کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
788884 1466463 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental study on the performance of a simultaneous heating and cooling multi-heat pump with the variation of operation mode
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Experimental study on the performance of a simultaneous heating and cooling multi-heat pump with the variation of operation mode
چکیده انگلیسی

The cooling load in the winter season becomes significant in commercial buildings and hotels because of the wide usage of office equipment and improved wall insulation. In this study, a simultaneous heating and cooling multi-heat pump having four indoor units and an outdoor unit was designed and tested in five operation modes: cooling-only, heating-only, cooling-main, heating-main, and entire heat recovery. The performance of the system with R410a was optimized by adjusting the system's control parameters. In the cooling-main mode, the rate of the bypass flow to the heating-operated indoor unit was optimized by controlling the EEV opening of the outdoor unit. In the heating-main mode, the mass flow rate to the cooling-operated indoor unit was optimized by adjusting the EEV opening in the outdoor unit. In the entire heat recovery mode, the compressor speed was controlled to improve the system COP with appropriate heating and cooling capacities.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Refrigeration - Volume 32, Issue 6, September 2009, Pages 1452–1459
نویسندگان
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