Thermoeconomic Analysis of a Novel Multi Generation System Combined with Compressed Air Energy Storage and Ejector Cooling System with Zeotropic Working Fluid for Heating, Cooling and Hydrogen Production
نویسندگان
1 Department of Mechanical Engineering, Faculty of Engineering, Vali-e-Asr University of Rafsanjan, Rafsanjan, Kerman, Iran.
2 Department of Mechanical Engineering, Faculty of Engineering, University of Mohaghegh Ardabili, Ardabi, Iran.
doi
10.30501/jree.2026.514746.2332چکیده
This study proposes and explores a novel compressed air energy storage system that integrates combined cooling, heating, and electricity generation. The system employs sulfur dioxide as the working fluid in the cogeneration process to generate coolant through the ejector cooling and heating subsystem. The review includes a comprehensive thermodynamic and thermo-economic analysis. The proposed system is evaluated from multiple perspectives, and its performance is assessed through specific output parameters. Furthermore, a case study is conducted to evaluate the system's performance in a specific scenario. Additionally, a sensitivity analysis is performed to examine the system's behavior under varying conditions using a zeotropic working fluid for the cooling cycle. The findings from the thermodynamic analysis reveal an energy efficiency of 21% and an exergy efficiency of 20% for the proposed system. This system is anticipated to generate hydrogen at a rate of 106.3 kg per hour, with a recorded output power of 45,342 kW. Moreover, the economic assessment indicates that the total cost of the system is $268.4 per GJ. The levelized cost of electricity generation is calculated at 19.02, while the levelized cost of hydrogen production is 408.9. These figures further demonstrate the system's robust thermodynamic efficiency and economic feasibility. This research may introduce a novel approach to enhancing the thermodynamic performance of multi-generation systems.
