Download or read book Investigation the Effect of Cationic Surfactant on Heat Transfer Performance in Heat Exchanger written by Abdul Haffizh Zulkifli and published by . This book was released on 2013 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drag reducing surfactant fluids are known to suffer from heat transfer capabilities in recirculating system. In this experiment, the main purpose is to investigate the effect of cationic surfactant flow parameter on heat transfer performance in heat exchanger. In the present research, Cetyltrimethylammonium bromide (CTAB) was tested with concentration level of 500 ppm, 1000 ppm and 1500 ppm at 50oC, 60 oC and 70 oC temperature for each concentration level. The experimental result showed that, temperature and concentration effect the heat transfer performance of the CTAB surfactant. At concentration of 1500 ppm, highest heat transfer obtained at temperature of 50oC. The same results were obtained at temperature of 60oC and 70oC with corresponding concentration value of 500 ppm and 1000 ppm. The results also showed that the heat transfer rate with existing of UV light upon cationic surfactant flow enhance the heat transfer rate with 11% increase at 50°C with 1500 ppm, 6% increase at 60°C with 500 ppm and 5% increase at 70°C 1000.
Download or read book Hybrid Nanofluids for Convection Heat Transfer written by Hafiz Muhammad Ali and published by Academic Press. This book was released on 2020-05-15 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybrid Nanofluids for Convection Heat Transfer discusses how to maximize heat transfer rates with the addition of nanoparticles into conventional heat transfer fluids. The book addresses definitions, preparation techniques, thermophysical properties and heat transfer characteristics with mathematical models, performance-affecting factors, and core applications with implementation challenges of hybrid nanofluids. The work adopts mathematical models and schematic diagrams in review of available experimental methods. It enables readers to create new techniques, resolve existing research problems, and ultimately to implement hybrid nanofluids in convection heat transfer applications. - Provides key heat transfer performance and thermophysical characteristics of hybrid nanofluids - Reviews parameter selection and property measurement techniques for thermal performance calibration - Explores the use of predictive mathematical techniques for experimental properties
Download or read book Investigation of the Effects of Surfactant Concentration on the Boiling Curve of Water written by Darci Janelle Reed and published by . This book was released on 2015 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Boiling is a widely used heat transfer process in industry that allows for high heat transfer with a small temperature gradient. In this study the effects of two homologous series of surfactants (trimethylammonium bromide (TAB) and methylglucamine (MEGA)) on the boiling curve of water were explored. Heat transfer vs. temperature plots were obtained for five surfactants for various concentrations under the cricical micelle concentration (CMC). Plots of temperature vs concentration for specific heat fluxes showed the lowering of the superheat that improves heat transfer when surfactants were added, resulting in an overall left shift of the boiling curve. The shifting that occurs at low concentrations of surfactant seem correlated with the diffusion coefficients of the different surfactants. The large shifting that occurs at larger concentrations is correlated with the hydrophobic tail length of each of the surfactants. This supports the hypothesis that the lowering of the dynamic surface tension, which correlates with the diffusion coefficient, is responsible for part of the lowering of the superheat. The fact that the larger shifting is correlated with the hydrophobic tail length supports the hypothesis that part of the shifting occurs due to the surfactants adsorbing onto the surface, making it more hydrophobic, increasing the contact angle, and decreasing the nucleation energy. The results of this work add to the understanding of the effects surfactants have on the boiling of water and give engineers more tools to adjust heat.
Download or read book Turbulent Drag Reduction by Surfactant Additives written by Feng-Chen Li and published by John Wiley & Sons. This book was released on 2012-01-10 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbulent drag reduction by additives has long been a hot research topic. This phenomenon is inherently associated with multifold expertise. Solutions of drag-reducing additives are usually viscoelastic fluids having complicated rheological properties. Exploring the characteristics of drag-reduced turbulent flows calls for uniquely designed experimental and numerical simulation techniques and elaborate theoretical considerations. Pertinently understanding the turbulent drag reduction mechanism necessities mastering the fundamentals of turbulence and establishing a proper relationship between turbulence and the rheological properties induced by additives. Promoting the applications of the drag reduction phenomenon requires the knowledge from different fields such as chemical engineering, mechanical engineering, municipal engineering, and so on. This book gives a thorough elucidation of the turbulence characteristics and rheological behaviors, theories, special techniques and application issues for drag-reducing flows by surfactant additives based on the state-of-the-art of scientific research results through the latest experimental studies, numerical simulations and theoretical analyses. Covers turbulent drag reduction, heat transfer reduction, complex rheology and the real-world applications of drag reduction Introduces advanced testing techniques, such as PIV, LDA, and their applications in current experiments, illustrated with multiple diagrams and equations Real-world examples of the topic’s increasingly important industrial applications enable readers to implement cost- and energy-saving measures Explains the tools before presenting the research results, to give readers coverage of the subject from both theoretical and experimental viewpoints Consolidates interdisciplinary information on turbulent drag reduction by additives Turbulent Drag Reduction by Surfactant Additives is geared for researchers, graduate students, and engineers in the fields of Fluid Mechanics, Mechanical Engineering, Turbulence, Chemical Engineering, Municipal Engineering. Researchers and practitioners involved in the fields of Flow Control, Chemistry, Computational Fluid Dynamics, Experimental Fluid Dynamics, and Rheology will also find this book to be a much-needed reference on the topic.
Download or read book CRC Handbook of Thermal Engineering written by Raj P. Chhabra and published by CRC Press. This book was released on 2017-11-08 with total page 1649 pages. Available in PDF, EPUB and Kindle. Book excerpt: The CRC Handbook of Thermal Engineering, Second Edition, is a fully updated version of this respected reference work, with chapters written by leading experts. Its first part covers basic concepts, equations and principles of thermodynamics, heat transfer, and fluid dynamics. Following that is detailed coverage of major application areas, such as bioengineering, energy-efficient building systems, traditional and renewable energy sources, food processing, and aerospace heat transfer topics. The latest numerical and computational tools, microscale and nanoscale engineering, and new complex-structured materials are also presented. Designed for easy reference, this new edition is a must-have volume for engineers and researchers around the globe.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1991 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scale Formation in Heat Exchangers written by Mohammad Varnaseri and published by Springer Nature. This book was released on with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis seminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac tivity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volume were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 23 (thesis year 1978) a total of 10,148 theses titles from 27 Canadian and 220 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work. While Volume 23 reports these submitted in 1978, on occasion, certain universities do report theses submitted in previous years but not reported at the time.
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1994 with total page 1036 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the ASME Fluids Engineering Division written by and published by . This book was released on 2003 with total page 866 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Developments in Non Newtonian Flows and Industrial Applications 1991 written by American Society of Mechanical Engineers. Winter Annual Meeting and published by . This book was released on 1991 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Investigation on Performances of Trisection Helical Baffled Heat Exchangers for Oil water water Heat Transfer written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report 1989 90 written by New Brunswick. Department of Transportation and published by . This book was released on 1991 with total page 1272 pages. Available in PDF, EPUB and Kindle. Book excerpt: General activity review of associated branches and agencies to the Department which includes corporate securities registrations, a list of tenders received, and general financial data. Branches and agencies reviewed are responsible for motor vehicle activity, highway construction, traffic engineering, telecommunications and public utilities.
Download or read book Recueil factice d articles de presse et de documents sur le livre du centenaire de la Revue des Deux mondes written by and published by . This book was released on with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2001 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Developments in the Flow of Complex Fluids in Tubes written by Dennis A. Siginer and published by Springer. This book was released on 2014-11-11 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is dedicated to the tube flow of viscoelastic fluids and Newtonian single and multi-phase particle-laden fluids. This succinct volume collects the most recent analytical developments and experimental findings, in particular in predicting the secondary field, highlighting the historical developments which led to the progress made. This book brings a fresh and unique perspective and covers and interprets efforts to model laminar flow of viscoelastic fluids in tubes and laminar and turbulent flow of single and multi-phase particle-laden flow of linear fluids in the light of the latest findings.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1970 with total page 1338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
