Re-examination of Nucleation and Condensation of Water 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 Re-examination of Nucleation and Condensation of Water PDF full book. Access full book title Re-examination of Nucleation and Condensation of Water by Welby G. Courtney. Download full books in PDF and EPUB format.
Author: Welby G. Courtney
Publisher:
ISBN:
Category :
Languages : en
Pages : 1
Get Book Here
Book Description
This paper presents a critical re-examination of several nucleation theories (excluding the surface-energy problem) and concludes that Kuhrt's thermodynamic theory for cluster formation in monoatomic vapor, which follows the classical liquid-drop model but conserves degrees of freedom, is procedurally correct. The Kuhrt approach is extended to polyatomic vapors. Assuming that non-atomic vibration modes are equally probable in the condensed phase, the resulting correction factors to the classical rate of nucleation are about 10 to the 4th power, 10 to the 7th power, and 10 to the 9th power particles/cc sec for a monoatomic, linear, and non-linear condensing molecule. The nucleation of water vapor is examined in detail, and the theoretical rate of condensation is computed for adiabatic constantvolume conditions. The 10 to the 9th power increase in nucleation kinetics leads to a 10 to the 2nd power decrease in the time required for 50% of condensation. It is concluded that published experimental data are insufficient to compare to the present theory. (Author).
Author: Welby G. Courtney
Publisher:
ISBN:
Category :
Languages : en
Pages : 1
Get Book Here
Book Description
This paper presents a critical re-examination of several nucleation theories (excluding the surface-energy problem) and concludes that Kuhrt's thermodynamic theory for cluster formation in monoatomic vapor, which follows the classical liquid-drop model but conserves degrees of freedom, is procedurally correct. The Kuhrt approach is extended to polyatomic vapors. Assuming that non-atomic vibration modes are equally probable in the condensed phase, the resulting correction factors to the classical rate of nucleation are about 10 to the 4th power, 10 to the 7th power, and 10 to the 9th power particles/cc sec for a monoatomic, linear, and non-linear condensing molecule. The nucleation of water vapor is examined in detail, and the theoretical rate of condensation is computed for adiabatic constantvolume conditions. The 10 to the 9th power increase in nucleation kinetics leads to a 10 to the 2nd power decrease in the time required for 50% of condensation. It is concluded that published experimental data are insufficient to compare to the present theory. (Author).
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 908
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 828
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 384
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 21
Get Book Here
Book Description
This is a final report of a one-year, Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The purpose of this project was to bring to maturity a theoretical and experimental capability of the Laboratory to perform basic research in nucleation and condensation of water vapor. This report provides a general description of this capability and summarizes specific work in two areas: development and use of a combustive flow facility (CFF) to measure water monomer depletion in a supersonic nozzle and nucleation pulse experiments for investigation of transport effects on water droplet growth dynamics. The later work was performed in collaboration with Dr. Wehrner Strey in Goettingen, Germany. Preliminary water absorption data from the CFF experiment are presented. The nucleation pulse data is described along with an analysis that shows under the condition of the experiment the growth rate of water droplets is limited by monomer diffusion.
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 954
Get Book Here
Book Description
Author: Ari Laaksonen
Publisher: Elsevier
ISBN: 0128143223
Category : Science
Languages : en
Pages : 296
Get Book Here
Book Description
Nucleation of Water: From Fundamental Science to Atmospheric and Additional Applications provides a comprehensive accounting of the current state-of-the-art regarding the nucleation of water. It covers vapor-liquid, liquid-vapor, liquid-ice and vapor-ice transitions and describes basic kinetic and thermodynamic concepts in a manner understandable to researchers working on specific applications. The main focus of the book lies in atmospheric phenomena, but it also describes engineering and biological applications. Bubble nucleation, although not of major atmospheric relevance, is included for completeness. This book presents a single, go-to resource that will help readers understand the breadth and depth of nucleation, both in theory and in real-world examples. Offers a single, comprehensive work on water nucleation, including cutting- edge research on ice, cloud and bubble nucleation Written primarily for atmospheric scientists, but it also presents the theories in such a way that researchers in other disciplines will find it useful Written by one of the world’s foremost experts on ice nucleation
Author: Carl Barus
Publisher:
ISBN:
Category : Atmospheric nucleation
Languages : en
Pages : 160
Get Book Here
Book Description
Author: Bruce Berne
Publisher: Springer Science & Business Media
ISBN: 1468425536
Category : Science
Languages : en
Pages : 253
Get Book Here
Book Description
The last decade has been marked by a rapid growth in statistical mechanics, especially in connection with the physics and chemistry of the fluid state. Our understanding in these areas has been considerably advanced and enriched by the discovery of new techniques and the sharpening of old techniques, ranging all the way from computer simulation to mode-mode coupling theories. Statistical mechanics brings together under one roof a broad spectrum of mathematical techniques. The aim of these volumes is to provide a didactic treatment of those techniques that are most useful for the study of problems of current interest to theoretical chemists. The emphasis throughout is on the techniques themselves and not on reviewing the enormous literature in statistical mechanics. Each author was charged with the following task. Given N pages, (a) pose the problem, (b) present those aspects of the particular technique that clearly illustrate its internal workings, (c) apply the technique to the solution of several illustrative examples, and (d) write the chapter so that it will enable the reader to approach key citations to the literature intelligently. These volumes are designed for graduate students and research workers in statistical mechanics. Nevertheless, because of the range of techniques and their general utility, they should be useful in other areas as well.
Author: Julian Heicklen
Publisher: Elsevier
ISBN: 0323160956
Category : Science
Languages : en
Pages : 153
Get Book Here
Book Description
Colloid Formation and Growth: A Chemical Kinetics Approach focuses on the science of colloid dynamics developed from the viewpoint of chemical kinetics. This book is composed of seven chapters and begins with a discussion of the two physical loss problems of kinetic interest, namely, the diffusional loss to the walls of reaction system and gravitational settling. Considerable chapters describe the processes of homogeneous and heterogeneous nucleation, condensation, coagulation, vaporization, and spontaneous fracture. These chapters provide simplified, easy-to-use, approximate formulas for these processes. The final chapter emphasizes the calculation of accommodation coefficients of clean liquids, small solid particles, and large solid crystalline. This book will be of great value to applied chemists, and researchers.
