Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Electrohydrodynamic Pool Boiling Heat Transfer In Microgravity
Download Electrohydrodynamic Pool Boiling Heat Transfer In Microgravity full books in PDF, epub, and Kindle. Read online Electrohydrodynamic Pool Boiling Heat Transfer In Microgravity ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Electrohydrodynamic Pool Boiling Heat Transfer in Microgravity by : Charles Akira Murakami
Download or read book Electrohydrodynamic Pool Boiling Heat Transfer in Microgravity written by Charles Akira Murakami and published by . This book was released on 2004 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Enhancement of Pool Boiling Heat Transfer and Control of Bubble Motion in Microgravity Using Electric Fields (BCOEL) by :
Download or read book Enhancement of Pool Boiling Heat Transfer and Control of Bubble Motion in Microgravity Using Electric Fields (BCOEL) written by and published by . This book was released on 2001 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis EHD-enhanced Pool Boiling Heat Transfer by : Majid Ali Faani Tabrizi Nezhaad
Download or read book EHD-enhanced Pool Boiling Heat Transfer written by Majid Ali Faani Tabrizi Nezhaad and published by . This book was released on 1997 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of Pool Boiling Heat Transfer Augmentation in R-123 Using the Electrohydrodynamic Technique and Its Long Term Effects by : Alok Kumar
Download or read book Experimental Investigation of Pool Boiling Heat Transfer Augmentation in R-123 Using the Electrohydrodynamic Technique and Its Long Term Effects written by Alok Kumar and published by . This book was released on 1994 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Enhancement of Pool Boiling Heat Transfer with Electrohydrodynamics and Its Fundamental Study by : Sri Laxmi Priya Raghupathi
Download or read book Enhancement of Pool Boiling Heat Transfer with Electrohydrodynamics and Its Fundamental Study written by Sri Laxmi Priya Raghupathi and published by . This book was released on 1998 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Boiling Heat Transfer with Electrical Field (EHD) by : Robert L. Durfee
Download or read book Boiling Heat Transfer with Electrical Field (EHD) written by Robert L. Durfee and published by . This book was released on 1966 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Boiling Experiment Facility for Heat Transfer Studies in Microgravity by : National Aeronaut Administration (Nasa)
Download or read book Boiling Experiment Facility for Heat Transfer Studies in Microgravity written by National Aeronaut Administration (Nasa) and published by . This book was released on 2020-07-28 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pool boiling in microgravity is an area of both scientific and practical interest. By conducting tests in microgravity, it is possible to assess the effect of buoyancy on the overall boiling process and assess the relative magnitude of effects with regards to other "forces" and phenomena such as Marangoni forces, liquid momentum forces, and microlayer evaporation. The Boiling eXperiment Facility is now being built for the Microgravity Science Glovebox that will use normal perfluorohexane as a test fluid to extend the range of test conditions to include longer test durations and less liquid subcooling. Two experiments, the Microheater Array Boiling Experiment and the Nucleate Pool Boiling eXperiment will use the Boiling eXperiment Facility. The objectives of these studies are to determine the differences in local boiling heat transfer mechanisms in microgravity and normal gravity from nucleate boiling, through critical heat flux and into the transition boiling regime and to examine the bubble nucleation, growth, departure and coalescence processes. Custom-designed heaters will be utilized to achieve these objectives. Delombard, Richard and McQuillen, John and Chao, David Glenn Research Center NASA/TM-2008-215148, AIAA Paper-2008-0814, E-16311 WBS 825080.04.02.20.07 GAS-LIQUID INTERACTIONS; MICROGRAVITY; NUCLEATE BOILING; HEAT TRANSFER; HEAT FLUX; GRAVITATION; FLUID DYNAMICS; EVAPORATION; COALESCING; MOMENTUM
Book Synopsis The Effect of Electrode Geometry on the Electrohydrodynamic Enhancement of Pool Boiling Heat Transfer of R123/oil Mixture by : Riyaz Amir Papar
Download or read book The Effect of Electrode Geometry on the Electrohydrodynamic Enhancement of Pool Boiling Heat Transfer of R123/oil Mixture written by Riyaz Amir Papar and published by . This book was released on 1993 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Subcooled Pool Boiling Heat Transfer Mechanisms in Microgravity: Terrier-Improved Orion Sounding Rocket Experiment by :
Download or read book Subcooled Pool Boiling Heat Transfer Mechanisms in Microgravity: Terrier-Improved Orion Sounding Rocket Experiment written by and published by . This book was released on 2000 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781723536205 Total Pages :292 pages Book Rating :4.5/5 (362 download)
Book Synopsis Bubble Dynamics, Two-Phase Flow, and Boiling Heat Transfer in Microgravity by : National Aeronautics and Space Administration (NASA)
Download or read book Bubble Dynamics, Two-Phase Flow, and Boiling Heat Transfer in Microgravity written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-23 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report contains two independent sections. Part one is titled Terrestrial and Microgravity Pool Boiling Heat Transfer and Critical heat flux phenomenon in an acoustic standing wave. Terrestrial and microgravity pool boiling heat transfer experiments were performed in the presence of a standing acoustic wave from a platinum wire resistance heater using degassed FC-72 Fluorinert liquid. The sound wave was created by driving a half wavelength resonator at a frequency of 10.15 kHz. Microgravity conditions were created using the 2.1 second drop tower on the campus of Washington State University. Burnout of the heater wire, often encountered with heat flux controlled systems, was avoided by using a constant temperature controller to regulate the heater wire temperature. The amplitude of the acoustic standing wave was increased from 28 kPa to over 70 kPa and these pressure measurements were made using a hydrophone fabricated with a small piezoelectric ceramic. Cavitation incurred during experiments at higher acoustic amplitudes contributed to the vapor bubble dynamics and heat transfer. The heater wire was positioned at three different locations within the acoustic field: the acoustic node, antinode, and halfway between these locations. Complete boiling curves are presented to show how the applied acoustic field enhanced boiling heat transfer and increased critical heat flux in microgravity and terrestrial environments. Video images provide information on the interaction between the vapor bubbles and the acoustic field. Part two is titled, Design and qualification of a microscale heater array for use in boiling heat transfer. This part is summarized herein. Boiling heat transfer is an efficient means of heat transfer because a large amount of heat can be removed from a surface using a relatively small temperature difference between the surface and the bulk liquid. However, the mechanisms that govern boiling heat transfer are not well understood. Measurements of wall te...
Book Synopsis Acoustic Driven Nucleate Pool Boiling Heat Transfer in Terrestrial and Microgravity Environments by : Jeffrey S. Sitter
Download or read book Acoustic Driven Nucleate Pool Boiling Heat Transfer in Terrestrial and Microgravity Environments written by Jeffrey S. Sitter and published by . This book was released on 1995 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transient Effects of Microgravity on Pool and Low Velocity Flow Boiling Heat Transfer by : Tien-Chen Wang
Download or read book Transient Effects of Microgravity on Pool and Low Velocity Flow Boiling Heat Transfer written by Tien-Chen Wang and published by . This book was released on 1993 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bubble Dynamics and Boiling Heat Transfer by : Samuel Siedel
Download or read book Bubble Dynamics and Boiling Heat Transfer written by Samuel Siedel and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since boiling heat transfer affords a very effective means to transfer heat, it is implemented in numerous technologies and industries ranging from large power generation plants to micro-electronic thermal management. Although having been a subject of research for several decades, an accurate prediction of boiling heat transfer is still challenging due to the complexity of the coupled mechanisms involved. It appears that the boiling heat transfer coefficient is intimately related to bubble dynamics (i.e. bubble nucleation, growth and detachment) as well as factors such as nucleation site density and interaction between neighbouring and successive bubbles. In order to contribute to the understanding of the boiling phenomenon, an experimental investigation of saturated pool boiling from a single or two neighbouring artificial nucleation sites on a polished copper surface has been performed. The bubble growth dynamics has been characterized for different wall superheats and a experimental growth law has been established. The interaction between successive bubbles from the same nucleation site has been studied, showing the bubble shape oscillations that can be caused by these interactions. The forces acting on a growing bubble has been reviewed, and a complete momentum balance has been made for all stages of bubble growth. The curvature along the interface has been measured, and indications concerning the mechanism of bubble detachment have been suggested. The rise of bubble after detachment has been investigated, and the maximum velocity reached before a change of direction has been estimated and compared to existing models from the literature. The interaction between bubbles growing side by side has been studied: the generation and propagation of a wave front during the coalescence of two bubbles has been highlighted. As boiling heat transfer enhancement techniques are being imagined and developed, this study also focuses on the electrohydrodynamic enhancement technique. Boiling experiments have been performed in the presence of electric fields, and their effects on heat transfer and bubble dynamics have been characterized. Although the volume of the bubbles at detachment and the relationship between the bubble frequency and the wall superheat were not affected, the bubble growth curve was modified. The bubbles were elongated in the direction of the electric field, and this elongation was estimated and compared to other studies from the literature. The rising velocity of the bubble was reduced in the presence of electric field, and the behaviour of bubbles growing side by side was modified, the electric field causing the bubbles to repeal each other. These results, obtained in a fully controlled environment, provide compelling evidence that electric fields can be implemented to alter the bubble dynamics and subsequently heat transfer rates during boiling of dielectric fluids.
Book Synopsis Electrohydrodynamic Boiling Heat Transfer by : Harry Y. Choi
Download or read book Electrohydrodynamic Boiling Heat Transfer written by Harry Y. Choi and published by . This book was released on 1962 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Boiling Experiment Facility for Heat Transfer Studies in Microgravity by : Richard Delombard
Download or read book Boiling Experiment Facility for Heat Transfer Studies in Microgravity written by Richard Delombard and published by BiblioGov. This book was released on 2013-07 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pool boiling in microgravity is an area of both scientific and practical interest. By conducting tests in microgravity, it is possible to assess the effect of buoyancy on the overall boiling process and assess the relative magnitude of effects with regards to other "forces" and phenomena such as Marangoni forces, liquid momentum forces, and microlayer evaporation. The Boiling eXperiment Facility is now being built for the Microgravity Science Glovebox that will use normal perfluorohexane as a test fluid to extend the range of test conditions to include longer test durations and less liquid subcooling. Two experiments, the Microheater Array Boiling Experiment and the Nucleate Pool Boiling eXperiment will use the Boiling eXperiment Facility. The objectives of these studies are to determine the differences in local boiling heat transfer mechanisms in microgravity and normal gravity from nucleate boiling, through critical heat flux and into the transition boiling regime and to examine the bubble nucleation, growth, departure and coalescence processes. Custom-designed heaters will be utilized to achieve these objectives.
Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781793902245 Total Pages :26 pages Book Rating :4.9/5 (22 download)
Book Synopsis Boiling Experiment Facility for Heat Transfer Studies in Microgravity by : National Aeronautics and Space Adm Nasa
Download or read book Boiling Experiment Facility for Heat Transfer Studies in Microgravity written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2019-01-14 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pool boiling in microgravity is an area of both scientific and practical interest. By conducting tests in microgravity, it is possible to assess the effect of buoyancy on the overall boiling process and assess the relative magnitude of effects with regards to other "forces" and phenomena such as Marangoni forces, liquid momentum forces, and microlayer evaporation. The Boiling eXperiment Facility is now being built for the Microgravity Science Glovebox that will use normal perfluorohexane as a test fluid to extend the range of test conditions to include longer test durations and less liquid subcooling. Two experiments, the Microheater Array Boiling Experiment and the Nucleate Pool Boiling eXperiment will use the Boiling eXperiment Facility. The objectives of these studies are to determine the differences in local boiling heat transfer mechanisms in microgravity and normal gravity from nucleate boiling, through critical heat flux and into the transition boiling regime and to examine the bubble nucleation, growth, departure and coalescence processes. Custom-designed heaters will be utilized to achieve these objectives. Delombard, Richard and McQuillen, John and Chao, David Glenn Research Center 825080.04.02.20.07
Book Synopsis Heater Geometry and Heat Flux Effects on Subcooled, Thin Wire, Nucleate Pool Boiling in Microgravity by : Troy Munro
Download or read book Heater Geometry and Heat Flux Effects on Subcooled, Thin Wire, Nucleate Pool Boiling in Microgravity written by Troy Munro and published by . This book was released on 2012 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: PUBLIC ABSTRACT: The purpose of this thesis is to study the effects of microgravity, surface geometry, and heat dissipation per unit area (heat flux) on boiling heat transfer. Boiling is able to move a significant amount of heat for a small area in comparison to other heat transfer methods. Space systems could benefit from the development of thermal management systems that use boiling heat transfer because they would be smaller, more robust, and less expensive. However, boiling is an extremely complicated process which has no comprehensive models to predict its behavior. Multiple correlations have been developed which relate heat transfer efficiencies to various system parameters, but they can only be applied to specific heat transfer systems, lack considerations for the actual mechanisms involved in boiling, and give erroneous results if used beyond their limited applications. This research concluded that twisting thin wire heaters creates crevices that reduce the amount of heat needed to make the system boil. This is particularly beneficial in microgravity because heat transfer prior to boiling is very inefficient. Additionally, this study characterized the observation of a new mode of jet flows, which results in many small bubbles leaving the wire and creates a fluid flow that would not normally exist in microgravity. The results of this study show that sustained boiling can exist in microgravity and in some instances can be more effective than boiling in terrestrial gravity.