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Re: [EnergyPlus_Support] No flowrate in the plant loop. Please help!!



Try reporting the heating/cooling demand on the loop and see if that is ever non-zero in order to turn on the loop.  What type of operation scheme are you using on this loop?  Have you tried a constant speed pump just to see if that at least gets things moving?  If not, see if that helps and that will at least help guide to a solution.

Edwin

On Sun, Apr 29, 2012 at 19:43, denergyplus <denergyplus@xxxxxxxxx> wrote:
 

Hi dear forum!

My model has LowTemperatureRadiant:VariableFlow as a zoneHVAC system, and GroundSource HeatPump as a plant with a VariableFlow Pump.
There's no air distribution system except zone airmodel(zone earth tube), thus, no humidity control so far.
But, the serious problem I have now is that there's zero flowrate in the water-side loop, thus the air temperature of the zone is very high(above 40C). Putting aside the high humidity problem(since there's no control for humidity yet) or lack of cooling capacity, I can't find the reason why the system doesn't react to the zone load at all.
I've been comparing to other example idf files for plant loop configuration, checked every operational schedules and so on for several days now. It feels like a dead-end..

Please, any advice will be a great help for me!

Thank you in advance!!




--
Edwin Lee
Doctoral Candidate, Oklahoma State University
ASHRAE Student Member, ASHRAE OSU Student Branch President
Office: ATRC 303: 405-744-3727



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