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[EnergyPlus_Support] Step response of model



Hello everyone

We now have successfully modelled a two story house with basement and are now trying to get a step response out of it. What we did is we have produced a weather file that suddenly changes from 0 to a higher temperature (ground temperature as well) with all other variables equal to zero and have our building simulated with it. There is no AC in our house, but the response shows that the house will never reach the outdoor temperature, but stays steady some degrees below it. For example, if the step is from 0 to 50 degrees celsius, the mean temperature within the house stays at around 44 degrees.

Does someone have an explanation for this phenomena? Maybe because the algorithms (DOE-2 outdoors and TARP inside) are not fitted for such a theoretical problem?

Thanks, Jan



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