Bio Energy Conversion question bank

7/27/2019 Bio Energy Conversion question bank

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PRIST UNIVERSITY

PUDUCHERRY CAMPUS

Department of Mechanical Engineering

Course: M.Tech Energy Sub: BIO - ENERGY CONVERSION TECHNOLOGIES

Sub. Code: 13276H31

UNIT-I

Part A (2 mark questions)

1.What are the types of Bio-mass

2.What is cellulosic ethanol

3.What is the difference between Bio-mass and Fossil fuel?

4.Give the chemical composition of Bio mass

5.What are the advantages and disadvantages of biomass?

6.What are the methods of producing alcohol from Bio-mass?

7.Give the characteristics and composition of Bio-gas.

8.list out the various Bio-mass to energy conversion technologies.

9.In Indian scenario which Bio-mass conversion technology is popular and why?

10.Name some sources of producing Bio-Diesel and what is the conversion

mechanism of vegetable oil into Bio-Diesel


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Part B(16 mark questions)

1.What are the various types of Bio-mass and explain each of them in detail.

2.What are the advantages and disadvantages of using Bio-mass.

3.Explain the Indian Scenario in Bio mass conversion technologies.

4.Explain the carbon neutrality mechanism in Bio-energy conversion.

5.Explain the various Bio-mass conversion technologies.

UNIT-II


1.What is Bio-methanation

2.What are the various phases in Bio gas production

3..What are the parameters which affects the Bio-gas production.

4.List out the additives that can increase the bio-gas production

5.What are the types of Bio-gas plants.

6.What are the possible feed stocks for Bio-gas plants

7.What are the applications of Bio-gas

8.What are the constituents of Bio-gas.

9.Can the Bio-gas can be used for running the engines and what are the

modifications that is to be done for an engine to use Bio-gas

10.Can night soil can be used for Bio-gas production


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PART B(16 mark questions)

1.Explain the various phases in Bio-gas production.

2.What are the parameters that affect the production of Bio-gas and also explain

about the effect of addidives in Bio gas production

3.Explain the design .construction details and comparision of various types of Bio-

gas plants

4.Explain the following applications of Bio-gas in

a.Burning

b.Illumination

5.Explain about the usage of Bio-gas for running I.C. Engines coupled with Power

Production.

6.What are the modifications needed in an I.C. Engines to run for power

production.

Unit-III

Part A ( 2 mark questions)

1. Differenciate perfect, complete and incomplete combustion.2. What is equivalence ratio?

3. What is the difference between fixed bed and fluidized bed?

4. What are the requirements of fuel and ash handling equipments?

5.What is void fraction

6.What is minimum fluidization velocity?

7.What is the approximate cost of producing steam with briquettes ,is it costly or

cheaper compared with conventional fuel.

8.What are the merits and demerits of Briquetting.

9.What are the types of Briquetting.


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10.What are the factors affecting Briquetting


1.Explain the following

a.Perfect combustion

b.Complete combustion

c.Incomplete combustion.

2.Explain the fuel and ash hanling equipments of a Fluidized Bed

3.Compare the cost of producing steam with Briquettes with other conventional

Fuels.

4.Explain the various types of Briquetting technologies

5.What are the applications of Bio-mass Briquetting.

6.Explain with neat sketch Circulating Fluidized bed Combustion.

Unit IV


1.Define gasification

2.State the types of gasification

3.Write short notes on gasifier efficiency.

4.What are the applications of gasifiers

5.Give brief notes on dual fuel engines

6.How gas cooling is done in gas mode engine.

7.Define bulk density in gasification

8.Differenciate updraft and downdraft gasifier

9.Draw a neat sketch for cross draft gasifier

10.What are the substances that has to be filtered coming from gasifier to

the engine.


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PART B.(16 Mark questions)

1. With a case study explain an application of Bio-mass gasifier for power

production.

2. Explain an innovative retrofit technology to convert High speed Diesel engine

Into Dual fuel engine with Natural gas.

3. Explain what are the attachments and changes made in a Diesel Engine to run in

Dual fuel mode along with a Vegetable oil.

4. Explain the utilization of Bio-gas to run in dual mode in an I.C.Engine.

5. Explain how an L.P.G. can be used in dual fuel mode in along with

Diesel/Petrol.

6. Explain how a diesel engine can run in dual fuel mode with Hydrogen.

UNIT V

Part A(2 mark questions)

1. What if pyrolisis

2. What is carbonization.

3. What are the governing parameters regarding pyrolisis

4.What is Trace analysis.

5.What is the use of Thermo gravimetric analysis?

6.What is ceramic yield.

7.What is Differential thermal analysis

8.What are the applications of Differential thermal analysis.

9.What is differential scanning calorimetery?


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10.What are the applications of Differntial scanning calorimetry?


1.Explain in Detail the following processes.

a.Pyrolysis

b.Carbonization.

2.What are the process governing parameters of

a.Pyrolysis

b.Carbonization.

3.Explain Thermo gravimetric analysis.

4.Explain Differential scanning calorimetry.

5.Explain the typical yield rates of pyrolysis and carbonization

Bio Energy Conversion question bank

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