Yueyue_Zhou's profile - activity

Yes I feel that you're using your own calculations to talk about the unmet load hours here, the orange lines are the act

In my understanding, Temperature Difference Between Cutout And Setpoint is implemented by changing thermostat setpoints,

In my understanding, Temperature Difference Between Cutout And Setpoint is implemented by changing thermostat setpoints,

Zone time steps: First table: 60mins Second table: 60mins with minimum system timestep set to 10mins Third table: 10m

Zone time steps: First table: 60mins Second table: 60mins with minimum system timestep set to 10mins Third table: 10mins

E+ is not handling precooling thermostat correctly in hourly simulation Hi, all, I am running an hourly simulation for

E+ is not handling precooling thermostat correctly in hourly simulation Hi, all, I am running an hourly simulation for

I have created an issue on EnergyPlus github repo

Thanks Richard, yes the capacity will vary by changing airflow rate, but is coil heating energy (delivered heating) supp

GSHP heating coil energy not consistent when running at non-rated air flow rate I am modeling a gshp system in EnergyPlu

Maximum Fraction of Outdoor Air Schedule doesn't change airflow in the loop, it just applies desired fraction of OA. As

Attaching your sample file (idf or whatever format you have) would also be helpful to describing the system you're model

@Abarker Attaching your sample file (idf or whatever format you have) would also be helpful to describing the system you

Attaching your sample file (idf or whatever format you have) would also be helpful to describing the system you're model

Hi, there,

I need some help on a case where I want to change the cooling and heating coil capacities dynamically under some condition (through EMS program). Systems are fixed-sized in idf, I've tried the Unitary HVAC Design Heating Capacity and Unitary HVAC Design Cooling Capacity, but they're not working. Is it feasible to actuate capacities in E+? Any suggestions?

Thanks!

Test file if you're interested:

1. With Unitary HVAC Design Capacity actuators
2. Without actuators

Thanks, Aaron. Your answer is very useful!

Thanks, I did so but I didn't find useful actuators so I was wondering whether it's something feasible to do via EMS.

Actuate coil capacities with EMS? Hi, there, I need some help on a case where I want to change the cooling and heating

See here a related issue using ZoneControl:Thermostat:StagedDualSetpoint with AirloopHVAC:UnitarySystem object.

This problem occurred because you're not attaching your HVACTemplate:Thermostat to HVACTemplate:Zone:IdealLoadsAirSystem

Did you check example files in EnergyPlus repository? https://github.com/NREL/EnergyPlus/blob/develop/testfiles/StripMal

@y.tanaka It won't be hard if you're using OpenStudio app to create your PAT seed model, there's an option of "Turn On I

Besides what answered by Eric which is very helpful, I'll suggest also running an extra simulation with IdealLoadsAirSys

Don't have to, look at Field: Interpolate to Timestep

Don't have to, look at (Field: Interpolate to Timestep)[https://bigladdersoftware.com/epx/docs/9-1/input-output-referenc

If you're simply expecting a temperature-based control of air conditioning, you could use a Dual Setpoint (Heating and

See this bug-fix Pull Request #7286 might be helpful to address your problem.

Adding Output:Table:Monthly might be helpful. A table for the meter you specified in the object would be added to the ht

Adding Output:Table:Monthly might be helpful. A table for the meter you specified in the object would be added to the ht

Hi, I am currently working on adding new choices for water heating desuperheater object. Look at this pull request for m

Hi, I am currently working on adding new choices for water heating desuperheater. Look at this pull request for more det

E+ pull request created to address this issue. Thank @rraustad for guidance!

E+ pull request created for addressing this issue. Thank @rraustad for guidance!

As far as I know, the IdealLoadsAirSystem didn't build a full HVAC system and assumes 100% efficiency. It won't generate

As far as I know, the IdealLoadsAirSystem didn't build a full HVAC system and assumes 100% efficiency. It won't generate

As far as I know, the IdealLoadsAirSystem didn't build a full HVAC system and assumes a 100% efficient system. It won't

Unreasonable results for water heating desuperheater Previously, I modeled a water system with desuperheater in Model 1

Unreasonable results for water heating desuperheater Previously, I modeled a water system with desuperheater in Model 1

Unreasonable results for water heating desuperheater Previously, I modeled a water system with desuperheater in Model 1

Unreasonable results for water heating desuperheater Previously, I modeled a water system with desuperheater in Model 1

If you are using EMS to model phase-changing constructions, there's an idf doing electronic glass window which might be