Re: [EnergyPlus_Support] Natural Ventilation

Subject: Re: [EnergyPlus_Support] Natural Ventilation

From: Ana Paula Melo <apaula_melo@xxxxxxxxx>

Date: Fri, 27 Jun 2008 10:21:08 -0700 (PDT)

Comment: DomainKeys? See http://antispam.yahoo.com/domainkeys

Delivered-to: mailing list EnergyPlus_Support@xxxxxxxxxxxxxxx

Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=lima; d=yahoogroups.com; b=CChyZkgmjLHt1LnHiICqfNivAzIAkbURhYbAjW0MTTkTcGqs2qX3Wxf5iFiuAZ4ucL+aGGr6BGcSLFV2cm26G1iYuluA3T6xqZLNuVuhWtweQbwURwlBVS4bNT2klO1P;

In-reply-to: <CBD2B0C2B35A4DE185C2E3878FE03AB7@GU>

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

Lixing Gu,

Thanks so much. Now the simulation is OK!!!

Best Regards,

Ana Paula.

--- On Fri, 6/27/08, Lixing Gu <gu@xxxxxxxxxxxx> wrote:

From: Lixing Gu <gu@xxxxxxxxxxxx>
Subject: Re: [EnergyPlus_Support] Natural Ventilation
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Date: Friday, June 27, 2008, 2:55 PM

Ana Paula:

The zone temperature (Tzone) used to activate natural ventilation is not Zone Operative Temperature. Tzone is "Zone/Sys Air Temperature" . Please rerun the input by adding a new report variable of zone temperature and let me know what happens.

Best regards,

Lixing Gu

----- Original Message -----

From: Ana Paula Melo

To: EnergyPlus_Support@ yahoogroups. com

Sent: Thursday, June 26, 2008 4:58 PM

Subject: [EnergyPlus_ Support] Natural Ventilation

Hi,

I have some problems using the EnergyPlus to simulate natural ventilation.

During my simulation I used the TEMPERATURE as Ventilation Control Mode.

So, my building will be ventilated if:

Tzone>Tout and Tzone>Tsetpoint and If Venting Availability Schedule permits.

I analyzed the outputs (Outdoor Dry Bulb/Opening Factor Multiplier for Venting Modulation/Zone Operative Temperature) and I noticed that during some hours the natural ventilation is being used in a wrong away. For example: 02/27 the Tzone<Tout but the ventilation is used.

I attached an excel file that shows it. I am using the Florianopolis weather file (TRY1963.epw) .

Do you know what is happening?

Thanks for all,

Ana Paula.

__._,_.___

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 not allowed -- please post any files to the appropriate folder in the Files area of the Support Web Site.

EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.

__,_._,___