[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[EnergyPlus_Support] Re: Variable Fan - fans in series
- To: EnergyPlus_Support@xxxxxxxxxxxxxxx
- Subject: [EnergyPlus_Support] Re: Variable Fan - fans in series
- From: "Jean marais" <jeannieboef@xxxxxxxxx>
- Date: Tue, 23 Aug 2011 10:56:08 -0000
- Delivered-to: mailing list EnergyPlus_Support@xxxxxxxxxxxxxxx
- Delivery-date: Tue, 23 Aug 2011 04:56:12 -0600
- Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoogroups.com; s=lima; t=1314096971; bh=hm9cJ/6BLDxUxQYOSKfyw1juHjs2QFL69zICmtg5XaE=; h=Received:Received:X-Yahoo-Newman-Id:X-Sender:X-Apparently-To:X-Received:X-Received:X-Received:X-Received:X-Received:To:Message-ID:In-Reply-To:User-Agent:X-Mailer:X-Originating-IP:X-Yahoo-Post-IP:From:X-Yahoo-Profile:Sender:MIME-Version:Mailing-List:Delivered-To:List-Id:Precedence:List-Unsubscribe:Date:Subject:Reply-To:X-Yahoo-Newman-Property:Content-Type:Content-Transfer-Encoding; b=eXdveEPqCfrdao7/rALv/7MKu+exNS2tBrDpQlmnCiY5YYvkmAHl0aR147E2DeQtKMwd+JfFUp80RI8gwO2UklTdLANyjpLXYvEkbLCO/agtvlm79P3qxrC8tCa0cKZC
- Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=lima; d=yahoogroups.com; b=FQa0kIXJqt7nad+KHudsX4AV+XQYleOCx2Fdiwx9ghwjEdHqYOtusYAN0YVdZVsx+gg34CUR+yB84YFdiCHqmFoBHaETt+Uw4tIwbd8IrrBRSA2sPPHc6lj6bb/2ukrL;
- Envelope-to: linda@xxxxxxxxxxxxxx
- In-reply-to: <016301cc6182$a4f23040$eed690c0$@buildingperformanceteam.com>
- List-id: <EnergyPlus_Support.yahoogroups.com>
- List-unsubscribe: <mailto:EnergyPlus_Support-unsubscribe@yahoogroups.com>
- Mailing-list: list EnergyPlus_Support@xxxxxxxxxxxxxxx; contact EnergyPlus_Support-owner@xxxxxxxxxxxxxxx
- Reply-to: EnergyPlus_Support@xxxxxxxxxxxxxxx
- Sender: EnergyPlus_Support@xxxxxxxxxxxxxxx
- User-agent: eGroups-EW/0.82
Because, if the system requirements for load fighting and minimum fresh air remain the same, the fan will never drop to 30%. I want to prove that if this happens, the relative humidity, temperature, etc. go out of control (even at night).
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Jim Dirkes" <jim@...> wrote:
>
> Dear Jean,
>
>
>
> Why are you not just using a VAV fan with "Fan power minimum flow fraction"
> set for 30%?
>
>
>
> The Building Performance Team
> James V. Dirkes II, P.E., BEMP , LEED AP
> 1631 Acacia Drive NW
> Grand Rapids, MI 49504
> 616 450 8653
>
>
>
> From: EnergyPlus_Support@xxxxxxxxxxxxxxx
> [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Jean marais
> Sent: Tuesday, August 23, 2011 6:19 AM
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Subject: [EnergyPlus_Support] Variable Fan - fans in series
>
>
>
>
>
> Hallo All,
> I need to model that the frequency converters reduce fan volume to 30%
> during off hours. I'm thinking of building 2 fans in series, where the one
> fan can only manage 30% of the other fan's volume capacity as it's maximum
> volume flow rate. Then I can simply switch between them using schedules.
> What do you think?
>
------------------------------------
Primary EnergyPlus support is found at:
http://energyplus.helpserve.com or send a message to energyplus-support@xxxxxxxx
The primary EnergyPlus web site is found at:
http://www.energyplus.gov
The group web site is:
http://groups.yahoo.com/group/EnergyPlus_Support/
Attachments are currently allowed but be mindful that not everyone has a high speed connection. Limit attachments to small files.
EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/EnergyPlus_Support/
<*> Your email settings:
Individual Email | Traditional
<*> To change settings online go to:
http://groups.yahoo.com/group/EnergyPlus_Support/join
(Yahoo! ID required)
<*> To change settings via email:
EnergyPlus_Support-digest@xxxxxxxxxxxxxxx
EnergyPlus_Support-fullfeatured@xxxxxxxxxxxxxxx
<*> To unsubscribe from this group, send an email to:
EnergyPlus_Support-unsubscribe@xxxxxxxxxxxxxxx
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/