[BLDG-SIM] Energy use for elevators

[Vikram Sami]

It does because it makes the percentage energy saved smaller. 
 

Vikram Sami, LEED AP 
Direct Phone 404-253-1466 | Direct Fax 404-253-1366 

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________________________________

From: BLDG-SIM at gard.com [mailto:BLDG-SIM at gard.com] On Behalf Of Graham
Carter & Megan Lyall
Sent: Thursday, July 26, 2007 4:52 PM
To: BLDG-SIM at gard.com
Cc: BLDG-SIM at gard.com
Subject: [BLDG-SIM] Energy use for elevators


Does it really matter that this end use is included if the Base Case
vertical transportation energy use is the same as the Design Case? 

On 25/07/2007, at 11:06 PM, Eric Yang wrote:


	

	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
<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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