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Asli Tiktas
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| Özet |
| Geothermal energy has been recognized as a promising renewable resource for sustainable power generation; however, the efficiency of conventional geothermal power plants has remained relatively low, and high investment costs have limited their competitiveness with other renewable technologies. In this context, the present study introduced an innovative geothermal electricity generation system aimed at enhancing energy efficiency, cost-effectiveness, and sustainability. Unlike traditional configurations, the system raised the geothermal source temperature passively by employing advanced heat transfer mechanisms, eliminating the need for additional energy input. Comprehensive energy, exergy, and exergoeconomic analyses were carried out, revealing a net power output of 43,210 kW and an energy efficiency of 30.03%, notably surpassing the conventional Kalina cycle's typical 10.30--19.48% range. The system's annual electricity generation was 11,138.53 MWh, with an initial investment of USD 3.04 million and a short payback period of 3.20 years. A comparative assessment confirmed its superior thermoeconomic performance. In addition to its technoeconomic advantages, the environmental performance of the proposed configuration was quantified. A streamlined life cycle assessment (LCA) was performed with a functional unit of 1 MWh of net electricity. The proposed system exhibited a carbon footprint of 20--60 kg CO2 eq MWh−1 (baseline: 45 kg CO2 eq MWh−1), corresponding to annual emissions of 0.22--0.67 kt CO2 eq for the simulated output of 11,138.53 MWh. Compared with coal- and gas-fired plants of the same capacity ... |
| Anahtar Kelimeler |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale |
| Dergi Adı | Energies |
| Dergi ISSN | 1996-1073 Wos Dergi Scopus Dergi |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Dergi Grubu | Q3 |
| Makale Dili | Türkçe |
| Basım Tarihi | 09-2025 |
| Cilt No | 18 |
| Sayı | 5195 |
| Doi Numarası | 10.3390/en18195195 |
| Makale Linki | https://doi.org/10.3390/en18195195 |
| Atıf Sayıları |
