[Equest-users] Basline fan power (again...)

[jacob goodman]

Yea, my LEED points just went from 13 to 6...architect will not be happy.


On Tue, Oct 8, 2013 at 8:34 AM, jacob goodman <jacobgoodman22 at gmail.com>wrote:

> Thanks for the help Bill, that makes it look far more reasonable.
>
>
> On Tue, Oct 8, 2013 at 8:25 AM, Bishop, Bill <bbishop at pathfinder-ea.com>wrote:
>
>>  Jacob,****
>>
>> ** **
>>
>> You need to modify your bhp equation. You don’t just add the 0.5” - you
>> calculate “A” per the equation on Table 6.5.3.1.1A.****
>>
>> ** **
>>
>> Regards,****
>>
>> Bill****
>>
>> ** **
>>
>> *William Bishop, PE, BEMP, BEAP, LEED AP **|** Pathfinder Engineers &
>> Architects LLP*
>>
>> Senior Energy Engineer****
>>
>> ** **
>>
>> 134 South Fitzhugh Street                 Rochester, NY 14608****
>>
>> T: (585) 325-6004 Ext. 114            F: (585) 325-6005****
>>
>> bbishop at pathfinder-ea.com <wbishop at pathfinder-ea.com>
>> www.pathfinder-ea.com****
>>
>> P   Sustainability – the forest AND the trees. P   ****
>>
>> ** **
>>
>> *From:* equest-users-bounces at lists.onebuilding.org [mailto:
>> equest-users-bounces at lists.onebuilding.org] *On Behalf Of *jacob goodman
>> *Sent:* Tuesday, October 08, 2013 10:18 AM
>> *To:* equest-users at lists.onebuilding.org
>> *Subject:* [Equest-users] Basline fan power (again...)****
>>
>> ** **
>>
>> Dear Community, ****
>>
>> ** **
>>
>> I'm working on a baseline system fan power calculation and am getting
>> some absurdly high baseline fan powers, but I can't see where I'm going
>> wrong. See attached calculations.****
>>
>> ** **
>>
>> To start, the baseline model contains one system per thermal zone since
>> it is the P*SZ*-AC type these are named after the VAV terminals or
>> thermal zone in the proposed model. Since the building and corresponding
>> thermal zones are small the the pressure drop adjustment from the MERV 13
>> filter on the proposed system seems to make a huge difference in the
>> resulting fan powers. ****
>>
>> ** **
>>
>> By inputting the kW/CFM values my baseline heating system does almost
>> nothing. Also, I don't think putting a portion of the power in the exhaust
>> stream would get rid of the problem completely, but that is one thing I
>> havn't tried.****
>>
>> ** **
>>
>> Thanks!!!!****
>>
>> Jacob****
>>
>
>
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