Surface tension of diethyl carbonate, 1,2-dimethoxyethane and diethyl adipate

Zhao, Guanjia; Bi, Shengshan; Li, Xin; Wu, Jiangtao

doi:10.1016/j.fluid.2010.03.040

Cited by 15 publications

(13 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“… a Temperature at which the total pressure above sulfuric acid solution (mostly due to water vapor) reaches 101325 Pa. b Saturation vapor pressure at 25 °C. c References to surface tension and saturated vapor data sources: TEG, , TEGMBE, , DA, , TDA, , DOS, , OA, , BEHA, , BEHP, , SA. , …”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Single Parameter for Predicting the Morphology of Atmospheric Black Carbon

Chen

Enekwizu

Fan

et al. 2018

Environ. Sci. Technol.

View full text Add to dashboard Cite

Black carbon (BC) from fuel combustion is an effective light absorber that contributes significantly to direct climate forcing. The forcing is altered when BC combines with other substances, which modify its mixing state and morphology, making the evaluation of its atmospheric lifetime and climate impact a challenge. To elucidate the associated mechanisms, we exposed BC aerosol to supersaturated vapors of different chemicals to form thin coatings and measured the coating mass required to induce the restructuring of BC aggregates. We found that studied chemicals fall into two distinct groups based on a single dimensionless parameter, χ, which depends on the diameter of BC monomer spheres and the coating material properties, including vapor supersaturation, molar volume, and surface tension. We show that when χ is small (low-volatility chemicals), the highly supersaturated vapor condenses uniformly over aggregates, including convex monomers and concave junctions in between monomers, but when χ is large (intermediate-volatility chemicals), junctions become preferred. The aggregates undergo prompt restructuring when condensation in the junctions dominates over condensation on monomer spheres. For a given monomer diameter, the coating distribution is mostly controlled by vapor supersaturation. The χ factor can be incorporated straightforwardly into atmospheric models to improve simulations of BC aging.

show abstract

Section: Resultsmentioning

confidence: 99%

“… c References to surface tension and saturated vapor data sources: TEG, , TEGMBE, , DA, , TDA, , DOS, , OA, , BEHA, , BEHP, , SA. , …”

Section: Resultsmentioning

confidence: 99%

Single Parameter for Predicting the Morphology of Atmospheric Black Carbon

Chen

Enekwizu

Fan

et al. 2018

Environ. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…The CG model uses the Stillinger-Weber (SW) potential [18], as described in the Methods section. The parameters for the model between ether molecules were chosen to optimize the experimental density [41], enthalpy of vaporization [42], and surface tension [43] for liquid 1,2-dimethoxyethane (DME) at 1 atm and 298 K. The oxygen-CH2 radial distribution function from the modified TraPPE-UA model [44] was used to parameterize against as well. For the water-ether interactions, the solvation free energy and enthalpy [45], and the DME/water density as a function of mole fraction [41], as well as calculated oxygen-water radial distribution functions from both the modified TraPPE-UA model [44] and Smith, et al model were used.…”

Section: Resultsmentioning

confidence: 99%

Coarse-Grained Simulations of Aqueous Thermoresponsive Polyethers

et al. 2018

View full text Add to dashboard Cite

Thermoresponsive polymers can change structure or solubility as a function of temperature. Block co-polymers of polyethers have a response that depends on polymer molecular weight and co-polymer composition. A coarse-grained model for aqueous polyethers is developed and applied to polyethylene oxide and polyethylene oxide-polypropylene oxide-polyethylene oxide triblock co-polymers. In this model, no interaction sites on hydrogen atoms are included, no Coulombic interactions are present, and all interactions are short-ranged, treated with a combination of twoand three-body terms. Our simulations find that The triblock co-polymers tend to associate at temperatures above 350 K. The aggregation is stabilized by contact between The hydrophobic methyl groups on The propylene oxide monomers and involves a large, favorable change in entropy.

show abstract

“…27 Thus it is thought to be good fuel additive and potential alternative fuel for its excellent combustion characteristic. 28…”

Section: Introductionmentioning

confidence: 99%

“…27 Thus it is thought to be good fuel additive and potential alternative fuel for its excellent combustion characteristic. 28 Many studies have been conducted to investigate characteristics of combustion and emission of various oxygenated fuels compared with that of diesel. However, the spray characteristics of its blending with biodiesel have not been fully clarified.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of spray characteristics of biodiesel blending with diethyl carbonate in a common rail injection system

Song

Liu

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part D:

View full text Add to dashboard Cite

The objective of this paper is to investigate the spray macroscopic characteristics of biodiesel, diethyl carbonate (DEC)-biodiesel blends and diesel fuel based on a common-rail injection system. The spray tip penetration, spray cone angle and the spray projected area were measured through a high-speed photography method. The experimental results reveal that injection pressure and ambient pressure have significant effects on the spray characteristics. Higher injection pressure makes the spray tip penetration increase, while higher back pressure inside the chamber leads to the enlargement of the spray cone angle. The addition of DEC causes the blends fuels to have a shorter penetration and larger spray projected area, which reveals the potential capacity to improve the atomization process compared with biodiesel. The estimation of spray droplet size indicates that DEC30 generates a smaller Sauter mean diameter (SMD) because of its lower surface tension and viscosity. Model predictions were illustrated and compared with current work.

show abstract

Surface tension of diethyl carbonate, 1,2-dimethoxyethane and diethyl adipate

Cited by 15 publications

References 17 publications

Single Parameter for Predicting the Morphology of Atmospheric Black Carbon

Single Parameter for Predicting the Morphology of Atmospheric Black Carbon

Coarse-Grained Simulations of Aqueous Thermoresponsive Polyethers

Experimental study of spray characteristics of biodiesel blending with diethyl carbonate in a common rail injection system

Contact Info

Product

Resources

About