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المؤلفAhmad K., Sleiti
المؤلفAl-Ammari, Wahib A.
المؤلفVesely, Ladislav
المؤلفKapat, Jayanta S.
تاريخ الإتاحة2024-02-11T11:22:08Z
تاريخ النشر2021-08-16
اسم المنشورEnergy Conversion and Management
المعرّفhttp://dx.doi.org/10.1016/j.enconman.2021.114607
الاقتباسSleiti, A. K., Al-Ammari, W. A., Vesely, L., & Kapat, J. S. (2021). Thermoeconomic and optimization analyses of direct oxy-combustion supercritical carbon dioxide power cycles with dry and wet cooling. Energy Conversion and Management, 245, 114607.
الرقم المعياري الدولي للكتاب0196-8904
معرّف المصادر الموحدhttps://www.sciencedirect.com/science/article/pii/S0196890421007834
معرّف المصادر الموحدhttp://hdl.handle.net/10576/51765
الملخصOxy-combustion supercritical CO2 power cycles have the advantages of high-energy efficiency and near-zero pollutant emissions. Thus, these cycles are considered as an efficient way to reduce CO2 emissions while maintaining economic growth. The major drawbacks of this technology include the lack of validated levelized cost of electricity (LCOE) studies; lower turbine inlet temperatures studies to accommodate the integration of various energy sources; solutions for the thermodynamic imbalance of the regenerator; and investigating the dry- versus the wet-cooling methods. These drawbacks are addressed in this paper by presenting comprehensive thermoeconomic and optimization analyses for three direct oxy-fuel sCO2 power cycles in wet and dry-cooling conditions. The first cycle M1 is a direct oxy-fuel sCO2 power cycle without preheater, the second cycle M2 integrates a preheater in parallel with the low-temperature recuperator of M1 while the third cycle M3 integrates a preheater in parallel with the high and low-temperature recuperators of M1. Results show that the integration of the preheater improves the thermal efficiency of M2 by 5.81% (wet), and 3.27% (dry), and of M3 by 13.27% (wet), and 6.58% (dry). The LCOE of M1 (without preheater) is higher than that of M2 by 10.8% (wet), and 5.7% (dry), and of M3 by 19.1% (wet), and 11.4% (dry). A minimum LCOE of 4.667¢/kWhe is obtained for M3 (wet) and of 6.139¢/kWhe for M3 (dry). At higher waste heat source temperature of 700 °C, the overall efficiency is improved by an average of 11% and the LCOE is reduced by 1.43 ¢/kWhe.
راعي المشروعThe work presented in this publication was made possible by NPRP-S grant # [11S-1231-170155] from the Qatar National Research Fund (a member of Qatar Foundation). Open Access funding provided by the Qatar National Library.
اللغةen
الناشرElsevier
الموضوعLCOE
Multi-objective optimization
Supercritical carbon dioxide
sCO2 power cycle
Direct oxy-combustion
Thermoeconomic analysis
العنوانThermoeconomic and optimization analyses of direct oxy-combustion supercritical carbon dioxide power cycles with dry and wet cooling
النوعArticle
رقم المجلد245
Open Access user License http://creativecommons.org/licenses/by/4.0/
ESSN1879-2227
dc.accessType Open Access


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