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

Re: [EnergyPlus_Support] Boiler Sizing



If the load is 910 kW, then the Load Range needs to account for that. 
The load range does not set the equipment size, it determines which 
equipment operates. I'm surprised you didn't see an error in the err file.

JV Dirkes II wrote:
>
> Dear E+ Forum,
>
> I've just run a model for which I specified the Boiler:Simple "Nominal
> capacity" for two boilers as 205kW each, The HEATING LOAD RANGE BASED
> OPERATION is set up so that the upper limit of Load Range 1 was 190kW,
> and the upper limit of Load Range 2 was 380kW.
> For this run, E+ calculates the heating load as 910kW. This strikes
> me as odd; it seems that the boiler capacity should be limited to no
> more than 410kW or perhaps 380kW.
>
> Another aspect of this problem is that Pump #2 never operates. I have
> two branches, each of which has a pump and boiler. The Pump#2 +
> boiler#2 branch never operates, even though it's schedule is always
> "on". (.svg file shows everything connected as I expect.)
>
> Any suggestions regarding what might cause these problems? Thanks in
> advance.
>
>  

-- 
Richard A. Raustad
Senior Research Engineer
Florida Solar Energy Center
University of Central Florida
1679 Clearlake Road
Cocoa, FL  32922-5703
Phone:   (321) 638-1454
Fax:     (321) 638-1439 or 1010
Visit our web site at: http://www.fsec.ucf.edu

UCF - From Promise to Prominence: Celebrating 40 Years


------------------------------------

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.
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:
    mailto:EnergyPlus_Support-digest@xxxxxxxxxxxxxxx 
    mailto: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/