[TRNSYS-users] TRNSYS Rain Water Collection

[Matt Duffy]

Fred,

The TMY3 now has "Liquid precipitation depth" and "liquid precipitation
quantity" (ref. www.nrel.gov/docs/fy08osti/43156.pdf). The next version of
TRNSYS will have a Type15 that will be able to read TMY3. In the mean
time, you could simply use a Type9 data reader after you obtain the data.

Cheers,

Matt



----- Original Message -----
From: "Fred Betz" <fbetz at aeieng.com>
Sent: Wed, July 15, 2009 13:16
Subject:[TRNSYS-users] TRNSYS Rain Water Collection

Has anyone ever modeled a rain water collection system in TRNSYS?

Also, do the existing weather files support this type of simulation? If
not, do you
know where I might find hourly rain data?

On one weather file I was able to get (Sterling, VA, USA), there is a
"Precipitable
Water" value that doesn't have any units.

I looked up precipitable water online and got the definition, "A quantity
of water
available in the atmosphere in a column".

That to me does not mean an amount of rain, but a potential amount of rain.

Any help would be appreciated.

Fred



Fred Betz, PhD., LEED AP
Senior Sustainability Consultant
Affiliated Engineers, Inc.
608-236-1175
608-444-4857 (c)
fbetz at aeieng.com
www.aeieng.com ( http://www.aeieng.com/ )



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