Table 9 Purchasing equipment cost of supercritical carbon dioxide cycles.

From: 4E analysis of supercritical carbon dioxide (sCO2) cycles: evaluating energy, exergy, environmental sustainability, and economic impacts in combined systems

Component

 

PEC: Million dollars (M$)

First method

Second method

Depletion number(DP)

Sustainability Index(SI)

Depletion number(DP)

Sustainability Index(SI)

Depletion number(DP)

Sustainability index(SI)

Turbine

0.053

18.870

0.053

18.870

0.053

18.870

Pump

0.179

5.590

0.179

5.590

0.179

5.590

Condenser

–

–

0.720

1.390

0.286

3.500

Recuperator

0.855

1.170

0.835

1.200

0.756

1.320

HRSG-1

0.551

1.810

0.499

2.000

0.164

6.100

HRSG-2

–

–

–

–

0.625

1.600

SUM PEC

0.520

1.920

0.479

2.090

0.362

2.760

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