Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.11851/11685
Title: | Technoeconomic Analysis of Oxygen-Supported Combined Systems for Recovering Waste Heat in an Iron-Steel Facility | Authors: | Besevli,B. Kayabasi,E. Akroot,A. Talal,W. Alfaris,A. Assaf,Y.H. Khudhur,J. |
Keywords: | CO<sub>2</sub> cycle Kalina cycle organic Rankine cycle steam Rankine cycle thermal analysis waste heat recovery |
Publisher: | Multidisciplinary Digital Publishing Institute (MDPI) | Abstract: | In this study, it is proposed to generate electrical energy by recovering the waste heat of an annealing furnace (AF) in an iron and steel plant using combined cycles such as steam Rankine cycle (SRC), organic Rankine cycle (ORC), Kalina cycle (KC) and transcritical CO2 cycle (t-CO2). Instead of releasing the waste heat into the atmosphere, the waste heat recovery system (WHRS) discharges the waste heat into the plant’s low-temperature oxygen line for the first time, achieving a lower temperature and pressure in the condenser than conventional systems. The waste heat of the flue gas (FG) with a temperature of 1093.15 K from the reheat furnace was evaluated using four different cycles. To maximize power generation, the SRC input temperature of the proposed system was studied parametrically. The cycles were analyzed based on thermal efficiency and net output power. The difference in SRC inlet temperature is 221.6 K for maximum power output. The proposed system currently has a thermal efficiency and total power output of 0.19 and 596.6 kW, respectively. As an environmental impact, an emission reduction potential of 23.16 tons/day was achieved. In addition, the minimum power generation cost of the proposed system is $0.1972 per kWh. © 2024 by the authors. | URI: | https://doi.org/10.3390/app14062563 https://hdl.handle.net/20.500.11851/11685 |
ISSN: | 2076-3417 |
Appears in Collections: | Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection |
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