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Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (141 download)
Download or read book Investigation of flow orientation effect on chf and post-dryout heat-transfer written by and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hiralkumar Harshadbhai Patel
Publisher :
ISBN 13 :
Total Pages : 221 pages
Book Rating : 4.:/5 (11 download)
Download or read book Experimental Investigation of Liquid Contact in the Developing Post-dryout CHF Flow Boiling Regime Using Surface Mounted Thermistors written by Hiralkumar Harshadbhai Patel and published by . This book was released on 2019 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Understanding heat transfer in the post-critical heat flux (CHF) flow boiling regime is important for determining the performance of the heat transfer equipment for various industrial applications requiring high heat transfer rates, e.g., heat exchangers, boilers, chemical and nuclear reactors. Liquid can be present in the core of the flow channel in the form of entrained liquid droplets, especially immediately downstream of film dryout. These droplets are suspected to provide an important heat transfer mechanism as they impinge on the heated wall. The objective of the current study is to investigate liquid contact with the heated wall in this flow region immediately downstream of the film dryout location. As part of this study a thermal hydraulic test loop (Experimental Vertrel Loop) was designed and constructed to conduct flow boiling experiments using Vertrel XF as the heat transfer fluid. A test section, with a rectangular flow geometry to enable a simplified 2D flow field and optical access for flow visualization, was designed and fabricated to study CHF and developing post-dryout flow boiling. Heater surface mounted thermistors were developed to facilitate wall temperature measurement and liquid contact detection. CHF and liquid contact data was collected for twenty different test conditions with exit pressures ranging from 221 to 287KPa, inlet temperatures ranging from 318 to 339K and mass fluxes ranging from 1025 to 2050kg=m2s. A data set consisting of over 500 liquid contact fraction data points was generated for steady-state developing post-dryout flow boiling regime. A correlation has been developed based on the test data to predict the liquid contact fraction and enable heat transfer prediction of the transition from CHF to fully developed post-dryout flow. The proposed correlation predicts 97% of the liquid contact fraction test data with an average error of 9:7% and a root mean square error of 11:9%"--Abstract, page iii.
Author : G.F. Hewitt
Publisher : Routledge
ISBN 13 : 1351423320
Total Pages : 448 pages
Book Rating : 4.3/5 (514 download)
Download or read book Post-Dryout Heat Transfer written by G.F. Hewitt and published by Routledge. This book was released on 2017-10-06 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of post-dryout heat transfer has generated great interest because of its importance in determining maximum clad temperature in nuclear reactor loss-of-coolant accidents (LOCAs). An associated phenomenon, the deterioration of heat transfer in boiling, is significant to other industrial sectors. This book provides comprehensive coverage of post-dryout heat transfer, discussing such essential topics as post-dryout heat transfer in dispersed flow, interpretation and use of transient data in surface rewetting by reinstatement of flow or by reducing heat flux, rod bundles, two-phase flow occurrences in the post-dryout region, various methods for predicting ""inverted annular flow,"" and new experiments for measuring thermodynamic nonequilibrium with probes in the channel. The book also presents a basis for independent safety assessment of nuclear reactors and chemical plant systems where post-dryout heat transfer may occur. Post-Dryout Heat Transfer will be a useful reference for researchers and professionals in the nuclear and chemical production industries.
Author : Ji Zhang
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (872 download)
Download or read book Geometry Effect on Post-dryout Heat Transfer written by Ji Zhang and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : G.F. Hewitt
Publisher : Routledge
ISBN 13 : 1351423312
Total Pages : 446 pages
Book Rating : 4.3/5 (514 download)
Download or read book Post-Dryout Heat Transfer written by G.F. Hewitt and published by Routledge. This book was released on 2017-10-06 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of post-dryout heat transfer has generated great interest because of its importance in determining maximum clad temperature in nuclear reactor loss-of-coolant accidents (LOCAs). An associated phenomenon, the deterioration of heat transfer in boiling, is significant to other industrial sectors. This book provides comprehensive coverage of post-dryout heat transfer, discussing such essential topics as post-dryout heat transfer in dispersed flow, interpretation and use of transient data in surface rewetting by reinstatement of flow or by reducing heat flux, rod bundles, two-phase flow occurrences in the post-dryout region, various methods for predicting ""inverted annular flow,"" and new experiments for measuring thermodynamic nonequilibrium with probes in the channel. The book also presents a basis for independent safety assessment of nuclear reactors and chemical plant systems where post-dryout heat transfer may occur. Post-Dryout Heat Transfer will be a useful reference for researchers and professionals in the nuclear and chemical production industries.
Author : A. Leung
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (141 download)
Download or read book Investigation of the effects of heater characteristics on chf and post-chf performance of a long vertical annulus in high pressure water written by A. Leung and published by . This book was released on 1981 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chf and post-chf tests were performed in water at 9.7 mpa using two vertical test assemblies having identical, internally heated annular flow channels, one heated directly, the other indirectly. experiments were conducted to determine the effect of the characteristics of these methods of heating on chf and post-chf heat transfer. for the range of the test conditions investigated, the results show that the direct and indirect heaters have similar chf performance. at heat fluxes above chf and mass fluxes of 2.0 and 3.5 mg.s sup(-1).m sup(-2), the indicated maximum wall temperatures of the heaters were similar, but at the highest mass flux of the tests, 5.0 mg.s sup(-1).m sup(-2), the indrrect heater had lower indicated maximum wall temperatures than the direct heater for a given heat flux above chf. a chf prediction method for vertical annuli based on a two-phase annular flow theory is presented. this model, which considers droplet entrainment, deposition and evaporation in the annular flow regime, assumes dryout to occur when the liquid film flow on the inner rod approaches zero. the chf predictions were in good agreement with the experimental results. in general, the model under-predicted chf at low inlet subcoolings and over-predicted chf at high inlet subcoolings. the error trend is consistent with that of the chf prediction models of other researchers.
Author : VDI Gesellschaft
Publisher : Springer Science & Business Media
ISBN 13 : 3540778764
Total Pages : 1608 pages
Book Rating : 4.5/5 (47 download)
Download or read book VDI Heat Atlas written by VDI Gesellschaft and published by Springer Science & Business Media. This book was released on 2010-07-21 with total page 1608 pages. Available in PDF, EPUB and Kindle. Book excerpt: For more than 50 years, the Springer VDI Heat Atlas has been an indispensable working means for engineers dealing with questions of heat transfer. Featuring 50% more content, this new edition covers most fields of heat transfer in industrial and engineering applications. It presents the interrelationships between basic scientific methods, experimental techniques, model-based analysis and their transfer to technical applications.
Author : N. Zuber
Publisher :
ISBN 13 :
Total Pages : 216 pages
Book Rating : 4.3/5 (91 download)
Download or read book Hydrodynamic Aspects of Boiling Heat Transfer written by N. Zuber and published by . This book was released on 1959 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Publisher :
ISBN 13 : 9789175019093
Total Pages : 53 pages
Book Rating : 4.0/5 (19 download)
Download or read book Experimental and Theoretical Study of Post-dryout Heat Transfer in Annuli with Flow Obstacle written by and published by . This book was released on 2013 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Frank Kreith
Publisher : Springer Science & Business Media
ISBN 13 : 3662301822
Total Pages : 400 pages
Book Rating : 4.6/5 (623 download)
Download or read book Direct-Contact Heat Transfer written by Frank Kreith and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: to increase the use of direct contact processes, the National Science Foundation sup ported a workshop on direct contact heat transfer at the Solar Energy Research Insti tute in the summer of 1985. We served as organizers for this workshop, which em phasized an area of thermal engineering that, in our opinion, has great promise for the future, but has not yet reached the point of wide-spread commercial application. Hence, a summary of the state of knowledge at this point is timely. The workshop had a dual objective: 1. To summarize the current state of knowledge in such a form that industrial practi tioners can make use of the available information. 2. To indicate the research and development needed to advance the state-of-the-art, indicating not only what kind of research is needed, but also the industrial poten tial that could be realized if the information to be obtained through the proposed research activities were available.
Author : Ionut Gheorghe P. Anghel
Publisher :
ISBN 13 : 9789175010205
Total Pages : 39 pages
Book Rating : 4.0/5 (12 download)
Download or read book Experimental Study of Post-dryout Heat Transfer in Annuli with Flow Obstacles written by Ionut Gheorghe P. Anghel and published by . This book was released on 2011 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 53 pages
Book Rating : 4.:/5 (941 download)
Download or read book Experimental and theoretical study of post-dryout heat transfer in annuli with flow obstacles written by and published by . This book was released on 2013 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 358 pages
Book Rating : 4.0/5 ( download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1992-03 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 916 pages
Book Rating : 4.3/5 (243 download)
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1982 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : James Michael Kidd
Publisher :
ISBN 13 :
Total Pages : 254 pages
Book Rating : 4.:/5 (23 download)
Download or read book Effect of Flow Orientation on the Heat Transfer from Fin Arrays written by James Michael Kidd and published by . This book was released on 1975 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 1346 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1985 with total page 1346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Van P. Carey
Publisher : CRC Press
ISBN 13 : 1498716636
Total Pages : 731 pages
Book Rating : 4.4/5 (987 download)
Download or read book Liquid-Vapor Phase-Change Phenomena written by Van P. Carey and published by CRC Press. This book was released on 2020-02-28 with total page 731 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the second edition of Liquid-Vapor Phase-Change Phenomena was written, research has substantially enhanced the understanding of the effects of nanostructured surfaces, effects of microchannel and nanochannel geometries, and effects of extreme wetting on liquid-vapor phase-change processes. To cover advances in these areas, the new third edition includes significant new coverage of microchannels and nanostructures, and numerous other updates. More worked examples and numerous new problems have been added, and a complete solution manual and electronic figures for classroom projection will be available for qualified adopting professors.
