Is my understanding correct that if the
input weather file has only total global solar radiation,
weather.exe will then compute the direct normal using the Perez
Model? Are any other inputs or definitions needed ?
Joe
Joe Huang
White Box Technologies, Inc.
346 Rheem Blvd., Suite 108D
Moraga CA 94556
yjhuang@xxxxxxxxxxxxxxxxxxxxxxxx
www.whiteboxtechnologies.com
(o) (925)388-0265
(c) (510)928-2683
"building energy simulations at your fingertips"
On 3/29/2013 11:36 AM, Linda Lawrie wrote:
Joe
Joe Huang
White Box Technologies, Inc.
346 Rheem Blvd., Suite 108D
Moraga CA 94556
yjhuang@xxxxxxxxxxxxxxxxxxxxxxxx
www.whiteboxtechnologies.com
(o) (925)388-0265
(c) (510)928-2683
"building energy simulations at your fingertips"
On 3/29/2013 11:36 AM, Linda Lawrie wrote:
That wasn't the problem.
It was bad data on input. Missing intervals, etc that were overlooked in quality control by the user.
At 12:31 PM 3/29/2013, Joe Huang wrote:
I would be interested to find out how this problem gets resolved. In my work developing the IWEC2 weather files for ASHRAE, I encountered problems applying the Perez model to get the direct/diffuse split, and ended up switching to a simpler Gompertz Function model.__._,_.___
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