Julien Marrec's profile - activity

E+ 8.9.0 recently added a new field to the ZoneHVAC:EquipmentList, that is Load Distribution Scheme. This field isn't e

This is just a warning to tell you that the min/max values for X/Y variables exceeds the limits defined from AHRI 551/59

This is just a warning to tell you that the min/max values for X/Y variables exceeds the limits defined from AHRI 551/59

I don't think there's a way to tell OS to not use the SpaceType's load when you add your own load of the same type. Ins

You want to read the Engineering reference, especially the sections Sizing Manager and Zone Design Loads and Air Flow Ra

I think you supposed wrong here :) Airflow Network stuff seems to be wrapped in OpenStudio, see the SDK object list for

You correctly found the two that are indeed available, but indeed ZoneInfiltration:FlowCoefficient is not wrapped in Ope

Like I said, the Fatal tells you there's something (reported before as a Severe) that it couldn't recover for. So fix th

Like I said, the Fatal tells you there's something (reported before as a Severe) that it couldn't recover for. So fix th

Ok, glad you found something that works. (For the record, I fixed this dependency problem recently, so if you try the la

(There's also OpenStudio::openStudioLongVersion which will append the build SHA to the version, eg 2.6.1.c8b48af2d6, but

To paste a snippet out of the eplusout.err, you can just copy and paste the text in your post, then use the "Code" funct

If I could make a quick suggestion, since I start to see a pattern here: it'd be best if you could find shorter, clearer

Sketchup's API is exposed in Ruby, so you can indeed import your geometry, do stuff to it (normal Sketchup work), and sp

There are a variety of sizing factors used throughout E+ that could lead to this. Hard to tell here with no information.

OpenStudio 2.5 and EnergyPlus 2.13??? 2.5 should be based on EnergyPlus 8.9.0. Anyways, please open the "eplusout.err" t

You need to connect it to the supply side of your plant loop, and ensure you get an adequate PlantEquipmentOperation:Hea

Looks like it works indeed on this page now. Thanks!

Jason, I'll answer on the Github Issue here

This is not an answer, but rather a comment (or a new question)

I'm closing this question. Be careful not to fall into a "please do my homework" type of situation, nor to confuse unme

I'm closing this question. Be careful not to fall into a "please do my homework" type of situation, nor to confuse unme

Be careful not to fall into a "please do my homework" type of situation, nor to confuse unmet hours with Stack Overflow.

And what's your output frequency? Use detailed. Also check out the Plant and water heater Unmet loads.

Go upvote this issue please!

I'm using OpenStudio to simulate with EnergyPlus. I want to get a csv file out of it in order to do some post-processing.

As stated in the thread Getting csv from sql, one way to get the csv is to re-run the IDF file generated by OpenStudio through the EP-Launch program. But that would require running the simulation a second time, which I want to avoid.

OpenStudio does save the .eso file, and I can process it just fine using ReadVarsESO that comes with EnergyPlus. The only problem is that I'm getting this message

 ReadVarsESO program starting.
 too many variables requested, will go with first          255

Now, in EP-launch, if you go to Options, then "Miscellaneous", you can tick an option "Allow more than 250 columns", and you'll end up with a csv that has all the reporting variables, even if more than 250 or 255.

So I'm guessing there's a way to call ReadVarsEso with some kind of parameter that tells it to ignore the columns limit.

How can you run the ReadVarsESO without the 255 columns limit?

Python and pandas would do that quite easily. This code will output as many csv files as needed regardless of your actua

Python and pandas would do that quite easily. This code will output as many csv files as needed regardless of your actua

Python and pandas would do that quite easily. import pandas as pd import numpy as np df = pd.read_csv('eplusout.csv',

@kwalkerman: added an answer to update the status of the thread + show examples as you requested. Thanks to @MarkAdams f

Support for regular expressions (regex) has been added by @MarkAdams in PR#6017, circa E+ 8.7. The I/O reference guide

In the "Key" field of the Output:Variable, is there any way to wildcards (aside from "*" by itself), or even regular expressions?

Output:Variable, *, !- Key Value System Node Temperature, !- Variable Name hourly; !- Reporting Frequency

For example, I might want to output the System Node Temperature only for all nodes that contain either 'DOAS' or 'DHW'. Is that possible?

Probably that measure.xml was conflicted. Like duplicate uuid compared to another measure, or wrong version etc.

Does your measure have a broken red icon next to it? Means the measure code isn't valid.

You can't. ForwardTranslation (OSM -> IDF) works, but ReverseTranslation (IDF-> OSM) works only for a very limited

You can't. ForwardTranslation (OSM -> IDF) works, but ReverseTranslation (IDF-> OSM) works only for a very limited

Should be a comment rather than an answer :)

Searching for documentation

• I went through the official user documentation which is really short, only these two documents: Radiance Tutorial and Radiance Reference Guide.

• I pretty much went through all the Youtube videos I could find on NREL’s channel about Radiance (a list is here)

• I also looked at quite a few questions about daylight and openstudio on UnmetHours.

Yet I still have many questions and/or concerns about the Radiance Measure.

I know this isn't the original intent of UnmetHours, but I feel like a global post (like community wiki) would be helpful, so pardon me for asking multiple things in this thread.

What is the current state of the OpenStudio Radiance Measure and what can we expect going forwawrd?

• I read in this question that there is zero truth reporting at the end of the perimeter zone since the boundary is opaque. How should we place the illuminance map regarding the exterior walls?
• Can you place a non-rectangular illuminance map? In Sketchup Plugin it seems you can't. If not, how do you deal with non rectangular spaces?
• Is there any measure that would add an illuminance map to all spaces or do you have to do it manually? (Seems like this would be very doable to create one using the SDK...)
• Will Dview eventually support visualizing the illuminance map results, or are we stuck installing Results Viewer from OpenStudio 2.2.0 for that?
• Radiance Measure calculates sDA, but does the Radiance Measure calculate the ASE metric? (required by LEED).
• Given the fact that Sketchup Make is apparently turning into a web application with no plugins at the moment (and no communication from Trimble about when/if plugins will be available), is there any other way to place Radiance-aware components onto your geometry? (Having to create geometry in an old OpenStudio version with Sketchup 2017 would be a major problem, since upon updating your model to a newer OpenStudio version you wouldn't really be able to go backwards to your old OS Sketchup Plugin to do ulterior modifications...)

** Warning ** SizePlantLoop: Calculated Plant Sizing Design Volume Flow Rate=[0.00] is too small. Set to 0.0 ** ~~~

You wrote that comment while I was in the process of writing my answer (I didn't steal it, promise!), glad you figured i

Please fill out the "Efficiency Curve Temperature Evaluation Variable". As you can see in ForwardTranslateBoilerHotWater

C:\openstudio-x.y.z\bin if using version >= 2.0.0. C:\Program Files\OpenStudio x.y.z\bin if using 1.x

A design alternative in pat is as follows: Seed model + configured measure(s) => new model => IDF => Results