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You have not tagged a specific software, so I am unsure if this is helpful! In EnergyPlus, yes. This would require that

MaterialProperty:PhaseChange and MaterialPropoert:VariableThermalConductivity can help you simulate PCM application in b

I remember having this issue as well. Couple of thing I tried were to close all other excel files (certain large .csv d

no problem, happy to help!

I believe the BCL "Add Rooftop PV" measure adds a Generator:Photovoltaic with a 'simple' performance type. From the .rdd

I was just looking into this, and yes, MP:VTC does take precedence over MP:PC to determine the conductivity of a PCM. T

PAT's .xml creator for results displays zeroes for annual electricity_peak_demand for all runs, as shown below: . I was able to verify this by reproducing it across 2 different models in 2 different PATs. These values are non-zero in the .htm file. Anybody else having the same issues, and have found a quicker fix, other than manually getting this value from the .htm and replacing the 0's?! We submit these results to our local utility's rebate programs' website, and have reverted back to OS 2.7.0 since this is a blocker for our workflow...

This issue happened again in a model, in v2.8.0. Opening the HVAC systems tab crashes OS, but it still runs alright. I l

This issue happened again in a model, in v2.8.0. Opening the HVAC systems tab crashes OS, but it still runs alright. I l

Thanks @aparker ! Just read about the energyplus issue that caused this. Wow that was a good catch!

THanks @aparker !

.xml creator broken in PAT 2.8.0 PAT's .xml creator for results displays zeroes for annual electricity_peak_demand for a

Thanks! That it great news!

I am having the same problem with one of my PATs, run on my desktop (OS2.6, Energyplus 8.9). The total PAT size was 1.28

No problem! Feel free to go ahead and mark the answer as correct, if this solved your problem!

Are you sure you are saving your .osm project the right way? This is done by clicking the icon in the OS toolbar and NO

Are you sure you are saving your .osm project the right way? This is done by clicking the icon in the OS toolbar and NO

I am trying to use a rates structure which calculates costs for energy and demand using daily kWh and daily peak kW values. I was able to create a UtilityCost:Tariff object, with a real time pricing schedule which references a Schedule:Compact object or a Schedule:File object.

From my understanding, this could potentially calculate the energy charges (based on kWh) based on the schedule charges. Is there a way to do the same based on daily peak kW? From reading the I/O reference in energyplus, it looks like I can't apply a rate structure based on the daily peak kW, as the UtilityCost:Tariff and all the different UtilityCost:Charge: objects are based on a monthly demand structure. Is this right? Or am i missing something? Additionally, any tips/tricks where I could make this work will also be appreciated! Thanks.

Thanks again for filing the new-feature request! And nice idea!! I'll use the Output:Variable and postprocess the result

Thank you for the answer! I did check the rate structure again, and it is indeed peak kW per day!! The utility rate in q

Electric demand costs based on daily peak kW values I am trying to use a rates structure which calculates costs for ener

Calculating electricity demand costs using a per day rates schedule I am trying to use a rates structure which calculate

Have you tried setting the heating coil capacity to zero in your FourPipeFanCoil, and adding a UnitHeater:Electric for t

I think this is a special characters issue, as was addressed by the answer. On quickly parsing through ''valentina_model

I think this maybe a syntax error. Have you tried vrfs_in.each do |vrf_in| , instead of leaving it open without the | |

I am adding a Meter:Custom object to my .osm file through an energyplus script. This particular meter would get the "Cooling Coil Total Cooling Energy" from the required Coil:Cooling:DXSingleSpeed objects. I am successfully able to inject the meter object into the idf. However, I was wondering if there was a way to make the output of this meter, i.e., a cumulative of the Cooling Coil Total Cooling Energy for the specified Coil:Cooling objects, get displayed in my eplusout.htm file?
From the Energyplus I/O reference, I understand I have to add a "Output:meter, 'my_custom_meter_name', Timestep;" line to my idf file, and call this meter in an Output:Table:Monthly report? I am just curious if this will work, or if there is another simpler method of doing this? Thanks,

Sorry, I was able to figure this out, and it seems that adding "Output:meter, 'my_custom_meter_name', Timestep;" and cal

Custom:Meter results displayed in eplustbl.htm? I am adding a Meter:Custom object to my .osm file through an energyplus

Custom:Meter results displayed in eplustbl.htm? I am adding a Meter:Custom object to my .osm file through an energyplus

I'm just curious! The OpenStudio Planned Features page says it's scheduled for release in October 2016, so I was wondering if the version is already out?

Sometimes, I tend to have the same issue with OS 2.1 in Windows 10, but the objects turn up if i leave the screen idle for a while, after entering the HVAC Systems Tab and before clicking on the Library tab (2-3 minutes). Have you tried this?

Thanks Adam, I'll do that.

Apologies in advance, if this is not a method error, but a script error. I was trying to add a Coil:WaterHeating:Desuperheater which collects heat from a Coil:Cooling:DX:SingleSpeed and rejects it to a WaterHeater:Mixed object, per the EnergyPlus IO reference for this object. This object is present in the Openstudio 1.14 sdk documentation.

I used user inputs to choose the WaterHeater and the CoolingCoil required, and used the addToHeatRejectionTarget method to add the OS:WaterHeater:Mixed as the rejection target, and the setHeatingSource method to add the required Coil:Cooling:DX:SingleSpeed as the heating source. The script executes properly (Apply Measures Now), as shown. The Water Inlet/Outlet Nodes have been attached from the OS:WaterHeater:mixed selected, and the Heating Source Name has also been assigned. However, when I run the simulation, I get a severe error saying that the Heating Source Name has not been translated into the idf (image).

This makes me believe that it's an OS internal issue. Is that right? Or is there another way/pseudo code through which this can be fixed? Or do I have to insert this object directly in the idf using an Eplus measure?