudibanisa kwabo. Umthwalo wokushisa osebenzayo ngumthwalo wokushisa owenziwe yinjongo yokupholisa ngokwayo. Umthwalo wobushushu owenziweyo ngumthwalo wobushushu obangelwa yimisebe yangaphandle, ukuhanjiswa kunye nokuqhuba. Ifomula yokubala yomthwalo osebenzayo

Qactive = V2/R = VI = I2R;

Qactive = Umthwalo wobushushu osebenzayo (W);

V = Umbane osetyenzisiweyo kwithagethi yefriji (V);

R = Ukumelana nejoliso yefriji;

I = Ngoku equkuqelayo kwithagethi epholileyo (A)

Umthwalo wobushushu obukhazimlayo ngumthwalo wobushushu ogqithiselwe kwinto ekujoliswe kuyo ngemitha yemagnethi yombane. Ifomula yokubala:

Qrad = F es A (Tamb4 – Tc4);

Qrad = Umthwalo wobushushu obushushu (W);

F = into yokuma (ixabiso elibi kakhulu = 1);

e = emissivity (ixabiso elibi kakhulu = 1);

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

A = Indawo yokupholisa (m ²);

I-Tamb = Ubushushu be-Ambient (K);

Tc = TEC – Ubushushu besiphelo esibandayo (K).

Umthwalo wobushushu obuguquguqukayo ngumthwalo wobushushu odluliselwe ngokwemvelo ngulwelo oludlula kumphezulu wento ekujoliswe kuyo ukusuka ngaphandle. Ifomula yokubala yile:

Qconv = hA (Tair – Tc);

Qconv = Umthwalo wobushushu obuguqukayo (W)

h = i-coefficient yokudlulisa ubushushu obuhambisayo (W/m ² °C) (ixabiso eliqhelekileyo lenqwelomoya yamanzi kwindawo enye esemgangathweni) = 21.7 W/m ² °C;

A = Indawo engaphezulu (m ²);

Tair = Ubushushu be-Ambient (°C);

Tc = Ubushushu bokuphela kwengqele (°C);

Umthwalo wokushisa ohambisayo ngumthwalo wobushushu odluliselwe ngaphandle ngaphandle kwezinto zoqhagamshelwano kumphezulu wento ekujoliswe kuyo. Ifomula yokubala yile:

Qcond =k A DT/L;

Qcond = Umthwalo wokushisa ogqithisiweyo (W);

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

A = Indawo enqamlezileyo yemathiriyeli ye-thermal conductive (m²);

L = Ubude bendlela yokuqhuba ubushushu (m)

DT = Umahluko wobushushu bendlela yokuqhuba ubushushu (°C) (idla ngokubhekisa kwiqondo lobushushu elihlala kwindawo okanye kwidinki yobushushu kuthatyathwe iqondo elibandayo lesiphelo.)

Kumthwalo wobushushu odibeneyo wokuhambisa kunye nokuqhuba, ifomyula yokubala yile:

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

Qpassive = Ubushushu bomthwalo (W);

A = Ummandla opheleleyo womphezulu weqokobhe (m2);

x = Ukutyeba komgangatho wokugquma (m)

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

h = i-coefficient yokudluliselwa kobushushu (W/m² °C)

DT = Umahluko wobushushu (°C).

2. Bala ubushushu obupheleleyo

Ngesinyathelo sokuqala, sinokubala umthamo wokushisa opheleleyo wenjongo yefriji.

Masithi kwiprojekthi yangempela, umthwalo wokushisa osebenzayo ngu-8W, umthwalo wokushisa ovuthayo ngu-0.2W, umthwalo we-convective heat ngu-0.8W, umthwalo wokushisa osebenzayo ngu-0W, kunye nobushushu obupheleleyo ngu-9W.

3. Chaza ubushushu

Chaza iqondo lokushisa elitshisayo, iqondo lokushisa elibandayo kunye nokwahlukana kobushushu befriji yeshiti lesikhenkcisi. Masithi kweyona projekthi, iqondo lobushushu le-ambiente yi-27°C, iqondo lokupholisa ekujoliswe kulo ngu-8°C, kunye nokwahluka kobushushu bokupholisa DT=35°C.

Ukucinga ukuba ubushushu obupheleleyo bethagethi yokupholisa kuqikelelwa ukuba yi-9W ngokusekelwe kuqikelelo lwangaphambili, i-Qmax efanelekileyo inokufumaneka njenge-9 / 0.25 = 36W, kunye ne-Qmax ephezulu njenge-9 / 0.45 = 20. Khangela ikhathalogu yemveliso yeBeijing Huimao Equipment Equipment Co.,Ltd yeemodyuli zokupholisa zombane, iimodyuli zepeltier, izixhobo zepeltier, iimodyuli zepeltier.TEC iimodyuli kwaye ufumane iimveliso ngeQmax ukusuka kwi-20 ukuya kwi-36.