Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
A New Mechanistic Model Of Critical Heat Flux In Forced Convection Subcooled Boiling
Download A New Mechanistic Model Of Critical Heat Flux In Forced Convection Subcooled Boiling full books in PDF, epub, and Kindle. Read online A New Mechanistic Model Of Critical Heat Flux In Forced Convection Subcooled Boiling ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis A New Mechanistic Model of Critical Heat Flux in Forced-convection Subcooled Boiling by :
Download or read book A New Mechanistic Model of Critical Heat Flux in Forced-convection Subcooled Boiling written by and published by . This book was released on 1997 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of its practical importance and various industrial applications, the process of subcooled flow boiling has attracted a lot of attention in the research community in the past. However, the existing models are primarily phenomenological and are based on correlating experimental data rather than on a first-principle analysis of the governing physical phenomena. Even though the mechanisms leading to critical heat flux (CHF) are very complex, the recent progress in the understanding of local phenomena of multiphase flow and heat transfer, combined with the development of mathematical models and advanced Computational Fluid Dynamics (CFD) methods, makes analytical predictions of CHF quite feasible. Various mechanisms leading to CHF in subcooled boiling have been investigated. A new model for the predictions of the onset of CHF has been developed. This new model has been coupled with the overall boiling channel model, numerically implemented in the CFX 4 computer code, tested and validated against the experimental data of Hino and Ueda. The predicted critical heat flux for various channel operating conditions shows good agreement with the measurements using the aforementioned closure laws for the various local phenomena governing nucleation and bubble departure from the wall. The observed differences are consistent with typical uncertainties associated with CHF data.
Book Synopsis Mechanistic Modeling of CHF in Forced-convection Subcooled Boiling by :
Download or read book Mechanistic Modeling of CHF in Forced-convection Subcooled Boiling written by and published by . This book was released on 1997 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of the complexity of phenomena governing boiling heat transfer, the approach to solve practical problems has traditionally been based on experimental correlations rather than mechanistic models. The recent progress in computational fluid dynamics (CFD), combined with improved experimental techniques in two-phase flow and heat transfer, makes the use of rigorous physically-based models a realistic alternative to the current simplistic phenomenological approach. The objective of this paper is to present a new CFD model for critical heat flux (CHF) in low quality (in particular, in subcooled boiling) forced-convection flows in heated channels.
Book Synopsis Development of a Mechanistic Model for Forced Convection Subcooled Boiling by : Dillon R. Shaver
Download or read book Development of a Mechanistic Model for Forced Convection Subcooled Boiling written by Dillon R. Shaver and published by . This book was released on 2014 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flow Regimes and Mechanistic Modeling of Critical Heat Flux Under Subcooled Flow Boiling Conditions by : Jean-Marie Le Corre
Download or read book Flow Regimes and Mechanistic Modeling of Critical Heat Flux Under Subcooled Flow Boiling Conditions written by Jean-Marie Le Corre and published by . This book was released on 2007 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermal performance of heat flux controlled boiling heat exchangers are usually limited by the Critical Heat Flux (CHF) above which the heat transfer degrades quickly, possibly leading to heater overheating and destruction.
Book Synopsis Computer Model of Forced-convection Subcooled Boiling with Non-uniform Axial and Circumferential Heat Flux Boundary Conditions by : Ying T. Lee
Download or read book Computer Model of Forced-convection Subcooled Boiling with Non-uniform Axial and Circumferential Heat Flux Boundary Conditions written by Ying T. Lee and published by . This book was released on 1995 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modelling Subcooled Boiling Flows by : Guan Heng Yeoh
Download or read book Modelling Subcooled Boiling Flows written by Guan Heng Yeoh and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the context of computational fluid dynamics (CFD), modelling low-pressure subcooled boiling flow is of particular significance. A review is provided in this book of the various numerical modelling approaches that have been adopted to handle subcooled boiling flow. The main focus in the analysis of such a challenging problem can be broadly classified according into two important categories: (i) Heat transfer and wall heat flux partitioning during subcooled boiling flow at the heated wall and (ii) Two-phase flow and bubble behaviours in the bulk subcooled flow away from the heated wall. For the first category, details of both empirical and mechanistic models that have been proposed in the literature are given. The enhancement in heat transfer during forced convective boiling attributed by the presence of both sliding and stationary bubbles, force balance model for bubble departure and bubble lift-off as well as the evaluation of bubble frequency based on fundamental theory depict the many improvements that have been introduced to the current mechanistic model of heat transfer and wall heat flux partitioning. For the second category, details of applications of various empirical relationships and mechanistic model such as population balance model to determine the local bubble diameter in the bulk subcooled liquid that have been employed in the literature are also given. A comparison of the predictions with experimental data is demonstrated. For the local case, the model considering population balance and improved wall heat partition shows good agreement with the experimentally measured radial distributions of the Sauter mean bubble diameter, void fraction, interfacial area concentration and liquid velocity profiles. Significant weakness prevails however over the vapor velocity distribution. For the axial case, good agreement is also achieved for the axial distributions of the Sauter mean bubble diameter, void fraction and interfacial area concentration profiles. The present model correctly represents the plateau at the initial boiling stages at upstream, typically found in low-pressure subcooled boiling flows, followed by the significant rise of the void fraction at downstream.
Book Synopsis Mathematical Model of Critical Heat Flux in Forced Convective Subcooled Boiling by : Yung-Ji Tarng
Download or read book Mathematical Model of Critical Heat Flux in Forced Convective Subcooled Boiling written by Yung-Ji Tarng and published by . This book was released on 1980 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heat Transfer in Boiling by : Erich Hahne
Download or read book Heat Transfer in Boiling written by Erich Hahne and published by . This book was released on 1977 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Combined Modeling and Experimental Validation of Boiling Curve and Critical Heat Flux by : Wen Wu
Download or read book Combined Modeling and Experimental Validation of Boiling Curve and Critical Heat Flux written by Wen Wu and published by . This book was released on 2007 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: A model is developed to give combined predictions of the subcooled nucleate boiling heat transfer curve and the critical heat flux. Each component of the heat flux due to various heat transfer mechanisms, including forced convection, transient conduction, and microlayer evaporation, is identified and quantified. The key effects of bubble coalescence are modeled from a statistical approach by deriving the probability density function of bubble interaction to develop the distribution of the bubble lift-off radius. It is found from this mechanistic approach that the critical heat flux reflects a limit of heat transfer capacity imposed by the interaction of bubbles.
Book Synopsis Convective Flow Boiling by : John C. Chen
Download or read book Convective Flow Boiling written by John C. Chen and published by CRC Press. This book was released on 2019-08-16 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises selected papers from the First International Conference on Convective Flow Boiling. The purpose of the conference is to examine state-of-science and recent developments in technology of flow boiling, i.e., boiling systems which are affected by convective flows.
Book Synopsis A Forced Convection Subcooled Boiling Computer Code for Non-uniform Axial Heat Fluxes by : Bruce R. Springsteen
Download or read book A Forced Convection Subcooled Boiling Computer Code for Non-uniform Axial Heat Fluxes written by Bruce R. Springsteen and published by . This book was released on 1992 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transport Phenomena in Capillary-Porous Structures and Heat Pipes by : Henry Smirnov
Download or read book Transport Phenomena in Capillary-Porous Structures and Heat Pipes written by Henry Smirnov and published by CRC Press. This book was released on 2009-07-29 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two-phase nano- and micro-thermal control device research is now proving relevant to a growing range of modern applications, including those in cryogenics, thermal engineering, MEMS, and aerospace engineering. Until now, researchers have lacked a definitive resource that provides a complete review of micro- and nano-scale evaporative heat and mass
Book Synopsis Relative Effects of Flow and Orientation on the Critical Heat Flux in Subcooled Forced Convection Boiling by : Matthew Joseph Brusstar
Download or read book Relative Effects of Flow and Orientation on the Critical Heat Flux in Subcooled Forced Convection Boiling written by Matthew Joseph Brusstar and published by . This book was released on 1995 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Theoretical Prediction of Critical Heat Flux in Forced Convection Boiling During Power Transients by :
Download or read book A Theoretical Prediction of Critical Heat Flux in Forced Convection Boiling During Power Transients written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper, a theoretical prediction of critical heat flux (CHF) during power transients in forced convective boiling is presented. The analysis is restricted to the departure from nucleate boiling (DNB) type of CHF at low qualities. The developed theory is compared with the experimental data available in the literature. The agreement is favorable. The results are discussed in terms of the various parameters affecting the transient CHF. This new model also is compared with the semi-empirical transient CHF model in the literature.
Download or read book Boiling written by Yasuo Koizumi and published by Elsevier. This book was released on 2017-06-22 with total page 849 pages. Available in PDF, EPUB and Kindle. Book excerpt: Boiling: Research and Advances presents the latest developments and improvements in the technologies, instrumentation, and equipment surrounding boiling. Presented by the Japan Society of Mechanical Engineers, the book takes a holistic approach, first providing principles, and then numerous practical applications that consider size scales. Through six chapters, the book covers contributed sections from knowledgeable specialists on various topics, ranging from outlining boiling phenomena and heat transfer characteristics, to the numerical simulation of liquid-gas two phase flow. It summarizes, in a single volume, the state-of-the-art in boiling heat transfer and provides a valuable resource for thermal engineers and practitioners working in the thermal sciences and thermal engineering. Explores the most recent advancements in boiling research and technology from the last twenty years Provides section content written by contributing experts in their respective research areas Shares research being conducted and advancements being made on boiling and heat transfer in Japan, one of the major research hubs in this field
Book Synopsis Hydrodynamic Aspects of Boiling Heat Transfer by : N. Zuber
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:
Book Synopsis Critical Heat Flux in Flow Boiling in Microchannels by : Sujoy Kumar Saha
Download or read book Critical Heat Flux in Flow Boiling in Microchannels written by Sujoy Kumar Saha and published by Springer. This book was released on 2015-06-04 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Brief concerns the important problem of critical heat flux in flow boiling in microchannels. A companion edition in the SpringerBrief Subseries on Thermal Engineering and Applied Science to “Heat Transfer and Pressure Drop in Flow Boiling in Microchannels,” by the same author team, this volume is idea for professionals, researchers, and graduate students concerned with electronic cooling.
