426 South Main Street
Pittsburgh PA, 15220
Phone No.: (412) 921-3226
Fax No.: (412) 921-9660

INSTALLATION DESCRIPTION BRIEF

INDUSTRY: IPP (Independent Power Producer)

APPLICATION: 39.2 MW Combined Cycle Cogeneration Plant

COMMERCIAL OPERATION: June 1989

SITHE ENERGIES USA, INC.

NORIS - North Island Naval Air Station at Coronada

San Diego, California, USA

EPC CONTRACTOR: EBASCO SERVICES INC.

DESCRIPTION:

39.2 MW Natural Gas/Oil Fired, Combined Cycle Cogeneration Plant consisting of a single gas turbine generator exhausting into a dual pressure Heat Recovery Steam Generator (HRSG), supplying steam to a single condensing steam turbine generator.

Plant consists of the following systems that are controlled via the Distributed Control System.
  • Gas turbine generator (Stewart & Stevenson – LM5000) – Limited Control
  • Steam turbine generator (Existing) – Limited Control
  • Heat Recovery Steam Generator (Vogt)
  • Duct Burners
  • Interface to existing conventional package boiler
  • Emissions control via SCR ammonia injection (Hitachi)
  • Export Steam System @ 140 KPPH, 300 PSIG
  • Alarm and data acquisition from package systems
  • Electrical System Monitoring with integral SOE

All Balance of Plant Systems - Condensate, Feedwater, Fuels, Mechanical Auxiliaries, etc.

CONTROL EQUIPMENT:

Leeds+Northrup MAX 1 DCS with the following components:
  • (2) Operator Stations
  • (1) Operator Station Second Screen
  • (3) Auto Backup Controller File Pairs
  • (1) Distributed Processing Unit (DPU) for SOE
  • 848 Total I/O Supplied: 180 AI 48 AO 368 DI 128 DO 40 TC 20 RTD 16 PI 48 SOE

SPECIAL FEATURES:
  • Stewart & Stevenson LM5000 Datalink
  • IBM PC Interface for Remote Monitoring, Plant Performance Calculations and Reports