[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [EnergyPlus_Support] Zone Ventilation Fan Electric Consumption



Narj,
I do not think you can get night ventilation from design flow rate. 
What I think you need to do is have a fan connected to an outdoor air node, and setup with an availability manager. There are a couple example files for this that come with e+..
To use them I think you would need to use a HVAC template, I find the heat pump to be strait forward. I am busy with a project today but will look for the files I used for similar and send them to you when I dig them up..




Jeremiah D. Crossett
CleanTech Analytics
503-688-8951
www.cleantechanalytics.com


This document may contain valuable information proprietary to CleanTech Analytics which is private and confidential. It may not be shared, copied, stored or transmitted in any form without the prior written consent of CleanTech Analytics




On Mon, Jul 16, 2012 at 9:55 AM, Niraj Poudel <nirajpdl@xxxxxxxxx> wrote:
 

Dear all,


I have modeled an office room with night time forced ventilation that turns on when the outdoor temperature is 2 degrees below the indoor temperature. Since I am not familiar with HVAC systems I am having difficulty obtaining the fan electric consumption using an ideal air loads system. I have attached my .IDF file to this email. If anyone has the time to look at the Ventilation Object and help me figure out the "Zone Ventilation fan electric consumption" I would greatly appreciate it.

Furthermore, the I/O Reference states that when using the balanced "ventilation type" as opposed to intake or exhaust, the fan electric consumption would be twice that of intake or exhaust. When in fact, intuitively it seems as though if you have two fans working in tandem (one intake, one exhaust = Balanced) each fan only needs to work half as much if there were only one fan, to get the job done? 

Thanking you,
Niraj Poudel  

--
Niraj Poudel, Architectural Engineer.
PhD student, PDBE Program.
Clemson University, Clemson, SC.





__._,_.___


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.



Your email settings: Individual Email|Traditional
Change settings via the Web (Yahoo! ID required)
Change settings via email: Switch delivery to Daily Digest | Switch to Fully Featured
Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe

__,_._,___