کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6727310 1428916 2018 43 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation on the optimal cooling tower input capacity of a cooling tower assisted ground source heat pump system
ترجمه فارسی عنوان
بررسی ظرفیت ورودی برج خنک کننده برج خنک کننده به سیستم پمپ گرمای منبع زمین کمک می کند
کلمات کلیدی
پمپ حرارتی منبع زمین ترکیبی، آزمایشی شبیه سازی، برج خنک کننده، نسبت ظرفیت ورودی، استراتژی کنترل،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
Coupling auxiliary cooling devices with ground source heat pump (GSHP) systems in cooling dominated areas can effectively solve the ground thermal imbalance problem. However, the input capacity of the auxiliary heat rejecter directly affects the performance of such hybrid ground source heat pump (HGSHP) systems. This paper presents an investigation on the optimal cooling tower input capacity of a cooling tower assisted GSHP system through both experiments and simulations. The experiments were carried out based on a HGSHP system implemented in an office building and the experimental results were used to validate a numerical model. A simulation system of the cooling tower assisted GSHP system was then developed using TRNSYS and validated against the experimental data collected. The impacts of the cooling tower input capacity on the soil temperature and the system performance were simulated. The results showed that the soil heat accumulation could be effectively alleviated when the cooling tower input capacity ratio (CTICR) was greater than 50%. The optimal cooling tower input capacity was highly dependent on the operation scenario used. The optimal CTICR under two operation scenarios considered was around 54%, while that under the other operation scenarios was around 63%. The control strategy based on the fixed temperature difference between the cooling water leaving the heat pump and the ambient air dry-bulb temperature was found to be the optimal control strategy for the system studied.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy and Buildings - Volume 174, 1 September 2018, Pages 239-253
نویسندگان
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