کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5017211 1466392 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Second law analysis of an automotive air conditioning system using HFO-1234yf, an environmentally friendly refrigerant
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Second law analysis of an automotive air conditioning system using HFO-1234yf, an environmentally friendly refrigerant
چکیده انگلیسی


- Exergy analysis of an automotive air conditioning system is done using HFO-1234yf.
- HFO-1234yf provides higher exergy efficiency compared to HFC-134a refrigerant.
- Maximum entropy generation and exergy destruction occur in the compressor.

In this paper, a comparative study of the second law of thermodynamics is presented to determine the possibility of using HFO-1234yf, an environmentally friendly refrigerant, as a drop-in replacement of HFC-134a in automotive air conditioning system. For the thermodynamic analysis, a computer program is written to simulate the operating conditions of automobile air conditioning system. The thermodynamic properties of the refrigerants are extracted from the REFPROP 8.0 software. For calculating the coefficient of performance (COP), exergy destruction, exergy efficiency and entropy generation, computational models are used to evaluate the effects of different parameters on their changes. It is found that using HFO-1234yf as the air conditioning refrigerant leads to higher exergy efficiency compared to HFC-134a. Also, maximum entropy generation and exergy destruction occur in the compressor. The exergy destruction and entropy generation of the cycle components are less in the case of using HFO-1234yf refrigerant instead of HFC-134a.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Refrigeration - Volume 73, January 2017, Pages 134-143
نویسندگان
, , , , , ,