negative solar radiation
https://www.pveducation.org/pvcdrom/p...
According to this model and TMY3, solar radiation on a building wall facing south is sometimes negative. Is it reasonable?
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https://www.pveducation.org/pvcdrom/p...
According to this model and TMY3, solar radiation on a building wall facing south is sometimes negative. Is it reasonable?
Are you actually seeing this in results of a run?
Linda
FIBPSA, FASHRAE http://climate.onebuilding.org - free repository of climate data for building simulation Climate.onebuilding is a FREE service not supported by any outside organization or government agency.
Attach your IDF file? Did you use the TMY3 from energyplus.net or from climate.onebuilding.org?
Linda
FIBPSA, FASHRAE http://climate.onebuilding.org - free repository of climate data for building simulation Climate.onebuilding is a FREE service not supported by any outside organization or government agency.
I used the formula from this, not energyplus: https://www.pveducation.org/pvcdrom/p... I used TMY3 data.
Then I don't think I can help you. Not sure who wrote this formula, etc, etc.
Linda
FIBPSA, FASHRAE http://climate.onebuilding.org - free repository of climate data for building simulation Climate.onebuilding is a FREE service not supported by any outside organization or government agency.
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Asked: 2021-07-27 21:11:44 -0600
Seen: 16,663 times
Last updated: Jul 28 '21
My result is for Fairbanks. Is it too special a place chosen? Or is it reasonable to have negative solar illumination?