Combining impedance spectroscopy with optical absorption spectroscopy in the UV for biofuel composition measurement

Luke Middelburg, Mohammadamir Ghaderi, Andre Bossche, Jeroen Bastemeijer, Ger De Graaf, Reinoud Wolffenbuttel, Rick Soltis, Jaco Visser

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

1 Citation (Scopus)
21 Downloads (Pure)

Abstract

A capacitive probe is generally used in a flex-fuel engine for measuring the ethanol content in biofuel. However, the water content in biofuel of high ethanol content cannot be disregarded or considered constant and the full composition measurement of ethanol, gasoline and water in biofuel is required. Electrical impedance spectroscopy with a customized capacitive probe operating in the 10 kHz to 1 MHz frequency range is combined with optical absorption spectroscopy in the UV spectral range between 230 and 300 nm for a full composition measurement. This approach is experimentally validated using actual fuels and the results demonstrate that electrical impedance spectroscopy when supplemented with optical impedance spectroscopy can be used to fully determine the composition of the biofuel and applied for a more effective engine management. A concept for a low-cost combined measurement system in the fuel line is presented.

Original languageEnglish
Title of host publication2017 IEEE International Instrumentation and Measurement Technology Conference (I2MTC 2017) Proceedings
Place of PublicationPiscataway, NJ
PublisherIEEE
Pages1-6
Number of pages6
ISBN (Electronic)978-1-5090-3596-0
DOIs
Publication statusPublished - 2017
Event2017 IEEE International Instrumentation and Measurement Technology Conference - Torino, Italy
Duration: 22 May 201725 May 2017
http://2017.imtc.ieee-ims.org/

Conference

Conference2017 IEEE International Instrumentation and Measurement Technology Conference
Abbreviated titleI2MTC 2017
CountryItaly
CityTorino
Period22/05/1725/05/17
Internet address

Keywords

  • Biofuel composition
  • Fuel sensor
  • Impedance spectroscopy
  • Optical absorption spectroscopy
  • Ternary mixtures

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