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Esteban, I have had some success in contacting manufacturer's representatives and asking them to generate a few additional performance points. These days more and more manufacturers rely on software to generate performance estimates rather than on catalogs so it is hard to find a complete map in *.pdf form! If that tactic does not work then you may be able to use the example data file for your off-design points. Some HVAC equipment normalizes very well; in other words if you look at the performance of an air cooled chiller at a given operating point divided by the performance at the rated point, it looks quite the same as a lot of other air cooled chillers and even like other sizes of air cooled chiller. Other HVAc equipment does not normalize so well (absorption chillers are a good example). I have never looked directly at cooling coils so I am afraid that I can't offer any very specific advice there. Kind regards, David On 4/2/2012 15:52, Esteban De Jesus Quintana Miranda 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 |