Study on Thermophysical Properties of Binary Mixtures of Butyl Propionate + Ketones at (303.15 and 313.15) KAbstract Densities, viscosities and speeds of sound for the binary systems of butyl propionate with cyclopentanone, 3-pentanone, cyclohexanone and

Rathnam, Manapragada V.; Kumar, M. S. S.; Sayed, Reema T.; Ambavadekar, D. R.

doi:10.17628/ecb.2014.3.166-172

Cited by 1 publication

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“…Table 3 summarizes the results for surface tension and viscosity obtained for the six fuels tested in this work. Measurements obtained in this work using droplet oscillation dynamics and standard instruments (tensiometer and viscometer), are compared with literature data from various sources [23][24][25][26][27][28][29][30][31]. The measured values reported for each fuel using droplet oscillation are averaged values calculated from 4-7 data sets.…”

Section: Surface Tension and Viscosity Measurementsmentioning

confidence: 99%

A small-volume, high-throughput approach for surface tension and viscosity measurements of liquid fuels

Dang¹,

Zhao²,

Schoegl³

et al. 2020

Meas. Sci. Technol.

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An ongoing effort looking at bioblendstocks to function as drop-in replacements or blending components for gasoline has identified a large number of candidate fuels. This work documents an approach for rapid screening of candidate fuels using relatively small sample sizes (O(µ l)) that targets two key physical properties of liquid fuels-surface tension and viscosity. The approach utilizes shape oscillation dynamics of single droplets generated by a piezo-electric device and their decay over time. Strobed imaging of the oscillation process is used along with image processing, edge detection, and data analysis to capture the decay of the oscillation over time. The time constant of the decay process along with oscillation frequency are then used to estimate viscosity and surface tension using a theory for small amplitude droplet oscillations. Measurements are obtained for primary reference fuels (isooctane and n-heptane) as well as candidate fuels from four bio-derived functional groups of interest. Measurement results for surface tension and viscosity are correlated with literature data as well as measurements from standard reference instruments. The measurement results show that the droplet oscillation based approach is capable of reproducing surface tension and viscosity values for the tested fuels within deviations of 7% and 13% respectively from literature data. Results are obtained using an average of 5 µl per fuel within about 20 s, thus demonstrating a small-volume, high-throughput approach that can be used for screening of candidate bioblendstock fuels.

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