Michael, I think the place to start is in defining your building. If you just need an example building then you can use one of the ones that is in the ..\TrnsysXX\Examples\ folder and create two versions of it, one with a radiant HVAC system and one with the system against which you want to compare it. Once you have the building running with its two alternative systems outputting the annual power consumed by each system, you can use either Type29 in the standard library or Type582 in the TESS Utility Library to do the LCC analysis. Regards, David On 9/22/2011 10:06, Enyuan Hu wrote: Dear all, -- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley@tess-inc.com http://www.tess-inc.com http://www.trnsys.com |