A light-emitting diode- (LED-) based absorption sensor for simultaneous detection of carbon monoxide and carbon dioxide
Abstract
Here, a sensor was developed for simultaneous measurements of carbon monoxide (CO) and carbon dioxide (CO2) fluctuations in internal combustion engine exhaust gases. This sensor utilizes low-cost and compact light-emitting diodes (LEDs) that emit in the 3–5 µm wavelength range. An affordable, fast response sensor that can measure these gases has a broad application that can lead to more efficient, fuel-flexible engines and regulation of harmful emissions. Light emission from LEDs is spectrally broader and more spatially divergent when compared to that of lasers, which presented many design challenges. Optical design studies addressed some of the non-ideal characteristics of the LED emissions. Measurements of CO and CO2 were conducted using their fundamental absorption bands centered at 4.7 µm and 4.3 µm, respectively, while a 3.6 µm reference LED was used to account for scattering losses (due to soot, window deposits, etc.) common to the three measurement LEDs. Instrument validation and calibration was performed using a laboratory flow cell and bottled-gas mixtures. The sensor was able to detect CO2 and CO concentration changes as small as 30 ppm and 400 ppm, respectively. Because of the many control and monitor species with infra-red absorption features, which can be measured using the strategymore »
- Authors:
-
- Univ. of Central Florida, Orlando, FL (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Fuels, Engines and Emissions Research Center (FEERC)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- OSTI Identifier:
- 1332068
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Applied Spectroscopy
- Additional Journal Information:
- Journal Volume: 70; Journal Issue: 6; Journal ID: ISSN 0003-7028
- Publisher:
- Society for Applied Spectroscopy
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION; 54 ENVIRONMENTAL SCIENCES; LED; diagnostic; NDIR; CO; CO2; absorption; EGR; combustion; engine; absorption spectroscopy; carbon monoxide; carbon dioxide; light emitting diodes; mid-infrared; MIR
Citation Formats
Thurmond, Kyle, Loparo, Zachary, Partridge, Jr., William P., and Vasu, Subith S. A light-emitting diode- (LED-) based absorption sensor for simultaneous detection of carbon monoxide and carbon dioxide. United States: N. p., 2016.
Web. doi:10.1177/0003702816641261.
Thurmond, Kyle, Loparo, Zachary, Partridge, Jr., William P., & Vasu, Subith S. A light-emitting diode- (LED-) based absorption sensor for simultaneous detection of carbon monoxide and carbon dioxide. United States. https://doi.org/10.1177/0003702816641261
Thurmond, Kyle, Loparo, Zachary, Partridge, Jr., William P., and Vasu, Subith S. Mon .
"A light-emitting diode- (LED-) based absorption sensor for simultaneous detection of carbon monoxide and carbon dioxide". United States. https://doi.org/10.1177/0003702816641261. https://www.osti.gov/servlets/purl/1332068.
@article{osti_1332068,
title = {A light-emitting diode- (LED-) based absorption sensor for simultaneous detection of carbon monoxide and carbon dioxide},
author = {Thurmond, Kyle and Loparo, Zachary and Partridge, Jr., William P. and Vasu, Subith S.},
abstractNote = {Here, a sensor was developed for simultaneous measurements of carbon monoxide (CO) and carbon dioxide (CO2) fluctuations in internal combustion engine exhaust gases. This sensor utilizes low-cost and compact light-emitting diodes (LEDs) that emit in the 3–5 µm wavelength range. An affordable, fast response sensor that can measure these gases has a broad application that can lead to more efficient, fuel-flexible engines and regulation of harmful emissions. Light emission from LEDs is spectrally broader and more spatially divergent when compared to that of lasers, which presented many design challenges. Optical design studies addressed some of the non-ideal characteristics of the LED emissions. Measurements of CO and CO2 were conducted using their fundamental absorption bands centered at 4.7 µm and 4.3 µm, respectively, while a 3.6 µm reference LED was used to account for scattering losses (due to soot, window deposits, etc.) common to the three measurement LEDs. Instrument validation and calibration was performed using a laboratory flow cell and bottled-gas mixtures. The sensor was able to detect CO2 and CO concentration changes as small as 30 ppm and 400 ppm, respectively. Because of the many control and monitor species with infra-red absorption features, which can be measured using the strategy described, this work demonstrates proof of concept for a wider range of fast (250 Hz) and low-cost sensors for gas measurement and process monitoring.},
doi = {10.1177/0003702816641261},
journal = {Applied Spectroscopy},
number = 6,
volume = 70,
place = {United States},
year = {Mon Apr 18 00:00:00 EDT 2016},
month = {Mon Apr 18 00:00:00 EDT 2016}
}
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Works referencing / citing this record:
NIR sensor for aqueous urea solution film thickness and concentration measurement using a broadband light source
journal, January 2019
- Lubnow, M.; Dreier, T.; Schulz, C.
- Applied Optics, Vol. 58, Issue 16
On-Chip Non-Dispersive Infrared CO2 Sensor Based On an Integrating Cylinder
journal, September 2019
- Jia, Xiaoning; Roels, Joris; Baets, Roel
- Sensors, Vol. 19, Issue 19