INTERNAL COMBUSTION ENGINES LECTURER PROF.Dr. DEMIR BAYKA.

Slides:

Advertisements

Similar presentations

Unit C: Agricultural Power Systems

Advertisements

PRESENTED BY: A YILIYA.P.S BHAGYA LEKSHMI.S DHANYA.S JAYASREE.L REVATHY.C.G S.T.D :- X.C SCHOOL:- GOVT. V.H.S.S MANACAUD.

Chapter 3 Engine Operation

ENGINE HEAT TRANSFER P M V Subbarao Professor Mechanical Engineering Department Loss of Heat is encouraged only to keep engine safe…. It’s a penalty on.

I.C. ENGINES LECTURE NO: 14 (5 May 2014).

A User-Friendly, Two-Zone Heat Release and Emissions Model Jeremy Cuddihy Major Professor: Dr. Steve Beyerlein.

ENGINE OPERATION CHAPTER 3.

Piston Rings. Pressure behind the FIRST compression ring is close to that in the cylinder Pressure behind the FIRST compression ring is close to that.

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.

Cooling As working temperatures rise, the strength of metals used reduces. This in turn will force manufacturers to use superior metals/alloys, which can.

Interest Approach Identify the major systems of an engine.

Engine friction and lubrication

INTERNAL COMBUSTION ENGINES LECTURER PROF.Dr. DEMIR BAYKA.

Engine Cooling Dr Jehad Yamin. Why Cooling? To prevent excessive overheating of any part of the cylinder which may give rise to pre-ignition. The strength.

INTERNAL COMBUSTION ENGINES LECTURER PROF.Dr. DEMIR BAYKA.

Thermal Performance Analysis of A Furnace

SMALL ENGINES ENGINE OPERATION FOR A FOUR STROKE ENGINE.

Engine Systems and Components

Section 16.3 Using Heat.

Piston The piston comprises of two pieces, the crown and skirt. The crown is subjected to high temperatures in the combustion space and is liable to be.

Model: 3D Piston. Diesel Engine Piston Studies the deformation and distribution of stresses in a suggested design at steady-state conditions Applied piston.

Thermal Energy. Objectives 6.1 Compare and contrast the transfer of thermal energy by conduction, convection, and radiation. 6.1 Differentiate between.

Heat and States of Matter

LESSON FOURTEEN. WATER COOLING SYSTEM 1.HEAT SOURCES.

Kinematic Analysis for A Conventional I.C. Engine P M V Subbarao Professor Mechanical Engineering Department Creation of Instantaneous Volume, Surface.

Engine heat transfer Dr. Primal Fernando

THIS IS With Host... Your Modified T/F Multiple Choice Multiple Choice Completion Modified T/F.

Thermodynamic Analysis of Internal Combustion Engines P M V SUBBARAO Professor Mechanical Engineering Department IIT Delhi Work on A Blue Print Before.

Thermal energy Ch. 6 mostly. Transferring thermal NRG There are three mechanisms by which thermal energy is transported. 1. Convection 2. Conduction 3.

Cooling and Lubrication Systems Chapter 8

INTERNAL COMBUSTION ENGINES LECTURER PROF.Dr. DEMIR BAYKA.

Cylinder Head Bolts.

Thermodynamics Part II. Remaining Topics Mechanisms of Heat Transfer Thermodynamic Systems and Their Surrounding Thermal Processes Laws of Thermodynamics.

Unit 2 Terms & Definitions.  Legal requirements designed to protect the public by providing guidelines for structural, electrical, plumbing, and mechanical.

Internal Energy: The sum of all energy in a substance, potential And kinetic. This energy changes constantly in an internal Combustion engine because.

Engine Components • Four-Stroke Cycle Engines • Engine Output

Simplified Analysis of Radiation Heat Transfer in A Furnace P M V Subbarao Professor Mechanical Engineering Department Empirical Testing for Cooling Capacity.

Cooling Systems Chapter #12. Principles of Engine Cooling Average temp of burned gases in combustion chamber of an air-cooled engine is about 3,600 degrees.

MECHANICAL ENGINEERING,

INTERNAL COMBUSTION ENGINES LECTURER PROF.Dr. DEMIR BAYKA.

WATER COOLING SYSTEM. 1.HEAT SOURCES  Burning of fuel  Heat developed by compression of air  Frictional heat.

INTERNAL COMBUSTION ENGINES LECTURER PROF.Dr. DEMIR BAYKA.

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

1 Agricultural Power Systems Identifying Engine Systems and Their Components.

Temperature and Heat Chapter 6 Section 1

Section 3 Using Heat.

Heat engines played a key role in the development of the modern industrial world. Steam locomotives were an important early use of the steam engine. Electric.

Chapter 4 Compression System

AE 412 THERMODYNAMIC CYCLE SIMULATION II Prof.Dr. Demir Bayka.

Development of Simplified Model for Furnace Cooling Capacity P M V Subbarao Professor Mechanical Engineering Department Empirical Testing for Cooling.

13.3 Using Heat. I. Home Heating Systems A.Forced-Air System-the most common type of heating system. 1.Fuel is burned in a furnace & heats air. 2. A fan.

UNIT –III(B) POWER PLANTS

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

Using Thermal Energy Mrs. Nell 8 th Grade Physical Science Chapter 6 Review.

Unit 61: Engineering Thermodynamics Lesson 12: Combustion Engines.

Cooling System Get the engine up to optimum operating Temperature as quickly as possible and maintains it at that temperature. Controls the heat produced.

Manoj kumar 2009JE0406 Mining machinery engineering.

Lubricating system Components

The Engine Cooling System

Unit 61: Engineering Thermodynamics

13.3 Using Heat.

ME390 Automotive Mechanics

OUTLINE Combustion Chamber Deposits

Lubricating system Components

______________ Combustion Engine

Ch. 10 Heat Transfer in Engines

Ravi Kumar Sahni M.E 3rdyear

Reasons for Lubrication

Cooling System In I.C.E.

Presentation transcript:

INTERNAL COMBUSTION ENGINES LECTURER PROF.Dr. DEMIR BAYKA

QUIZ No: List the engine parameters that are affected by heat transfer.

ENGINE HEAT TRANSFER EFFECTS OF HEAT TRANSFER STRENGTH OF ENGINE COMPONENTS OIL VISCOSITY ENGINE PERFORMANCE ABNORMAL COMBUSTION EMISSIONS TURBOCHARGER PERFORMANCE MECHANICAL EFFICIENCY

STRENGTH OF THE ENGINE COMPONENTS WILL DECREASE DUE TO 1. HIGH TEMPERATURE 2. THERMAL FATIQUE

STRENGTH OF THE ENGINE COMPONENTS MAXIMUM GAS TEMPERATURE  2500 K MAXIMUM ALLOWABLE METAL TEMPERATURES CAST IRON  400 C ALUMINUM ALLOY  300 C

STRENGTH OF THE ENGINE COMPONENTS THERMAL STRESSES 1) UNEVEN COOLING OF THE ENGINE 2) RATE OF COOLING

OIL VISCOSITY IN GENERAL THE TEMPERATURE OF THE OIL SHOULD NOT EXCEED 180 C TEMPERATURES OF C MAY BE TOLERATED AROUND THE TOP LAND OF THE PISTONS

ENGINE PERFORMANCE HEAT TRANSFER FROM THE GAS TO THE CYLINDER WALLS IS LOSS OF USEFUL ENERGY. MORE HEAT TRANSFER MEANS LESS EFFICIENCY AND LESS SPECIFIC WORK (P b )

ABNORMAL COMBUSTION COOLING OF END GAS ZONE (KNOCKING) COOLING OF EXHAUST VALVE (PRE-IGNITION) COOLING OF SPARK PLUG (TYPE OF SPARK PLUG AND PLACING)

EMISSIONS CO & HC OXIDATION ARE AFFECTED BY HEAT TRANSFER

TURBOCHARGER PERFORMANCE THE TEMPERATURE OF THE EXHAUST GASES AFFECTS THE PERFORMANCE OF THE TURBOCHARGER

MECHANICAL EFFICIENCY FRICTION IS AFFECTED BY HEAT TRANSFER AND IN RETURN AFFECTS HEAT TRANSFER

MECHANICAL EFFICIENCY FAN & WATER PUMP SELECTION AND POWER ARE AFFECTED BY HEAT TRANSFER

MODES OF HEAT TRANSFER 1) CONDUCTION BETWEEN MATING ENGINE COMPONENTS

MODES OF HEAT TRANSFER 2) CONVECTION BETWEEN GAS & CYLINDER SURFACE

MODES OF HEAT TRANSFER 3) RADIATION BETWEEN SOOT & CYLINDER SURFACE IN CI ENGINES

HEAT TRANSFER FROM THE WORKING GAS TO THE CYLINDER WALLS

EMPIRICAL RELATIONSHIP WAS PROPOSED BY ANNAND

HEAT TRANSFER IS TO ; 1) CYLINDER HEAD 2) PISTON TOP 3) CYLINDER LINER EACH AREA HAS A DIFFERENT AND APPROXİMATELY CONSTANT SURFACE TEMPERATURE. THESE TEMPERATURES WILL VARY SLIGHTLY WITH RESPECT TO THE TYPE OF ENGINE THE SWING OF CYLINDER HEAD TEMPERATURE IS APPROXIMATELY 10 C

HEAT TRANSFER AREAS CYLINDER HEAD AND PİSTON TOP : LINER AREA

PROPERTIES