A strip-type microthrottle pump : modeling, design and fabrication

Pečar, Borut (avtor), Vrtačnik, Danilo (avtor), Resnik, Drago (avtor), Možek, Matej (avtor), Aljančič, Uroš (avtor), Dolžan, Tine (avtor), Amon, Slavko (avtor), Križaj, Dejan (avtor)

A novel design for a strip-type microthrottle pump with a rectangular actuator geometry is proposed, with more efficient chip surface consumption compared to existing micropumps with circular actuators. Due to the complex structure and operation of the proposed device, determination of detailed structural parameters is essential. Therefore, we developed an advanced, fully coupled 3D electro-fluid-solid mechanics simulation model in COMSOL that includes fluid inertial effects and a hyperelastic model for PDMS and no-slip boundary condition in fluid-wall interface. Numerical simulation resulted in accurate virtual prototyping of the proposed device only after inclusion of all mentioned effects. Here, we provide analysis of device operation at various frequencies which describes the basic pumping effects, role of excitation amplitude and backpressure and provides optimization of critical design parameters such as optimal position and height of the microthrottles. Micropump prototypes were then fabricated and characterized. Measured characteristics proved expected micropump operation, achieving maximal flow-rate 0.43 mL min$^{−1}$ and maximal backpressure 12.4 kPa at 300 V excitation. Good agreement between simulation and measurements on fabricated devices confirmed the correctness of the developed simulation model.

• Jezik: Angleški jezik
• Ključne besede: microthrottle pump, micropump, numerical simulation, 3D fully coupled model, hyperelastic model, PDMS, lab on chip, COMSOL, fluidics, optimization
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FE - Fakulteta za elektrotehniko
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2013
• Št. strani: Str. 3092-3108
• Številčenje: Vol. 13, iss. 3
• PID: 20.500.12556/RUL-129499
• UDK: 681.5:621.38
• ISSN pri članku: 1424-8220
• DOI: 10.3390/s130303092
• COBISS.SI-ID: 9729620
• Datum objave v RUL: 02.09.2021

Gradivo je del revije

• Naslov: Sensors
• Skrajšan naslov: Sensors
• Založnik: MDPI
• ISSN: 1424-8220
• COBISS.SI-ID: 10176278

Licence

• Licenca: CC BY 3.0, Creative Commons Priznanje avtorstva 3.0 Nedoločena
• Povezava: https://creativecommons.org/licenses/by/3.0/deed.sl
• Opis: Dovoljuje kopiranje in razširjanje vsebin v kakršnemkoli mediju in obliki. Dovoljuje remixanje, urejanje, predelava in vključevanje vsebine v lastna dela v vse namene, tudi komercialne. Primerno morate navesti avtorja, povezavo do licence in označiti spremembe, če so kakšne nastale. To lahko storite na kakršenkoli razumen način, vendar ne na način, ki bi namigoval na to, da dajalec licence podpira vas ali vašo uporabo dela. Ne smete uporabiti pravnih določil ali tehničnih ukrepov, ki bi pravno omejili ali onemogočilo druge, da bi storili karkoli, kar licenca dovoli.
• Začetek licenciranja: 04.03.2013

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: mikročrpalke, numerična simulacija, 3D popolno sklopljen model, PDMS, laboratorij na čipu, COMSOL, mikrofluidika, optimizacija

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije

• Financer: Drugi - Drug financer ali več financerjev
• Program financ.: Ministry of Education, Science, Culture and Sport