Define a fuel and state its importance in chemical industries.
[3 marks]Explain the procedure for determination of moisture and ash content in proximate analysis.
[4 marks]Compare solid, liquid, and gaseous fuels in terms of calorific value, ease of transport, combustion efficiency, and storage.Suggest the best type of fuel for industrial boilers with justification.
[7 marks]Define calorific value (CV) and distinguish between GCV and NCV.
[3 marks]Discuss the construction and working of a by-product coke oven.
[4 marks]With a neat flow diagram, explain coal gasification and the steps in synthetic fuel production from coal.
[7 marks]Discuss about the coal combustion techniques such as (a) Fixed-bed, (b) Fluidized- bed, and (c) Pulverized-fuel combustion.
[7 marks]Write short notes on coal tar distillation products.
[3 marks]Describe the steps involved in coal mining and preparation.
[4 marks]Describe in detail the petroleum refining process with a neat flow diagram showing different fractions and their uses.
[7 marks]What is meant by petroleum refining?
[3 marks]Compare octane and cetane numbers. Explain their significance in fuel performance.
[4 marks]Describe in detail the petroleum refining process with a neat flow diagram showing different fractions and their uses.
[7 marks]Mention three important properties of good liquid fuels.
[3 marks]Describe the manufacture of producer gas and state its advantages and limitations. Page 1 of
[2 marks]Explain with neat diagrams the production and purification of biogas. Discuss its advantages as a renewable energy source.
[7 marks]What is LPG? Mention its main components and uses.
[3 marks]Write short notes on hydrogen and acetylene as fuel gases and their industrial applications.
[4 marks]Discuss in detail the production, composition, and applications of producer gas and water gas. Compare their efficiencies and limitations.
[7 marks]Define air-fuel ratio and stoichiometric air requirement.
[3 marks]Discuss the principle and working of Orsat apparatus used for flue gas analysis.
[4 marks]Describe in detail the working of fluidized bed combustion (FBC) and circulating fluidized bed boiler (CFB) systems. Discuss their advantages over conventional firing systems.
[7 marks]What are heat treatment furnaces and their industrial uses?
[3 marks]Discuss pulverized coal firing system with a neat diagram.
[4 marks]Agaseous fuel has the composition: C = 85%, H = 10%, O = 5%. Calculate: (a) Theoretical air required for complete combustion, (b) Composition of dry flue gases. Page 2 of
[2 marks]