Investigating the Effects of Reformed Fuel Blending in a Methane- Or N-Heptane-HCCI Engine Using a Multi-zone Model

Investigating the Effects of Reformed Fuel Blending in a Methane- Or N-Heptane-HCCI Engine Using a Multi-zone Model PDF Author: Paitoon Kongsereeparp
Publisher:
ISBN: 9780768016369
Category : Engines
Languages : en
Pages :

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Investigating the Effects of Reformed Fuel Blending in a Methane- Or N-Heptane-HCCI Engine Using a Multi-zone Model

Investigating the Effects of Reformed Fuel Blending in a Methane- Or N-Heptane-HCCI Engine Using a Multi-zone Model PDF Author: Paitoon Kongsereeparp
Publisher:
ISBN: 9780768016369
Category : Engines
Languages : en
Pages :

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Homogeneous Charge Compression Ignition Engines, 2007

Homogeneous Charge Compression Ignition Engines, 2007 PDF Author:
Publisher:
ISBN:
Category : Internal combustion engines
Languages : en
Pages : 592

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Chemical Kinetics and Mechanism

Chemical Kinetics and Mechanism PDF Author: M Mortimer
Publisher: Royal Society of Chemistry
ISBN: 1847557805
Category : Science
Languages : en
Pages : 266

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Book Description
Chemical Kinetics and Mechanism considers the role of rate of reaction. It begins by introducing chemical kinetics and the analysis of reaction mechanism, from basic well-established concepts to leading edge research. Organic reaction mechanisms are then discussed, encompassing curly arrows, nucleophilic substitution and E1 and E2 elimination reactions. The book concludes with a Case Study on Zeolites, which examines their structure and internal dimensions in relation to their behaviour as molecular sieves and catalysts. The accompanying CD-ROM contains the "Kinetics Toolkit", a graph-plotting application designed for manipulation and analysis of kinetic data, which is built into many of the examples, questions and exercises in the text. There are also interactive activities illustrating reaction mechanisms. The Molecular World series provides an integrated introduction to all branches of chemistry for both students wishing to specialise and those wishing to gain a broad understanding of chemistry and its relevance to the everyday world and to other areas of science. The books, with their Case Studies and accompanying multi-media interactive CD-ROMs, will also provide valuable resource material for teachers and lecturers. (The CD-ROMs are designed for use on a PC running Windows 95, 98, ME or 2000.)

An experimental investigation on the emission characteristics of HCCI engine operation using N-Heptane

An experimental investigation on the emission characteristics of HCCI engine operation using N-Heptane PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 17

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Integrated Gasification Combined Cycle (IGCC) Technologies

Integrated Gasification Combined Cycle (IGCC) Technologies PDF Author: Ting Wang
Publisher: Woodhead Publishing
ISBN: 0081001851
Category : Technology & Engineering
Languages : en
Pages : 929

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Book Description
Integrated Gasification Combined Cycle (IGCC) Technologies discusses this innovative power generation technology that combines modern coal gasification technology with both gas turbine and steam turbine power generation, an important emerging technology which has the potential to significantly improve the efficiencies and emissions of coal power plants. The advantages of this technology over conventional pulverized coal power plants include fuel flexibility, greater efficiencies, and very low pollutant emissions. The book reviews the current status and future developments of key technologies involved in IGCC plants and how they can be integrated to maximize efficiency and reduce the cost of electricity generation in a carbon-constrained world. The first part of this book introduces the principles of IGCC systems and the fuel types for use in IGCC systems. The second part covers syngas production within IGCC systems. The third part looks at syngas cleaning, the separation of CO2 and hydrogen enrichment, with final sections describing the gas turbine combined cycle and presenting several case studies of existing IGCC plants. - Provides an in-depth, multi-contributor overview of integrated gasification combined cycle technologies - Reviews the current status and future developments of key technologies involved in IGCC plants - Provides several case studies of existing IGCC plants around the world

HCCI and CAI Engines for the Automotive Industry

HCCI and CAI Engines for the Automotive Industry PDF Author: Hua Zhao
Publisher: CRC Press
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 562

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Book Description
Homogeneous charge compression ignition (HCCI)/controlled auto-ignition (CAI) has emerged as one of the most promising engine technologies with the potential to combine fuel efficiency and improved emissions performance, offering reduced nitrous oxides and particulate matter alongside efficiency comparable with modern diesel engines. Despite the considerable advantages, its operational range is rather limited and controlling the combustion (timing of ignition and rate of energy release) is still an area of on-going research. Commercial applications are, however, close to reality. HCCI a.

Piston-Liner Crevice Geometry Effect on HCCI Combustion by Multi-Zone Analysis

Piston-Liner Crevice Geometry Effect on HCCI Combustion by Multi-Zone Analysis PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 12

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Book Description
A multi-zone model has been developed that accurately predicts HCCI combustion and emissions. The multizone methodology is based on the observation that turbulence does not play a direct role on HCCI combustion. Instead, chemical kinetics dominates the process, with hotter zones reacting first, and then colder zones reacting in rapid succession. Here, the multi-zone model has been applied to analyze the effect of piston crevice geometry on HCCI combustion and emissions. Three different pistons of varying crevice size were analyzed. Crevice sizes were 0.26, 1.3 and 2.1 mm, while a constant compression ratio was maintained (17:1). The results show that the multi-zone model can predict pressure traces and heat release rates with good accuracy. Combustion efficiency is also predicted with good accuracy for all cases, with a maximum difference of 5% between experimental and numerical results. Carbon monoxide emissions are underpredicted, but the results are better than those obtained in previous publications. The improvement is attributed to the use of a 40-zone model, while previous publications used a 10-zone model. Hydrocarbon emissions are well predicted. For cylinders with wide crevices (1.3 and 2.1 mm), HC emissions do not decrease monotonically as the relative air/fuel ratio ([lambda]) increases. Instead, maximum HC emissions are obtained for an intermediate value of [lambda]. The model predicts this relative air/fuel ratio for maximum HC emissions with very good accuracy. The results show that the multi-zone model can successfully predict the effect of crevice geometry on HCCI combustion, and therefore it has applicability to the design of HCCI engines with optimum characteristics for high efficiency, low emissions and low peak cylinder pressure.

Fundamentals of Combustion Processes

Fundamentals of Combustion Processes PDF Author: Sara McAllister
Publisher: Springer Science & Business Media
ISBN: 1441979433
Category : Science
Languages : en
Pages : 315

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Book Description
Fundamentals of Combustion Processes is designed as a textbook for an upper-division undergraduate and graduate level combustion course in mechanical engineering. The authors focus on the fundamental theory of combustion and provide a simplified discussion of basic combustion parameters and processes such as thermodynamics, chemical kinetics, ignition, diffusion and pre-mixed flames. The text includes exploration of applications, example exercises, suggested homework problems and videos of laboratory demonstrations

Investigating the Effects of Direct Fuel Injection During the Negative Value Overlap Period in a Gasoline Fueled HCCI Engine

Investigating the Effects of Direct Fuel Injection During the Negative Value Overlap Period in a Gasoline Fueled HCCI Engine PDF Author: John O. Waldman
Publisher:
ISBN:
Category :
Languages : en
Pages : 342

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Natural Gas Engines

Natural Gas Engines PDF Author: Kalyan Kumar Srinivasan
Publisher: Springer
ISBN: 9811333076
Category : Technology & Engineering
Languages : en
Pages : 428

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Book Description
This book covers the various advanced reciprocating combustion engine technologies that utilize natural gas and alternative fuels for transportation and power generation applications. It is divided into three major sections consisting of both fundamental and applied technologies to identify (but not limited to) clean, high-efficiency opportunities with natural gas fueling that have been developed through experimental protocols, numerical and high-performance computational simulations, and zero-dimensional, multizone combustion simulations. Particular emphasis is placed on statutes to monitor fine particulate emissions from tailpipe of engines operating on natural gas and alternative fuels.