Download or read book Theory of Vapor Condensation in the Presence of Non condensing Gases written by D. A. Frank-Kamenetskii and published by . This book was released on 1970 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of the paper is a consideration of the condensation of a vapor diluted with non-condensing gases, with strict account of the basic diffusion process, but without account of the secondary factors of external heat transfer. For this we will assume the heat transfer of the surrounding medium from the wall to be so intensive that the temperature of the surface on which the condensation occurs, i.e., the internal surface of the film of condensate, can be assumed constant and equal to the given temperature of the surrounding medium. With these assumptions, the Stefan equation can be integrated analytically over the whole length of the apparatus; a simple and convenient equation is obtained, which shows graphically the basic qualitative regularities of the process and permits making rough calculations with exceeding ease and simplicity without unwieldy and laborious graphical methods. (Author).

Download or read book Condensation of a Vapor in the Presence of an Non condensing Gas written by William W. Akers and published by . This book was released on 1959 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Condensing Heat Transfer in the Presence of Non condensing Gases written by Benigno Robert Loya and published by . This book was released on 1961 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Condensation of Vapor in the Presence of a Non Condensing Gas written by Votta Ferdinand, Jr and published by . This book was released on 1957 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Condensation of a Condensable Vapor in the Presence of a Non condensable Gas written by Myron Dmytryszyn and published by . This book was released on 1957 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vapor Condensation in the Presence of a Noncondensable Gas written by Lichung Pong and published by . This book was released on 1985 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Influence of the Presence of a Non condensable Gas on the Condensation of a Vapor to the Solid State written by John Roger Axe and published by . This book was released on 1972 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Condensation of a Condensable Vapor in the Presence of a Non condensable Gas in a Horizontal Condenser written by James O. Bright and published by . This book was released on 1960 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Condensation of Vapor in the Presence of Noncondensing Gas written by Ferdinand Votta and published by . This book was released on 1958 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Investigation of Condensing Heat Transfer in the Presence of Non condensing Gases written by James Leslie Clayton and published by . This book was released on 1961 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Heat and Mass Transfer During Vapor Condensation in the Presence of Noncondensing Gases written by L. D. Berman and published by . This book was released on 1970 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: The article gives a brief review of the investigations carried out, it shows the permissible areas of application of the relationships suggested by different authors for the heat- and mass-transfer coefficients and notes the errors contained in some of the works.

Download or read book Condensation of Vapors in the Presence of Non condensable Gases written by Robert Lionel Laurence and published by . This book was released on 1960 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook of Thermal Science and Engineering written by and published by Springer. This book was released on 2018-07-31 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Handbook provides researchers, faculty, design engineers in industrial R&D, and practicing engineers in the field concise treatments of advanced and more-recently established topics in thermal science and engineering, with an important emphasis on micro- and nanosystems, not covered in earlier references on applied thermal science, heat transfer or relevant aspects of mechanical/chemical engineering. Major sections address new developments in heat transfer, transport phenomena, single- and multiphase flows with energy transfer, thermal-bioengineering, thermal radiation, combined mode heat transfer, coupled heat and mass transfer, and energy systems. Energy transport at the macro-scale and micro/nano-scales is also included. The internationally recognized team of authors adopt a consistent and systematic approach and writing style, including ample cross reference among topics, offering readers a user-friendly knowledgebase greater than the sum of its parts, perfect for frequent consultation. The Handbook of Thermal Science and Engineering is ideal for academic and professional readers in the traditional and emerging areas of mechanical engineering, chemical engineering, aerospace engineering, bioengineering, electronics fabrication, energy, and manufacturing concerned with the influence thermal phenomena.

Download or read book Role of Mathematical Modeling in Advanced Power Generation Systems written by Arijit Ganguli and published by Frontiers Media SA. This book was released on 2023-11-13 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy demands throughout the globe has been increasing and the detrimental effects of carbon emissions on the environment by use of non-renewable resources has impacted life on the planet. The changing climate has caused an increase in natural calamities all over the globe. Many countries in the world have started to produce power using renewable resources like solar, biomass, wind energy, nuclear energy and green fuels. Though there are several technologies for power generation using the above sources, efficient design of these systems still needs lot of research. Mathematical modeling would play a vital role in design of state of the art technologies. Advanced nuclear power plants need special mention since they involve naturally driven safety systems where the complex phenomena of boiling, condensation and thermal stratification take place. These are difficult to model as there is more than one phase coupled with turbulence models, near wall phenomena, coalescence and break up, etc. Scaling up of such systems and their innovative design to reduce stratification requires the help of mathematical modeling. Other opportunities include Computational Fluid Dynamics (CFD) modeling for design of wind turbines for power generation using wind energy. Power generation from biomass involves use of gasifiers which has complex set of reactions and mostly two or three phases which are difficult to model using CFD at industrial scales.

Download or read book Handbook of Heat Transfer written by Warren M. Rohsenow and published by McGraw-Hill Companies. This book was released on 1973 with total page 1552 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Metal Vapor Condensation Under High Pressure mercury Vapor to 500 Psia Heat Transfer Coefficients written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Mercury vapor up to 500 psia was condensed outside a cylindrical tube in both horizontal and vertical positions. Results show consistently low heat transfer coefficients compared to Nusselt's theory. Two auxiliary mercury vapor condensers downstream of the boiler vent were used to control and safeguard the system. Constantan wires were spot welded on the surface inside the test condenser tube. The heat flux ranged from 20,000 to 45,000 Btu/h-ft2 and the temperature differences between vapor and condensing wall from 6 to 50°F. The condensation heat transfer coefficients, ranging from 850 to 3,500 Btu/h-°F-ft2, are only about 3 to 9 percent of those predicted by Nusselt's theory. Due to the positive pressure in the system for most test runs, the chance of any in-leakage of noncondensable gases into the boiler is extremely small. Since no substantial change of heat transfer rate resulted from wide variations in the heat load on the reflux condenser at some specific heat flux on the test condenser tube, the low heat transfer rate of mercury vapor condensation was not due to the presence of any non-condensable gas. The test data for high vapor pressure up to 500 psia reveal that the heat transfer coefficient is independent of the vapor pressure level. The condensation coefficients calculated based on kinetic theory are much smaller than unity and decreasewith vapor pressure. It is hypothesized that dimer content in the metal vapor phase might behave as non-condensable or semi-condensable gas and create a diffusional barrier at the vapor-liquid interface near the condensate film. This dimer vapor could be the main cause of interfacial resistance during metal vapor condensation process. 41 figures, 7 tables, 58 references. (DLC).

Download or read book Theory of Laminar Film Condensation written by Tetsu Fujii and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the petroleum crisis in the 1970s, a lot of effort to save energy was made in industry, and remarkable achievements have been made. In the research and development concerning thermal energy, however, it was clar ified that one of the most important problems was manufacturing con densing systems with smaller size and higher performance. To solve this problem we need a method which synthesizes selections_ of the type of con denser, cooling tube and its arrangement, assessment of fouling on the cooling surfaces, consideration of transient characteristics of a condenser, etc. The majority of effort, however, has been to devise a surface element which enhances the heat transfer coefficient in condensation of a single or multicomponent vapor. Condensation phenomena are complexly affected by a lot of physical property values, and accordingly the results of theo retical research are expressed with several dimensionless parameters. On the other hand, the experimental research is limited to those with some specified cooling surfaces and some specified working fluids. Hence, the basic research of condensation is necessary for criticizing the enhancement effect as well as for an academic interest.