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Influence of surroundings in the Surface Heat Balance

asked 2018-08-01 05:14:09 -0500

NCB's avatar

updated 2018-08-05 08:53:43 -0500

I'm trying to modelated a building in OpenStudio, but i can't understand where i have to define the influence of the surrrounding on the envelope heat balance. For me looks like that the shading surface, have only influence the shade, but not in the solar radiation reflection. There is any option in OpenStudio where i can define the surroundings features? I would be thankful for any suggestions about it. I'm reading for understand the software the EnergyPlus Documentation Engineering Reference, in the chapter 6 it is explained the solar radiation reflected, but my question is there is any step that i have to follow to define it in OpenStudio?

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Are you trying to use a weather file, or provide custom surrounding conditions for outdoor air?

Aaron Boranian's avatar Aaron Boranian  ( 2018-08-01 11:49:19 -0500 )edit

I'm using a weather file, but this is not enough to reflect the thermal impact of the characteristics of the surrounding urban context, as surrounding materials i think so. The only way i know to define custom surrounding conditions for outdoor air is the 'Basic Model Wind Coefficient' in the 'space infiltration effective leakage area', it is this what you suggest?

NCB's avatar NCB  ( 2018-08-02 02:53:56 -0500 )edit

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answered 2018-08-02 09:48:01 -0500

NCB's avatar

Reading carefully the documentation Engineering reference chapter 6, i think the answer for my question is to choose some of the two options of 'SolarDistribution'' that have 'WithReflections". It is possible to access in OpenStudio through simulation setting / simulation control.

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Yes, that Solar Distribution options can be accessed in simulation settings. You can also associate constructions with shading surfaces, but they still will not act like heat transfer surfaces and they can't for example report their surface temperature.

David Goldwasser's avatar David Goldwasser  ( 2018-08-02 10:59:10 -0500 )edit

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Asked: 2018-08-01 05:14:09 -0500

Seen: 119 times

Last updated: Aug 02 '18