Ukuhlolwa Kwezimpawu Zokudlulisa Ukushisa Kwegwebu Lensimbi kanye Nokusebenza Kwayo Embonini ye-HVAC

Isidingo sikagesi emhlabeni sikhula ngesilinganiso esingaba ngu-1.3% ngonyaka, futhi ukongiwa kwamandla kanye nokunciphisa ukungcola kungenye yamasu abalulekile entuthuko yezwe, ngakho imishini yokonga ugesi emkhakheni wokusetshenziswa kwamandla (ukuguqula ukushisa, ukugcina ukushisa, kanye ukusetshenziswa kokushisa) kudonsa ukunaka okukhulu.

Igwebu lensimbiubuchwepheshe bokucutshungulwa kwezinto ezibonakalayo olwahlongozwa usosayensi waseMelika uSosnick ngo-1948, uhlobo lwembotshana olwakhiwa uhlaka lwamathambo ensimbi kanye namayunithi embotshana axhumene namaseli avulekile, ingqamuzana ngalinye elivulekile (imbobo) lihlanganisa izindawo eziyi-12 ~ 14 ezine-pentagonal noma eziyi-hexagonal, impahla ukuzei-aluminium, insimbi, i-nickel, ithusi, i-ceramics, nama-alloys ensimbi, enezici ezinhle kakhulu kokubili kwensimbi yesigaba esiqhubekayo kanye nezici ze-discrete-phase pores.
Amagwebu ensimbi abonakala ngamapharamitha abalulekile alandelayo:
1. Ububanzi be-pore ububanzi obujwayelekile bezikhala futhi busukela ku-0.1 kuya ku-10 mm;
2. Ububanzi bohlaka lwamathambo ububanzi obuyisilinganiso bohlaka lwamathambo ensimbi;
3. Ukuminyana kwezimbotshana inombolo yezimbotshana iyintshi ngayinye futhi kuhlobene nosayizi weseli, usayizi wezimbotshana, nosayizi wombambo;
4. I-porosity ε iyingxenyana yevolumu yezimbotshana ezitholwe kusukela kuzilinganiso zesisindo nevolumu yesampula, kusukela ku-80% kuya ku-99%, futhi ingahlukaniswa ibe izimbotshana ezivulekile nezivaliwe ngokuya ngokuthi izimbobo ziyakwazi ukungena noma cha.
Ngenxa yezimpawu zokugeleza koketshezi nokushintshana kokushisa, ukusetshenziswa emkhakheni wamandla ngokuvamile kuwuhlobo lwembotshana evulekile, enokwakheka kwembotshana ezinhlangothi ezintathu eziqhubekayo futhi ezingavimbeki ngaphakathi, futhi kunezimbotshana phakathi kohlaka lwamathambo oluqinile, futhi uketshezi lungageleza. ngaphakathi kwezimbotshana, nge-porosity ε>80%, indawo enkulu ethize enkulu (1000~5000 m2/m3), ukuguquguquka okukhulu kwe-thermal, nokusebenza okuhle kokushintshanisa ukushisa, isetshenziswa kakhulu kumshini wokushisa, ukupholisa ngogesi, kanye ne-fuel cell. Ezikhungweni zamandla isetshenziswa ekushintsheni ukushisa ngensimbi ye-foam eshumekiwe, abaqoqi belanga, abamukeli belanga, ama-accumulators okushisa nokunye.
Ngokwezici zesakhiwo kanye nezici ezibonakalayo zegwebu lensimbi, phenya ukusetshenziswa okusebenzayo kwegwebu lensimbi emkhakheni we-HVAC, ngokulandelana, kusukela ekudlulisweni kokushisa, ukuqoqwa kokushisa, isitoreji sokushisa izici ezi-3 zezicelo zayo eziyinhloko nezici zocwaningo, okuyinhloko. okutholakele imi kanje:
(1) isishintshi sokushisa esishumekwe kugwebu lensimbi siyisishintshi sokushisa esihlangene esisebenza kahle kakhulu, esingakhuphula i-coefficient yokudlulisa ukushisa okuguquguqukayo izikhathi ezingu-3~9; izinto ezahlukene (ithusi, i-aluminium, i-nickel) ingathuthukisa kakhulu ikhono lokuqinisa ukudluliswa kokushisa, futhi izinto ezihlukene zingenza i-coefficient yokudlulisa ukushisa ihluke; i-foam metal embonweni wokudlulisa ukushisa ku-porosity, i-pore density, kanye nokufinyeleleka kwesikali se-pore ukucacisa ukudluliswa kokushisa kwemingcele eyinhloko esebenzayo; imingcele ngesilinganiso sokudlulisa ukushisa, ukwehla kwengcindezi, ukugeleza kokuhlangana kwe-coefficient yokudlulisa ukushisa kuyipharamitha eyinhloko; amapharamitha ngesilinganiso sokudlulisa ukushisa, ukwehla kwengcindezi, ukugeleza kwe-Coupling eqinile ye-coefficient yokudlulisa ukushisa kwemingcele eyinhloko kudingeka kunqunywe, umklamo wesishintshi sokushisa yimingcele yenkomba eyinhloko.
(2) I-Metal Foam isetshenziswa ezindaweni zokuqoqa ilanga, ngenxa yegwebu lensimbi elisetshenziswa kulesi simo sokushisa okuphezulu, umphumela wemisebe yokushisa uyabonakala futhi unamandla. Umthelela wokuhlanganisa wokuqhuba ukushisa nokudluliswa kokushisa kwemisebe emazingeni okushisa aphezulu enqubweni yokudlulisa ukushisa, kanye nokucaciswa kwesakhiwo segwebu lensimbi, kwenza izici ezithinta ukusebenza okusebenzayo kokushisa kwegwebu lensimbi kanye nemodi yokudlulisa ukushisa okuningi. futhi eyinkimbinkimbi. Okuvame ukusetshenziselwa ukumuncwa okuqondile abaqoqi belanga kanye nabaqoqi belanga be-volumetric, lapho umqoqi wokumuncwa kuyithonya legwebu lensimbi ekufakweni kwamandla elanga libusa kakhulu, phakathi kwensimbi, igwebu kanye nokudluliswa kokushisa okuwuketshezi kuthinta ngokungaqondile ukusebenza kwesamukeli samandla elanga; umqoqi we-volumetric ukusetshenziswa kokugeleza komoya kanye nokugeleza kwamandla elanga kudivayisi, i-geometry kanye nokucushwa kwempahla ye-foam yensimbi ithatha izici eziyinhloko.
(3)Igwebu lensimbiisetshenziswa kumadivayisi okugcina amandla ashisayo ngenxa yokuqhubeka kwesakhiwo kanye nokusebenza kahle okuphezulu kwe-thermal conductivity, kusetshenziswa i-conductivity yayo ephezulu yokushisa, i-porosity ephezulu kanye nendawo ethile ephezulu, kanye nezinto zokushintsha isigaba ezinomthamo omkhulu wokugcina ukushisa, isakhiwo esilula futhi asikho isidingo. ukusebenzisa amandla engeziwe, njll., izinzuzo ze-superposition yokubunjwa kwezinto zokushintsha isigaba esiyinhlanganisela, ukuthuthukisa ukudluliswa kokushisa kukapharafini, ukuqinisa ukuqhutshwa kokushisa kwezinto zokushintsha kwesigaba, ukutadisha ukuthuthukiswa kwe- insimbi yegwebu esigabeni sokushintsha impahla Ukuthuthukiswa kwensimbi yegwebu ekuhleleni izinto ezibonakalayo zesigaba, shintsha i-porosity kanye ne-pore scale, ukukhethwa kwezinto zokwakha, njll. ohlelweni oluyinhlanganisela yesikhathi sokuphendula sokushintsha kwesigaba, ukusatshalaliswa kwezinga lokushisa, isikhathi sokugcina ukushisa kanye ukudluliswa kokushisa kunomthelela obalulekile ekuthuthukisweni okulandelayo kwedizayini yesisetshenziswa ukuze kuhlinzekwe isisekelo esithile sethiyori.