کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4915886 1428085 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of ejector geometries on performance of ejector-expansion R410A air conditioner considering cooling seasonal performance factor
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
Effects of ejector geometries on performance of ejector-expansion R410A air conditioner considering cooling seasonal performance factor
چکیده انگلیسی
The objective of this study was to investigate the effects of ejector geometries on the performance of an ejector-expansion air conditioner (EEAC) considering the cooling seasonal performance factor (CSPF). The performance of the EEAC using R410A was measured and analyzed by varying the compressor speed, outdoor-bin temperature, operating pressures, nozzle-throat diameter, and mixing-section diameter. The EEAC in the medium-capacity mode exhibited maximum coefficient of performance (COP) improvement, i.e., 7.5%, over the baseline (conventional) cycle. The optimum mixing-section diameter was determined to be 9 mm based on the CSPF. In addition, the optimum mixing-section diameter increased with an increase in the annual average outdoor temperature. The CSPF of the EEAC with the optimized mixing-section diameter improved in the range of 16.0-20.3% over the baseline cycle depending on the climatic conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 205, 1 November 2017, Pages 761-768
نویسندگان
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