Study on finned pipe performance as a ground heat exchanger

2nd International Conference on Materials Science, Energy Technology and Environmental Engineering

材料科学;能源学;生态环境科学

Lin, Qinglong^1 ; Ma, Jinghui^2 ; Shi, Lei^3

Zhejiang Institute Geological Survey, Hangzhou, China^1

School of Civil Engineering and Architecture, Zhejiang Sci-Tech University, Hangzhou, China^2

LOOPMASTER ENERGY, Hangzhou, China^3

关键词: Cross sectional area;    Ground heat exchangers;    Heat exchange;    Pipe performance;    Simulation analysis;    Straight fins;    Thermal efficiency;    Thermal Performance;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/81/1/012120/pdf
DOI  :  10.1088/1755-1315/81/1/012120

来源: IOP

【 摘 要 】

The GHEs (ground heat exchangers) is an important element that determines the thermal efficiency of the entire ground-source heat-pump system. The aim of the present study is to clarify thermal performance of a new type GHE pipe, which consists straight fins of uniform cross sectional area. In this paper, GHE model is introduced and an analytical model of new type GHE pipe is developed. The heat exchange rate of BHEs utilizing finned pips is 40.42 W/m, which is 16.3% higher than normal BHEs, based on simulation analyses.