![]() For larger jobs, an in situ test is recommended, using the in situ methodology developed at Oklahoma State University. GLHEPRO has a small database of ground thermal properties for a few different ground types. For other programs, the loads must be typed in manually. GLHEPRO has an interface to the above-named programs which automates the data transfer. These are obtainable from programs such as HVAC Load Calculations for Windows, Trane Systems Analyzer, and other similar programs. Monthly and monthly peak heating and cooling loads on the heat pumps. GLHEPRO requires four basic sets of input data: on the validation of GLHEPro’s results as compared to an actual system and the ASHRAE Handbook Design Method. Xu and Spitler (2006) (pdf): discussion of the new GLHE model, which includes improved borehole thermal resistance calculations and consideration of thermal mass.Ī paper was published in 2015 by Cullin et al. Spitler to be the best currently available methodology.Ī technical paper describing GLHEPRO v3.0 (pdf): most of the discussion still applies to GLHEPRO v4.1. GLHEPRO is based on the methodology developed by Eskilson at the University of Lund in Sweden, considered by Dr. ![]() Sizing of hybrid ground source heat pump (HGSHP) systems by determination of the required borehole depth and necessary supplemental heat rejecter (cooling tower, fluid cooler) or heat extractor (boiler) size. ![]() ![]() Simulation (for up to 100 years) of ground loop heat exchangers to determine monthly average and peak heat pump entering and exiting fluid temperatures, as well as power consumption of the heat pump.ĭetermination of the required borehole depth to meet user-specified minimum and maximum heat pump entering fluid temperatures. The heat exchanger may be composed of any number of boreholes arranged in various configurations. While GLHEPRO may be used for residential system design, it is aimed at commercial systems. GLHEPRO was developed as an aid in the design of vertical borehole-type ground loop heat exchangers used in geothermal heat pump systems. ![]() You can download the GLHEPRO V5.0 User Manual here. GLHEPRO is used for designing ground loop heat exchangers for use with ground source heat pump systems.Ī description of the new features in GLHEPRO V5.0 is available here. ![]()
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