Group task - Quiz

8. RWE: Power: Visiting power plant Niederauem - answer the questions in a written elaboration of at least 2 pages

- Prepare a presentation of 10-12 minutes containing answers and explanations

- The questions can be answered by literature or internet research and with information received

during the guided visit at the power plant

1. What is the gross power of the power plant Niederauem?

2. Which amount of brown coal is used each year at the power plant? (approximated mean value)

3. How many full load hours did the power plant reach in 2014?

4. The location Niederauem is called coal innovation center. Which are the methods tested

here? Which measures are taken in order to minimize the environmental impact of CO2

emissions?

5. The fuel used in the power plant is brown coal. Which process steps are used to prepare the coal

until it is added to the boiler?

6. The power plant unit BoA1 is one of the most modern boilers in the world

6.1. What does BoA mean?

6.2. In which region of the boiler is heat added for superheating?

6.3. Which heat transfer mechanisms are dominant in which region of the boiler?

6.4. Which fuel/air ratio is used?

6.5. How efficient is the power plant unit?

7. Steam turbines represent an essential component of the power plant

7.1. How many flows does the turbo-generator have? (I am not sure whether the translation is

right, I dont know a Turbosatz at all)

7.2. What is a retrofit and which measures have been implemented during the last retrofit of

the steam turbines?

7.3. How large is the steam mass flow?

7.4. How efficient are the steam turbines?

8. Which exhaust gases and pollutants are emitted from the power plant Niederauem? Create a

graph showing the mass of emitted substances in tons from 2013.