| Summary: | 碩士 === 國立清華大學 === 動力機械工程學系 === 95 === Energy plays a vital role in national industrial development. Over 98 % demand of energy in Taiwan is imported. Besides, cost of energy rises rapidly since Kyoto Protocol was effective in February 2005. For reasons that make government actively promoting a policy of energy conservation, including reduction of carbon dioxide emission, new transformation technology research, etc. Solid oxide fuel cell/gas turbine hybrid system has been predicted with potential of reaching 70 % efficiency, is one of the best choices to be the candidate of next generation power resource.
This thesis is focused on a hybrid fuel cell/gas turbine power system with pressurized and atmospheric solid oxide fuel cell (SOFC). The exhausted heat of fuel cell stack is capable to be used by a gas turbine. Such a hybrid system can raise heat utilization and reduce energy consumption. In this research, we developed a numerical Fortran model to proceed the hybrid power plant simulation and system parameter analysis. The final result shows with on additional balance of plant equipment required, high efficiency atmospheric hybrid system is possible achieved compared with a pressurized system.
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