Evaluation of characteristics and economics of a CO2-capturing H2O turbine power generation system utilizing waste heat from a garbage incineration plant Online publication date: Thu, 27-Aug-2015
by Pyong Sik Pak; Yutaka Suzuki; Takanobu Kosugi
International Journal of Global Energy Issues (IJGEI), Vol. 11, No. 1/2/3/4, 1998
Abstract: A CO2-capturing, hybrid-type of power generation system with highly efficient use of waste heat from factories, was proposed and its characteristics and economics were evaluated. In the system, waste heat from factories is utilized to improve thermal efficiency and gas turbine fuel is burned in the combustor by using oxygen instead of air to make it easy to capture generated CO2from the turbine exhaust gas. By taking a garbage incineration plant as an example of waste heat emitting factories, the net enthalply efficiency of the system was estimated to be 69.6 per cent on the basis of consumed fuel, where both the power required to produce high-pressure oxygen and to liquefy captured CO2 is taken into account. The proposed CO2-capturing system was estimated to be economically feasible for the reference case assumed. Sensitivity analysis on vital economic indicators in the reference case has also been performed.
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