Modeling and Evaluating a New Solar-Geothermal Trigeneration with Nanofluid from Exergy and Environmental Impact Concepts
سال انتشار: 1395
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 440
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شناسه ملی سند علمی:
IRCEM01_141
تاریخ نمایه سازی: 25 آذر 1395
چکیده مقاله:
This research deals with a new solar-geothermal driven trigeneration system based on organic working fluid, namely R۴۲۳A and R۱۲۳۴yf. In the solar subsystem, copper oxide CuO/water nanofluid is applied as heat transfer fluid inside the flat plat solar collectors. The proposed system is modeled from the exergy and exergoenvironmental concepts. Sensitivity analysis is carried out for exergetic and environmental criteria. The major parameters are selected as the decision variables of the desired system. Results of modeling show that R۱۲۳۴yf with high exergetic and low environmental impact is the convenient working fluid in trigeneration. Sensitivity analysis outcomes indicate that the increment of nanoparticles, area ratio of ejector and pressure drop of ejector have a positive effect while the increment of turbine inlet mass flow rate, turbine inlet pressure and turbine outlet temperature have a negative effect on both exergetic and environmental criteria of system.
کلیدواژه ها:
نویسندگان
Mansoure Chavoshi
Dep. of Mechanical Engineering, Faculty of Engineering & Technology, Alzahra University
Fateme Ahmadi Boyaghchi
Dep. of Mechanical Engineering, Faculty of Engineering & Technology, Alzahra University