IC4007 Advanced Combustion Concepts in Engines Syllabus:

IC4007 Advanced Combustion Concepts in Engines Syllabus – Anna University PG Syllabus Regulation 2021

COURSE OBJECTIVES

 To provide fundamental knowledge about HCCI and its background
 To provide insight about Gasoline and Diesel LTC methods
 To impart knowledge on LTC control methods and its significance
 To provide insight about the fuel requirements for LTC and its effect
 To impart knowledge on LTC combustion operation with alternative fuels

UNIT I LOW TEMPERATURE COMBUSTION ENGINE FUNDAMENTALS

Introduction, low temperature combustion (LTC) Fundamentals – Background of LTC, Principle, Benefits, Challenges, Need for control.

UNIT II GASOLINE AND DIESEL LTC ENGINES

Conventional Gasoline Combustion, Effects of EGR, Techniques to HCCI operation in gasoline engines, Conventional Diesel Combustion, Overview of diesel HCCI engines, Techniques –Early Injection, Multiple injections, Narrow angle direct injection (NADI™) concept, Modulated kinetics (MK)combustion – First and Second generation of MK combustion, emission, performance improvement.

UNIT III LOW TEMPERATURE COMBUSTION CONTROL

Control Methods, Combustion timing sensors, HCCI/SI switching, Transition between operating modes (HCCI-SI-HCCI), Fuel effects in HCCI – gasoline, diesel, auto-ignition requirement, combustion phasing, Influence of equivalence ratio, auto-ignition timing, combustion duration, auto-ignition temperature and auto-ignition pressure, Combustion limits, IMEP and indicated efficiency, other approaches to characterizing fuel performance in HCCI engines.

UNIT IV ADVANCED COMBUSTION FUEL REQUIREMENTS

Introduction, Background, Diesel fuel HCCI, HCCI fuel ignition quality, Gasoline HCCI, HCCI fuel specification, Fundamental fuel factors.

UNIT V LTC WITH ALTERNATIVE FUELS

Natural gas HCCI engines, CNG HCCI engines, methane/n- butane/air mixtures. DME HCCI engine – chemical reaction model, Combustion completeness, Combustion control system, Method of combining DME and other fuels, Unmixed-ness of DME/air mixture

COURSE OUTCOMES:

The students will be able to
 Understand the fundamentals of HCCI combustion, benefits and challenges
 Learn the methods followed to achieve HCCI in Gasoline and Diesel engines
 Learn the HCCI combustion control methods and its significance
 Understand the fuel requirements for HCCI operation and its role on complete load range operation
 Learn the HCCI operation with alternative fuels and its comparison over conventional fuels

TEXT BOOKS:

1. Hua Zhao “HCCI and CAI Engines for automotive industry” Wood Head Publishing in Mechanical Engineering, 2007.
2. Pundir B.P., Engine Combustion and Emission, 2011, Narosa Publishing House.

REFERENCES:

1. Ganesan, V, Internal Combustion Engines, Tata McGraw Hill Book Co., 2003
2. John B Heywood, “Internal Combustion Engines Fundamentals”, McGraw Hill International Edition, 1988.
3. Pundir B.P. I.C. Engines Combustion and Emission, 2010, Narosa Publishing House.
4. HCCI Diesel Engines – Nptel – https://nptel.ac.in/courses/112104033/34
5. HCCI and CAI Engines – Nptel – https://nptel.ac.in/courses/112104033/33