Yadda za a zabi thermoelectric sanyaya kayayyaki (thermoelectric modules)?

Beijing Huimao Cooling Equipment Co., Ltd. ya ƙaddamar da jerin na'urori masu sanyaya thermoelectric, na'urori masu amfani da wutar lantarki, abubuwan peltier, na'urorin peltier, ciki har da ma'aunin ma'aunin sanyi na ma'aunin zafi da sanyio, na'urori na TEC da na'urori na musamman na thermoelectric, peltier kayayyaki, peltier abubuwa bisa ga abokin ciniki bukatun. Akwai nau'ikan thermoelectric guda ɗaya, na'urorin peltier, na'urori na TEC da kuma na'urori masu sanyaya ma'aunin zafi da sanyio, na'urori masu amfani da wutar lantarki, masu sanyaya peltier kamar matakai biyu, mataki uku zuwa mataki shida. Thermoelectric sanyaya kayayyaki (thermoelectric modules, peltier abubuwa) amfani da thermoelectric sakamakon semiconductor. Lokacin da halin yanzu kai tsaye ya wuce ta thermocouple da aka samar ta hanyar haɗa nau'ikan semiconductor daban-daban guda biyu a jere, ƙarshen sanyi da ƙarshen zafi bi da bi suna sha da sakin zafi, yana mai da su kyakkyawan zaɓi don aikace-aikacen hawan keke. Ba ya buƙatar kowane na'ura mai sanyi, yana iya aiki ci gaba, ba shi da tushen gurɓatacce kuma ba shi da sassa masu juyawa, kuma ba zai haifar da tasirin juyawa ba. Bugu da ƙari, ba shi da sassa masu zamewa, yana aiki ba tare da girgiza ko amo ba, yana da tsawon rayuwar sabis kuma yana da sauƙin shigarwa. Thermoelectric sanyaya kayayyaki, TEC kayayyaki, peltier kayayyaki, thermoelectric modules ana amfani da ko'ina a likita, soja da kuma dakin gwaje-gwaje filayen inda high zafin jiki kula daidaito da kuma AMINCI ake bukata.

Yadda za a zabi nau'in da ya dace shine farkon aikace-aikacen na'urorin thermoelectric, thermoelectric cooling modules, TE modules. Ta hanyar zabar tsarin sanyaya thermoelectric ne kawai za a iya cimma burin sarrafa zafin jiki da ake sa ran. Kafin zabar samfurin Peltier, TEC module, thermoelectric module, dole ne a fara bayyana buƙatun sanyaya, menene maƙasudin abin sanyaya, wane nau'in fasahar sanyaya zaɓi, wane nau'in sarrafa zafi, menene zafin zafin da ake nufi, da nawa za'a iya samar da wutar lantarki. Idan kuna shirin zaɓar na'urorin sanyaya thermoelectric, thermoelectric module, peltier modules, TEC module, peltier abubuwan daga Beijing Huimao Cooling Equipment Co., Ltd., za ku iya ƙayyade samfurin da ake buƙata ta hanyar zaɓuɓɓuka masu zuwa.

1. Ƙimar nauyin zafi

Load ɗin zafi yana nufin adadin zafin da ake buƙatar cirewa don rage zafin yanayin sanyaya zuwa ƙayyadadden matakin a ƙarƙashin wani yanayin zafin jiki, tare da naúrar kasancewa W (watt). Nauyin zafi ya haɗa da kayan aiki masu aiki, kayan aiki marasa ƙarfi, da haɗuwarsu. Matsakaicin zafi mai aiki shine nauyin zafi wanda maƙasudin sanyaya ya haifar da kansa. Nauyin zafi mai wucewa shine nauyin zafi wanda radiation na waje, convection da gudanarwa ke haifarwa. Ƙididdigar ƙididdiga mai aiki

Qactive = V2/R = VI = I2R;

Qactive = Nauyin zafi mai aiki (W);

V = Wutar lantarki da aka yi amfani da shi zuwa maƙasudin firiji (V);

R = Juriya na maƙasudin firiji;

I = A halin yanzu yana gudana ta wurin sanyaya manufa (A)

Nauyin zafi mai haske shine nauyin zafi da ake turawa zuwa ga abin da ake nufi ta hanyar hasken lantarki. Tsarin lissafi:

Qrad = F es A (Tamb4 – Tc4);

Qrad = Radiant Heat Load (W);

F = siffar siffar (mafi girman darajar = 1);

e = fitarwa (ƙimar mafi muni = 1);

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

A = Wurin sanyaya (m ²);

Tamb = Yanayin Zazzabi (K);

Tc = TEC – Cold karshen zafin jiki (K).

Nauyin zafi mai jujjuyawa shine nauyin zafi da ake ɗauka ta dabi'a ta hanyar ruwan da ke wucewa ta saman abin da ake nufi daga waje. Tsarin lissafin shine:

Qconv = hA (Tair - Tc);

Qconv = Load mai zafi (W)

h = Ƙimar canja wurin zafi mai ɗaukar nauyi (W/m ² °C) (ƙimar ƙimar jirgin ruwa a daidaitaccen yanayi ɗaya) = 21.7 W/m ² °C;

A = Wurin saman (m ²);

Tair = Yanayin yanayi (°C);

Tc = Zazzabi mai sanyi (°C);

Nauyin zafi mai ɗaukar nauyi shine nauyin zafi da aka canjawa wuri daga waje ta hanyar abubuwan tuntuɓar da ke saman abin da ake nufi. Tsarin lissafin shine:

Qcond = k A DT/L;

Qcond = Canja wurin zafi mai zafi (W);

k = Ƙarfafawar thermal na kayan aiki na thermal (W / m ° C);

A = Wurin giciye na kayan aikin thermal (m ²);

L = Tsawon hanyar tafiyar da zafi (m)

DT = Bambancin yanayin zafi na hanyar tafiyar da zafi (°C) (yawanci ana magana ne akan yanayin yanayi ko zafin zafin zafi ya rage zafin ƙarshen sanyi.)

Don haɗuwa da nauyin zafi na convection da gudanarwa, tsarin lissafin shine:

Q m = (A x DT)/(x/k + 1/h);

Qpassive = Zafi (W);

A = Jimlar saman harsashi (m2);

x = Kauri na rufin rufin (m)

K = Kasancewa na Tsarin Haske (W / M ° C);

h = Matsakaicin canja wurin zafi (W/m ² °C)

DT = Bambancin yanayin zafi (°C).

2. Yi lissafin jimlar nauyin zafi

Ta hanyar mataki na farko, zamu iya ƙididdige jimlar nauyin zafi na maƙasudin firiji.

A ce a cikin ainihin aikin, nauyin zafi mai aiki shine 8W, nauyin zafi mai haske shine 0.2W, nauyin zafi mai zafi shine 0.8W, nauyin zafi mai zafi shine 0W, kuma jimlar zafi shine 9W.

3. Ƙayyadadden zafin jiki

Ƙayyade zafin ƙarshen zafi, zafin ƙarshen sanyi da bambancin zafin firiji na takardar firiji. A ce a cikin ainihin aikin, yanayin zafin jiki shine 27 ° C, yanayin sanyi mai sanyi shine -8 ° C, da bambancin zafin jiki DT = 35 ° C.

Tsammanin cewa jimlar nauyin zafi na maƙasudin sanyaya an kiyasta 9W bisa ƙiyasin baya, ana iya samun mafi kyawun Qmax azaman 9/0.25=36W, kuma matsakaicin Qmax kamar 9/0.45=20. Bincika kasidar samfurin na Beijing Huimao Cooling Equipment Co., Ltd don na'urori masu sanyaya wutar lantarki, peltier modules, peltier na'urorin, abubuwan peltier.TEC modules kuma nemo samfuran tare da Qmax daga 20 zuwa 36.