A transient quasi-3D entire time scale line source model for the fluid and ground temperature prediction of vertical ground heat exchangers (GHEs)

2016 ◽  
Vol 170 ◽  
pp. 65-75 ◽  
Author(s):  
Linfeng Zhang ◽  
Quan Zhang ◽  
Gongsheng Huang
Keyword(s):  
Time Scale ◽  
Heat Exchangers ◽  
Line Source ◽  
Source Model ◽  
Ground Temperature ◽  
Temperature Prediction ◽  
Ground Heat Exchangers ◽  
Scale Line ◽  
Vertical Ground ◽  
Line Source Model

Finite line-source model for borehole heat exchangers: effect of vertical temperature variations

Geothermics ◽  
2009 ◽  
Vol 38 (2) ◽  
pp. 263-270 ◽  
Author(s):  
Tatyana V. Bandos ◽  
Álvaro Montero ◽  
Esther Fernández ◽  
Juan Luis G. Santander ◽  
José María Isidro ◽  
...  
Keyword(s):  
Heat Exchangers ◽  
Line Source ◽  
Source Model ◽  
Vertical Temperature ◽  
Temperature Variations ◽  
Finite Line ◽  
Finite Line Source ◽  
Line Source Model ◽  
Borehole Heat Exchangers

Multilayer finite line source model for vertical heat exchangers

Geothermics ◽  
2014 ◽  
Vol 51 ◽  
pp. 406-416 ◽  
Author(s):  
Sherif L. Abdelaziz ◽  
Tolga Y. Ozudogru ◽  
C. Guney Olgun ◽  
James R. Martin
Keyword(s):  
Heat Exchangers ◽  
Line Source ◽  
Source Model ◽  
Vertical Heat ◽  
Finite Line ◽  
Finite Line Source ◽  
Line Source Model

A Numerical Simulation Method of the Ground Temperature for Multiple Ground Heat Exchangers

2012 ◽  
Vol 516-517 ◽  
pp. 131-134
Author(s):  
Jun Yong Sang ◽  
Dan Zhang ◽  
Fa Hui Wang
Keyword(s):  
Heat Exchangers ◽  
Simulation Method ◽  
Source Model ◽  
Ground Temperature ◽  
Analytical Models ◽  
Load Factor ◽  
Time Step ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Heat Exchangers

This paper presented the numerical simulations on Multiple Ground Heat Exchangers. The two coupled solutions were solved iteratively at each time step, and the simulated ground temperature was calibrated using a cylindrical source model by adjusting the grid spacing and adopting a load factor of 1.047 in the difference equation. With constant load applied to a single tube. The ground temperature profiles were not similar at different distances from the tube. The introduction of time schedule revealed a discrepancy between the load applied to the ground heat exchanger and that transferred from the tube to the ground, which was usually assumed to be the same when using analytical models. Hence, in designing a large Ground source heat pump system, the present method should give more precise results in dynamic simulation.

A moving finite line source model to simulate borehole heat exchangers with groundwater advection

2011 ◽  
Vol 50 (12) ◽  
pp. 2506-2513 ◽  
Author(s):  
Nelson Molina-Giraldo ◽  
Philipp Blum ◽  
Ke Zhu ◽  
Peter Bayer ◽  
Zhaohong Fang
Keyword(s):  
Heat Exchangers ◽  
Line Source ◽  
Source Model ◽  
Finite Line ◽  
Finite Line Source ◽  
Line Source Model ◽  
Borehole Heat Exchangers
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