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2023-03-16 08:54:50 -0500 | edited answer | When two AirflowNetwork:MultiZone:SpecifiedFlowRate objeects are specified, energyPlus clashes. No, there's nothing wrong with the IDF. There was a bug in input processing that didn't always get hit, so the testing t |
2023-03-16 08:54:27 -0500 | edited answer | When two AirflowNetwork:MultiZone:SpecifiedFlowRate objeects are specified, energyPlus clashes. No, there's nothing wrong with the IDF. There was a bug in input processing that didn't always get hit, so the testing t |
2023-03-15 15:23:08 -0500 | answered a question | When two AirflowNetwork:MultiZone:SpecifiedFlowRate objeects are specified, energyPlus clashes. No, there's nothing wrong with the IDF. There was a bug in input processing that didn't always get hit, so the testing t |
2023-03-07 10:52:20 -0500 | commented question | When two AirflowNetwork:MultiZone:SpecifiedFlowRate objeects are specified, energyPlus clashes. Hmmm, well, it did get tested with more than one at one time, but I'll see if I can figure out what is happening. |
2022-10-05 09:04:33 -0500 | received badge | ● Rapid Responder (source) |
2022-10-05 09:04:33 -0500 | answered a question | Where is PrimarySchool.osm? If you really need the original file, then it can be found in the repo history here: https://github.com/NREL/OpenStudio |
2022-09-20 21:20:13 -0500 | edited question | Is there a way to use a unitary system with AirflowNetwork in OpenStudio? Is there a way to use a unitary system with an air flow network? I am trying to develop a measure that will build an air |
2022-09-20 18:00:44 -0500 | commented answer | Is there a way to use a unitary system with AirflowNetwork in OpenStudio? @jrmuller When we did the AFN integration 5 or 6 years ago it was not fancy and the focus was on the non-distribution pa |
2022-09-13 11:01:24 -0500 | commented question | Airflow Networks w/ WindowAC Presumably the additional energy use is due to the increased infiltration, but I am not aware of anything in AFN that wo |
2022-07-30 15:57:44 -0500 | edited answer | When used at low flow rates, the airflow direction became opposite to the intended direction. I've made the change you indicated and tested with the latest release (22.1) and with my build of the in-development cod |
2022-07-30 15:53:57 -0500 | edited answer | When used at low flow rates, the airflow direction became opposite to the intended direction. I've made the change you indicated and tested with the latest release (22.1) and with my build of the in-development cod |
2022-07-30 15:07:08 -0500 | commented answer | When used at low flow rates, the airflow direction became opposite to the intended direction. @yoshiwara Thanks for adding the link to the file, it appears that you changed the flow rate in a few more places than I |
2022-07-26 06:41:09 -0500 | answered a question | When used at low flow rates, the airflow direction became opposite to the intended direction. I've made the change you indicated and tested with the latest release (22.1) and with my build of the in-development cod |
2022-07-05 20:28:33 -0500 | commented question | Failure to import idf energyplus examples? @the_donn the exact details are going to depend on how you answer Aaron's question above, but AFAIK AirflowNetwork objec |
2022-05-11 08:23:32 -0500 | commented answer | Design and Settings of AirFlowNetwork model in E+ for large space served by multiple AHUs @Mariam always happy to help! |
2022-05-10 09:43:54 -0500 | answered a question | Design and Settings of AirFlowNetwork model in E+ for large space served by multiple AHUs Here are some answers, happy to clarify if needed: MultizoneWithoutDistribution will only use the pressure network sol |
2022-05-10 09:43:54 -0500 | received badge | ● Rapid Responder (source) |
2022-04-11 20:37:35 -0500 | edited answer | Interzone airflow between adjacent zones with open walls and dedicated AHUs Based upon the description of what you're trying to model and your goal (close to representative of the real life scenar |
2022-04-07 16:02:06 -0500 | commented answer | Interzone airflow between adjacent zones with open walls and dedicated AHUs @Mariam If you've done the CFD, processing those results should give you the the information needed to create an Airflow |
2022-04-05 11:39:09 -0500 | answered a question | Interzone airflow between adjacent zones with open walls and dedicated AHUs Based upon the description of what you're trying to model and your goal (close to representative of the real life scenar |
2022-04-05 11:39:09 -0500 | received badge | ● Rapid Responder (source) |
2021-04-12 17:57:26 -0500 | commented question | Airflow Network- Error External Node The Help says you now have sufficient karma to be able to upload the file, or at least add a link to it (e.g. a Dropbox |
2021-04-10 12:23:34 -0500 | commented question | Airflow Network- Error External Node If you're trying to use a window on an internal surface, that could be the problem. I don't recall if it that is allowed |
2021-03-16 13:17:47 -0500 | edited question | Download Older Versions of OpenStudio, v-2.5 Download Older Versions of OpenStuido, v-2.5 Hello Does anyone know how it is possible to download older versions of Op |
2020-12-26 09:14:44 -0500 | received badge | ● Rapid Responder (source) |
2020-12-26 09:14:44 -0500 | answered a question | Trick to simulate for a leap year with weather file for "normal" year I'm not quite sure what all you changed, but it appears that you did the following things: Set the leap year flag in t |
2020-12-21 20:23:11 -0500 | answered a question | Skylight air mass flow coefficient The general strategy here is to set up the AirflowNetwork objects so that the airflow through them at a given pressure d |
2020-11-30 08:12:47 -0500 | answered a question | How can I control air change rate when using AFN? There are going to be two fundamental ways to control the air flow with just basic objects. The first is to change the v |
2020-11-30 07:54:55 -0500 | edited question | How can I control air change rate when using AFN? how can i control Air change rate when using AFN Air change rate values are very high got using the output variable name |
2020-11-16 07:47:14 -0500 | commented answer | How do I know the energyPlus simulation year If you're using version 8.5, then in order to control the year you should use the RunPeriod:Custom Range object. That ob |
2020-11-04 11:59:25 -0500 | commented answer | Weather file, cannot find the first day I'm not 100% sure what the error actually is, there are two places that write out that error in that format and I'm less |
2020-11-04 10:28:44 -0500 | commented answer | Weather file, cannot find the first day I'm pretty sure the linked issue is not the exact problem, as the internals have changed quite a bit between 8.9 and 9.4 |
2020-09-16 21:02:49 -0500 | answered a question | typo in openstudio app I think it's actually correct, air flow per area would be: (m3/s)/m2 = m/s |
2020-09-16 14:46:14 -0500 | commented question | Surface normal/azimuth in E+/OpenStudio When you say "automated test", what do you mean? A measure or a Ruby script? |
2020-09-15 11:13:46 -0500 | commented answer | Is there a way to convert ZoneInfiltration:DesignFlowRate to an equivalent AFN object? @mafalda correia That sounds generally correct, though I think the details get important, and I'm no EMS expert. |
2020-09-09 11:15:06 -0500 | commented answer | Best way to model interzone airflow through Air Walls with AFN? Section 2.2.2 of COMIS Fundamentals is "Air Flow through Large Openings", and while its references are older there are a |
2020-09-09 08:11:50 -0500 | commented answer | Is there a way to convert ZoneInfiltration:DesignFlowRate to an equivalent AFN object? @mafalda correia I'm still not sure I'd go with that exponent, but since your case is "virtual" it is probably OK. |
2020-09-06 18:16:51 -0500 | commented answer | Is there a way to convert ZoneInfiltration:DesignFlowRate to an equivalent AFN object? @mafalda correia You are welcome. I'd check the average temperature in your EPW file and take into account the indoor te |
2020-09-04 08:44:23 -0500 | commented answer | Is there a way to convert ZoneInfiltration:DesignFlowRate to an equivalent AFN object? @mafalda correia, that looks about right. Keep in mind that if the conditions you're modeling are different than the ref |
2020-09-03 18:47:57 -0500 | edited answer | "Long Axis of Building" fields on Airflow Network: Simulation Control If I understand your question correctly, you have set "Wind Pressure Coefficient Type" to SurfaceAverageCalculation and |
2020-09-03 15:54:48 -0500 | answered a question | "Long Axis of Building" fields on Airflow Network: Simulation Control If I understand your question correctly, you have set "Wind Pressure Coefficient Type" to SurfaceAverageCalculation and |
2020-09-03 15:31:59 -0500 | answered a question | Best way to model interzone airflow through Air Walls with AFN? Good questions. Here's what I would do: This one, I think, is a shortcoming of E+. Air walls are a new addition, and I |
2020-08-27 21:53:23 -0500 | commented answer | Modifying the idd in E+ is not recognized Did you do the addition of the node data with IdfEditor? I think that program still reads the IDD at runtime, so I belie |
2020-08-26 17:04:09 -0500 | answered a question | Modifying the idd in E+ is not recognized I'm not an expert on the stratified tank model, but I am pretty sure that the IDD is not processed at runtime by more re |
2020-08-25 08:54:49 -0500 | commented answer | The volume flow rate on AFN only while heating in EnergyPlus I would do it with Python as opposed to Excel, Python's CSV module makes this sort of thing super easy. I'm no EMS exper |
2020-08-23 22:34:40 -0500 | commented answer | The volume flow rate on AFN only while heating in EnergyPlus I would do it with Python as opposed to Excel, Python's CSV module makes this sort of thing super easy. I'm no EMS exper |
2020-08-23 17:14:44 -0500 | answered a question | The volume flow rate on AFN only while heating in EnergyPlus I do believe that there are going to be ways to do this within EnergyPlus (probably involving EMS), but I'm not sure tha |
2020-06-26 08:08:51 -0500 | answered a question | Is there a way to convert ZoneInfiltration:DesignFlowRate to an equivalent AFN object? I've used spreadsheets do do this in the past, but I can't seem to find one right now. But the calculation isn't to diff |
2020-06-04 15:14:14 -0500 | commented answer | Multiple-year Simulation The RunPeriod:CustomRange object was removed when the begin/end year fields were added, so you'll probably want to edit |
2020-03-15 17:59:01 -0500 | answered a question | EPW data looks incomplete There's probably not any missing data. That warning happens because OpenStudio is trying to figure out if the EPW that h |