[TRNSYS-users] operative temperature

[jeannieboef at gmail.com]

There is an ISO 7730 norm with Algorithm to do this. If TrnSys can  
calc OT, then it would use the ISO.

Mit freundlichen Grüßen- Sent from my iPhone (excuse the brevity)

i. A.
Jean Marais
b.i.g. bechtold
Tel.   +49 30 6706662-23

On 02.12.2013, at 11:58, Angel Carrera <angel.carrera at aiguasol.coop>  
wrote:

>
> Karol,
>
> i am not completely sure, but i guess is only air and surface  
> temperature. As the radiant temperature is dependent on the view  
> factor of the surface, and internal gains have no surface associated  
> it can't be taken into account directly in the calculation of  
> operative temperature
>
> Angel
>
>
> 2013/12/2 Karol Bandurski <karol.bandurski at put.poznan.pl>
> Leen,
>
>
>
> Thanks for this tips, your PhD is helpful.
>
>
>
> But now I would like what is TRNSYS code – which way does TRNSYS cal 
> culate operative temperature?
>
> Does program take into account also heat gain in the zone or only  
> surfaces and air temperature?
>
>
>
> Karol
>
>
>
>
> From: leen peeters [mailto:l.f.r.peeters at gmail.com]
> Sent: Friday, November 29, 2013 9:43 PM
> To: TRNSYS users mailing list at the Solar Energy Lab, UW-Madison
> Subject: Re: [TRNSYS-users] operative temperature
>
>
>
> Karol,
>
>
>
> that depends on the viewfactors. the operative temperature sensed by  
> a person depends on his/her location in a room.
>
> If you check the book of Ole Fanger, you will be able to find that  
> explanation. A part of it, specifically applied to a radiator case  
> is also in my PhD.
>
>
>
> If the 'radiating object' is close to a person and the location of  
> the person in the zone is thus clearly defined, his/her actual  
> thermal sensation will be influenced by the radiating object in case  
> it is large enough or the temperature is high enough.
>
>
>
> However, the added value of a detailed calculation is limited in  
> case the real life scenario would be one where furniture is blocking  
> the viewfactors between radiating object and person.
>
>
>
>
>
> Leen
>
>
>
>
>
>
>
>
>
>
>
> On Fri, Nov 29, 2013 at 5:25 PM, Karol Bandurski <karol.bandurski at put.poznan.pl 
> > wrote:
>
> Dear All,
>
>
>
> Do you know which objects are taken into account in operative  
> temperature calculation?
>
>
>
> Air, walls, floor, ceiling for sure, but for example radiative heat  
> gain that is modeled in zone?
>
>
>
> I will be grateful for any comments!
>
>
>
> Regards,
>
> Karol
>
>
>
> ------------------------------------------------
>
> Karol Bandurski MSc.
>
> Institute of Environmental Engineering
>
> Poznan University of Technology
>
> www.put.poznan.pl/~karol.bandurski
>
> www.ee.put.poznan.pl
>
>
>
>
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>
>
>
>
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>
>
>
>
> -- 
> Àngel Carrera
>
> Consultor Senior
> Àrea tècnica
>
> Sistemes Avançats d'Energia Solar Tèrmica SCCL
> C/ Roger de Llúria, 29 3r 2a 08009 Barcelona
> Mòbil: (+34) 663 27 66 80
> Tel: (+34) 93 342 47 55
> Fax: (+34) 93 342 47 56
>
> angel.carrera at aiguasol.coop
> http://www.aiguasol.coop
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