Performance study of a partial gasification pressurized combustion topping gas cycle and split rankine combined cycle: Part I? Energy analysis

2003 ◽  
Vol 27 (6) ◽  
pp. 549-560 ◽  
Author(s):  
S. De ◽  
D. Roy ◽  
A. Sarkar
Keyword(s):  
Energy Analysis ◽  
Combined Cycle ◽  
Performance Study ◽  
Pressurized Combustion ◽  
Partial Gasification

Thermodynamic performance study of an integrated gasification fuel cell combined cycle—an energy analysis

2003 ◽  
Vol 217 (2) ◽  
pp. 137-147 ◽  
Author(s):  
S Ghosh ◽  
S De
Keyword(s):  
Fuel Cell ◽  
Energy Analysis ◽  
Pressure Ratio ◽  
Combined Cycle ◽  
Performance Study ◽  
Integrated Gasification Combined Cycle ◽  
Environmental Friendliness ◽  
Overall Efficiency ◽  
Integrated Gasification ◽  
Topping Cycle

In this paper an integrated gasification combined cycle (IGCC) with a high-temperature, pressurized solid oxide fuel cell (SOFC) in the topping cycle and a single-pressure, non-reheat steam bottoming cycle has been conceptualized and analysed. An energy analysis is done for this combined cycle. The study reveals that an overall efficiency above 54 per cent is achievable for this combined cycle, which also offers satisfactory environmental friendliness. A higher pressure ratio across the gas turbine is found to improve the overall efficiency of the combined cycle. The SOFC operating temperature is found to influence the performance of the combined cycle in different ways, depending on the pressure ratios.

Thermal performance study for the coal-fired combined cycle with partial gasification and fluidized bed combustion

2001 ◽  
Vol 215 (4) ◽  
pp. 421-427 ◽  
Author(s):  
N Cai ◽  
T Yu ◽  
J Xiao ◽  
G Welford
Keyword(s):  
Fluidized Bed ◽  
Thermal Performance ◽  
Combined Cycle ◽  
Fluidized Bed Combustion ◽  
Performance Study ◽  
Integration System ◽  
Partial Gasification ◽  
Exergetic Analysis ◽  
Parametric Analyses ◽  
Pressurized Fluidized Bed Combustion

The coal-fired combined cycle with partial gasification and fluidized bed combustion (PGFBC-CC), also referred to as a hybrid cycle, has advantages of staged energy conversion and utilization, which can attain high thermal efficiency with low emissions. Four kinds of PGFBC-CC are studied in this paper, two based on pressurized fluidized bed combustion (PFBC) and two on atmospheric fluidized bed combustion (AFBC). Thermal performance calculations and parametric analyses were performed. On the basis of the results from the above analyses, the best integration system for China is suggested. In addition, a preliminary exergetic analysis is carried out for three of the PGFBC-CC variants.

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