The Experts below are selected from a list of 136932 Experts worldwide ranked by ideXlab platform
Daniel G Friend - One of the best experts on this subject based on the ideXlab platform.
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thermodynamic properties of air and mixtures of nitrogen argon and oxygen from 60 to 2000 k at pressures to 2000 mpa
Journal of Physical and Chemical Reference Data, 2000Co-Authors: Eric W Lemmon, R T Jacobsen, S G Penoncello, Daniel G FriendAbstract:A thermodynamic property formulation for standard dry air based upon available experimental p–ρ–T, heat capacity, speed of sound, and vapor–liquid equilibrium data is presented. This formulation is valid for liquid, vapor, and supercritical air at temperatures from the solidification point on the Bubble-Point Curve (59.75 K) to 2000 K at pressures up to 2000 MPa. In the absence of reliable experimental data for air above 873 K and 70 MPa, air properties were predicted from nitrogen data in this region. These values were included in the determination of the formulation to extend the range of validity. Experimental shock tube measurements on air give an indication of the extrapolation behavior of the equation of state up to temperatures and pressures of 5000 K and 28 GPa. The available measurements of thermodynamic properties of air are summarized and analyzed. Separate ancillary equations for the calculation of dew and Bubble-Point pressures and densities of air are presented. In the range from the solidif...
Eric W Lemmon - One of the best experts on this subject based on the ideXlab platform.
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thermodynamic properties of air and mixtures of nitrogen argon and oxygen from 60 to 2000 k at pressures to 2000 mpa
Journal of Physical and Chemical Reference Data, 2000Co-Authors: Eric W Lemmon, R T Jacobsen, S G Penoncello, Daniel G FriendAbstract:A thermodynamic property formulation for standard dry air based upon available experimental p–ρ–T, heat capacity, speed of sound, and vapor–liquid equilibrium data is presented. This formulation is valid for liquid, vapor, and supercritical air at temperatures from the solidification point on the Bubble-Point Curve (59.75 K) to 2000 K at pressures up to 2000 MPa. In the absence of reliable experimental data for air above 873 K and 70 MPa, air properties were predicted from nitrogen data in this region. These values were included in the determination of the formulation to extend the range of validity. Experimental shock tube measurements on air give an indication of the extrapolation behavior of the equation of state up to temperatures and pressures of 5000 K and 28 GPa. The available measurements of thermodynamic properties of air are summarized and analyzed. Separate ancillary equations for the calculation of dew and Bubble-Point pressures and densities of air are presented. In the range from the solidif...
R T Jacobsen - One of the best experts on this subject based on the ideXlab platform.
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thermodynamic properties of air and mixtures of nitrogen argon and oxygen from 60 to 2000 k at pressures to 2000 mpa
Journal of Physical and Chemical Reference Data, 2000Co-Authors: Eric W Lemmon, R T Jacobsen, S G Penoncello, Daniel G FriendAbstract:A thermodynamic property formulation for standard dry air based upon available experimental p–ρ–T, heat capacity, speed of sound, and vapor–liquid equilibrium data is presented. This formulation is valid for liquid, vapor, and supercritical air at temperatures from the solidification point on the Bubble-Point Curve (59.75 K) to 2000 K at pressures up to 2000 MPa. In the absence of reliable experimental data for air above 873 K and 70 MPa, air properties were predicted from nitrogen data in this region. These values were included in the determination of the formulation to extend the range of validity. Experimental shock tube measurements on air give an indication of the extrapolation behavior of the equation of state up to temperatures and pressures of 5000 K and 28 GPa. The available measurements of thermodynamic properties of air are summarized and analyzed. Separate ancillary equations for the calculation of dew and Bubble-Point pressures and densities of air are presented. In the range from the solidif...
S G Penoncello - One of the best experts on this subject based on the ideXlab platform.
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thermodynamic properties of air and mixtures of nitrogen argon and oxygen from 60 to 2000 k at pressures to 2000 mpa
Journal of Physical and Chemical Reference Data, 2000Co-Authors: Eric W Lemmon, R T Jacobsen, S G Penoncello, Daniel G FriendAbstract:A thermodynamic property formulation for standard dry air based upon available experimental p–ρ–T, heat capacity, speed of sound, and vapor–liquid equilibrium data is presented. This formulation is valid for liquid, vapor, and supercritical air at temperatures from the solidification point on the Bubble-Point Curve (59.75 K) to 2000 K at pressures up to 2000 MPa. In the absence of reliable experimental data for air above 873 K and 70 MPa, air properties were predicted from nitrogen data in this region. These values were included in the determination of the formulation to extend the range of validity. Experimental shock tube measurements on air give an indication of the extrapolation behavior of the equation of state up to temperatures and pressures of 5000 K and 28 GPa. The available measurements of thermodynamic properties of air are summarized and analyzed. Separate ancillary equations for the calculation of dew and Bubble-Point pressures and densities of air are presented. In the range from the solidif...
Abhay Sharma - One of the best experts on this subject based on the ideXlab platform.
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development of a new semi analytical model for prediction of bubble point pressure of crude oils
Journal of Petroleum Science and Engineering, 2011Co-Authors: Parag Andyopadhyay, Abhay SharmaAbstract:Abstract Estimation of bubble point pressure is of primary importance for development of oilfield development strategies such as Enhanced Oil Recovery. Traditional techniques for estimation of this critically important property are often not as accurate as is required and may require extended compositional analyses to be conducted beforehand. In this work, a semi-analytical model for prediction of bubble point pressure is proposed. The model uses temperature–concentration interaction terms to portray the fluid behavior. A comprehensive literature review is conducted first to understand the limitations of the currently available models. Based on analytical inputs from theoretical concepts and the study of experimental data a new parametric expression containing exponential temperature–concentration interaction is proposed. A large data set, comprising of 129 crude oil samples of different varieties and geographical origins, is compiled from the existing literature for the calibration of the model, using non-linear regression techniques. The results indicate that the model is more accurate than known techniques for estimation of bubble point pressure. The validity of the model to the experimental data and physical phenomena is verified. One of the salient features of the present model is accurate computation of bubble point pressure sensitivity with respect to change in crude composition. Thus, the proposed model correctly simulates the experiments such as gas injection swelling tests and bubble point Curve determination under different compositions. The results of the present investigation will facilitate strategies for production enhancement activities.
