Thermodynamic analysis of a cascade refrigeration system
Publish place: Third National Conference and First International Conference on Applied Research in Electrical, Mechanical and Mechatronics Engineering
Publish Year: 1394
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ELEMECHCONF03_0335
تاریخ نمایه سازی: 9 مرداد 1395
Abstract:
A noble integration of a cascade refrigeration system with a two-stage compression chiller is proposed. The compression and the absorption systems have a cascade inter-cooler/evaporator and the compression system has two compressors working in series. This system runs by a driving unit which can be a micro-turbine or a solid oxide fuel cell. The system components are modeled and analyzed through the energy and exergy approaches. The performance parameters of the systems and the second law efficiency are calculated in different operating conditions. The results show that the maximum irreversibilities happen in the generator and the first stage compressor, and the total destruction is higher when a micro-gas turbine is used as the prime mover. It appears that energy and exergy are consumed up to 260% and 188% more efficiently in the proposed system compared to a traditional single-stage compression refrigeration system.
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Authors
S.M Hojjat Mohammadi
Department of Energy, Institute of Science, High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran;
Mehran Ameri
Department of Mechanical Engineering, Shahid Bahonar University, Kerman, Iran
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