Application of precise line shape measurements to determine the vapor pressure of ice in the temperature range from 0 to −70° C

2010 ◽  
Author(s):  
K. Bielska ◽  
D. K. Havey ◽  
G. E. Scace ◽  
D. Lisak ◽  
J. T. Hodges ◽  
...  
Keyword(s):  
Vapor Pressure ◽  
Line Shape ◽  
Temperature Range

THE ALUMINUM REDUCTION OF MAGNESIUM OXIDE: II. THE VAPOR PRESSURE OF MAGNESIUM OVER THE SYSTEM Al–MgO–CaO

1961 ◽  
Vol 39 (11) ◽  
pp. 2290-2294 ◽  
Author(s):  
K. Grjotheim ◽  
O. Herstad ◽  
J. M. Toguri
Keyword(s):  
Vapor Pressure ◽  
Magnesium Oxide ◽  
Equilibrium Pressure ◽  
Aluminum Reduction ◽  
Temperature Range ◽  
Equilibrium Vapor Pressure

The equilibrium vapor pressure of magnesium over the reaction between the calcined dolomite and aluminum was measured by means of the transportation method. In the temperature range 886–1035 °C, the reaction was found to proceed according to the equilibrium[Formula: see text]and the measured equilibrium pressure of magnesium can be expressed by the equation[Formula: see text]

Influence of Nano-Refrigeration-Oil on Saturated Vapor Pressure of R22

2011 ◽  
Vol 694 ◽  
pp. 309-314 ◽  
Author(s):  
Jiang Feng Lou ◽  
Rui Xiang Wang ◽  
Min Zhang
Keyword(s):  
Experimental Data ◽  
Vapor Pressure ◽  
Mass Fraction ◽  
Saturated Vapor Pressure ◽  
Saturated Vapor ◽  
Experimental Results ◽  
Vapor Pressures ◽  
Temperature Range ◽  
Mass Fractions

The saturated vapor pressures of R22 uniformly mixed with refrigeration oil and nano- refrigeration-oil were measured experimentally at a temperature range from 263 to 333K and mass fractions from 1 to 5%. The experimental results showed that the saturated vapor pressure of R22/KT56 mixture was lower than that of pure R22; the pressure deviation between them increased with a raising mass fraction of refrigeration oil and temperature. After adding nano-NiFe2O4 and nano-fullerene into KT56, the pressure deviation increased at the same mass fraction and temperature. A saturated vapor pressure correlation for R22 and refrigeration oil/nano-refrigeration-oil mixture was proposed, and the calculated values agreed with the experimental data within the deviation of ± 0.77%.

Vapor Pressure of Maleic Anhydride - Temperature Range from 35° to 77°

1949 ◽  
Vol 41 (11) ◽  
pp. 2584-2586 ◽  
Author(s):  
Leon O. Winstrom ◽  
Laurence Kulp
Keyword(s):  
Maleic Anhydride ◽  
Vapor Pressure ◽  
Temperature Range

Static method to measure vapor pressure in the temperature range below 1100 K

1985 ◽  
Vol 56 (12) ◽  
pp. 2306-2309
Author(s):  
Jiro Nishimura ◽  
Takashi Numata ◽  
Hiromitsu Ogasawara ◽  
Yoshio Sakanoue
Keyword(s):  
Vapor Pressure ◽  
Static Method ◽  
Temperature Range

THE VAPOR PRESSURE OF VINYL ACETATE

1933 ◽  
Vol 9 (5) ◽  
pp. 419-423 ◽  
Author(s):  
J. Marsden ◽  
A. C. Cuthbertson
Keyword(s):  
Critical Temperature ◽  
Vapor Pressure ◽  
Vinyl Acetate ◽  
Boiling Point ◽  
Normal Boiling Point ◽  
Temperature Range ◽  
Heat Of Evaporation

This paper presents the results of the measurement of the vapor pressure of vinyl acetate, over the temperature range from 0 °C. to the normal boiling point. The determinations were carried out on vacuum distilled samples with an isoteniscope, differing slightly in detail from that used by Smith and Menzies(7).The normal boiling point is 72.5 °C. The molecular heat of evaporation has been found to be 8211 calories. The equation which represents the results is[Formula: see text]Trouton's constant and the critical temperature have been found to be 23.8 and 228.3 °C.

Triacetone triperoxide thermogravimetric study of vapor pressure and enthalpy of sublimation in 303–338K temperature range

2011 ◽  
Vol 514 (1-2) ◽  
pp. 37-43 ◽  
Author(s):  
Hilsamar Félix-Rivera ◽  
Michael L. Ramírez-Cedeño ◽  
Rhaisa A. Sánchez-Cuprill ◽  
Samuel P. Hernández-Rivera
Keyword(s):  
Vapor Pressure ◽  
Enthalpy Of Sublimation ◽  
Triacetone Triperoxide ◽  
Temperature Range ◽  
Thermogravimetric Study

scholarly journals The relationship between the surface tension and the saturated vapor pressure of model nanofluids

2019 ◽  
Vol 55 (1) ◽  
pp. 40-46
Author(s):  
O. Ya. Khliyeva ◽  
D. A. Ivchenko ◽  
K. Yu. Khanchych ◽  
I. V. Motovoy ◽  
V. P. Zhelezny
Keyword(s):  
Surface Tension ◽  
Surface Layer ◽  
Vapor Pressure ◽  
Saturated Vapor Pressure ◽  
Saturated Vapor ◽  
Practical Interest ◽  
Al2o3 Nanoparticles ◽  
Temperature Range ◽  
Specific Intermolecular Interaction ◽  
The Relationship

Information on surface tension is necessary for modeling boiling processes in nanofluids. It was shown that the problem of predicting the surface tension of complex thermodynamic systems, such as nanofluids, remains outstanding. It should be noted that the surface tension of liquids and the saturated vapor pressure are due to a specific intermolecular interaction in the region of spatial heterogeneity of the substance (surface layer). Moreover, the compositions of the surface layer of nanofluid and its liquid phase are not equal. The presence of nanoparticles in the base fluid affects the composition of the surface layer of liquids. However, there are no methods for determining the composition of the surface layer of nanofluids and this fact complicates establishing the dependence of the surface tension on the state parameters of nanofluids. It should be mentioned that the number of possible methodological errors in measurements of the saturated vapor pressure of nanofluids is significantly lower than for the surface tension measurements. Therefore, in the development of models for predicting the surface tension, scientific and practical interest has establishing the relationship between the surface tension and the saturated vapor pressure of nanofluids. In the presented work, we consider the nanofluids of isopropanol/Al2O3 nanoparticles and o-xylene/fullerenes C60. Saturated vapor pressure and surface tension of nanofluids of isopropanol/Al2O3 nanoparticles have been studied in the temperature range 293 – 363 K and concentrations of Al2O3 nanoparticles 0-8.71 g/kg. Measurement of saturated vapor pressure and surface tension of nanofluids of o-xylene/fullerenes C60 have been performed in the temperature range 283 – 348 K and the concentration of C60 0-7.5 g/kg. It is shown that additives of Al2O3  nanoparticles and fullerenes C60 lead to a decrease in the surface tension and increase in the saturated vapor pressure. It is shown that there is a universal dependence between the reduced surface tension and saturated vapor pressure for the researched nanofluids.

Sign in / Sign up

Export Citation Format

Share Document