[TRNSYS-users] average ambient day temperature

[Nicholas LaHam]

Jeff

Is it possible to create running averages based on certain criteria? For instance, could I calculate the average of the temperature each day only when radiation is present (during daytime hours) so that the average does not reflect the cold nights?

The closest solution I have found to this is to use an 8 hour running average, so that you are getting 3 averages each day: Midnight to 8am, 8am to 4pm, and 4pm to Midnight. And then using Excel to average only the 8am to 4pm data and erase everything else. The problem with this is the radiation is still present after 8am or before 4pm at certain locations and depending on the time of season.

Thanks,
Nick

On Apr 8, 2011, at 12:44 PM, Jeff Thornton wrote:

> You can also use the utility model that creates a running average - in your case a running 24 hour average.  This will keep you from getting step changes at midnight.
> 
> Jeff
> 
> Jeff Thornton 
> President - TESS, LLC 
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> 
> ----- Original Message -----
> From: "Adrien JEZEQUEL - ITF" <a.jezequel at itf.biz> 
> Sent: Thu, April 7, 2011 9:10
> Subject: Re: [TRNSYS-users] average ambient day temperature
> 
> Lana,
> 
> I think you can also use Type55, from utility library.
> 
> Best regards
> !
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> Le 07/04/2011 14:56, Arno Dentel a écrit :
>> 
>> Lana,
>> 
>> you can use Type127 to calculate an running mean value.
>> 
>>  
>> Best regards,
>> 
>> Arno
>> 
>>  
>>  
>> Von: trnsys-users-bounces at cae.wisc.edu [mailto:trnsys-users-bounces at cae.wisc.edu] Im Auftrag von Lana Saracevic
>> Gesendet: Donnerstag, 7. April 2011 10:04
>> An: trnsys-users at cae.wisc.edu
>> Betreff: [TRNSYS-users] average ambient day temperature
>> 
>>  
>> Dear all,
>> 
>> is there a Type that can calculate the average ambient day temperature of each day in the year, and where can I find it? I would like to use that to control the inlet temperature of a concrete core activation system.
>> 
>>  
>>  
>> Freundliche Grüße / Best Regards
>> 
>>  
>> Lana Saracevic
>> 
>>  
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