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2019-02-15 13:40:46 -0600 commented answer Energyplus FMU in Pyfmi

@mfath in addition to the IDF file that Thierry asked for, can you post an image/script of the command line you are usin

2019-02-10 08:43:04 -0600 answered a question Energyplus FMU in Pyfmi

How are you compiling the EnergyPlus file as an FMU? Are you using the EnergyPlusToFMU tool provided by LBL? If not, I

2019-02-07 16:27:42 -0600 commented answer OpenStudio User Interface Scaling Problems (Very Small Buttons)

In the comments to the above article, the author notes that Windows 10 has built the fix in by right clicking the applic

2019-02-07 16:27:16 -0600 commented answer OpenStudio User Interface Scaling Problems (Very Small Buttons)

In the comments to the above article, the author notes that WIndows 10 has built the fix in by right clicking > Prope

2019-02-07 15:12:02 -0600 commented answer OpenStudio User Interface Scaling Problems (Very Small Buttons)

Aaron, thank you for the response. That worked like a charm!

2019-02-07 15:11:39 -0600 marked best answer OpenStudio User Interface Scaling Problems (Very Small Buttons)

I have just started using OpenStudio on a 4k monitor and found that the graphical user interface elements do not appear to be scaling correctly. All of the buttons are super tiny and hard to click.

Is there a setting or configuration file I can change to scale the interface elements?

2019-02-07 08:50:37 -0600 commented answer OpenStudio User Interface Scaling Problems (Very Small Buttons)

Thank you for your suggestion. I would hate to use a lower resolution just so that OpenStudio displays correctly. I hope

2019-02-07 08:02:57 -0600 asked a question OpenStudio User Interface Scaling Problems (Very Small Buttons)

OpenStudio User Interface Scaling Problems (Very Small Buttons) I have just started using OpenStudio on a 4k monitor and

2018-12-20 13:34:14 -0600 commented answer What is the best way to use Excel to work with IDF files?

I was just looking into using Pandas to read my EP output files the other day. However, I had trouble parsing the very l

2018-12-20 13:33:52 -0600 commented answer What is the best way to use Excel to work with IDF files?

@Lyle K, that is a very good suggestion. Thank you, I will start there!

2018-12-20 09:37:55 -0600 commented answer What is the best way to use Excel to work with IDF files?

I was just looking into using Pandas to read my Python output files the other day. However, I had trouble parsing the ve

2018-12-06 15:08:22 -0600 received badge  Popular Question (source)
2018-08-07 10:51:59 -0600 commented answer OS Error:''For zone: it is not possible to calculate the volume from the surrounding surfaces so either provide the volume value or define all the surfaces to fully enclose the zone.''

@Raghda Derbel You are close but it would be more accurate to sum all the volumes and set that as the volume in the ther

2018-08-07 10:16:01 -0600 commented answer DView Loading Data Extremely Slowly

@anchapin please post the GitHub issue link when you do so that I can post my experience and keep track of the solution.

2018-08-07 08:02:13 -0600 commented answer OS Error:''For zone: it is not possible to calculate the volume from the surrounding surfaces so either provide the volume value or define all the surfaces to fully enclose the zone.''

@Raghda Derbel, you will need to define a new thermal zone for each kitchen.

2018-07-31 09:45:41 -0600 marked best answer DView Loading Data Extremely Slowly

OpenStudio now uses DView directly for data visualization instead of ResultsViewer. However, while trying to open data dview takes several minutes (sometimes 15 or more) just to open a small output file. Are there any fixes I can do to that will make this process faster?

In the meantime, I will likely need to use another results viewer because this is too slow.

2018-07-26 17:19:24 -0600 commented answer Best method to define individual space properties

Thank you for your answer. I should really learn Ruby and the OpenStudio SDK. It seems like I could automate a lot of my

2018-07-26 17:18:51 -0600 marked best answer Best method to define individual space properties

I am setting up an OpenStudio model for an architectural project and there are quite a lot of spaces where I have to define unique properties for occupancy and ventilation. More specifically they are labs with fume hoods.

I've defined high level information as space types and placed local properties onto the spaces in the "Spaces" tab. However, the space type definitions remain part of the calculations.

Space Load Properties

Zone Name        |  Floor Area {m2} | # Occupants | Area per Occ {m2/person}| Occ per Area {person/m2}  
THERMAL ZONE: 514 ADV CHEM TL    167.93    25.0           6.70                    0.15

Is there a way to override the space type properties when a local load has been defined in the "Spaces" tab?

What are the best methods and practices when it comes to defining properties for individual spaces in OpenStudio?

I found this old question here but it seems to no longer be relevant with new versions of OpenStudio.

2018-07-24 16:57:51 -0600 edited question Best method to define individual space properties

Best method to define individual space properties I am setting up an OpenStudio model for an architectural project and t

2018-07-24 16:56:45 -0600 asked a question Best method to define individual space properties

Best method to define individual space properties I am setting up an OpenStudio model for an architectural project and t

2018-07-24 16:39:35 -0600 commented answer Input people number in each space

I am hoping to define unique loads for many spaces throughout my building and assumed that a locally defining property w

2018-06-08 06:43:08 -0600 marked best answer OpenStudio Humidity Setpoint Not Met

Dear Modeling Community,

I have setup humidification and dehumidification setpoint schedules of always 35% and 70%, respectively. However, when checking the Zone Conditions Humidity table there are significant hours (~3750 hours) where the humidity is below 30%. This is strange because based on the setpoint the zone should not be allow to drop below 35%.

For context, the project is a Midrise Apartment so the occupancy doesn't drop down like office. I would suspect humidification to be necessary throughout most of the day.

I am using a PTHP, could it be that the system does not have any humidification/dehumidification functionality so although I have a schedule set there is no control to the humidity?

Any other suggestions why the humidity is uncontrolled in my space, despite defining setpoint schedules would be very appreciated.

Thank you, Justin

2018-06-01 09:47:10 -0600 commented answer COP of District Cooling Component

Thank you for your quick reply.

2018-06-01 09:47:01 -0600 marked best answer COP of District Cooling Component

I have recently run a simulation that used the DistrictCooling component to model a Central Chiller that is external to the building.

However, after reading the Engineering Reference Manual and Input/Output Manual, I am unable to determine if the energy consumption calculated from the District Cooling component accounts for a COP. My assumption is that the energy values are just that required to satisfy the demand, without a COP. Is that the case?

I would like to know so that I don't discount the energy consumed again if a COP was accounted.

2018-06-01 09:08:26 -0600 asked a question COP of District Cooling Component

COP of District Cooling Component I have recently run a simulation that used the DistrictCooling component to model a Ce

2018-05-30 09:00:35 -0600 commented answer OpenStudio/EnergyPlus Thermal Zone Outdoor Air Balance with Exhaust Fan Only and 100% Outside Air System

Thank you for your advice. I thought that might be the best solution, it is good to get confirmation. After specifying t

2018-05-30 08:57:50 -0600 commented answer OS Error:''For zone: it is not possible to calculate the volume from the surrounding surfaces so either provide the volume value or define all the surfaces to fully enclose the zone.''

For anyone interested in changing the volumes more quickly, you can also manually type in the volume into the *.osm file

2018-05-25 12:23:12 -0600 edited question Change IDF File After Setting Up OpenStudio Project

Change IDF File After Setting Up OpenStudio Proejct I started a new OpenStudio project in the SketchUp Plug-in by import

2018-05-25 12:22:15 -0600 edited question OpenStudio/EnergyPlus Thermal Zone Outdoor Air Balance with Exhaust Fan Only and 100% Outside Air System

OpenStudio/EnergyPlus Thermal Zone Outdoor Air Balance with Exhaust Fan Only and 100% Outside Air System I am attempting

2018-05-25 12:18:24 -0600 edited question OpenStudio/EnergyPlus Thermal Zone Outdoor Air Balance with Exhaust Fan Only and 100% Outside Air System

OpenStudio/EnergyPlus Thermal Zone Outdoor Air Balance with Exhaust Fan Only and 100% Outside Air System I am attempting

2018-05-25 12:15:47 -0600 edited question OpenStudio/EnergyPlus Thermal Zone Outdoor Air Balance with Exhaust Fan Only and 100% Outside Air System

OpenStudio/EnergyPlus Thermal Zone Outdoor Air Balance with Exhaust Fan Only and 100% Outside Air System I am attempting

2018-05-25 11:59:51 -0600 asked a question OpenStudio/EnergyPlus Thermal Zone Outdoor Air Balance with Exhaust Fan Only and 100% Outside Air System

OpenStudio/EnergyPlus Thermal Zone Outdoor Air Balance with Exhaust Fan Only and 100% Outside Air System I am attempting

2018-05-24 15:56:23 -0600 marked best answer Point of Use Electrical Hot Water Heater

What is the best way to model a Point of Use Electrical Hot Water Heater in OpenStudio?

I was thinking that I could setup several small electric hot water heaters with small water volumes and let them address the demand. Would this be appropriate or might there be a better solution?

2018-05-24 15:18:40 -0600 edited question Point of Use Electrical Hot Water Heater

Point of Use Electrical Hot Water Heater What is the best way to model a Point of Use Electrical Hot Water Heater in Ope

2018-05-24 15:18:11 -0600 asked a question Point of Use Electrical Hot Water Heater

Point of Use Electrical Hot Water Heater What is the best way to model a Point of Use Electrical Hot Water Heater in Ope

2018-05-18 10:46:08 -0600 marked best answer Access to Cold Water Supply Temperature for WaterUse:Equipment in OpenStudio

I have setup a WaterUse:Equipment component in my OpenStudio model following this tutorial. However, I would like to edit the Cold Water Supply Temperature Schedule Name input to the WaterUse:Equipment.

I am familiar with how to do this in EnergyPlus as it is simply the input below the Hot Water Supply Temperature Schedule Name, can you help me set this input within OpenStudio?

I noticed the WaterHeater:Mixed component has a Cold Water Supply Temperature Schedule Name that provides input to the boiler but the WaterUse:Equipment is not doing the proper mixing because the supply temperature is set to the default 10C.

Thank you,

Justin

Edit 1 I noticed that the Cold Water Supply Temperature Schedule Name for the WaterHeater:Mixed component does not appear to have an effect on the energy consumption of the Water Heater when elevating hotter or colder supply water. Am I missing something?