Geraldo Pithon's profile - activity

In the report from EnergyPlus, what's the difference from the HVAC Sizing Summary:Zone Cooling Load and the Cooling Coils:Coil Load ?

I thought that if I had a coil for only one zone, the COIL LOAD should be the same of the ZONE LOAD, but this isn't happening in my model with a water cooled system.

What could be the additional load in the coil besides the thermal load zone?

Hello guys!! @Damian and @macumber Is this really working now with the changes in OpenStudio platform. To have OpenStudi

I'm working in a Data Center simulation project.
I have a coil for only one room, which is a Data Center. The Data Center doesn't have people and ventilation, so the Latent Load should be very small. I'm using a coil with autocalculate to calculate the needed capacity for the coil.
However, the Nominal Sensible Heat Ratio of the coil in the result Equipment Summary:Cooling Coils is 0.7. It is too high for a Data Center, so I think that there is an error.

How should I know what is the thermal latent load of the coil? Is it probable to be an error?

Hello All, I'm simulating a model with water cooled system.
I have only one chiller in my OpenStudio library. So, I want to expand my OpenStudio library in three ways:

1) Importing one Chiller from components BCL: I´ve already found chillers in the web BCL, but I don't know how to import them. I need to import from web BCL because in my connection it is not possible to access BCL directly from OpenStudio. I´ve already tried to paste files that I downloaded from online BCL in the directory "Measures" of OpenStudio, but it ddn´t work. Which folder should I paste the files from online BCL???

2) Import one chiller from EnergyPlus library: I want to import one component chiller directly from .idf EnergyPlus library. Is it possible? Maybe with one EnergyPlus measure?

3) If it isn't possible to import a component chiller from EnergyPlus library, I want to create a new chiller in OpenStudio copying the coeficients manually to OpenStudio.

So, could you tell how to expand my OpenStudio library components?

Thanks!!!

Hello,

I want to import components of materials direct from BCL web.

So, how can I to introduce the components in my OSM?
Is there some folder to paste the files downloaded from BCL web?

Thanks!

Unit inducing mistake when you set a Cooling Tower in OpenStudio / EnergyPlus Only to inform other users, if you are set

@Julien Marrec, I have the same doubt. I did exaxtly you recomend, with the same systems, but the output Zone Air Relat

How can I set a constant boundary condition in a surface?

I already search in EnergyPlus manual and this function would be set Outside Boundary Condition to Other Side Coefficients and use the constants to set the boundary. Althought, when I try to set OtherSideCoefficients in OpenStudio, it is not possible.

Beyond that, I don't know how to set all parameters of OtherSideCoefficients only using the field Outside Boundary Condition Object.

Thank's @Julien Marrec! Perfect! I'm going to study this! Let the games begin!

Thank's @Julien Marrec! Is it difficult to open a terminal? Some manual for this? Do I need to install something? Where

Thank's @Julien Marriec! Is it difficult to open a terminal? Some manual for this? Do I need to install something? Wher

Ok! Is it difficult to open a terminal? Some manual for this? Do I need to install something? Where do I begin?

Thank's @Julien Marrec. Can you help me with some manual about using API? Where do I write this code? I don't know anyt

Thank's Julien Marrec. Can you help me with some manual about using API? Where do I write this code? I don't know anyth

Thank's Julian. Can you help me with some manual about using API? Where do I write this code? I don't know anything abo

Constant boundary condition How can I set a constant boundary condition in a surface? I already search in EnergyPlus ma

Can someone help me directing to some step-by-step to use this? I don't know about API, code or write measures, but I c

I'm simulating a DataCenter equipped with CRACs. These devices have a very high rated air volume flow rate. For the equipment I'm using the ratio is 0.00006822 m³/s per W (0.2456 m³/h per W or 865 m³/h per TR).

The problem is that the equipment Coil:Cooling:DX:SingleSpeed accepts a maximum 0.00006041 m³/s per W and when I put a higher flow relation than this, EnergyPlus reports an error that the flow ratio by load is higher than the maximum acceptable.

** Severe  ** Sizing: Coil:Cooling:DX:SingleSpeed "CRAC - DATA CENTER": Rated air volume flow rate per watt of rated total cooling capacity is out of range.
   **   ~~~   ** Min Rated Vol Flow Per Watt=[4.027E-005], Rated Vol Flow Per Watt=[6.821E-005], Max Rated Vol Flow Per Watt=[6.041E-005]. See Input Output Reference Manual for valid range.

Is there any other component in EnergyPlus that properly represents a CRAC and supports a greater rated air volume flow rate ratio?

@Anna Osborne, unfortunately I didn't solve completely this. In the end, I was forced to do everything right in the LEED Online platform.

macumber , I tryed to use SketchUp 2017 PRO without license, but it blocked me after some time.

So, I tried too to download the SketchUp 2016 Make in the link that you sended, but it is not more there.

Some another suggestion?

I enjoy to ask if exist some plan to integrate OpenStudio to another GUI, how Autodesk Revit?

Thank's!!

Can I do some change to open a OS model that was saved in a newer version of the OS?

I did not change in the model, only saved unintentionally in a newer version (1.12.6) and now I can not open in the most stable version (1.11).

In the HVAC Sizing Summary, the OA Minimum Outdoor Air Flow Rate is different from calculated in Outdoor Air Summary and from the ploted.

@Aaron Boranian thanks for your answer!! I think this is not the problem, because I ploted the Mechanical Ventilation and it is constant and equal to the input (see the new picture in the question) and the Supply flow is bigger than the Outdoor Air Flow in the HVAC Sizing Summary.