scholarly journals Experimental study of the performance of a vertical and a horizontal ground loops coupled to a ground source heat pump system

2021 ◽  
Author(s):  
Waleed S. Alzahrani
Keyword(s):  
Heat Pump ◽  
Ground Source Heat Pump ◽  
Cooling Mode ◽  
Pump System ◽  
Heat Pump System ◽  
Heating And Cooling ◽  
Ground Source ◽  
Vertical Ground ◽  
Set Up ◽  
Heating Mode

The performance of vertical and horizontal ground loops coupled to a Ground-Source Heat Pump (GSHP) was investigated under four different scenarios. For this purpose, an experimental set-up was designed and constructed at the Archetype Sustainable houses in Vaughan, Ontario, Canada. In the first two tests, the two vertical ground loops coupled to the GSHP were tested in heating, and cooling modes. In heating mode, the GSHP COP ranged between 2.7 and 3.15. In cooling mode, the GSHP performed better than the heating mode with COP range of 3.75 and 5.4. In the last two tests, two scenarios were tested to compare the horizontal and the vertical ground loops in cooling mode. In the first scenario, the ground loop flow was divided equally between the loops and the GSHP overall COP was 5.42. The last test used equal Reynolds number in both loops and the GSHP overall COP was 5.36.

scholarly journals Experimental study of the performance of a vertical and a horizontal ground loops coupled to a ground source heat pump system

2021 ◽  
Author(s):  
Waleed S. Alzahrani
Keyword(s):  
Heat Pump ◽  
Ground Source Heat Pump ◽  
Cooling Mode ◽  
Pump System ◽  
Heat Pump System ◽  
Heating And Cooling ◽  
Ground Source ◽  
Vertical Ground ◽  
Set Up ◽  
Heating Mode

The performance of vertical and horizontal ground loops coupled to a Ground-Source Heat Pump (GSHP) was investigated under four different scenarios. For this purpose, an experimental set-up was designed and constructed at the Archetype Sustainable houses in Vaughan, Ontario, Canada. In the first two tests, the two vertical ground loops coupled to the GSHP were tested in heating, and cooling modes. In heating mode, the GSHP COP ranged between 2.7 and 3.15. In cooling mode, the GSHP performed better than the heating mode with COP range of 3.75 and 5.4. In the last two tests, two scenarios were tested to compare the horizontal and the vertical ground loops in cooling mode. In the first scenario, the ground loop flow was divided equally between the loops and the GSHP overall COP was 5.42. The last test used equal Reynolds number in both loops and the GSHP overall COP was 5.36.

scholarly journals Performance analysis of a two-stage variable capacity air source heat pump and a horizontal loop coupled ground source heat pump system

2021 ◽  
Author(s):  
Amir Alizadeh Safa
Keyword(s):  
Heat Pump ◽  
Ground Source Heat Pump ◽  
Outdoor Temperature ◽  
Cooling Mode ◽  
Two Stage ◽  
Pump System ◽  
Air Source Heat Pump ◽  
Ground Source ◽  
Variable Capacity ◽  
Heating Mode

The thermal performance of a new two-stage variable capacity air source heat pump (ASHP) and a horizontal ground loop ground source heat pump (GSHP) was investigated side-by-side at the Archetype Sustainable Twin Houses located in Toronto, Canada. The heat pumps were tested in cooling mode, as well as heating mode under extreme winter conditions. In cooling mode, the ASHP COP ranged from 4.7 to 5.7 at an outdoor temperature of 33 degrees C and 16 degrees C respectively, while the GSHP COP ranged from 4.9 (at an ELT of 8.5 degrees C and EST of 19.2 degrees C) to 5.6 (at an ELT of 12. 4 degrees C and EST of 17.8 degrees C). In heating mode, the ASHP COP ranged from 1.79 to 5.0 at an outdoor temperature of -19 degrees C and 9 degrees C respectively, while the GSHP COP ranged from 3.05 (at an ELT of 44.4 degrees C and an EST of 2.7 degrees C) to 3.44 (at an ELT of 41.5 degrees C and an EST of 5.48 degrees C) during the earlier winter test period. Data extrapolation and energy simulation was also performed to predict annual heat pump performance in Toronto as well as other Canadian regions.

Ground Source Heat Pump System: A Review of Current Status in China

2014 ◽  
Vol 7 (1) ◽  
pp. 129-134 ◽  
Author(s):  
Rong Wan ◽  
Dequan Kong ◽  
Hong Guo
Keyword(s):  
Heat Pump ◽  
Energy Use ◽  
Current Status ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Heat Pump System ◽  
Heating And Cooling ◽  
Urban Buildings ◽  
Ground Source ◽  
Future Work

This paper discusses the research and the state-of-art practices on ground source heat pump systems (GSHP) in China. It introduces the Chinese patents on GSHP. The GSHP development policies of China, including incentive mechanism, relevant codes and regulations, are also introduced. In addition, this paper discusses and summarizes the shortages and imperfects of the current research of the GSHP system and gives some recommendations for future work. At last, the authors give some advice for the development of ground source heat pump. For more reliable statistics on geothermal energy use, the obligation to supply an installation report to the relevant authority should also be imposed on the rural buildings besides urban buildings. GSHP systems are suitable for heating and cooling of buildings and so could play a significant role in reducing CO2 emissions.

Preliminary study of a closed loop vertical ground source heat pump system for an experimental pilot plant (Rome, Italy)

2021 ◽  
Author(s):  
Anna Carmela Violante ◽  
Marco Proposito ◽  
Filippo Donato ◽  
Giambattista Guidi ◽  
Luca Maria Falconi
Keyword(s):  
Heat Pump ◽  
Pilot Plant ◽  
Closed Loop ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source ◽  
Vertical Ground ◽  
Preliminary Study
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