It is quite easy to open an old v3 project and assign any hourly data for any load to investigate the effect of base or peak loads. This means that it handles any loads for cooling, heating, and DHW (Domestic Hot Water), with a resolution of one hour. EED now calculates the response due to any hourly load variation.The borehole pattern may be chosen at will from a database of 800 basic configurations. The borehole thermal resistance is calculated in the program, using the borehole geometry, grouting material, pipe material and geometry. The program has an easy-to-use interface. A printed output report and output graphical processing are provided. different methods of establishing a monthly load profile. The monthly average heating and cooling loads are the input data. Databases provide the key ground parameters (thermal conductivity and specific heat) as well as properties of pipe materials and heat carrier fluids. The g-function values obtained from the numerical simulations have been stored in a data file, which is accessed for rapid retrieval of data by EED.Ĭalculation of brine temperatures is done for monthly heat/cool loads. In case of graded boreholes there is also a dependency on the tilt angle. Those g-functions depend on the spacing between the boreholes at the ground surface and the borehole depth. This sustainable technique can be used for cooling and heating of houses, cooling of telecommunication switchboards, etc.ĮED is based on parameter studies with a numerical simulation model (SBM) resulting in analytical solutions of the heat flow with several combinations for the borehole pattern and geometry (g-functions). This is a renewable, environmentally friendly energy source. In cooling mode, the process is reversed. The fluid is then re-warmed as it flows through the ground. In ground source heat pump system, heat is extracted from the fluid in the ground connection by a geothermal heat pump and distributed to the building.
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