کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7056177 | 1458049 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A novel composite-medium solution for pile geothermal heat exchangers with spiral coils
ترجمه فارسی عنوان
یک راه حل مرکب برای مبدل های حرارتی جوی گرم کننده با شمع با کویل مارپیچی
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کلمات کلیدی
محیط کامپوزیت مبدل حرارتی زمینی، شمع انرژی، سیستم پمپ گرمای زمینی، کویل اسپیرال،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
This paper presents a new transient analytical model for describing the heat transfer process of pile geothermal heat exchangers with spiral coils (PGHE-SC). A numerical model has been established based on the finite element method to validate this new analytical model, which shows a good agreement between the two models. The temperature responses for different heat transfer conditions were calculated and are discussed. When the thermal conductivities of pile is twice as the one of soil, the dimensionless temperature at middle of the pile is 0.3832 which almost twice as the temperature response of homogeneous case. The results indicate that the thermal difference between pile and soil is an important factor influencing PGHE-SC simulation/design. As this new model not only successfully takes the limited length of an energy pile into consideration but also distinguishes thermal properties in its modeling process, it may provide a desirable and better design tool for the PGHE-CS.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 93, February 2016, Pages 760-769
Journal: International Journal of Heat and Mass Transfer - Volume 93, February 2016, Pages 760-769
نویسندگان
Deqi Wang, Lin Lu, Ping Cui,