Reproduction of autosized simulation: Baseboard:RadiantConvective:Water

asked 2019-08-22 04:13:28 -0500

scrox gravatar image

updated 2019-08-27 09:59:26 -0500

I am working on a real-time simulation (for residential systems in Europe). Therefore, I don't want to always run autosizing.

So, I try to reproduce the results from an autosized simulation. Here you can find the eplus files.

Files called autosize belong to my reference simulation which I like to reproduce.

Files called manual sizing belong to an example in which I failed to reproduce the results.

There are some autosized variables which I am not sure where to find them:

  • ZoneHVAC:Baseboard:RadiantConvective:Water Heating Design Capacity
  • Sizing:System Design Outdoor Air Flow Rate
  • Sizing:System Cooling Design Capacity
  • Sizing:System Heating Design Capacity
  • WaterHeater:Mixed Source Side Design Flow Rate (this variable seems to be not used)

In my example, I tried to use the CapacityPerFloorArea instead of the Heating Design Capacity method for the baseboard. I also tried other iterations to no avail.

There seems to be a bug in the autosizing reporting for baseboards. U-Factor times Area is reported, but no Heating Design Capacity.

Does anybody has an advice? BTW, I am not an expert in e+ and thus general comments on the idf are welcome.

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