dhollman's profile - activity

Is it possible to disable regex for Output:Variable? It's documented that you can use regular expressions in the key val

@aaron boranian thanks, though I had already linked to that other question in mine.

Is it possible to disable regex for Output:Variable? It's documented that you can use regular expressions in the key val

Julian, is this answer still fully accurate given your update on https://github.com/NREL/OpenStudio/issues/1721#issuecom

In the EnergyPlus "Auxiliary Programs" document it says the following: fields here will be dependent on the source

In the EnergyPlus "Auxiliary Programs" document it says the following: fields here will be dependent on the source

In the EnergyPlus "Auxiliary Programs" document it says the following: fields here will be dependent on the source

In the EnergyPlus "Auxiliary Programs" document it says the following: fields here will be dependent on the source

What is the Design Condition on the epw file? Hi, I'm trying to create a weather file from measured data. I'm trying to

Understanding EPW meteorological flag codes The EPW specifications state that the meteorological fields will have one of

Understanding EPW meteorological flag codes The EPW specifications state that the meteorological fields will have one of

I'm wondering how reliable the ground temperature data is in the EPW weather files on the EnergyPlus website.

For instance I was looking at Calgary, AB, Canadafrom EnergyPlus.net.

Ground temperatures are generated by the EnergyPlus Weather Converter program as far as I am aware; it does not originate with the rest of the data in those files (though it seems to be based on annual DB values).

Original file contents:

GROUND TEMPERATURES,3,.5,,,,-5.32,-0.71,4.61,8.57,14.09,15.26,13.38,8.88,3.00,-2.46,-6.33,-7.35,2,,,,-3.94,-1.30,2.37,5.40,10.36,12.27,11.91,9.37,5.31,1.02,-2.60,-4.38,4,,,,-1.75,-0.59,1.57,3.57,7.30,9.21,9.67,8.57,6.20,3.29,0.48,-1.33

Formatted more readably:

             Jan   Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov   Dec
0.5 m       -5.3  -0.7    4.6    8.6   14.1   15.3   13.4    8.9    3.0   -2.5   -6.3  -7.4    
2.0 m       -3.9  -1.3    2.4    5.4   10.4   12.3   11.9    9.4    5.3    1.0   -2.6  -4.4    
4.0 m       -1.8  -0.6    1.6    3.6    7.3    9.2    9.7    8.6    6.2    3.3    0.5  -1.3

So in January at 4m depth (about 13 ft.) it is below freezing.

There is some evidence that calls this 4m temperature into question. According to the City of Calgary:

Frost depth This is the depth to which the ground is frozen. In Calgary, frost depth usually reaches an average of seven feet every year. It takes several months to reach this depth and usually occurs in late February or early March.

Though they say "average" depth I'd actually expect in normal practice that a local frost depth guideline would rarely actually freeze.

Calgary's statement seems to be roughly consistent with other sources as well.

So not only does the 4m temperature seem to be far colder than would be expected by the frost depth statement, but also as the peak at that depth it occurs the wrong time of year, 1-2 months early.

What procedure is used to generate this data? Are there any references or documentation?

Thanks!

The first link is 404 now :(

After following @Aaron Boranian's answer I discovered an easier work around. Find either your OpenStudio shortcut or

BEOpt Latitude Warning I am a new user who is trying to get the temperatures and relative humidity of a designed contain

Why do some 90.1 schedules start HVAC equipment later than receptacle / lighting loads? The ASHRAE Std. 90.1-2013 User's

If you have to manually create an app manifest this seems like an oversight or bug in OS. Has anyone filed an issue with

The image is not showing up. Can you add it in again?

Can i use AUTO CAD for building design in Energy plus ? please suggest me which software should i use to insert my drawi

You did not "attach" any error information

Greetings everyone I am in need of urgent help as I have thesis defense in about month and am struggling with the result

Greetings everyone I am in need of urgent help as I have thesis defense in about month and am struggling with the result

Why do some 90.1 schedules start HVAC equipment later than receptacle / lighting loads? The ASHRAE Std. 90.1-2013 User's

Some 90.1 schedules start HVAC after receptacle / lighting loads? The ASHRAE Std. 90.1-2013 User's Manual contains sched

Some 90.1 schedules start HVAC after receptacle / lighting loads? The ASHRAE Std. 90.1-2013 User's Manual contains sched

Some 90.1 schedules start HVAC after receptacle / lighting loads? The ASHRAE Std. 90.1-2013 User's Manual contains sched

@Phil you might get more response if you ask that as a new question

Air Curtain Modelling Technique Dear Everyone, I am dealing with few energy models for LEED which contains Air Curtain.

This may be a preliminary answer. I looked at the EnergyPlus source code (C++). It appears to use the exit code only as

Thank you Jason

HAP model for VRF with DOAS vs. baseline system 5 (VAV) for LEED v4 Hi everyone, We have a question concerning performa

Air Curtain Modelling Technique - LEED Carrier HAP Dear Everyone, I am dealing with few energy models for LEED which co

Air Curtain Modelling Technique - LEED Carrier HAP Dear Everyone, I am dealing with few energy models for LEED which co

@JasonGlazer thanks I edited that into the answer

@JasonGlazer thanks I edited that into the question

There are three primary sources for energy modeling schedules I am aware of: The ASHRAE 90.1 User's Manual NREL/TP-55

What is the 90.1-2013 Appendix C "envelope performance factor"? ASHRAE Std. 90.1-2013 Appendix C states that you have to

What is the 90.1-2013 Appendix C "envelope performance factor"? ASHRAE Std. 90.1-2013 Appendix C states that you have to

The TAMU link no longer goes to a specific document, just a general info page.

The COMNET link seems to no longer work.

EnergyPlus process exit codes? The EnergyPlus program appears to return an environment result code of 0 when there were

EnergyPlus process exit codes? The EnergyPlus program appears to return an environment result code of 0 when there were

Error: "Process exited with a non-zero exit code of: 1" Hi! I'm trying to get my model to run with a measure created by

According to https://bigladdersoftware.com/epx/docs/8-4/tips-and-tricks-using-energyplus/run-energyplus-in-parallel.html

I am looking to find out if anyone has published C# code to import the functions from Weather Convertor Program epluswth.dll?

[The documentation here] (https://bigladdersoftware.com/epx/doc...) gives examples of doing this from VB (not sure if that is "classic" VB6 or actually VB.NET). I'm looking for the equivalent for C#.

Thanks!