Thermoeconomic optimization and exergy analysis of transcritical CO2 refrigeration cycle with an ejector
سال انتشار: 1395
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 495
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شناسه ملی سند علمی:
JR_EES-4-1_005
تاریخ نمایه سازی: 28 شهریور 1395
چکیده مقاله:
The purpose of this research is to investigate thermoeconomic optimization and exergy analysis of transcritical CO2 refrigeration cycle with an ejector. After modeling thermodynamic equations of elements and considering optimization parameters of emerging temperature of gas of cooler (Tgc) , emerging pressure of cooler's gas (Pgc) , and evaporative temperature (Tevp) , optimization of target function is done. Target function indicates total expenses of the system during a year which is consisted of expenses of entering exergy and spending on the system's equipment. Optimized amplitude of decision variables are gained by the balance between the entering exergy and yearly initial capital investing. Results indicate reduction in yearly total expenses of system (34%) and enhancement in thermodynamic functionality coefficient and exergetic efficiency in optimum point toward end point.
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نویسندگان
Ali Behbahani-nia
Mechanical Engineering Department, K.N. Toosi University of Technology Tehran, Tehran, Iran
Saeed Shams
Mechanical Engineering Department, K.N. Toosi University of Technology Tehran, Tehran, Iran