Study And Experimental Analysis Of Horizontal Ground Source Heat Pump System

1Thermal Engineering, IES College of Tech. Bhopal, Madhya Pradesh, India. 2Assistant Professor, Dept. of Mechanical Eng., IES College of Tech. Bhopal, Madhya Pradesh, India. ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract In modern life as we seen that the requirement of space heating and cooling is growing very fast. As a renewable energy technology, the ground source heat pump system plays an important role for the fulfill the requirement. The ground source heat pump system (GSHPs) also called as the geothermal heat pump system. Ground source heat pump system is highly efficient as compared to other conventional heat pumps. It absorbs heat from underground by pumping water through it. The heat pump then increases the temperature, and the heat is used to provide home heating. The pump needs electricity to run, but the idea is that it uses less electrical energy than the heat is produced. The heat pump performs the same role as a boiler does in a central heating system, but it uses ambient heat from the ground rather than burning fuel to generate heat. GSHP are receiving increasing interest because of their potential to reduce primary energy consumption and thus reduce emissions of greenhouse gases. This paper investigates the performance characteristics of Ground Source Heat Pump system, concentrating on thermodynamic analysis with R-22 as the refrigerant for a heating mode. The main purpose of this paper is to study the energetic potential of the deployment in Dhanbad, India of the Ground Source Heat Pump (GSHP) system for heating mode application. Therefore, a GSHP system using horizontal Ground Heat Exchanger (GHE) has been installed and experimented in BIT Sindri, Dhanbad, India. In the present study based upon the measurements made in the heating mode from the 5th of December till 10th of March 2016-2017, the heat extraction rate from the soil has been found to be, on an average, 2.53 KW. The heating coefficient of performance of the heat pump (COP)HP fluctuates between 2.11 to 3.13. The result shows that overall COP values for the complete system are 5–20% lower than the COP of heat pump. It may be concluded that these performance parameters obtained from the present study are fairly close to those reported by Bi et al. (2004).It is expected that the model present here would be beneficial to everyone dealing with the design, simulation and testing of GSHP systems in future.