[TRNSYS-users] Artificial lighting

hotline hotline at transsolar.com
Thu Sep 7 00:59:46 PDT 2006


Hi Maurizo,
 
the confusing part is that there are not only several ways to define it but also different control strategies possible.
 
You may select the following:
 
Related floor area:     1 m²
Total heat gain:         100 W/m²  
convective part:         10 %
control strategie:         Define e.g. an input or schedule when the light is on  (e.g. depending on the horizontal radiation outside)
scale:                         1*SCHEDULE USE  (schedule use defines when the room is used an the light might be on e.g. workday 8 am to 8 pm)
 
The resulting heat gain is:
 
"convective resulating heat gain" = "Related floor area" * "Total heat gain" * "convective part" * "control strategie" * "scale"
 
"radiative resulating heat gain" = "Related floor area" * "Total heat gain" * (1- "convective part") * "control strategie" * "scale"
 
If "scale" and "control strategie" is set 1 you a thermal load of 100 W for your room.
 
Sincerely,
 
Marion Hiller
TRNSYS hotline Team
 
 
 

	-----Ursprüngliche Nachricht-----
	Von: trnsys-users-bounces at engr.wisc.edu [mailto:trnsys-users-bounces at engr.wisc.edu] Im Auftrag von Maurizio Sorce
	Gesendet: Mittwoch, 6. September 2006 13:32
	An: trnsys-users at engr.wisc.edu
	Betreff: [TRNSYS-users] Artificial lighting
	
	
	Dear all,
	 
	I have a problem with the definition of TRNBUILD internal gain "artificial light". 
	I don't understand the meaning of the required inputs&parameters.. So if I have, for example, the simple situation of an a incandescent lamp of 100 W in a room of 9 sqm I don't know how I have to set the different fields. 
	 
	Can anyone give me some advices on how to solve this problem?
	 
	Thanks,
	 
	Maurizio 
	 
	--------------------------------------------
	Maurizio Sorce
	DREAM - Dipartimento di Ricerche Energetiche ed AMbientali
	Università degli Studi di Palermo
	Viale delle Scienze, Building 9 - I-90128 Palermo
	tel. +39 091 236111 / fax +39 091 484425 
	email: dream at dream.unipa.it
	 

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