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Title: Reducing NO{sub x} while maintaining boiler performance using constrained sequential optimization

Long Island Lighting Company (LILCO) utilizes boiler tuning as an integral part of their compliance strategy to meet the requirements of the Clean Air Act Amendments of 1990. A desirable tuning solution should be effective not only for minimizing NO{sub x} emissions but also offer opportunities for improved thermal performance leading to cost savings and a rapid return on investment. Guided by these objectives, LILCO decided to apply a new technology, co-developed by EPRI, described as Sequential Process Optimization (SPO) which makes possible immediate reductions in NO{sub x} while constraining other emission and thermal performance parameters to avoid any adverse effects. Known as the ULTRAMAX Method this implementation of SPO consists of computer software and the supporting methodology which builds on existing boiler system knowledge and guides the operator through a sequence of control parameter adjustments to achieve ever-improving levels of performance. It is utilized during normal operations and can be applied to boiler systems of virtually any design. This paper describes an application of this SPO technology to an oil-fired boiler system after many successes with coal-fired systems. NO{sub x} was reduced by about 30% from previously untuned baseline conditions at full load with less than two weeks ofmore » effort.« less
Authors:
 [1] ;  [2]
  1. Long Island Lighting Co., Melville, NY (United States). Environmental Engineering Dept.
  2. PowerMAX Service of Ultramax Corp., Cincinnati, OH (United States)
Publication Date:
OSTI Identifier:
271864
Report Number(s):
CONF-950196-
TRN: IM9635%%291
Resource Type:
Conference
Resource Relation:
Conference: Air & Waste Management Association (AWMA) conference on acid rain & electric utilits: permits, allowances, monitoring & meteorology, Tempe, AZ (United States), 23-25 Jan 1995; Other Information: PBD: 1995; Related Information: Is Part Of Acid rain and electric utilities: Permits, allowances, monitoring and meteorology; Dayal, P. [ed.] [Tucson Electric Power Co., AZ (United States)]; PB: 940 p.
Publisher:
Air and Waste Management Association, Pittsburgh, PA (United States)
Country of Publication:
United States
Language:
English
Subject:
20 FOSSIL-FUELED POWER PLANTS; ELECTRIC UTILITIES; AIR POLLUTION ABATEMENT; NITROGEN OXIDES; NEW YORK; BOILERS; PERFORMANCE