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dc.contributor.authorSisó Soler, Gonzalo
dc.contributor.authorRosell-Mirmi, Joana
dc.contributor.authorFernández, Álvaro
dc.contributor.authorLaguna Benet, Gerard
dc.contributor.authorVilarrubí, Montse
dc.contributor.authorBarrau, Jérôme
dc.contributor.authorIbañez, Manuel
dc.contributor.authorRosell Urrutia, Joan Ignasi
dc.description.abstractThis study presents a thermal analysis of a temperature-driven microfluidic cell through a nonlinear self-adaptive micro valve that provides the mechanisms for the system to maintain a given critical temperature in an efficient way. For the description of the dynamics of the microfluidic cell, a system of two ordinary differential equations subjected to a nonlinear boundary condition, which describes the behavior of the valve, is proposed. The solution of the model, for determined conditions, shows the strong nonlinearity between the overall thermal resistance of the device and the heat flux dissipated due to the action of the thermostatic valve, obtaining a variable thermal resistance from 1.6 × 10−5 to 2.0 × 10−4 Km2/W. In addition, a stability analysis of the temperature-driven microfluidic cell is presented. The stability of the device is essential for its proper functioning and thus, to prevent its oscillating behavior. Therefore, this work focuses on assessing the range of design parameters of the self-adaptive micro valve to produce a stable behavior for the entire system. The stability analysis was performed by studying the linear perturbation around the stationary solution, with the model solved for various heat flows, flow rates, and critical temperatures. Finally, a map of the design parameters space, which specifies the region with asymptotic stability, was found. In this map, the critical temperature (temperature at which the valve initiates the buckling) plays and important role.ca_ES
dc.description.sponsorshipThe research leading to these results was performed within the STREAMS project and received funding from the European Community’s Horizon 2020 program under Grant Agreement N◦ 688564.ca_ES
dc.relation.isformatofReproducció del document publicat a
dc.relation.ispartofMicromachines, 2021, vol.12, núm. 5, 505ca_ES
dc.rightscc-by (c) Sisó et al., 2021ca_ES
dc.subjectMicrofluidic cellca_ES
dc.subjectSelf-adaptive valveca_ES
dc.subjectCooling deviceca_ES
dc.titleThermal Analysis of a MEMS-Based Self-Adaptive Microfluidic Cooling Deviceca_ES

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