SNS COLLEGE OF ENGINEERING Coimbatore-107 Subject: AICE

Slides:

Advertisements

Similar presentations

Physical principles related to operation

Advertisements

Engine Operating Principles

Four Stroke Gas Engines

EGR 334 Thermodynamics Chapter 9: Sections 3-4 Lecture 32: Gas Power Systems: The Diesel Cycle Quiz Today?

ME240/107S: Engine Dissection

Engine Fundamentals TRF 210.

Engine Terminology Engine Measurement Lesson 8 March 2008.

Engine Maintenance Chapter 1 What Makes the Boat Go.

How Many Small Engines do you have at home? Do you understand how they work and what makes them run? This presentation is from Virginia Tech and has not.

Piston Assembly Gas and Inertia forces are applied. Gas and Inertia forces are applied. Both of these forces are variable in Both of these forces are variable.

Small Engine Theory What is the purpose of a Small Engine?

Two Stroke The biggest diesel engine in operation, work on two stroke principle. It is called two stroke because it takes two strokes of piston to complete.

HOW THE ENGINE WORKS RK.

Applied Math Compression Ratio.

Four Stroke Cycle Engine

INTERNAL COMBUSTION ENGINES

Internal Combustion Engines – The Diesel

Engines Internal combustion engine needs

4 Stroke engine Stroke is defined as the movement of the piston from the 'bottom dead center' (BDC) to the 'top dead center' (TDC) or the other way round,

4 Cylinder Engine TDC (Top Dead Center) BDC (Bottom Dead Center) Piston Cylinder.

Ship Propulsion Systems STEAMDIESELOTHERConventionalNuclear Slow Speed Medium Speed Gas Turbine Combined Cycle DIESEL PROPULSION.

Diesel Engine The only difference between diesel engine and a four-stroke gasoline engine is: No sparkplug on Diesel engine. Has a higher compression ratio.

Bike Basics. What will we see today? A typical spec sheet Engine – What is it? Types of Engines – Two Stroke – Four Stroke – Wankel/Rotary Displacement.

SIX STROKE ENGINE.

Introduction Diesel Engine.

Gasoline Engines Operation Energy and Power Energy is used to produce power. Chemical energy is converted to heat energy by burning fuel at a controlled.

Introduction to the Engine Chapter 15 Page 181. Terms Stroke- Total movement of piston from it’s upper-most point to it’s bottom-most movement. Stroke-

CHAPTER 3. Internal combustion engines convert potential chemical energy in the form of heat derived from a fuel into mechanical energy. Approximately.

Prepared by : Pavan Narkhede

“DIESEL ENGINE” A SUMMER TRAINING PRESENTATION ON

Engine Terminology Engine Dynamics The Four Strokes Lesson 6 March 2008.

JAY DUDHELA Roll Num. - T13EC017 Enr. Num

Introduction to the Engine

The Diesel Engine The Combustion Cycle The four-stroke combustion cycle of the diesel engine is composed of the intake stroke, compression stroke, power.

ENGINE DESIGN AND OPERATION. ENGINE CLASSIFICATIONS n VALVE ARRANGEMENT n CAMSHAFT LOCATION n IGNITION TYPE n CYLINDER ARRANGEMENT n NUMBER OF CYLINDERS.

Four Stroke Cycle Engine Fundamentals.

Four Stroke Cycle In 1892 Rudolph Diesel invented the compression ignition engine named after him. The first engine was built at Augsburg Maschinenfabrik.

52 RCACS Ground School Engines PO 407 EO 1 “Basic Construction and Four Stroke Cycle”

CCAS 3381 AUTOMOTIVE SKILL I INTERNAL COMBUSTION (IC) ENGINE.

THERMAL ENGINEERING (ME 2301 ) M.R.SWAMINATHAN Assistant Professor Department of Mechanical Engineering Anna University Chennai Chennai-25.

Operational Theory of Compression Small Engines Ag. 221.

1 Four Stroke Engines How does a canon work?. 2 Engine Operation Gasoline & diesel engines convert chemical energy into mechanical energy.

Geometry Vs Engine Breathing P M V Subbarao Professor Mechanical Engineering Department Its not engine Volume, but Mass of air Decides the Power Output.

Small Engines / Outdoor Power Equipment Riverside FFA Ag Engineering.

Lecture 2. Top Dead Center (TDC): Position of the piston when it stops at the extreme point away from the crankshaft. – Top because this position is at.

Difference Between otto and diesel cycle

Chapter 32 The Four-Stroke Cycle and Cylinder Arrangements.

Objectives Explain the basic function of an internal combustion engine. Describe the five events required for internal combustion engine operation. Describe.

Basic Engine Terms. Dead Center –The term identifies the relation between the positions of the crankshaft and the piston. When the piston is at its outward.

Automotive Engines Theory and Servicing

HOW THE ENGINE WORKS RK.

PROJECT TITLE AND TEAM MEMBERS

Unit - 2 INTERNAL COMBUSTION ENGINES.

Internal Combustion Engines

Engine Cycles This presentation will explore: Engine Operation

How Many Small Engines do you have at home?

Engine Measurement CONNECTING ROD – effect on cylinder wall & piston

Technical knowledge Series Two wheelers - BikeJinni

UNIT 3 – ENERGY AND POWER 3-6 UNIT 3 Topics Covered

POWER GENERATION External And Internal Combustion Engines.

Engineering Thermodynamics ME-103

Combustion in S.I. Engine

A PRESENTATION ON 2S-PETROL AND 4S-DIESEL ENGINE

THERMAL ENGINEERING-I

Engine Definition： Engine: A machine that converts energy into mechanical force or motion.

Automotive Engines Theory and Servicing

Presentation transcript:

SNS COLLEGE OF ENGINEERING Coimbatore-107 Subject: AICE ENGINE MODIFICATIONS BY NAGARAJA .S AP/MECH

MODIFICATION To get petrol engine to run on CNG, two ratios are most essential. These are compression ratio and air-fuel ratio. The compression ratio is the ratio of the total volume between the cylinder head and the bottom dead centre (BDC) to the volume between the cylinder head and the top dead centre (TDC).

The compression ratio needed to run CNG is higher than that needed to run gasoline. This is because of the relatively high auto-ignition temperature of CNG. The auto-ignition temperature is that temperature to which a substance must be raised before it burns.

This higher compression ratio can be achieved by (i) Increasing connecting rod length. (ii) Installation of sealing plate with lower thickness. (iii) Increase of piston compression height. (iv) Decrease of engine block height

Piston modification involves increase in the piston’s compression height (perpendicular distance between the axis of piston pin and the piston crown). The compression height of the CNG’s piston is longer than that of the petrol engine. This, as in the case of sealing plate modification, shrinks the CC of the petrol engine yielding a CNG engine of relatively small CC and high compression ratio.

THANHK YOU