[Bldg-sim] shady place simulation

Duggin, Cory Cory.Duggin at tlc-eng.com
Fri Jun 6 06:12:51 PDT 2014

I think you could model this in IESVE using the macroflow application.  You would have to draw all the openings as windows rather than holes, and then set the windows to be open all the time.  This would allow for shading and air to pass through the space.  You could then export those flows for any point in time as boundary conditions to microflow to perform CFD and calculate the thermal comfort metrics.

Cory Duggin, EI
Energy Engineer I
TLC Engineering for Architecture
direct dial 615-346-1939

-----Original Message-----
From: Bldg-sim [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Karol BANDURSKI
Sent: Friday, June 06, 2014 6:29 AM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] shady place simulation

Dear BPS Users and Developers,

I would like to model the zone that envelope is 'fully of holes', it consists of only shading elements. Like space inside upper branches of a tree or in the forest. 

So, there is no thermal insulation and air and heat can flow into and across zone by natural ventilation, but sun radiation is limited.

I wonder if TRNSYS simulation (or other multizonal software, e.g. ESP-r,
EnergyPlus) can be appropriate to model such objects (inside thermal
comfort) or it is necessary to use CFD simulation.

I think to prepare zone (maybe a few airnodes) with very low thermal resistance (or thermal properties of construction material, e.g. steel) and with a lot of cracks in the walls, then to model shading elements using shading zones.

Do you have some idea or some experience with such objects?
Any comments, hints and tips are appreciated!

Kind regards,
Karol Bandurski MSc.
Institute of Environmental Engineering
Poznan University of Technology

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