Previous year question paper for AFE (B-TECH automobile engineering 4th)

Automotive fuels and emissions

Previous year question paper with solutions for Automotive fuels and emissions from 2013 to 2021

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Introduction to Fuels

Classification of automotive fuels and drivetrains, Scenario of conventional auto fuels, Oil

reserves of the world fuel quality aspects related to emissions, technological up gradations

required, Need for alternate fuel, business driving factors for alternative fuels, roadmap for

alternative fuels, alternate fuel development worldwide.

Automotive Fuels: Properties, production, storage, handling, performance and safety aspects,

advantages and disadvantages, Emissions, Engine modifications of the following

o Gaseous Automotive Fuels: Hydrogen, Compressed natural gas, Liquefied petroleum

gas:

o Bio –Fuels

o Biogas, Biodiesel:

o Alcohols

o Methanol, Ethanol, DEE, DME:

o Synthetic alternate Fuels

o Wood Gas, Tyre Pyrolysis Oil:

o Reformulated Conventional Fuels

o Emulsified Fuels:

Future alternative fuels

Ammonia: properties, ammonia in nature, hazards, carrier for hydrogen, storage, stationary

engine application, ammonia for fuel cell vehicles.

Boron: properties, overview of the boron – water process, features, analysis.

Water:Japanese water car, water fuel cell, hydrogen boosters, water to gas technology.

SECTION B

Introduction to emission

Pollutants, sources, formation of HC and CO in SI engines, NO formation in SI and CI engines,

Particulate emission from SI and CI engines, Smoke Emission in CI engines. Effect of operating

variables on Emission formation, Transient operational effects on pollution

SI Engine & CI Engines Combustion and Pollutant Formation

Basic Chemistry combustion - HC and CO formation in 4-stoke and 2-stroke SI engines - NO

formation, - Particulate emissions, - Effects of operating variables on emission formation.

Smoke emissions, Color and aldehyde emissions. Photochemical smog, Sulphur, Phosphorus

emissions,

Post Combustion Treatment

Introduction, physical conditions and exhaust gas compositions before treatment, catalytic

mechanism. Thermal reactions, installation of catalyst in exhaust lines, NOx treatment in diesel

engines. Diesel trap oxidizers

Control Techniques Engine Emission Reduction

Design changes - Optimization of operating factors - Exhaust gas recirculation - Fumigation - Air

injection PCV system - Exhaust treatment in SI engines - Thermal reactors - Catalytic converters

- Catalysts - Use of unleaded petrol.

Test Procedure & Instrumentation for Emission Measurement

2021
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2018
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2017
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2016
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2015
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2014
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2013
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