I meant use some condition when x is 0.i use x because the EMS language processor / parser is somewhat challenged. Better to make baby steps than assuming it can parse big expressions.
(I know -- I've been tweaking it when users come up with things that don't work but don't give an error).
mass flow rates will be set when ever the equipment is on, for sure. but there may be other considerations.
I would also be reporting it at the detailed level so you can compare. On 08.03.2012 16:39, Nacho Gomis wrote:
What does it means "condition 1"? The value of X will be always 0,as I said before I think the problem is where and when EnergyPlus set the flow rate. Thanks Linda, Ignacio Gomis On 9 March 2012 00:25, Linda Lawrie wrote:At 04:12 PM 3/8/2012, Nacho Gomis wrote:EnergyManagementSystem:Program, CndFlowControl, !- Name SET DeltaT = CndLoad/(FlowRate*4180), !- Program Line 1Strictly from a programming standpoint I would probably do something like: Set x=FlowRate*4180, IF (X == 0), condition 1, else Set DeltaT=CndLoad/x endif And I'd do verbose output and look at the edd file Are the two else conditions okay without an endif? (as you have it in your program segment)?__._,_.___ Primary EnergyPlus support is found at: http://energyplus.helpserve.com [2] or send a message to energyplus-support@xxxxxxxx The primary EnergyPlus web site is found at: http://www.energyplus.gov [3] The group web site is: http://groups.yahoo.com/group/EnergyPlus_Support/ [4] 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 [5] (Yahoo! ID required) Change settings via email: Switch delivery to Daily Digest [6] | Switch to Fully Featured Visit Your Group [7] | Yahoo! Groups Terms of Use [8] | Unsubscribe [9] __,_._,___ Links: ------ [1] mailto:linda@xxxxxxxxxxxxxx [2] http://energyplus.helpserve.com [3] http://www.energyplus.gov [4] http://groups.yahoo.com/group/EnergyPlus_Support/ [5] http://groups.yahoo.com/group/EnergyPlus_Support/join;_ylc=X3oDMTJmNHZuNWNoBF9TAzk3NDc2NTkwBGdycElkAzMzODc0ODgEZ3Jwc3BJZAMxNzA1MDA3Mzg5BHNlYwNmdHIEc2xrA3N0bmdzBHN0aW1lAzEzMzEyNTAwMzA- [6] mailto:EnergyPlus_Support-digest@xxxxxxxxxxxxxxx?subject=EmailDelivery:Digest [7] http://groups.yahoo.com/group/EnergyPlus_Support;_ylc=X3oDMTJkaHF0Mm4yBF9TAzk3NDc2NTkwBGdycElkAzMzODc0ODgEZ3Jwc3BJZAMxNzA1MDA3Mzg5BHNlYwNmdHIEc2xrA2hwZgRzdGltZQMxMzMxMjUwMDMw [8] http://docs.yahoo.com/info/terms/[9] mailto:EnergyPlus_Support-unsubscribe@xxxxxxxxxxxxxxx?subject=Unsubscribe