[TRNSYS-users] sky temp (type 69) inconsistent inputs warning

[Cramer Silkworth]

Tim,

Thanks for the response. But...type 69 is not connected to type 109 is 
this case. Only ambient temp & dewpoint, direct & diffuse hoizontal 
irradiances. The error occurs seemingly sporatically. Any ideas?

-Cramer  

-----Original Message-----
From: Timothy McDowell [mailto:mcdowell at tess-inc.com] 
Sent: Monday, April 13, 2009 5:51 PM
To: Cramer Silkworth; trnsys-users at engr.wisc.edu
Subject: Re: [TRNSYS-users] sky temp (type 69) inconsistent inputs 
warning

Cramer -

I have seen this when the weather file is 'missing' cloud cover data - 
meaning that there are 99s entered in the data for some hours.  Type69 
checks this and flags it as being greater than 1.

Tim





----------------------------------
Timothy McDowell
Executive Vice President
Thermal Energy System Specialists, LLC
22 N. Carroll St, Suite 370
Madison, WI 53703
Phone: 608-274-2577
Fax: 608-278-1475

----- Original Message -----
From: "Cramer Silkworth" <silkworth at transsolar.com>
Sent: Mon, April 13, 2009 13:55
Subject:[TRNSYS-users] sky temp (type 69) inconsistent inputs warning








Hi
All,



I'm getting an
annoying but work-aroundable error, but I'm curious see if there's a 
real problem. When running a simple deck file to create a climate 
analysis (no building, just radiations & temps, etc), I get a bunch 
of the below warnings, ultimately maxing out and causing a fatal error. 
I can get past it by increasing my max warnings, but I'm curious what 
the real issue is. I've checked for the things it says in the message 
but none of those conditions exists.
Anybody got any ideas? Or does type 69 just get cranky easily?






*** Warning at
time       :
584.000000
    Generated by Unit
:    69
    Generated by
Type     :    69
    TRNSYS
Message    317 : The sky temperature model has reported an
inconsistency in the supplied INPUTS. The inconsistency has been fixed 
but should be investigated as it may lead to other problems. This error 
can be caused by a dew point temperature above the ambient temperature, 
a solar radiation value less than zero, or a cloud cover fraction less 
than zero or greater than one
    Reported information  : Not
available



Thanks,

-Cramer



J. Cramer Silkworth

Transsolar Inc.

Technical
consulting for energy efficiency and user comfort in buildings. 
Stuttgart - Munich - New York

134 Spring Street Suite 601

New York, NY 10012

212-219-2255

silkworth at transsolar.com



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----- End of original message -----