[Equest-users] eQuest unmet heating hours oddity

[Bishop, Bill]

Netty,

One major problem that jumps out is that you have not fully defined your zone geometry in your building shells. I would start by going back to the Wizard and defining/redefining your shells and zones. (You do not want any yellow area left when you are finishing defining zones for a shell. Everything should be green.) Then, when defining systems, keep the eQUEST defaults as much as possible to get your model running properly before you change things. Make sure the model runs well before spending a lot of time doing custom windows in the Wizard, because the work will be undone if you have to make more changes to the shell/zone definitions.

Regards,
Bill

[Senior Energy Engineer 28Jun2012]<mailto:wbishop at pathfinder-ea.com>

From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Netty Nina
Sent: Monday, February 04, 2013 9:20 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] eQuest unmet heating hours oddity

Hi Everyone,

This questions is about unmet heating hours in a model. I've scoured the bldg-sim list but I haven't come across anything like the problem I'm having. I'm modeling a high school in New England. The unmet heating hours are 99.99%. I've checked the heating and cooling schedules, fan schedules, etc., adjusted the throttling range, and so on. The SS-O reports show that the majority of space temperatures are below 60F. The building is in New England, but I find it unlikely that during the majority of the summer the temperature will be below 60F in the building.  It's not really a sizing issue either as changing equipment sizes does not do anything and the loads (for the most part) do not exceed the equipment capacity. Any help would be greatly appreciated.

Thanks,

Netty


Netty Nina<mailto:nnina at ers-inc.com>, LEED(r) AP BD+C
Project Engineer
ERS
120 Water Street, Suite 350
North Andover, MA 01845

Ph: 978-521-2550 ext. 224
Fax: 978-521-4588
nnina at ers-inc.com<mailto:nnina at ers-inc.com>
www.ers-inc.com<http://www.ers-inc.com/>

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