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Author: Jelliffe Kevin Jackson
Publisher:
Published: 2006
Total Pages:
ISBN-13:
DOWNLOAD EBOOKIt is also found that by utilizing a simple model that includes the effect of flow structure and incorporating the enhancement provided by the local heat flux, significant improvement in the predictive capabilities of the Müller-Steinhagen and Jamialahmadi correlation for nucleate flow boiling is achieved.
Author: Christopher James Velat
Publisher:
Published: 2004
Total Pages:
ISBN-13:
DOWNLOAD EBOOKTemperature profiles were produced from 6 thermocouples that were placed on the external wall surface of the transfer line and insulated with Melamine foam insulation. Chilldown times were computed from temperature profiles and an approximate Leidenfrost temperature of -98°C was observed. Large circumferential temperature gradients were observed during chilldown and moderate axial gradients were also observed during the passing of the quenching front. The mass flux of the experiments had a considerable impact on the chilldown time and magnitude of the temperature gradients. The experimental facility and the current data will be used in continued research to develop a comprehensive and fundamentally based numerical chilldown model.
Author: Dmitry G Luchinsky
Publisher:
Published: 2022
Total Pages: 0
ISBN-13:
DOWNLOAD EBOOKWe consider problem of modeling and controlling two-phase cryogenic flows during ground loading operations. We introduce homogeneous moving front and separated two-phase flow solvers that are capable of fast and accurate online predictions of flow dynamics during chilldown and transfer under nominal conditions and in the presence of faults. Concise sets of cryogenic correlations are proposed in each case. We present results of application of proposed solvers to the analysis of chilldown in large-scale experimental cryogenic transfer line build in Kennedy Space Center. We discuss optimization of parameters of cryogenic models obtained using general inferential framework and an application of the solvers to the fault detection and evaluation based on D-matrix approach. It is shown that solver,Äôs predictions are in good agreement with experimental data obtained for liquid nitrogen flow in nominal regime and in the presence of faults.
Author: Raymond Virgil Smith
Publisher: Forgotten Books
Published: 2017-10-28
Total Pages: 86
ISBN-13: 9781528425247
DOWNLOAD EBOOKExcerpt from Critical Two-Phase Flow for Cryogenic Fluids This work presents a state-of-the-art survey intended to be useful to a designer of equipment involving two - phase flow of cryogenic fluids. It is desirable to assess the probability of critical, or choking, flow in such a system and, if possible, estimate the critical flow rate. The literature is surveyed, primarily since Smith and the predictive results for several analytical models are evaluated and com pared with experimental data. These results are discussed; however, no firm conclusions are reached because, often, the spread of experimental data is equivalent to that of the predictive results from the models. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Raymond Virgil Smith
Publisher:
Published: 1973
Total Pages: 84
ISBN-13:
DOWNLOAD EBOOKAuthor: Quan-Sheng Shu
Publisher: Springer Science & Business Media
Published: 2000-10-31
Total Pages: 984
ISBN-13: 9780306464430
DOWNLOAD EBOOKIn recent years, the technology of cryogenic comminution has been widely applied in the field of chemical engineering, food making, medicine production, and particularly in recycling of waste materials. Because of the increasing pollution of waste tires and the shortage of raw rubber resource, the recycling process for waste rubber products has become important and commercially viable. This technology has shown a great number of advantages such as causing no environmental pollution, requiring low energy consumption and producing high quality products. Hence, the normal crusher which was used to reclaim materials, such as waste tires, nylon, plastic and many polymer materials at atmospheric 12 temperature is being replaced by a cryogenic crusher. • In the cryogenic crusher, the property of the milled material is usually very sensitive to temperature change. When a crusher is in operation, it will generate a great deal of heat that causes the material temperature increased. Once the temperature increases over the vitrification temperature, the material property will change and lose the brittle behavior causing the energy consumption to rise sharply. Consequently, the comminution process cannot be continued. Therefore, it is believed that the cryogenic crusher is the most critical component in the cryogenic comminution system. The research on the temperature increase and energy consumption in the cryogenic crusher is not only to reduce the energy consumption of the crasher, but also to reduce the energy consumption of the cryogenic system.
Author: Mirza Mohammed Shah
Publisher: John Wiley & Sons
Published: 2021-02-10
Total Pages: 384
ISBN-13: 1119618665
DOWNLOAD EBOOKA guide to two-phase heat transfer theory, practice, and applications Designed primarily as a practical resource for design and development engineers, Two-Phase Heat Transfer contains the theories and methods of two-phase heat transfer that are solution oriented. Written in a clear and concise manner, the book includes information on physical phenomena, experimental data, theoretical solutions, and empirical correlations. A very wide range of real-world applications and formulas/correlations for them are presented. The two-phase heat transfer systems covered in the book include boiling, condensation, gas-liquid mixtures, and gas-solid mixtures. The author—a noted expert in this field—also reviews the numerous applications of two-phase heat transfer such as heat exchangers in refrigeration and air conditioning, conventional and nuclear power generation, solar power plants, aeronautics, chemical processes, petroleum industry, and more. Special attention is given to heat exchangers using mini-channels which are being increasingly used in a variety of applications. This important book: Offers a practical guide to two-phase heat transfer Includes clear guidance for design professionals by identifying the best available predictive techniques Reviews the extensive literature on heat transfer in two-phase systems Presents information to aid in the design and analysis of heat exchangers. Written for students and research, design, and development engineers, Two-Phase Heat Transfer is a comprehensive volume that covers the theory, methods, and applications of two-phase heat transfer.
Author: RAYMOND VIRGIL. SMITH
Publisher:
Published: 2018
Total Pages: 0
ISBN-13: 9781033778432
DOWNLOAD EBOOKAuthor:
Publisher: BoD – Books on Demand
Published: 2019-09-11
Total Pages: 408
ISBN-13: 1789844460
DOWNLOAD EBOOKHeat and mass transfer is the core science for many industrial processes as well as technical and scientific devices. Automotive, aerospace, power generation (both by conventional and renewable energies), industrial equipment and rotating machinery, materials and chemical processing, and many other industries are requiring heat and mass transfer processes. Since the early studies in the seventeenth and eighteenth centuries, there has been tremendous technical progress and scientific advances in the knowledge of heat and mass transfer, where modeling and simulation developments are increasingly contributing to the current state of the art. Heat and Mass Transfer - Advances in Science and Technology Applications aims at providing researchers and practitioners with a valuable compendium of significant advances in the field.
Author: Suvanjan Bhattacharyya
Publisher: Springer Nature
Published: 2023-05-20
Total Pages: 541
ISBN-13: 9811969701
DOWNLOAD EBOOKThis book presents the select proceedings of the 48th National Conference on Fluid Mechanics and Fluid Power (FMFP 2021) held at BITS Pilani in December 2021. It covers the topics such as fluid mechanics, measurement techniques in fluid flows, computational fluid dynamics, instability, transition and turbulence, fluid‐structure interaction, multiphase flows, micro- and nanoscale transport, bio-fluid mechanics, aerodynamics, turbomachinery, propulsion and power. The book will be useful for researchers and professionals interested in the broad field of mechanics.
