Kodi zinthu zosinthira gawo ndi chiyani?

Phase Change Materials (PCMs) ndi mtundu wapadera wa zinthu zomwe zimatha kuyamwa kapena kutulutsa mphamvu zambiri zotentha pa kutentha kwapadera, pamene zikuyenda ndi kusintha kwa thupi, monga kuchoka ku cholimba kupita ku madzi kapena mosiyana.Katunduyu amapangitsa kuti zida zosinthira gawo zikhale ndi mtengo wofunikira pakuwongolera kutentha, kusungirako mphamvu, ndi magawo oyang'anira kutentha.Zotsatirazi ndikuwunika mwatsatanetsatane zida zosinthira gawo:

katundu wakuthupi

Chikhalidwe chachikulu cha zida zosinthira gawo ndikutha kuyamwa kapena kutulutsa kutentha kwakukulu kobisika pa kutentha kokhazikika (kutentha kwa gawo).Potengera kutentha, zinthu zimasintha kuchokera ku gawo limodzi kupita ku lina, monga kuchoka ku cholimba kupita kumadzimadzi (kusungunuka).Panthawi ya exothermic, zinthu zimasintha kuchokera kumadzi kupita ku zolimba (kulimbitsa).Njira yosinthira gawoli nthawi zambiri imachitika mkati mwa kutentha kocheperako kwambiri, zomwe zimapangitsa kuti zinthu zosinthira magawo zikhale zokhazikika pamatenthedwe pafupifupi nthawi zonse.

Mitundu yayikulu

Zida zosinthira gawo zitha kugawidwa m'magulu otsatirawa kutengera momwe amapangira mankhwala komanso momwe amagwiritsidwira ntchito:

1. Organic PCMs: kuphatikizapo parafini ndi mafuta acids.Zidazi zimakhala ndi kukhazikika kwa mankhwala, kusinthikanso, komanso kutentha koyenera kwa kusintha kwa gawo.
2. Ma PCM a Inorganic: kuphatikizapo mankhwala a saline ndi mankhwala azitsulo.Matenthedwe awo amatenthetsa nthawi zambiri kuposa ma PCM achilengedwe, koma amatha kukumana ndi kupatukana ndi kuwonongeka.
3. Ma PCM a Biobased PCM: Awa ndi ma PCM omwe akubwera omwe amachokera ku biomaterials zachilengedwe ndipo amakhala ndi chilengedwe komanso chokhazikika.

malo ofunsira

Zida zosinthira gawo zimagwiritsidwa ntchito kwambiri m'magawo angapo, makamaka kuphatikiza:

1. Kumanga mphamvu zowonjezera mphamvu: Mwa kuphatikiza ma PCM m'zinthu zomangira monga makoma, pansi, kapena denga, kutentha kwa m'nyumba kumatha kuyendetsedwa bwino, kuchepetsa mphamvu yogwiritsira ntchito mpweya ndi kutentha.
2. Kusungirako mphamvu zotentha: Ma PCM amatha kuyamwa kutentha kutentha kwambiri ndi kumasula kutentha kwa kutentha pang'ono, kuthandizira kulinganiza mphamvu zamagetsi ndi zofunikira, makamaka pakugwiritsa ntchito mphamvu zowonjezereka monga mphamvu ya dzuwa ndi mphepo.
3. Kuwongolera kutentha kwazinthu zamagetsi: Kugwiritsa ntchito ma PCM mu zipangizo zamagetsi kungathandize kusamalira kutentha komwe kumapangidwa panthawi yogwira ntchito, kukonza bwino, ndi kuwonjezera moyo wa chipangizo.
4. Mayendedwe ndi ma CD: Kugwiritsa ntchito ma PCM muzakudya ndi zoyendera zamankhwala kumatha kukhalabe ndi zinthu pansi pamikhalidwe yoyenera kutentha ndikuwonetsetsa kuti zinthu zili bwino.

Mavuto aukadaulo

Ngakhale zabwino zambiri zazinthu zosinthira gawo, amakumanabe ndi zovuta zina zamaluso pazogwiritsa ntchito, monga moyo wautali, kukhazikika kwamafuta, komanso kufunikira kwaukadaulo wophatikizira ndi kuphatikiza.Mavutowa akuyenera kuthetsedwa kudzera mukupita patsogolo kwa sayansi yazinthu ndiukadaulo waukadaulo.

Zida zosinthira gawo zimayembekezeredwa kwambiri pazamphamvu zobiriwira komanso ukadaulo wokhazikika chifukwa cha mawonekedwe awo apadera amafuta komanso chiyembekezo chogwiritsa ntchito kwambiri.