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Coen's new microprocessor based iscan flame scanner has yet another successful
startup. Bremo Unit 4 is a 1.2 million pounds/hr B&W coal fired boiler.
As part of the burner management system, Virginia Power installed thirty-two
(32) Coen iScan flame scanners onto sixteen new ABB-CE RSFC
(Radially Stratified Flame Core) Low NOx burners during the 1999 fall
outage . Each burner has two iScan flame scanners. Using
the Remote File Select feature, both flame scanners monitor the oil warm
up fuel flame and main coal fuel flame. The advantage of the Remote File
Select option is that it allows the user to configure and monitor two
(2) distinct flame patterns with just one flame scanner. The iScan
flame scanners have been in operation for over 4,000 hours and have proven
to be functionally sound, rugged and reliable.
"All 32 scanners are networked together and tunable from a computer (PC)
located within the control room. The scanners are very difficult to gain
access to because of the tight spacing around the burners, however the
network proved to be very convenient, allowing us to manage each scanner
remotely. Each is configured to recognize either coal or oil, depending
on the firing mode. Their ability to learn the flame-on/flame-off modes
was a great time saver at startup and their operating performance has
been exceptional ." - Jay Postak, Senior Engineer, Bremo Power Station
Boiler/Burner Data
| Boiler Size: |
185,277 kw |
| Burner Type: |
Low NOx CE RSFC |
| Operation: |
Sixteen (16) burners |
| Burner Arrangement: |
4 x 4 |
| Warm Up Fuel: |
No. 2 Oil |
| Main Fuel: |
Coal |
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