Anna University, Chennai
B.E/B.Tech Degree Examination
Third Semester
Automobile Engineering (AUTO)
AT6301 Automotive Engines
Lecture Notes
Regulation 2013
University : Anna University, Chennai
Year : Second Year
Department : Automobile Engineering (AUTO)
Semester : 03 (III)
Subject Code : AT6301
Subject Name : Automotive Engines
Regulation : 2013
Attachment Type : PDF
Description : AT6301 - Automotive Engines - Lecture Notes
UNIT-I
BASIC THEORY
INTRODUCTION
Definition of ‘Engine’
An engine is a device, which transforms one form of energy into another form. Normally, most of the engines convert thermal energy into mechanical work and therefore they are called ‘heat engines’.
Heat engines can be broadly classified into two categories:
i. Internal Combustion Engines (IC Engines)
ii. External Combustion Engines (EC Engines)
External Combustion and Internal Combustion Engines
External combustion engines are those in which combustion takes place outside the engine whereas in internal combustion engines combustion takes place within the engine.
For example, in a steam engine or a steam turbine, the heat generated due to the combustion of fuel is employed to generate high pressure steam, which is used as the working fluid in a reciprocating engine or a turbine. In case of gasoline or diesel engines, the products of combustion generated by the combustion of fuel and air within the cylinder form the working fluid.
Application of IC and EC Engines
IC Engines
1. GASOLINE ENGINE –AUTOMOTIVE, MARINE AIRCRAFT
2. DIESEL ENGINE - AUTOMOTIVE, MARINE,POWER,LOCOMATIVE
3. GAS ENGINES –INDUSTRIAL POWER
EC Engines
1. STEAM ENGINES – LOCOMOTIVES,MARINE
2. STEAM TURBINE – POWER,LARGE MARINE
Attachment :
AT6301_uw.pdf (Size: 1.24 MB / Downloads: 6,932)
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