Theem Hloov Hloov Hloov Khoom, PCMS yog hom tshwj xeeb uas tuaj yeem nqus lossis tso tawm ntau qhov kev hloov pauv ntawm lub xeev, xws li hloov los ntawm cov khoom ua kua lossis hloov pauv. 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.
Lub neej yav tom ntej kev txhim kho cov kev cia siab ntawm PCMS
Daim ntawv thov ntawm theem hloov cov ntaub ntawv (PCMS) hauv ntau qhov kev lag luam qhia tias lawv muaj peev xwm thiab muaj peev xwm nthuav dav yav tom ntej. Cov ntaub ntawv no muaj txiaj ntsig zoo rau lawv lub peev xwm los nqus thiab tso tawm ntau npaum li cas ntawm cov cua sov thaum hloov pauv theem. Hauv qab no yog ob peb thaj chaw tseem ceeb thiab kev cia siab rau kev txhim kho yav tom ntej ntawm theem hloov pauv cov khoom:
1. Zog hluav taws xob ua haujlwm thiab architecture
Hauv kev ua liaj ua teb architecture, PCMs tuaj yeem siv los ua ib feem ntawm kev ntse kub tswj cov tshuab hluav taws xob kom txo tau cov cua sov thiab cua txias. Los ntawm kev sib txuas rau cov ntaub ntawv hauv tsev xws li phab ntsa, ru tsev, cov chaw siv hluav taws xob tuaj yeem txo qis, thiab tsev cog khoom roj emissions tuaj yeem txo. Nyob rau yav tom ntej, nrog rau kev txhim kho theem hloov pauv tshiab thiab txo cov nqi, daim ntawv thov no tuaj yeem ua ntau dua.
2. Txuas lub zog txuas ntxiv
Hauv lub tshuab txuas ntxiv hluav taws xob xws li hnub ci thiab cua lub zog, cov PCMs tuaj yeem ua lub zog cia cov khoom siv thiab xav tau. Piv txwv li, lub zog hluav taws xob tsim los ntawm hnub ci zog sau tshuab thaum lub sijhawm tuaj yeem khaws cia hauv PCMS thiab tso rau thaum tsaus ntuj. Qhov no yuav pab txhim kho kev siv hluav taws xob kev ua tau zoo thiab ua kom qhov txuas ntxiv ntawm kev siv hluav taws xob.
3. Kev tswj qhov kub ntawm cov khoom siv hluav taws xob
Raws li cov khoom siv hluav taws xob ua cov miniaturly thiab kev ua tau zoo, kub tsis tawg tau dhau los ua qhov kev sib tw loj. PCMs tuaj yeem siv tau rau hauv cov khoom siv hluav taws xob xws li cov txheej txheem hluav taws xob thiab cov khoom siv txawb los pab tswj cov khoom siv hluav taws xob, txuas ntxiv ntaus ua neej lifespan, thiab txhim kho kev ua haujlwm.
4. Textiles thiab Khaub Ncaws
Daim ntawv thov ntawm PCMS nyob rau hauv textiles kuj qhia tau tias qhov ua tau ntawm kev nthuav dav. PCMs ua ke rau hauv cov ris tsho tuaj yeem tswj hwm tus neeg hnav lub cev kub, txhim kho kev nplij siab, thiab muaj cov huab cua huab. Piv txwv li, kev ua yeeb yam ua yeeb yam thiab cov cuab yeej sab nraum zoov tuaj yeem siv cov khoom siv no los tswj lub cev kub kom ruaj khov.
5. Kev Noj Qab Haus Huv
Hauv kev kho mob ntawm kev kho mob, PCMs tuaj yeem siv los tswj qhov ntsuas kub xws li cov tshuaj tiv thaiv kab mob thiab ua kom lawv ruaj khov thiab ua kom muaj zog. Ib qho ntxiv, cov PCMs tseem siv rau hauv cov khoom siv kho, xws li cov kev hnav khaub ncaws kom sov rau kev kho lub cev.
6. Tsheb thauj mus los
Hauv kev thauj mus los ntawm cov zaub mov thiab tshuaj noj, cov PCMs tuaj yeem siv tau los tswj cov khoom nyob hauv qhov ntsuas kub uas haum, tshwj xeeb tshaj yog nyob rau hauv cov xwm txheej kub uas yuav tsum tau siv cov ntaub ntawv txias.
Yav tom ntej cov kev sib tw thiab kev cob qhia kev txhim kho:
Txawm hais tias cov PCMS muaj peev xwm loj heev rau kev thov, lawv tseem ntsib qee qhov kev soj ntsuam dav dav, kev ntsuas ib puag ncig, muaj teeb meem ntev ntev, thiab muaj teeb meem ntev. Kev tshawb fawb yav tom ntej yuav ua rau kev tsim kho tau ntau dua, ib puag ncig tus phooj ywg, thiab tus nqi sib xyaw ua ke rau cov txheej txheem uas twb muaj lawm.
Tsis tas li ntawd, nrog qhov nce thoob ntiaj teb xav tau rau kev txuag hluav taws xob, thiab kev siv ua lag luam theem kev txhim kho nyiaj txiag thiab kev tsim kho tshiab ntawm cov thev naus laus zis ntsig txog cov thev naus laus zis.
Lub Sijhawm Post: Lub Tsib Hlis-28-2024