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2020-09-16 07:50:14 -0500 | commented answer | OpenStudio - If I change the wall construction to be thicker on a base model, do I have to also change the geometry to match this? To do this, I'd recommend writing an OpenStudio Measure, then using the ThermalZone.setVolume() API method to vary the v |
2020-09-16 07:48:37 -0500 | commented answer | OpenStudio - If I change the wall construction to be thicker on a base model, do I have to also change the geometry to match this? Normally, OpenStudio auto-calculates the zone volume based on the geometry. As you've noticed, this geometry is planar, |
2020-08-14 07:58:50 -0500 | received badge | ● Nice Answer (source) |
2020-01-31 20:46:14 -0500 | answered a question | My chiller capacity is 133% higher than the OpenStudio design cooling load to meet the zone set point temperature. Why there is a big difference and Why the zone set point temperature is not met at the design cooling load? Looks like you have a classic case of unmet hours. Follow the process outline in the answers to this question to see wh |
2019-05-18 07:34:07 -0500 | answered a question | .xml creator broken in PAT 2.8.0 Good catch. Turns out the issue was actually caused by something being fixed in EnergyPlus. For more details on the ca |
2019-04-06 14:59:17 -0500 | answered a question | Basic Envelope Change results in opposite EUI results of those expected Running the models and looking at the OpenStudio Results, I noticed some suspicious things: The heating and cooling de |
2019-02-27 12:35:51 -0500 | received badge | ● Necromancer (source) |
2019-02-16 11:22:30 -0500 | answered a question | Why does datapoint.zip exist? data_point.zip supports the architecture of OpenStudio-Server, which is what PAT uses when running simulations both loca |
2019-02-16 10:41:23 -0500 | answered a question | Heat Pump - Water to Water - Cooling Does Not Link to the Condenser Loop Note This method can be used for water-to-water heat pumps, water-cooled chillers, water-to-water heat exchanges, water |
2018-11-16 10:19:47 -0500 | answered a question | Office with Detailed geometry in os-standards gem It's my fault those aren't merged and working, but @Piljae Im from ORNL is working on bringing them up to speed. No tim |
2018-10-11 00:07:41 -0500 | answered a question | Script for autosizing OS models? As of OpenStudio 2.5.0, model.autosize is part of the OpenStudio API. So in a measure, just write: model.autosize No |
2018-08-08 10:48:28 -0500 | marked best answer | Heat Recovery Chiller Autosizing I'm modeling heat recovery from a Model setup:
I'm getting zero autosized flow through the heat recovery loop and trying to figure out why. Here's the link to my idf. |
2018-06-13 15:02:52 -0500 | commented answer | does openstudio reverse translator only collect curve objects? Yes, that's exactly it. |
2018-06-12 16:21:35 -0500 | commented answer | does openstudio reverse translator only collect curve objects? Yes, you can absolutely use .osm files as a library source. The easiest way to do this is to make a new model in the OS |
2018-06-10 15:31:43 -0500 | commented question | EMS system actuator lag You may have already done this, but make sure you are using the correct EMS calling point. Chapter 6 of the EMS Applica |
2018-06-10 15:25:23 -0500 | commented answer | does openstudio reverse translator only collect curve objects? The Reverse Translator isn't very full featured because in the early days of OS, very few people were using EnergyPlus, |
2018-06-10 15:23:54 -0500 | commented answer | does openstudio reverse translator only collect curve objects? @Matt Koch, in case it's helpful to you in the future on the OS website there is a quick summary of import/export optio |
2018-06-10 15:10:54 -0500 | answered a question | OpenStudio Control Thermostat You could accomplish customized control of the thermostat by using the Energy Management System (EMS) objects. These ob |
2018-05-11 18:51:30 -0500 | commented answer | Error running "Create Baseline Building" Measure in OS 2.3+ If you have a different failure email me your model if you don't mind. Id like this to be robust, so files that don't w |
2018-05-11 13:37:56 -0500 | commented answer | Error running "Create Baseline Building" Measure in OS 2.3+ I'd have to think about it more, but mainly just ' and " marks, because those have special meaning in SQL queries. |
2018-05-10 18:06:43 -0500 | answered a question | Error running "Create Baseline Building" Measure in OS 2.3+ In case anyone else hits this same error, the problem was that one of the Thermal Zones in the model had a " (quotation |
2018-05-10 18:00:49 -0500 | commented answer | OpenStudio 2.5 Create DOE Prototype Building @Tim Johnson I just updated the Create Baseline Building measure on BCL |
2018-03-19 23:59:21 -0500 | received badge | ● Good Answer (source) |
2018-03-14 11:53:43 -0500 | commented question | Error running "Create Baseline Building" Measure in OS 2.3+ @ethankheil did you send me the model? I want to make sure it didn't get stuck in a spam filter. |
2018-03-12 09:23:13 -0500 | commented question | Error running "Create Baseline Building" Measure in OS 2.3+ Andrew.parker@nrel.gov |
2018-03-07 22:00:38 -0500 | commented question | Error running "Create Baseline Building" Measure in OS 2.3+ This looks like a bug. I'm working on the openstudio-standards gem now. Could you email me one of the test models that |
2018-01-26 22:49:17 -0500 | answered a question | Create DOE Prototype Building measure fails in OpenStudio 2.4.0 Looks like a bug, probably due to a rounding mistake in the primary & secondary daylight sensor control fraction add |
2017-12-16 18:16:42 -0500 | commented question | Baseline Systems- System 4 heated only Spaces Third thing, I think those zones should be attached to the primary system on the floor unless they meet the internal loa |
2017-12-16 18:14:43 -0500 | commented question | Baseline Systems- System 4 heated only Spaces Second thing, right now the measure is not checking the whether or not the proposed system for that zone is "exhausting |
2017-12-16 17:57:18 -0500 | commented question | Baseline Systems- System 4 heated only Spaces First thing to know is that the OpenStudio Baseline Measure does not check the values from Table 3.1 to distinguish sem |
2017-12-16 17:33:59 -0500 | answered a question | The return pipe of AHU is the supply pipe for a radiant system in another floor. Is there a way to model it in OpenStudio? Disclaimer: I think that getting the controls for this to work will be tricky, and I haven't modeled this configuration |
2017-11-25 11:51:44 -0500 | answered a question | Dview bug in displaying results from short time periods As far as I know, you are the first person to report this. I added the bug so that the developers will know about it. |
2017-11-25 11:44:37 -0500 | commented answer | Sequential load distribution scheme seems not working @TomB edited per your comments. |
2017-11-25 11:44:12 -0500 | edited answer | Sequential load distribution scheme seems not working @TomB is right, and the chart he suggested should be your starting point: Report the timeseries cooling output for eve |
2017-11-25 11:01:44 -0500 | commented answer | Get Autosized IDF File (After Sizing Runs) FWIW, methods to get all autosizable fields in all objects supported by OpenStudio should be included in OpenStudio 2.4. |
2017-11-20 15:58:04 -0500 | commented question | Sequential load distribution scheme seems not working It generally seems to be working as intended; not sure if the black in the graph is ChillerB3 or if it the top of each s |
2017-11-18 18:13:34 -0500 | answered a question | Sequential load distribution scheme seems not working @TomB is right, and the chart he suggested should be your starting point: Report the timeseries cooling output for eve |
2017-11-10 10:32:58 -0500 | commented question | Why a negative zone volume? EnergyPlus 8.8 changed the zone volume calcs. From my initial experience, it seems like this new code catches more ba |
2017-11-08 10:31:20 -0500 | answered a question | Optimal operation of plant chillers (EnergyPlus) First, make sure that all chillers are needed by either hard sizing the chillers or setting each chiller's sizing factor |
2017-11-08 10:15:11 -0500 | answered a question | Error in "create baseline building" measure @mdahlhausen is right, you need to include an HVAC system in your proposed model so that the baseline system type can be |
2017-11-08 10:07:35 -0500 | answered a question | How System Ventilation Requirements for Cooling is calculated? 90.1 Appendix G requires that the baseline model have the same ventilation rates as the proposed model. The Create Basel |
2017-11-08 10:02:22 -0500 | commented question | Thermal storage stratified, source side inlet/outlet temperature Have you checked the flow rate through the thermal storage tank inlet and outlet nodes? Sometimes identical entering an |
2017-11-07 16:04:47 -0500 | answered a question | openstudio-standards apply_prm...efficiency Here's what's going on: In the code, it assumes that either: The pump flow rate was autosized and the autosized rated |
2017-10-20 11:40:27 -0500 | commented answer | What are your techniques for reducing unmet hours? degrees Rankine. 1 R = 1 delta F |
2017-09-29 12:47:35 -0500 | commented answer | Simulate DOE commercial reference buildings in OpenStudio @msheppy Yes, see this video |
2017-08-19 18:38:25 -0500 | commented question | How to correctly setup outdoor air pretreat setpoint manager? Can you attach a picture of your configuration now? |
2017-08-19 18:37:01 -0500 | commented question | Unexplained start date sensitivity in E+ Simulation I'd plot the end uses at detailed frequency and see which one(s) show the divergence. My guess is that it will be heati |
2017-07-21 11:14:32 -0500 | commented answer | OpenStudio Analysis Spreadsheet Failed to Load Measure Also, PAT 2.2.0 can do the same things that the spreadsheet can, but has validation code to help catch and address these |
2017-07-21 11:13:30 -0500 | answered a question | OpenStudio Analysis Spreadsheet Failed to Load Measure My best guess is that there is something wrong in either the measure.rb file or the measure.xml file. In particular, ch |
2017-07-18 14:37:00 -0500 | commented question | OpenStudioApp.exe-No Disk If you type %HOME% into a command prompt, what do you see? |