codybond's profile - activity

Hmm, this sounds more like an OpenStudio inputs issue, which I'm not very well versed in. You might want to open up a se

So what sets the enthalpy_in? That's happening mainly in the zones that are connected to the air loop. If you have not a

I'm not exactly sure where to find this in OS, but in general each coil is autosized based on the parameters you feed it

Oh, I've definitely seen this myself and hold similar skepticism. This is more as an exercise, and considering a scenari

Thanks for the great question, Anna. We are constantly running into this issue as well. Just wanted to update the Taylor

CAPFTemp curve from operational data Hi All! Has anyone successfully generated the CAPFTemp performance curve using op

Hi Jim! Thanks for the info! Eventually I will use the EnergyPlus CurveFitTool for the actual biquad curve generation.

CAPFTemp curve from operational data Hi All! Has anyone successfully generated the CAPFTemp curve using operational ch

Hi Nicole, it seems like there are two main problems: 1) Sizing is not as expected, and 2) Boiler consumption is too hig

Hi Nicole, it seems like there are two main problems: 1) Sizing is not as expected, and 2) Boiler consumption is too hig

Technically this isn't related to your original question, so if you feel like the pump energy consumption question has b

The I/O reference is always the go-to for input definitions. Here is the link to the two you asked about. The best plac

Hey Ahmad, it's hard to comment on the "correctness" of your input parameters, because it's all relative to the building

I'm a little confused where you say you think the problem is sizing, but the peak load is very reasonable. Is that 34 kW

Sounds like there is not enough load leaving your zone to take the zone temperature below the heating thermostat setpoin

Sorry Ahmad, I won't have time to look at your model, but check back in with questions if you're still having issues aft

Sorry, that was a lazy reference to the loop_design_temperature_difference in Sizing:Plant.

For the issue of high pump power, the easiest thing to do would be to hardsize the power (design_power_consumption) that

Got it! So is the main problem that the flow is much higher than you expect, or that you expect it to operate with varia

Hi Ahmad, are you autosizing the design condenser flow for the chiller? If so, you should take a look at your EIO file a

Got it. The flow is based on demand, and therefore zone temperature vs thermostat setpoint. So you may want to take a lo

You might be getting forced by the min flow fraction at the terminal unit(s) (assuming you're using AirTerminal:SingleDu

If you're autosizing the coil parameters, check your EIO file to check the capacity of your cooling coils. If the capa

What object are you using? Is this set up as an airloop, or zone equipment?

I don't, but maybe this post will help.

Depending on the type of cooling equipment you are using, you might be looking for Output:Meter,CoolingCoils:EnergyTrans

Someone else may know the direct answer to your question, but an alternative option could be to set up an EMS script tha

Nice! Thanks for posting your work!

Well, the good news is that it's trying to make a setpoint, but falling short. You're right to switch to CoolingSetpoint

Hi Oscar, I'm not familiar with equest, so this may not be very helpful, but for E+ the supply flow autosizing works lik

Heat pump cooling coil water flow Can anyone tell me which parameters are controlling the v_dot_water request for the Co

Jim, another setting to watch out for is in the DesignSpecification:OutdoorAir object. Unless otherwise defined, E+ is u

Heat pump cooling coil water flow Can anyone tell me which parameters are controlling the v_dot_water request for the Co

After doing some testing on this spreadsheet today and then coming across this post, I think the main issue is that it i

Typically it is true that WWR is more energetically important than location or shape of the window within any given surf

Hi Brianna! I'm having a little trouble figuring out how the first screenshot fits into the issue, but just in general,

You have to initiate a shading surface group first, and then move the object inside of it. You're looking for this butto

You have to initiate a shading surface group first, and then move the object inside of it. You're looking for this butto

The reason the capacity is not changing is because of the way E+ autosizing routine works. The required capacity of the

Hi Jim, Richard's answer is probably more applicable to your situation, but just in general there is the option to use t