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: 68 MW Combined Cycle Generating Plant

COMMERCIAL OPERATION: May 1992

ENERGY MANAGEMENT INCORPORATED (EMI)

DARTMOUTH POWER ASSOCIATES

Dartmouth, Massachusetts, USA

EPC CONTRACTOR: PARSONS MAIN

 DESCRIPTION:

68 MW Natural Gas/Oil Fired, Combined Cycle Generation 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.

  • Combustion Turbine Generator (GE Frame 6) – Limited Control
  • Steam Turbine Generator (ABB) – Limited Control
  • Heat Recovery Steam Generator (Nooter-Eriksen)
  • Duct Burner System (John Zink)
  • SCR System (Mitsubishi)
  • 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
  • (4) Auto Backup Controller File Pairs
  • (1) Distributed Processing Unit (DPU) for SOE
  • 846 Total I/O Supplied: 240 AI 64 AO 304 DI 160 DO 48 SOE 30 TC

SPECIAL FEATURES:
  • ACS supplied some field transmitters
  • GE Speedtronics Mark 4 Datalink
  • IBM PC Interface for Remote Monitoring, Plant Performance Calculations and Reports