Experimental Determination of the Transport Properties of Gases PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Experimental Determination of the Transport Properties of Gases PDF full book. Access full book title Experimental Determination of the Transport Properties of Gases by Edmund H. Carnevale. Download full books in PDF and EPUB format.
Author: Edmund H. Carnevale
Publisher:
ISBN:
Category :
Languages : en
Pages : 65
Get Book Here
Book Description
Methods of experimentally determining the transport properties of high temperature gases are discussed. A constant area helium driven shock tube is used as the high temperature gas source. The two methods presently under investigation are heat transfer and ultrasonic. Heat transfer rate measurements have been obtained in argon, nitrogen, and oxygen for temperatures up to 8000 K. Preliminary thermal conductivity data are presented for oxygen for temperatures up to 4000 K. The ultrasonic method has been used in determining temperatures of shock heated argon (up to 9000 K) and nitrogen (up to 3000 K). The extension of the ultrasonic method in determining transport properties of gases at elevated temperatures is indicated. (Author).
Author: Edmund H. Carnevale
Publisher:
ISBN:
Category :
Languages : en
Pages : 65
Get Book Here
Book Description
Methods of experimentally determining the transport properties of high temperature gases are discussed. A constant area helium driven shock tube is used as the high temperature gas source. The two methods presently under investigation are heat transfer and ultrasonic. Heat transfer rate measurements have been obtained in argon, nitrogen, and oxygen for temperatures up to 8000 K. Preliminary thermal conductivity data are presented for oxygen for temperatures up to 4000 K. The ultrasonic method has been used in determining temperatures of shock heated argon (up to 9000 K) and nitrogen (up to 3000 K). The extension of the ultrasonic method in determining transport properties of gases at elevated temperatures is indicated. (Author).
Author: Charles A. Carey
Publisher:
ISBN:
Category :
Languages : en
Pages : 96
Get Book Here
Book Description
Methods of experimentally determining the transport properties of high temperature gases have been developed and measurements of viscosity, thermal conducitvity, and diffusion coefficients obtained. The heat transfer rate through laminar boundary layers, the absorption of sound, and a schlieren method have been investigated for the determination of transport properties. Heat transfer measurements on the side wall of the shock tube have been used to obtain viscosities of argon, oxygen, nitrogen, and carbon dioxide up to 4000 K. The boundary layer equations were solved for side wall boundary layers in the shock tube in oxygen to assess the relative importance of viscosity and thermal conductivity in heat transfer to the side wall. Thermal conductivities were deduced from end wall heat transfer measurements in carbon dioxide up to 2000 K and oxygen up to 4000 K. End wall heat transfer measurements in nitrogen and argon have been compared to theory with excellent agreement. Various methods for measuring ultrasonic absorption are discussed. The viscosity of argon at temperatures up to 8000 K were determined with the ultrasonic method. Diffusion coefficient in 50-50 He-Ar mixtures have also been obtained from the ultrasonic measurements at room temperature with excellent agreement with other investigators. The theory of a schlieren method for the measurement of thermal conductivity using the end wall boundary layer in the shock tube is discussed. (Author).
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 132
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 137
Get Book Here
Book Description
A new technique for the accurate (1-0.01%) determination of transport and thermodynamic properties of gases is described. This technique consists of measuring the linewidth of a small acoustic resonator. The linewidth of more than one type of resonance allows the transport properties (thermal conductivity and viscosity) to be determined independently. The center frequency gives the sound speed. The theory of the acoustic resonator is presented including the effects of relaxation in the gas, slip and accommodation on the cavity walls, and acoustic transmission into the walls. The contributions of transducer coupling and feed through are also included in the cavity theory. Realization of cavities and transducers suitable (but not optimized) for measurements at temperatures up to 1000K and pressures up to 500 atm are discussed. Measurements employing the resonator technique are presented in Ar, N2, air and H2. High pressure measurements (p
Author: Marc J Assael
Publisher: Royal Society of Chemistry
ISBN: 1782625259
Category : Science
Languages : en
Pages : 426
Get Book Here
Book Description
Written by the leading experts in the field, this book will provide a valuable, current account of the advances in the measurement and prediction of transport properties that have occurred over the last twenty years. Critical to industry, these properties are fundamental to, for example, the development of fossil fuels, carbon sequestration and alternative energy sources. This unique and comprehensive account will provide the experimental and theoretical background of near-equilibrium transport properties which provide the background when investigating industrial applications. Coverage includes new experimental techniques and how existing techniques have developed, new fluids eg molten metals, dense fluids, and critical enhancements of transport properties of pure substances. Practitioners and researchers in chemistry and engineering will benefit from this state of the art record of recent advances in the field of transport properties.
Author: Hui Li
Publisher: Oxford University Press
ISBN: 0198888260
Category : Science
Languages : en
Pages : 353
Get Book Here
Book Description
The first two chapters of this book are an update and outgrowth of the monograph Nonequilibrium Phenomena in Polyatomic Gases published by OUP in 1990, and a response to considerable improvements in the experimental determination of the transport properties of dilute gases that have taken place during the past 30 years. The experimental determination has improved sufficiently that it has become necessary to carry out calculations at the level of the second Chapman-Cowling approximation in order to give computed results that lie within the current experimental uncertainties now being reported. Chapter 3 is devoted to realistic interatomic potential energy functions, and begins with a discussion of the need for more accurate representations of these functions. Direct inversion of both microscopic data (spectroscopic transition frequencies and atomic beam scattering) and bulk property data (pressure and acoustic second virial coefficients, transport properties) are discussed in detail. The quantum chemical ab initio determination of binary atomic interaction energies and their analytical representation are discussed, followed by a detailed considerations of the interaction energies between pairs of noble gas atoms. Chapter 4 is concerned with connections between theory and experiment, including a detailed discussion of pure noble gases and their binary mixtures. Chapter 5 focuses on how to obtain the spectroscopic and thermophysical properties of a specific molecular system theoretically step by step, and provides a reference for the specific theoretical calculation work.
Author: C. Carey
Publisher:
ISBN:
Category :
Languages : en
Pages : 84
Get Book Here
Book Description
Transport property measurements with ultrasonic techniques are discussed over the entire temperature (100-15,000 degrees) and pressure (1-1000 atm) ranges. A chart of various techniques for the determination of transport properties in the various temperature and pressure ranges is given. Sound absorption and sound speed determinations were used to obtain thermophysical properties of argon, helium, nitrogen and air at room temperature and pressures between 1-500 atm. Several variations of pulsed ultrasonic techniques were used to obtain maximum precision in the gas property measurements. Sound speeds accurate to approximately 0.1% were obtained in all the gases. Thermal conductivity and specific heat ratios were deduced for air. A cavity technique was developed for high accuracy (
Author: C. Carey
Publisher:
ISBN:
Category :
Languages : en
Pages : 121
Get Book Here
Book Description
The problem of extending transport property measurements to conditions of high pressure p
Author: Morris William Travers
Publisher:
ISBN:
Category : Gas
Languages : en
Pages : 366
Get Book Here
Book Description
Author: Claire Vallance
Publisher: Morgan & Claypool Publishers
ISBN: 1681746956
Category : Science
Languages : en
Pages : 66
Get Book Here
Book Description
An Introduction to the Gas Phase is adapted from a set of lecture notes for a core first year lecture course in physical chemistry taught at the University of Oxford. The book is intended to give a relatively concise introduction to the gas phase at a level suitable for any undergraduate scientist. After defining the gas phase, properties of gases such as temperature, pressure, and volume are discussed. The relationships between these properties are explained at a molecular level, and simple models are introduced that allow the various gas laws to be derived from first principles. Finally, the collisional behavior of gases is used to explain a number of gas-phase phenomena, such as effusion, diffusion, and thermal conductivity.
