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2023-04-18 09:04:42 -0500 commented answer Ground temperature in openstudio

Refer to OpenStudio's Measure Writer's Reference Guide. The code above would go in the "measure.rb" file of a measure fo

2023-04-05 12:45:29 -0500 commented question ASHRAE/IECC Baseline VAV Fan Curves and Min Flow Fraction

If you look through the Scorecard spreadsheet files for the prototype models, you'll notice that there is a lot of overl

2023-04-05 08:19:56 -0500 commented question ASHRAE/IECC Baseline VAV Fan Curves and Min Flow Fraction

I'm not very knowledgeable about the decisions that were made when creating the Commercial Prototype Building Models, bu

2022-09-21 11:55:49 -0500 commented question Revision control for text-based modeling programs

I would recommend Sourcetree and BitBucket (either run it on your own local server or use their cloud version). You can

2021-01-27 13:04:59 -0500 commented answer Dynamic internal mass in warehouse with EnergyPlus

@rafael.alonso for your use case, couldn't you just make two copies of the model (one with wine and one without) and the

2020-08-24 06:33:14 -0500 commented answer Is there a way or has anybody tried to make 3D space in openstudio using a .Png image?

@bb_designer I've done some limited exploration into what you are looking for (creating spaces from 2D floorplans) by as

2020-08-24 06:28:31 -0500 commented answer Is there a way or has anybody tried to make 3D space in openstudio using a .Png image?

This may not be what you are talking about exactly, but I thought it was related. NVIDIA has created an artificial intel

2020-08-10 06:55:53 -0500 commented answer Openstudio combined with energy plus?

Note that OpenStudio installs EnergyPlus for you, so even though it's technically not a run alone program, you can think

2020-02-21 07:34:15 -0500 answered a question Model vertical helical ground heat exchanger in EnergyPlus

Here are some ideas: Try GroundHeatExchanger:Slinky (seems more similar to the helical ground heat exchanger than the

2020-02-14 13:36:37 -0500 commented question Zone equipment without VAV

I'm not sure, but I would think that even if you are using EMS & BCVTB that Energyplus/Openstudio won't let you chan

2020-02-14 13:36:09 -0500 commented question Zone equipment without VAV

I'm not sure, but I would think that even if you are using EMS & BCVTB that Energyplus/Openstudio won't let you chan

2020-02-14 13:35:36 -0500 commented question Zone equipment without VAV

I'm not sure, but I would think that even if you are using EMS & BCVTB that Energyplus/Openstudio won't let you chan

2020-02-14 13:35:23 -0500 commented question Zone equipment without VAV

I'm not sure, but I would think that even if you are using EMS & BCVTB that Energyplus/Openstudio won't let you chan

2020-02-14 13:35:07 -0500 commented question Zone equipment without VAV

I'm not sure, but I would think that even if you are using EMS & BCVTB that Energyplus/Openstudio won't let you chan

2020-02-14 13:34:47 -0500 commented question Zone equipment without VAV

I'm not sure, but I would think that even if you are using EMS & BCVTB that Energyplus/Openstudio won't let you chan

2020-02-14 13:34:34 -0500 commented question Zone equipment without VAV

I'm not sure, but I would think that even if you are using EMS & BCVTB that Energyplus/Openstudio won't let you chan

2020-02-14 13:33:58 -0500 commented question Zone equipment without VAV

I'm not sure, but I would think that even if you are using EMS & BCVTB that Energyplus/Openstudio won't let you chan

2020-02-14 06:28:55 -0500 commented question HVAC sizing, how to define indoor temperature

Which software tool are you using? You should add it as a tag to your post so that you can get the right people to assis

2020-02-14 06:24:56 -0500 edited answer findglare and glarendx

First of all, findglare and glareindx are fairly old programs in the Radiance suite. Since their publication, an entire

2020-02-14 06:13:04 -0500 commented question Zone equipment without VAV

I'm not sure what you mean by zone dampers with no VAV? Later on you mention modeling a zone damper as a VAV equipment w

2020-02-12 11:57:40 -0500 answered a question Using EnergyPlus Models for Measurement & Verification

I noticed that your website has a focus on open source software solutions. Considering that DesignBuilder isn't open sou

2020-02-03 07:36:05 -0500 commented answer Simplified Modeling Tools

Sefaira is not appropriate for compliance modelling for LEED purposes, although I wouldn't think most of the tools indic

2020-01-30 06:20:36 -0500 commented answer (OpenStudio) Zone thermal has spaces with different floors

@rezaei2 in the HVAC Systems tab, add more than one thermal zone to a GSHP system on the demand equipment side of the ai

2020-01-07 08:00:20 -0500 answered a question How to run HVAC system in open-loop (manual air flow rate control)?

If you would like to manually control the air flow rate, I would suggest checking out the suggestions in the following t

2020-01-06 07:55:23 -0500 commented question How to run HVAC system in open-loop (manual air flow rate control)?

Why are you using a constant fan / constant volume zone conditioning component if you want to vary the airflow rate? I w

2020-01-06 07:49:05 -0500 commented question DOAS system provide conditioned air to other system

It sounds like you have one DOAS serving multiple AHUs which each serve multiple zones. This feature was just added to E

2020-01-06 07:48:37 -0500 commented question DOAS system provide conditioned air to other system

It sounds like you has one DOAS serving multiple AHUs which each serve multiple zones. This is feature was just added to

2019-12-13 07:45:45 -0500 answered a question Fix for non convex surface error?

I would suggest you check out this other UnmetHours post "Non-convex surfaces in EnergyPlus". I think that one should an

2019-12-09 13:42:40 -0500 commented answer Pasting floor plan on top of another in SketchUp but does not appear in Openstudio

How are you pasting the floor 2 file into floor 1? Have you tried using the "Import EnergyPlus IDF" button to import flo

2019-11-12 10:06:48 -0500 commented answer LEEDv4 Kitchens G3.1.1 Exception d

You make a good point about the all-electric building statement. The crux of the issue is the "Fossil/Electric Hybrid" c

2019-11-12 08:04:21 -0500 answered a question LEEDv4 Kitchens G3.1.1 Exception d

Is the kitchen greater than 20,000 sf? If so you can use exception a) in combination with exception d) so that the propo

2019-11-12 07:51:01 -0500 commented answer (OpenStudio) Zone thermal has spaces with different floors

Another option would be to combine spaces and thermal zones so that you have one space per zone and one zone per GSHP. I

2019-10-21 07:26:22 -0500 commented answer annual simulation with energyplus

It sounds like you are trying to determine how many hours in a year you can maintain thermal comfort without your system

2019-10-14 07:34:22 -0500 commented question Outside Dry bulb Temperature is 32F on Summer Design Day

It's also strange that the Zone Dry Bulb Temperature is 32F and the Supply Air Temperature is 75F. I would expect these

2019-10-11 13:42:32 -0500 commented answer EnergyPlus Peak Gain Components Report - Timestamp

Can't you control this by setting the cooling and heating design day profiles for the temperature setpoint schedules con

2019-10-04 07:12:27 -0500 commented answer ASHARE 90.1 Heat Recovery Chiller

I agree with what @dradair is saying, but I just wanted to mention that Table G3.1 Baseline (f) indicates that a condens

2019-10-04 06:52:30 -0500 edited answer Chilled Water as Ice chiller condenser loop

A chiller can be placed on the demand side of an Plant Loop without any problems, and you're free to put whatever you wa

2019-08-26 06:57:32 -0500 commented answer Baseline HVAC system

90.1-2013 Appendix G is also based on climate zone, so like 90.1-2016, climate zone 3b would be fossil fuel so system w

2019-08-14 06:58:18 -0500 answered a question How to Report EFLH for schedules in Open Studio?

I usually calculate the equivalent full load hours based on the resulting energy use of the equipment associated with th

2019-07-30 06:28:22 -0500 answered a question Any way to input MRT in CBE Thermal Comfort Calculator?

If you click on the EN-15251 button in the top right-hand corner of the CBE Thermal Comfort Tool then you have the optio

2019-07-15 05:49:55 -0500 commented answer 90.1 Window to Wall Ratio Calculation - Parking Garage

Table G3.1.5.c (baseline) indicates that if your building has a building type listed in Table G3.1.1-1, then you use the

2019-07-02 06:51:00 -0500 commented answer 90.1 Window to Wall Ratio Calculation - Parking Garage

I believe that what you are saying is the same thing that I was trying to say, but maybe in a more straightforward manne

2019-07-01 15:00:31 -0500 commented answer 90.1 Window to Wall Ratio Calculation - Parking Garage

Table G3.1.5.c (baseline) indicates that if you building has a building type listed in Table G3.1.1-1, then you use the

2019-07-01 14:58:59 -0500 commented answer 90.1 Window to Wall Ratio Calculation - Parking Garage

If you refer to Table G3.1.5.c (baseline) you'll see that it refers to gross above-grade exterior wall area. Then if you

2019-07-01 07:19:47 -0500 commented answer 90.1 Window to Wall Ratio Calculation - Parking Garage

I just wanted to follow up with the fact that since Section 5.5.4.2.1 references Tables 5.5-1 through 5.5-8, that means

2019-04-11 06:56:08 -0500 edited answer What is the solar irradiance simulation engine for EnergyPlus

Hi, You are correct. Have a look on Chapters 5, 6 & 19 of the Engineering Reference. If you want to see the deta

2019-04-11 06:52:07 -0500 answered a question Does MLE+ use BCVTB?

As far as I can tell, MLE+ doesn't use BCVTB. At least, the BCVTB gui doesn't need to be used while connecting Matlab to

2019-04-11 06:45:10 -0500 edited question pv panels and solar collector in openstudio

pv panels and solar collector in openstudio Hi, I am making a comparison between two models for a Chilean house. One wit

2019-04-04 07:51:50 -0500 commented answer Is Appendix G becoming irrelevant?

There are two paths for code compliance, following the mandatory and prescriptive requirements of Sections 5-10 (Prescri