Saj zawg zog cua sov yeeb nkab txias tshuab
Raws li cov khoom siv hluav taws xob niaj hnub no thiab lwm cov khoom siv thev naus laus zis tau tsim los ntawm miniaturization, kev kub ceev, kev sib koom ua ke thiab kev siv hluav taws xob tsawg, cov yam ntxwv ntawm cov yeeb nkab cua sov tsis tuaj yeem ua tau raws li nws qhov yuav tsum tau ua, yog li muaj qhov xav tau ceev ceev rau kev siv hluav taws xob hloov hluav taws xob. .
Flexible heat pipe classification:
Cov kav dej hloov tau yooj yim tuaj yeem muab faib ua peb hom raws li cov ntaub ntawv sib txawv ntawm lub plhaub thiab cov raj: hlau hloov tau cov kav dej kub, cov kav dej polymer hloov tau yooj yim thiab cov kav dej sib txuas. Cov hlau hloov pauv cua sov yog feem ntau muab faib ua ob hom, ib qho yog cov hlau muaj nws tus kheej txuas ntxiv kom paub txog cov yam ntxwv hloov tau, thiab lwm qhov yog cov hlau hauv qab yog siv los ua cov khoom sib txuas. Vim tias cov khoom ntawm cov hlau tsis tuaj yeem hloov pauv, lub peev xwm zigzag ntawm cov hlau hloov tau yooj yim ntawm cov yeeb nkab yog tsis zoo. Polymer saj zawg zog cua sov yeeb nkab yog ib tug saj zawg zog kub yeeb nkab nrog zigzag muaj peev xwm siv cov khoom polymer li plhaub. Txawm hais tias lub polymer muaj cov yam ntxwv hloov tau, cov thermal conductivity ntawm hom polymer no tsis zoo, uas ua rau kom cov cua sov hloov ntawm cov yeeb nkab kub thiab txo cov cua sov hloov ntawm cov yeeb nkab cua sov.
Cov kav dej kub sib xyaw tuaj yeem muab faib ua ob pawg. Ib qho yog cov txheej hlau sib xyaw ntawm cov khoom siv polymer, uas tuaj yeem txhim kho lub zog txhua yam, huab cua nruj thiab thermal conductivity ntawm cov khoom sib xyaw. Txawm li cas los xij, thermal conductivity ntawm polymer nws tus kheej tsis zoo. Cov cua sov ntawm qhov kawg ntawm evaporation thiab condensation kawg tseem yuav tsum tau kis los ntawm cov polymer, thiab tag nrho cov thermal conductivity ntawm cov yeeb nkab cua sov yog qhov tsis muaj zog.
Lwm qhov siv cov ntaub ntawv polymer los txuas qhov kawg ntawm evaporation thiab condensation kawg ntawm cov yeeb nkab cua sov. Nyob rau tib lub sijhawm, qhov kawg ntawm evaporation thiab condensation kawg yog ua los ntawm cov ntaub ntawv hlau, uas tuaj yeem tsis tsuas yog txhim kho cov cua sov hloov pauv ntawm cov yeeb nkab uas hloov tau yooj yim, tab sis kuj muaj peev xwm zigzag zoo ntawm cov polymer. Piv txwv li, txoj kev no yog qhov nyuaj hauv kev siv tshuab.
Cov yam ntxwv cuam tshuam rau kev hloov pauv cua sov ntawm cov kav dej hloov pauv hloov tau yooj yim:
1. lub vojvoog ntawm curvature: nws pom tau tias qhov kev hloov ntawm lub vojvoog ntawm curvature nyob rau hauv cov txheej txheem hloov hluav taws xob ntawm cov yeeb nkab uas hloov tau yooj yim muaj qhov cuam tshuam tseem ceeb rau kev ua haujlwm ntawm cov cua sov. Dai Xuan et al. Pom tau tias cov thermal tsis kam thiab lub zog ntawm cov yeeb nkab hloov pauv hloov nrog kev hloov ntawm curvature radius.
2. capillary siab txawv. Lub capillary siab sib txawv ntawm saj zawg zog cov yeeb nkab muaj qhov cuam tshuam tseem ceeb rau nws cov kev ua haujlwm kub hloov pauv. Thaum cov yeeb nkab kub mus txog qhov txwv capillary, vim qhov kub sib txawv ntawm ob qhov kawg ntawm evaporation thiab condensation, capillary quab yuam ntawm lub cev capillary tsis txaus, yog li cov kua condensed tsis tuaj yeem rov qab los. Cov evaporation thiab ziab ntawm cov evaporator ua rau tsis ua haujlwm ntawm cov yeeb nkab cua sov. Yog li ntawd, qhov sib txawv ntawm capillary siab muaj qhov cuam tshuam zoo rau kev hloov pauv ntawm cov cua sov ntawm cov yeeb nkab cua sov.
3. Cov kua filling tus nqi: cov kua filling tus nqi yog hais txog qhov sib piv ntawm qhov ntim ntawm cov kua ntim rau lub ntim ntawm thaj chaw hauv cov qauv capillary uas yuav tsum tau ua rau cov kua ntws. Lub ntsiab lus ntawm lub cev ntawm porosity yog hais txog qhov ntim piv ntawm qhov pore thiab tag nrho hauv lub voj voog capillary. Tom qab ntawd raws li qhov loj ntawm capillary qauv thiab porosity nyob rau hauv cov yeeb nkab cua sov, lub theoretical kua filling peev yog xam. Thaum tus nqi sau qis qis, qhov nruab nrab ua haujlwm tsis txaus, thiab cov cua kub tsis hloov pauv tag nrho los ntawm evaporation mus rau condensation, uas ua rau qhov kub thiab txias sib txawv ntawm ob qho kawg, txhim kho thermal conductivity thiab thermal kuj ntawm cov yeeb nkab kub, thiab cuam tshuam rau nws cov cua sov. hloov kev ua tau zoo. Yog tias cov kua filling ntau dhau lawm, cov kua dej ua haujlwm ntau dhau yuav ua rau cov dej nqus dej hauv thaj chaw evaporation. Thaum cov kua nyob rau hauv lub raj ntws mus rau hauv evaporation seem, lub tshav kub hloov kuj yuav nce.
Cov kav hluav taws xob hloov pauv tau dav siv hauv computer, khoom siv sib txuas lus, cov khoom siv hluav taws xob hluav taws xob kub dissipation, hnub ci zog thiab lwm yam. Software cua sov kav yog tsim nrog ib tug tej yam ntev ntawm software. Thaum ntsia, qhov khoov qib ntawm cov kav dej kub tuaj yeem teeb tsa nyob rau hauv ib lub kaum ntse ntse, thiab ua lub luag haujlwm tseem ceeb hauv kev ntsiag to cua sov dissipation.
