Book Details

Thermal Engineering -I

Thermal Engineering -I

Published by uLektz

Course Code:ULZ0106

Author:ulektz

University: General for All University

Regulation:2017

Categories:General Engineering

Format : ico_bookePUB3 (DRM Protected)

Type :eBook

Rs.130 Rs.85 Rs.35% off

Preview Buy Now

Note : No printed book. Only ebook. Access eBook using uLektz apps for Android, iOS and Windows Desktop PC.

Topics
UNIT – I ACTUAL CYCLES AND THEIR ANALYSIS

1.1 Actual Cycles and their Analysis: Introduction

1.2 Comparison of Air Standard and Actual Cycles, Time Loss Factor, Heat Loss Factor

1.3 Exhaust Blowdown - Loss due to Gas exchange process, Loss due to Rubbing Friction

1.4 Actual and Fuel-Air Cycles of CI Engines

UNIT – II I. C. ENGINES

2.1 I. C. ENGINES : Classification - Working principles, Valve and Port Timing Diagrams

2.2 Engine systems - Fuel Carburetor, Fuel Injection System, Ignition, Cooling and Lubrication, Principle of wankle engine

2.3 Principles of supercharging and turbocharging

UNIT – III COMBUSTION IN S.I. ENGINES AND COMBUSTION IN C.I. ENGINES

3.1 Combustion in S.I. Engines : Normal Combustion and abnormal combustion

3.2 Importance of flame speed and effect of engine variables

3.3 Type of Abnormal combustion, pre-ignition and knocking

3.4 Fuel requirements and fuel rating, anti knock additives

3.5 Combustion chamber – requirements, types

3.6 Combustion in C.I. Engines : Four stages of combustion

3.7 Delay period and its importance – Effect of engine variables

3.8 Diesel Knock– Need for air movement, suction, compression and combustion induced turbulence

3.9 Open and divided combustion chambers and nozzles used

3.10 Fuel requirements and fuel rating

UNIT – IV MEASUREMENT, TESTING AND PERFORMANCE

4.1 Measurement, Testing and Performance : Parameters of performance - measurement of cylinder pressure, fuel consumption, air intake, exhaust gas composition, Brake power

4.2 Determination of frictional losses and indicated power

4.3 Performance test – Heat balance sheet and chart

UNIT – V COMPRESSORS AND RECIPROCATING

5.1 COMPRESSORS – Classification –positive displacement and roto dynamic machinery

5.2 Power producing and power absorbing machines, fan, blower and compressor-positive displacement and dynamic types – reciprocating and rotary types.

5.3 Reciprocating : Principle of operation, work required

5.4 Isothermal efficiency volumetric efficiency and effect of clearance, stage compression, undercooling, saving of work, minimum work condition for stage compression

UNIT VI ROTARY (POSITIVE DISPLACEMENT TYPE),DYNAMIC COMPRESSORS, AND AXIAL FLOW COMPRESSORS

6.1 Rotary (Positive displacement type) : Roots Blower, vane sealed compressor, Lysholm compressor – mechanical details and principle of working – efficiency considerations.

6.2 Dynamic Compressors: Centrifugal compressors: Mechanical details and principle of operation – velocity and pressure variation

6.3 Energy transfer-impeller blade shape-losses, slip factor, power input factor, pressure coefficient and adiabatic coefficient – velocity diagrams – power

6.4 Axial Flow Compressors: Mechanical details and principle of operation

6.5 Velocity triangles and energy transfer per stage degree of reaction, work done factor

6.6 Isentropic efficiency- pressure rise calculations – Polytropic efficiency

loading