Ongororo yeKutamisa Kupisa Hunhu hweMetal Foam uye Kushandiswa Kwayo muHVAC Indasitiri

Kudiwa kwesimba renyika kuri kukura pamwero we 1.3% pagore, uye kuchengetedza kwesimba uye kuderedzwa kwekubuda kwemhepo ndeimwe yenzira dzakakosha dzekusimudzira nyika, saka midziyo yekuchengetedza simba mumunda wekushandiswa kwesimba (kushandurwa kwekupisa, kuchengetedza kupisa, uye kupisa kushandiswa) kuri kukwezva vanhu vazhinji.

Metal furoTekinoroji yekugadzira zvinhu yakatsanangurwa nemusayendisiti weAmerica Sosnick muna 1948, rudzi rwepore rakagadzirwa nesimbi ligament-type skeleton uye pore mayuniti akabatana nemaseru akavhurika, sero rimwe nerimwe rakavhurika (pore) rinosanganisira 12 ~ 14 pentagonal kana hexagonal nzvimbo, iyo zvinhu kualuminium, simbi, nickel, mhangura, ceramics, uye simbi alloys, iyo ine unhu hwakanaka hwese inoenderera-chikamu simbi uye maitiro e discrete-phase pores.
Metal foams inoratidzirwa neanotevera akakosha paramita:
1. Iyo dhayamita yepore ndeyeavhareji yedhayamita yemavhuvhu uye inotangira kubva 0.1 kusvika 10 mm;
2. Skeleton dhayamita ndiyo avhareji yedhayamita yesimbi skeleton;
3. pore density nhamba yepores pa inch uye inoenderana nekukura kwesero, saizi yepore, uye saizi yembabvu;
4. porosity ε ndiyo chikamu chevhoriyamu ye pores inowanikwa kubva kuhuwandu uye zviyero zvehuwandu hwemuenzaniso, kubva pa80% kusvika ku99%, uye inogona kuiswa muzvikamu zvakazaruka uye zvakavharwa pores zvichienderana nokuti pores inoputika here kana kuti kwete.
Nekuda kwehunhu hwekuyerera kwemvura nekutsinhanha kupisa, kushandiswa mumunda wesimba kunowanzo kuvhurika pore mhando, ine inoenderera uye isina kuvharika matatu-dimensional pore chimiro mukati, uye kune mapores pakati peakasimba skeleton, uye mvura inogona kuyerera. mukati me pores, ine porosity ε> 80%, yakakura chaiyo nzvimbo (1000 ~ 5000 m2/m3), hombe yekupisa conductivity, uye yakanaka kupisa kupisa kuita, izvo inonyanya kushandiswa mukutsinhanisa kupisa, kutonhora kwemagetsi, uye sero remafuta. Muzvivakwa zvesimba rinoshandiswa mukutsinhana kwekupisa nesimbi yakadzamirwa foam, vateresi vezuva, vanogamuchira solar, heat accumulators uye zvichingodaro.
Zvinoenderana nehunhu hwemaumbirwo uye hunhu hwemafuro esimbi, ongorora mashandisirwo akaitwa efuro resimbi mumunda weHVAC, zvichiteerana, kubva pakupisa kupisa, kuunganidzwa kwekupisa, kuchengetedza kupisa 3 maficha ekushandisa kwayo kukuru uye maitiro echidzidzo, chikuru. zvakawanikwa ndezvizvi:
(1) mutsinhanisi wekupisa wakaiswa mufuro resimbi inonyatso shanda compact heat exchanger, iyo inogona kuwedzera convective kupisa kupisa coefficient ne3 ~ 9 nguva; zvinhu zvakasiyana (mhangura, aluminium, nickel) inogona kuvandudza zvakanyanya kukwanisa kusimbisa kupisa kwekushisa, uye zvinhu zvakasiyana-siyana zvinogona kuita kuti kupisa kwekushisa kwekofi kwakasiyana; furo simbi mune dzidziso yekupisa kupisa mu porosity, pore density, uye kupera kweiyo pore chiyero ndeye kuona kupisa kwekushisa kweiyo mikuru paramita yeinoshanda; iyo parameter muyero yekupisa kupisa, kudonhedza kudonha, kuyerera kwekubatana kweyekupisa kupisa coefficient ndiyo huru parameter; parameters muyero yekupisa kupisa, kudonhedza kudonhedza, kuyerera kweiyo yakasimba Kubatanidza kweyekupisa kuchinjisa coefficient yeiyo mikuru paramita inoda kutariswa, ndiyo dhizaini yekupisa kupisa ndiyo inonyanya kuratidza paramita.
(2) Metal foam inoshandiswa munzvimbo dzekuunganidza solar, nekuda kwefuro resimbi rinoshandiswa mune ino tembiricha mamiriro, kupisa kwemwaranzi mhedzisiro kuri pachena uye kwakanyanya. Iko kubatanidza mhedzisiro yekupisa conduction uye nemwaranzi kupisa kupisa pakupisa kwakanyanya mukupisa kupisa maitiro, pamwe neiyo chaiyo yechimiro chesimbi furo, inoita izvo zvinokanganisa kushanda kwemafuta conductivity yesimbi furo uye kupisa kwekushisa modhi yakawanda. uye yakaoma. Inowanzoshandiswa ndiyo yakananga kunyura solar collectors uye volumetric solar collectors, umo absorption muunganidzi ndiyo pesvedzero yesimbi furo pamusoro solar simba absorption ari kutonga, pakati simbi, furo uye fluid kupisa kuchinjika kunokanganisa zvisina kunanga kushanda kwezuva rinogamuchira simba; volumetric muunganidzi iko kushandiswa kwekuyerera kwemhepo uye kuyerera kwesimba rezuva mumudziyo, iyo geometry uye kugadziridzwa kwezvinhu zvesimbi foam inobata zvinhu zvikuru.
(3)Metal furoinoshandiswa mumagetsi ekuchengetedza magetsi emagetsi nekuda kwekuenderera mberi kwechimiro uye kushanda kwakanyanya kwekupisa kwekushisa, kushandisa kwayo yakakwirira yekushisa conductivity, yakakwirira porosity uye yakakwirira chaiyo nzvimbo, uye chikamu chekushandura zvinhu zvine simba guru rekuchengetedza kupisa, chimiro chiri nyore uye hapana chinodiwa. kushandisa simba rakawedzerwa, nezvimwewo, zvakanakira kusimba kwekuumbwa kweanosanganiswa chikamu chekuchinja zvinhu, kuwedzera kupisa kweparafini, kusimbisa iyo yekupisa conductivity yechikamu chekuchinja zvinhu, kudzidza kwekuvandudzwa kweiyo. furo simbi muchikamu chekuchinja zvinhu Kuvandudzwa kwesimbi yefuro muchikamu chekuchinja zvinhu kuronga, shandura porosity uye pore chiyero, kusarudzwa kwezvinhu, nezvimwewo pane inoumbwa system yechikamu shanduko yekupindura nguva, kugovera tembiricha, kupisa nguva yekuchengetedza uye kupisa kupisa kune zvakakosha pakugadzirisa kunotevera kwekugadzirwa kwemidziyo yekupa imwe theoretical hwaro.