2000Mw(t) HTGR-GT power cycle cooling system alternatives

This power cycle cooling system study was a part of an overall effort to assess the economic potential of high temperature gas cooled reactor gas turbine (HTGR-GT) power plants. The cost, design and performance results obtained in the study for dry, wet/dry and wet tower systems designed for a 2000 MW(t)/800 Mw(e) HTGR-GT plant are presented in this report. Similar cooling system results obtained in the study for 800 MWe pressurized water reactor and coal-fired steam cycle power plants are also presented for comparisons with the HTGR-GT plant. The results indicate that the total evaluated costs (capital costs plus operating penalty costs) of the cooling systems for the HTGR-GT plant, in the range from the all-dry system to the wet/dry system using about 50% of the water needed for the all-wet system, are much lower than the costs of the cooling systems for both the PWR and coal plants with the same water constraints as the HTGR-GT plant