Karaalı, Rabi; Öztürk, İlhan Tekin
March 2010
Engineer & the Machinery Magazine;Mar2010, Issue 602, p28
Academic Journal
Today coal and other fossil fuels share 40% and 20% of the world's total electricity respectively. Fossil fuels playing an important role on CO2 emissions which has the greatest negative effect on greenhouse, causing 55% of the global warming. To stop negative effect on greenhouse CO2 emissions should be decreased. For that reason the CO2 emission technology of the power plants is necessary to be developed and replaced by a zero emission technology. Zero and near zero emissions power plant technologies and their cycles, and important cogeneration cycles are analyzed by the first law of the thermodynamic. Oxyfuel and water cycles' heat and electrical powers compared with sample and recuperated cycles. First law of the thermodynamic efficiency of the oxyfuel and water cycles are found less 8% than sample and recuperated cycles because of air separated unit work to separate oxygen (2-3%) and compressing work of CO2 (5-6%). For the thermodynamic analyze a computer program which its' FORTRAN codes are written by us. The results of this study are also compared with the literature and found that appropriate.


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