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Jamie Sullivan's profile - activity

2024-02-18 17:22:06 -0500 answered a question How to define a good AirflowNetwork Crack for a AirBoundary wall?

Personally, I just set up a permanent opening for open zone connections like that. So draw a "door" covering most of th

2024-02-18 16:50:40 -0500 commented answer increase in heat loss with more insulation thickness.

Well, if you're using the AFN then the answer is to use the EMS to create a better control system - see my answer here.

2024-02-13 18:02:16 -0500 received badge  Rapid Responder (source)
2024-02-13 18:02:16 -0500 answered a question OSM File corrupted 4 previous files as wireframe.

Yeah, this is a thing that happens annoyingly often. Normally the simplest solution, as you say, is to go back to an ear

2024-02-11 14:09:14 -0500 answered a question increase in heat loss with more insulation thickness.

This could be caused by ventilation or cooling clashes. It's something I've encountered before when trying to implement

2024-02-11 14:09:14 -0500 received badge  Rapid Responder (source)
2024-02-02 13:30:03 -0500 received badge  Commentator
2024-02-02 13:30:03 -0500 commented question Why do I add shadows to my house but the interior temperature does not change? In OS

Hmm, that should do something yeah. Another few things you could look at (though they probably aren't the answer): W

2024-02-01 15:40:17 -0500 commented question Why do I add shadows to my house but the interior temperature does not change? In OS

In terms of diagnosing what's going on, the first question I'd ask is how big the eaves are? Maybe try adding some reall

2024-02-01 15:20:32 -0500 commented answer What are the solutions for modeling natural ventilation in summer?

I'll note several points to be aware of if using it: Window opening areas for wind driven and stack ventilation aren't

2024-01-31 18:34:27 -0500 answered a question What are the solutions for modeling natural ventilation in summer?

There are two basic paths here in EnergyPlus: Use the simple ZoneVentilation objects to apply ventilation to your zone

2024-01-31 16:24:29 -0500 commented answer IDF Setpoint Value

As an addendum to this, note also that by default EnergyPlus's setpoints refer to the air temperature. This differs from

2024-01-30 15:36:08 -0500 received badge  Rapid Responder (source)
2024-01-30 15:36:08 -0500 answered a question Hourly output for End Uses - EnergyPlus

In general the answer is that you can set up hourly outputs like below, using Output:Variable. You can then find the out

2024-01-10 15:18:13 -0500 received badge  Rapid Responder (source)
2024-01-10 15:18:13 -0500 answered a question Extract each heat balance term in EnergyPlus

The Honeybee plugin for grasshopper has this capability - the simplest way to see what outputs you'll want is I think to

2024-01-08 15:42:51 -0500 answered a question How set infiltration rate (ACH) in AFN model?

There is a trick that allows you to do this actually. While the basic zone infiltration/ventilation objects do not work

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2024-01-08 14:51:02 -0500 commented answer RoomAirModel exhaust temperature offset does not affect exhaust heat transfer?

Thanks! That makes sense yeah.

2024-01-04 16:20:32 -0500 commented answer RoomAirModel exhaust temperature offset does not affect exhaust heat transfer?

Thanks for the reply. I've edited in my room air model settings and exhaust fan setup above - they're fairly basic. I've

2024-01-04 16:17:40 -0500 edited question RoomAirModel exhaust temperature offset does not affect exhaust heat transfer?

RoomAirModel exhaust temperature offset does not affect exhaust heat transfer? I was applying a vertical temperature gra

2024-01-03 20:07:27 -0500 commented answer RoomAirModel exhaust temperature offset does not affect exhaust heat transfer?

Mmm, I haven't been using the Balanced Exhaust fraction at all. Toggling it between 1 and 0 though doesn't have any effe

2023-11-27 16:19:14 -0500 commented question Meter output error

Can you show us what your input for the Output:Meter object is?

2023-11-22 14:43:03 -0500 received badge  Rapid Responder (source)
2023-11-22 14:43:03 -0500 answered a question 1 minute energy consumption

If you change the Timestep to 1 minute by setting the number of timesteps per hour to 60 that would allow it. To get th

2023-11-14 14:12:18 -0500 received badge  Enthusiast
2023-11-13 15:46:10 -0500 edited question RoomAirModel exhaust temperature offset does not affect exhaust heat transfer?

RoomAirModel exhaust temperature offset does not affect exhaust heat transfer?? I was applying a vertical temperature gr

2023-11-13 15:45:29 -0500 asked a question RoomAirModel exhaust temperature offset does not affect exhaust heat transfer?

RoomAirModel exhaust temperature offset does not affect exhaust heat transfer?? I was applying a vertical temperature gr

2023-11-06 16:58:01 -0500 received badge  Teacher (source)
2023-11-06 16:13:08 -0500 answered a question E+ Simulation runtime with transmittance schedule

A possible answer is that it's your shadow calculation algorithm. I ran into this problem in the past when I tried to u

2023-11-05 15:31:32 -0500 edited question Temperature stratification with mezzanine zone – possible to model?

Temperature stratification with mezzanine zone – possible to model? I’ve got an apartment with a living/kitchen zone on

2023-11-05 15:31:32 -0500 received badge  Editor (source)
2023-11-05 15:25:29 -0500 commented question Temperature stratification with mezzanine zone – possible to model?

The mezzanine was zoned separately because it's a bedroom, which has very different internal gains, occupancy, operation

2023-11-03 16:32:37 -0500 commented question Temperature stratification with mezzanine zone – possible to model?

I'd seen some of them yeah - though there were some that I hadn't found so thanks for those. None of them really get at

2023-11-03 06:34:52 -0500 received badge  Student (source)
2023-11-03 06:32:20 -0500 asked a question Temperature stratification with mezzanine zone – possible to model?

Temperature stratification with mezzanine zone – possible to model? I’ve got an apartment with a living/kitchen zone on

2023-09-01 09:06:08 -0500 asked a question EnergyPlus EMS sensors not read at first timestep of warmup?

EnergyPlus EMS sensors not read at first timestep of warmup? I was attempting to write a simple EMS script to vary the c