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Run EnergyPlus continuously

asked 2023-05-28 05:56:09 -0600

sz1980's avatar

updated 2023-05-29 16:20:03 -0600

I am trying to build a testbed for a controller and to run EnergyPlus therein for many years - it might be better thought of as a continuous run. I am using several weather file years.

At some point the weather file has to relooped, i.e. when arriving at the end of the last year the testbed restarts from the first day of the first year. As the weather most certainly does not change smoothly from last day last year to first day first year, there could be some irregularities that bias test results. So, my questions are:

  1. How much an influence will such a weather "jump" have on the EnergyPlus run (how large could values change, how long is the persistence)?
  2. How could the loop of weather years be implemented via EMS?
  3. What role does the EnergyPlus state play there?
  4. Has anyone done this before or are there any example files in the repository that might give a good hint?

Thanks for any participance in the discussion.

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answered 2023-05-29 22:04:56 -0600

matbla's avatar

Hi there,

  1. I dont think much influence, considering 1 day is <1% of the year. Perhaps think of it like a TMY file, where each of the 12 months are all from different years and get spliced together for 6 hours either side of the transition. Other than this, the day's weather either side of the transition are totally unrelated. Check the work by Marion and Urban (1995) here, specifically the section called Monthly Interface Smoothing.
  2. Sorry not sure
  3. Sorry not sure
  4. Have you read this post? Might have some hints
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Asked: 2023-05-28 05:56:09 -0600

Seen: 113 times

Last updated: May 29 '23