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MassPower A telephone interview was held with Sal Paolucci, plant operations manager of MassPower, on March 2, 2001. Contact information is provided in Appendix C. The plant, located in Springfield, MA, is equipped with an evaporative condenser cooling system provided by Resorcon, Inc., a subsidiary of Niagara Blower. It is the largest power generation application of this technology in the world. Basic background information on the plant and the cooling system was presented in a 1995 paper at the ASME Industrial Power Conference (Basile, 1995). A brief description of the plant and the cooling system follows. The plant is a 240-MWe gas-fired co-generation plant, generating power for the grid and supplying steam to Monsanto’s Indian Orchard plant in Springfield, MA. Operation began in 1993. The power train is comprised of two 84-MW gas turbine/generators, a triple pressure heat recovery boiler, and a 72-MW steam turbine/generator. Evaporative cooling of the gas turbine inlet air is used for enhanced power production at ambient temperatures above 59oF. Plant cooling is provided by a wet surface air-cooled steam condenser and an auxiliary water cooler. The condenser consists of five cells condensing 661,000 lb/hr of steam and maintaining a back pressure of 2.8 in. Hga at ambient conditions of 20oF dry bulb and 19oF wet bulb. Hot weather specifications are 4.8 in. Hga back pressure at 97oF dry bulb and 80oF wet bulb for a steam flow of 582,000 lb/hr. Total power requirements are approximately 900 HP, and make-up water requirements range from 690 gpm at 7oF ambient to 1076 gpm at 97oF/80oF ambient. The unit can be operated in a plume abatement mode by isolating the spray water flow to the interior bundles of each cell with a plume reduction of 75% during “normal ambient conditions.” Plant operations personnel are quite satisfied with unit performance. Startup and shutdown are easily accomplished. Hot day operation has not been limited: The turbine alarms at 6 in. Hga and trips at 7.5 in. Hga. Back pressure on the hottest days is maintained at 4 to 4.5 in. Hga. There have been no water treatment problems, and the unit is easily cleaned on-line to maintain clean tubes. Chinese Station Chinese Station was visited on March 23, 2001. The plant is equipped with an ACC and a separate air-cooled auxiliary cooler. The condenser has been outfitted with a performance enhancement spray system to maintain plant output during hot weather. The visit was hosted by Ron Brown, plant operations manager; contact information is provided in Appendix C. The facility is operated by Constellation Services and owned by Pacific Ultrapower, a company jointly owned by Baltimore Gas & Electric and Ogden (now Covanta). It is located at Enterprise Drive, Hatler Industrial Park, Chinese Camp, California (1.5 miles south of the Rte. 108/120 split approximately 45 miles east of Modesto). Cooling Technologies: the State of the Art 3-13PDF Image | Comparison of Alternate Cooling Technologies for California Power Plants Economic, Environmental and Other Tradeoffs
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