کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8088694 | 1521897 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An applicable design method for horizontal spiral-coil-type ground heat exchangers
ترجمه فارسی عنوان
یک روش طراحی مناسب برای مبدلهای حرارتی زمینی به صورت افقی مارپیچ-کویل
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
ژئوشیمی و پترولوژی
چکیده انگلیسی
The ground-source heat pump (GSHP) system using a horizontal ground heat exchanger (GHE) can be employed to reduce the installation cost and obtain a balance between efficiency and costs. Among the different types of horizontal GHEs, a spiral-coil-type GHE is one of the advantageous configurations in terms of thermal performance. However, there is no satisfactory guideline to design the horizontal spiral-coil GHEs, though design methods for other types of horizontal GHEs exist. Hence, in this study, a design method is proposed for the horizontal spiral-coil GHEs by modifying the boundary conditions of an existing equation. To verify the applicability of the proposed design equation, a laboratory thermal response test was conducted to validate the finite element model. Then, the validated numerical model was utilized for a computational fluid dynamics (CFD) simulation on an arbitrary building wherein a GSHP system with a horizontal spiral-coil GHE is operated. The entering water temperature (EWT) of 32.09â¯Â°C from the simulation result was lower than the design EWT criteria of 32.2â¯Â°C, implying that the thermal performance of the GHE for a month of operation is sufficient to cover the building load. The result provides the applicability of the proposed design method.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Geothermics - Volume 72, March 2018, Pages 338-347
Journal: Geothermics - Volume 72, March 2018, Pages 338-347
نویسندگان
Min-Jun Kim, Seung-Rae Lee, Seok Yoon, Jun-Seo Jeon,