GEO2D - Two-Dimensional Computer Model of a Ground Source Heat Pump System


This file contains a zipped file that contains many files required to run GEO2D. GEO2D is a computer code for simulating ground source heat pump (GSHP) systems in two-dimensions. GEO2D performs a detailed finite difference simulation of the heat transfer occurring within the working fluid, the tube wall, the grout, and the ground. Both horizontal and vertical wells can be simulated with this program, but it should be noted that the vertical wall is modeled as a single tube. This program also models the heat pump in conjunction with the heat transfer occurring. GEO2D simulates the heat pump and ground loop as a system. Many results are produced by GEO2D as a function of time and position, such as heat transfer rates, temperatures and heat pump performance. On top of this information from an economic comparison between the geothermal system simulated and a comparable air heat pump systems or a comparable gas, oil or propane heating systems with a vapor compression air conditioner. The version of GEO2D in the attached file has been coupled to the DOE heating and cooling load software called ENERGYPLUS. This is a great convenience for the user because heating and cooling loads are an input to GEO2D. GEO2D is a user friendly program that uses a graphical user interface for inputs and outputs. These make entering data simple and they produce many plotted results that are easy to understand. In order to run GEO2D access to MATLAB is required. If this program is not available on your computer you can download the program MCRInstaller.exe, the 64 bit version, from the MATLAB website or from the Geothermal Data Repository. This is a free download which will enable you to run GEO2D.

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Additional Info

DOE Project Name: Recovery Act: Finite Volume Based Computer Program for Ground Source Heat Pump Systems
DOE Project Number: EE0002805
DOE Project Lead: Arlene Anderson
DOI: 10.15121/1252460
Last Updated: a month ago
Data from June, 2013
Submitted Jul 24, 2013


Wright State University



Publicly accessible License 


James Menart
Wright State University


geothermal, ground source heat pump system, computer code, vertical geothermal well, horizontal geothermal well, GEO2D, finite difference, computer model, heat pumps, GSHP, software, MATLAB


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