Rowshanaie, Omid ; Mohd Tohir, Mohd Zahirasri ; Rowshanaie, Hooman
Współtwórca: Tytuł: Tytuł publikacji grupowej: Temat i słowa kluczowe:assessment process ; dual-pressure evaporation Organic Rankine Cycle (ORC) ; maximum net power output ; first and second law of efficiencies
Abstract:The dual-pressure evaporation Organic Rankine Cycle (ORC) consists of two compression processes, two evaporation processes, and two expansion processes, and is becoming more prevalent than single-pressure evaporation ORCs due to its higher performance and maximum net power output. This study investigates different heat sources analysis in a simulated parametric dual-pressure evaporation ORC according to the assessment design process. ; The current dual-pressure evaporation ORC makes a comparison between R245fa, an old refrigerant, and R1233zd(E), a substitute for R245fa, as working fluids, paying attention to three water temperatures (100, 125, and 150 [degrees]C) as a heat source to generate maximum net power output. Based on designing an assessment process for dual-pressure evaporation ORC at 100 [degrees]C and 125 °C heat sources, R1233zd(E) is compared with R245fa, revealing an improvement of 9.58 kW and 16.14 kW in maximum net power output. ; Furthermore, according to the first and second laws of efficiency, R1233zd(E) exhibits improvements of 0.09% and 0.56%, as well as 0.15% and 1.04%, respectively. The pressure rise in low and high-pressure compression processes, parallel with a higher exergy flow rate in evaporation processes of R1233zd(E), demonstrates a direct and positive influence with a maximum net power output. At 150 [degrees]C, the power generated by the lower-pressure turbine improved by 28.1 kW in R1233zd(E) compared with R245fa.
Wydawca:Zielona Góra: Uniwersytet Zielonogórski
Data wydania: Typ zasobu: Format: DOI: Strony: Źródło:IJAME, volume 31, number 3 (2026)
Jezyk: Licencja: Licencja CC BY-NC-ND 4.0: Prawa do dysponowania publikacją: