Exhaust Heat Recovery on Automotive Combustion Engines PDF Download
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Author: Andrea Gil Arbues
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Also in modern combustion engines, the maximal energetic efficiency is lower than 45%, which means that 55% of the supplied energy is lost and released to the environment. Automobile manufacturers and R&D partner suppliers are taking a special concern in investigating heat energy from exhaust gases, with the aim of recovering part of the heat by means of a Rankine Process and using it for energy cogeneration in the automobile. In the context of this Master Thesis, a new calculation software of the different thermodynamic states of the waste heat recovery system has to be programmed and used together with the rest of the available calculation tools. Another objective of this Master Thesis is the set up of valid simulation models for the different components of the heat recovery system based on measured testing data. This technical conditions and on the other hand the cycle requirements with the final objective of finding optimized states for each component. Finally, in order to reflect the behaviour of the system as a whole, the integration of the different simulated components of the waste heat recovery model would come in very useful. A complete simulation of the system would enable the estimation of optimization issues of the different parameters and operating points of the cycle.
Author: Andrea Gil Arbues
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Also in modern combustion engines, the maximal energetic efficiency is lower than 45%, which means that 55% of the supplied energy is lost and released to the environment. Automobile manufacturers and R&D partner suppliers are taking a special concern in investigating heat energy from exhaust gases, with the aim of recovering part of the heat by means of a Rankine Process and using it for energy cogeneration in the automobile. In the context of this Master Thesis, a new calculation software of the different thermodynamic states of the waste heat recovery system has to be programmed and used together with the rest of the available calculation tools. Another objective of this Master Thesis is the set up of valid simulation models for the different components of the heat recovery system based on measured testing data. This technical conditions and on the other hand the cycle requirements with the final objective of finding optimized states for each component. Finally, in order to reflect the behaviour of the system as a whole, the integration of the different simulated components of the waste heat recovery model would come in very useful. A complete simulation of the system would enable the estimation of optimization issues of the different parameters and operating points of the cycle.
Author: Thomas Matousek
Publisher: Logos Verlag Berlin GmbH
ISBN: 3832549560
Category : Science
Languages : en
Pages : 132
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Book Description
This dissertation deals with the experimental and simulative investigation of waste heat recovery from combustion engine exhaust gas in passenger car applications. The focus of the investigations lies on the thermodynamic cycle according to Rankine. The boundary conditions of combustion engines and the limitations of an automobile cause new operating conditions and system operating parameters for Rankine-systems, which will be discussed within this work. The system operating parameters were judged based on their potential to improve the efficiency of a running system, by setting the optimal values for each individual situation. Alternative circuit variants were investigated alongside of the basic configuration, which allowed additional heat input into the system and thereby increase the power output of the Rankine-system. Another operative influence on a waste heat recovery system that was analyzed was the importance of engine operating parameters. This on one hand lays groundwork and on the other hand displays the potentials of different system combinations. The knowledge gained during stationary operation is transferred to dynamic operation in the following. Cold start was chosen as the most important variant of dynamic operation. Results from measurements at starting temperatures down to -10C are presented. These include the first published measurements of temperature and power output for such scenarios. The basics of the behavior of a Rankine-system in cold start are extended by the impact of system operating parameters and circuit configurations. Possible synergies through different kinds of connection from the condenser to the coolant system were investigated as a completing facet of the holistic system view. The target of these investigations was to identify potentials for improvements in the cold start of the automobile by utilizing the heat that is available at the condenser.
Author: Ross P. Owen
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
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.
Author: Apostolos Pesiridis
Publisher: Nova Science Pub Incorporated
ISBN: 9781633214934
Category : Science
Languages : en
Pages : 269
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Book Description
Concerns for fuel economy and reduced emissions have turned the attention of automotive internal combustion engine manufacturers to the exhaust system and towards technological system development to account for the significant levels of potential energy that can be recovered. The present volume on Automotive Exhaust Emissions and Energy Recovery for both gasoline and diesel engines is therefore both timely and appropriate. Whereas diesel engines have been predominantly turbocharged, only a relatively small percentage of gasoline engines are similarly equipped, which has led to significant efforts by engine manufacturers in recent years to downsize and down-speed these engines. On the other hand, the relative focus in diesel engine development in terms of emissions and exhaust energy recovery has shifted toward devices other than the turbocharger for enhanced energy recovery and emissions control technologies in order to allow the diesel engines of the future to keep up with the dual-demand for very low emissions and increasing levels of fuel economy. The book focuses on the exhaust system and the technologies and methods used to reduce emissions and increase fuel economy by capitalising on the exhaust gas energy availability (either in the form of gas kinetic energy or as waste heat extracted from the exhaust gas). It is projected that in the short to medium term, advances in exhaust emissions and energy recovery technologies will lead the way in internal combustion engine development and pave the way towards increasing levels of engine hybridisation until fully electric vehicle technology can claim a level of maturity and corresponding market shares to turn the bulk of this focus away from the internal combustion engine. This book is aimed at engine research professionals in the industry and academia, but also towards students of powertrain engineering. The collection of articles in this book reviews the fundamentals of relevance, recent exhaust system technologies, details recent or on-going projects and uncovers future research directions and potentials.
Author: Dheeraj Kishor Johar
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659397929
Category :
Languages : en
Pages : 76
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Book Description
This book is a an outcome of successful experimental research on stationary internal combustion engine waste heat recovery for useful purposes like cooking. It shall help the readers develop a practical understanding on the concept of utilization of available waste heat from abundantly used various internal combustion engines - stationary or in motion. Key Features: # Visual Display - The book has quite a number of pictures of the experimental set-up used for an easy understanding of the environment. # Heat-Load and Time-Temperature Relationships: The impact has been discussed elaborately with the help of numerous graphs with actual readings. # Emission Studies: An added study on impact on HC and CO emissions due to addition of exhaust heat recovery system is discussed based on actual observations.
Author: Joaquin G. Ruiz
Publisher:
ISBN:
Category :
Languages : en
Pages : 72
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Book Description
Less than 30% of the energy in a gallon of gasoline reaches the wheels of a typical car; most of the remaining energy is lost as heat. Since most of the energy consumed by an internal combustion engine is wasted, capturing much of that wasted energy can provide a large increase in energy efficiency. For example, a typical engine producing 100 kilowatts of driveshaft power expels 68 kilowatts of heat energy through the radiator and 136 kilowatts through the exhaust. The possibilities of where and how to capture this lost energy are examined in this paper. The solution of recovering heat energy from the exhaust through the catalytic converter with a Stirling engine was examined due to its practicality. A novel approach for combining a Stirling engine and a catalytic converter that would be effective was designed. The power output and efficiency of the Stirling Engine were analyzed and it was found that the average overall car efficiency could be raised 7% with the new design.
Author: Ennio Macchi
Publisher: Woodhead Publishing
ISBN: 0081005113
Category : Technology & Engineering
Languages : en
Pages : 700
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Book Description
Organic Rankine Cycle (ORC) Power Systems: Technologies and Applications provides a systematic and detailed description of organic Rankine cycle technologies and the way they are increasingly of interest for cost-effective sustainable energy generation. Popular applications include cogeneration from biomass and electricity generation from geothermal reservoirs and concentrating solar power installations, as well as waste heat recovery from gas turbines, internal combustion engines and medium- and low-temperature industrial processes. With hundreds of ORC power systems already in operation and the market growing at a fast pace, this is an active and engaging area of scientific research and technical development. The book is structured in three main parts: (i) Introduction to ORC Power Systems, Design and Optimization, (ii) ORC Plant Components, and (iii) Fields of Application. - Provides a thorough introduction to ORC power systems - Contains detailed chapters on ORC plant components - Includes a section focusing on ORC design and optimization - Reviews key applications of ORC technologies, including cogeneration from biomass, electricity generation from geothermal reservoirs and concentrating solar power installations, waste heat recovery from gas turbines, internal combustion engines and medium- and low-temperature industrial processes - Various chapters are authored by well-known specialists from Academia and ORC manufacturers
Author: Dhananjay Kumar Srivastava
Publisher: Springer
ISBN: 9811075751
Category : Technology & Engineering
Languages : en
Pages : 346
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Book Description
This book discusses all aspects of advanced engine technologies, and describes the role of alternative fuels and solution-based modeling studies in meeting the increasingly higher standards of the automotive industry. By promoting research into more efficient and environment-friendly combustion technologies, it helps enable researchers to develop higher-power engines with lower fuel consumption, emissions, and noise levels. Over the course of 12 chapters, it covers research in areas such as homogeneous charge compression ignition (HCCI) combustion and control strategies, the use of alternative fuels and additives in combination with new combustion technology and novel approaches to recover the pumping loss in the spark ignition engine. The book will serve as a valuable resource for academic researchers and professional automotive engineers alike.
Author: World Intellectual Property Organization
Publisher: WIPO
ISBN: 9280521136
Category : Law
Languages : en
Pages : 6
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Book Description
This brochure explains how the IPC Green Inventory can give direct access to the latest patent information about technologies in a number of fields including alternative energy production, energy conservation, transportation, waste management, and agriculture and forestry
Author: M. Godet
Publisher: Elsevier
ISBN: 0080875823
Category : Technology & Engineering
Languages : en
Pages : 537
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Book Description
Vehicle Tribology was chosen as the topic for the 17th Leeds-Lyon Symposium, as it was decided to be a timely opportunity to bring together experts of many disciplines connected with problems of emissions, particulates and energy efficiency associated with the automobile engine. The volume contains 55 papers divided into eighteen sessions.
