B.TechSemester 52022-23Fuels And CombustionKME058

Fuels And Combustion (KME058) - AKTU Question Paper 2022-23

B.Tech · Semester 5 · Free PDF Download

This is the official AKTU Fuels And Combustion Previous Year Question Paper for B.Tech Semester 5, academic session 2022-23. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech

Semester:Semester 5

Session:2022-23

University:AKTU / UPTU

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Questions Asked in 2022-23

Fuels And Combustion (KME058) — extracted question text

Section AAttempt all questions in brief. 2x10 = 20

a
Define primary and secondary fuels
b
What is coal ranking?
c
Explain cracking of crude oil
d
What do mean by Wobbe’s index of gaseous fuel?
e
Define stoichiometric air
f
What are limits of flammability?
g
How combustion in a CI (diesel) engine is different from th at in SI (petrol) engine?
h
List the advantages of fluidized bed combustion. (i) Define air pollution. (j) Name the major pollutants released into the atmosphere from combustion of diesel in IC engines

Section BAttempt any three of the following: 10x3 = 30

a
Differentiate between (i) Proximate and ultimate analysis of fuel. (ii) Solid, liquid and gaseous fuels
b
Explain the three main refin ery processes involved in crude oil refining
c
Discuss the following: (i) Enthalpy of formation of products (ii) Adiabatic Flame Temperature (iii) Premixed and Diffusion flame
d
What is a burner? Write the features of a good burner. Expl ain different types of gas burners
e
Explain the effects of air pollution on human health and en vironmental change

Section CAttempt any one part of the following: 10x1 = 10

a
Calculate the GCV and NCV of the coal using the following c ompositions: (Use Dulong formula) Carbon = 85%, Hydrogen = 8%, Sulphur = 1%, Nitrogen = 2%, Ash = 4%. Take latent heat of steam = 587 Cal/g
b
What is coal preparation? D iscuss its importance and differ ent methods used for coal preparation
a
Define atmospheric distillati on.Explain the construction an d working of atmospheric distillation unit (ADU) in a refinery with the help of neat sketch
b
What is gasification? Explain the working of a updraft gasi fier with the help of well-labelled diagram
a
Calculate the minimum amount of air required for the comple te combustion of 150 kgs of fuel containing 70 % Carbon, 15 % Hydrogen, 5 % Sulphur and the rest nitrogen by weight
b
Calculate the air-fuel rat io, % of carbon-dioxide by volume in the products and dew point of products when propa ne is burned with 20% excess ai r. Assume the pressure = 101.325 kPa and temperature = 25°C
a
Discuss how will you determ ine the percentage of CO, CO 2 and O2 in the flue gases? Draw the diagram of the apparatus
b
Explain the working of pulverized fuel firing system with t he help of diagram. Write its advantages and disadvantages
a
Describe the various sources of air pollution. In your opin ion, which one source is the biggest contributor towards air pollution?
b
What are emission standards? Discuss the various ways to co ntrol emissions from vehicles

Question text is extracted from the official AKTU question paper PDF above. Check the original PDF for equations, diagrams and complete wording. Extracted: 2026-08-23.

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