Passive saltwater heatsink, nce CPU kev ua tau zoo los ntawm kwv yees li 33%
Nrog rau qhov kev thov ntau ntxiv rau kev ua haujlwm siab hauv hluav taws xob thiab kev sib txuas lus thev naus laus zis thiab kev txo qis ntawm cov khoom siv hluav taws xob tsis tu ncua, lub zog ntom ntom ntawm cov khoom siv hluav taws xob txuas ntxiv nce ntxiv. Qhov no ua rau cov kev xav tau siab dua rau kev tswj xyuas thermal ntawm cov khoom siv hluav taws xob. Passive thermal tswj thev naus laus zis tau nyiam qhov kev txaus siab ntau ntxiv vim nws qhov kev siv hluav taws xob xoom, kev cog lus ntau dua, thiab cov nqi kho qis dua.
Cov txheej txheem cua txias rau CPUs suav nrog tsis yog tsuas yog cua txias xwb, tab sis kuj yog dej txias, PCM txias, thiab thermoelectric (TEC) txias. Novel passive cooling systems, xws li cov raws li adsorption evaporation, tuaj yeem ua lub luag haujlwm tseem ceeb hauv kev tswj cov cua sov los ntawm kev muab cov roj-theem cua sov hloov mus. Cov kws tshawb fawb tab tom tshawb nrhiav yuav ua li cas txhawm rau txhim kho cov txheej txheem adsorption txhawm rau txhim kho kev ua kom txias thiab kev ua haujlwm thermal tag nrho ntawm cov tshuab computer.
Tsis ntev los no, kev siv thev naus laus zis thev naus laus zis raws li cov txheej txheem evaporation ntawm cov dej hauv cov kua ntsev hygroscopic tau raug sim thiab pom tias muaj txiaj ntsig zoo rau qhov kub thiab txias ntawm cov khoom siv hluav taws xob. Siv cov dej decomposition thiab nqus cov txheej txheem nyob rau hauv tus nqi qis hygroscopic ntsev tov kom tshem tawm cov cua sov uas tsim los ntawm kev ua haujlwm ntawm cov khoom siv hluav taws xob, txhawm rau tiv thaiv overheating ntawm cov khoom hluav taws xob. Qhov tseem ceeb, qhov kev siv thev naus laus zis no tuaj yeem rov ua kom lub peev xwm txias ntawm cov khoom siv hluav taws xob hauv lub sijhawm tsis ua haujlwm (lossis tawm lub sijhawm siab tshaj). Cov kev sim tau pom tias cov cuab yeej no tuaj yeem muab qhov ua kom txias txias ntawm kwv yees li 400 feeb (Δ Tmax=11.5 degree C), nrog rau kev sim ntsuas kub txog li 75 kW / m2. Kev siv cov thev naus laus zis no rau cov khoom siv suav nrog tuaj yeem txhim kho kev ua haujlwm ntawm 32.65%.
Lithium bromide yog daig rau hauv ib lub porous membrane uas tsuas yog tso cai rau cov dej vapor mus rau hauv, thiab sandwiched ntawm hlau daim hlau los tiv thaiv kev sib cuag ntawm cov ntsev tov thiab hluav taws xob, thaum ib tug hlau radiator yuav zoo dissipate tshav kub rau sab nraud ib puag ncig.
Lub tshuab ua kom txias txias tuaj yeem muab faib ua ob theem ua haujlwm: desorption txias txheej txheem thiab kev nqus rov tsim dua tshiab. Ua ntej, cov txheej txheem txias tshem tawm cov cua sov los ntawm evaporating dej los ntawm lithium bromide ntsev tov. Tom qab ntawd, lub kaw lus nkag mus rau hauv cov txheej txheem nqus rov ua dua tshiab, qhov twg muaj cov ntsev ntsev ntau ntxiv absorbs noo noo los ntawm cov huab cua ib puag ncig thiab rov ua kom nws lub peev xwm txias.
Piv nrog rau cov khoom siv hluav taws xob sib xyaw ua ke, cov cuab yeej no tuaj yeem ua kom txias lub processor kom qis dua 64 degree rau li 400 feeb, uas yog 10 npaug zoo dua li cov khoom siv hlau zoo tshaj plaws (MOF) thiab ua tiav cov cuab yeej ua haujlwm tau zoo los ntawm 32.65%.
