Download or read book Measurements of the Viscosity of Gas Mixtures written by William A. Strauss and published by . This book was released on 1957 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Viscosity of Gas Mixtures written by Richard S. Brokaw and published by . This book was released on 1968 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of Viscosity of Gaseous Mixtures at Atmospheric Pressure written by Jag J. Singh and published by . This book was released on 1986 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermal Conductivity and Viscosity of Gas Mixtures written by Henry Cheung and published by . This book was released on 1958 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Viscosity of Gases and Gas Mixtures written by I. F. Golubev and published by . This book was released on 1970 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Simple and Accurate Method for Calculating Viscosity of Gaseous Mixtures written by Thomas A. Davidson and published by . This book was released on 1993 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Investigation on High pressure High temperature Viscosity of Gas Mixtures written by Ehsan Davani and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Modeling the performance of high-pressure, high-temperature (HPHT) natural gas reservoirs requires the understanding of gas behavior at such conditions. In particular, gas viscosity is an important fluid property that directly affects fluid flow through porous media and along production flowlines. Accurate measurements of gas viscosity at HPHT conditions are both extremely difficult and expensive. Unfortunately, the correlations available today do not have a sufficiently broad range of applicability in terms of pressure and temperature since no measured gas viscosities at HPHT are currently available. Thus the correlation accuracy may be doubtful for the prediction of gas viscosity at HPHT conditions. An oscillating-piston viscometer was used to measure the viscosity of mixtures of nitrogen and methane, and mixtures of CO2 and methane at a pressure range of 5,000 to 25,000 psi, and a temperature range of 100 to 360 degrees F. The viscosity of mixtures of nitrogen and methane, and mixtures of CO2 and methane measured to take into account of the fact that the concentration of non-hydrocarbons increase significantly in HPHT reservoir. The recorded measured data were then used to evaluate the reliability of the most commonly used correlations in the petroleum industry. Measured gas viscosity data at HPHT conditions suggest that the most common gas viscosity correlations return up to 9% relative error in gas recovery factor, which translates into a significant error in estimating the ultimate recovery for large HPHT natural gas reservoirs. Thus, the current gas viscosity correlations need to be adjusted to estimate gas viscosity at HPHT conditions. New gas viscosity correlations constructed for HPHT conditions developed based upon our experiment data provide more confidence on gas viscosity. A rolling ball viscometer was also used to assess its capability to measure gas viscosity. Using gas instead of liquid to calibrate a rolling ball viscometer over the entire pressure and temperature range of interest appears to be satisfactory. Optimizing tube inclination angle and ball/tube diameter ratio prevents turbulent flow effects around the ball, thus enhancing the accuracy of the measurement. The proposed calibration method was then verified with pure CO2 at a pressure range of 4,000 to 8,000 psi, and a temperature range of 98 to 240° F. Consequently, rolling ball viscometer was introduced as a good candidate to measure the gas viscosity; however it has not been tested at HPHT conditions yet.
Download or read book Approximate Formulas for Viscosity and Thermal Conductivity of Gas Mixtures written by Richard S. Brokaw and published by . This book was released on 1964 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of Viscosity of Gaseous Mixtures at Atmospheric Pressure written by Jag J. Singh and published by . This book was released on 1986 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Viscosity of Gases and Gas Mixtures written by Semseddin A. Ercan and published by . This book was released on 1953 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Viscosity of Liquids written by Dabir S. Viswanath and published by Springer Science & Business Media. This book was released on 2007-03-31 with total page 669 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is unique in that it brings together published viscosity data, experimental methods, theoretical, correlation and predictive procedures in a single volume. The readers will get a better understanding of why various methods are used for measuring viscosity of different types of liquids and why an experimental method is dependent on fluid characteristics, such as Newtonian or non-Newtonian fluids.
Download or read book Measurements of Viscosity Velocity Slip Coefficients and Tangential Momentum Accommodation Coefficients for Gas Mixtures Using a Spinning Rotor Gauge written by Julie A. Bentz and published by . This book was released on 1999 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of experimental measurements for He-Ar, He-N 2, and He-Ne binary gas mixtures which have been made with a spinning rotor gauge (SRG; MKS Instruments, Inc.) are reported. All of the experiments were conducted in the slip regime. Theoretical results are used to extract values of the viscosity and the velocity slip coefficient from the experimentally obtained data for each of the gas mixtures. Slip coefficients for binary gas mixtures have not previously been reported. An important issue here is whether or not the velocity slip coefficients for binary gas mixtures can be predicted accurately using separately measured tangential momentum accommodation coefficients. Calculation of slip coefficients from theory requires a knowledge of the accommodation coefficients of each constituent of the mixture. The dependence of these coefficients on the gas composition is not known and the simplest assumption is to regard them as being independent of the composition. The slip coefficients computed in conjunction with this work use this simple assumption in a theoretical expression for the slips. These computations led to reasonable agreement of the theoretical results with our data for the He-Ne mixture. Agreement in the cases of the He-Ar and He-N 2 mixtures, however, was less than satisfactory. Also reported are a selection of experimental viscosity and slip measurements for He and Ar made with a modified spinning rotor gauge. Currently available SRGs operate in a horizontal mode where the axis of the tube containing the spherical rotor is orthogonal to the angular momentum vector of the rotor. The theory, however, specifies that the angular momentum vector of the rotor should lie along the cylinder axis. This alignment difference doesn't prohibit the desired measurements from being made but does require that existing SRGs be calibrated against a known standard gas to account for the geometric differences. The geometry factor in the theory is known explicitly, however, when the rotor angular momentum vector is aligned with the cylinder axis. The implication of this is that a properly designed and aligned system can be used to measure viscosities and slips directly without reference to a known standard gas. Measurements made with this modified version of the SRG are compared with previous experimental results from the standard SRG.
Download or read book Viscosity written by Y. S. Touloukian and published by Springer. This book was released on 1975 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt: that about 100 journals are required to yield fifty In 1957, the Thermophysical Properties Research Center (TPRC) of Purdue University, under the percent. But that other fifty percent! It is scattered leadership of its founder, Professor Y. S. Touloukian, through more than 3500 journals and other docu began to develop a coordinated experimental, ments, often items not readily identifiable or ob theoretical, and literature review program covering tainable. Over 75,000 references are now in the files. a set of properties of great importance to science and technology. Over the years, this program has grown Thus, the man who wants to use existing data, steadily, producing bibliographies, data compila rather than make new measurements himself, faces tions and recommendations, experimental measure a long and costly task if he wants to assure himself ments, and other output. The series of volumes for that he has found all the relevant results. More often which these remarks constitute a foreword is one of than not, a search for data stops after one or two these many important products. These volumes are a results are found-or after the searcher decides he monumental accomplishment in themselves, re has spent enough time looking. Now with the quiring for their production the combined knowledge appearance of these volumes, the scientist or engineer who needs these kinds of data can consider himself and skills of dozens of dedicated specialists. The Thermophysical Properties Research Center de very fortunate.
Download or read book A Simple and Accurate Method for Calculating Viscosity of Gaseous Mixtures written by Thomas A. Davidson and published by . This book was released on 1993 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Viscosity of Gas Mixtures at Variable Pressure and Temperature written by Warren W. Clauson and published by . This book was released on 1955 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The viscosity of gas mixtures at high pressures written by Norman Loren Carr and published by . This book was released on 1952 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gas Mixtures written by Gary Nelson and published by CRC Press. This book was released on 1992-04-14 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas Mixtures provides practical suggestions and calculations for producing multicomponent test gas atmospheres. General topics addressed include sorbent evaluation, methods development, dosimeter testing, instrument calibration, atmospheric simulation, and gas analysis. Learn the tricks of the trade for producing gas mixtures over a wide range of concentrations using even the most difficult-to-handle materials. Gas Mixtures is a must for industrial hygienists, air pollution control specialists, analytical chemists, and others working in such areas as health and safety, air pollution, air cleaning, and respirator and carbon research.
