Download or read book A Generalized Convective Heat Transfer Analysis of an Automotive Engine Exhaust Manifold shroud System Under Transient Start up Conditions written by Christopher Warren and published by . This book was released on 1978 with total page 400 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 SAE 2007 08 0078 Analysis on the Thermal Stress of Exhaust Manifold in a Heavy Duty Diesel Engine by Conjugate Heat Transfer Method written by Sang-Kyoo Lee and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The exhaust manifold in a heavy-duty diesel engine should be strictly designed on the thermal performance. The current study is to get the temperature distribution and heat transfer coefficients at the walls of the exhaust manifold using a conjugate heat transfer method with the consideration of exhaust gas flow and convective heat transfer. Thermal deformation of the exhaust manifold owing to the thermal stresses is investigated by coupling the temperature distribution into a structural analysis code.
Download or read book Technical Literature Abstracts written by Society of Automotive Engineers and published by . This book was released on 1994 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling and Analysis of Transient Vehicle Underhood Thermo Hydrodynamic Events Using Computational Fluid Dynamics and High Performance Computing written by C. Wang and published by . This book was released on 2003 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has explored the preliminary design of a Computational Fluid Dynamics (CFD) tool for the analysis of transient vehicle underhood thermo-hydrodynamic events using high performance computing platforms. The goal of this tool will be to extend the capabilities of an existing established CFD code, STAR-CD, allowing the car manufacturers to analyze the impact of transient operational events on the underhood thermal management by exploiting the computational efficiency of modern high performance computing systems. In particular, the project has focused on the CFD modeling of the radiator behavior during a specified transient. The 3-D radiator calculations were performed using STAR-CD, which can perform both steady-state and transient calculations, on the cluster computer available at ANL in the Nuclear Engineering Division. Specified transient boundary conditions, based on experimental data provided by Adapco and DaimlerChrysler were used. The possibility of using STAR-CD in a transient mode for the entire period of time analyzed has been compared with other strategies which involve the use of STAR-CD in a steady-state mode at specified time intervals, while transient heat transfer calculations would be performed for the rest of the time. The results of these calculations have been compared with the experimental data provided by Adapco/DaimlerChrysler and recommendations for future development of an optimal strategy for the CFD modeling of transient thermo-hydrodynamic events have been made. The results of this work open the way for the development of a CFD tool for the transient analysis of underhood thermo-hydrodynamic events, which will allow the integrated transient thermal analysis of the entire cooling system, including both the engine block and the radiator, on high performance computing systems.
Download or read book Heat and Mass Transfer in Gasoline and Diesel Engines written by Dudley Brian Spalding and published by Core/Mechanical. This book was released on 1989 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt: The editors explain that the classical formulae and techniques for predicting heat flow do not apply to the unique conditions found in reciprocating engines. They warn the reader--presumed to be aspiring designers of more efficient and less polluting engines--that although these papers, from every country where engineering is practiced, contain nearly all the available knowledge on the subject, no definitive answers emerge, no breakthroughs loom around the next equation. The topics include the transfer of engine heat and of external heat, numerical flow simulation, applications and devices, ignition and quenching, and measurement techniques. Annotation copyrighted by Book News, Inc., Portland, OR
Download or read book Convective Heat Transfer in Ducts The Integral Transform Approach written by C.A.C.. Santos and published by Editora E-papers. This book was released on 2001 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Index abstracts of SAE Technical Papers written by and published by . This book was released on 1993 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by Conference on Advanced Computational Methods in Heat Transfer and published by . This book was released on 1990 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Investigation of Steady State Heat Transfer Phenomenon in Pontiac G6 Vehicle Exhaust System written by Shiva K. Sainoju Korremla and published by ProQuest. This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SAE 2003 04 0042 Temperature and heat transfer measurements in the exhaust system of a diesel powered light duty vehicle written by P. A. Battiston and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental heat transfer study was performed on the exhaust system of a diesel-powered, light-duty vehicle. A methodology was developed to compute the steady-state heat-loss rate of a component based on the first law of thermodynamics for flowing multi-component reactive mixtures and on gas temperature and exhaust gas concentration measurements across the component. Most of the energy loss of the exhaust occurred in the turbocharger, as expected, followed by losses in the takedown section, the tailpipe, the closed-couple catalyst, and the underbody Lean-NOx-Trap (LNT), which had the energy loss. The heat transfer for the takedown-pipe and tailpipe were very well correlated with standard equations of the form Nusselt NO. a(Reynolds No.)b. The augmentation in heat loss rates at the takedown-pipe and tailpipe over that of a steady-state, fully developed, turbulent, pipe-flow was relatively modest in contrast to the findings of an earlier study. All the catalytic exothermic energy release came from the closed-coupled catalyst while the underfloor LNT relied solely on convective heating. The fuel step transient tests at constant speed indicated the importance of thermal storage of the metal walls during cold start.
Download or read book Introduction to Modeling and Control of Internal Combustion Engine Systems written by Lino Guzzella and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Internal combustion engines still have a potential for substantial improvements, particularly with regard to fuel efficiency and environmental compatibility. These goals can be achieved with help of control systems. Modeling and Control of Internal Combustion Engines (ICE) addresses these issues by offering an introduction to cost-effective model-based control system design for ICE. The primary emphasis is put on the ICE and its auxiliary devices. Mathematical models for these processes are developed in the text and selected feedforward and feedback control problems are discussed. The appendix contains a summary of the most important controller analysis and design methods, and a case study that analyzes a simplified idle-speed control problem. The book is written for students interested in the design of classical and novel ICE control systems.
Download or read book Modeling Analysis and Open loop Control of an Exhaust Heat Recovery System for Automotive Internal Combustion Engines written by Ross P. Owen and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: A zero-dimensional fluid and thermodynamic model of an engine, cooling system, and exhaust system was developed in order to simulate the operation of an advanced thermal management system. The model was calibrated with experimental data where available. The thermal management system modeled in this work employed waste heat recovery to reduce engine, coolant, and lubricating fluid warm-up times and fuel consumption following a cold-start. The model was used to develop a control strategy for two valves in the exhaust system which control the flow of exhaust through an exhaust-to-coolant heat exchanger. The objective of the controller was to minimize coolant warm-up time without violating any of the system constraints. A model-based open-loop controller was developed that was able to reduce warm-up time by nearly 35% on the FTP city drive cycle while respecting the limitations of the system.
Download or read book Study of Convective Heat Transfer Phenomena for Turbulent Pulsating Flows in Pipes written by Marco Simonetti and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Waste Energy Recovery represents a promising way to go further in fuel saving and greenhouse emissions control for Internal Combustion Engine applications. Although several technologies have been investigated in the past few years, the convective heat transfers, playing an important role in the energy exchanges at the engine exhaust, has not receive enough attention. Heat transfers, in such applications, occur in pulsating conditions because of the engine operating conditions, making thus the actual knowledge of the heat transfer phenomena limited and not exploitable. Nowadays there is not any model capable to predict convective heat transfers for pulsating flows. In this context, the present thesis addresses the purpose to study the convective heat transfer phenomena, by an experimental approach, occurring for turbulent pulsating flows in pipes. In the first part of this work, an experimental apparatus has been designed to reproduce an exhaust type pulsating flow in fully managed conditions, as well as, several measurement techniques have been developed to know the instantaneous profiles of air temperature and velocity. Many experiments have been performed in order to characterize the impact of the flow pulsation on the convective heat transfers. In the second part of this work, the experimental results have been analyzed with two different approaches: firstly, with a 1D assumption the time-average convective heat transfers has been computed, and the major mechanism responsible of the heat transfer enhancement has been pointed out. Furthermore, it has been possible to highlight the mathematical term representative of such mechanism, which should be accounted in future to define a more adapted numerical model for the heat transfer prediction. In a second phase with a 2D assumption, and, with an energy and a fluid-mechanic computational phase, the radial transport of thermal energy has been characterized for a pulsating flow.
Download or read book Diesel Engine Transient Operation written by Constantine D. Rakopoulos and published by Springer Science & Business Media. This book was released on 2009-03-10 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traditionally, the study of internal combustion engines operation has focused on the steady-state performance. However, the daily driving schedule of automotive and truck engines is inherently related to unsteady conditions. In fact, only a very small portion of a vehicle’s operating pattern is true steady-state, e. g. , when cruising on a motorway. Moreover, the most critical conditions encountered by industrial or marine engines are met during transients too. Unfortunately, the transient operation of turbocharged diesel engines has been associated with slow acceleration rate, hence poor driveability, and overshoot in particulate, gaseous and noise emissions. Despite the relatively large number of published papers, this very important subject has been treated in the past scarcely and only segmentally as regards reference books. Merely two chapters, one in the book Turbocharging the Internal Combustion Engine by N. Watson and M. S. Janota (McMillan Press, 1982) and another one written by D. E. Winterbone in the book The Thermodynamics and Gas Dynamics of Internal Combustion Engines, Vol. II edited by J. H. Horlock and D. E. Winterbone (Clarendon Press, 1986) are dedicated to transient operation. Both books, now out of print, were published a long time ago. Then, it seems reasonable to try to expand on these pioneering works, taking into account the recent technological advances and particularly the global concern about environmental pollution, which has intensified the research on transient (diesel) engine operation, typically through the Transient Cycles certification of new vehicles.
Download or read book Computer Simulation of Intake and Exhaust Manifold Flow and Heat Transfer written by and published by . This book was released on 1986 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transient Conjugated Convective Heat Transfer in Vertical Ducts written by Yeong-ley Tsay and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
