Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question

Li_Liu's profile - activity

2020-07-14 10:28:53 -0500 commented answer OpenStudio 3.0.1 Installation Question

Appreciate your help. But here is the problem, I downloaded the OS CLI from your link as well, it's the same as what I'v

2020-07-14 10:26:41 -0500 commented answer OpenStudio 3.0.1 Installation Question

Appreciate your help. But here is the problem, I downloaded the OS CLI from your link as well, it's the same as what I'v

2020-07-14 10:26:29 -0500 commented answer OpenStudio 3.0.1 Installation Question

Appreciate your help. But here is the problem, I downloaded the OS CLI from your link as well, it's the same as what I'v

2020-07-13 12:43:30 -0500 edited question OpenStudio 3.0.1 Installation Question

OpenStudio 3.0.1 Installation Question I am trying to install the latest version of OpenStudio 3.0.1. Steps: 1. I down

2020-07-13 12:35:19 -0500 edited question OpenStudio 3.0.1 Installation Question

OpenStudio 3.0.1 Installation Question I am trying to install the latest version of OpenStudio 3.0.1. Steps: 1. I down

2020-07-13 11:42:14 -0500 asked a question OpenStudio 3.0.1 Installation Question

OpenStudio 3.0.1 Installation Question I am trying to install the latest version of OpenStudio 3.0.1. Steps: 1. I down

2020-07-12 10:58:34 -0500 received badge  Organizer (source)
2020-07-12 10:58:08 -0500 asked a question Where can I find the error details for OpenStudio?

Where can I find the error details for OpenStudio? I loaded a DOE baseline model in OpenStudio. It runs OK. But when I t

2019-08-26 09:41:43 -0500 commented question Failing to run simulation when loading DOE Midrise Apartment Prototype in openstudio

No, it still doesn't work. I've used other prototypes instead.

2019-03-27 18:03:56 -0500 commented answer Openstudio Supermarket Reference Model

Thanks! It seems that I have to use Energy+.

2019-03-26 17:14:25 -0500 commented answer Openstudio Supermarket Reference Model

I am using Openstudio and just not so familiar with EnergyPlus. Is there any way that I can load a Openstudio Supermarke

2019-03-26 16:07:55 -0500 commented answer Openstudio Supermarket Reference Model

I am using Openstudio and just not so familiar with EnergyPlus. Is there any way that I can load a Openstudio Supermarke

2019-03-26 15:28:16 -0500 marked best answer Openstudio Supermarket Reference Model

I notice that there is no Supermarket model on DOE website and Openstudio online library seems should be.

Anyone knows where can I download a Openstudio supermarket reference model?

2019-03-21 18:11:46 -0500 asked a question Openstudio Supermarket Reference Model

Openstudio Supermarket Reference Model I notice that there is no Supermarket model on DOE website and Openstudio online

2019-02-21 16:52:12 -0500 edited question Specific Heat of CMU

Specific Heat of CMU In Openstudio, when I downloaded the 8" Concrete Block, whatever solid grouted or unreinforced cell

2019-02-16 17:03:45 -0500 asked a question Specific Heat of CMU

Specific Heat of CMU In Openstudio, when I downloaded the 8" Concrete Block, whatever solid grouted or unreinforced cell

2019-02-03 15:54:32 -0500 marked best answer Water Heater properties

I wanted to build up a model of my own, so I downloaded a DOE prototype midrise apartment from the online library. But when I check the water heater, I found it hard to understand all the properties, especially the Off/On cycle parasitic fuel consumption rate and Off/On cycle loss coefficient to ambient temperature. I mean, where did those values come from (some company website? etc...), or is there a standard or reference for that?

Thanks!

2019-01-31 09:59:47 -0500 asked a question Water Heater properties

Water Heater properties I wanted to build up a model of my own, so I downloaded a DOE prototype midrise apartment from t

2019-01-25 11:56:21 -0500 commented question Failing to run simulation when loading DOE Midrise Apartment Prototype in openstudio

After I click the run button, it starts to run but it shows failure. In OpenStudio box, it says: Initializing workflow.

2019-01-25 11:55:57 -0500 commented question Failing to run simulation when loading DOE Midrise Apartment Prototype in openstudio

After I click the run button, it starts to run but it shows failure. In OpenStudio box, it says: Initializing workflow.

2019-01-25 11:55:33 -0500 commented question Failing to run simulation when loading DOE Midrise Apartment Prototype in openstudio

After I click the run button, it starts to run but it shows failure. In OpenStudio box, it says: Initializing workflow.

2019-01-25 10:44:53 -0500 commented question Failing to run simulation when loading DOE Midrise Apartment Prototype in openstudio

I've tried 2.7.1 version, but still doesn't work. Steps: File==>New==>Save==>Components&Measures==>App

2019-01-25 10:42:43 -0500 commented question Failing to run simulation when loading DOE Midrise Apartment Prototype in openstudio

I've tried 2.7.1 version, but still doesn't work. Steps: File==>New==>Save==>Components&Measures==>App

2019-01-25 09:32:15 -0500 marked best answer DOE prototype Midrise Apartment Water heater size

I loaded DOE prototype midrise apartment and I found that it's using 1150 gal electricity water heater, while highrise apartment is using 600 gal natural gas ones. It makes no sense cause midrise apartment has about 32 units and highrise apartment has around 80 units, and end use percentage by water system for midrise apartment is too high.

How can I fix that and is there any standards for that?

2019-01-24 18:12:22 -0500 asked a question DOE prototype Midrise Apartment Water heater size

DOE prototype Midrise Apartment Water heater size I loaded DOE prototype midrise apartment and I found that it's using 1

2019-01-24 16:12:42 -0500 received badge  Editor (source)
2019-01-24 16:12:42 -0500 edited question Failing to run simulation when loading DOE Midrise Apartment Prototype in openstudio

Failing to run simulation when loading DOE Midrise Apartment Prototype in openstudio Openstudio version 2.7.0; EnergyPl

2019-01-24 16:12:28 -0500 edited question Failing to run simulation when loading DOE Midrise Apartment Prototype in openstudio

Failing to run simulation when loading DOE Midrise Apartment Prototype in openstudio Openstudio version 2.7.0; EnergyPl

2019-01-24 16:12:02 -0500 asked a question Failing to run simulation when loading DOE Midrise Apartment Prototype in openstudio

Failing to run simulation when loading DOE Midrise Apartment Prototype in openstudio Openstudio version 2.7.0 EnergyPlus

2018-12-06 20:34:59 -0500 marked best answer U factor of CMU wall in the components loaded into Openstudio

When I loaded a component "Concrete Block - 8 in. - 105 lb/ft3 - Solid Grouted" from the BCL online, and then run the model, I can see that the U factor with film is 3.15 W/m2K, which is 0.5547 Btu/ft2hR. But per the TEK note 06-02C1 from NCMA, it should be 0.527 Btu/ft2hR. What makes the difference?

Thanks!

2018-11-25 13:43:37 -0500 received badge  Supporter (source)
2018-11-24 21:36:55 -0500 marked best answer Modification on DOE prototypes

I downloaded DOE prototypes from BCL, and selected to create a Midrise Apartment. The prototype is a 4-story, 8 units per floor apartment while we are looking for creating a 2-story, 4 units per floor apartment. So I deleted the mid-floors, moved the top floor down, deleted units in the middle in Sketchup. Then I deleted the used HVAC system in Openstudio. But it can't run showing a FATAL Errors found in processing Energy Management System input.

I am curious that is it OK to delete all content related to the deleted units in the EMS part when I open the Openstudio file with text. Though it runs, I don't know if the result reliable or not since there is no such pattern like this in the tutorial.

2018-11-24 21:36:40 -0500 marked best answer How to create or edit Energy Management System in Openstudio

I was modifying a DOE prototype downloaded from BCL in Openstudio. I came into some errors when I deleted some zones (cause I wanted to reduce the building size and room quantity), I noticed that there are EnergyManagementSystems(EMS) remained in the files(when I checked in text), so I deleted it and the simulation runs. My question is, how comes that I have to editing in text while I was using an Openstudio software? Is there way that I can modify the EMS in Openstudio?

2018-11-24 21:36:40 -0500 received badge  Scholar (source)
2018-11-24 18:02:49 -0500 asked a question U factor of CMU wall in the components loaded into Openstudio

U factor of CMU wall in the components loaded into Openstudio When I loaded a component "Concrete Block - 8 in. - 105 lb

2018-11-12 11:00:46 -0500 commented answer How to create or edit Energy Management System in Openstudio

Thank you! That helps.

2018-11-09 11:33:14 -0500 asked a question How to create or edit Energy Management System in Openstudio

How to create or edit Energy Management System in Openstudio I was modifying a DOE prototype downloaded from BCL in Open

2018-11-08 08:38:08 -0500 received badge  Student (source)
2018-11-07 10:42:22 -0500 asked a question Modification on DOE prototypes

Modification on DOE prototypes I downloaded DOE prototypes from BCL, and selected to create a Midrise Apartment. The pr