when i create OpenStudio measures, i find it is possible to create Energyplus measure? How do i implement the Energyplus measure? Do i need to run the E+ measure through OpenStudio, which will finish the desired task in the back? Or do i need to import the E+ measure into energyplus to do the desired task? But it seems no place to import energyplus measure in E+.
You can run the EnergyPlus measures in the OpenStudio application and in PAT. In OpenStudio you have to do this in the "Measrues" tab. You can't run an EnergyPlus measure using "Apply measures now". The reason for this limitation is that an IDF isn't typically generated until you kick off a run. As part of the runtime workflow the OSM file gets translated to IDF, then any EnergyPlus measures placed in the workflow are run, then the resulting IDF is passed to EnergyPlus for simulation. After EnergyPlus is done, any Reporting measures will run.
Here is a link to a view of measures tab in OpenStudio application and PAT. You can also run EnergyPlus measures using The OpenStudio cloud based spreadsheet analysis, and using the command line on your computer, outside of any OpenStudio GUI's.
You may have already spotted this example measure in the BCL. EnergyPlus measures are dragged and dropped in OpenStudio applications like other measures, the big difference is that they run after the OpenStudio model is translated from OSM to IDF, but before the simulation runs. They are typically used when you need access to something that has yet to be wrapped as an OpenStudio object. The above PV example was a good use case, but PV objects should be showing up in version 1.9.1 or thereabouts. Another good use case is for EMS code. We've been writing a number of EMS measures that haven't shown up in the BCL yet, but should appear shortly as examples of how to inject custom control logic into your model.
Asked: 2015-09-23 11:20:16 -0500
Seen: 1,078 times
Last updated: Sep 23 '15
As David and Larry point out below, you can run EnergyPlus measures using the OpenStudio tools. The changes to the EnergyPlus model will occur at the right time before EnergyPlus simulation EnergyPlus (and related tools like EP-Launch) do not provide any functionality for running measures.