Abhay, The sample data file does come from an actual chiller and it is common to see much higher COPs when the chiller is running at part load. One thing to bear in mind, though is that while data in the external file is interpolated within the range covered by the file, it is not extrapolated beyond the range given. If you have a poorly sized chiller and it is running at some point either above or below the range in the data file, you may not get correct results. It is always best to use a data file for the chiller that you want to use. Such data is available at manufacturer's websites. TRNSYS does not have the ability to autosize components. Kind regards, David On 11/14/2013 06:04, Abhay Pratap Singh
wrote:
-- *************************** 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 |