Bárbara Torregrosa's profile - activity

Cooling coil of Unitary System doesn't follow setpoint Hello. I built an idf file in energyplus v22.2 to simulate a cool

Thank you very much for your answer. I have the same kind of graph shown in Figure 8, but in my case the power consumpti

VRF performance curve: EIR modifier for PLR > 1 The VRF curve system model in energyplus has a specific performance c

Energyplus version 9.6 can't run on Windows 7 I can't run the new EnergyPlus version 9.6 in several computers that use W

Energyplus version 9.6 supported OS I can't run the new EnergyPlus version 9.6 in several computers that use Windows 7 w

Energyplus version 9.6 supported OS I can't run the new EnergyPlus version 9.6 in several computers that use Windows 7 w

I found significant differences in the results of energy use of a simple building between EnergyPlus 9.3 and 9.4. The differences are related with the windows, since the same building without windows shows negligible differences between versions. I use the WindowMaterial:SimpleGlazingSystem, so I guess the differences come from this issue (https://github.com/NREL/EnergyPlus/pu...).

My building is just a 10x10m square containing an Ideal Loads Air System. The "District Heating energy use" decreases from version 9.3 to 9.4 between 0.7% and 8.8% depending on the size, orientation and shading of the windows. While the "District Cooling energy use" increases between 0.8 and 3.8%. Differences are bigger when the building "gets more sun" (= south-facing windows, larger windows, less shading). When I add a WindowShadingControl with the option ExteriorShade, there are practically no differences in the results, as in the case without windows.

My question is: is this the expected behavior of the WindowMaterial:SimpleGlazingSystem after the fix #8001? Or should I change any parameters related to the windows to keep them working as before? I used the transition tool to get the idf files for both versions 9.3 and 9.4, from version 9.1 (I was actually comparing v9.1 with v9.5 but I located the relevant differences between versions 9.3 and 9.4).

Differences in results between EnergyPlus 9.3 and 9.4 I found significant differences in the results of energy use of a

Sorry for the delay, I hadn't seen your comment. Probably you already found the formula. At that time, I was using Energ

HeatPump:WaterToWater:EIR models' curves report wrong values I'm using the water-to-water heat pump models HeatPump:Wate

HeatPump:WaterToWater:EIR models' curves report wrong values I'm using the water-to-water heat pump models HeatPump:Wate

EnergyPlus version transition Rules 9.1 to 9.2 I downloaded the new EnergyPlus 9.2 version and I can't find the file cal

Thank you very much!

I downloaded the new EnergyPlus 9.2 version and I can't find the file called "Rules9-1-to-9-2.md" that used to come with the older versions. This file was really useful since it explained all the objects with changes in the IDF file. I haven't found any other file with similar information.

Do you know if this file is available anywhere else, or if is there any other place where these rules can be looked at? Thank you

EnergyPlus version transition Rules 9.1 to 9.2 I downloaded the new EnergyPlus 9.2 version and I can't find the file cal

I had a similar problem with the HeatPump:WaterToWater:Heating:EIR component of Energyplus 9.1. I had a very simple hot

In the situation I described the fan coil fan is already hard-sized, with the same design air flow rate as the cooling c

In the HTML outputs report, section HVAC Sizing Summary -> Coil Sizing Summary, there is the value of the "Reference

This issue has been fixed in EnergyPlus v9.1

Water cooling coil design inputs Hi! I am trying to define a specific fancoil in EnergyPlus v9.1. I am seting all the in

According to the Engineering Reference Manual (p.1044), the electric consumption of the fan is calculated as: Rated ele

I tried a simple case of VRF system with EnergyPlus v9.0. I reported the outputs "Performance Curve Input /Output Value" for the VRF model performance curve called "Cooling Energy Input Ratio Boundary Curve", which gave me a result of -999. However, the rest of the cooling curves have good values. In fact, the selection between the low and high cooling EIR curve seems to be following the boundary temperature curve for cooling capacity, not for EIR.

Can anyone confirm if this is a bug or correct me if I am wrong, please?

Here there is a post about the pressure input to the fan models, I hope it helps: https://unmethours.com/question/14589/

VRF performance curve: EIR boundary temperature I tried a simple case of VRF system with EnergyPlus v9.0. I reported the

This is a question about the HVACTemplate:System:ConstantVolume object in EnergyPlus 9.0. I am defining a schedule in the field "Minimum Outdoor Air Schedule Name" of this template, but the simulation results show that the outdoor air is always entering the zone. I have checked the .expidf file and noticed that the schedule I defined is missing in the corresponding "Controller:OutdoorAir" object. If I fill that "Controller:OutdoorAir" with the schedule, I get the results I expected.

Can you please tell me if there is a way to define the outdoor air schedule with this HVAC Template, without editing the expanded file? Thank you!

HVACTemplate:System:ConstantVolume minimum outdoor air schedule This is a question about the HVACTemplate:System:Constan

HVACTemplate:System:ConstantVolume minimum outdoor air schedule This is a question about the HVACTemplate:System:Constan

I can add to the Importing list CYPETHERM EPlus, an energy simulation software which is a BIM user interface of EnergyPl