Low Temperature Radiant Electric Systems

I used DesignBuilder software to model the building. Now I am trying to design an underfloor heating system “electrical system” for my building on the floor by using energy plus V8.1. I used the template of Low Temperature Radiant Electric Systems under “zone HVAC radiative / convective unit” to do so, I did not make any other change just I imported my IDF file from DesignBuilder to energy plus and use this template by adjusting the parameters as shown in the attached picture. From the result obtained there is no change in terms of temperature and heating energy. It seems as if the system is not working. How can I solve this issue?.

Have you include one floor surface (or floor sub-surface) having a construction with an internal source?

Heated floors or Chilled ceiling components by virtue of the construction being selected as the floor/ceiling in a zone with heated floor or chilled ceiling defined. For example in the case of a heated floor the heated floor component must be added to the appropriate HVAC zones, but also a floor construction with an internal source must be associated with at least one floor surface in that building zone. If you set up a model with a heated floor added to an HVAC zone whose equivalent building zone has any floor surfaces with a floor construction selected not having an internal source then an error will be generated.

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Vmoreno

answered 2016-08-26 08:25:50 -0500

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Thanks for your help, yes now i add construction internal source but i saw there is tube spacing in this template. And my aim is to design system like "Underfloor Heating Mats" by using just electricity as a source of power. i looked at the example file from E+ i found Low Temperature Radiant Electric with reheat which is not exactly same with system i would to design "electrical mats". if you can help me, how can i design like this system "Underfloor Heating Mats"? Thanks in advance