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Energy and biofuels Quiz 8

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Theme: Energy and biofuels EB Quiz 8 Energy and biofuels Quiz 8

Energy and biofuels Quiz 8

Read the following articles before attempting this quiz:

Improvement of energy efficiency
Improvement of skills and motivation of personnel
Agreement on energy conservation and energy audits
Process integration
Monitoring and control
More energy-efficient technologies

Energy and biofuels Quiz 8

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Question 1 of 10

1. Question
1. What is the most common metric used to measure energy efficiency in pulp and paper mills?
- A. Specific Energy Consumption (SEC) per unit of production.
- B. Total annual heat use.
- C. Boiler operating temperature.
Correct

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Question 2 of 10

2. Question
2. Why can SEC give a misleading picture of actual energy efficiency?
- A. SEC always increases when production increases.
- B. Changes in utilisation rate can lower SEC without real efficiency improvements.
- C. SEC does not include electricity consumption.
Correct

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Question 3 of 10

3. Question
3. Which of the following is an example of improving energy efficiency through new technology?
- A. Installing heat pumps with low electricity consumption.
- B. Installing carbon capture unit.
- C. Adding more combustion stages.
Correct

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Question 4 of 10

4. Question
4. Why might a mill deliberately use more energy during certain hours?
- A. To increase SEC values.
- B. Because electricity can be cheap or even negative‑priced at times.
- C. To reduce flexibility in processes.
Correct

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Question 5 of 10

5. Question
5. What is one main reason electrification improves energy efficiency?
- A. Electrification avoids combustion losses and waste heat.
- B. It always increases process temperature.
- C. It increases flue gas flow.
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Question 6 of 10

6. Question
6. What is a major challenge in organising personnel training for energy efficiency?
- A. Difficulty securing funding and management buy‑in.
- B. Lack of available technology.
- C. Energy efficiency training is not useful.
Correct

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Question 7 of 10

7. Question
7. What is the first step in Finland’s three‑phase Energy Audit Programme?
- A. Implementation of identified savings.
- B. Scanning phase: energy efficiency analysis.
- C. Full‑scale pilot projects.
Correct

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Question 8 of 10

8. Question
8. At which level of process integration does a mill deliver district heating to the community?
- A. Internal process integration
- B. Integration between processes
- C. Energy systems integration between industry and society
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Question 9 of 10

9. Question
9. Why can BAT (Best Available Techniques) values be problematic for benchmarking?
- A. BAT values never change.
- B. BAT values change over time and represent design‑load conditions.
- C. BAT values ignore heat consumption.
Correct

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Question 10 of 10

10. Question
10. What is a key reason specific electricity consumption (SEC) in mechanical pulping is unlikely to decrease?
- A. Quality requirements for pulp continue to increase.
- B. Refiners cannot be updated.
- C. Electricity prices are fixed.
Correct

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This page has been updated 02.04.2026

Energy and biofuels

Introduction to Energy and biofuels
Global forest industry energy use
Production processes recovery and energy
- 📋 Theme Quiz 1
Chemical recovery
Energy consumption trends in forest industry
Defining the energy consumption in modern processes
Energy supply in forest industry
Energy production with options for increased power production
Novel solutions in the pulp mill energy supply
Improvement of energy efficiency

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