کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1734239 | 1016154 | 2011 | 13 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Exergy analysis and optimization of a biomass gasification, solid oxide fuel cell and micro gas turbine hybrid system Exergy analysis and optimization of a biomass gasification, solid oxide fuel cell and micro gas turbine hybrid system](/preview/png/1734239.png)
A hybrid plant producing combined heat and power (CHP) from biomass by use of a two-stage gasification concept, solid oxide fuel cells (SOFC) and a micro gas turbine was considered for optimization. The hybrid plant represents a sustainable and efficient alternative to conventional decentralized CHP plants. A clean product gas was produced by the demonstrated two-stage gasifier, thus only simple gas conditioning was necessary prior to the SOFC stack. The plant was investigated by thermodynamic modeling combining zero-dimensional component models into complete system-level models. Energy and exergy analyses were applied. Focus in this optimization study was heat management, and the optimization efforts resulted in a substantial gain of approximately 6% in the electrical efficiency of the plant. The optimized hybrid plant produced approximately 290 kWe at an electrical efficiency of 58.2% based on lower heating value (LHV).
► Combined two-stage gasification, solid oxide fuel cells and gas turbine technology.
► Hybrid plant for efficient decentralized power and heat production from biomass.
► Through modeling, energy and exergy analyses reveal inefficiencies.
► Optimization efforts for increased plant efficiency.
► Electrical efficiency reached 58% (LHV) producing 290 kW electricity.
Journal: Energy - Volume 36, Issue 8, August 2011, Pages 4740–4752