Dab tsi yog theem hloov pauv?

Theem Hloov Hloov Hloov (PCMS) yog hom tshwj xeeb uas tuaj yeem nqus lossis tso tawm ntau qhov kev hloov pauv ntawm lub cev, xws li los ntawm cov khoom ua kua lossis rov ua dua. Cov cuab yeej no ua rau theem hloov pauv tau cov ntawv thov tseem ceeb hauv kev tswj qhov kub, lub zog cia, thiab cua sov tswj teb. Cov hauv qab no yog cov ncauj lus kom ntxaws kev tshuaj xyuas ntawm theem hloov pauv khoom:

cuab yeej

Cov yam ntxwv tseemceeb ntawm theem hloov pauv yog lub peev xwm los nqus lossis tso tawm ntau npaum li cas ntawm cov latent kub (theem hloov ntsuas kub). Nyob rau hauv cov txheej txheem ntawm cov cua kub nqus, cov ntaub ntawv hloov ntawm ib theem rau lwm qhov, xws li los ntawm cov khoom ua kua (yaj). Thaum lub sijhawm tshem tawm exothermic, cov khoom hloov los ntawm cov kua rau cov khoom khov (solidification). Cov txheej txheem hloov theem no feem ntau tshwm sim nyob rau hauv qhov kub me me ntau, tso cai theem hloov pauv kom muaj qhov zoo thermal stabilate ntawm yuav luag tas li kub.

Lub ntsiab

Theem Hloov Hloov Hloov tuaj yeem faib cov khoom hauv qab no raws li lawv cov tshuaj lom neeg thiab cov ntawv thov:

1. Organic PCMS: suav nrog paraffin thiab fatty acids. Cov ntaub ntawv no muaj cov tshuaj muaj peev xwm zoo, rov qab siv zog, thiab ib qho kev hloov theem hloov theem kev hloov tsheb kub.
2. Inorganic PCMS: suav nrog cov kev daws teeb meem thiab cov hlau. Lawv cov thermal conductivity feem ntau zoo dua li cov organic pcms, tab sis lawv yuav fim kev sib cais thiab cov teeb meem corrosion.
3. Biobased PCMS: Qhov no yog qhov pib ntawm PCMS uas yog los ntawm ntuj Biomaterials thiab muaj cov yam ntxwv ib puag ncig thiab muaj cov yam ntxwv ib puag ncig.

Daim Ntawv Thov Cheeb Tsam

Theem Hloov Khoom siv tau siv dav hauv ntau daim teb, feem ntau yog suav nrog:

1. Lub tsev ua haujlwm txuag hluav taws xob: los ntawm kev sib koom ua ke cov ntaub ntawv xws li cov phab ntsa, cov plag tsev, lossis hauv tsev siv hluav taws xob kom zoo rau cov cua txias thiab cua sov.
2. Thermal Zog Cia: Cov pa hluav taws xob tuaj yeem nqus tau cua sov thiab tso tawm thaum tshav kub kub thiab thov kom muaj zog txuas ntxiv xws li hnub ci thiab cua hlob.
3. Kev tswj hwm thermal ntawm cov khoom siv hluav taws xob: Siv PCMS hauv cov khoom siv hluav taws xob tuaj yeem pab tswj cov khoom siv hluav taws xob ua haujlwm, txhim kho cov khoom siv, thiab txuas ntxiv ntaus ntawv ua haujlwm lifespan.
4. Tsheb thauj mus los thiab ntim khoom: kev siv cov PCMS hauv cov zaub mov thiab cov khoom siv tsheb thauj khoom tuaj yeem tswj cov khoom lag luam raws li cov kev mob siab thiab ua kom cov khoom lag luam kom zoo.

Cov kev sib tw ua haujlwm

Txawm hais tias muaj qhov tseem ceeb ntawm theem hloov chaw, lawv tseem ntsib qee cov kev cov nyom hauv lub sijhawm, thiab kev xav tau kev ntim thiab ua ke thev naus laus zis. Cov kev cov nyom no yuav tsum tau kov yeej los ntawm kev nce qib hauv cov khoom siv science thiab tshuab Engineering.

Theem Hloov Hloov Hloov yog qhov xav tau heev nyob rau hauv cov teb ntawm cov tshuab ntsuab thiab lub tshuab siv hluav taws xob vim lawv cov kev ua tiav thermal thiab dav ua ntej kev cia siab.