Technical and cost evaluation of alternative PFBC demonstraton plant applications. Final report

Technical Report · Thu Dec 01 04:00:00 EST 1983

OSTI ID:5366705

Borden, M; Buchanan, T L; Klett, M G; Rubow, L N

EPRI is studying a low-temperature, tubrocharged pressurized fluidized-bed combustion (PFBC) concept as a first generation PFBC. This concept is simpler (with a self-sustaining turbine) and a lower risk than combined-cycle approaches. Gilbert/Commonwealth was contracted to study the potential of five alternative applications utilizing the turbocharged PFBC cycle. The options considered include both utility and industrial repowered and grass roots plants with outputs of approximately 50 MW(e) and 25 MW(e) (equivalent). A repowered combined cycle was eliminated from the comparison since it did not appear economically viable. The utility grass roots plant which was studied has a system efficiency of 32.6%, utilizing 1800 psig/1000/sup 0/F/1000/sup 0/F steam. The other options were slightly less efficient but were still comparable to conventional coal-fired technology. An economic analysis showed that both the industrial and utility repowered options would be cost effective when a 10-year investment was considered. The ranking of total replacement energy cost less total revenue requirements showed the utility repowered case to be the most attractive option and the industrial grass roots as the least attractive. However, the large variation in financing methods, revenue requirements and other industry specific requirements suggest further investigation into individual applicatons. It was also concluded that numerous potential host sites exist for all repowered applications and that potential exists with the turbocharged PFBC concept to shorten construction times of large plants. 15 references, 13 figures, 29 tables.

• Research Organization: Gilbert/Commonwealth Associates, Reading, PA (USA)
• OSTI ID: 5366705
• Report Number(s): EPRI-CS-3338; ON: DE84920273
• Country of Publication: United States
• Language: English

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