Density, Viscosity, Speed of Sound, Bulk Modulus, and Surface Tension of Binary Mixtures of n-Heptane + 2,2,4-Trimethylpentane at (293.15 to 338.15) K and 0.1 MPa

Abstract

In this work, the physical properties of binary mixtures of n-heptane and 2,2,4-trimethylpentane were measured. Density and speed of sound were measured at temperatures ranging from (293.15 to 338.15) K, and viscosity was measured at temperatures ranging from (293.15 to 333.15) K. At 298.15 K, pure component values for heptane of 679.61 kg·m −3 , 0.389 mPa·s, and 1130.1 m·s −1 for density, viscosity, and speed of sound, respectively, agree with literature values. Similarly for 2,2,4-trimethylpentane, the values of 687.70 kg·m −3 , 0.501 mPa·s, and 1081.7 m·s −1 for density, viscosity, and speed of sound, respectively, agree with literature values. Density mole fraction and temperature data were fit to a secondorder polynomial. Bulk moduli ranged from (551.7 to 907.1) MPa over (293.15 to 338.15) K. Viscosity mole fraction data were fit using the three-body McAllister model, while the viscosity deviations were fit to a Redlich−Kister type equation. For the mixtures, an increase in mole fraction of 2,2,4-trimethylpentane resulted in an increase in density and viscosity and in a decrease in speed of sound, bulk modulus, and surface tension. Increases in temperature decreased density, viscosity, speed of sound, and bulk modulus. At room temperature, the surface tension values ranged from (18.7 to 20.3) mN·m −1 . These data can be used by researchers who are modeling the combustion process of mixtures of primary reference fuels and are modeling the physical properties of fuels.

Thermophysical Property Measurements and Modeling of (Ether + Alkanol + Hydrocarbon) Mixtures: Binary and Ternary Mixtures (Dibutyl Ether + 1-Butanol + 1-Hexene or + Iso-octane) at 298.15 K

“…These chemicals are utilized without additional purification, with the exception of a precise degassing with an ultrasonication bath to avoid the creation of bubbles. Table shows the experimental (ρ), ( u ), and ( n D ) results for pure components DBE, 1-butanol, 1-hexene, and iso-octane, which are compared to the data presented in refs − and show a significant accord.…”

Oligo(amylene) from the reaction of fusel oil with zinc dihalide

“…The triamylene (2.53 mm 2 s −1 ) was more viscous than gasoline (0.72 mm 2 s −1 ) when measured at 20 °C. 52 However, the viscosity of the triamylene (7.85 mm 2 s −1 ) was approximately equivalent to the specifications of A-1 (8 mm 2 s −1 ) at −20 °C. The density of the triamylene (0.78 g mL −1 ) was less than the specification for D#2 (0.85 g mL −1 ) at 15 °C but was within the range limits for both A-1 and gasoline.…”

“…51 The viscosity (40 C) of the triamylene (1.75 mm 2 s À1 ) was slightly below the specications for D#2 (1.9-4.1 mm 2 s À1 ). The triamylene (2.53 mm 2 s À1 ) was more viscous than gasoline (0.72 mm 2 s À1 ) when measured at 20 C. 52 However, the viscosity of the triamylene (7.85 mm 2 s À1 ) was approximately equivalent to the specications of A-1 (8 mm 2 s À1 ) at À20 C. The density of the triamylene (0.78 g mL À1 ) was less than the specication for D#2 (0.85 g mL À1 ) at 15 C but was within the range limits for both A-1 and gasoline. 53 The triamylene (43.94 kJ g À1 ) had 8.5% more energy and nearly double the cetane number of isoamyl alcohol (37 kJ g À1 and 18.4, respectively), the major alcohol found in fusel oil from which it was made.…”

Effect of Surface and Interfacial Tension on the Resonance Frequency of Microfluidic Channel Cantilever

“…Since the inner surface of the channel is in contact with the fluid, the system may be modeled as two homogeneous media; i.e., a bulk layer of silicon nitride in contact with a bulk layer of fluid. The Young's modulus of the channel and the fluid are denoted as E H and E f , and they are 180 × 10 9 Pa and 0.7−0.9 ×10 9 Pa, respectively [55,59,60].…”