표제지
ABSTRACT
ABSTRACT (KOREAN)
목차
NOMENCLATURE 11
SUBSCRIPTS 13
Abbreviations 14
1. Introduction 16
1.1. Motivation 16
1.2. Literature review 17
1.3. Research significance 20
2. Configuration and modeling 21
2.1. Case definition 21
2.2. System modeling 24
2.2.1. Design modeling of the GTCC 24
2.2.2. Off-design model of the GTCC 27
2.2.3. Wind power data 31
2.2.4. Electricity demand and ambient temperature data 34
2.2.5. PtG process 35
2.2.6. Carbon capture process 38
2.2.7. Methanation process 40
2.3. Operation strategy 41
2.4. Economic analysis 42
3. Results and discussion 48
3.1. Performance analysis 48
3.1.1. Influence of hydrogen co-firing ratio 48
3.1.2. Performance comparison for annual operation 52
3.2. Economic analysis 56
4. Conclusions 60
REFERENCE 62
Table 1. Definition of cases 22
Table 2. Design specifications of the GT 26
Table 3. Bottoming cycle design parameters and GTCC performance 27
Table 4. Design specifications of the wind turbine 34
Table 5. Data for the offshore wind farm 34
Table 6. Design specifications of the CCP 39
Table 7. Parameters for economic analysis 47
Table 8. Performance analysis results 50
Table 9. Economic analysis results 59
Figure 1. Configuration of case 1 23
Figure 2. Configuration of case 2 23
Figure 3. Configuration of case 3 23
Figure 4. Normalized compressor map 29
Figure 5. Control curve of the GT 29
Figure 6. Off-shore wind farm and GTCC location 33
Figure 7. Annual average wind speed 33
Figure 8. Annual power demand and ambient temperature 35
Figure 9. Power to Hydrogen Process (PtH) 37
Figure 10. Carbon Capture Process(CCP) 37
Figure 11. Methanation Process(MP) 37
Figure 12. Variation in NG consumption according to H₂ usage 51
Figure 13. Variation in CO₂ consumption according to H₂ usage 51
Figure 14. Annual hydrogen production and consumption 54
Figure 15. Annual NG comsumption 54
Figure 16. Comparison of annual CO₂ emissions 55
Figure 17. Comparison of monthly efficiency 55
Figure 18. Breakdown of the CAPEX and OPEX saving 59