Low-temperature Combustion in a Small-bore High-speed Direct Injection Optically Accessible Diesel Engine PDF Download
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Author: Tiegang Fang Publisher: ISBN: 9780549095378 Category : Automobiles Languages : en Pages : 448
Book Description
Small-bore High Speed Direct-Injection (HSDI) diesel engines are becoming attractive candidates for light duty vehicles. However, exhaust emissions must be significantly reduced to meet the increasingly restrictive emission standards.
Author: Tiegang Fang Publisher: ISBN: 9780549095378 Category : Automobiles Languages : en Pages : 448
Book Description
Small-bore High Speed Direct-Injection (HSDI) diesel engines are becoming attractive candidates for light duty vehicles. However, exhaust emissions must be significantly reduced to meet the increasingly restrictive emission standards.
Author: Alain A. Vertes Publisher: John Wiley & Sons ISBN: 1119965497 Category : Science Languages : en Pages : 520
Book Description
Focusing on the key challenges that still impede the realization of the billion-ton renewable fuels vision, this book integrates technological development and business development rationales to highlight the key technological.developments that are necessary to industrialize biofuels on a global scale. Technological issues addressed in this work include fermentation and downstream processing technologies, as compared to current industrial practice and process economics. Business issues that provide the lens through which the technological review is performed span the entire biofuel value chain, from financial mechanisms to fund biotechnology start-ups in the biofuel arena up to large green field manufacturing projects, to raw material farming, collection and transport to the bioconversion plant, manufacturing, product recovery, storage, and transport to the point of sale. Emphasis has been placed throughout the book on providing a global view that takes into account the intrinsic characteristics of various biofuels markets from Brazil, the EU, the US, or Japan, to emerging economies as agricultural development and biofuel development appear undissociably linked.
Author: Hatim Machrafi Publisher: Bentham Science Publishers ISBN: 1608052850 Category : Technology & Engineering Languages : en Pages : 388
Book Description
"Energy is indispensable in present society. All depend on a constant and reliable source of energy, whether it be for transport, industrial or home applications. The use of such energy sources can present some inconveniences, such as source depletion, pol"
Author: T. Rajmohan Publisher: Springer Nature ISBN: 9811562679 Category : Technology & Engineering Languages : en Pages : 660
Book Description
This book comprises selected papers from the Fourth International Conference on Materials and Manufacturing Engineering (ICMME 2019). The contents focus on the latest developments in the synthesis and characterization of new materials, and highlights the challenges involved in the manufacturing and machinability of different materials. Advanced and cost-effective manufacturing processes and their applications are also discussed in the book. In addition, it covers topics like robotics, fluid dynamics, design and development, and different optimization techniques. The contents of this book will be beneficial to students, researchers, and industry professionals.
Author: Publisher: ISBN: Category : Languages : en Pages : 5
Book Description
In support of the Partnership for a New Generation Vehicle (PNGV) emissions and fuel economy goals, a small-bore, high-speed, direct-injection (HSDI) diesel facility in which to conduct research into the physics of the combustion process relevant to these engines has been developed. The characteristics of this facility are described, and the motivation for selecting these characteristics and their relation to high efficiency, low-emission HSDI engine technology is discussed.
Author: Publisher: ISBN: Category : Languages : en Pages : 1
Book Description
Methods of producing non-sooting, low flame temperature diesel combustion were investigated in an optically-accessible, quiescent constant-volume combustion vessel under mixing-controlled diesel combustion conditions. Combustion and soot processes of single, isolated fuel jets were studied after auto-ignition and transient premixed combustion and while the injector was fully-open (i.e. during the mixing-controlled phase of heat release for diesel combustion). The investigation showed that small injector tip orifices could be used to produce non-sooting and low flame temperature combustion simultaneously. The use of small orifices was shown to enable non-sooting and low flame temperature combustion in two different ways as summarized below. A more detailed description of the experimental methods and results is provided in Ref. [1-3]. First, using an injector tip with a 50 micron orifice and ambient oxygen concentrations as low as 10% (simulating the use of extensive EGR), a fuel jet was non-sooting at typical diesel ambient temperatures (1000 K). Second, using the same injector tip at a reduced ambient gas temperature (850 K), but with 21% oxygen, it was shown that non-sooting, mixing-controlled combustion occurred at the lift-off length in a fuel-air mixture with a cross-sectional average equivalence ratio of approximately 0.6-suggesting that the quasi-steady combustion was fuel-lean and thereby avoided the formation of a diffusion flame. The adiabatic flame temperature with reduced ambient oxygen concentration or fuel-lean combustion was approximately 2000 K, compared to typical diesel flame temperatures that exceed 2600 K. The 50 micron orifice results above were obtained using a No. 2 diesel fuel. However, using an oxygenated fuel (20 wt% oxygen), the investigation showed that the same low temperature combustion, either with reduced ambient oxygen concentration or fuel-lean combustion, was realized with a 100 micron orifice. Although these single, isolated jets do not have jet-jet interactions that would occur in realistic engines, the results are useful for understanding limiting-case behavior of single-jet mixing and combustion during an injection event. The non-sooting and low flame temperature mixing-controlled combustion realized using small orifice tips suggests that the use of small orifices offers the potential for a simultaneous soot and NOx reduction in an engine, much like diesel HCCI combustion. However, further research is needed to determine whether these methods could be successfully implemented in real engines.
Author: Tiegang Fang
Author: Tiegang Fang
Author: William Sean Mathews
Author: Jia Xi Zhao
Author: Alain A. Vertes
Author: Hatim Machrafi
Author: T. Rajmohan
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Author: Carl-Anders Hergart
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