نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجو دکتری، گروه مهندسی مکانیک، دانشکده فنی، دانشگاه ولی عصر رفسنجان، رفسنجان، ایران
2 استاد، گروه مهندسی مکانیک، دانشکده فنی و مهندسی، دانشگاه محقق اردبیلی، اردبیل، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
This study investigates a multi-generation system that allows for power generation, cooling capacity, and hydrogen production. The system consists of a gas cycle unit, an absorption heat transformer, a proton exchange membrane electrolysis, an air energy storage system, and an air heat exchanger generator. The energy analysis in the case study of the proposed system aims to calculate key parameters such as net output power, hydrogen production rate, and energy efficiency. The exergy evaluation performed in the studied system is of great importance in identifying exergy degradation in the system components to improve performance. In addition, a parametric analysis was performed to understand how different operating conditions affect the system performance. The innovative aspect of the present study is that the gas turbine losses are recovered and directly used to supply the energy consumption of the electrolyzer for hydrogen production. The results of the thermodynamic evaluation show that the energy efficiency of the proposed system is 26% while the exergy efficiency is 12%. The results show that this system is capable of producing hydrogen at a rate of 0.037 kg/h, which can meet the needs of a part of the target consumer. The total exergy destruction in the studied system is 1479 kW and the output power is 49.5 kW. The economic analysis shows the total cost of the system to be $0.204 per gigajoule. In addition, the break-even cost of electricity production is $4.379 and the cost of hydrogen production is $1.741.
کلیدواژه‌ها [English]
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