A review of phase separation issues in aviation gasoline fuel and motor gasoline fuels in aviation

Kumar, Thanikasalam; Rahmat, M. F.; Fahmi, A G Mohammad; Zulkifli, A M; Shawal, N Noor; Ilanchelvi, K; Ananth, M; Elayarasan, R

doi:10.1088/1757-899x/370/1/012007

Cited by 1 publication

(1 citation statement)

References 6 publications

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“…It is well known that water is not miscible with gasoline. These two fractions will tend to separate depending on their relative concentrations in a mixture and environmental conditions [4,40,41]. Water forms complexes with gasoline containing liquid phase water and gasoline-water emulsions.…”

Section: Limits Of Detection Of Water and Isopropanol Admixtures In G...mentioning

confidence: 99%

Ultrafast Time-of-Flight Method of Gasoline Contamination Detection Down to ppm Levels by Means of Terahertz Time-Domain Spectroscopy

et al. 2022

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In this article, we present the possibility of using terahertz time-domain spectroscopy to detect trace, ppm-level (%wt.) concentrations of admixtures in 95-octane lead-free gasoline in straightforward time-of-flight (pulse-delay) measurements performed directly in the liquid. The method was tested on samples containing 75–0.0125% of isopropanol and 0.3–0.0250% of water. The detection limits for isopropanol and water content were determined to be 125 ppm and 250 ppm, respectively, approaching the limits of much more complicated and time-consuming methods (like spectroscopy of the vapor phase). The measured pulse delays were compared with theoretical calculations using the modified Gladstone-Dale mixing rule for the solutions. The comparison demonstrated good agreement for gasoline-alcohol mixtures and large discrepancies for gasoline-water mixtures, suggesting that gasoline-water mixtures cannot be considered idealized binary mixtures. Our results clearly show that the pulse time delay measurement by THz-TDS is a fast and sensitive method of gasoline contamination detection and, as such, can be easily integrated with industrial online real-time quality control applications.

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Section: Limits Of Detection Of Water and Isopropanol Admixtures In G...mentioning

confidence: 99%

Ultrafast Time-of-Flight Method of Gasoline Contamination Detection Down to ppm Levels by Means of Terahertz Time-Domain Spectroscopy

et al. 2022

View full text Add to dashboard Cite

show abstract

A review of phase separation issues in aviation gasoline fuel and motor gasoline fuels in aviation

Cited by 1 publication

References 6 publications

Ultrafast Time-of-Flight Method of Gasoline Contamination Detection Down to ppm Levels by Means of Terahertz Time-Domain Spectroscopy

Ultrafast Time-of-Flight Method of Gasoline Contamination Detection Down to ppm Levels by Means of Terahertz Time-Domain Spectroscopy

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