Experimental analysis of a direct expansion geothermal heat pump in heating mode

2014 ◽  
Vol 75 ◽  
pp. 290-300 ◽  
Author(s):  
Jean-Louis Fannou ◽  
Clément Rousseau ◽  
Louis Lamarche ◽  
Kajl Stanislaw
Keyword(s):  
Heat Pump ◽  
Experimental Analysis ◽  
Direct Expansion ◽  
Geothermal Heat ◽  
Geothermal Heat Pump ◽  
Heating Mode

Development of a Fast Design Method for Direct Expansion Geothermal Heat Pump in Heating Mode

2015 ◽  
Author(s):  
Rousseau Clément ◽  
Jean-Louis Comlan Fannou ◽  
Louis Lamarche ◽  
Stanislaw Kajl ◽  
Mohamed Ouzzane
Keyword(s):  
Heat Pump ◽  
Design Method ◽  
Direct Expansion ◽  
Geothermal Heat ◽  
Geothermal Heat Pump ◽  
Heating Mode

Cooling mode experimental analysis of a direct expansion geothermal heat pump with a control depending on the discharge pressure

2019 ◽  
Vol 160 ◽  
pp. 113955 ◽  
Author(s):  
Jean-Louis Comlan Fannou ◽  
Louis Lamarche ◽  
Clarence Semassou Guy ◽  
Kajl Stanislaw ◽  
Antoine Vianou
Keyword(s):  
Heat Pump ◽  
Experimental Analysis ◽  
Direct Expansion ◽  
Cooling Mode ◽  
Geothermal Heat ◽  
Geothermal Heat Pump ◽  
Discharge Pressure

scholarly journals Modeling and Experimental Validation of a Transient Direct Expansion Heat Pump

2017 ◽  
Vol 6 (2) ◽  
pp. 145 ◽  
Author(s):  
Clément Rousseau ◽  
Jean-Louis Comlan Fannou ◽  
Louis Lamarche ◽  
Stanislaw Kajl
Keyword(s):  
Heat Pump ◽  
Experimental Validation ◽  
Heat Extraction ◽  
Direct Expansion ◽  
Geothermal Heat ◽  
Transient Model ◽  
Ground Source ◽  
Geothermal Heat Pump ◽  
Pump Modeling ◽  
Heating Mode

Geothermal heat pump technology is currently one of the most interesting technologies used to heat buildings. There are two designs used in the industry: geothermal heat pump using a secondary ground loop and Direct Expansion (DX) ground source heat pump. The latter is less used, possibly because less research has been carried out for the design of this kind of heat pump. In this paper, a transient model using the Comsol Multiphysic of a DX ground heat pump is presented in heating mode with R22, and a comparison with experimental results is presented with a 24-hour test. It is shown that the model was adequately validated by our experiment with only a maximum difference of 15%. Following this validation, a parametric analysis was realised on the geometry of the borehole. This study concluded that to have the best heat extraction of the ground, the pipes shank spacing need to be important without increasing the borehole diameter.Keywords: Direct Expansion geothermal heat pump, Modeling, R22Article History: Received January 16th 2017; Received in revised form May 28th 2017; Accepted June 6th 2017; Available onlineHow to Cite This Article: Rousseau, C., Fannou, J.L.C., Lamarche, L. and Kajl, S. (2017) Modeling and Experimental Validation of a Transient Direct Expansion Heat Pump. International Journal of Renewable Energy Develeopment, 6(2), 145-155.https://doi.org/10.14710/ijred.6.2.145-155

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