کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7044996 | 1457088 | 2018 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Energy and exergy analysis of an integrated organic Rankine cycle-vapor compression refrigeration system
ترجمه فارسی عنوان
تجزیه و تحلیل انرژی و اکسرژی سیستم یکپارچه سیستم رطوبتی فشرده سازی چرخه ی رولینین یکپارچه
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کلمات کلیدی
چرخه تبرید فشرده، چرخه رنکین ارگانیک، مایع کار، چرخه ی یکپارچه،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
In the present study, the performance of an integrated organic Rankine cycle-vapor compression refrigeration (ORC-VCR) system is investigated from the viewpoint of energy and exergy analysis. The system performance was represented by system coefficient of performance (COPS), system exergy efficiency (ηe,sys), turbine pressure ratio (TPR), and total mass flow rate of the working fluid for each kW cooling capacity (mÌtotal). Many common and new hydrocarbons, hydrofluorocarbons, fluorocarbons, hydrofluoroethers, and hydrofluoroolefins were suggested as working fluids. The influences of various parameters such as the boiler, condenser, and evaporator temperatures, along with compressor and turbine isentropic efficiencies, on the system performance were also investigated. The results revealed that the best system performance was attained with the uppermost critical temperature dry working fluid. Among all suggested candidates, R602 is shown to be the most suitable working fluid for the ORC-VCR system from system performance and environmental issues viewpoints. However, due to its flammability, extra precautions should be taken. The highest COPS, ηe,sys, TPR, and the corresponding mÌtotal using R602 are 0.99, 53.8%, 12.2, and 0.005â¯kgâ¯sâ1 kWâ1, respectively at a condenser temperature of 25â¯Â°C and the typical values for the rest parameters.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 141, August 2018, Pages 697-710
Journal: Applied Thermal Engineering - Volume 141, August 2018, Pages 697-710
نویسندگان
B. Saleh,