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I'm running a script for a large number of runs and want to pull out some hourly outputs. I've defined the Output:Variable's that I want, but when I'm running the simulations through eppy, I don't get the output CSV that I would if I were running it through EP-Launch. I thought setting readvars=True as an argument to the run function would do the trick, but alas, no such luck.

Is there any way to process the output variables to CSV via eppy?

Using: python 3.6, eppy 0.5.46, and E+ v 8.5

Thanks! Eric

Thanks Santosh. I actually plan to process the CSV files with Pandas, so I think my only issue is eppy is not producing

Eppy doesn't produce Output Variables I'm running a script for a large number of runs and want to pull out some hourly o

Eppy doesn't produce Output Variables I'm running a script for a large number of runs and want to pull out some hourly o

@macumber I'm tangentially curious about how E+ deals with day of the week regarding the "wrapping" of an AMY file when the dates span two years. For example, let's say I have utility data that starts 1/15/2015 and ends 1/14/2016. In an AMY file for this period, the 2016 data would wrap to the beginning of the file. But when that happens, the last day in 2016 (e.g. 1/14/2016) is always the same weekday as the first day of the week in 2015 (e.g. 1/15/2015). Both days are Thursday in this example. So does E+ just shift all of those dates in the 2015 section (e.g. 1/15/2015 would be a Friday)

The fan is running and the OA damper fraction is above 0, so I assume it's getting fresh air.

At this point, I'm removing the ability for the system to cycle on at night if spaces get out of tolerance. It's a manually controlled pneumatic system, so I think that's the proper way to go anyways. I'm certainly still not sure why that was happening, but I am seeing natural gas usage that much more in line with the actual usage.

Yes, this is exactly how I have it set up in the model, and it does not appear to work. That's why I believed it was some sort of parent/child issue where something else was actually driving the damper position despite this being set.

So, I'm a freshly converted DOE2 user with no one else in the firm with E+ experience, so please bear with me here, but I can't figure out what's going on in this model. I have an exteme number of unmet load hours (mostly heating hours) and my heating is significantly higher during the winter time than the actual bills. So I went to dig into outdoor air and fans at night, and looking at the hourly reports, they're both running 24/7 during the winter time (not good in central Iowa).

I've done everything I can think of to set the outdoor air damper to a minimum of 15% during the daytime and closed at night. But they only both shut off during the summer periods.

I've set the schedules for "Minimum Outdoor Air Schedule Name", "Minimum Fraction of Outdoor Air Schedule Name" (what is the difference between the two, except that the latter overrides other settings?), and the hard coded outdoor air flow minimum to 0 (just to check it's effect). I do have the option set to cycle on the system if any zones need conditioning (which many do because they're overcooling), and if I change that to follow the schedule it does drive both the damper closed at night and the fans off at night. But that only seems to make my zone temperature issues worse.

I know in DOE2 there was generally some parent setting the overwrote the children I was modifying, but I can't figure out what's driving the ship here.

So, what I don't understand is how do I drive the outdoor air damper closed at night while still allowing the fan to cycle on to meet the space load? That may not address my unmet load hour issue, but I'm hoping it's a step in the right direction.

Here's a link to a weather file you can use that should replicate these issues.

And here's a link to the OSM file.

Any thoughts or tips would be appreciated.

Wow. Not sure how I saw the seasonal scheduling but not time of day schedule. That makes perfect sense now. Thank you.

I'm building a rate and had a question about the E+ documentation file. Specifically the utility example files, Example F. Here's what they're trying to model:

The on-peak period is defined as the hours starting at 10am and ending at 7pm, Monday through Friday for June through September and 3pm to 10pm Monday through Friday for October through May. All other hours are considered off-peak.

But here's what the example IDF looks like:

Schedule:Compact, TwoSeasonSchedule, number,
Through: 5/31, For: AllDays,  Until: 24:00, 1,
Through: 9/30, For: AllDays,  Until: 24:00, 3,
Through: 12/31, For: AllDays, Until: 24:00, 1;


Schedule:Compact, TimeOfDaySchedule, number,
Through: 5/31, For: AllDays,  Until: 15:00, 3,
                              Until: 22:00, 1,
                              Until: 24:00, 3,
Through: 9/30, For: AllDays,  Until: 10:00, 3,
                              Until: 19:00, 1,
                              Until: 24:00, 3,
Through: 12/31, For: AllDays, Until: 15:00, 3,
                              Until: 22:00, 1,
                              Until: 24:00, 3;

The TwoSeasonSchedule makes sense to me, but the TimOfDaySchedule doesn't make sense. Can someone explain how the 1's and 3's at the end of the TimeOfDaySchedule work? Why would days before May 31st and before 3pm be given a summer schedule, and then a winder schedule until 10pm, and then back to a summer schedule until midnight?

I'm guessing I'm reading this wrong, but I'm hoping someone can clarify it for me.

Thanks! Eric

@david-goldwasser Thanks David. I tried to go through and delete the spaces that were problems. Then I rebuilt them and ran the measure from openstudio. The result, while not as bad, is still exibiting the same issue. Is there any way to salvage the model at this stage in the game?

We've got a model that we ran an intersect match on and it seems to be blowing up a wall in a few spaces. I've tried to delete the spaces and rebuild them, and I get the same results when I rerun the intersect/match. I'm not sure what this issue is, but any guidance on how to correct this would be appreciated.

Here's a link to the model:

https://drive.google.com/file/d/0BzFG...

A good place for this type of thing is openstudio.uservoice.com

I'm working in Sketchup and I just did an intersect/match (I think the match caused the blowup), and now my model is stuck in wireframe mode. None of the "render by" mode buttons do anything.

I shouldn't have to backtrack far as I've been saving regularly, but it would be nice to know why this blew up, because I'm going to have to intersect and match again after I redo the changes...

Here's a copy of the osm file:

https://www.dropbox.com/s/jadouk4v62p...

@Amir-Roth, Sounds good Amir! I have a few projects in the near future that I'm planning on doing in open studio (long time eQUEST user), so even just a really basic framework an an example and I can try to work through it once I get to that point. Thanks for the consideration!

I'm doing my best to learn ruby at this point (Mechanical Engineer with limited programming experience here) to start digging into measures, but in the meantime, I'm hoping someone might be able to save me some time here.

One measure that I'd really like is a "system description" measure. This measure would parse the model and return a description of all the systems and components within the system. For example, the output report might start "The [name] facility is a 323,000 square foot facility..." It could output a description like "The walls are CMU with an insulation value of R-12", or "Air Handling Unit #1 is a variable air volume unit with a 25-hp fan and a design supply capacity of..."

This would be useful on two fronts: quality control and report template generation. For example, if I output a baseline description and it tells me the model has parallel fan powered VAV boxes everywhere, I might recognize that I forgot to add the standard reheat boxes to the new addition. Once I was happy with the output description, I could then use that as the starting point for my report (or maybe simply use it as the report text depending on the project scope/depth).

I know this is probably a pretty complex undertaking and will need customization by pretty much anyone who uses it. Is there a good starting spot for this already developed somewhere that I could use as a basis for something like this?

Hey Hodor, I'm not totally sure what post you're referring to, but you might want to check the posting date on this one...

https://unmethours.com/question/1964/...

Does this answer your question or are you looking for something more specific?

Yes, OpenStudio 1.6 is compatible with Sketchup Pro '15. I'm running the 64 bit version of both on my desktop now.