Studies on Carbon Dioxide Cycles for Power Generation : 1st Report, Fundamental Condensation Cycles

概要

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Further improvements in thermal efficiency of steam and nuclear power plants are an important problem in the present energy crisis. This report presents the performance characteristics of two fundamental condensation cycles employing carbon dioxide as a working medium. The effects of cycle parameters on thermal efficiency in non-reheat and reheat condensation cycles and values of optimum reheat pressures are discussed. Furthermore, losses in each component in different Co_2 cycles by utilizing the exergy concept based on the second law of thermodynamics were analyzed and the effects of regenerating on irreversible losses were discussed. As the result, it was shown that at turbine inlet pressure of about 250 ata and turbine inlet temperatures higher than 650℃ CO_2 condensation cycles in double- or triple-reheating give a better performance than conventional steam power-plant cycles.
社団法人日本機械学会の論文