کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5012623 1462815 2017 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Energetic and exergetic investigation of a novel solar assisted mechanical compression refrigeration system
ترجمه فارسی عنوان
تحقیقات انرژی و فیزیکی یک سیستم خنک کننده مکانیکی فشرده جدید با کمک خورشید
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
چکیده انگلیسی
The objective of this study is to present and to examine a novel solar assisted mechanical compression refrigeration system. Evacuated tube collectors are used in order to partially thermally compress the refrigerant, after the mechanical compressor. This design aims to reduce the electricity consumption using a renewable energy source, creating a sustainable system. The suggested design is analyzed parametrically in order to investigate its energetic and exergetic behaviour in various operating conditions and it is examined with EES (Engineering Equator Solver) in steady state conditions. The temperature levels in the evaporator and in the condenser, as well as the thermal compression fraction (expressed with the pressure ratio parameter), are the examined parameters. The final results proved that the optimum values of the pressure after the mechanical compressor is the 75% of the maximum pressure and for this case, energy savings from 15% to 25% can be achieved. Moreover, the specific collecting area is found to be relatively low, close to 2 m2/kW for the optimum cases. The final results proved that the new design leads to energy savings in all the examined cases and especially in cases with higher evaporating temperature levels, a fact that makes it ideal for space cooling applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Conversion and Management - Volume 147, 1 September 2017, Pages 1-18
نویسندگان
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