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Ali Javed, It is preferable to create an external data file for Type107 that corresponds with the actual absorption chiller that you are trying to analyze. However, if you do not have any such performance data then the sample data file associated with Type107 can be used. We did some work many years ago to look at what the performance curves of various pieces of HVAC equipment look like when you divide all of the performance points by their value at the rated condition. Some equipment (such as constant-speed compressor heat pumps) all start to look basically the same when their performance is normalized. Some other equipment (notably absorption chillers, which is why I am bothering you with this...) do not look similar to one another when normalized. The take-away here is that if at all possible, get performance data for the absorption chiller manufacturer and model that you are planning to use. Best, David On 4/14/2014 02:22, ali javed 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 |