OpenStudio EnergyPlus - Input Output Objects

Описание

In this video, we will discuss EnergyPlus objects and how to find information about how they function. This will help you understand how OpenStudio / EnergyPlus functions to simulate your energy model. It will also help you to know what inputs are important, what inputs can be left default, and how they might affect your energy simulation.

Transcript:
Today we are going to discuss what an EnergyPlus object is.
EnergyPlus objects are programming pieces inside the EnergyPlus program that execute certain calculations.
For example: this fan is an EnergyPlus object. This DX cooling coil is an EnergyPlus object.
This air loop is an EnergyPlus object. All of these are objects.
Objects have certain programming code associated with them that includes inputs.
The inputs are the items that you adjust on the side here, for this object.
There are outputs as well.
We are going to discuss how to figure out what each one of these objects do.
Let us look at this fan here. You can see right here. On the right-hand pane.
It says OS:Fan:ConstantVolume.
If you want to find out what any one of these inputs does for simulating the object, you can go to the EnergyPlus input-output reference.
Go to the EnergyPlus website: EnergyPlus.net/documentation
There is a lot of documentation for EnergyPlus.
In particular, we will look at the input/output reference.
This document here.
We are looking at Fan:ConstantVolume.
Let us type that in the search here. Fan:ConstantVolume
It finds the Fan:ConstantVolume object in the table of contents.
We will just click the link to go directly to it. Here is where it describes this object.
This object models a constant air volume fan that is intended to operate continuously based on a time schedule.
This fan will not cycle on and off based on cooling / heating load or other control signals.
It goes on to tell you what the inputs are. The name of the fan.
The availability schedule name. It describes what that schedule is used for.
The fan total efficiency. Pressure rise. Maximum flow rate.
It keeps going down to the end and use subcategory.
It tells you what each one of these inputs does.
Also, it tells you what the outputs are for the object.
Outputs for this constant volume fan are: electric power, fan rise in air temperature, and fan electric energy.
You can look at any object and you will see the EnergyPlus object name up in the top of the properties pane.
Look at Coil:Heating:Gas.
We can look up Coil:Heating:Gas to find out how this object is used by EnergyPlus.
I am sorry. It is not opening the link.
We will just click here.
It will tell you exactly what all of the inputs are for that particular object.
Same thing with the outdoor air system object.
If you are interested to find out what all of these inputs are in the properties pane on the side.
Just look up this keyword in the EnergyPlus input-output reference.
For the OutdoorAirSystem, it has one input. Name.
For the Controller:OutdoorAir, there is a lot of different inputs and outputs.
If you want to know what any one of these is used for, look at the EnergyPlus input-output reference.
Thank you. Please like and subscribe.