Comparison of Alternate Cooling Technologies for California Power Plants Economic, Environmental and Other Tradeoffs

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Comparison of Alternate Cooling Technologies for California Power Plants Economic, Environmental and Other Tradeoffs ( comparison-alternate-cooling-technologies-california-power-p )

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Table 3-1 Early Major Dry Cooling Installations Cooling Technologies: the State of the Art Direct Systems Unit Neil Simpson- (Black Hills P&L) Utrillas Wyodak Touss Matimba Majuba Rugeley Ibbenbüren Gagarin Grootvlei #5 Razdan Grootvlei #6 Schmehausen Size (MWe) 20 160 330 4 x 150 6 x 665 6 x 665 (3 dry cooled) 120 150 2x100; 2x220 200 2x200; 2x210 200 300 (nuclear) Country USA (Wyoming) Spain USA (Wyoming) Iran South Africa South Africa Date 1968 1970 1977 1987 1991 1998 References Simpson 1970 March 1970 Schulenberg 1977; Kosten 1981 Kroeger 1998 Goldschagg 1995, 1999 Varley 1999 Christopher 1969 Scherf 1969 Kroeger 1998 Van der Walt et al. 1974 Trage 1990 Kroeger 1998 Hirschfelder 1973 Indirect, Natural Draft Systems UK 1962 Germany 1967 Hungary 1969/1972 South Africa 1971 Armenia 1971/1974 South Africa 1978 Germany 1977 In the U.S., the earliest installations were in Wyoming [Neil Simpson, Wyodak], where the desire to locate the plants in an area with very low-cost surface deposits of Western coal but with very limited water resources made dry cooling both the environmental and economic system of choice. The 330-MWe unit at Wyodak near Gillette, WY, was for many years the largest direct air-cooled system in the world. South Africa was the world leader in the use of dry cooling on large installations, again motivated by the need for power close to fuel recovery and refining activities in an arid region. Constructed in 1991, the 4000-MWe Matimba plant was 10 times the size of Wyodak and remains the largest plant on dry cooling in the world today. A number of units beginning with Rugeley in 1962 were of the indirect type of a Hungarian design, utilizing a direct-contact condenser and a natural draft tower. This technology was used at several installations at about the 200-MWe size range (Miliaris, 1974). The Kendal plant in 3-5

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