Design Fabrication Testing And Modeling Of A High Temperature Printed Circuit Heat Exchanger

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Design, Fabrication, Testing, and Modeling of a High-temperature Printed Circuit Heat Exchanger

Author : Minghui Chen
Publisher :
ISBN 13 :
Total Pages : 90 pages
Book Rating : 4.:/5 (921 download)

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Book Synopsis Design, Fabrication, Testing, and Modeling of a High-temperature Printed Circuit Heat Exchanger by : Minghui Chen

Download or read book Design, Fabrication, Testing, and Modeling of a High-temperature Printed Circuit Heat Exchanger written by Minghui Chen and published by . This book was released on 2015 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the very-high-temperature reactor (VHTR) missions is to produce electricity and/or to provide process heat for applications with high efficiency. The electricity generation or process heat applications of these advanced reactors greatly rely on an effective intermediate heat exchanger (IHX) that transfers heat from the primary fluid (i.e., helium) to the secondary fluid, which can be helium, molten salt, water/steam, or supercritical carbon dioxide. The IHX performance is directly related to the efficiency and safety of the overall nuclear system. A printed circuit heat exchanger (PCHE) is one of the leading IHX candidates due to its high effectiveness and compactness, as well as its robustness. In the current study, a scaled-down PCHE was fabricated using Alloy 617 plates and Alloy 800H headers. The PCHE fabrication processes, i.e., photochemical etching, diffusion bonding and brazing, are described. This PCHE has eight hot and eight cold plates with 11 semicircular wavy (zigzag) channels in each plate with the following channel dimensions: 1.2 mm hydraulic diameter, 24.6 mm pitch in the flow (stream-wise) direction, 2.5 mm pitch in the span-wise direction, and 15o wavy pitch angle. The thermal-hydraulic performance of the PCHE is investigated experimentally in the high-temperature helium test facility (HTHF) at The Ohio State University. The PCHE inlet temperatures and pressures are varied up to 350 oC/2 MPa for the cold side and 700 oC/2 MPa for the hot side, respectively, while the maximum mass flow rate of helium reaches 30 kg/h. The corresponding maximum channel Reynolds number for both the hot and cold sides is about 3,000, including the laminar flow and laminar-to-turbulent transitional flow regimes. Comparisons between the obtained experimental data and available empirical correlations in the literature have been carried out. Both hot-side and cold-side friction characteristics of the PCHE with the wavy channels follow the trend established in the empirical model well, while large deviation is presented in the low Reynolds number region. Heat transfer characteristics obtained from model available in the literature show a discrepancy from the experimental results. Large deviation appears in the low Reynolds number region as well. A new heat transfer correlation based on experimental data has been subsequently proposed for the current wavy-channel PCHE. Finally, transients that involve variations of the mass flow rate and temperature on the hot and cold sides of the scaled-down PCHE are investigated by numerical method. A dynamic model has been verified using a commercial software DYNSIM and validated using the experimental data. The model predicts the dynamic trends well and is available for use in the future.

Design, Fabrication, Performance Testing, and Modeling of Diffusion Bonded Compact Heat Exchangers in a High-temperature Helium Test Facility

Download Design, Fabrication, Performance Testing, and Modeling of Diffusion Bonded Compact Heat Exchangers in a High-temperature Helium Test Facility PDF Online Free

Author : Sai Kiran Mylavarapu
Publisher :
ISBN 13 :
Total Pages : 196 pages
Book Rating : 4.:/5 (771 download)

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Book Synopsis Design, Fabrication, Performance Testing, and Modeling of Diffusion Bonded Compact Heat Exchangers in a High-temperature Helium Test Facility by : Sai Kiran Mylavarapu

Download or read book Design, Fabrication, Performance Testing, and Modeling of Diffusion Bonded Compact Heat Exchangers in a High-temperature Helium Test Facility written by Sai Kiran Mylavarapu and published by . This book was released on 2011 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: PCHEs are plate-type heat exchangers, fabricated by photochemical machining and diffusion bonding. In the current research work, both these fabrication techniques have been demonstrated on Alloy 617 plates, a high-temperature candidate material for VHTR structural components. Two counter-current flow PCHEs have been designed and fabricated using Alloy 617 plates and are installed in a small-scale high-temperature helium test facility (HTHF). The HTHF has been designed and constructed at The Ohio State University as part of this research to facilitate experiments at temperatures and pressures up to 800oC and 3 MPa, respectively.

Numerical Modeling of a Printed Circuit Heat Exchanger Based on Experimental Results from the High-temperature Helium Test Facility

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Author : Kevin R. Wegman
Publisher :
ISBN 13 :
Total Pages : 127 pages
Book Rating : 4.:/5 (968 download)

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Book Synopsis Numerical Modeling of a Printed Circuit Heat Exchanger Based on Experimental Results from the High-temperature Helium Test Facility by : Kevin R. Wegman

Download or read book Numerical Modeling of a Printed Circuit Heat Exchanger Based on Experimental Results from the High-temperature Helium Test Facility written by Kevin R. Wegman and published by . This book was released on 2016 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Department of Energy’s Generation IV Program has identified six advanced reactor technologies to be investigated for possible deployment in both energy and process heat generation. Most of these reactor concepts, such as the Very-High-Temperature Reactor (VHTR) and the Molten Salt Reactor (MSR), operate at high temperatures and/or pressures, requiring intermediate heat exchangers (IHXs) to transfer heat from the primary loop to secondary and tertiary loops. The VHTR has a design core outlet temperature of up to 1000 °C, and thus a robust high temperature IHX is required for full VHTR technology maturity. One such candidate for the IHX in these advanced reactors is the printed circuit heat exchanger (PCHE). The PCHE has an extremely high effectiveness and compactness, and the fabrication methods lead to great robustness as well. In this study, numerical simulations using a commercial code, COMSOL Multiphysics, were investigated and compared to the experimental results obtained from straight channel PCHE testing at the High-Temperature Helium test Facility (HTHF) at The Ohio State University (OSU). A post-machining analysis was completed for the frontal face geometry of the PCHE flow channels, and the results were compared to the nominal geometric values. The actual channel diameter was found to be 2.04±0.12 mm, compared to the nominal value of 2.0 mm, and the actual channel height was found to be 0.9±0.11 mm, compared to the nominal value of 1.0 mm. These new values were tested in the numerical model geometry as well as the nominal values. Three model were created for numerical investigation of the experimental results; a two-channel model, a two-plate model and a full-geometry model. A grid sensitivity study was completed for the two-channel model using a laminar flow model. Results were obtained for the two-channel model and was compared to the results obtained in the experiment. The heat transfer characteristics were over predicted in the numerical results, while the numerical pressure drops predicted the experimental values well. Preliminary results using a coarsened mesh were obtained for the two-plate and full-geometry model. A methodology for calculations of local friction factor and Nusselt number effects from numerical data is presented, and the resulting analyses are discussed. The globally calculated values are compared to the locally calculated values. The global and locally calculated results do not always match, explained by numerical errors related to the use of differentials for first ordered mesh cell elements.

Development of Compact Heat Exchangers for Very High-temperature Gas-cooled Reactors

Author : Sai K. Mylavarapu
Publisher :
ISBN 13 :
Total Pages : 110 pages
Book Rating : 4.:/5 (289 download)

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Book Synopsis Development of Compact Heat Exchangers for Very High-temperature Gas-cooled Reactors by : Sai K. Mylavarapu

Download or read book Development of Compact Heat Exchangers for Very High-temperature Gas-cooled Reactors written by Sai K. Mylavarapu and published by . This book was released on 2008 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The U.S. Department of Energy's Generation IV Program has generated considerable interest for High-Temperature Gas-Cooled Reactors (HTGR), in particular, the Very-High-Temperature Reactor (VHTR). VHTR is one of the six reactor concepts selected by the Generation IV International Forum and is anticipated to be reactor type for the Next Generation Nuclear Plant (NGNP). The VHTR concept, with a projected plant design service life of 60 years, is being actively researched not only due to its near-term deployment potential but also because it offers a broad range of process heat applications ranging from electricity generation to hydrogen co-generation. To efficiently and reliably transfer the thermal output from the reactor core, VHTRs require high temperature (900-950 0C) and high integrity heat exchangers with high effectiveness during normal and off-normal conditions. A class of compact plate-type heat exchangers, namely, Printed Circuit Heat Exchangers (PCHEs), made of high-temperature materials and found to have these above characteristics are being increasingly pursued for heavy duty applications. The current thesis work is a part of a larger research project aimed at investigating the design, fabrication, testing, modeling, and optimization of PCHEs at operating temperatures proposed to be realized in VHTRs. In the present work, two PCHEs were designed and fabricated. In addition, a detailed design of a high-temperature helium test facility to test the thermal-hydraulic performance of these PCHEs was completed. Owing to the high operating temperatures and pressures, a detailed investigation on various high-temperature materials was carried out to aid in the design of the test facility and the heat exchangers. The study showed that Alloys 617 and 230 are the leading candidate materials for high-temperature applications. However, economics and material availability in the required form dictated the final design operating conditions. The helium test facility is of Alloy 800HT construction and is currently being constructed at The Ohio State University. It is intended to facilitate experiments at operating temperatures and pressures up to 900 0C and 3 MPa, respectively. Two PCHEs, each having 10 hot and 10 cold plates with 12 channels in each plate, were fabricated using Alloy 617 plates. In addition, the processes related to the fabrication of PCHEs, namely photochemical machining and diffusion bonding techniques were investigated and successfully established for Alloy 617 plates. The PCHEs will be tested in the helium test facility for their heat transfer and pressure drop characteristics at various operating temperatures and pressures. The experimental database generated from the test facility will then be used for model development and computer code validation. In summary, the current thesis focuses on the study of the high-temperature materials, design of the helium test facility, design, development, and fabrication of the high-temperature PCHEs.

Fundamentals of Heat Exchanger Design

Author : Ramesh K. Shah
Publisher : John Wiley & Sons
ISBN 13 : 9780471321712
Total Pages : 978 pages
Book Rating : 4.3/5 (217 download)

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Book Synopsis Fundamentals of Heat Exchanger Design by : Ramesh K. Shah

Download or read book Fundamentals of Heat Exchanger Design written by Ramesh K. Shah and published by John Wiley & Sons. This book was released on 2003-08-11 with total page 978 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive and unique source integrates the material usually distributed among a half a dozen sources. * Presents a unified approach to modeling of new designs and develops the skills for complex engineering analysis. * Provides industrial insight to the applications of the basic theory developed.

Thermohydraulic and Mechanical Modeling of Printed Circuit Heat Exchangers for Next Generation Nuclear Service

Author : Ian William Jentz
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (134 download)

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Book Synopsis Thermohydraulic and Mechanical Modeling of Printed Circuit Heat Exchangers for Next Generation Nuclear Service by : Ian William Jentz

Download or read book Thermohydraulic and Mechanical Modeling of Printed Circuit Heat Exchangers for Next Generation Nuclear Service written by Ian William Jentz and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work an approach to thermodyraulic and mechanical modeling of a full 3-dimensional Printed Circuit Heat Exchanger is presented. A new approach to Finite Element analysis of the fluid and structure using homogenization of micro-channel behavior is developed. The accuracy of the thermohydrualic model is verified against experiment for a large range of flow conditions. Using the results from the thermohydraulic model as input to the mechanical FE model allows loading and stress within the PCHE to by resolved. Coupling of the thermodynamic and mechanical models allows the performance and mechanical integrity of all parts of the PCHE to be evaluated simultaneously. Motivation for using airfoil PCHEs in s-CO2 applications is given and the design of PCHEs are briefly discussed. A thermohydraulic model using a homogenized heat exchanger thermohydraulics (HHXT) approach has been developed for PCHE applications. The HHXT model provides a fully resolved PCHE model without the complexity inherent in resolving all facets of the micro-channel geometry throughout the core. The HHXT approach expands on previous work by Urquiza in homogenizing the PCHE micro-channel core as an anisotropic media. Flow distribution in the PCHE is determined using a porous media approach. Heat transfer between fluids is modeled using heat transfer coefficients and is coupled to a conduction model of the solid PCHE body. The Homogenized Heatexchanger Thermohydraulics model properly resolves American Society of Mechanical Engineers Boiler and Pressure Vessel Code (BPVC) Sec-3 loading conditions without the complexity inherent in resolving all facets of the PCHE geometry. The accuracy of the model is verified through experimental validation. A purpose designed zig-zag channel test PCHE was tested over a wide range of flow, using 60 separate tests with Reynolds number ranging from 1,790 to 64,200. Embedded fiber-optic temperature sensors measured 2-dimensional temperature distribution within the test recuperator. Along with measurement of inlet and outlet conditions, the internal temperature measurements provide 7,542 distributed measurements for each flow rate tested. This allowed the verification of HHXT against a large set of data. Combined modelling and measurement allowed for better insight into PCHE performance. The interaction of side entrance and transition regions could be resolved. Flow redistribution within the cold CO2 of the zig-zag PCHE was found to be a major factor in the distribution of temperature. Mechanical analysis per BPVC section III design by analysis rules is demonstrated. Linearized stress analysis was used to break the stress within micro-channel walls into membrane and bending components needed in BPVC stress intensity calculations. A homogenized approach to modeling mechanical loads in the full 3-dimensional PCHE is used. The method consisted of separate micro-channel structure and PCHE structure analyses. The resulting model resolved pressurization and thermal stresses within the zig-zag test PCHE. Stress intensities within 108,000 distinct micro-channel walls could be determined. Thermal stress arising from the differential expansion of the PCHE body was found to contribute the most stress. The zig-zag test PCHE meets BPVC section III stress intensity limits at design operating conditions. Additionally the measurement of airfoil micro-channel heat transfer and hydraulic performance is made. As direct internal measurement of bulk CO2 or fluid-wall temperatures within the channels of the airfoil PCHE is not possible, convective heat transfer is calculated from inlet and outlet CO2 conditions and simple models of heat transfer within the recuperator. Since CO2 properties changed over the length of the recuperator, a 1D discrete model of the recuperator for calculating localized values of j and f is presented.

Heat Exchangers

Author : S. M. Sohel Murshed
Publisher : BoD – Books on Demand
ISBN 13 : 9535130935
Total Pages : 274 pages
Book Rating : 4.5/5 (351 download)

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Book Synopsis Heat Exchangers by : S. M. Sohel Murshed

Download or read book Heat Exchangers written by S. M. Sohel Murshed and published by BoD – Books on Demand. This book was released on 2017-04-27 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presenting contributions from renowned experts in the field, this book covers research and development in fundamental areas of heat exchangers, which include: design and theoretical development, experiments, numerical modeling and simulations. This book is intended to be a useful reference source and guide to researchers, postgraduate students, and engineers in the fields of heat exchangers, cooling, and thermal management.

Compact Heat Exchangers

Author : J.E. Hesselgreaves
Publisher : Elsevier
ISBN 13 : 0080529542
Total Pages : 417 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Compact Heat Exchangers by : J.E. Hesselgreaves

Download or read book Compact Heat Exchangers written by J.E. Hesselgreaves and published by Elsevier. This book was released on 2001-05-08 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the ideas and industrial concepts in compact heat exchanger technology that have been developed in the last 10 years or so. Historically, the development and application of compact heat exchangers and their surfaces has taken place in a piecemeal fashion in a number of rather unrelated areas, principally those of the automotive and prime mover, aerospace, cryogenic and refrigeration sectors. Much detailed technology, familiar in one sector, progressed only slowly over the boundary into another sector. This compartmentalisation was a feature both of the user industries themselves, and also of the supplier, or manufacturing industries. These barriers are now breaking down, with valuable cross-fertilisation taking place. One of the industrial sectors that is waking up to the challenges of compact heat exchangers is that broadly defined as the process sector. If there is a bias in the book, it is towards this sector. Here, in many cases, the technical challenges are severe, since high pressures and temperatures are often involved, and working fluids can be corrosive, reactive or toxic. The opportunities, however, are correspondingly high, since compacts can offer a combination of lower capital or installed cost, lower temperature differences (and hence running costs), and lower inventory. In some cases they give the opportunity for a radical re-think of the process design, by the introduction of process intensification (PI) concepts such as combining process elements in one unit. An example of this is reaction and heat exchange, which offers, among other advantages, significantly lower by-product production.To stimulate future research, the author includes coverage of hitherto neglected approaches, such as that of the Second Law (of Thermodynamics), pioneered by Bejan and co- workers. The justification for this is that there is increasing interest in life-cycle and sustainable approaches to industrial activity as a whole, often involving exergy (Second Law) analysis. Heat exchangers, being fundamental components of energy and process systems, are both savers and spenders of exergy, according to interpretation.

Heat Exchanger Design Handbook, Second Edition

Author : Kuppan Thulukkanam
Publisher : CRC Press
ISBN 13 : 1439842124
Total Pages : 1275 pages
Book Rating : 4.4/5 (398 download)

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Book Synopsis Heat Exchanger Design Handbook, Second Edition by : Kuppan Thulukkanam

Download or read book Heat Exchanger Design Handbook, Second Edition written by Kuppan Thulukkanam and published by CRC Press. This book was released on 2013-05-20 with total page 1275 pages. Available in PDF, EPUB and Kindle. Book excerpt: Completely revised and updated to reflect current advances in heat exchanger technology, Heat Exchanger Design Handbook, Second Edition includes enhanced figures and thermal effectiveness charts, tables, new chapter, and additional topics––all while keeping the qualities that made the first edition a centerpiece of information for practicing engineers, research, engineers, academicians, designers, and manufacturers involved in heat exchange between two or more fluids. See What’s New in the Second Edition: Updated information on pressure vessel codes, manufacturer’s association standards A new chapter on heat exchanger installation, operation, and maintenance practices Classification chapter now includes coverage of scrapped surface-, graphite-, coil wound-, microscale-, and printed circuit heat exchangers Thorough revision of fabrication of shell and tube heat exchangers, heat transfer augmentation methods, fouling control concepts and inclusion of recent advances in PHEs New topics like EMbaffle®, Helixchanger®, and Twistedtube® heat exchanger, feedwater heater, steam surface condenser, rotary regenerators for HVAC applications, CAB brazing and cupro-braze radiators Without proper heat exchanger design, efficiency of cooling/heating system of plants and machineries, industrial processes and energy system can be compromised, and energy wasted. This thoroughly revised handbook offers comprehensive coverage of single-phase heat exchangers—selection, thermal design, mechanical design, corrosion and fouling, FIV, material selection and their fabrication issues, fabrication of heat exchangers, operation, and maintenance of heat exchangers —all in one volume.

Exploratory Development of High-temperature Heat Exchangers

Author : O. A. Buchmann
Publisher :
ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Exploratory Development of High-temperature Heat Exchangers by : O. A. Buchmann

Download or read book Exploratory Development of High-temperature Heat Exchangers written by O. A. Buchmann and published by . This book was released on 1966 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this program is to establish and verify design concepts for heat exchangers that process air at temperatures that are considerably in excess of the melting points of conventional, or practical, heat exchanger materials. All design and fabrication associated with the program will be based on the use of uncoated L-605, operating at a maximum metal temperature of 1800 F. The approach being used in the program involves (1) definition and layout of a reference design using the operating requirements for a fullscale heat exchanger, (2) experimental verification of the structural, manufacturing, and performance features of this design, and (3) design, fabrication, and testing of a small-scale heat exchanger that incorporates the characteristic features of the reference design. This report represents the work accomplished in (1) fabrication of the test heat exchanger components, (2) test heat exchanger design, and (3) test planning. The coolant header insert design and coolant pressure drop summary are included. Included is the performance of the test heat exchanger with air substituted for hydrogen as the coolant. The fabrication of the test heat exchanger components is discussed. (Author).

Mechanical Characterization and Simulation Modeling of Printed Circuit Heat Exchangers for High Temperature Nuclear Application

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Author : Heramb Prakash Mahajan
Publisher :
ISBN 13 :
Total Pages : 253 pages
Book Rating : 4.:/5 (125 download)

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Book Synopsis Mechanical Characterization and Simulation Modeling of Printed Circuit Heat Exchangers for High Temperature Nuclear Application by : Heramb Prakash Mahajan

Download or read book Mechanical Characterization and Simulation Modeling of Printed Circuit Heat Exchangers for High Temperature Nuclear Application written by Heramb Prakash Mahajan and published by . This book was released on 2021 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Design and Fabrication of a High-performance Heat Exchanger Using an Optimized Three-dimensional Surface Structure Through Additive Manufacturing

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Author : Seth T. Waters
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (141 download)

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Book Synopsis Design and Fabrication of a High-performance Heat Exchanger Using an Optimized Three-dimensional Surface Structure Through Additive Manufacturing by : Seth T. Waters

Download or read book Design and Fabrication of a High-performance Heat Exchanger Using an Optimized Three-dimensional Surface Structure Through Additive Manufacturing written by Seth T. Waters and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Author's abstract: A heat exchanger is a device used to transfer thermal energy between two intertwining fluid pathways. In this study, the design of a novel heat exchanger is proposed using functional gradient double gyroid structure. The complex internal geometries of the gyroid structure significantly increases the surface area to volume ratio, and potentially could expressively improve efficiency of the heat transfer. The proposed idea provides a new approach for the design of a high-efficiency heat exchanger. In order to fabricate the complex structured heat exchanger system additive manufacturing is adapted instead of traditionally subtractive manufacturing techniques or casting. The prototypes of fully enclosed functional gradient gyroid heat exchanger system were successfully printed through Stereolithography (SLA) methods. The 3D printed prototypes approved that the proposed designs worked functionally. The Metal Fused Deposition Modeling was utilized with copper filament to create a high-performance heat exchanger. Models with variable structural gradient and thickness were fabricated, and the effects of structure, printing parameters, and post processing parameters on final part quality were studied. Results shown that shrinkage can occur up to 11.72% in cross layer directions, fractures tend to propagate from saddle points in printed gyroid structures, and porosity was shown to decrease from 40% to 18% with a wall thickness decrease of 1.71mm . It was concluded from this study that using Metal Fused Deposition Modeling additive manufacturing to produce high-performance heat exchangers using minimal surface structures is not feasible with current post processing techniques . Other post processing techniques such as liquid phase sintering could possibly be utilized to reduce shrinkage and lower the porosity. Other methods such as binder jetting could be used to fabricate the heat exchanger with potentially less porosity and more uniform shrinkage.

Design and Operation of Heat Exchangers and their Networks

Author : Wilfried Roetzel
Publisher : Academic Press
ISBN 13 : 0128178957
Total Pages : 596 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Design and Operation of Heat Exchangers and their Networks by : Wilfried Roetzel

Download or read book Design and Operation of Heat Exchangers and their Networks written by Wilfried Roetzel and published by Academic Press. This book was released on 2019-10-04 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design and Operation of heat Exchangers and Their Networks presents a comprehensive and detailed analysis on the thermal design methods for the most common types of heat exchangers, with a focus on their networks, simulation procedures for their operations, and measurement of their thermal performances. The book addresses the fundamental theories and principles of heat transfer performance of heat exchangers and their applications and then applies them to the use of modern computing technology. Topics discussed include cell methods for condensers and evaporators, dispersion models for heat exchangers, experimental methods for the evaluation of heat exchanger performance, and thermal calculation algorithms for multi-stream heat exchangers and heat exchanger networks. Includes MATLAB codes to illustrate how the technologies and methods discussed can be easily applied and developed. Analyses a range of different models, applications, and case studies in order to reveal more advanced solutions for industrial applications. Maintains a strong focus on the fundamental theories and principles of the heat transfer performance of heat exchangers and their applications for complex flow arrangement.

Design, Fabrication, and Testing of Cross Flow Micro Heat Exchangers

Author : Chad Harris
Publisher :
ISBN 13 :
Total Pages : 276 pages
Book Rating : 4.:/5 (471 download)

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Book Synopsis Design, Fabrication, and Testing of Cross Flow Micro Heat Exchangers by : Chad Harris

Download or read book Design, Fabrication, and Testing of Cross Flow Micro Heat Exchangers written by Chad Harris and published by . This book was released on 2001 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Fundamentals and Applications of Supercritical Carbon Dioxide (SCO2) Based Power Cycles

Author : Klaus Brun
Publisher : Woodhead Publishing
ISBN 13 : 0081008058
Total Pages : 464 pages
Book Rating : 4.0/5 (81 download)

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Book Synopsis Fundamentals and Applications of Supercritical Carbon Dioxide (SCO2) Based Power Cycles by : Klaus Brun

Download or read book Fundamentals and Applications of Supercritical Carbon Dioxide (SCO2) Based Power Cycles written by Klaus Brun and published by Woodhead Publishing. This book was released on 2017-01-09 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals and Applications of Supercritical Carbon Dioxide (SCO2) Based Power Cycles aims to provide engineers and researchers with an authoritative overview of research and technology in this area. Part One introduces the technology and reviews the properties of SCO2 relevant to power cycles. Other sections of the book address components for SCO2 power cycles, such as turbomachinery expanders, compressors, recuperators, and design challenges, such as the need for high-temperature materials. Chapters on key applications, including waste heat, nuclear power, fossil energy, geothermal and concentrated solar power are also included. The final section addresses major international research programs. Readers will learn about the attractive features of SC02 power cycles, which include a lower capital cost potential than the traditional cycle, and the compounding performance benefits from a more efficient thermodynamic cycle on balance of plant requirements, fuel use, and emissions. Represents the first book to focus exclusively on SC02 power cycles Contains detailed coverage of cycle fundamentals, key components, and design challenges Addresses the wide range of applications of SC02 power cycles, from more efficient electricity generation, to ship propulsion

Scientific and Technical Aerospace Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 602 pages
Book Rating : 4.:/5 (3 download)

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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 1995 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Heat Transfer in Aerospace Applications

Author : Bengt Sundén
Publisher : Academic Press
ISBN 13 : 0128097612
Total Pages : 274 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Heat Transfer in Aerospace Applications by : Bengt Sundén

Download or read book Heat Transfer in Aerospace Applications written by Bengt Sundén and published by Academic Press. This book was released on 2016-10-19 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat Transfer in Aerospace Applications is the first book to provide an overall description of various heat transfer issues of relevance for aerospace applications. The book contains chapters relating to convection cooling, heat pipes, ablation, heat transfer at high velocity, low pressure and microgravity, aircraft heat exchangers, fuel cells, and cryogenic cooling systems. Chapters specific to low density heat transfer (4) and microgravity heat transfer (9) are newer subjects which have not been previously covered. The book takes a basic engineering approach by including correlations and examples that an engineer needs during the initial phases of vehicle design or to quickly analyze and solve a specific problem. Designed for mechanical, chemical, and aerospace engineers in research institutes, companies, and consulting firms, this book is an invaluable resource for the latest on aerospace heat transfer engineering and research. Provides an overall description of heat transfer issues of relevance for aerospace applications Discusses why thermal problems arise and introduces the various heat transfer modes Helps solve the problem of selecting and calculating the cooling system, the heat exchanger, and heat protection Features a collection of problems in which the methods presented in the book can be used to solve these problems