Ko e founga hono ngaohi ʻo e Nanofluids

Ko e nanofluid ko ha lolo engineered ʻoku kau ai ha lolo fakavaʻe ʻoku ʻi ai e nanoparticles. ʻOku fie maʻu ʻa e synthesis ʻo e nanofluids, ko ha homogenization mo falalaʻanga mo falalaʻanga ke fakapapauʻi ʻoku ʻi ai ha tuʻunga maʻolunga ʻo e mafesi. Ko ultrasonic dispersers ʻa e tekinolosia maʻolunga taha ke fakatupu nanofluids ʻaki ha ngaahi ʻulungaanga fakaʻofoʻofa. Ultrasonic maʻolunga ange ʻa e fakamovetevetea ʻi he lavameʻa, vave, faingofua, ala falalaʻanga mo e anga fakakaumeʻa.

Ko e ha ʻa Nanofluids?

Ko e nanofluid ko ha lolo ʻoku ʻi ai ha ngaahi momoʻi meʻa nano (≺100nm), ʻoku faʻa ui ko e nanoparticles. Ko e Nanoparticles ʻoku fakaʻaongaʻi ʻi he nanofluids ʻoku meimei ke faʻu ʻaki ia ʻa e ukamea, oxides, carbides, pe kaponi nanotubes. ʻOku fakamovetevete ʻa e nanoparticles ko ʻeni ki ha lolo fakavaʻe (e.g, lolo vai, mo e ala meʻa pehe) kae lava ke maʻu ha engineered colloidal fakamavaheʻi, hange ko e nanofluid. Nanofluids fakalahi ʻe he fakaʻaliʻali fakapaaki ʻo e ʻa e ngaahi koloa fakatuʻasino hange ko hono fakafuofuaʻi conductivity, valaloto diffusivity, viscosity mo convective e ʻea vela coefficients fakafehoanaki ki he ngaahi koloa fakamatelie ʻo e lolo.
Ko hono fakaʻaongaʻi angamaheni ʻo e nanofluids ko hono fakaʻaongaʻi ko e coolant pe refrigerant. ʻI hono tanaki atu ʻo e ngaahi nano ki he coolants angamaheni (hange ko e vai, lolo, ethylene glycol, polyalphaolefin etc.), ʻoku toe lelei ange ai hono fakafuofuaʻi ʻo e ngaahi koloa ʻo e coolants angamaheni.

Kole 'a e fakamatala




Fakatokanga'i ange 'etau Tu'utu'uni totonu fakatautaha.


Ultrasonic dispersion is a well established technique to prepare nanofluids.

Ultrasonic homogenizer UP400St ki hono ngaohi ʻo e nanofluids

Ko hono ngaohi ʻo e Nanofluids ʻaki ha Ultrasonic Homogenizer

ʻE lava ke takiekina mo takihalaʻi ʻa e microstructure ʻo e nanofluids ʻe hono fakaʻaongaʻi ʻo e tekinolosia homogenization lelei taha mo e ngaue ki he ngaahi fakangatangata. Kuo fakamoʻoniʻi ʻa ultrasonic fakamovetevetea ko ha founga lelei mo falalaʻanga ia ki nanofluid teuteu. ʻOku fakaʻaongaʻi ʻa e ultrasonic dispersers ʻi he fakatotolo mo e faʻa ngaue ke synthesize, Ngaohiʻanga mahoaʻa, fakamovetevetea mo homogenize nanoparticles ʻaki ʻa e faitaha maʻolunga mo e lahi ʻo e tufakiʻanga naunau lausiʻi. ʻOku kau ʻi he ngaahi fakangatangata ki he synthesis ʻo e nanofluids ʻa ultrasonic input ʻo e ivi, ultrasonic amplitude, ʻea, malohi, mo e acidity. Futhermore, ko e faʻahinga mo e concentrations ʻo e reactants mo e additives pea pehe ki he kautaha, ʻa ia ʻoku tanaki atu ai ʻa e additives ki he founga fakaleleiʻi, ko ha ngaahi meʻa mahuʻinga ia.
ʻOku ʻiloʻi lelei ko e ngaahi koloa ʻo e nanofluids ʻoku fakafalala malohi ia ki he faʻunga mo e fotunga ʻo e nanomaterials. Ko ia ai, ko hono maʻu ko ia ʻo e microstructures mapuleʻingofua ʻo e nanofluids ko e tefitoʻi meʻa ia ʻoku tokoni ki he ngaue mo e tuʻunga lelei ʻo e nanofluids. Ko hono fakaʻaongaʻi ʻo e optimized ultrasonication ngaahi fakangatangata hange ko e amplitude, malohi, mafana mo e ivi ʻoku fakahu mai (ʻa ia ko e/mL) ko e ki ia ki hono ngaohi ha fale tauhiʻanga ʻo e fanga monumanu, teunga maʻolunga nanofluid. ʻE lava ke fakaʻaongaʻi lelei ʻa e Ultrasonication ke deagglomerate mo fakamovetevetea ʻa e ngaahi momoʻi meʻa ki he nanoparticles tautaha. ʻI he siʻisiʻi ange ʻa e kihiʻi konga siʻi, Brownian fokotuʻu (vave Brownian) pea pehe ki he tupulaki ʻa e ngaahi fengaueʻaki mo e ola ʻo e nanofluids. Hielscher ultrasonicators fakaʻata ʻa e mapuleʻi totonu ʻo e ngaahi fakangatangata mahuʻinga kotoa pe, ʻe lava ke hokohoko atu ʻene lele ʻi he amplitudes maʻolunga (24/7/365) pea haʻu mo e fakamatala fakahangatonu protocolling ki hono fakafuofuaʻi faingofua ʻo e sonication kotoa pe.

Ultrasonic dispersion is a reliable technique to produce nanoparticles such as nano-silica for nanofluids

Ultrasonically fakamovetevete nano-silica

Sonication fakaleleiʻi e tuʻunga malu ʻo Nanofluids

Ki he nanofluids, ko ha agglomeration ʻo nanoparticles ola ʻoku ʻikai ngata pe ʻi he nofoʻanga mo e clogging ʻo microchannels ka ʻoku toe holo foki mo hono valaloto conductivity ʻo e nanofluids. ʻOku lahi hono fakaʻaongaʻi ʻo e ultrasonic deagglomeration mo e fakamovetevetea ʻi he saienisi ʻo e ngaahi naunau mo e faʻa ngaue. Ko e Sonication ko ha founga ia kuo ʻosi fakamoʻoniʻi ke teuteuʻi ʻaki ʻa e nano-dispersions ʻaki ha teunga nanoparticle tufakiʻanga naunau mo ha tuʻunga malu lahi. Ko ia ai, Hielscher ultrasonic dispersers ʻa e tekinolosia ʻoku fie ngaueʻaki, ʻi he taimi ʻoku hoko mai ai ki hono ngaohi ʻo e nanofluids.

Ultrasonically faʻu Nanofluids ʻi he fekumi

Kuo fakatotoloʻi ʻe he fakatotolo ʻa e ngaahi ola ʻo e ultrasonication mo ultrasonic fakangatangata ʻi he ngaahi ʻulungaanga ʻo e nanofluids. Laukonga lahi ange fekauʻaki mo e ngaahi meʻa fakasaienisi ʻi ultrasonic nanofluid teuteu.

ultrasonicator UP200St (200W) dispersing e kaponi ʻuliʻuli ʻi he vai ʻo ngaue ʻaki ʻa e 1% uat Tween80 ko surfactant

Kole 'a e fakamatala




Fakatokanga'i ange 'etau Tu'utu'uni totonu fakatautaha.


Ngaahi ola ultrasonic ʻi he Al2O3 Nanofluid teuteu

Naʻe ʻilo ʻe Noroozi et Al. (2014) naʻe ʻi ai ha "kihiʻi konga siʻi ange, naʻe toe lahi ange ai hono fakafuofuaʻi ʻo e diffusivity ʻo e nanofluids tupu mei he sonication. ʻIkai ngata ai, naʻe maʻu ha tuʻunga malu mo ha fakalahi lahi ange ʻo e valaloto diffusivity ʻe sonicating ʻa e nanofluids ʻaki ʻa e malohi maʻolunga ange fekumi sonicator kimuʻa pea toki fua. " Naʻe lahi ange hono fakafuofuaʻi diffusivity ʻo e valaloto ki he fanga kiʻi Same iiki ange. ʻOku tupu ʻeni he ʻoku ʻi ai ha fanga kiʻi momoʻi meʻa iiki ange ʻoku lelei ange ke voliume ratios. Ko ia ai, naʻe tokoni ha fanga kiʻi momoʻi meʻa iiki ange ke faʻu ha nanofluid mo ha sonication ʻi ha ultrasonic fekumi ne hoko ai ha ola lahi ʻi he diffusivity valaloto. (Noroozi et Al. 2014)

Fakahinohino fakasitelei ki he ultrasonic ʻo e Al2O3-vai nano fluids

Ultrasonicator UP400St dispersing nanoparticles for nanofluid productionʻUluaki, fakafuofuaʻi ʻa e lahi ʻo e Al2O3 nanoparticles ʻe ha palanisi fakaʻilekitulonika fakaʻilekitulonika. Hili ia pea al2O3 nanoparticles ki he vai mamafa pea ne oloolo ʻa e Al2O3 vai. Sonicate hokohoko atu ʻa e fefiofi ki he 1h ʻaki ha ultrasonic fekumi-type UP400S (400W, 24kHz, vakai, pic. toʻohema) ke ngaohi ha teunga dispersion ʻo nanoparticles ʻi he vai kuo fakafonu. ʻE lava ke teuteuʻi ʻa e nanofluids ʻi ha fractions kehekehe (0.1%, 0.5%, mo e 1%). ʻOku ʻikai fie maʻu ha ngaahi liliu surfactant pe pH. (Isfahani et Al., 2013)

Ultrasonically ongo Aqueous ZnO Nanofluids

Elcioglu et Al. (2021) ʻi heʻenau ako fakasaienisi "ko ultrasonication ko ha founga mahuʻinga ia ki he fakamovetevetea totonu ʻo e nanoparticles ʻi he lolo mo e taʻeueʻia, pea pehe ki he ngaahi koloa ʻoku feʻunga mo e mamani." Naʻa nau fakaʻaongaʻi ʻa e ultrasonicator UP200Ht ke ngaohi ʻaki ʻa e ZnO/vai nanofluids. Naʻe mahino ʻaupito e ngaahi nunuʻa ʻo e Sonication ʻi he vavakovi ʻa e aqueous ZnO nanofluid. ʻOku ola lelei ʻa e ngaahi meʻa naʻe maʻu ʻe he kau fakatotolo ʻi he ngataʻanga ʻo e nano, faʻu ʻo e filimi filimi mo e ngaahi fotunga kehe ʻo ha faʻahinga nanofluid ʻe lava ke fakatonutonu mo fakatokangaʻi ʻi he ngaahi tuʻunga totonu ultrasonication.

Ngaahi lelei ʻo Hielscher Ultrasonicators for Nanofluids

  • lelei 'aupito
  • Fakamovetevetea falalaʻanga ʻo e nanoparticles
  • Tuʻunga ʻo e tekinolosia fakaʻaati
  • Lava ke feliliuaki ki hoʻo tohi kole
  • 100% telinga scalable ki ha faʻahinga tuʻunga pe
  • Faingofua hono maʻú
  • cost-Effective
  • Malu mo anga fakakaumeʻa

Ultrasonic Homogenizers ki he polokalama Nanofluid

Mapule'i totonu ho'o ngaahi founga ultrasonic fakangatangata 'e Hielscher Ultrasonics' polokalama fakakomipiuta potoHielscher Ultrasonics ngaahi faʻufaʻu, ngaahi fale ngaohiʻanga mo tufaki ʻo e ngaue maʻolunga ultrasonic dispersers ki he faʻahinga homogenization mo e ngaahi polokalama deagglomeration kotoa pe. Ko e taimi ʻoku hoko mai ai ʻa e nanofluids, ʻoku mahuʻinga leva hono mapuleʻi sonication mo ha faitoʻo falalaʻanga ultrasonic ʻo e fakamavaheʻi nanoparticle.
Hielscher Ultrasonics ʻ processors ʻoatu ke ke mapuleʻi kakato ʻa e ngaahi fakangatangata mahuʻinga kotoa pe hange ko e input ʻo e ivi, ultrasonic malohi, amplitude, malohi, mafana mo e taimi tauhi. Te ke lava ai ʻo liliu ʻa e ngaahi fakangatangata ki optimized ngaahi tuʻunga, ʻa ia ʻoku iku ia ki he nanofluids lelei.

  • Ki ha faʻahinga voliume/meʻa ʻe malava: ʻOku ʻomi ʻe he Hielscher ha ultrasonicators mo ha lekooti lahi ʻo e ngaahi naunau. ʻOku lava heni ke fokotuʻutuʻu ʻa e polokalama ultrasonic lelei taha ki hoʻo tohi kole mo e meʻa ʻe malava. ʻOku ʻomi ʻe Hielscher ʻa e founga lelei ultrasonic ki hoʻo founga ngaue, mei he fanga kiʻi foʻi mahoaʻa iiki mo e milliliters ki he voliume maʻolunga ʻo e ngaahi kalani ʻe lauiafe ʻi he houa.
  • Robustness: ʻOku kaukaua mo falalaʻanga ʻetau ngaahi polokalama ultrasonic. ʻOku langa ʻa e Hielscher ultrasonicators kotoa pe ki he tafa 24/7/365 pea ʻoku fie maʻu ke siʻisiʻi hono tokangaʻi.
  • Tokotaha fakaʻaongaʻi-anga fakakaumeʻa: ʻOku hanga ʻe hono fakamaʻalaʻala mai ʻo e polokalama fakakomipiuta ʻo ʻetau ngaahi meʻangaue ultrasonic ʻo fakaʻata ʻa e fokotuʻutuʻu kimuʻa pea fakahaofi ʻo e sonication ki ha sonication faingofua mo falalaʻanga. ʻOku faingofua pe hono maʻu ʻo e menu ʻi ha coloured fakaʻilekitulonika. ʻOku fakaʻata koe ʻe he control browser ke ke ngaue mo siofi ʻi ha faʻahinga browser pe ʻi he ʻInitaneti. ʻOku hanga ʻe hono lekooti fakahangatonu ʻo e fakamatala ʻo fakahaofi ʻa e ngaahi fakangatangata ʻo ha sonication ʻoku lele ʻi ha kaati SD.

'Oku 'omi 'e he e tepile 'i lalo ha faka'ilonga ia 'o e tu'unga 'o e ngaue ki he fakafuofua'i 'o e hotau ultrasonicators:

Kulupu (batch) 'o e tohi 'Oku tafe mai 'a e 'ea 'Oku fokotu'u atu 'a e ngaahi me'angaue
mL 'o e 1 ki he 500 10 ki he 200mL/miniti 'e UP100H
mL 'i he 10 ki he 2000 20 ki he 400mL/miniti 'e UP200Ht, UP400St
0.1 ki he 20L 0.2 ke 4L/miniti 'e UIP2000hdT
10 ki he 100L 2 ki he 10L/miniti 'e UIP4000hdT
n.a. 10 ki he 100L/miniti 'e UIP16000
n.a. lalahi fakataha'i 'o e UIP16000

Fetu'utaki mai kiate kimautolu! / Kole kiate kitautolu!

Kole ki ha fakamatala lahi ange

Kataki 'o ngaue 'aki e foomu 'i lalo ke kole ha toe fakamatala ki he ultrasonic processors, faka'aonga'i mo e totongi. Te mau fiefia ke alea'i e founga 'oku mo 'i ai mo ho'omou ngaahi fie ma'u ultrasonic he polokalama!









Kataki 'o fakatokanga'i ange 'etau Tu'utu'uni totonu fakatautaha.


Ultrasonic high-shear homogenizers are used in lab, bench-top, pilot and industrial processing.

Hielscher Ultrasonics ʻa e ngaohiʻanga koloa maʻolunga ultrasonic homogenizers ki hono tuifio ʻo e ngaahi polokalama, fakamovetevetea, emulsification mo e toʻo hingoa ʻi he fale fakatotolo fakakemi, pailate mo e meʻafua ki he ngaahi meʻa fakapisinisi.

Ngaahi tohi/fakamo'oni fakafolofola



Hielscher Ultrasonics supplies high-performance ultrasonic homogenizers from lab to industrial size.

Ngaue ultrasonics maʻolunga! ʻOku ʻufiʻufi ʻe he koloa ʻa Hielscher ʻa e tuʻunga kakato mei he fale fakatotolo fakakemi ultrasonicator ʻi he ngaahi ʻiuniti ʻi ʻolunga ki he ngaahi polokalama ultrasonic lalahi.