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I am testing PCM on EnergyPlus and I ran into an error that says:

The input file includes 1 MaterialProperty:PhaseChange objects but the conduction finite difference algorithm is not used anywhere. * ~~~ * Previous materials will be ignored due to HeatBalanceAlgorithm choice.

What does this error mean? Does this mean the PCM was not modelled?

Thank you.

What does the following error mean: "The input file includes 1 MaterialProperty:PhaseChange objects but the conduction f

I did Extensions > OpenStudio User Scripts > Reports > Space Type Report. The area on building story 2 comes out to be 12000sqft and the area on building story 3 is 10000sqft. The geometry of building story 2 and 3 is identical. Why is the reported area so different?

Also, when running simulation on OpenStudio and energyPlus, the area reported is different for both by about 250sqft. How do openStudio and EnergyPlus calculate the floor area? Does this directly affect outputs such as site energy?

Any help would be much appreciated.

When I generate the Space Type Report through the Openstudio plugin on sketchup, there is almost 1200sqft of extra space

I defined a phase change material but it does not show up in construction. Why? I defined a phase change material under

The error message is:

"* Severe * GetSurfaceData: There are 18 degenerate surfaces; Degenerate surfaces are those with number of sides < 3. * ~~~ * These surfaces should be deleted." Is there a way I can find these surfaces in my model and fix this error?

Thank you.

I am getting an error regarding degenerate surfaces. How can I find these surfaces in my model? The error message is: "

I just realized why this error occurs. It happens when a custom construction material is hard assigned to 2 surfaces tha

I am getting a warning that says: "Both surfaces 'Surface 1', and 'Surface 2 reference the same construction 'Wall Inter

I added a thermostat on the openStudio plugin (on Sketchup), however I still get a warning after running a simulation saying that I do not have a thermostat. I get this warning for all thermal zones. This results in 0 heating and cooling.

This is what I see on the openStudio Sketchup plugin: C:\fakepath\Capture.JPG

Thanks.

While reading EnergyPlus results, what is the difference between total site energy and total source energy? Also, what is the difference between net site energy and net source energy?

How to fix error " ** Warning ** SetUpZoneSizingArrays: Requested Sizing for Zone="THERMAL ZONE: Stairs - south", Zone h

How to fix error " ** Warning ** SetUpZoneSizingArrays: Requested Sizing for Zone="THERMAL ZONE: Stairs - south", Zone h

How to fix error " ** Warning ** SetUpZoneSizingArrays: Requested Sizing for Zone="THERMAL ZONE: Stairs - south", Zone h

What is the difference between site energy and source energy? While reading EnergyPlus results, what is the difference b

I am running a simulation on openstudio and I get the following 2 errors:

* Severe * CheckAndSetConstructionProperties: Inside Layer is Air for construction Wall 1 * ~~~ * Error in material F04 WALL AIR SPACE RESISTANCE 2

* Severe * CheckAndSetConstructionProperties: Outside Layer is Air for construction Wall 1 REVERSED * ~~~ * Error in material F04 WALL AIR SPACE RESISTANCE 2

What does this error mean and how can I fix it?

Thanks

Thanks. Can I use any opaque material (ie. opaque spandrel glass - 1/4in found in BCL) ?

What does the error " CheckAndSetConstructionProperties" mean? How can it be fixed? I am running a simulation on openstu

I am assigning custom construction types to interior surfaces. Is there an easier way to assign the construction to the outside boundary condition object rather than doing it manually (they both have the same construction material)?

Yes, this is exactly the behavior I am looking for so I don't have to assign the construction twice. Is there a setting

I am assigning custom interior wall. Is there an easier way to assign the construction to the "Outside Boundary Conditio