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How to make a parameter changing with timestep and number of run?

asked 2018-01-12 18:21:36 -0500

mifg8 gravatar image

updated 2018-01-13 11:11:45 -0500

I am new at EnergyPlus. I am trying to change the energy consumption of electric equipment with time. I have defined a variable named "=$EE" and want to mention not hourly rather it will change with timestep of 15 minutes. How I can define my time in Schedule:Day:Interval ? I have tried like -

Name: $EE
Schedule Type Limits Name: Any Number
Interpolate to Timestep: No
Time 1: from 00:15 to 00:30 
value until Time 1: 100
Time 2 : from 00:31 to 00:45
value until Time 2: 100

....... It's not working. I need help. Thanks!!!

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What input are you trying to change every fifteen minutes? It is likely that the approach should be to use EMS rather than the ParametricPreprocessor (which uses the =$EE syntax).

JasonGlazer gravatar imageJasonGlazer ( 2018-01-15 07:46:42 -0500 )edit

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answered 2018-01-13 04:28:20 -0500

Avi gravatar image

Look at the Input Output Reference. it should look more like that:

Schedule:Day:Interval,
  $EE,                    !- Name
  Any Number,             !- Schedule Type Limits Name
  No,                     !- Interpolate to Timestep
  until: 00:15,           !- Time 1
  0;                      !- Value Until Time 1 
  until: 00:30,           !- Time 2
  100;                    !- Value Until Time 2
  until: 00:45,           !- Time3
  200;                    !- Value Until Time 3 
  until: 24:00,           !- Time 4
  0;                      !- Value Until Time 4

You must describe 24 hours.

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Thanks Avi. Can you please suggest me how can I change the value in each timestep and in each run. My concept was like this:

Schedule:Day:Interval,
  $EE,              !- Name
  Any Number,   !- Schedule Type Limits Name
  No,                 !- Interpolate to Timestep
  until: 00:15,      !- Time 1
  =$EE1            !- Value Until Time 1 
  until: 00:30,     !- Time 2
  =$EE2            !- Value Until Time 2
Then in Parametric:SetValueForRun
                     Obj1     Obj2
Name:          $EE1    $EE2    
ValueforRun1:100      200

However, it's not working, I need help to figure it out

mifg8 gravatar imagemifg8 ( 2018-01-13 18:20:24 -0500 )edit

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Asked: 2018-01-12 18:21:36 -0500

Seen: 33 times

Last updated: Jan 13