Akademik Veri Yönetim Sistemi
JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS, cilt.18, 2026 (SCI-Expanded, Scopus)
To address the limitations of conventional cooling systems and the global shift toward natural refrigerants, this study presents a comprehensive energy, exergy, environmental, and enviroeconomic (4E) analysis of a novel ejector intercooler refrigeration cycle (NEIRC) integrated with a power cycle. Unlike previous studies, the proposed configuration uniquely utilizes the waste heat from the gas cooler of the high-temperature circuit (HTC) to drive a transcritical carbon dioxide (CO2) Rankine cycle, thereby generating auxiliary power for the system. The optimum gas cooler pressures were determined for varying gas cooler temperatures (35 degrees C to 50 degrees C) and evaporator temperatures (-50 degrees C to -25 degrees C). Results indicate significant performance enhancements: at a gas cooler temperature of 35 degrees C and an evaporator temperature of -40 degrees C, the NEIRC demonstrated an 8.59% increase in coefficient of performance (COP) and an 8.56% enhancement in exergy efficiency compared to the standard ejector intercooler refrigeration cycle (EIRC). Additionally, the NEIRC achieved an 11.5% reduction in CO2 emissions and an 11.47% cost advantage over the reference system. These findings provide a vital theoretical benchmark for researchers working on integrated energy systems and demonstrate that the NEIRC is a promising, sustainable solution for low-temperature industrial cooling applications, offering a viable pathway to reduce the carbon footprint of refrigeration technologies.