ENERGY PLUS
SIMULATION TRAINING
OVERVIEW
Building
Zone
… more zones
Zone
Zone
Surface
Surface
Surface
Construction
Material
Material
Material
… more surfaces
Only one construction per surface
Material
… more materials
STEP TOWARDS THE COMPUTER
Step 2
: Zone the building
Effect of zoning
STEP TOWARDS THE COMPUTER
Step 2
: Zone the building
Effect of zoning
STEP TOWARDS THE COMPUTER
Step 3.2. : Define equivalent surfaces as desired
Example
• Combine all windows on a given
exterior surface into a single window
training exercise & assignment
exercise
• Model
= Hypothetical building 40cm x 40cm (1 floor, 5 zones)
• Building Type
= Office Building
• Material & Construction = Typical construction type for office building
Hebel Wall, Concrete floor, Clear glass
• WWR
= Typical office building in Jakarta (70%)
• Occupancy
= Office occupancy in Kepmen PU
• Lighting
= Office lighting in SNI
• Equipment
= Office equipment in SNI
MODELLING
in open studio
Note = no. of page is the page of the PDF (not the real page)
Open Sketchup 7
Make the model using Open Studio as a Sketchup’s plugin
Operate all of your action using
Plugin Legacy OpenStudio
• If you want to open the old file, use
PluginLegacy OpenStudioOpen
•If you want to save or save as your
session, use PluginLegacy
OpenStudioSave/Save as
Sketchup 7’s
Plugin
Adjust the unit dimension, Window-Model info- unitmeter/milimeter,etc
You can choose in
meter/centimeter/milimeter, etc.
Import baseplan from
AutoCad
Choose the
file
Baseplan imported
How
zone..to make new
Start the modelling,
Make every zone using “New Energy Plus Zone”. Trace every line clockwise and pull up
Energy Plus
Zone
How
to make
plenum
After created new zone, make the plenum as a assumption of ceiling. Copy zone, put at the top of
Choose the zone as a plenum, pull down the zone appropriate with high of the ceiling to floor
How
to make the same material with surface
matching..
Surface matching
After zone and plenum was created, match the surface between roof (at the zone) and floor (at the
plenum)
Render by Boundary Condition
Change the view style using “Render by Boundary Condition”. If the surface look “green” it’s
completely match
Do the same way in another zone until finish.
All zone in the same level was finished
How to make a glass/window..
Select the zone that contain window/glass. Then double click.
Select the surface
Offset the surface appropriate with the size of the
window/glass
Window was created
Do the same way in another surface that contain window/glass
How to make a multiply floor or typical floor..
If you want to make a multiple floor or just move the zone to the other level please select zone to be
moved.
Zones in typical floor
New EnergyPlus Shading
Group
To assume that this modelling as a typical floor, make an
adiabatic zone to assume another floor below or above
the typical floor using “New EnergyPlus Shading Group”
Adiabatic
How to rename the zone..
TFZ1_NORTHZONE
To rename the zone, please select the zone and then click “show object info window”.
Rename in the box “name” with TFZ1_NORTHZONE"
Floor name
(Typical
Number of
Zone
Name/Zone
PL_TFZ1_NORTHZONE
To rename the plenum zone, please select the plenum zone.
Rename in the box “name” with PL_TFZ1_NORTHZONE"
Plenum
Zone
Name/Zone
TFZ2_NORTHEASTZONE
PL_TFZ2_NORTHEASTZONE
Do the same way in zone. If there are unconditioned zone (Non AC), you can
rename with
Unconditioned zone
(UCT=Unconditioned
UCT_1TOILET
Number of Zone
Zone
Name/Zone
All zone already rename
How to rename the surface..
TFZ1_NORTHWESTZONE
Select the zone, double click and activate the zone
NW_TFZ8
Select the surface, rename with NW_TFZ8
Direction toward
(NW=North Wall)
Zone Name/Zone
Function
G_NW_TFZ8
Select the window surface, rename with
Glass
G_NW_TFZ8
Direction toward
(NW=North Wall)
Zone Name/Zone
Function
PL_NW_TFZ8
Select the plenum surface, rename with
Plenum
PL_NW_TFZ8
Direction toward
(NW=North Wall)
Zone Name/Zone
Function
WW_TFZ8
Select the surface, rename with WW_TFZ8
Direction toward
(WW=West Wall)
Zone Name/Zone
Function
G_WW_TFZ8
Select the window surface, rename with
Glass
G_WW_TFZ8
Direction toward
(WW=West Wall)
Zone Name/Zone
Function
PL_WW_TFZ8
Select the plenum surface, rename with
Plenum
PL_WW_TFZ8
Direction toward
(WW=West Wall)
Zone Name/Zone
Function
How to change the construction type..
You should change the
Plenum
construction of floor and
roof in the plenum zone
that has the same material
with the zone under and
above the typical floor
Zone
Plenum
Type : Floor
Construction : Change from interior floor to
interior ceiling
Plenum
Type : Ceiling
Construction : Change from interior ceiling to
interior floor
If you create adiabatic zone above the plenum, change “outside
boundary condition” of ceiling plenum surface from outdoor to adiabatic.
Then, uncheck “sun exposed” and “wind”
If you create adiabatic zone under the active zone, change “outside
boundary condition” of ceiling plenum surface from outdoor to adiabatic.
How to create default internal load..
Select active zones
(zone that will be use HVAC
Zone
Load
Load using OpenStudio just to check this modelling error or not, for more detail input of internal
load you can use EnergyPlus.
Load using OpenStudio just to check this modelling error or not, for more detail input of internal
load you can use EnergyPlus.
Load the internal load using “reset to default office”  “apply to selection”  OK
DON’T FORGET TO SAVE AS FROM ORIGINAL FILE AFTER LOAD
THE INTERNAL LOAD !!!
How to run or simulate in OpenStudio..
Run EnergyPlus
Simulation
Next step is run the simulation using OpenStudio. Click “Run EnergyPlus Simulation”, choose the
weather file  uncheck “annual simulation”  Run only one day in January 1st  Start Day
“Wednesday “ or “Use Weather File”  Apply  Run
You will see new window above that show simulation in progress.
If you find “severe” there are something error with your modelling. Follow the severe information
when simulation finished. Justified errors on your modelling until there aren’t error yet.
Tentang output file yang dari stu idf menjadi beberapa file
INPUT DETAIL
in energy plus
Note = no. of page is the page of the PDF (not the real page)
How to open and edit file in EnergyPlus..
First step using energy plus, choose “Energy Plus Input Data File” (Format file : -------.idf) using EPLaunch. Then edit the file using “Edit-Idf Editor”
Basefile
1. Most important thing is Save As the file (File-Save As- Rename the file)
2. Open the basefile “35-35_Hipotetik_SHGCstudies_IFC-WWR60-SHGC0.2-CSG-1DAY.idf” or
another file to input the base data. (File-Open-Choose the basefile)
First Class in EnergyPlus is “Version”. The default input depend on your energyplus version. You
don’t need to change the input.
Basefile
Simulation Control
Select what you need to control your simulation.
If you calculate the OTTV change “Run Simulation for Sizing Period” from “Yest” to “No”
If you calculate IKE change “Do System Sizing Calculation” and “Run Simulation for Sizing Period”
Basefile
Building
This class is for identify name of your building/project.
You just need to change sub class “Name” and “Solar Distribution” .
Subclass name can be change with your project name. Subclass solar distribution can be change
with “FullExteriorWithReflectance” (If you want more detail about this class, see IO Reference page
Basefile
Shadow Calculation-SurfaceConvectionAlgorthym:InsideSurfaceConvectionAlgorthym:Outside-HeatBalaceAlgorthym
This is default input data.
Basefile
Timestep
Number of timestep on each hour.
Usually use 2 or 4.
Basefile
Convergence Limits
This is default input data.
You just need to copy from basefile without change anything.
Basefile
Site Location
It’s to identify location of your project. You can input the “Latitude”, “Longitude”, “Time Zone” and
“Elevation” from weather file.
First step to get the data from weather file you should convert the weather data to csv format.
Basefile
SizingPeriod:Design Day
It’s identify the design day we choose depend on weather file. This is default input data.
You just need to copy from basefile without change anything.
Basefile
RunPeriod
It’s identify period for running simulation. Copy from basefile and you can change the date or the
time depend on your needs. Example : Run for OTTV and IKE you should input allday in one year
from January 1st until December 31st.
Basefile
RunPeriod Control:SpecialDays
Remove default input data because not usually happen in Indonesia. (Remove one by one using
“Del Obj”-copy all file from basefile and “Paste obj”)
You just need to copy 14 subclass from basefile without change anything.
Basefile
Run Period Control : Daylight Saving Time
Remove this class.
Basefile
Site Ground Temperature Building Surface-Site Ground Reflectance-ScheduleType Limits
This is default input data.
You just need to remove default input from open studio and copy from basefile without change
Basefile
Schedule Compact
It’s to manage your schedule operation. You make your own schedule depend on your needs.
You just need to remove default input from open studio and copy from basefile without change
How to make schedule compact..
Schedule Compact
Example  Schedule Name: “Actv Sch-5days”, Schedule Type Limits “Fraction” (for range 0-1) “Temperature”
(range -60°c until 200° c) “on/off” etc. , Field 1 for the specific date (Usually all day in one year “Through 12/31),
Field 2 for the time: “until 08.00” (it’s depend on your needs), Field 3 : for identify the days of weekdays or
weekend or holidays, Field 4 : for the fraction (0 means no activity an 1 means full activity). Do the same way until
Schedule Compact
If on the weekend or holiday you have different schedule, please detail the time same way with in a weekdays.
Basefile
Material and Material Air Gap
It’s to defines material you want to use. You can copy from basefilebutyou need to remove the
default material from Open Studio. If you want to input new material you just need to input specific
data of the material. You can get the material specific data of material from brochure/internet/design
Basefile
Window Material Glazing
It’s to defines glass material you want to use. You can copy from basefile. If you want to input new
glass material you just need to input specific data of the material. You can get the material specific
Basefile
Construction
It’s identify the construction layer. You can define your own layer or just copy from basefile if the
construction layer same with basefile. The most important subclass you should notice are “interior
floor”, “Exterior wall”,”interior ceiling” and”exterior window”
Construction
Interior Floor layer : “ID Concrete Reinforced 2%Steel”-”ID Cement Sand Render”-’ID Ceramic”
Construction
Exterior Wall : “ID Plaster Wall”-”ID Hebel Block”-”ID Plaster Wall” for insulation wall
“ID Glassblock” for no insulation wall
Construction
Interior Ceiling : “ID Gypsum Plasterboard”
Construction
Exterior Wondow : select window you use.
Basefile
Global Geometry Rules
This is default input data.
You just need to remove default input from open studio and copy from basefile without change
Zone
This is class that contain number and name of zones you have made.
ZoneList
It’s to clasify zone based on activity
Basefile
People
This is internal input data. You get the infromation from KEPMENPU_441_1998 page 73.
.
Basefile
People
This is internal input data. You get the infromation from KEPMENPU_441_1998 page 73.
So you should remove default input from open studio and change with basefile input data. Ebery
object fill with the name of zonelist. For office you should fill 0.1 people/m2.
Basefile
Light
This is internal input data. Input name using zone list name.
For LED: 5watt/m2, t5: 8 watt/m2, t8: 12 watt/m2, t12: 15 watt/m2
Basefile
Electric Equipment
This is internal input data. Input name using zone list name.
Using default input 10 watt/m2 and Fraction Radiant 0.2.
Zone Infiltaration: Design Flow Rate
This is internal input data. Input name using active/ AC zone list name.
Using default input 0.6 1/hr
Zone Ventilation : Design Flowrate
This is internal input data. Input name using zone list name. One zone list name to two pbject.
Using default input 0.00236 m3/s-person for Zonelist name ventilation per person and 0.000305 for
Zonelist name ventilation per area.
HVAC Template thermostat
It’s identify termostat temperature for HVAC. You sould input Cooling Setpoint schedule in schedule
compact to define number od temperature of setpoint. For Heating “Always Off” because we didn’t
HVAC Template Zone : Ideal Load Air System
This is one of the HVAC system we usually use. For another detail of input HVAC system you can
see file “HVAC Studies”.
Output Variable Dictionary
This is default input data.
You just need to remove default input from open studio and copy from basefile without change
Output Table Summary Report
This is default input data.
You just need to remove default input from open studio and copy from basefile without change
anything.
Output Content Table Style
This is default input data.
You just need to remove default input from open studio and copy from basefile without change
Output Variable
This is default input data.
You just need to remove default input from open studio and copy from basefile without change anything.
Of if you want to change your report you can choose one of the list. For OTTV you can input “Surface Window
Heat Gain Rate” and “Surface Inside Face Conduction Heat Transfer Rate”. For specific data you can input the
Another output variable..
Output Variable
Of if you want to change your report you can choose one of the list. For OTTV you can input “Surface Window
Heat Gain Rate” and “Surface Inside Face Conduction Heat Transfer Rate”. For specific data you can input the
name of surface.
For Cooling Load you can select “Zone Ideal Load Supplay Air Sensible Cooling Rate” and “Zone Ideal Load
Output Diagnostic
You just need to remove default input from open studio and copy from basefile without change
anything.
Run the Simulation
Complete the input data and run the simulation. Before you run make sure to select the weather
file.
How to checking the result..
Checking the Energy Result
Checking the Energy Result
Checking the Energy Result
FINISH
THANKS