Effect of gravity on convective condensation at low mass velocity

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ISBN 13 :
Total Pages : 199 pages
Book Rating : 4.:/5 (17 download)

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Book Synopsis Effect of gravity on convective condensation at low mass velocity by : Lan Phuong Le Nguyen

Download or read book Effect of gravity on convective condensation at low mass velocity written by Lan Phuong Le Nguyen and published by . This book was released on 2017 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les écoulements diphasiques sont couramment utilisés dans de nombreux domaines dont, en particulier, le domaine spatial. La performance de ces systèmes est entièrement régie par les couplages se produisant entre les écoulements et les transferts de chaleur. Cette particularité a conduit, depuis les dernières décennies, au développement de nombreuses études sur les écoulements diphasiques en microgravité. Afin d'accroître la connaissance sur le comportement thermo-hydraulique de ces systèmes thermiques, la présente étude se focalise sur l'étude de la condensation dans un mini-tube en présence ou non de la force gravitationnelle. Pour étudier l'effet de la gravité sur cette configuration, un premier modèle instationnaire d'écoulement diphasique a été développé. Parallèlement, une analyse des effets de la gravité sur l'hydrodynamique et les transferts thermique a été menée dans deux sections d'essai possédant un diamètre interne commun de 3,4 mm et des vitesses massiques faibles à modérées. La première étude a été réalisée au cours de la 62e campagne de vols paraboliques de l'ESA. Elle a été dédiée à la détermination des coefficients de transfert de chaleur quasi-locaux se produisant à l'intérieur d'un tube de cuivre. Afin de visualiser également les régimes d'écoulement présents, un tube en verre a été inséré au sein de cet échangeur. L'effet de la gravité sur les écoulements et les transferts a ainsi été déterminé. La seconde expérience, menée au sol, a porté sur l'étude d'un écoulement de vapeur descendant au sein d'un tube en saphir placé verticalement. Un protocole de mesure permettant d'obtenir simultanément l'épaisseur du film de liquide ruisselant et le coefficient d'échange local associé a été développé.

Multi-phase Transport

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ISBN 13 :
Total Pages : 646 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Multi-phase Transport by : T. Nejat Veziroğlu

Download or read book Multi-phase Transport written by T. Nejat Veziroğlu and published by . This book was released on 1980 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Fundamentals of Low Gravity Fluid Dynamics and Heat Transfer

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Publisher : CRC Press
ISBN 13 : 1351089080
Total Pages : 351 pages
Book Rating : 4.3/5 (51 download)

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Book Synopsis Fundamentals of Low Gravity Fluid Dynamics and Heat Transfer by : Basil N. Antar

Download or read book Fundamentals of Low Gravity Fluid Dynamics and Heat Transfer written by Basil N. Antar and published by CRC Press. This book was released on 2019-07-23 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the fundamentals of low gravity fluid dynamics and heat transfer. It investigates fluid behavior in low gravity environments such as those found in earth orbiting and space vehicles. The two major fluid phenomena affected by gravity (buoyancy and surface tension) are treated thoroughly from both the theoretical and applications points of view, and limitations of fluid and thermal responses to gravitational fields in space-based settings are clearly delineated. Summaries of all data available from low gravity flight and terrestrial experiments performed to date are also presented.

Flow boiling and condensation in microscale channels

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Publisher : Springer Nature
ISBN 13 : 303068704X
Total Pages : 290 pages
Book Rating : 4.0/5 (36 download)

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Book Synopsis Flow boiling and condensation in microscale channels by : Fabio Toshio Kanizawa

Download or read book Flow boiling and condensation in microscale channels written by Fabio Toshio Kanizawa and published by Springer Nature. This book was released on 2021-04-30 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers aspects of multiphase flow and heat transfer during phase change processes, focusing on boiling and condensation in microscale channels. The authors present up-to-date predictive methods for flow pattern, void fraction, pressure drop, heat transfer coefficient and critical heat flux, pointing out the range of operational conditions that each method is valid. The first four chapters are dedicated on the motivation to study multiphase flow and heat transfer during phase change process, and the three last chapters are focused on the analysis of heat transfer process during boiling and condensation. During the description of the models and predictive methods, the trends are discussed and compared with experimental findings.

Physics of Fluids in Microgravity

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Publisher : CRC Press
ISBN 13 : 9780415275811
Total Pages : 630 pages
Book Rating : 4.2/5 (758 download)

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Book Synopsis Physics of Fluids in Microgravity by : Rodolfo Monti

Download or read book Physics of Fluids in Microgravity written by Rodolfo Monti and published by CRC Press. This book was released on 2002-01-10 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a microgravity experiment, the conditions prevalent in fluid phases can be substantially different from those on the ground and can be exploited to improve different processes. Fluid physics research in microgravity is important for the advancement of all microgravity scients: life, material, and engineering. Space flight provides a unique laboratory that allows scientists to improve their understanding of the behaviour of fluids in low gravity, allowing the investigation of phenomena and processes normally masked by the effects of gravity and thus difficult to study on Earth. Physics of Fluids in Microgravity provides a clear view of recent research and progress in the different fields of fluid research in space. The topics presented include bubles and drops dynamics, Maragoni flows, diffustion and thermodiffusion, solidfication,a nd crystal growth. The results obtained so far are, in some cases, to be confirmed by extensive research activities on the International Space station, where basic and applied microgravity experimentation will take place in the years to come.

Theory of Heat and Mass Transfer in Batch Condensation of Solids

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ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Theory of Heat and Mass Transfer in Batch Condensation of Solids by : W. I. Thompson

Download or read book Theory of Heat and Mass Transfer in Batch Condensation of Solids written by W. I. Thompson and published by . This book was released on 1946 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Physics and Parameterization of Moist Atmospheric Convection

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Publisher : Springer Science & Business Media
ISBN 13 : 9401588287
Total Pages : 499 pages
Book Rating : 4.4/5 (15 download)

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Book Synopsis The Physics and Parameterization of Moist Atmospheric Convection by : R.K. Smith

Download or read book The Physics and Parameterization of Moist Atmospheric Convection written by R.K. Smith and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: An up-to-date summary of our understanding of the dynamics and thermodynamics of moist atmospheric convection, with a strong focus on recent developments in the field. The book also reviews ways in which moist convection may be parameterised in large-scale numerical models - a field in which there is still some controversy - and discusses the implications of convection for large-scale flow. Audience: The book is aimed at the graduate level and research meteorologists as well as scientists in other disciplines who need to know more about moist convection and its representation in numerical models.

Heating and Cooling with Ground-Source Heat Pumps in Cold and Moderate Climates

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Publisher : CRC Press
ISBN 13 : 1000564266
Total Pages : 397 pages
Book Rating : 4.0/5 (5 download)

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Book Synopsis Heating and Cooling with Ground-Source Heat Pumps in Cold and Moderate Climates by : Vasile Minea

Download or read book Heating and Cooling with Ground-Source Heat Pumps in Cold and Moderate Climates written by Vasile Minea and published by CRC Press. This book was released on 2022-04-19 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heating and Cooling with Ground-Source Heat Pumps in Cold and Moderate Climates: Fundamentals and Basic Concepts covers fundamentals and design principles of vertical and horizontal indirect and direct expansion closed-loop, as well as ground and surface-water ground-source heat pump systems. It explains the thermodynamic aspects of mechanical and thermochemical compression cycles of geothermal heat pumps, and describes the energetic, economic, and environmental aspects associated with the use of ground-source heat pump systems for heating and cooling residential and commercial/institutional buildings in moderate and cold climates. Based on the author's more than 30 years of technical experience Focuses on ground-source heat pump technologies that can be successfully applied in moderate and cold climates Discusses technical aspects as well as the most common and uncommon application fields of basic system configurations This work is aimed at designers of HVAC systems, as well as geological, mechanical, and chemical engineers implementing environmentally-friendly heating and cooling technologies for buildings.

Heating and Cooling with Ground-Source Heat Pumps in Moderate and Cold Climates, Two-Volume Set

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Publisher : CRC Press
ISBN 13 : 1000564584
Total Pages : 841 pages
Book Rating : 4.0/5 (5 download)

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Book Synopsis Heating and Cooling with Ground-Source Heat Pumps in Moderate and Cold Climates, Two-Volume Set by : Vasile Minea

Download or read book Heating and Cooling with Ground-Source Heat Pumps in Moderate and Cold Climates, Two-Volume Set written by Vasile Minea and published by CRC Press. This book was released on 2022-07-30 with total page 841 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heating and Cooling with Ground-Source Heat Pumps in Moderate and Cold Climates, Two-Volume Set focuses on the use of very low-temperature geothermal energy for heating and cooling residential, institutional, and industrial buildings, and aims to increase the design community’s awareness and knowledge of the benefits, design, and installation requirements of commercial/institutional building ground-source heat pumps (GSHP). This set helps readers assess applicability, select a GSHP system type, and estimate building thermal load to ensure proper size for ground-source subsystems, appropriate brine and groundwater flow rates, and apt design of building closed-loops with distributed or central geothermal heat pumps. The first volume addresses fundamentals and design principles of vertical and horizontal indirect and direct expansion closed-loop, as well as ground- and surface-water ground-source heat pump systems. It explains the thermodynamic aspects of mechanical and thermochemical compression cycles of geothermal heat pumps, as well as the energetic, economic, and environmental aspects associated with the use of ground-source heat pump systems for heating and cooling residential and commercial/institutional buildings in moderate and cold climates. The second volume focuses on applications and cases studies of ground-source heat pumps in moderate and cold climates. It details technical aspects, as well as the most common and uncommon application fields of basic system configurations. The principles of system integrations and applications in moderate and cold climates are also presented, each followed by case studies. This comprehensive work is aimed at designers of HVAC systems, as well as geological, mechanical, and chemical engineers implementing environmentally-friendly heating and cooling technologies for buildings.

Convective Flow Boiling

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Publisher : CRC Press
ISBN 13 : 1000716031
Total Pages : 402 pages
Book Rating : 4.0/5 (7 download)

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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.

Laminar Flow Forced Convection in Ducts

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Publisher : Academic Press
ISBN 13 : 1483191303
Total Pages : 492 pages
Book Rating : 4.4/5 (831 download)

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Book Synopsis Laminar Flow Forced Convection in Ducts by : R. K. Shah

Download or read book Laminar Flow Forced Convection in Ducts written by R. K. Shah and published by Academic Press. This book was released on 2014-06-28 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laminar Flow Forced Convection in Ducts is a sourcebook for compact heat exchanger analytical data. This book describes the analytical solutions for laminar fluid flow and forced convection heat transfer in circular and noncircular pipes, including applicable differential equations and boundary conditions involving velocity and temperature problems of fluid flow. The book also discusses fluid flow—how much power is required to pump fluids through the heat exchanger, as well as the heat transfer—the determination of q" distribution, and the temperature of fluid and walls. The text also analyzes the coolant or heat transfer fluid flows in a nuclear power reactor composed of a bundle of circular section fuel rods located inside a round tube. R.A. Axford addresses fluid flow and heat transfers results for the rod bundle geometry in "Heat Transfer in Rod Bundles." The book also provides an overview and guidelines that can be used for the designer and the applied mathematician. This book is suitable for engineers working in electronics, aerospace, instrumentation, and biomechanics that use cooling or heating exchanges or solar collection systems.

VDI Heat Atlas

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Publisher : Springer Science & Business Media
ISBN 13 : 3540778764
Total Pages : 1608 pages
Book Rating : 4.5/5 (47 download)

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Book Synopsis VDI Heat Atlas by : VDI Gesellschaft

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.

Handbook of Phase Change

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Publisher : Routledge
ISBN 13 : 1351442198
Total Pages : 786 pages
Book Rating : 4.3/5 (514 download)

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Book Synopsis Handbook of Phase Change by : S.G. Kandlikar

Download or read book Handbook of Phase Change written by S.G. Kandlikar and published by Routledge. This book was released on 2019-01-22 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a comprehensive coverage of the basic phenomena. It contains twenty-five chapters which cover different aspects of boiling and condensation. First the specific topic or phenomenon is described, followed by a brief survey of previous work, a phenomenological model based on current understanding, and finally a set of recommended design equa

Stellar Astrophysics

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Publisher : Springer Science & Business Media
ISBN 13 : 9401008787
Total Pages : 521 pages
Book Rating : 4.4/5 (1 download)

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Book Synopsis Stellar Astrophysics by : K.S. Cheng

Download or read book Stellar Astrophysics written by K.S. Cheng and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Pacific Rim Conference originally started with one research concentration only - binary star research. The first Conference was held in Beijing, China, 1985, the second one in Seoul and Taejon, South Korea, 1990 and the third one in Chiang Mai, Thailand, 1995. In recent years, the conference series evolved into a much broader area of stellar astrophysics. The first such conference was held in Hong Kong in 1997. Kwong-Sang Cheng, a. k. a. one of the three Musketeers, documented the "accidental" development in writing in the Proceedings of the 1997 Pacific Rim Conference on Stellar Astrophysics (Volume 138 of the ASP Conference Series)! The meeting at Hong Kong University of Science and Technology covered three major topics: binary stars, compact stars and solar type stars. The conference was extremely successful. There was a general feeling among the participants that the conference on stellar astrophysics provided a good means to share ideas between such closely related disciplines. Unfortunately after the very successful meeting at HKST, Kwing L. Chan (another Musketeer) thought that he had already served and would not like to chair for another LOC for at least five years! After a few drinks at one of the watering holes in Wan Chai district of Hong Kong, Kwong-Sang Cheng was in very hiRh spirit and volunteered to taking on the responsibility of hosting the 51 Pacific Rim Conference at Hong Kong University in 1999.

Theory of Laminar Film Condensation

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Publisher : Springer Science & Business Media
ISBN 13 : 1461231523
Total Pages : 225 pages
Book Rating : 4.4/5 (612 download)

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Book Synopsis Theory of Laminar Film Condensation by : Tetsu Fujii

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.

Theory of Heat Pipes

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ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Theory of Heat Pipes by : T. P. Cotter

Download or read book Theory of Heat Pipes written by T. P. Cotter and published by . This book was released on 1965 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: A heat pipe is a self-contained structure which achieves very high thermal conductance by means of two-phase fluid flow with capillary circulation. A quantitative engineering theory for the design and performance analysis of heat pipes is given.

Heat Transfer in Condensation and Boiling

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Publisher : Springer Science & Business Media
ISBN 13 : 3642524575
Total Pages : 342 pages
Book Rating : 4.6/5 (425 download)

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Book Synopsis Heat Transfer in Condensation and Boiling by : Karl Stephan

Download or read book Heat Transfer in Condensation and Boiling written by Karl Stephan and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: I welcome the opportunity to have my book translated, because of the great emphasis on two-phase flow and heat transfer in the English-speaking world, as related to research, university education, and industrial practice. The 1988 Springer-Verlag edition of "Warmeiibergang beim Kondensieren und beim Sieden" has been enlarged to include additional material on falling film evaporation (Chapter 12) and pressure drop in two-phase flow (Chapter 13). Minor errors in the original text have also been corrected. I would like to express my sincere appreciation to Professor Green, Asso ciate Professor of German at Rensselaer, for his excellent translation and co operation. My thanks go also to Professor Bergles for his close attention to technical and linguistic details. He carefully read the typescript and made many comments and suggestions that helped to improve the manuscript. I hope that the English edition will meet with' a favorable reception and contribute to better understanding and to progress in the field of heat transfer in condensation and boiling. February 1992 K. Stephan Preface to the German-Language Edition This book is a continuation of the series "Heat and Mass Transfer" edited by U. Grigull, in which three volumes have already been published. Its aim is to acquaint students and practicing engineers with heat transfer during condensa tion and boiling, and is intended primarily for students and engineers in mechanical, chemical, electrical, and industrial processing engineering.