Cocco D.

Elmegaard B.

Henry A.

Jonnson M.

Kim J.W.

Leibowitz H.

Leonardo Pierobon

Masoud Rokni

Park Y.M.

Proell T.

Pruβ A.

Rokni M.

Smith J.M.

Tillner-Roth R.

A hybrid plant that consists of a gasification system, Solid Oxide Fuel Cells (SOFC) and a Simple Kalina Cycle (SKC) is investigated. Woodchips are introduced into a fixed bed gasification plant to produce syngas, which is then fed into an integrated SOFC-SKC plant to produce electricity. The pre-treated fuel then enters the anode side of the SOFC. Complete fuel oxidation is ensured in a burner by off-gases exiting the SOFC stacks. Off-gases are utilized as heat source for a SKC where a mixture of ammonia and water is expanded in a turbine to produce additional electric power. Thus, a triple novel system based on a gasification plant, a SOFC plant and a SKC plant is presented and investigated. The system is called IGSKC (Integrated Gasification SOFC Simple Kalina Cycle). The system layout is studied, and the optimal ammonia-water mole fraction is selected. An electrical efficiency of 58% is achieved; plant size and nominal power are selected based on the required cultivation area.SOFC heat recovery with SKC is compared to a Steam Cycle (SC). Although ammonia-water more accurately fits the temperature profile of the off-gases, the presence of a Hybrid Recuperator enhances the available work in the SC case, resulting in a higher overall thermal efficiency

Pierobon, Leonardo

Rokni, Masoud

Online Research Database In Technology

Thermodynamic Analysis of an Integrated Gasification Solid Oxide Fuel Cell Plant with a Kalina Cycle

Crossref

International Journal of Green Energy

http://orbit.dtu.dk/ws/files/162620923/SOFC_KC_ref.pdf

Thermodynamic Analysis of an Integrated Gasification Solid Oxide Fuel Cell Plant with a Kalina Cycle

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Online Research Database In Technology

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