کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4926168 1363174 2017 43 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Theoretical and numerical study on performance of the air-source heat pump system in Tibet
ترجمه فارسی عنوان
نظری و عددی بر عملکرد سیستم پمپ گرمای هوا منبع در تبت
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
Air source heat pump (ASHP) technology is widely accepted for the merits of energy-saving and environmental protection, and has been served as the heating and cooling source in most part of China. This paper presents a numerical model to predict the performance of a typical ASHP system in Lhasa, the capital of Tibet Autonomous Region of China. The theoretical analysis shows that the occurrence of the frost is hard to be found on air-side heat exchanger due to the low relative humidity, which can improve the performance of the ASHP system. The numerical results show that the ambient air temperature and atmospheric pressure have a great effect on the system performance. For the case of without considering frosting problem, the COP of the system is reduced by 9.5%-12.5% than that for standard pressure (101.325 kPa). The heating capacity of the system is reduced by 16.2%-19.8% than that for standard pressure. For the case of considering frosting problem, the heating capacity and COP of the ASHP system in Lhasa are 37.5 kW and 1.98, respectively under the outdoor design temperature, which are almost same or higher than most cities in this study.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 114, Part B, December 2017, Pages 489-501
نویسندگان
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