kem's profile - activity

To interact with E+ during runtime you can use either plugin or library API - here is the starting point: https://biglad

Hi Jonathan, the simulation is controlled by the SimulationControl section as well. SimulationControl, Yes,

So. After waiting a while my conclusion is: There is no way to recognize the simulation is done in the Python Plugin mod

Thank you. The point is we already have quite complex solution using plugin mode. So I am trying to investigate solution

EnergyPlusPlugin - How to dispose resources after simulation? Hi, is there any method of EnergyPlusPlugin which is call

I don't know the details of your controller. The usual cause of "unmet' set-point is saturated action variable (controll

Ad simulation step - you can specify the Timestep parameter in the idf file. If you just want to generate data, you also

What about ZoneMixing object - https://bigladdersoftware.com/epx/docs/9-6/input-output-reference/group-airflow.html#zone

The solution we adopted: Configuration of Python Plugin: self.api.exchange.get_actuator_handle( state, "System Nod

I would like to reset the condenser water supply temperature via Python Plugin. I have experience with resetting following values: Schedule:Compact > Schedule Value; Pump > Pump Mass Flow Rate ; Fan > Fan Air Mass Flow Rate

What I did: I have found nice examples of condenser water reset in E+ Example folder (files CoolingTower_VariableSpeed_CondEntTempReset.idf CoolingTower_VariableSpeed_CondEntTempReset_MultipleTowers.idf CoolingTower_VariableSpeed_IdealCondEntTempSetpoint.idf CoolingTower_VariableSpeed_IdealCondEntTempSetpoint_MultipleTowers.idf

Problem: All these examples use SetpointManager:CondenserEnteringReset or SetpointManager:CondenserEnteringReset:Ideal object to reset the temperature. The issue is I don't know what E+ variable to use to be an actuator handle.

I tried to use OutputVariable as a handle but failed

self.api.exchange.get_actuator_handle(state, "Output:Variable", "System Node Setpoint Temperature", "Condenser Tower", "Outlet Node")

returns -1 (=> it failed)

Could you help me to find right solution for resetting the condenser water temperature?

EDIT: Copying relevant sections from original file CoolingTower_VariableSpeed_IdealCondEntTempSetpoint.idf (see installation/ExampleFiles) where I want to reset the condenser tower outlet temperature.

SetpointManager:CondenserEnteringReset:Ideal,
  Condenser Water Loop Setpoint Manager,  !- Name
  Temperature,             !- Control Variable
  12,                      !- Minimum Lift {deltaC}
  32,                      !- Maximum Condenser Entering Water Temperature {C}
  Condenser Tower Outlet Node;  !- Setpoint Node or NodeList Name
...
CoolingTower:VariableSpeed,
  Central Tower,           !- Name
  Condenser Tower Inlet Node,  !- Water Inlet Node Name
  Condenser Tower Outlet Node,  !- Water Outlet Node Name
  YorkCalcUserDefined,     !- Model Type
...
Output:Variable,Condenser Tower Outlet Node,System Node Setpoint Temperature,Hourly;

The solution we adopted: Configuration of Python Plugin: self.api.exchange.get_actuator_handle( state, "System Nod

CondenserEnteringReset via PythonPlugin I would like to reset the condenser water supply temperature via Python Plugin.

Thank you @bonnema for your suggestion. I am not the expert in idf language but it seems to me the SetpointManager has n

CondenserEnteringReset via PythonPlugin I would like to reset the condenser water supply temperature via Python Plugin.