Combining impedance spectroscopy with optical absorption spectroscopy in the UV for biofuel composition measurement
Paper i proceeding, 2017

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.

Optical absorption spectroscopy

Fuel sensor

Ternary mixtures

Impedance spectroscopy

Biofuel composition

Författare

Luke Middelburg

TU Delft

Mohammadamir Ghaderi

TU Delft

Andre Bossche

TU Delft

J. Bastemeijer

TU Delft

Ger de Graaf

TU Delft

Reinoud F. Wolffenbuttel

TU Delft

R. Soltis

Ford Motor Company

Jaco H. Visser

Ford Motor Company

I2MTC 2017 - 2017 IEEE International Instrumentation and Measurement Technology Conference, Proceedings


978-150903596-0 (ISBN)

I2MTC 2017 - 2017 IEEE International Instrumentation and Measurement Technology Conference
Torino, Italy,

Ämneskategorier

Atom- och molekylfysik och optik

Annan elektroteknik och elektronik

DOI

10.1109/I2MTC.2017.7969676

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Senast uppdaterat

2022-04-14