Results 111 to 120 of about 1,181 (162)

Gaseous pVTx measurements for (HFC134a + HC290) by a compact single-sinker densimeter

The Journal of Chemical Thermodynamics, 2015
Abstract Comprehensive gaseous pVTx measurements for {1,1,1,2-tetrafluoroethane (HFC134a) + propane (HC290)} were carried out by a compact single-sinker densimeter, based on the Archimedes’ buoyancy principle, at temperatures from (258 to 294) K, pressures up to 0.86 MPa, and mole fractions of HFC134a from (0.2391 to 0.7989).
Haiyang Zhang, Maoqiong Gong, Huiya Li, Hao Guo, Xueqiang Dong, Jianfeng Wu   +5 more
openaire   +1 more source

A Helmholtz free energy equation of state for the vapor-liquid equilibrium and PVTx properties of the H2S H2O mixture and its application to the H2S H2O NaCl system

Applied Geochemistry, 2019
An equation of state (EOS) explicit in Helmholtz free energy has been developed to calculate the vapor-liquid equilibrium (VLE) and pressure-volume-temperature-composition (PVTx) properties of the H2S H2O fluid mixture.
Chuanrong Peng, Shide Mao, Jiawen Hu, Limei He   +3 more
semanticscholar   +1 more source

Hydrocarbons in silica: PVTX properties of fluids and the genesis of diamond quartz from Caravia-Berbes Fluorite district (Asturias, Spain)

Marine and Petroleum Geology, 2019
The fluid history of “diamond” quartz crystals from Caravia-Berbes Fluorite district is intimately related with episodes of maturation and migration of hydrocarbons within the Asturian basin, probably linked to the structural activation of a Mesozoic ...
G. Levresse, J. Tritlla, Aldo Ramos Rosique, E. Cardellach, C. Rollion-Bard, J. Pironon, S. J. Sandoval   +6 more
semanticscholar   +1 more source

PVTx and thermal-pressure coefficient measurements of the binary CO2 + n-decane mixtures in the critical and retrograde regions

Journal of Chemical Thermodynamics, 2018
PVTx and temperature derivative of pressure (thermal-pressure coefficient), γ VX = ( ∂ P / ∂ T ) VX , of binary CO2 + n-decane mixtures have been measured in the critical, supercritical, and retrograde condensation regions (near the critical and ...
I. Abdulagatov, N. G. Polikhronidi, R. G. Batyrova   +2 more
semanticscholar   +1 more source

PVTx Properties of Gaseous Mixtures of Difluoromethane and 1,1,1,2,3,3,3-Heptafluoropropane

Journal of Chemical & Engineering Data, 2007
Mixtures of difluoromethane (HFC-32) and 1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea) are promising alternative refrigerants; however, there is currently no available published experimental PVTx data. The gaseous PVTx properties of HFC-32 (1) + HFC-227ea (2) mixtures were measured using the Burnett-isochoric method with 251 data sets obtained for ...
Xiao-Juan Feng, Yuan-Yuan Duan, Wei Dong
openaire   +1 more source

Gaseous PVTx measurements for propane (R290) + trifluoroiodomethane (R13I1) system

Fluid Phase Equilibria, 2019
An experimental study of the pressure–volume–temperature-composition ( P V T x ) properties in the gas phase for the R290 + R13I1 system was performed with an isochoric method.
J. Wang, Yuheng Lu, Chao Zhang, Ting Li
semanticscholar   +1 more source

PVTx Measurements for a H2O + Methanol Mixture in the Subcritical and Supercritical Regions

International Journal of Thermophysics, 2004
PVTx relationships for a H2O + CH3OH mixture (0.36 mole fraction of methanol) were measured in a range of temperatures from 373 to 673 K and pressures between 0.042 and 90.9 MPa. The density ranged from 37.76 to 559.03 kg · m−3. Measurements were made with a constant-volume piezometer surrounded by a precision thermostat.
A. R. Bazaev, I. M. Abdulagatov, J. W. Magee, E.A. Bazaev, A. E. Ramazanova, A. A. Abdurashidova   +5 more
openaire   +1 more source

Gaseous pvTx Properties for Binary and Ternary Mixtures of R1234yf, R32, and CO2

Journal of Chemical & Engineering Data, 2023
Shuzhou Peng, Erqi Wang, K. Qing, Zhen Yang, Yuanyuan Duan   +4 more
semanticscholar   +1 more source

Gaseous pvTx properties for the R1243zf pure fluid and binary mixtures of the R152a + R1243zf and R125 + R1243zf

Journal of Chemical Thermodynamics, 2023
Shuzhou Peng, Erqi Wang, Kang Qing, Zhen Yang, Yuanyuan Duan   +4 more
semanticscholar   +1 more source

PVTx‐Properties and virial coefficients of the water‐n‐hexane system

Berichte der Bunsengesellschaft für physikalische Chemie, 1994
AbstractPVTx‐data for the water‐n‐hexane system are reported in this paper. The data cover a temperature range from 523 to 623 K and pressure range from 2 to 16 MPa at different concentrations. The low pressure compressibility measurements were used to determine second and third virial coefficients for the water‐n‐hexane system.
I. M. Abdulagatov, A. R. Bazaev, A. E. Ramazanova   +2 more
openaire   +1 more source