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Author: Chakole M.M. Publisher: Anchor Academic Publishing ISBN: 3960675496 Category : Technology & Engineering Languages : en Pages : 99
Book Description
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.
Author: Chakole M.M. Publisher: Anchor Academic Publishing ISBN: 3960675496 Category : Technology & Engineering Languages : en Pages : 99
Book Description
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.
Author: Davood Domairry Ganji Publisher: William Andrew ISBN: 032343178X Category : Science Languages : en Pages : 378
Book Description
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
Author: Sujoy Kumar Saha Publisher: Springer ISBN: 3319294806 Category : Science Languages : en Pages : 128
Book Description
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.
Author: Suvanjan Bhattacharyya Publisher: BoD – Books on Demand ISBN: 1789851777 Category : Science Languages : en Pages : 204
Book Description
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.
Author: Seid Mahdi Jafari Publisher: Woodhead Publishing ISBN: 0128197064 Category : Technology & Engineering Languages : en Pages : 356
Book Description
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
Author: Ralph L. Webb Publisher: Wiley-Interscience ISBN: Category : Science Languages : en Pages : 584
Book Description
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.
Author: Mohsen Sheikholeslami Kandelousi Publisher: BoD – Books on Demand ISBN: 1789238374 Category : Science Languages : en Pages : 246
Book Description
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.
Author: E. A. Foumeny Publisher: Prentice Hall ISBN: 9780133823912 Category : Technology & Engineering Languages : en Pages : 444
Book Description
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.
Author: David Reay Publisher: Butterworth-Heinemann ISBN: 0080983057 Category : Technology & Engineering Languages : en Pages : 624
Book Description
Process Intensification: Engineering for Efficiency, Sustainability and Flexibility is the first book to provide a practical working guide to understanding process intensification (PI) and developing successful PI solutions and applications in chemical process, civil, environmental, energy, pharmaceutical, biological, and biochemical systems. Process intensification is a chemical and process design approach that leads to substantially smaller, cleaner, safer, and more energy efficient process technology. It improves process flexibility, product quality, speed to market and inherent safety, with a reduced environmental footprint. This book represents a valuable resource for engineers working with leading-edge process technologies, and those involved research and development of chemical, process, environmental, pharmaceutical, and bioscience systems. - No other reference covers both the technology and application of PI, addressing fundamentals, industry applications, and including a development and implementation guide - Covers hot and high growth topics, including emission prevention, sustainable design, and pinch analysis - World-class authors: Colin Ramshaw pioneered PI at ICI and is widely credited as the father of the technology
Author: Chakole M.M.
Author: Chakole M.M.
Author: Davood Domairry Ganji
Author: Sujoy Kumar Saha
Author: Suvanjan Bhattacharyya
Author: Seid Mahdi Jafari
Author: Ralph L. Webb
Author: Mohsen Sheikholeslami Kandelousi
Author: 
Author: E. A. Foumeny
Author: David Reay