Download or read book Condensation of Steam on the Underside of a Horizontal Surface in the Presence of Air and Helium written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments and data analysis for the condensation of steam on the underside of a horizontal surface in a closed vessel are described. Previously reported results for film condensation with air as a noncondensable gas are reviewed and compared with new data with helium as the noncondensable in the same apparatus. Observations, including photographs of the condensate configurations, related to the occurrence of dropwise condensation are also discussed. It is noted that data reproducibility over long periods of time were possible only with film condensation and that with dropwise condensation condensing surface temperatures exhibited large nonuniformities and random fluctuations with time. The well known mass transfer calculational model for accounting for the presence of noncondensable gases had been shown previously to be successful with air. The same model when applied to the helium data was not successful except for small gas contents. It appears that the suppression of convection that would be expected to occur with the less dense gas is counteracted by convection induced by fog or mist formation. 14 refs.
Download or read book Condensation of Steam on the Underside of a Horizontal Surface in the Presence of Air and Helium written by and published by . This book was released on 1989 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1989 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Paper written by and published by . This book was released on 1987 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Condensation in the Presence of Noncondensable Gas written by Arthur P. Pernsteiner and published by . This book was released on 1993 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Fluid Dynamics written by Richard W. Johnson and published by CRC Press. This book was released on 2016-04-06 with total page 1544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Fluid Dynamics offers balanced coverage of the three traditional areas of fluid dynamics—theoretical, computational, and experimental—complete with valuable appendices presenting the mathematics of fluid dynamics, tables of dimensionless numbers, and tables of the properties of gases and vapors. Each chapter introduces a different fluid dynamics topic, discusses the pertinent issues, outlines proven techniques for addressing those issues, and supplies useful references for further research. Covering all major aspects of classical and modern fluid dynamics, this fully updated Second Edition: Reflects the latest fluid dynamics research and engineering applications Includes new sections on emerging fields, most notably micro- and nanofluidics Surveys the range of numerical and computational methods used in fluid dynamics analysis and design Expands the scope of a number of contemporary topics by incorporating new experimental methods, more numerical approaches, and additional areas for the application of fluid dynamics Handbook of Fluid Dynamics, Second Edition provides an indispensable resource for professionals entering the field of fluid dynamics. The book also enables experts specialized in areas outside fluid dynamics to become familiar with the field.
Download or read book Winter Annual Meeting written by American Society of Mechanical Engineers and published by . This book was released on with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Atomindex written by and published by . This book was released on 1988 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Condensation of the Underside of a Horizontal Surface in a Closed Vessel written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat transfer measurements were made for film condensation of steam on the underside of a horizontal surface in a closed vessel. Data were obtained as condensing heat flux vs. temperature difference at constant pressures and noncondensable gas (air) contents. Heat fluxes varied from about 0.04 to 0.8 MW/m2 (13,000 to 250,000 Btu/h-ft2) and temperature differences from about 30 to 150°C. Pressures ranged from 0.31 MPa (45 psia) to 1.24 MPa (180 psia). Gas contents ranged from the maximum the system could contain at atmospheric pressure to negligible amounts. It appears that the effect of noncondensable gas can be correlated reasonably well based on a heat-mass transfer analogy. However, the data for negligible gas contents exhibit a significant effect of the system pressure which cannot be accounted for by existing correlations or models such as the one due to Gerstmann and Griffith.
Download or read book Government Reports Annual Index written by and published by . This book was released on 1988 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Download or read book Condensation of Steam in the Presence of Air on Vertical Inclined and Horizontal Surfaces written by Mehrdad Ahmadinejad and published by . This book was released on 2001 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index Keyword A L written by and published by . This book was released on 1988 with total page 1600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanical Engineering written by and published by . This book was released on 1987 with total page 1452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Condensation in the Presence of Noncondensable Gas written by Ilpo K. Huhtiniemi and published by . This book was released on 1991 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1989 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cities and Their Vital Systems written by Advisory Committee on Technology and Society and published by National Academies Press. This book was released on 1989 with total page 1298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cities and Their Vital Systems asks basic questions about the longevity, utility, and nature of urban infrastructures; analyzes how they grow, interact, and change; and asks how, when, and at what cost they should be replaced. Among the topics discussed are problems arising from increasing air travel and airport congestion; the adequacy of water supplies and waste treatment; the impact of new technologies on construction; urban real estate values; and the field of "telematics," the combination of computers and telecommunications that makes money machines and national newspapers possible.
Download or read book Condensation of Steam in the Presence of Air in Vertical Tubes written by Lewis Livingston and published by . This book was released on 1974 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
