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Title: Performance of the NO{sub x} emissions advisor and advanced steam temperature control at Possum Point Station

Virginia Power installed Stone and Webster`s NO{sub x} Emissions Advisor and Advanced Steam Temperature Control Systems on Possum Point Units 3 and 4 during the Spring of 1995 to achieve near-term NO{sub x} compliance objectives and improve thermal performance. The installation of the advanced control and automation systems was integrated into the existing control system using standard hardware and software. The advanced control systems operate under Windows-NT on a Pentium personal computer (PC) in a multi-process environment, exchanging data with the distributed control system (DCS) through a dedicated serial link. Testing has demonstrated NO, reductions of greater than 20 percent through the application of the NO{sub x} Emissions Advisor on these units, while maintaining steam temperatures and unit efficiency. Possum Point Power Station Units 3 and 4 are pulverized coal, tangentially fired boilers, producing 107 and 232 MW, respectively.
Authors:
 [1] ;  [2]
  1. Virginia Power Co., Glen Allen, VA (United States)
  2. Stone and Webster Engineering Corp., Boston, MA (United States)
Publication Date:
OSTI Identifier:
103723
Report Number(s):
CONF-950414-
TRN: IM9541%%162
Resource Type:
Conference
Resource Relation:
Conference: 57. annual American power conference, Chicago, IL (United States), 18-20 Apr 1995; Other Information: PBD: 1995; Related Information: Is Part Of American Power Conference: Proceedings. Volume 57-II; PB: 914 p.
Publisher:
American Power Conference, Chicago, IL (United States)
Country of Publication:
United States
Language:
English
Subject:
20 FOSSIL-FUELED POWER PLANTS; AIR POLLUTION MONITORS; PERFORMANCE; FOSSIL-FUEL POWER PLANTS; COMPUTERIZED CONTROL SYSTEMS; NITROGEN OXIDES; AIR POLLUTION ABATEMENT