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The Influence Of Convective Heat Transfer On Flow Stability In Rotating Disk Chemical Vapor Deposition Reactors
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Book Synopsis The Influence of Convective Heat Transfer on Flow Stability in Rotating Disk Chemical Vapor Deposition Reactors by : William S. Winters
Download or read book The Influence of Convective Heat Transfer on Flow Stability in Rotating Disk Chemical Vapor Deposition Reactors written by William S. Winters and published by . This book was released on 1997 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Influence of Convective Heat Transfer on Flow Stability in Rotating Disk Chemical Vapor Deposition Reactors by :
Download or read book The Influence of Convective Heat Transfer on Flow Stability in Rotating Disk Chemical Vapor Deposition Reactors written by and published by . This book was released on 1997 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flow and heat transfer of NH3 and He were studied in a rotating disk system with applications to chemical vapor deposition reactors. Flow field and disk heat flux were obtained over a range of operating conditions. Comparisons of disk convective heat transfer were made to infinite rotating disk results to appraise uniformity of transport to the disk. Important operating variables include disk spin rate, disk and enclosure temperatures, flow rate, composition, pressure, and gas mixture temperature at the reactor inlet. These variables were studied over ranges of the spin Reynolds number, Re[omega]; disk mixed convection parameter, MCP{sub w}; and wall mixed convection parameter, MCP{sub w}. Results obtained for NH3 show that increasing Re[omega] from 314.5 to 3145 increases the uniformity of rotating disk heat flux and results in thinner thermal boundary layers at the disk surface. At Re[omega]=314.5, increasing MCP{sub d} to 15 leads to significant departure from the infinite disk result with nonuniform disk heat fluxes and recirculating flow patterns; flow becomes increasingly complex at larger values of MCP{sub d}. At Re[omega] of 3145, results are closer to the infinite disk for MCP{sub d} up to 15. For large negative (hot walls) and positive (cold walls) values of MCP{sub w}, flow recirculates and there is significant deviation from the infinite disk result; nonuniformities occur at both values of Re[omega]. The influence of MCP{sub w} on flow stability is increased at larger MCP{sub d} and lower Re[omega]. To determine the influence of viscosity and thermal conductivity variation with temperature, calculations were made with He and NH3; He transport property variation is low relative to NH3. Results show that the flow of NH3 is less stable than that of He as MCP{sub d} is increased for MCP{sub w}=0 and Re[omega]=314.5. 16 refs., 15 figs., 1 tab.
Book Synopsis Convective Heat Transfer and Flow Stability in Rotating Disk CVD Reactors by :
Download or read book Convective Heat Transfer and Flow Stability in Rotating Disk CVD Reactors written by and published by . This book was released on 1998 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The flow and heat transfer of NH3 and He have been studied in a rotating disk system with applications to chemical vapor deposition reactors. Influence of the important operating parameters were studied numerically over ranges of the primary dimensionless variables: (1) the spin Reynolds number, Re{sub {omega}}, (2) the disk mixed convection parameter, MCP{sub d}, and (3) a new parameter, the wall mixed convection parameter, MCP{sub w}. Inlet velocities were set to the corresponding infinite rotating disk asymptotic velocity. Results were obtained primarily for NH3. Results show that increasing Re{sub {omega}} from 314.5 to 3,145 increases the uniformity of the rotating disk heat flux and results in thinner thermal boundary layers at the disk surface. At Re{sub {omega}} = 314.5, increasing MCP{sub d} to 15 leads to significant departure from the infinite disk result with nonuniform disk heat fluxes and recirculating flow patterns. At Re{sub {omega}} = 3,145, the results are closer to the infinite disk for MCP{sub d} up to 15. For large values of MCP{sub w}, the flow recirculates and there is significant deviation from the infinite disk result. The influence of MCP{sub w} on flow stability is increased at larger MCP{sub d} and lower Re{sub {omega}}. The results show that because of variable transport properties, the flow of NH3 is less stable than that of He as MCP{sub d} is increased for MCP{sub w} = 0 and Re{sub {omega}} = 314.5.
Download or read book Applied mechanics reviews written by and published by . This book was released on 1948 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heat Transfer 1990: General papers by : Gad Hetsroni
Download or read book Heat Transfer 1990: General papers written by Gad Hetsroni and published by . This book was released on 1990 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies of Heat Transfer and Flow in the Modified Chemical Vapor Deposition Including Effects of Chemistry by : Sooyun Joh
Download or read book Studies of Heat Transfer and Flow in the Modified Chemical Vapor Deposition Including Effects of Chemistry written by Sooyun Joh and published by . This book was released on 1993 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Post-Dryout Heat Transfer by : G. F. Hewitt
Download or read book Post-Dryout Heat Transfer written by G. F. Hewitt and published by CRC Press. This book was released on 1992-06-04 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.
Book Synopsis Heat Transfer 1990 by : Gad Hetsroni
Download or read book Heat Transfer 1990 written by Gad Hetsroni and published by . This book was released on 1990 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the 2003 ASME Summer Heat Transfer Conference by :
Download or read book Proceedings of the 2003 ASME Summer Heat Transfer Conference written by and published by . This book was released on 2003 with total page 1010 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Study of Flow and Heat Transfer in a Rotating Chemical Vapor Deposition Reactor by : Sun Wong
Download or read book Experimental Study of Flow and Heat Transfer in a Rotating Chemical Vapor Deposition Reactor written by Sun Wong and published by . This book was released on 2015 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental model was set up to study the rotating vertical impinging chemical vapor deposition reactor. Deposition occurs only when the system has enough thermal energy. Therefore, understanding the fluid characteristic and heat transfer of the system will provide a good basis to understand the full model. Growth rate and the uniformity of the film are the two most important factors in CVD process and it is depended on the flow and thermal characteristic within the system. Optimizing the operating parameters will result in better growth rate and uniformity. Operating parameters such as inflow velocity, inflow diameter and rotational speed are used to create different design simulations. Fluid velocities and various temperatures are recorded to see the effects of the different operating parameters. Velocities are recorded by using flow meter and hot wire anemometer. Temperatures are recorded by using various thermocouples and infrared thermometer. The result should provide a quantitative basis for the prediction, design and optimization of the system and process for design and fabrication of future CVD reactors. Further assessment of the system results will be discuss in detail such as effects of buoyancy and effects of rotation. The experimental study also coupled with a numerical study for further validation of both model. Comparisons between the two models are also presented.
Book Synopsis Principles of Chemical Vapor Deposition by : D.M. Dobkin
Download or read book Principles of Chemical Vapor Deposition written by D.M. Dobkin and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles of Chemical Vapor Deposition provides a simple introduction to heat and mass transfer, surface and gas phase chemistry, and plasma discharge characteristics. In addition, the book includes discussions of practical films and reactors to help in the development of better processes and equipment. This book will assist workers new to chemical vapor deposition (CVD) to understand CVD reactors and processes and to comprehend and exploit the literature in the field. The book reviews several disparate fields with which many researchers may have only a passing acquaintance, such as heat and mass transfer, discharge physics, and surface chemistry, focusing on key issues relevant to CVD. The book also examines examples of realistic industrial reactors and processes with simplified analysis to demonstrate how to apply the principles to practical situations. The book does not attempt to exhaustively survey the literature or to intimidate the reader with irrelevant mathematical apparatus. This book is as simple as possible while still retaining the essential physics and chemistry. The book is generously illustrated to assist the reader in forming the mental images which are the basis of understanding.
Book Synopsis Flow and Heat Transfer in External Chemical Vapor Deposition Including the Effects of Chemistry by : Cheng-Kuan Wu
Download or read book Flow and Heat Transfer in External Chemical Vapor Deposition Including the Effects of Chemistry written by Cheng-Kuan Wu and published by . This book was released on 1997 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies of Flow, Heat Transfer and Particle Deposition During Chemical Vapor Deposition by : Yur-Tsai Lin
Download or read book Studies of Flow, Heat Transfer and Particle Deposition During Chemical Vapor Deposition written by Yur-Tsai Lin and published by . This book was released on 1991 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thirteenth European Conference on Chemical Vapour Deposition by : Dimitris Davazoglou
Download or read book Thirteenth European Conference on Chemical Vapour Deposition written by Dimitris Davazoglou and published by . This book was released on 2001 with total page 1240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Heat Transfer written by and published by . This book was released on 1987 with total page 1096 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publishes research on energy transfer in equipment and applied thermodynamic processes in all fields of mechanical engineering and related industries. Topic areas include aerospace heat transfer; environmental heat transfer; gas turbine heat transfer; heat and mass transfer in biotechnology; heat transfer in electronic equipment; heat transfer in energy systems; heat transfer in fire and combustion systems; and heat transfer in manufacturing and materials processing.
Download or read book Journal de physique written by and published by . This book was released on 2001 with total page 1246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
