CALCULATION USING K-FACTORS CALCULATED IN SUBROUTINE VPLOK [Pg.254]

The acentric factor is calculated using Edmister s equation (1948) [Pg.89]

The Cpg of real gas is calculated using the equation derived from the Lee and Kesler model [Pg.140]

Second virial coefficients are calculated using the equations for the Hayden-0 Connell correlation (see Appendix A). [Pg.303]

The specific enthalpy of a gas is calculated using the principle of corresponding states. The enthalpy of a gas mixture is equal to the sum of the ideal gas enthalpy and a correction term [Pg.141]

Calculate 7wh for the cyclohexane-water interface using the Good-Fowkes approach. Repeat the calculation using Eq. IV-13. Compare both results with the experimental value and comment. [Pg.156]

Bubble-point and dew-point pressures are calculated using a first-order iteration procedure described by the footnote to Equation (7-25). [Pg.330]

The case considered above corresponds to R < H. The calculation using formula (1) gives the next results. For example, consider the thickness of dry developer layer h = 20 pm. In the absence of sedimentation process our product family (penetrant and developer indicated above) could not detect the cracks with the depth lo < 1,33 mm of any widths. Nevertheless due to the sedimentation one can get the decrease of developer s thickness from h = 20 pm till h s 5 pm. As a result, our product family can ensure the detection of the cracks with H > 2,3 pm even with very small length lo = 0,4 mm. At the same time if lo = 1 mm, then the cracks with extremely small width H > 0,25 will be revealed. [Pg.615]

Finally, at low pressures, the liquid fugacity can be calculated using Equation (5), i.e. we can assume that <() = 1 and that the Poynting correction = 1. [Pg.219]

Figure A2.5.6 shows a series of typical p, Fisothemis calculated using equation (A2.5.1). (The temperature, pressure and volume are in reduced units to be explained below.) At sufficiently high temperatures the pressure decreases monotonically with increasing volume, but below a critical temperature the isothemi shows a maximum and a minimum. |

With four transducers the coordinates for the eccentricity can be calculated using X=Vi X- minus X+) and Y=>/2 (Y- minus Y+) [Pg.895]

However, when carboxylic acids are present in a mixture, fugacity coefficients must be calculated using the chemical theory. Chemical theory leads to a fugacity coefficient dependent on true equilibrium concentrations, as shown by Equation (3-13). [Pg.133]

The ultrasound wave with the amplitude po enters the contrast agent at the point xq. cu can be calculated using [Pg.867]

Calculate factors for those streams which require a specification different from that of the reference using Eq. (7.23) or Eq. (7.24). If Eq. (7.23) is to be used, then the actual network area Anetwork must first be calculated using either Eq. (7.6) or Eq. (7.19) and (VuNiTs or - SHELLS, whichever is appropriate. [Pg.230]

Once y/" has been determined, the impedance change in an eddy-current coil due to the crack can be calculated using the following integral over the crack mouth [3] [Pg.142]

The 3D positions of internal defects are calculated with a stereoscopic approach supporting arbitrary sample manipulations using an arbitrary number of views. The volumes of the defects are calculated using intensity evaluation. [Pg.488]

To use Equation (10b), we require virial coefficients which depend on temperature. As discussed in Appendix A, these coefficients are calculated using the correlation of Hayden and O Connell (1975). The required input parameters are, for each component critical temperature T, critical pressure P, [Pg.29]

When the critical constants for a pure substance or the pseudocritical constants for a petroleum fraction are known, the vapor pressure for hydrocarbons and petroleum fractions can be calculated using the Lee and Kesler equations [Pg.158]

A quantitative theory of rate processes has been developed on the assumption that the activated state has a characteristic enthalpy, entropy and free energy the concentration of activated molecules may thus be calculated using statistical mechanical methods. Whilst the theory gives a very plausible treatment of very many rate processes, it suffers from the difficulty of calculating the thermodynamic properties of the transition state. [Pg.402]

Each fluid is described by a BWR equation of state whose coefficients are adjusted to obtain simultaneously the vapor pressure, enthalpies of liquid and gas as well as the compressibilities. The compressibility z of any fluid is calculated using the equation below [Pg.119]

Equilibrium constants,, for all possible dimerization reactions are calculated from the metastable, bound, and chemical contributions to the second virial coefficients, B , as given by Equations (6) and (7). The equilibrium constants, K calculated using Equation (3-15). [Pg.133]

For direct measurement from core samples, the samples are mounted in a holder and gas is flowed through the core. The pressure drop across the core and the flowrate are measured. Providing the gas viscosity (ji) and sample dimensions are known the permeability can be calculated using the Darcy equation shown below. [Pg.151]

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