Characterization of fluid mixtures at high pressures using frequency response of microcantilevers

Eriş, Gamze; Baloch, Shadi Khan; Bozkurt, Asuman Aşıkoğlu; Jonáš, Alexandr; Kiraz, Alper; Alaca, B. Erdem; Erkey, Can

doi:10.1016/j.sna.2017.04.044

Cited by 3 publications

(1 citation statement)

References 39 publications

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“…Thus, we strongly recommend this technique if the purpose of the experiment is to study fundamentals of transport mechanism and measure composition dependent diffusion coefficient. Recently, Baloch et al developed an experimental technique to measure the composition of ethanol-CO 2 mixtures at high pressures by frequency response of microcantilevers [41,42].…”

Section: Kinetics Of Supercritical Dryingmentioning

confidence: 99%

Kinetics of Supercritical Drying of Gels

Şahin

Özbakır

İnönü

et al. 2017

Gels

Self Cite

102

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Supercritical drying of gels is considered as the most important step of aerogel production since it enables preservation of the three-dimensional pore structure which lead to unique material properties such as high porosity, low density, and large surface area. An understanding of the kinetics of supercritical drying is necessary to provide insight into material development, scale-up, and optimization of the aerogel manufacturing process. Thus, investigation of supercritical drying is gaining increased attention in recent years. This review paper covers the experimental considerations and techniques to study the kinetics of supercritical drying, fundamental mass transfer mechanisms during the drying process and modeling efforts to predict the drying kinetics for varying operating conditions and gel properties. Transport phenomena involving diffusion, convection, spillage by volume expansion, and axial dispersion are discussed by providing the fundamental equations and empirical correlations to predict transfer coefficients. A detailed review of literature covering experimental and theoretical studies on kinetics of supercritical drying is presented.

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Section: Kinetics Of Supercritical Dryingmentioning

confidence: 99%

Kinetics of Supercritical Drying of Gels

Şahin

Özbakır

İnönü

et al. 2017

Gels

Self Cite

102

View full text Add to dashboard Cite

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Sensitivity of compositional measurement of high-pressure fluid mixtures using microcantilever frequency response

Baloch

Jonáš

Kiraz

et al. 2018

Sensors and Actuators A: Physical

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Vibration and sensitivity analysis of piezoelectric microcantilever as a self-sensing sensor

Shahraki

Ghaderi

2019

Eur. Phys. J. Appl. Phys.

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Piezoelectric microcantilevers (MCs) have extensive applications in microelectromechanical systems. One of the applications of piezoelectric MCs is in self-sensing sensors. These sensors are highly popular due to their high accuracy, quick response, and environmental compatibility. Since the output current of piezoelectric layer is used as the sensing parameter in piezoelectric MCs, sensor optimization requires the maximum output current for each specific vibration. This paper uses dynamic piezoelectric MC analysis in different operating environments (air and liquid) to determine the factors influencing the output current of a piezoelectric layer. To obtain the differential equation of vibration, the hydrodynamic force applied to the piezoelectric MC by using the sphere string model. The equation was obtained via the Euler-Bernoulli beam theory and the Lagrange equation. The differential equation of the movement would yield both the MC deformation and the piezoelectric layer current. Using the Sobol statistical method for sensitivity analysis, the effect of each geometric parameter of the piezoelectric MC on the output current was studied to find the optimal geometry for the maximum output current. Results show that the output power of the piezoelectric layer is reduced in a liquid environment. Moreover, increasing the density of the liquid further exacerbates the drop in the output power. Therefore, in cases where the MC is to be used in a liquid environment (such as in biosensors), it is best to use a low-density liquid. The results also show that the electric current produced in the piezoelectric layer increases by reducing the length of the MC.

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Characterization of fluid mixtures at high pressures using frequency response of microcantilevers

Cited by 3 publications

References 39 publications

Kinetics of Supercritical Drying of Gels

Kinetics of Supercritical Drying of Gels

Sensitivity of compositional measurement of high-pressure fluid mixtures using microcantilever frequency response

Vibration and sensitivity analysis of piezoelectric microcantilever as a self-sensing sensor

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