Simulation

First off, for this basic example, a dwelling archetype is selected.

id.model <- 1

A weather file (in Energy Plus format: EPW) is referenced.

(var.EnHub.weatherFile <- 
      as.character(tbl.ONS.Region.ref$epw[tbl.ONS.Region.ref$Regions ==
      as.character(tbl.EHS.buildingSet.der$.region[id.model])]))

And the generated IDF is then passed to the argument of the function fnRunEnergyPlus() to perform the simulation (see generation of IDF).

simulation of one single archetype

fnRunEnergyPlus(var.idfModelToRun, id.model, var.EnHub.weatherFile, .Platform$OS.type)

If required, the output table may be directly stored in a data.frame.

tbl.Sim.outputs.der <- fnRunEnergyPlus(var.idfModelToRun, id.model,
                                 var.EnHub.weatherFile, .Platform$OS.type)

To check on the performance of the simulation process, a couple of parameters may be attached to the process: proc.time() and progress.bar. The following example shows their application.

ptm <- proc.time()
opb <- pboptions(type="txt", title="UK SET simulation")
fnRunEnergyPlus(var.idfModelToRun, id.model, var.EnHub.weatherFile, .Platform$OS.type)
fnDisplaySimulationUsedTime(proc.time(), ptm); rm(ptm);

simulation of multiple archetypes

This method applies the function fnRunEnergyPlus() repeatedly (see the script Run_EnergyPlus.R)

ptm <- proc.time()
  opb <- pboptions(type="txt", title="UK SET simulation")
      invisible(pblapply(1:10, fnRunEnergyPlusIteratively, F))
fnDisplaySimulationUsedTime(proc.time(), ptm); rm(ptm);

stand-alone simulation

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See Test