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2019-01-09 15:38:53 -0600 answered a question District cooling in IES-VE

You setup a CHW loop the same as you would if it weren't DES. Then change the chiller curve to be Virtual DES, which ma

2018-11-16 14:13:21 -0600 edited question How should dedicated sub-cooling chillers be modeled using ECB?

How should dedicated sub-cooling chillers be modeled using ECB? I have a dedicated water-cooled brine chiller supplying

2018-11-16 10:40:49 -0600 asked a question How should dedicated sub-cooling chillers be modeled using ECB?

How should dedicated sub-cooling chillers be modeled using ECB? I have a dedicated water-cooled brine chiller supplying

2018-11-06 11:00:44 -0600 answered a question Anyone experimenting w/ python scripts for IES?

I would send it to IES support. I have seen some of the scripts in the library not working after updating to VE2018. T

2018-09-21 13:31:45 -0600 answered a question IES-ve PRM 90.1-2010 Full Report - Exceptional Calculations

I don't think there is a way to add information to that page though the program. I would just use that as a cover page a

2018-09-18 15:28:21 -0600 commented question IES-VE: Total energy

Could you provide more information about what you are trying to simulate? Have you tried contacting IES support (suppor

2018-09-17 10:44:59 -0600 commented answer Do you typically perform a LCCA or simple payback analysis? If you do LCCA, what tool do you use? Where do you get the cost and maintenance data?

Thanks, I've used BLCC before. I knew HAP and Trace have something built in. I didn't realize EnergyPlus did though.

2018-09-15 12:16:41 -0600 asked a question Do you typically perform a LCCA or simple payback analysis? If you do LCCA, what tool do you use? Where do you get the cost and maintenance data?

Do you typically perform a LCCA or simple payback analysis? If you do LCCA, what tool do you use? Where do you get the

2018-09-15 12:05:24 -0600 commented question Obtaining Chiller Data from Manufacturers

Done. I can provide a good contact for getting Daikin chiller performance if you are interested.

2018-09-15 12:04:19 -0600 answered a question Obtaining Chiller Data from Manufacturers

This is interesting because I have successfully gotten Daikin, Trane, and York to fill out the Taylor Chiller bid form.

2018-09-10 16:59:50 -0600 received badge  Commentator
2018-09-10 16:59:50 -0600 commented question Obtaining Chiller Data from Manufacturers

This is interesting because I have successfully gotten Daikin, Trane, and York to fill out the Taylor Chiller bid form.

2018-09-05 15:45:06 -0600 answered a question IES-VE Energy Consumption on Zone level

The only way to get a separate energy consumption for each zone system is to create separate meters in Apache, and then

2018-09-04 10:06:57 -0600 answered a question chiller IPLV in IES-VE

It sounds like you are really looking to confirm that you are meeting the IPLV requirement in addition to the full load

2018-08-23 09:07:29 -0600 edited answer where to add turn on/off DCV on IES?

All prototype systems in ApHVAC do not have the controllers required for DCV. Either start with a system that has DCV b

2018-08-23 09:06:57 -0600 answered a question where to add turn on/off DCV on IES?

All prototype system in ApHVAC do not have the controllers required for DCV. Either start with a system that has DCV bu

2018-08-06 14:20:35 -0600 commented answer Anyone familiar with electrochromic glazing in IES VE?

Email me at cory.duggin@tlc-eng.com and I will send the guide I have created.

2018-08-03 14:47:39 -0600 answered a question Anyone familiar with electrochromic glazing in IES VE?

I suspect the issue is with what you have set as the electrochromic layer control function. It's a function that must be

2018-06-25 09:24:00 -0600 answered a question Radiant floor slab

Appendix G of the ApHVAC user guide covers two methods for modeling hydronic radiant heating and cooling systems that yo

2018-06-16 11:30:35 -0600 edited answer DX Coil - water cooled

Use the water loop heat pump system. There is a prototype system 9 variant with wlhp as the zone heating and cooling and

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2018-06-16 11:30:14 -0600 answered a question DX Coil - water cooled

Use the water loop heat pump system. There is a prototype system 9 variant with wlhp as the zone heating and cooling wit

2018-05-09 12:25:43 -0600 received badge  Student (source)
2018-05-09 11:17:12 -0600 asked a question How do you model a pre-cooling coil that uses condensate?

How do you model a pre-cooling coil that uses condensate? I have been told that on a previous lab project my client saw

2018-02-14 20:36:27 -0600 answered a question What are IES-VE support channel?

I watch here and the virtual-sim list.

2017-09-18 11:44:40 -0600 commented answer 90.1-2010 App. G - Self shading & adjacent bldgs

Im curious if any program has the ability to separate the effects of the building shading it self from the building bein

2017-08-25 17:00:05 -0600 answered a question Chiller Performance Curves in IES-VE

I do know the IES curves have been updated to be the ones from E+ rather than DOE2.2, so that would explain one part.

2016-08-17 12:54:50 -0600 commented answer Modeling Daikin VRF in Equest - Too high heating consumption

I was just revisting this thread for adjusting an eQuest model with the old curves imported. I found that Daikin has now updated the files on their website where you replace your BDLLIB.dat with one they have added all their curves to, so you can import them directly to your project from the eQuest library.

2016-08-16 10:33:38 -0600 answered a question Can IESVE output pressure difference in an elevator shaft?

I don't think you can get a pressure output from MacroFlow, but you can use those MacroFlow results as boundary conditions for MicroFlow. The MicroFlow CFD results do give pressure.

2016-04-20 08:30:23 -0600 commented answer Which software can model a low temp VAV with PFP boxes.

Yes, I mean IESVE. Prototype system 6 and 8 are PFPB, depending on whether you want DX or CHW. Simply change the cooling coil LAT to the required 46F and adjust the PFPB airflow control to be variable. You will have to make some adjustments to the PFPB volume to ensure you get the SAT desired though.

2016-04-19 20:23:23 -0600 commented answer Which software can model a low temp VAV with PFP boxes.

Lol, don't forget THE University of the South. I suppose it sounds better when you say what it stands for. Model in the Virtual Environment rather than model in Virtual Environment.

2016-04-19 18:17:14 -0600 answered a question Which software can model a low temp VAV with PFP boxes.

That would be easy to model in the VE. The pfpb is setup as CV by default, but making them variable is a simple control change.

2015-11-16 10:03:03 -0600 answered a question Engine Feature Comparison

I went ahead and put in answers for IESVE.

2015-06-29 17:00:41 -0600 commented answer Linking model to Suncast, Macroflo and ApacheHVAC

Make sure to look at the MacroFlow opening types you have assigned and the profiles that controls when they open. Depending on how big a part shading plays, not linking suncast could make a significant different. Without suncast, you are getting true performance results for your building since it isn't even able to selfshade.

2015-06-29 08:55:16 -0600 commented answer Linking model to Suncast, Macroflo and ApacheHVAC

It will be correct with respect to the building, but the ApSys system is much more simplified than ApHVAC. It matches the load perfectly and doesn't produce unmet hours. It is good for studies when the HVAC isn't important and doesn't change the building physics reaction to changes, such as comparing envelope options.

2015-06-28 14:53:43 -0600 answered a question Linking model to Suncast, Macroflo and ApacheHVAC

Always link suncast and ApHVAC. Without suncast linked, solar shading won't be taken into account, and if ApHVAC isn't linked, the ApSys system will be used rather than the ApHVAC one you created.

2015-04-20 10:39:11 -0600 commented answer Modeling Daikin VRF in Equest - Too high heating consumption

I was unaware it was a simple truncation issue. Thanks for the info.

2015-04-20 09:06:07 -0600 answered a question Modeling Daikin VRF in Equest - Too high heating consumption

I have tried to use the Daikin curves and modeling guide, but it yielded the same results. I believe there is an error in the VRV Heating EIR curve because if i set it back to the default PVVT curve, the heating energy is more reasonable.

2015-03-04 10:12:57 -0600 commented answer UFAD modeling best practice?

It is what i do, but i did it for the same reason you did (the user guide said to); however, it does make sense to me though. One of the main parts of modeling UFAD is to account for both the thermal mass and heat gain/loss effect of the SA and RA plenums. It seems this approach does a good job of that.

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2015-03-01 14:06:02 -0600 answered a question UFAD modeling best practice?

I have recently modeled UFAD in the VE. When the user guide refers to raising the SAT for account for the SA plenum, it is actually telling you to change the SAT used in the spreadsheet to calculate the required airflow. Not the SAT on the coil controls. It's a bit of an iterative process to get the airflow and SAT just right. Run it with the standard 55F SAT. Then figure out what the actual SAT to the zone is after it goes through the SA plenum. Then you can adjust the SAT value in the Room Design Airflows sheet of the spreadsheet, which will increase the airflow to the zones. You may need to repeat the process if the increased airflows significantly changes the resulting SAT to the zone.

2014-11-24 14:32:59 -0600 answered a question Modeling Indirect-Evaporative Cooling with Winter Heat Recovery

I have modeled indirect evaporative cooling in the VE before. My system had two stages of evaporative cooling on the exhaust side that then runs through a heat exchanger. I ended up having to model the evaporative cooling with cooling coils rather than the spray chamber component. The possible controlled variables for the spray chamber were too limited. I controlled the cooling coils via heat transfer using the value from the manufacturers materials for each stage. I used an 80% sensible effectiveness for the heat exchanger. The cooling coil controls staged on and off based on the supply side leaving DBT off the heat exchanger. I hope this helps even though it's a bit late.

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