CEA-MINATEC Uses Simulation to Mitigate Energy Consumption in CO2 Detectors
Serge Gidon
CEA, Leti, Minatec, Grenoble, France
CEA-MINATEC is an international center for micro and nano-technologies which is funded by CEA, a French government-funded technological research organization. One of their current projects is developing silicon-based MEMS CO2 sensors that employ optical detection for monitoring adequate building ventilation.
For the sensor to function, a filament is heated to a specific temperature so that it emits most of its infrared radiation near a specific wavelength. The ambient CO2 absorbs much of this energy while the remaining infrared radiation is detected to allow calculation of CO2. These sensors run at very low current so they will last an extended period of time while costing considerably less than conventional CO2 sensors.
COMSOL Multiphysics is being used to find the optimum geometry for an energy-efficient filament which will avoid hot spots on the freestanding micro hotplate while consuming less energy. A 2D model was used with COMSOL’s ALE (Arbitrary Lagrangian-Eulerian) method to find geometric optimization.
Suggested Stories
Multiphase Flow Simulation Guides Wastewater Treatment Plant Design
To improve the health of the Dommel river, an aeration unit has been added to the Eindhoven wastewater treatment plant ...
Defying Convention to Achieve Faster Signal and Simulation Speeds
As the demand grows for faster electronic devices in smaller packages, we need to develop optimized high-speed ...
Driving EV Development with a Twin-Battery Approach
IAV developed an approach for combining sodium-ion and solid-state lithium iron phosphate battery technologies to form ...
Magnets Improve Quality of High-Power Laser Beam Welding
High-power laser beam welding uses a localized heat source to achieve narrow deep welds and high welding rates. ...
