[BLDG-SIM] Energy use for elevators

[Eric Yang]

It is from Table G-1 of the "User's Manual of ASHRAE 90.1 2004".   The
schedule has a different percentage for each business hour. I believe
there have been several discussions on this topic, and you can search in
this mailing list.  Drury Crawley previously recommended a white paper
from ACEEE about the actual energy consumptions of elevator usage.
http://www.aceee.org/buildings/coml_equp/elevators.pdf   If you use
Energyplus, the schedule is already combined in its standard schedule
library. 

Hope this helps.

Eric

________________________________

From: BLDG-SIM at gard.com [mailto:BLDG-SIM at gard.com] On Behalf Of Zhen
Tian
Sent: Tuesday, July 24, 2007 10:56 PM
To: BLDG-SIM at gard.com
Cc: BLDG-SIM at gard.com
Subject: [BLDG-SIM] Energy use for elevators

 

Eric,

 

Thanks a lot for your reply.

 

I have a further question. If we have the elevator power data, what
appropriate schedule should we use to approximately to get the elevator
annual energy use?

 

I checked the ASHREAE Appendix G but cannot find appropriate schedule
for elevators.

I think the schedule of elevators are quite diffent from other schedules
like occupancy scheule. One example, supposing people work from 8am to
6pm continuously, I guess that elevator working schedule should not be
the same. Do you have any ideas what appropriate schedule should we use?

 

Thanks a lot.

 

Regards,

 

David 

Eric Yang <Eric.Yang at smithgroup.com> wrote:

	Yes, ASHRAE 90.1 Appendix G requires modeling elevator energy as
long as it is designed in the project. You can come up a realistic
schedule or stick to a standard schedule in Appendix G if necessary. 
	
	Eric
	Smithgroup
	
	
	-----Original Message-----
	From: BLDG-SIM at gard.com on behalf of Zhen Tian
	Sent: Mon 7/23/2007 10:36 PM
	To: BLDG-SIM at gard.com
	Subject: [BLDG-SIM] Energy use for elevators
	
	Dear All,
	
	I have seen some messages these days asking the energy use of
elevators. But it seems that there is no very accurate way of modeling
annual lift energy use.
	
	If we need to simulate building energy use according to ASHRAE
90.1-2004 for LEED accrediation in e-QUEST, do we need to simulate
elevator energy use or not? Is it a must do? Could somebody with
experience with this topic give me some hints?
	
	Thanks a lot in advance.
	
	Regards,
	
	David
	
	
	
	
	
	
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