کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
243777 501936 2011 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Energy and cost savings in household refrigerating appliances: A simulation-based design approach
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
Energy and cost savings in household refrigerating appliances: A simulation-based design approach
چکیده انگلیسی

In this study a novel design methodology for household refrigeration systems focused on both energy savings and cost reduction is presented and evaluated. Mathematical models were put forward for each of the system components and used to simulate the energy performance of the entire refrigeration system. The system simulation model was validated against experimental data obtained for a single-door 300-l vertical freezer. It was found that the model predictions for the energy consumption, cooling capacity and runtime ratio deviated from the experimental data within an error band of ±10%. An optimization algorithm was built upon the simulation model to size the condenser and evaporator heat transfer areas, and also the cabinet insulation thickness aiming at minimizing the total cost of the refrigeration system for a target energy consumption. A trade-off relation between the minimum cost and the minimum energy consumption was achieved, bringing about a system configuration that consumes 14% less energy than the baseline system if the total cost remains unchanged. The effect of the compressor stroke volume and efficiency on the minimum cost was also taken into account. It was demonstrated that the refrigerator/freezer becomes less costly in cases where highly efficient compressors are used in low energy consumption refrigerating appliances.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 88, Issue 9, September 2011, Pages 3051–3060
نویسندگان
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