EnergyPlus Detailed hourly load distribtuion
I am looking to get very detailed hourly load contribution for zone broken down by individual components. The “Sensibleheatgainsummary” report only provides an annual Sum. After going through the various outputs available I have shortlisted the following outputs that may provide what I am looking for.
- Lighting: “Zone Lights Convective Heating Rate”
- Equipment: “Zone Electric Equipment Convective Heating Rate”
- People: “Zone People Convective Heating Rate”
- Infiltration: “Zone Air Heat Balance Outdoor Air Transfer Rate”
- Diffuse solar: “Surface Window Transmitted Beam Solar Radiation Rate”
- Direct Solar: “Surface Window Transmitted Diffuse Solar Radiation Rate”
- Window conduction: “Surface Window Inside Face Glazing Zone Convection Heat Gain Rate”
- Wall Conduction: “Surface Average Face Conduction Heat Transfer Rate”
I would combine the Surface level outputs above from each zone.
Further intend to check if the zone is in heating or cooling mode, to obtain the load distribution separately during heating and cooling, from the output:
“Zone Air Heat Balance System Air Transfer Rate”
I am going in the right direction?
This is tricky to do. Each time step, the simulation resolves the load balance and updates the zone air and surface temperatures. It doesn't "remember" whether the heat a surface gained came from lights or window solar radiation or plug loads. The convective rate variables you mention are instantaneous convective load for that timestep - not the sum of convective loads and past radiant loads that are now being realized as convective load.
See Jason's link on the Zone Component Load Summary. This is probably what you want, but it is only for sizing.