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Article

Design, Simulation, and Fabrication of a Copper–Chrome-Based Glass Heater Integrated into a PMMA Microfluidic System

CMUA, Department of Electrical and Electronic Engineering, Universidad de los Andes, Carrera, 1E # 19A-40, Bogotá 111711, Colombia
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Academic Editor: Joost Lötters
Micromachines 2021, 12(9), 1067; https://doi.org/10.3390/mi12091067
Received: 7 July 2021 / Revised: 14 August 2021 / Accepted: 18 August 2021 / Published: 2 September 2021
(This article belongs to the Section A:Physics)
In this paper, the development of a copper–chrome-based glass microheater and its integration into a Polymethylmethacrylate (PMMA) microfluidic system are presented. The process highlights the importance of an appropriate characterization, taking advantage of computer-simulated physical methods in the heat transfer process. The presented system architecture allows the integration for the development of a thermal flow sensor, in which the fluid flows through a 1 mm width × 1 mm length microchannel across a 5 mm width × 13 mm length heating surface. Using an electrothermal analysis, based on a simulation and design process, the surface heating behavior curve was analyzed to choose a heating reference point, primarily used to control the temperature point within the fluidic microsystem. The heater was characterized using the theory of electrical instrumentation, with a 7.22% error for the heating characterization and a 5.42% error for the power consumption, measured at 0.69 W at a temperature of 70 °C. Further tests, at a temperature of 115 °C, were used to observe the effects of the heat transfer through convection on the fluid and the heater surface for different flow rates, which can be used for the development of thermal flowmeters using the configuration presented in this work. View Full-Text
Keywords: microheater; microsystem; electrothermal systems; thermal characterization; hysteresis; physical vapor deposition (PVD); Polymethylmethacrylate (PMMA) microheater; microsystem; electrothermal systems; thermal characterization; hysteresis; physical vapor deposition (PVD); Polymethylmethacrylate (PMMA)
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MDPI and ACS Style

Tovar, S.; Hernández, C.A.; Osma, J.F. Design, Simulation, and Fabrication of a Copper–Chrome-Based Glass Heater Integrated into a PMMA Microfluidic System. Micromachines 2021, 12, 1067. https://doi.org/10.3390/mi12091067

AMA Style

Tovar S, Hernández CA, Osma JF. Design, Simulation, and Fabrication of a Copper–Chrome-Based Glass Heater Integrated into a PMMA Microfluidic System. Micromachines. 2021; 12(9):1067. https://doi.org/10.3390/mi12091067

Chicago/Turabian Style

Tovar, Santiago, Cesar A. Hernández, and Johann F. Osma. 2021. "Design, Simulation, and Fabrication of a Copper–Chrome-Based Glass Heater Integrated into a PMMA Microfluidic System" Micromachines 12, no. 9: 1067. https://doi.org/10.3390/mi12091067

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