Njirimara mbufe ọkụ nke ụfụfụ metal na-emeghe cell

Ọfụfụ ígwè bụ ụdị ihe igwe mejupụtara multifunctional nwere ọnụ ọgụgụ ụfọdụ, otu oghere nke pores, na ụfọdụ porosity na matrix metal. Igwe ụfụfụ nwere njirimara nhazi pụrụ iche dị ka nnukwu ebe elu, nnukwu porosity, na obere njupụta, ma nwee njirimara multifunctional mejupụtara dị ka ikpochapụ okpomọkụ (oghe-cell), mkpuchi okpomọkụ (mkpọchi emechi), ntinye ụda na ịma jijiji, fechaa. , elu kpọmkwem ike, electromagnetic shielding, wdg, na ọ bụ ụdị ihe bughi ihe arụrụ arụ na-ejikọta njirimara nke thermophysics, mechanics, acoustics, na ọkụ eletrik.
Makaụfụfụ ígwè emeghe-cell, Akwa porosity na mgbagwoju anya ntupu akụkụ atọ dị mgbagwoju anya na-eme ka ọ nwee ezigbo ọkụ na-ekpo ọkụ na oke ọkụ ọkụ na-ebufe arụmọrụ, nke nwere atụmanya ngwa ngwa dị ukwuu n'ọhịa nke ndị na-ekpo ọkụ na-ekpo ọkụ, microelectronic ngwaọrụ jụrụ oyi, na ihe ndị ọzọ. Maka ihe ndị na-ebufe ọkụ nke metal foam cell na-emeghe, a na-enyocha ọnọdụ nyocha ya ma nyochaa ya site na ngwa ngwa nke ndị na-ekpo ọkụ ọkụ.
Ọfụfụ ígwèmaka kọmpat okpomọkụ Exchangers
Ngwongwo mbufe okpomọkụ nke ụfụfụ ọla ka achọpụtara n'ozuzu ya. Mgbe gas ma ọ bụ mmiri mmiri na-esi na oghere ndị ahụ, a na-ebufe ọkụ ma gbanwee n'ụdị nke a na-amanye n'etiti ụfụfụ ígwè nke nwere oghere oghere na mmiri mmiri. N'otu aka ahụ, mgbagwoju anya ntupu akụkụ atọ dị mgbagwoju anya nke ụfụfụ ígwè na-eme ka mmetụta na-adịghị na ya pụta ìhè, na ogo nke ọgba aghara na-ewusikwa ike, si otú a na-akwalite elu siri ike na mmiri na-ekpo ọkụ na mpaghara okpomọkụ dị elu; n'aka nke ọzọ, na ụfụfụ metal nnukwu kpọmkwem n'elu ebe bụkwa ihe dị mkpa mere metal nwere ezigbo okpomọkụ nnyefe arụmọrụ. Ugbu a, ọmụmụ nke ụfụfụ ígwè maka kọmpat okpomọkụ Exchanger arụmọrụ tumadi na-elekwasị anya n'akụkụ ikuku enwekwukwa okpomọkụ nyefe na refrigerant-n'akụkụ enwekwukwa okpomọkụ.
Maka ihe ndị na-enyefe ọkụ n'akụkụ ikuku nke ụfụfụ ígwè, a na-eji ụfụfụ ígwè kama ntù maka ikposa ọkụ na ngwa ebe a na-eji ntù ọdịnala eme ihe, dị ka ihe ndị na-eme ka ọkụ eletrik dị jụụ, ndị na-ekpo ọkụ efere efere, na ndị na-ekpo ọkụ ọkụ. Na kọmpat okpomọkụ Exchanger, eruba okpomọkụ Njirimara ugbu a na-amụ tumadi maka ọla kọpa na aluminum ụfụfụ ọla na pore densities n'ozuzu erughị 40% na porosities nke 70% ma ọ bụ karịa.
N'ebe ụfọdụ nke pore, okpomọkụ na-enyefe ọkụ na-abawanye na mmụba nke porosity na-achịkwa. N'aka nke ọzọ, maka ụfọdụ porosity, nke dị elu nke pore density, na-ebelata ọrụ nnyefe ọkụ, nke nwere ike ịbụ n'ihi oke oke pore. Usoro ihe owuwu pore nke porosity, njupụta pore, na dayameta pore bụ isi ihe na-emetụta arụmọrụ mbufe ọkụígwè foams. Maka ntinye nke ụfụfụ ígwè na ihe ndị na-eme ka eletrik dị jụụ, a na-enyocha mmetụta nke porosity foam metal na pore dayameta na mmetụta nkwụsị ọkụ site na nyocha orthogonal. Nsonaazụ na-egosi na n'okpuru convection mmanye, arụ ọrụ ọkụ na-ekpo ọkụ nke ígwè ụfụfụ na-ejikọta ya na nhazi nke pore, bụ nke pore size nwere mmetụta kasịnụ.
Ụfọdụ nchọpụta nchọpụta na-egosi na ọ bụ ezie na ígwè ụfụfụ nwere ọrụ siri ike n'ịkwalite nnyefe ọkụ, ọganihu nke nguzogide adịghị eleghara anya yana mmụba nke arụmọrụ okpomọkụ. A na-eme ka arụmọrụ ọkụ na-ekpo ọkụ nke ígwè ụfụfụ dịkwuo mma na obere nrụgide nrụgide, na nkwụsị nrụgide na-abawanye na mmụba nke njupụta pore. Nsonaazụ nke ọmụmụ a na-enye ntụziaka maka nhazi na imepụta ihe ndị na-ekpo ọkụ na-ekpo ọkụ na-arụ ọrụ nke ọma. A na-eme nyocha nyocha nke ndị na-ekpo ọkụ ígwè na-ekpo ọkụ na ihe ndị na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ nke otu nha, na achọpụtara na n'okpuru otu ọnọdụ ule ahụ, igwe na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-adịchaghị mma karịa onye na-ekpo ọkụ ọkụ, na nkwụsị nrụgide Ọnụọgụ esemokwu dị elu karịa nke igwe na-agbanwe ọkụ. Igwe ụfụfụ porous nwere mmetụta na-ewusi ike doro anya na mbufe ọkụ convective, na mmetụta ike na-ebelata na mmụba nke ọnụ ọgụgụ Reynolds; igwe ụfụfụ porous na-eme ka nguzogide mmiri na-asọpụta na-abawanye nke ọma, mana mmụba nke nguzogide na-ebelata na mmụba nke ọnụ ọgụgụ Reynolds. A na-ahụ ike zuru oke nke nnyefe ọkụ convective na mmụba nke nrụgide nrụgide na ntinye nke akụkụ abụọ,porous ụfụfụ metaldabara adaba maka mmiri mmiri na obere oge ọnụego eruba. Igwe ụfụfụ nwere ọrụ nke ikuku na-eme ka ọkụ na-ekpo ọkụ na-eme ka ikuku dịkwuo elu, ma nkwalite arụmọrụ ọkụ na-enyefe ọkụ n'otu oge ahụ, nkwụsi ike na-arịwanye elu, na n'ozuzu arụmọrụ dị njọ karịa nku omenala. Nnyocha na-egosi na ígwè ụfụfụ dabara adaba maka oge ndị na-adịghị adị obere. Ya mere, ụfụfụ metal ikuku-n'akụkụ enwekwukwa okpomọkụ nyefe kwesịrị ịtụle ngwa oge, na ike kpuru ìsì mepụta omenala fin okpomọkụ dissipation ọzọ nnyocha.

Ụfụ ígwè ahụ nwekwara ike ịrụ ọrụ n'ịkwalite nnyefe okpomọkụ nke refrigerant site na mgbanwe oge. Nsonaazụ na-egosi na mgbe porosity ahụ doro anya, ọrụ mbufe ọkụ na-abawanye okpukpu abụọ ka njupụta pore na-ebelata site na 20 ruo 40 PPI na nha pore na-ebelata, n'ihi nhazi cell dị mma nke nwere nnukwu elu na oke mgbagwoju anya. N'ọ̀tụ̀tụ̀ dị elu, ọnụ ọgụgụ na-ebufe okpomọkụ na-esi ísì ụtọ na-ejigide ịrị elu na-adị nwayọọ ma na-eji nkụ na-arịwanye elu. Site na mmụba nke nta nke nta na nrụgide ọrụ, ihe na-enye ọkụ na-ekpo ọkụ na-ekpo ọkụ na obere nkụ dị ka esi mmiri n'ala, ya bụ, nnyefe ọkụ na-abawanye site na mmụba nke nrụgide, ma nrụgide na-ebili ruo n'ókè ụfọdụ na-arụ ọrụ na-emebi emebi na-esi esi. nnyefe okpomọkụ. Igwe ọkụ na-ebufe ọkụ nke ọkpọkọ ụfụfụ ọla kọpa dị ihe dị ka okpukpu atọ karịa nke tubes ọkụ. N'ihe banyere refrigerant dị ọcha, ọnụnọ nke ígwè ụfụfụ na-eme ka mmiri na-esi na-ekpo ọkụ na-ekpo ọkụ na-eme ka ọkụ na-esi na ya na-eme ka ọkụ na-ebufe ọkụ na-abawanye ruo 185%. N'ihe banyere ọnọdụ ndị nwere mmanụ, mmetụta nke ụfụfụ ígwè na-eme ka nnyefe okpomọkụ dị ike na-ebelata; N'okpuru otu ọnọdụ, ma e jiri ya tụnyere 5PPI ụfụfụ metal, 10PPI ụfụfụ metal nwere ike dịkwuo okpomọkụ nyefe ọnụọgụ site ruo 0,6 ugboro, na nta pore size nwere ike melite eruba esi okpomọkụ nnyefe ọnụọgụ.
A tụlere n'ụzọ zuru ezu mmetụta nke ọnụ ọgụgụ nrịba nke oke na-asọpụta na mmiri mmiri nke ụzọ abụọ na-agbadata nrịba ikuku condensation na ọnụọgụ mbufe okpomọkụ. Nsonaazụ na-egosi na mbelata nrụgide nke mgbidi dị n'ime jupụtara n'ime mgbidi anular metal foam tube dị nnọọ ukwuu karịa nke ọkụ ọkụ, na nrụgide nrụgide na-abawanye ngwa ngwa na nke na-abụghị nke na-arịwanye elu nke ọnụ ọgụgụ na-asọpụta na nkụ. Igwe ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ nke mgbidi dị n'ime ụlọ jupụtara annular metal foam tube dị ukwuu karịa nke ọkụ ọkụ, na ọkụ ọkụ na-ebufe ọnụ ọgụgụ na-abawanye na mmụba nke ọnụ ọgụgụ na-asọpụta na nkụchi, na ntinye ọkụ ọkụ na-ekpo ọkụ nke ụdị a. nke tubes gbasiri ike dị ihe dị ka okpukpu abụọ karịa nke tube ọkụ. N'ihi na mmetụta nke capillary ya doro anya, njupụta nke pore nke 130PPI kwadoro tube bụ mmetụta kachasị mma, maka ọkụ ọkụ 3.06 ugboro, 40PPI tube bụ nke kachasị dị ka nhazi nke obere ribbed tube dị ka ụzọ isi sikwuo ike.
Na kọmpat okpomọkụ Exchanger.ígwè ụfụfụnwere ike n'ụzọ zuru ezu tinye n'ọrụ na-ewusi ọrụ nke okpomọkụ nyefe, ma ọmụmụ gosiri na nguzogide àgwà nke ụfụfụ metal ibu dịkwa nnọọ ịrịba ama, mkpa maka keukwu arụmọrụ iji chọpụta ngwa nke ụfụfụ metal na kọmpat okpomọkụ Exchanger. Tụkwasị na nke ahụ, na ọnụnọ mmanụ nwere mmanụ, ọla ụfụfụ nwere ike iduga nbibi nke nnyefe ọkụ, na nkwalite ọkụ na-ebufe nke ụfụfụ ígwè maka mgbanwe mgbanwe mgbanwe okpomọkụ nke refrigerant kwesịrị ka a tụlee mmetụta nke lubricants.