کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
6684662 501865 2016 12 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Feasibility of ground coupled heat pumps in office buildings: A China study
ترجمه فارسی عنوان
امکان پمپ های گرمای متصل شده به زمین در ساختمان های اداری: مطالعه چین
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کلمات کلیدی
پمپ حرارتی همراه، منطقه آب و هوا ساختمان اداری، بهره وری عملیاتی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی
Ground coupled heat pumps (GCHPs) have been widely applied in China due to its environmental friendliness and energy efficiency. However, it may not be appropriate in all geographical areas because a variety of factors (e.g. original soil temperature, peak cooling and heating load, and running time) vary significantly. Typical office buildings were selected from five cities that are located in different climatic regions. The QUick Energy Simulation Tool (e-QUEST) was utilized to simulate the cooling and heating load. Similarly, the Transient System Simulation Program (TRNSYS) was employed to simulate the 20-year variation of the average soil temperature and the Coefficient of Performance (COP) of GCHP units. Consequently, the feasibility of the GCHPs in different regions was analyzed. The results show that GCHP system is feasible in severe cold B regions such as Shenyang and cold regions such as Beijing as both cold and heat sources because of its energy efficiency. From the economy and operation performance's perspective, GCHP system is not feasible in severe cold A regions such as Harbin; hot-summer and cold-winter regions such as Nanjing; and hot-summer and warm-winter region such as Guangzhou. This is due to the poor energy efficiency of the system, mainly attributed to a large gap between cumulative energy consumption for cooling and for heating. Comprehensive analysis of experiment results showed that the GCHP system of case building in cold region can operate stably in long term with a high efficiency when the ratio of annual cumulative cooling energy consumption to annual cumulative heating energy consumption ranges from 0.2:1 to 5:1. In severe cold B regions, GCHP system can operate stably when the ratio of annual cumulative cooling energy consumption to annual cumulative heating energy consumption ranges from 1:1 to 7:1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 162, 15 January 2016, Pages 266-277
نویسندگان
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