[Equest-users] Modeling Ashrae - System 8 in equest - Fan in the parallel box

[Nicholas Caton]

For common reference, here are the same inputs when using doe2.3.  We have a couple new inputs pertaining to terminal boxes and the fans that love them (ha-ha).  These options might merit separate consideration inside/outside the confines of a 90.1 modeling effort:
[cid:image001.png at 01D547BA.174DC700]

[cid:image005.png at 01D515A3.47EDD880]
Nick Caton, P.E., BEMP
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[cid:image006.png at 01D515A3.47EDD880]


From: Equest-users <equest-users-bounces at lists.onebuilding.org> On Behalf Of Brian Fountain via Equest-users
Sent: Tuesday, July 30, 2019 8:18 AM
To: Konstantina Kalliakoudi <kalliakoudi.k at gmail.com>
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Modeling Ashrae - System 8 in equest - Fan in the parallel box
________________________________


Konstantina,

You are correct to model VAV systems with parallel and series powered boxes as PIU system type.

This system type will enable several keywords at the zone level on the Airflow tab:
[cid:image006.png at 01D547B9.B7EFB700]

Included in these is ZONE-FAN-RATIO and ZONE-FAN-KW/FLOW where you can enter your VAV box fan power.

Footprint

Brian Fountain
Associate
d 416 572 8501 m 416 562 6831

From: Equest-users <equest-users-bounces at lists.onebuilding.org<mailto:equest-users-bounces at lists.onebuilding.org>> On Behalf Of Konstantina Kalliakoudi via Equest-users
Sent: Tuesday, July 30, 2019 8:44 AM
To: equest-users at lists.onebuilding.org<mailto:equest-users at lists.onebuilding.org>
Subject: [Equest-users] Modeling Ashrae - System 8 in equest - Fan in the parallel box

CAUTION: EXTERNAL SENDER
Dear equest users,
According G3.1.3.14 for system 8 the fan parallel box shall be modeled with 0.35 W/cfm fan power.
I was wondering where this paramater can be insered in equest.

In the following screenshot I have input the power of the supply fan.

[image.png]

Thank you very much.


Best regards
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Konstantina Kalliakoudi
Mechanical Engineer Μ.Sc.
www.khmoe.gr<https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.khmoe.gr%2F&data=02%7C01%7CNicholas.Caton%40se.com%7C80eeb87eb1024add726908d714f07a79%7C6e51e1adc54b4b39b5980ffe9ae68fef%7C0%7C0%7C637000895394432188&sdata=Vw2BEgGFn1p5%2BhXju0ZynmRaHRPGpkcxSNFWkA2CJAc%3D&reserved=0>




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