GLHEPRO SUpport & FAQs

This is an issue with some computers running Windows XP or Windows 2000. Either certain system files do not exist (or are out of date), or the installer is having problems writing temporary files. To correct this, download the replacement setup.lst file for the installer. Use this file to replace the one from the installer, and run the installer again.

***At this time, there are some unresolved site issues that are preventing access to the setup.lst file. If you think you need this file, please email glhepro@okstate.edu to request the file.**

The installer really doesn't need to update these files, although it may think it does. You will see three options: Abort, Retry, and Ignore. Click Retry a couple of times, and if the error keeps repeating, click Ignore. GLHEPRO can be installed successfully without updating these files.

This is a known issue when sizing a hybrid system in English units. The outputs are converted into SI units to write the output file, but are not properly converted back before displaying the results window. The results shown when the output file is not written are correct. This will be fixed in a future GLHEPRO update. [This error has been fixed in GLHEPro V4.1.4]

It is worth noting, though, that the HVACSIM+ output file option exists mostly to expedite certain research efforts. Most users will never need this option.

The first thing to do is make sure all of your inputs are numerical values. GLHEPro V4.1.0 -V4.1.4 may encounter errors while generating the g-functions for large custom rectangular borehole arrays. You will only see this problem if you are using a "Build your own" rectangular borehole configuration. This problem is easy to fix; just e-mail glhepro@okstate.edu and we can send you the missing files that are need for the calculations.

This is a display problem only and will not affect your calculations. The value you most recently accepted for borehole pipe diameter will be used in the calculations.

Because GLHEPro does not have Administrator rights to save files in Program Files it puts them in a Virtual Store that can be found programmatically in the original save location. If you want to find the files outside GLHEPro go to the 'C:\Users\'YourUserName'\AppData\Local\VirtualStore\Program Files (x86)' file directory.

If you have a valid license for GLHEPro V4.0 or V4.1, the current update, v4.1.6 can be received by emailing glhepro@okstate.edu and requesting a link to the latest update. The updates are sent electronically, and you will have to un-install and re-install the program. So long as you are using the same computer, your previous registration code should still work.

If you do not have a V4.0 or V4.1 license you can purchase an upgrade from IGSPHA. Ordering information can be found on the Ordering & Shipping.

Because GLHEPro V4.1 uses internal databases it will no longer link to your old database (GLHEPRO.mdb). You will need to export your user specified heat pump records and import them into GLHEPro V4.1. Contact glhepro@okstate.edu if you have any further questions about this problem.

Yes and No. GLHEPRO V.4 can be set to approximate a standing column well (SCW) without bleed. In many cases, the bleed, by drawing ground water through the surrounding rock, makes a significant contribution to the performance of a standing column well. The combined heat and mass transfer in the rock cannot be directly modeled by the conduction-only model in GLHEPRO. Some users have heuristic approximations for the effect of bleed, such as increasing the thermal conductivity. We are not in a position to make a recommendation on this.

For using GLHEPRO V.4 to simulate or size a standing column well without bleed, the following procedure is recommended, based on the only in-hole thermal resistance that an SCW has is the convective resistance at the outer wall.

Choose, under "Calculate Borehole Thermal Resistance", the concentric tube option.

Set outer tube inside diameter (D2) to the actual well diameter.

Set outer tube outside diameter (D1) slightly larger, say 0.1 inches larger than D2.

Set borehole diameter (d) another 0.1 inches larger than D1.

Change the outer pipe and grout conductivities and volumetric heat capacities to be the same as the soil.

Set the inner tube dimensions and conductivities corresponding to the dip tube.

Choose Option 2 to calculate the convection coefficient at the borehole wall.

Press the Calculate Borehole Resistance button, then OK to return to the main screen.

The following instructions were provided by one of Dr. Spitler’s former graduate students.

Step 1: Setup an hourly report for building HVAC system cooling and heating loads. An example of eQUEST/DOE-2.2 input file is given in the following:

$ ---------------------------------------------------------

$ Hourly Reporting

$ ---------------------------------------------------------

"Hourly Report Block 1" = REPORT-BLOCK

VARIABLE-TYPE = BUILDING-HVAC

VARIABLE-LIST = ( 1, 2 )

..

"Hourly Report 1" = HOURLY-REPORT

REPORT-SCHEDULE = "Hourly Report Schedule"

REPORT-BLOCK = ( "Hourly Report Block 1" )

..

Step 2: Run eQUEST simulation and export the hourly results to a CSV file with the "Export Hourly Results..." utility provided in the "File" menu of eQUEST.

Step 3: Load the two columns of data: "Building cool load (coils+losses&gains) (Btu/hr)" and "Building heat load (coils+losses&gains) (Btu/hr)", into the "Peak Loads Analysis Tool" of GLHEPRO (V4.0) following the tool instructions, then use the tool to generate the monthly cumulative/peak heat/cool loads. Also, estimate the "duration of peak hours" with the tool.

Step 4. Copy and paste these data into GLHEPro's "Heat Pump Load" table.