کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
264545 504104 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modeling solar-driven ejector refrigeration system offering air conditioning for office buildings
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
Modeling solar-driven ejector refrigeration system offering air conditioning for office buildings
چکیده انگلیسی

A lumped method combined with dynamic model is proposed for use in investigating the performance and solar fraction of a solar-driven ejector refrigeration system (SERS) using R134a, for office air conditioning application for buildings in Shanghai, China. Classical hourly outdoor temperature and solar radiation model were used to provide basic data for accurate analysis of the system performance. Results indicate that during the office working-time, i.e., from 9:00 to 17:00, the average COP and the average solar fraction of the system were 0.48 and 0.82 respectively when the operating conditions were: generator temperature (85 °C), evaporator temperature (8 °C) and condenser temperature varying with ambient temperature. Compared with traditional compressor based air conditioner, the system can save upto 80% electric energy when providing the same cooling capacity for office buildings. Hence, the system offers a good energy conservation method for office buildings.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy and Buildings - Volume 41, Issue 2, February 2009, Pages 175–181
نویسندگان
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