Download or read book Heat Transfer Enhancement Techniques With Special Attention to Passive Methods of Heat Transfer Enhancement written by Chakole M.M. and published by Anchor Academic Publishing. This book was released on 2016-06-02 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat exchangers are widely used in the industrial sector, e.g. in the refrigeration, air conditioning, petrochemical, and agricultural food industry. The high cost of energy and material has resulted in an increased effort aimed at producing high performance heat exchanger equipment. Passive methods of heat transfer enhancement do not need external power for enhancement. One of these kinds of passive technique is twisted tape inserts that enhance the performance of heat exchangers. Using multiple twisted tape inserts gives better enhancement than a single twisted tape insert. Using nanofluid gives also better thermal performance than water. Therefore, nanofluid along with twisted tape inserts was used in this study. For this study, different combinations of multiple twisted tape inserts were designed and fabricated. These different combinations contain dual, triple, and quadruple twisted tapes. Directions of twists are also varied which enables to study the effect of different swirl flow generators. Nanofluid is used with various volume concentrations of 0.07%, 0.14% and 0.21% in order to investigate the effect of nanoparticle concentration on heat transfer enhancement. Experimental investigation was carried out by having a constant heat flux condition and by varying the volume flow rate of flow from 2 to 10 lpm.
Download or read book Heat Transfer Enhancement Techniques With Special Attention to Passive Methods of Heat Transfer Enhancement written by Chakole M.M. and published by Anchor Academic Publishing. This book was released on 2016-08 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat exchangers are widely used in the industrial sector, e.g. in the refrigeration, air conditioning, petrochemical, and agricultural food industry. The high cost of energy and material has resulted in an increased effort aimed at producing high performance heat exchanger equipment. Passive methods of heat transfer enhancement do not need external power for enhancement. One of these kinds of passive technique is twisted tape inserts that enhance the performance of heat exchangers. Using multiple twisted tape inserts gives better enhancement than a single twisted tape insert. Using nanofluid gives also better thermal performance than water. Therefore, nanofluid along with twisted tape inserts was used in this study. For this study, different combinations of multiple twisted tape inserts were designed and fabricated. These different combinations contain dual, triple, and quadruple twisted tapes. Directions of twists are also varied which enables to study the effect of different swirl flow generators. Nanofluid is used with various volume concentrations of 0.07%, 0.14% and 0.21% in order to investigate the effect of nanoparticle concentration on heat transfer enhancement. Experimental investigation was carried out by having a constant heat flux condition and by varying the volume flow rate of flow from 2 to 10 lpm.
Download or read book Introduction to Enhanced Heat Transfer written by Sujoy Kumar Saha and published by Springer. This book was released on 2019-06-29 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Brief stands as a primer for heat transfer fundamentals in heat transfer enhancement devices, the definition of heat transfer area, passive and active enhancement techniques and their potential and benefits and commercial applications. It further examines techniques and modes of heat transfer like single-phase flow and two-phase flow, natural and forced convection, radiation heat transfer and convective mass transfer.
Download or read book Advances in Heat Transfer Enhancement written by Sujoy Kumar Saha and published by Springer. This book was released on 2016-04-23 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Brief addresses the phenomena of heat transfer enhancement. A companion edition in the SpringerBrief Subseries on Thermal Engineering and Applied Science to three other monographs including “Critical Heat Flux in Flow Boiling in Microchannels,” this volume is idea for professionals, researchers, and graduate students concerned with electronic cooling.
Download or read book Heat Transfer Enhancement Using Nanofluid Flow in Microchannels written by Davood Domairry Ganji and published by William Andrew. This book was released on 2016-06-11 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat Transfer Enhancement Using Nanofluid Flow in Microchannels: Simulation of Heat and Mass Transfer focuses on the numerical simulation of passive techniques, and also covers the applications of external forces on heat transfer enhancement of nanofluids in microchannels. Economic and environmental incentives have increased efforts to reduce energy consumption. Heat transfer enhancement, augmentation, or intensification are the terms that many scientists employ in their efforts in energy consumption reduction. These can be divided into (a) active techniques which require external forces such as magnetic force, and (b) passive techniques which do not require external forces, including geometry refinement and fluid additives. Gives readers the knowledge they need to be able to simulate nanofluids in a wide range of microchannels and optimise their heat transfer characteristics Contains real-life examples, mathematical procedures, numerical algorithms, and codes to allow readers to easily reproduce the methodologies covered, and to understand how they can be applied in practice Presents novel applications for heat exchange systems, such as entropy generation minimization and figures of merit, allowing readers to optimize the techniques they use Focuses on the numerical simulation of passive techniques, and also covers the applications of external forces on heat transfer enhancement of nanofluids in microchannels
Download or read book Inverse Heat Conduction and Heat Exchangers written by Suvanjan Bhattacharyya and published by BoD – Books on Demand. This book was released on 2020-12-02 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: A direct solution of the heat conduction equation with prescribed initial and boundary conditions yields temperature distribution inside a specimen. The direct solution is mathematically considered as a well-posed one because the solution exists, is unique, and continuously depends on input data. The estimation of unknown parameters from the measured temperature data is known as the inverse problem of heat conduction. An error in temperature measurement, thermal time lagging, thermocouple-cavity, or signal noise data makes stability a problem in the estimation of unknown parameters. The solution of the inverse problem can be obtained by employing the gradient or non-gradient based inverse algorithm. The aim of this book is to analyze the inverse problem and heat exchanger applications in the fields of aerospace, mechanical, applied mechanics, environment sciences, and engineering.
Download or read book Thermal Processing of Food Products by Steam and Hot Water written by Seid Mahdi Jafari and published by Woodhead Publishing. This book was released on 2022-11-10 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermal Processing of Food Products by Steam and Hot Water, a volume in the Unit Operations and Processing Equipment in the Food Industry series, explains the processing operations and equipment necessary for the thermal processing of different food products by applying steam and hot water. Sections cover an overview of thermal food processing, heat exchangers in the food processing industry, different thermal processing operations in the food industry, and applications of heat exchanges. All sections emphasize basic texts relating to experimental, theoretical, computational and/or the applications of food engineering principles and relevant processing equipment. Written by experts in the field of food engineering, in a simple and dynamic way, this book targets industrial engineers working in the field of food processing and within food factories to make them more familiar with the particular food processing operations and equipment. Thoroughly explores novel applications of thermal unit operations in the food industry Evaluates different alternatives for thermal processing operations Covers the application of heat exchangers in the food industry
Download or read book Emerging Topics in Heat Transfer written by Qiuwang Wang and published by WIT Press. This book was released on 2013-11-06 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presented in ten edited chapters this book encompasses important emerging topics in heat transfer equipment, particularly heat exchangers. The chapters have all been selected by invitation only. Advances in high temperature equipment and small scale devices continue to be important as the involved heat transfer and related phenomena are often complex in nature and different mechanisms like heat conduction, convection, turbulence, thermal radiation and phase change as well as chemical reactions may occur simultaneously. The book treats various operating problems, like fouling, and highlights applications in heat exchangers and gas turbine cooling. In engineering design and development, reliable and accurate computational methods are required to replace or complement expensive and time consuming experimental trial and error work. Tremendous advancements in knowledge and competence have been achieved during recent years due to improved computational solution methods for non-linear partial differential equations, turbulence modelling advancement and developments of computers and computing algorithms to achieve efficient and rapid simulations. The chapters of the book thoroughly present such advancement in a variety of applications.
Download or read book Heat Transfer Enhancement Techniques written by Ashwani Kumar and published by Wiley. This book was released on 2024-09-18 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Principles of Enhanced Heat Transfer written by Ralph L. Webb and published by Wiley-Interscience. This book was released on 1994-03-28 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: Indeed, today "second generation" enhancement concepts are routing in the automotive and refrigeration industries to obtain lower cost, smaller heat exchanger size, and higher energy efficiency in system operation. And the aerospace, process, and power generation industries are not far behind.
Download or read book Heat Exchange Engineering Compact heat exchangers techniques of size reduction written by E. A. Foumeny and published by Prentice Hall. This book was released on 1991 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second of a two-volume work designed to provide information on the design aspects of thermal systems and to review research and development on the improvement of design and performance. This book concentrates on shell and tube heat exchangers, particularly compact exchangers.
Download or read book Advances in Heat Transfer Augmentation Techniques in Single Phase Flows written by Varun Goel and published by CRC Press. This book was released on 2024-01-26 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: Augmentation of heat transfer is important in energy conservation and developing sustainable energy systems. This book provides the science necessary to understand the basics of heat transfer augmentation in single-phase engineering systems. It considers theory and practice including computational and experimental procedures, evaluation techniques for performance, and new trends. Several applications of augmentation methods like surface modification, introduction of vortex flow and impinging jets, opportunities of ultrasound and magnetic fields, pulsatile flows, heat exchangers, and nanofluids are provided. Details of basic phenomena and mechanisms are highlighted. Key features: Provides the fundamental science needed to understand and further develop heat transfer augmentation for future energy systems Give examples of how ultrasound and magnetic fields, vortex flow, impinging jets, surface modification and nanofluids can augment heat transfer Considers basic issues of computational and experimental methods for analysis, design, and evaluation of efficient and sustainable heat transfer It is an ideal reference text for graduate students and academic researchers working in the fields of mechanical, aerospace, industrial, manufacturing, and chemical engineering.
Download or read book Two Phase Heat Transfer Enhancement written by Sujoy Kumar Saha and published by Springer. This book was released on 2019-07-04 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Brief concerns heat transfer and pressure drop in heat transfer enhancement for boiling and condensation. The authors divide their topic into six areas: abrasive treatment and coatings, combined structured and porous surfaces, basic principles of boiling mechanism, vapor space condensation, convective vaporization, and forced condensation inside tubes. Within this framework, the book examines range of specific phenomena including abrasive treatment, open grooves, 3D cavities, etched surfaces, electroplating, pierced 3D cover sheets, attached wire and screen promoters, non-wetting coatings, oxide and ceramic coatings, porous surfaces, structured surfaces (integral roughness), combined structured and porous surfaces, composite surfaces, single-tube pool boiling tests, theoretical fundamentals like liquid superheat, effect of cavity shape and contact angle on superheat, entrapment of vapor in cavities, nucleation at a surface cavity, effect of dissolved gases, bubble departure diameter, bubble dynamics, boiling hysteresis and orientation effects, basic principles of boiling mechanism, visualization and mechanism of boiling in subsurface tunnels, and Chien and Webb parametric boiling studies.
Download or read book Nanofluid Flow in Porous Media written by Mohsen Sheikholeslami Kandelousi and published by BoD – Books on Demand. This book was released on 2020-08-19 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies of fluid flow and heat transfer in a porous medium have been the subject of continuous interest for the past several decades because of the wide range of applications, such as geothermal systems, drying technologies, production of thermal isolators, control of pollutant spread in groundwater, insulation of buildings, solar power collectors, design of nuclear reactors, and compact heat exchangers, etc. There are several models for simulating porous media such as the Darcy model, Non-Darcy model, and non-equilibrium model. In porous media applications, such as the environmental impact of buried nuclear heat-generating waste, chemical reactors, thermal energy transport/storage systems, the cooling of electronic devices, etc., a temperature discrepancy between the solid matrix and the saturating fluid has been observed and recognized.
Download or read book Advances in Heat Transfer written by and published by Academic Press. This book was released on 1998-05-18 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Heat Transfer
Download or read book Bulletin de L Institut International Du Froid written by and published by . This book was released on 2006 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy a Continuing Bibliography with Indexes written by and published by . This book was released on 1980 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
