Roccan's profile - activity

Baseline ventilation with AirflowNetwork Object Hello! I am simulating a glass house that whould be used for various ev

Thank you for the comprenhensive answer! I will take a look in the weather file, but I assume that it's fine as it is av

Ok, try using the object ZoneHVAC:IdealLoadsAIrSystem. There you'll define some basic parameters of the ideal system as

I don't know if I understood you well, but you can simulate your room with an ideal heating system, where you only defin

I don't know if I understood you well, but you can simulate your room with an ideal heating system, where you only defin

AIrflowNetwork - set up a limit for ventilation Hello! I used the AirflowNetwork objects to simulate a naturally ventil

Ok, now I have found that you can assign an opening of a window through the AirflowNetwork:MultiZone:Surface. However, I

Defining fixed and openable windows Hello! I am trying to simulate a greenhouse that would occasionally be used as a Re

First you create your PCM as a material object (as you would create any other material), then you need to define the pha

Thank you very much!

Sorry, I didn't specify the issue. I don't have this object when I'm in the IDF editor. Maybe I'm using an outdated E+ v

Hello!

I am doing a PCM simulation in energy plus. To do so, I'm using the object MaterialProperty: PhaseChange. The object itself is very trivial and the input parameters are straightforward, however, the PCM I am trying to simulate has two different histograms. One Enthalpy-Temperature diagram for melting and another for the solidification. To go along, it has different thermal conductivity, density and specific heat values for both solid and liquid states. What is confusing me is that E+ requires only one set of temperature-enthalpy inputs. Which parameters am I supposed to enter, the solidification or melting? Is there a possibility to enter both? For my base-case simulations I have used the melting histogram. As for the thermal conductivity, I believe it is solved with the object MaterialProperty:VariableThermalConductivity, however density and specific heat remain with one input only.

What would be your suggestion to keep the simulation as accurate as possible?

Thank you in advance!

Thank you, this exactly what I needed. Do I have to update my energy plus, or I can just add the code in the text file

Uncertainty with Energy plus Enthalpy inputs for PCMs Hello! I am doing a PCM simulation in energy plus. To do so, I'm

It is not the "hide rest of model" button. However it was on when the situation happened, but disabling it didn't help after all. I also have troubles understanding how my other files got corrupted. In the meantime I started working all over again and open studio seems to be working fine. I will send you the files now, thank you for the quick reply.

I was working in sketchup with the open studio plugin on a model of a building that was almost ready to be exported to idf, just needed to add some small things as obstructions and assigning thermal zones.. anyways, the model had projected windows, intersected and matched surfaces and then I created a shading surface group. After double-clicking on it in order to draw an obstruction, everything disappeared. My model was completely gone. Of course, without saving I opened my last saved file and that one was somehow corrupted. Then I went one step behind, again corrupted. Then I opened an open studio file that was finished and exported and was working perfectly fine and it was also corrupted.

When I enter the inspector, surfaces are there, in sense that some 170 surfaces are listed, but nothing is visible. I tried to unhide all, didn't work. Restarted my pc, didn't work. Opened many different files, nothing works. I am very worried now since I have a deadline for my project and this (whatever it is I hope it's an easy-fix) messed up all my files.

Hello!

I was working in sketchup with the open studio plugin on a model of a building that was almost ready to be exported to idf, just needed to add some small things as obstructions and assigning thermal zones.. anyways, the model had projected windows, intersected and matched surfaces and then I created a shading surface group. After double-clicking on it in order to draw an obstruction, everything disappeared. My model was completely gone. Of course, without saving I opened my last saved file and that one was somehow corrupted. Then I went one step behind, again corrupted. Then I opened an open studio file that was finished and exported and was working perfectly fine and it was also corrupted.

When I enter the inspector, surfaces are there, in sense that some 170 surfaces are listed, but nothing is visible. I tried to unhide all, didn't work. Restarted my pc, didn't work. Opened many different files, nothing works. I am very worried now since I have a deadline for my project and this (whatever it is I hope it's an easy-fix) messed up all my files.

Thank you in advance for any help!