Precipitator

Question 1

1. What does POR mean and how does it work?

Answer 1

Power Off Rapping (POR). Program that automatically runs and takes power off of a particular field, allows it to rap, and remove ash from plates and wires. Then powers the field back up to normal and goes back to a normal rapping sequence.

Question 2

2. What does ERC mean?

Answer 2

Euro Rapping Control- sequence of rapping control

Question 3

3. What are the opacity restrictions?

Answer 3

27% or > for 1 six-minute period.

20.5% or > for 2 six-minute periods in same clock hour

Question 4

4. In the event that you experience an exceedance of opacity 6-minute average on Unit #1, what are at least 6 things that you should do in order to reduce opacity?

Answer 4

1. Stop POR
2. Stop blowers.
3. Stop rapping sequence
   4.Ensure that all chemical pumps are running, and pump stroke is set
   @ 100%.
4. Decrease load.
5. Decrease furnace pressure.