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 language | English |
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Title of host publication | 2017 IEEE International Instrumentation and Measurement Technology Conference (I2MTC 2017) Proceedings |
Place of Publication | Piscataway, NJ |
Publisher | IEEE |
Pages | 1-6 |
Number of pages | 6 |
ISBN (Electronic) | 978-1-5090-3596-0 |
DOIs | |
Publication status | Published - 2017 |
Event | 2017 IEEE International Instrumentation and Measurement Technology Conference - Torino, Italy Duration: 22 May 2017 → 25 May 2017 http://2017.imtc.ieee-ims.org/ |
Conference
Conference | 2017 IEEE International Instrumentation and Measurement Technology Conference |
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Abbreviated title | I2MTC 2017 |
Country/Territory | Italy |
City | Torino |
Period | 22/05/17 → 25/05/17 |
Internet address |
Bibliographical note
Accepted author manuscriptKeywords
- Biofuel composition
- Fuel sensor
- Impedance spectroscopy
- Optical absorption spectroscopy
- Ternary mixtures