Cooling dominated Hybrid Ground Source Heat Pump System application

A cooling dominated Hybrid Ground Source Heat Pump System (HGSHPS) is utilized to cover the energy demands of an office building. The energy demands are computed by TRNSYS 16.1, considering two different scenarios, based on different glazing properties. A ground loop consisted of a rectangular field of 15 borehole heat exchangers is utilized to cover building loads. GLD 2009 sizing software calculates borehole length setting two different fixed temperatures for the heat carrier fluid entering heat pump, 30°C and 33°C. Assuming different cooling tower capacity, the desired flow rate is estimated for a cooling range of 5.7°C (the difference between the water inlet and outlet temperature). A MATLAB code is created to calculate the required pressure drop per packing height of cooling tower for four packings in different operating conditions.

[1]  Stephen P. Kavanaugh,et al.  Ground Source Heat Pumps : Design of Geothermal Systems for Commercial and Institutional Buildings , 1997 .

[2]  Umberto Desideri,et al.  Feasibility study and numerical simulation of a ground source heat pump plant, applied to a residential building , 2011 .

[3]  Wenjie Gang,et al.  Predictive ANN models of ground heat exchanger for the control of hybrid ground source heat pump systems , 2013 .

[4]  Jinggang Wang,et al.  Study on hybrid ground-coupled heat pump system for air-conditioning in hot-weather areas like Hong Kong , 2010 .

[5]  Qian Fan,et al.  Multi-source information fusion based fault diagnosis of ground-source heat pump using Bayesian network , 2014 .

[6]  A. F. Mills.  Basic Heat and Mass Transfer , 1999 .

[7]  A. Stegou-Sagia.  An experimental study and a computer simulation of heat and mass transfer for three‐dimensional humidification processes , 1996 .

[8]  Mi Sandar Mon,et al.  Heat Exchanger Design , 2008 .

[9]  M. Boumaza,et al.  Thermal performances investigation of a wet cooling tower , 2007 .

[10]  Farhad Gharagheizi,et al.  Experimental study on the performance of mechanical cooling tower with two types of film packing , 2007 .

[11]  Mostafa Nejatolahi,et al.  Thermodynamic and thermoeconomic optimization of a cooling tower-assisted ground source heat pump , 2011 .

[12]  Siaw Kiang Chou,et al.  Efficient energy performance of large commercial buildings in tropical climates , 1994 .

[13]  R. E. Treybal.  Mass-Transfer Operations , 1955 .

[14]  C. Geankoplis,et al.  Transport processes and separation process principles : (includes unit operations) , 2003 .

[15]  Xiaowei Xu.  Simulation of Hybrid Ground Source Heat Pump Systems and Experimental Validation , 2006 .

[16]  Hongxing Yang,et al.  Vertical-borehole ground-coupled heat pumps: A review of models and systems , 2010 .

[17]  Georgios A. Florides,et al.  Ground heat exchangers—A review of systems, models and applications , 2007 .

[18]  Giovanna Barigozzi,et al.  Wet and dry cooling systems optimization applied to a modern waste-to-energy cogeneration heat and power plant , 2011 .