Dear Raksit,
I have a couple of comments about this. First of all, it is difficult to see the exact error without seeing the listing (*.lst) file. Also, when converting humidity ratio to %RH, simply use the Type33 component which calls the Pyschrometric subroutine to calculate the moist air properties. However, I would recommend that you simply use Type642 diverter from the TESS Hydronics Library which has a %RH input.
Best regards,
Matt Duffy
On 2013-03-15 03:33, Raksit Pattanapitoon wrote:
Dear all,I have been running into this error message:TRNSYS Message 25 : Error in determining the unit number specified in an EQUATION. To reference an OUTPUT in a TRNSYS EQUATION, both the UNIT number and OUTPUT number must be enclosed by square brackets and separated by a comma. For example [1,2]I think this probably comes from the Equation I use to convert between humidity ratio and %RH (if the error message means something else please let me know). The conversion is necessary because the moist air flow mixer (type 11c) and moist air tee-piece (type 11g) that I'm using need humidity ratio as input/output but my TRNBuild component outputs %RH. Even though I use Equation to change the value, the unit is not changed and thus I am still connecting %RH output to humidity ratio input which causes the error. Does anyone know a way around this?Thank you for your help in advance!Best,Raksit--
Raksit Pattanapitoon
Cornell University Mechanical EngineeringB.S. 2012, M.Eng. 2013