کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10226473 1701273 2018 27 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Theoretical investigation on the performance of a modified refrigeration cycle using binary zeotropic hydrocarbon mixture R170/R290
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Theoretical investigation on the performance of a modified refrigeration cycle using binary zeotropic hydrocarbon mixture R170/R290
چکیده انگلیسی
In this study, a modified refrigeration cycle (MRC) using refrigerant mixture R170/R290 was proposed for applications in low-temperature freezers. Different from traditional auto-cascade cycle (ARC), additional recuperator and expansion valve are set between condenser and separator to realize phase separation at an intermediate pressure. The MRC can significantly improve volumetric refrigeration capacity (qev) and the coefficient of performance (COP) especially in low evaporating temperature condition. As evaporating temperature is set at −60°C, using MRC system can acquire 18% and 35% COP and qev improvements, and the compression ratio in MRC reduced 23% in comparison to ARC. In general, decreasing both separating temperature and quality of condenser outlet will benefit the performance of MRC. Besides, there exist an appropriate mixture quality at evaporator outlet to obtain the best COP and qev under the given condition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Refrigeration - Volume 94, October 2018, Pages 111-117
نویسندگان
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