TABLE 7-1 DOE's Program Goals for Pulverized Coal Systems

 

Advanced Pulverized Coal

Indirectly Fired Cycle: Externally Fired Combined-Cycle/ High-Performance Power System

Direct Coal-Fired Heat Engines

Technology Goals

Low-Emission Boiler System

Coal-Fired Cogeneration

 

Direct Coal-Fired Gas Turbines

Direct Coal-Fired Diesels

Net efficiency, percent

42

70 (total system)

50

40

45

Emissions, fraction of New Source

SO2

1/3

Meet local regulations

1/10

Meet

Meet

Performance Standards

NOx

1/3

Meet local regulations

1/10

Meet

Meet

(NSPS)

Particulates

1/2

Meet

1/4

Not specified

Not specified

Air toxics emissions relative to 1990 Clean Air Act amendments

Meet

Meet

Meet

Meet

Meet

Solid wastes

Salable

Benign

Benign/salable

Not specified

Not specified

Capital cost, $/kW

1,400

NA

1,200

1,400

1,300

Electricity cost compared to current pulverized coal

Lower

NA

10 percent lower

Lower

Lower

Commercial completion milestones

Commercial demonstration by 2000

5 MW demonstration in 2001

Externally fired combined-cycle demonstration—1997; high-performance power system demonstration—2003

Proof of concept supporting projects complete in 1994

1.8-MW proof-of-concept demonstration in 1994

Development status

Preliminary commercial design in 1994

System design completed in 1994

Development and testing of ceramic heat exchanger ongoing

Complete in 1993

Complete in 1993

NA, not available

Source: DOE (1993a).



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